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Qureshi N, Woods B, Neves de Faria R, Saramago Goncalves P, Cox E, Leonardi Bee J, Condon L, Weng S, Akyea RK, Iyen B, Roderick P, Humphries SE, Rowlands W, Watson M, Haralambos K, Kenny R, Datta D, Miedzybrodzka Z, Byrne C, Kai J. Alternative cascade-testing protocols for identifying and managing patients with familial hypercholesterolaemia: systematic reviews, qualitative study and cost-effectiveness analysis. Health Technol Assess 2023; 27:1-140. [PMID: 37924278 PMCID: PMC10658348 DOI: 10.3310/ctmd0148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2023] Open
Abstract
Background Cascade testing the relatives of people with familial hypercholesterolaemia is an efficient approach to identifying familial hypercholesterolaemia. The cascade-testing protocol starts with identifying an index patient with familial hypercholesterolaemia, followed by one of three approaches to contact other relatives: indirect approach, whereby index patients contact their relatives; direct approach, whereby the specialist contacts the relatives; or a combination of both direct and indirect approaches. However, it is unclear which protocol may be most effective. Objectives The objectives were to determine the yield of cases from different cascade-testing protocols, treatment patterns, and short- and long-term outcomes for people with familial hypercholesterolaemia; to evaluate the cost-effectiveness of alternative protocols for familial hypercholesterolaemia cascade testing; and to qualitatively assess the acceptability of different cascade-testing protocols to individuals and families with familial hypercholesterolaemia, and to health-care providers. Design and methods This study comprised systematic reviews and analysis of three data sets: PASS (PASS Software, Rijswijk, the Netherlands) hospital familial hypercholesterolaemia databases, the Clinical Practice Research Datalink (CPRD)-Hospital Episode Statistics (HES) linked primary-secondary care data set, and a specialist familial hypercholesterolaemia register. Cost-effectiveness modelling, incorporating preceding analyses, was undertaken. Acceptability was examined in interviews with patients, relatives and health-care professionals. Result Systematic review of protocols: based on data from 4 of the 24 studies, the combined approach led to a slightly higher yield of relatives tested [40%, 95% confidence interval (CI) 37% to 42%] than the direct (33%, 95% CI 28% to 39%) or indirect approaches alone (34%, 95% CI 30% to 37%). The PASS databases identified that those contacted directly were more likely to complete cascade testing (p < 0.01); the CPRD-HES data set indicated that 70% did not achieve target treatment levels, and demonstrated increased cardiovascular disease risk among these individuals, compared with controls (hazard ratio 9.14, 95% CI 8.55 to 9.76). The specialist familial hypercholesterolaemia register confirmed excessive cardiovascular morbidity (standardised morbidity ratio 7.17, 95% CI 6.79 to 7.56). Cost-effectiveness modelling found a net health gain from diagnosis of -0.27 to 2.51 quality-adjusted life-years at the willingness-to-pay threshold of £15,000 per quality-adjusted life-year gained. The cost-effective protocols cascaded from genetically confirmed index cases by contacting first- and second-degree relatives simultaneously and directly. Interviews found a service-led direct-contact approach was more reliable, but combining direct and indirect approaches, guided by index patients and family relationships, may be more acceptable. Limitations Systematic reviews were not used in the economic analysis, as relevant studies were lacking or of poor quality. As only a proportion of those with primary care-coded familial hypercholesterolaemia are likely to actually have familial hypercholesterolaemia, CPRD analyses are likely to underestimate the true effect. The cost-effectiveness analysis required assumptions related to the long-term cardiovascular disease risk, the effect of treatment on cholesterol and the generalisability of estimates from the data sets. Interview recruitment was limited to white English-speaking participants. Conclusions Based on limited evidence, most cost-effective cascade-testing protocols, diagnosing most relatives, select index cases by genetic testing, with services directly contacting relatives, and contacting second-degree relatives even if first-degree relatives have not been tested. Combined approaches to contact relatives may be more suitable for some families. Future work Establish a long-term familial hypercholesterolaemia cohort, measuring cholesterol levels, treatment and cardiovascular outcomes. Conduct a randomised study comparing different approaches to contact relatives. Study registration This study is registered as PROSPERO CRD42018117445 and CRD42019125775. Funding This project was funded by the National Institute for Health and Care Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 27, No. 16. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- Nadeem Qureshi
- PRISM Research Group, Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Bethan Woods
- Centre for Health Economics, University of York, York, UK
| | | | | | - Edward Cox
- Centre for Health Economics, University of York, York, UK
| | - Jo Leonardi Bee
- PRISM Research Group, Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Laura Condon
- PRISM Research Group, Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Stephen Weng
- Cardiovascular and Metabolism, Janssen Research and Development, High Wycombe, UK
| | - Ralph K Akyea
- PRISM Research Group, Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Barbara Iyen
- PRISM Research Group, Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Paul Roderick
- Primary Care, Population Sciences and Medical Education, University of Southampton, Southampton, UK
| | - Steve E Humphries
- Centre for Cardiovascular Genetics, Institute for Cardiovascular Science, University College London, London, UK
| | | | - Melanie Watson
- Wessex Clinical Genetics Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Kate Haralambos
- Familial Hypercholesterolaemia Service, University Hospital of Wales, Cardiff, UK
| | - Ryan Kenny
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Dev Datta
- Lipid Unit, University Hospital Llandough, Penarth, UK
| | | | - Christopher Byrne
- Southampton National Institute for Health and Care Research Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Joe Kai
- PRISM Research Group, Centre for Academic Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
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Kerr SM, Edwards R, Buchanan D, Dean J, Miedzybrodzka Z, Wilson JF. VIKING II, a worldwide observational cohort of volunteers with northern isles ancestry. Int J Popul Data Sci 2023; 8:2121. [PMID: 37670955 PMCID: PMC10476511 DOI: 10.23889/ijpds.v8i1.2121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023] Open
Abstract
Introduction The purpose of VIKING II is to create an observational cohort of volunteers with ancestry from the Northern Isles of Scotland, primarily for identifying genetic variants influencing disease. The new online protocol is separate to, but follows on from, earlier genetic epidemiological clinic-based studies in the isolated populations of Orkney and Shetland. These populations are favourable for the study of rarer genetic variants due to genetic drift, the large number of relatives, and availability of pedigree information. They are known to be genetically distinct from mainland British populations. Methods and analysis Online methods are being used to recruit ~4,000 people who have Northern Isles ancestry, living anywhere in the world. The option for participants to have actionable genetic results returned is offered. Consent will be taken electronically. Data will be collected at baseline through an online questionnaire and longitudinally through linkage to NHS data in the electronic health record. The questionnaire collects a variety of phenotypes including personal and family health. DNA will be extracted from saliva samples then genome-wide genotyped and exome sequenced. VIKING II aims to capitalise on the special features of the Northern Isles populations to create a research cohort that will facilitate the analysis of genetic variants associated with a broad range of traits and disease endpoints, including otherwise rare variants that have drifted to high frequency in these populations. Ethics and dissemination The South East Scotland Research Ethics Committee gave the study a favourable opinion. VIKING II is sponsored by the University of Edinburgh and NHS Lothian. Summary research findings will be disseminated to participants and funding bodies, presented at conferences and reported in peer-reviewed publications. Article summary Strengths and limitations of this studyDetailed data and biological sample collection of research volunteers with unique ancestry.Consent for access to routinely collected clinical EHR data and for future re-contact, providing a longitudinal component.Optional consent for return of actionable genetic results.~4,000 participants is a relatively small number for certain types of genetic analyses, so the cohort is underpowered on its own, in some study designs.Resources to maintain the cohort, and to store data and DNA samples, are significant, with sustainability dependent on infrastructure support and funding.
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Affiliation(s)
- Shona M. Kerr
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
| | - Rachel Edwards
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
| | - David Buchanan
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
| | - John Dean
- Medical Genetics Group, University of Aberdeen, Polwarth Building, Aberdeen, AB25 2ZD, UK
- Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, AB25 2ZA, UK
| | - Zosia Miedzybrodzka
- Medical Genetics Group, University of Aberdeen, Polwarth Building, Aberdeen, AB25 2ZD, UK
- Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, AB25 2ZA, UK
| | - James F. Wilson
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
- Centre for Global Health Research, Usher Institute, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK
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Kerr SM, Cowan E, Klaric L, Bell C, O'Sullivan D, Buchanan D, Grzymski JJ, van Hout CV, Tzoneva G, Shuldiner AR, Wilson JF, Miedzybrodzka Z. Clinical case study meets population cohort: identification of a BRCA1 pathogenic founder variant in Orcadians. Eur J Hum Genet 2023; 31:588-595. [PMID: 36927983 PMCID: PMC10172333 DOI: 10.1038/s41431-023-01297-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 12/20/2022] [Accepted: 01/18/2023] [Indexed: 03/18/2023] Open
Abstract
We multiply ascertained the BRCA1 pathogenic missense variant c.5207T > C; p.Val1736Ala (V1736A) in clinical investigation of breast and ovarian cancer families from Orkney in the Northern Isles of Scotland, UK. We sought to investigate the frequency and clinical relevance of this variant in those of Orcadian ancestry as an exemplar of the value of population cohorts in clinical care, especially in isolated populations. Oral history and birth, marriage and death registrations indicated genealogical linkage of the clinical cases to ancestors from the Isle of Westray, Orkney. Further clinical cases were identified through targeted testing for V1736A in women of Orcadian ancestry attending National Health Service (NHS) genetic clinics for breast and ovarian cancer family risk assessments. The variant segregates with female breast and ovarian cancer in clinically ascertained cases. Separately, exome sequence data from 2088 volunteer participants with three or more Orcadian grandparents, in the ORCADES research cohort, was interrogated to estimate the population prevalence of V1736A in Orcadians. The effects of the variant were assessed using Electronic Health Record (EHR) linkage. Twenty out of 2088 ORCADES research volunteers (~1%) carry V1736A, with a common haplotype around the variant. This allele frequency is ~480-fold higher than in UK Biobank participants. Cost-effectiveness of population screening for BRCA1 founder pathogenic variants has been demonstrated at a carrier frequency below the ~1% observed here. Thus we suggest that Orcadian women should be offered testing for the BRCA1 V1736A founder pathogenic variant, starting with those with known Westray ancestry.
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Affiliation(s)
- Shona M Kerr
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
| | - Emma Cowan
- Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, AB25 2ZA, UK
| | - Lucija Klaric
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
| | - Christine Bell
- Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, AB25 2ZA, UK
| | - Dawn O'Sullivan
- Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, AB25 2ZA, UK
| | - David Buchanan
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
| | - Joseph J Grzymski
- Center for Genomic Medicine, Desert Research Institute, Reno, NV, USA
- Renown Health, Reno, NV, USA
| | - Cristopher V van Hout
- Regeneron Genetics Center, Tarrytown, NY, USA
- Laboratorio Internacional de Investigatión sobre el Genoma Humano, Campus Juriquilla de la Universidad Nacional Autónoma de México, Querétaro, Querétaro, 76230, México
| | | | | | - James F Wilson
- MRC Human Genetics Unit, University of Edinburgh, Institute of Genetics and Cancer, Western General Hospital, Crewe Road, Edinburgh, EH4 2XU, UK
- Centre for Global Health Research, Usher Institute, University of Edinburgh, Teviot Place, Edinburgh, EH8 9AG, UK
| | - Zosia Miedzybrodzka
- Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, AB25 2ZA, UK.
- Medical Genetics Group, School of Medicine, Medical Sciences, Nutrition and Dentistry, University of Aberdeen, Polwarth Building, Aberdeen, AB25 2ZD, UK.
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Bashir B, Ho JH, Downie P, Hamilton P, Ferns G, Datta D, Cegla J, Wierzbicki AS, Dawson C, Jenkinson F, Delaney H, Mansfield M, Teoh Y, Miedzybrodzka Z, Haso H, Durrington PN, Soran H. Severe Hypertriglyceridaemia and Chylomicronaemia Syndrome-Causes, Clinical Presentation, and Therapeutic Options. Metabolites 2023; 13:metabo13050621. [PMID: 37233662 DOI: 10.3390/metabo13050621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 03/27/2023] [Accepted: 04/11/2023] [Indexed: 05/27/2023] Open
Abstract
We have reviewed the genetic basis of chylomicronaemia, the difference between monogenic and polygenic hypertriglyceridaemia, its effects on pancreatic, cardiovascular, and microvascular complications, and current and potential future pharmacotherapies. Severe hypertriglyceridaemia (TG > 10 mmol/L or 1000 mg/dL) is rare with a prevalence of <1%. It has a complex genetic basis. In some individuals, the inheritance of a single rare variant with a large effect size leads to severe hypertriglyceridaemia and fasting chylomicronaemia of monogenic origin, termed as familial chylomicronaemia syndrome (FCS). Alternatively, the accumulation of multiple low-effect variants causes polygenic hypertriglyceridaemia, which increases the tendency to develop fasting chylomicronaemia in presence of acquired factors, termed as multifactorial chylomicronaemia syndrome (MCS). FCS is an autosomal recessive disease characterized by a pathogenic variant of the lipoprotein lipase (LPL) gene or one of its regulators. The risk of pancreatic complications and associated morbidity and mortality are higher in FCS than in MCS. FCS has a more favourable cardiometabolic profile and a low prevalence of atherosclerotic cardiovascular disease (ASCVD) compared to MCS. The cornerstone of the management of severe hypertriglyceridaemia is a very-low-fat diet. FCS does not respond to traditional lipid-lowering therapies. Several novel pharmacotherapeutic agents are in various phases of development. Data on the correlation between genotype and phenotype in FCS are scarce. Further research to investigate the impact of individual gene variants on the natural history of the disease, and its link with ASCVD, microvascular disease, and acute or recurrent pancreatitis, is warranted. Volanesorsen reduces triglyceride concentration and frequency of pancreatitis effectively in patients with FCS and MCS. Several other therapeutic agents are in development. Understanding the natural history of FCS and MCS is necessary to rationalise healthcare resources and decide when to deploy these high-cost low-volume therapeutic agents.
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Affiliation(s)
- Bilal Bashir
- Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PL, UK
- Department of Endocrinology, Diabetes & Metabolism, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - Jan H Ho
- Department of Endocrinology, The Christie NHS Foundation Trust, Manchester M20 4BX, UK
| | - Paul Downie
- Department of Laboratory Medicine, Salisbury NHS Foundation Trust, Salisbury SP2 8BJ, UK
| | - Paul Hamilton
- Centre for Medical Education, Queen's University Belfast, Belfast BT7 1NN, UK
- Department of Clinical Biochemistry, Belfast Health and Social Care Trust, Belfast BT13 1FD, UK
| | - Gordon Ferns
- Brighton and Sussex Medical School, Brighton BN1 9PH, UK
| | - Dev Datta
- Lipid Unit, University Hospital Llandough, Cardiff CF64 2XX, UK
| | - Jaimini Cegla
- Division of Diabetes, Endocrinology and Metabolism, Imperial College London, London SW7 2BX, UK
| | - Anthony S Wierzbicki
- Department of Metabolic Medicine and Chemical Pathology, Guy's and St. Thomas' Hospitals, London SE1 7EH, UK
| | - Charlotte Dawson
- Department of Metabolic Medicine, Queen Elizabeth Hospital NHS Foundation Trust, Birmingham PE30 4ET, UK
| | - Fiona Jenkinson
- Clinical Biochemistry and Metabolic Medicine, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP, UK
| | - Hannah Delaney
- Department of Clinical Chemistry, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield S10 2JF, UK
| | - Michael Mansfield
- Leeds Centre for Diabetes & Endocrinology, Leeds Teaching Hospitals NHS Trust, Leeds LS9 7TF, UK
| | - Yee Teoh
- Department of Chemical Pathology & Metabolic Medicine, Wrexham Maelor Hospital, Wrexham LL13 7TD, UK
| | - Zosia Miedzybrodzka
- Department of Medical Genetics, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen AB24 3FX, UK
| | - Haya Haso
- School of Medicine, University of Kurdistan Hewler, Erbil 44001, Iraq
| | - Paul N Durrington
- Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PL, UK
| | - Handrean Soran
- Faculty of Biology Medicine and Health, University of Manchester, Manchester M13 9PL, UK
- Department of Endocrinology, Diabetes & Metabolism, Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
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Hocking LJ, Andrews C, Armstrong C, Ansari M, Baty D, Berg J, Bradley T, Clark C, Diamond A, Doherty J, Lampe A, McGowan R, Moore DJ, O'Sullivan D, Purvis A, Santoyo-Lopez J, Westwood P, Abbott M, Williams N, Aitman TJ, Miedzybrodzka Z, Humphrey WI, Martin S, Meynert A, Murphy F, Nourse C, Semple CA, Williams N, Dean J, Foley P, Robertson L, Ross A, Williamson K, Berg J, Goudie D, McWilliam C, Fitzpatrick D, Fletcher E, Jackson A, Lam W, Porteous M, Barr K, Bradshaw N, Davidson R, Gardiner C, Gorrie J, Hague R, Hamilton M, Joss S, Kinning E, Longman C, Martin N, McGowan R, Paterson J, Pilz D, Snadden L, Tobias E, Wedderburn S, Whiteford M, Aitman TJ, Miedzybrodzka Z. Genome sequencing with gene panel-based analysis for rare inherited conditions in a publicly funded healthcare system: implications for future testing. Eur J Hum Genet 2023; 31:231-238. [PMID: 36474026 PMCID: PMC9905562 DOI: 10.1038/s41431-022-01226-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/14/2022] [Accepted: 10/25/2022] [Indexed: 12/12/2022] Open
Abstract
NHS genetics centres in Scotland sought to investigate the Genomics England 100,000 Genomes Project diagnostic utility to evaluate genome sequencing for in rare, inherited conditions. Four regional services recruited 999 individuals from 394 families in 200 rare phenotype categories, with negative historic genetic testing. Genome sequencing was performed at Edinburgh Genomics, and phenotype and sequence data were transferred to Genomics England for variant calling, gene-based filtering and variant prioritisation. NHS Scotland genetics laboratories performed interpretation, validation and reporting. New diagnoses were made in 23% cases - 19% in genes implicated in disease at the time of variant prioritisation, and 4% from later review of additional genes. Diagnostic yield varied considerably between phenotype categories and was minimal in cases with prior exome testing. Genome sequencing with gene panel filtering and reporting achieved improved diagnostic yield over previous historic testing but not over now routine trio-exome sequence tests. Re-interpretation of genomic data with updated gene panels modestly improved diagnostic yield at minimal cost. However, to justify the additional costs of genome vs exome sequencing, efficient methods for analysis of structural variation will be required and / or cost of genome analysis and storage will need to decrease.
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Affiliation(s)
- Lynne J Hocking
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK
| | - Claire Andrews
- East of Scotland Regional Genetics Service, NHS Tayside, Ninewells Hospital, Dundee, Scotland, UK
| | - Christine Armstrong
- North of Scotland Medical Genetic Service, NHS Grampian, Polwarth Building, Foresterhill, Aberdeen, Scotland, UK
| | - Morad Ansari
- South East Scotland Genetic Service, NHS Lothian, Western General Hospital, Edinburgh, Scotland, UK
| | - David Baty
- East of Scotland Regional Genetics Service, NHS Tayside, Ninewells Hospital, Dundee, Scotland, UK
| | - Jonathan Berg
- East of Scotland Regional Genetics Service, NHS Tayside, Ninewells Hospital, Dundee, Scotland, UK.,School of Medicine, University of Dundee, Dundee, Scotland, UK
| | - Therese Bradley
- West of Scotland Centre for Genomic Medicine, NHS Greater Glasgow & Clyde, Queen Elizabeth University Hospital, Glasgow, Scotland, UK
| | - Caroline Clark
- North of Scotland Medical Genetic Service, NHS Grampian, Polwarth Building, Foresterhill, Aberdeen, Scotland, UK
| | - Austin Diamond
- South East Scotland Genetic Service, NHS Lothian, Western General Hospital, Edinburgh, Scotland, UK
| | - Jill Doherty
- West of Scotland Centre for Genomic Medicine, NHS Greater Glasgow & Clyde, Queen Elizabeth University Hospital, Glasgow, Scotland, UK
| | - Anne Lampe
- South East Scotland Genetic Service, NHS Lothian, Western General Hospital, Edinburgh, Scotland, UK
| | - Ruth McGowan
- West of Scotland Centre for Genomic Medicine, NHS Greater Glasgow & Clyde, Queen Elizabeth University Hospital, Glasgow, Scotland, UK.,School of Medicine, Dentistry & Nursing, University of Glasgow, Glasgow, Scotland, UK
| | - David J Moore
- South East Scotland Genetic Service, NHS Lothian, Western General Hospital, Edinburgh, Scotland, UK
| | - Dawn O'Sullivan
- North of Scotland Medical Genetic Service, NHS Grampian, Polwarth Building, Foresterhill, Aberdeen, Scotland, UK
| | - Andrew Purvis
- West of Scotland Centre for Genomic Medicine, NHS Greater Glasgow & Clyde, Queen Elizabeth University Hospital, Glasgow, Scotland, UK
| | | | - Paul Westwood
- West of Scotland Centre for Genomic Medicine, NHS Greater Glasgow & Clyde, Queen Elizabeth University Hospital, Glasgow, Scotland, UK
| | - Michael Abbott
- Health Economics Research Unit, University of Aberdeen, Aberdeen, Scotland, UK
| | - Nicola Williams
- West of Scotland Centre for Genomic Medicine, NHS Greater Glasgow & Clyde, Queen Elizabeth University Hospital, Glasgow, Scotland, UK
| | | | - Timothy J Aitman
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, Scotland, UK.
| | - Zosia Miedzybrodzka
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK. .,North of Scotland Medical Genetic Service, NHS Grampian, Polwarth Building, Foresterhill, Aberdeen, Scotland, UK. .,North of Scotland Regional Genetic Service, NHS Grampian, Ashgrove House, Foresterhill, Aberdeen, Scotland, UK.
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Liu Y, Banka S, Huang Y, Hardman-Smart J, Pye D, Torrelo A, Beaman GM, Kazanietz MG, Baker MJ, Ferrazzano C, Shi C, Orozco G, Eyre S, van Geel M, Bygum A, Fischer J, Miedzybrodzka Z, Abuzahra F, Rübben A, Cuvertino S, Ellingford JM, Smith MJ, Evans DG, Weppner-Parren LJMT, van Steensel MAM, Chaudhary IH, Mangham DC, Lear JT, Paus R, Frank J, Newman WG, Zhang X. Germline intergenic duplications at Xq26.1 underlie Bazex-Dupré-Christol basal cell carcinoma susceptibility syndrome. Br J Dermatol 2022; 187:948-961. [PMID: 35986704 DOI: 10.1111/bjd.21842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/27/2022] [Accepted: 08/18/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Bazex-Dupré-Christol syndrome (BDCS; MIM301845) is a rare X-linked dominant genodermatosis characterized by follicular atrophoderma, congenital hypotrichosis and multiple basal cell carcinomas (BCCs). Previous studies have linked BDCS to an 11·4-Mb interval on chromosome Xq25-q27.1. However, the genetic mechanism of BDCS remains an open question. OBJECTIVES To investigate the genetic aetiology and molecular mechanisms underlying BDCS. METHODS We ascertained multiple individuals from eight unrelated families affected with BDCS (F1-F8). Whole-exome (F1 and F2) and genome sequencing (F3) were performed to identify putative disease-causing variants within the linkage region. Array comparative genomic hybridization and quantitative polymerase chain reaction (PCR) were used to explore copy number variations, followed by long-range gap PCR and Sanger sequencing to amplify the duplication junctions and to define the head-tail junctions. Hi-C was performed on dermal fibroblasts from two affected individuals with BDCS and one control. Public datasets and tools were used to identify regulatory elements and transcription factor binding sites within the minimal duplicated region. Immunofluorescence was performed in hair follicles, BCCs and trichoepitheliomas from patients with BDCS and sporadic BCCs. The ACTRT1 variant c.547dup (p.Met183Asnfs*17), previously proposed to cause BDCS, was evaluated with t allele frequency calculator. RESULTS In eight families with BDCS, we identified overlapping 18-135-kb duplications (six inherited and two de novo) at Xq26.1, flanked by ARHGAP36 and IGSF1. Hi-C showed that the duplications did not affect the topologically associated domain, but may alter the interactions between flanking genes and putative enhancers located in the minimal duplicated region. We detected ARHGAP36 expression near the control hair follicular stem cell compartment, and found increased ARHGAP36 levels in hair follicles in telogen, in BCCs and in trichoepitheliomas from patients with BDCS. ARHGAP36 was also detected in sporadic BCCs from individuals without BDCS. Our modelling showed the predicted maximum tolerated minor allele frequency of ACTRT1 variants in control populations to be orders of magnitude higher than expected for a high-penetrant ultra-rare disorder, suggesting loss of function of ACTRT1 variants to be an unlikely cause for BDCS. CONCLUSIONS Noncoding Xq26.1 duplications cause BDCS. The BDCS duplications most likely lead to dysregulation of ARHGAP36. ARHGAP36 is a potential therapeutic target for both inherited and sporadic BCCs. What is already known about this topic? Bazex-Dupré-Christol syndrome (BDCS) is a rare X-linked basal cell carcinoma susceptibility syndrome linked to an 11·4-Mb interval on chromosome Xq25-q27.1. Loss-of-function variants in ACTRT1 and its regulatory elements were suggested to cause BDCS. What does this study add? BDCS is caused by small tandem noncoding intergenic duplications at chromosome Xq26.1. The Xq26.1 BDCS duplications likely dysregulate ARHGAP36, the flanking centromeric gene. ACTRT1 loss-of-function variants are unlikely to cause BDCS. What is the translational message? This study provides the basis for accurate genetic testing for BDCS, which will aid precise diagnosis and appropriate surveillance and clinical management. ARHGAP36 may be a novel therapeutic target for all forms of sporadic basal cell carcinomas.
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Affiliation(s)
- Yanshan Liu
- McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
| | - Siddharth Banka
- Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Human Sciences, University of Manchester, Manchester, M13 9PL, UK
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | - Yingzhi Huang
- McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
| | - Jonathan Hardman-Smart
- The Centre for Dermatology Research, University of Manchester, MAHSC, and National Institutes of Health Biomedical Research Center, Manchester, M13 9PL, UK
- St John's Institute of Dermatology, Kings College London, London, WC2R 2LS, UK
| | - Derek Pye
- The Centre for Dermatology Research, University of Manchester, MAHSC, and National Institutes of Health Biomedical Research Center, Manchester, M13 9PL, UK
| | - Antonio Torrelo
- Department of Dermatology, Hospital Infantil Universitario Niño Jesús, 28009, Madrid, Spain
| | - Glenda M Beaman
- Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Human Sciences, University of Manchester, Manchester, M13 9PL, UK
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | - Marcelo G Kazanietz
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Martin J Baker
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Carlo Ferrazzano
- Centre for Genetics and Genomics Versus Arthritis Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
| | - Chenfu Shi
- Centre for Genetics and Genomics Versus Arthritis Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
| | - Gisela Orozco
- Centre for Genetics and Genomics Versus Arthritis Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
| | - Stephen Eyre
- Centre for Genetics and Genomics Versus Arthritis Division of Musculoskeletal and Dermatological Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
| | - Michel van Geel
- Department of Dermatology, University Hospital Maastricht, 6229, Maastricht, the Netherlands
- GROW School for Oncology and Developmental Biology, Maastricht University Medical Center+, 6229, Maastricht, the Netherlands
| | - Anette Bygum
- Department of Clinical Genetics, Odense University Hospital, 5230, Odense, Denmark
- Hospital Clinical Institute, University of Southern Denmark, 5230, Odense, Denmark
| | - Judith Fischer
- Institute of Human Genetics, Medical Center, University of Freiburg, 79106, Freiburg, Germany
| | - Zosia Miedzybrodzka
- School of Medicine, Medical Sciences, Nutrition and Dentistry, University of Aberdeen, Aberdeen, AB25 2ZD, UK
- Medical Genetics Department, NHS Grampian, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - Faris Abuzahra
- Department of Dermatology, Zaandam Medical Center, 1502, Zaandam, the Netherlands
| | - Albert Rübben
- Department of Dermatology and Allergology, University Hospital of RWTH Aachen, 52062, Aachen, Germany
| | - Sara Cuvertino
- Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Human Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Jamie M Ellingford
- Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Human Sciences, University of Manchester, Manchester, M13 9PL, UK
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | - Miriam J Smith
- Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Human Sciences, University of Manchester, Manchester, M13 9PL, UK
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | - D Gareth Evans
- Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Human Sciences, University of Manchester, Manchester, M13 9PL, UK
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | | | - Maurice A M van Steensel
- Skin Research Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore, 138543, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University (NTU), Singapore, 636921, Singapore
| | - Iskander H Chaudhary
- Department of Pathology, Royal Liverpool University Hospital, Liverpool, L7 8XP, UK
| | - D Chas Mangham
- Adult Histopathology, Laboratory Medicine, Manchester University NHS Foundation Trust, Health Innovation Manchester, Manchester, M13 9WL, UK
| | - John T Lear
- The Centre for Dermatology Research, University of Manchester, MAHSC, and National Institutes of Health Biomedical Research Center, Manchester, M13 9PL, UK
- Department of Dermatology, Salford Royal NHS Foundation Trust, Manchester, M6 8AD, UK
| | - Ralf Paus
- The Centre for Dermatology Research, University of Manchester, MAHSC, and National Institutes of Health Biomedical Research Center, Manchester, M13 9PL, UK
- Dr Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, 33125, USA
- Monasterium Laboratory, Nano-Bioanalytik Zentrum, D-48149, Münster, Germany
| | - Jorge Frank
- Department of Dermatology, Venereology and Allergology, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - William G Newman
- Division of Evolution, Infection and Genomics, Faculty of Biology, Medicine and Human Sciences, University of Manchester, Manchester, M13 9PL, UK
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | - Xue Zhang
- McKusick-Zhang Center for Genetic Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
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7
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Cunningham-Burley S, McCartney DL, Campbell A, Flaig R, Orange CEL, Porteous C, Aitken M, Mulholland C, Davidson S, McCafferty SM, Murphy L, Wrobel N, McCafferty S, Wallace K, StClair D, Kerr S, Hayward C, McIntosh AM, Sudlow C, Marioni RE, Pell J, Miedzybrodzka Z, Porteous DJ. Feasibility and ethics of using data from the Scottish newborn blood spot archive for research. Commun Med (Lond) 2022; 2:126. [PMID: 36210800 PMCID: PMC9537278 DOI: 10.1038/s43856-022-00189-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 09/21/2022] [Indexed: 11/05/2022] Open
Abstract
Background Newborn heel prick blood spots are routinely used to screen for inborn errors of metabolism and life-limiting inherited disorders. The potential value of secondary data from newborn blood spot archives merits ethical consideration and assessment of feasibility for public benefit. Early life exposures and behaviours set health trajectories in childhood and later life. The newborn blood spot is potentially well placed to create an unbiased and cost-effective population-level retrospective birth cohort study. Scotland has retained newborn blood spots for all children born since 1965, around 3 million in total. However, a moratorium on research access is currently in place, pending public consultation. Methods We conducted a Citizens' Jury as a first step to explore whether research use of newborn blood spots was in the public interest. We also assessed the feasibility and value of extracting research data from dried blood spots for predictive medicine. Results Jurors delivered an agreed verdict that conditional research access to the newborn blood spots was in the public interest. The Chief Medical Officer for Scotland authorised restricted lifting of the current research moratorium to allow a feasibility study. Newborn blood spots from consented Generation Scotland volunteers were retrieved and their potential for both epidemiological and biological research demonstrated. Conclusions Through the Citizens' Jury, we have begun to identify under what conditions, if any, should researchers in Scotland be granted access to the archive. Through the feasibility study, we have demonstrated the potential value of research access for health data science and predictive medicine.
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Affiliation(s)
- Sarah Cunningham-Burley
- grid.4305.20000 0004 1936 7988Centre for Biomedicine, Self and Society, Usher Institute, University of Edinburgh, 23 Buccleuch Place, Edinburgh, EH8 9LN UK
| | - Daniel L. McCartney
- grid.417068.c0000 0004 0624 9907Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Archie Campbell
- grid.417068.c0000 0004 0624 9907Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Robin Flaig
- grid.4305.20000 0004 1936 7988Centre for Medical Informatics, Usher Institute, University of Edinburgh, Nine, Edinburgh Bioquarter, 9 Little France Road, Edinburgh, EH16 4UX UK
| | - Clare E. L. Orange
- grid.511123.50000 0004 5988 7216NHS GGC Biorepository, Level 3, Laboratory Medicine Building, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow, G51 4TY UK
| | - Carol Porteous
- grid.4305.20000 0004 1936 7988Centre for Biomedicine, Self and Society, Usher Institute, University of Edinburgh, 23 Buccleuch Place, Edinburgh, EH8 9LN UK ,grid.417068.c0000 0004 0624 9907Present Address: Edinburgh Clinical Research Facility, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Mhairi Aitken
- grid.4305.20000 0004 1936 7988Centre for Biomedicine, Self and Society, Usher Institute, University of Edinburgh, 23 Buccleuch Place, Edinburgh, EH8 9LN UK ,grid.499548.d0000 0004 5903 3632Present Address: The Alan Turing Institute, British Library, 96 Euston Road, London, NW1 2DB UK
| | - Ciaran Mulholland
- grid.417068.c0000 0004 0624 9907Edinburgh Clinical Research Facility, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Sara Davidson
- grid.417068.c0000 0004 0624 9907Edinburgh Clinical Research Facility, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Selena M. McCafferty
- grid.511123.50000 0004 5988 7216NHS GGC Biorepository, Level 3, Laboratory Medicine Building, Queen Elizabeth University Hospital, 1345 Govan Road, Glasgow, G51 4TY UK
| | - Lee Murphy
- Ipsos MORI Scotland, Links House, 15 Links Pl, Edinburgh, EH6 7EZ UK
| | - Nicola Wrobel
- Ipsos MORI Scotland, Links House, 15 Links Pl, Edinburgh, EH6 7EZ UK
| | - Sarah McCafferty
- Ipsos MORI Scotland, Links House, 15 Links Pl, Edinburgh, EH6 7EZ UK
| | - Karen Wallace
- Medical Genetics, Room 2:041, School of Medicine, Medical Sciences and Nutrition, Polwarth Building, Foresterhill, Aberdeen, AB25 2ZD UK
| | - David StClair
- School of Medicine, Medical Sciences and Nutrition, Foresterhill Health Campus, Foresterhill Rd, Aberdeen, AB25 2ZN UK
| | - Shona Kerr
- grid.417068.c0000 0004 0624 9907MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Caroline Hayward
- grid.417068.c0000 0004 0624 9907MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Andrew M. McIntosh
- grid.4305.20000 0004 1936 7988Centre for Clinical Brain Sciences, Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, EH10 5HF UK
| | - Cathie Sudlow
- grid.4305.20000 0004 1936 7988Centre for Medical Informatics, Usher Institute, University of Edinburgh, Nine, Edinburgh Bioquarter, 9 Little France Road, Edinburgh, EH16 4UX UK
| | - Riccardo E. Marioni
- grid.417068.c0000 0004 0624 9907Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
| | - Jill Pell
- grid.8756.c0000 0001 2193 314XInstitute of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ UK
| | - Zosia Miedzybrodzka
- Medical Genetics, Room 2:041, School of Medicine, Medical Sciences and Nutrition, Polwarth Building, Foresterhill, Aberdeen, AB25 2ZD UK
| | - David J. Porteous
- grid.417068.c0000 0004 0624 9907Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Western General Hospital, Edinburgh, EH4 2XU UK
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8
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Abbott M, McKenzie L, Moran BVG, Heidenreich S, Hernández R, Hocking-Mennie L, Clark C, Gomes J, Lampe A, Baty D, McGowan R, Miedzybrodzka Z, Ryan M. Continuing the sequence? Towards an economic evaluation of whole genome sequencing for the diagnosis of rare diseases in Scotland. J Community Genet 2022; 13:487-501. [PMID: 34415556 PMCID: PMC9530076 DOI: 10.1007/s12687-021-00541-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/15/2021] [Indexed: 11/21/2022] Open
Abstract
Novel developments in genomic medicine may reduce the length of the diagnostic odyssey for patients with rare diseases. Health providers must thus decide whether to offer genome sequencing for the diagnosis of rare conditions in a routine clinical setting. We estimated the costs of singleton standard genetic testing and trio-based whole genome sequencing (WGS), in the context of the Scottish Genomes Partnership (SGP) study. We also explored what users value about genomic sequencing. Insights from the costing and value assessments will inform a subsequent economic evaluation of genomic medicine in Scotland. An average cost of £1,841 per singleton was estimated for the standard genetic testing pathway, with significant variability between phenotypes. WGS cost £6625 per family trio, but this estimate reflects the use of WGS during the SGP project and large cost savings may be realised if sequencing was scaled up. Patients and families valued (i) the chance of receiving a diagnosis (and the peace of mind and closure that brings); (ii) the information provided by WGS (including implications for family planning and secondary findings); and (iii) contributions to future research. Our costings will be updated to address limitations of the current study for incorporation in budget impact modelling and cost-effectiveness analysis (cost per diagnostic yield). Our insights into the benefits of WGS will guide the development of a discrete choice experiment valuation study. This will inform a user-perspective cost-benefit analysis of genome-wide sequencing, accounting for the broader non-health outcomes. Taken together, our research will inform the long-term strategic development of NHS Scotland clinical genetics testing services, and will be of benefit to others seeking to undertake similar evaluations in different contexts.
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Affiliation(s)
- Michael Abbott
- Health Economics Research Unit, University of Aberdeen, Aberdeen, UK.
| | - Lynda McKenzie
- Health Economics Research Unit, University of Aberdeen, Aberdeen, UK
| | | | - Sebastian Heidenreich
- Health Economics Research Unit, University of Aberdeen, Aberdeen, UK
- Evidera Inc., London, UK
| | - Rodolfo Hernández
- Health Economics Research Unit, University of Aberdeen, Aberdeen, UK
| | | | - Caroline Clark
- Department of Medical Genetics, University of Aberdeen, Aberdeen, UK
- NHS Grampian Regional Genetics Service, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Joana Gomes
- NHS Grampian Regional Genetics Service, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Anne Lampe
- South East Scotland Clinical Genetics Service, Western General Hospital, Edinburgh, UK
| | - David Baty
- NHS Tayside Regional Genetics Service, Ninewells Hospital, Dundee, UK
| | - Ruth McGowan
- South East Scotland Clinical Genetics Service, Queen Elizabeth University Hospital, Glasgow, UK
| | | | - Mandy Ryan
- Health Economics Research Unit, University of Aberdeen, Aberdeen, UK
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9
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Loveday C, Garrett A, Law P, Hanks S, Poyastro-Pearson E, Adlard JW, Barwell J, Berg J, Brady AF, Brewer C, Chapman C, Cook J, Davidson R, Donaldson A, Douglas F, Greenhalgh L, Henderson A, Izatt L, Kumar A, Lalloo F, Miedzybrodzka Z, Morrison PJ, Paterson J, Porteous M, Rogers MT, Walker L, Eccles D, Evans DG, Snape K, Hanson H, Houlston RS, Turnbull C. Analysis of rare disruptive germline mutations in 2,135 enriched BRCA-negative breast cancers excludes additional high-impact susceptibility genes. Ann Oncol 2022; 33:1318-1327. [PMID: 36122798 DOI: 10.1016/j.annonc.2022.09.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 08/15/2022] [Accepted: 09/01/2022] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Breast cancer has a significant heritable basis, of which approximately 60% remains unexplained. Testing for BRCA1/BRCA2 offers useful discrimination of breast cancer risk within families, and identification of additional breast cancer susceptibility genes could offer clinical utility. PATIENTS AND METHODS We included 2,135 invasive breast cancer cases recruited via the BOCS study, a retrospective UK study of familial breast cancer. ELIGIBILITY CRITERIA female, BRCA-negative, white European ethnicity, and one of: i) breast cancer family history, ii) bilateral disease, iii) young age of onset (<30 years), iv) concomitant ovarian cancer. We undertook exome sequencing of cases and performed gene-level burden testing of rare damaging variants against those from 51,377 ethnicity-matched population controls from gnomAD. RESULTS 159/2135 (7.4%) cases had a qualifying variant in an established breast cancer susceptibility gene, with minimal evidence of signal in other cancer susceptibility genes. Known breast cancer susceptibility genes PALB2, CHEK2 and ATM were the only genes to retain statistical significance after correcting for multiple testing. Due to the enrichment of hereditary cases in the series, we had good power (>80%) to detect a gene of BRCA1-like risk (odds ratio = 10.6) down to a population minor allele frequency of 4.6 x 10-5 (1 in 10,799, less than one tenth that of BRCA1)and of PALB2-like risk (odds ratio = 5.0) down to a population minor allele frequency of 2.8 x 10-4 (1 in 1,779, less than half that of PALB2). Power was lower for identification of novel moderate penetrance genes (odds ratio = 2-3) like CHEK2 and ATM. CONCLUSIONS This is the largest case-control whole-exome analysis of enriched breast cancer published to date. Whilst additional breast cancer susceptibility genes likely exist, those of high penetrance are likely to be of very low mutational frequency. Contention exists regarding the clinical utility of such genes.
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Affiliation(s)
- C Loveday
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - A Garrett
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - P Law
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - S Hanks
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - E Poyastro-Pearson
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - J W Adlard
- Yorkshire Regional Genetics Service, St James's University Hospital, Leeds, UK
| | - J Barwell
- Leicestershire Genetics Centre, University Hospitals of Leicester National Health Service (NHS) Trust, Leicester, UK
| | - J Berg
- Division of Medical Sciences, Human Genetics, University of Dundee, Dundee, UK
| | - A F Brady
- North West Thames Regional Genetics Service, Kennedy Galton Centre, London, UK
| | - C Brewer
- Peninsula Regional Genetics Service, Royal Devon & Exeter Hospital, Exeter, UK
| | - C Chapman
- West Midlands Regional Genetics Service, Birmingham Women's Hospital, Birmingham, UK
| | - J Cook
- Sheffield Regional Genetics Service, Sheffield Children's NHS Foundation Trust, Sheffield, UK
| | - R Davidson
- West of Scotland Regional Genetics Service, Ferguson Smith Centre for Clinical Genetics, Glasgow, UK
| | - A Donaldson
- South Western Regional Genetics Service, University Hospitals of Bristol NHS Foundation Trust, Bristol, UK
| | - F Douglas
- Northern Genetics Service, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - L Greenhalgh
- Cheshire and Merseyside Clinical Genetics Service, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
| | - A Henderson
- Northern Genetics Service (Cumbria), Newcastle upon Tyne Hospitals NHS Trust, Newcastle upon Tyne, UK
| | - L Izatt
- South East Thames Regional Genetics Service, Guy's and St. Thomas NHS Foundation Trust, London, UK
| | - A Kumar
- North East Thames Regional Genetics Service, Great Ormond St. Hospital, London, UK
| | - F Lalloo
- University Department of Medical Genetics & Regional Genetics Service, St. Mary's Hospital, Manchester, UK
| | - Z Miedzybrodzka
- University of Aberdeen and North of Scotland Clinical Genetics Service, Aberdeen Royal Infirmary, Aberdeen, UK
| | - P J Morrison
- Belfast Health and Social Care (HSC) Trust & Department of Medical Genetics, Northern Ireland Regional Genetics Service, Queen's University Belfast, Belfast, UK
| | - J Paterson
- East Anglian Regional Genetics Service, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - M Porteous
- South East of Scotland Clinical Genetics Service, Western General Hospital, Edinburgh, UK
| | - M T Rogers
- All Wales Medical Genetics Service, University Hospital of Wales, Cardiff, UK
| | - L Walker
- Oxford Regional Genetics Service, Oxford Radcliffe Hospitals NHS Trust, Oxford, UK
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- Individual collaborators and their affiliations are listed in the Appendix
| | - D Eccles
- Faculty of Medicine, University of Southampton, Southampton University Hospitals NHS Trust, Southampton, UK
| | - D G Evans
- University Department of Medical Genetics & Regional Genetics Service, St. Mary's Hospital, Manchester, UK
| | - K Snape
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK.; South West Thames Regional Genetics Service, St. George's Hospital, London, UK
| | - H Hanson
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK.; South West Thames Regional Genetics Service, St. George's Hospital, London, UK
| | - R S Houlston
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - C Turnbull
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK.; Royal Marsden NHS Foundation Hospital, London, UK.
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10
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McClurg DP, Urquhart G, McGoldrick T, Chatterji S, Miedzybrodzka Z, Speirs V, Elsberger B. Analysis of the Clinical Advancements for BRCA-Related Malignancies Highlights the Lack of Treatment Evidence for BRCA-Positive Male Breast Cancer. Cancers (Basel) 2022; 14:3175. [PMID: 35804947 PMCID: PMC9264767 DOI: 10.3390/cancers14133175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/24/2022] [Accepted: 06/24/2022] [Indexed: 12/10/2022] Open
Abstract
Male breast cancer (MBC) is a rare disease that accounts for less than 1% of all breast cancers and male malignancies. Despite recognised clinico-pathological and molecular differences to female breast cancer (FBC), the clinical management of MBC follows established FBC treatment strategies. Loss of function mutations in the DNA damage response genes BRCA1 and BRCA2, have been strongly implicated in the pathogenesis of MBC. While there have been extensive clinical advancements in other BRCA-related malignancies, including FBC, improvements in MBC remain stagnant. Here we present a review that highlights the lack of treatment evidence for BRCA-related MBC and the required national and global collaborative effort to address this unmet need. In doing so, we summarise the transformative clinical advancements with poly(ADP-ribose) polymerase (PARP) inhibitors in other BRCA-related cancers namely, FBC and prostate cancer.
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Affiliation(s)
- Dylan P. McClurg
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK; (D.P.M.); (S.C.); (Z.M.)
| | - Gordan Urquhart
- Aberdeen Royal Infirmary, Department of Oncology, Foresterhill Road, Aberdeen AB25 2ZN, UK; (G.U.); (T.M.)
| | - Trevor McGoldrick
- Aberdeen Royal Infirmary, Department of Oncology, Foresterhill Road, Aberdeen AB25 2ZN, UK; (G.U.); (T.M.)
| | - Subarnarekha Chatterji
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK; (D.P.M.); (S.C.); (Z.M.)
| | - Zosia Miedzybrodzka
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK; (D.P.M.); (S.C.); (Z.M.)
| | - Valerie Speirs
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK; (D.P.M.); (S.C.); (Z.M.)
| | - Beatrix Elsberger
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, UK; (D.P.M.); (S.C.); (Z.M.)
- Aberdeen Royal Infirmary, Breast Unit, Foresterhill Road, Aberdeen AB25 2ZN, UK
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11
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Tobias AP, Berg J, Cetnarskyj R, Miedzybrodzka Z, Porteous ME, Tobias ES. Creation and Worldwide Utilisation of New COVID-19 Online Information Hub for Genetics Health Professionals, Patients and Families. Front Genet 2021; 12:621683. [PMID: 34305996 PMCID: PMC8296805 DOI: 10.3389/fgene.2021.621683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 06/09/2021] [Indexed: 11/21/2022] Open
Abstract
The current COVID-19 pandemic has unfortunately resulted in many significant concerns for individuals with genetic disorders and their relatives, regarding the viral infection and, particularly, its specific implications and additional advisable precautions for individuals affected by genetic disorders. To address this, the resulting requirement for guidance and information for the public and for genetics professionals was discussed among colleagues nationally, on the ScotGEN Steering Committee, and internationally on the Education Committee of the European Society of Human Genetics (ESHG). It was agreed that the creation of an online hub of genetics-related COVID-19 information resources would be particularly helpful. The proposed content, divided into a web page for professionals and a page for patients, was discussed with, and approved by, genetics professionals. The hub was created and provided online at www.scotgen.org.uk and linked from the ESHG’s educational website for genetics and genomics, at www.eurogems.org. The new hub provides links, summary information and representative illustrations for a wide range of selected international resources. The resources for professionals include: COVID-19 research related hubs provided by Nature, Science, Frontiers, and PubMed; clinical guidelines; the European Centre for Disease Prevention and Control; the World Health Organisation; and molecular data sources including coronavirus 3D protein structures. The resources for patients and families include links to many accessible sources of support and relevant information. Since the launch of the pages, the website has received visits from over 50 countries worldwide. Several genetics consultants have commented on usefulness, clarity, readability, and ease of navigation. Visits have originated most frequently in the United Kingdom, Kuwait, Hong Kong, Moldova, United States, Philippines, France, and Qatar. More links have been added since the launch of the hub to include additional international public health and academic resources. In conclusion, an up-to-date online hub has been created and made freely available for healthcare professionals, patients, relatives and the public, providing categorised easily navigated links to a range of worldwide resources related to COVID-19. These pages are receiving a rapidly growing number of return visits and the authors continue to maintain and update the pages’ content, incorporating new developments in this field of enormous worldwide importance.
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Affiliation(s)
- Adam P Tobias
- Edinburgh Medical School, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Jonathan Berg
- Department of Clinical Genetics, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom.,Scottish Genetics Education Network, University of Dundee, Kirkcaldy, United Kingdom
| | - Roseanne Cetnarskyj
- Scottish Genetics Education Network, University of Dundee, Kirkcaldy, United Kingdom.,School of Health Sciences, University of Dundee, Kirkcaldy, United Kingdom
| | - Zosia Miedzybrodzka
- Scottish Genetics Education Network, University of Dundee, Kirkcaldy, United Kingdom.,Medical Genetics Group, University of Aberdeen, Aberdeen, United Kingdom
| | - Mary E Porteous
- Scottish Genetics Education Network, University of Dundee, Kirkcaldy, United Kingdom.,South East Scotland Genetic Service, Western General Hospital, Edinburgh, United Kingdom
| | - Edward S Tobias
- Scottish Genetics Education Network, University of Dundee, Kirkcaldy, United Kingdom.,Academic Unit of Medical Genetics and Clinical Pathology, Queen Elizabeth University Hospital, University of Glasgow, Glasgow, United Kingdom.,School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom.,West of Scotland Centre for Genomic Medicine, Queen Elizabeth University Hospital, NHS Greater Glasgow and Clyde, Glasgow, United Kingdom
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Corso S, Pietrantonio F, Apicella M, Migliore C, Conticelli D, Petrelli A, D'Errico L, Durando S, Moya-Rull D, Bellomo SE, Ughetto S, Degiuli M, Reddavid R, Fumagalli U, De Pascale S, Sgroi G, Rausa E, Baiocchi GL, Molfino S, De Manzoni G, Bencivenga M, Siena S, Sartore-Bianchi A, Morano F, Corallo S, Prisciandaro M, Di Bartolomeo M, Gloghini A, Marsoni S, Sottile A, Sapino A, Marchiò C, Dahle-Smith A, Miedzybrodzka Z, Lee J, Ali SM, Ross JS, Alexander BM, Miller VA, Petty R, Schrock AB, Giordano S. Optimized EGFR Blockade Strategies in EGFR Addicted Gastroesophageal Adenocarcinomas. Clin Cancer Res 2021; 27:3126-3140. [PMID: 33542076 DOI: 10.1158/1078-0432.ccr-20-0121] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 12/04/2020] [Accepted: 02/01/2021] [Indexed: 11/16/2022]
Abstract
PURPOSE Gastric and gastroesophageal adenocarcinomas represent the third leading cause of cancer mortality worldwide. Despite significant therapeutic improvement, the outcome of patients with advanced gastroesophageal adenocarcinoma is poor. Randomized clinical trials failed to show a significant survival benefit in molecularly unselected patients with advanced gastroesophageal adenocarcinoma treated with anti-EGFR agents. EXPERIMENTAL DESIGN We performed analyses on four cohorts: IRCC (570 patients), Foundation Medicine, Inc. (9,397 patients), COG (214 patients), and the Fondazione IRCCS Istituto Nazionale dei Tumori (206 patients). Preclinical trials were conducted in patient-derived xenografts (PDX). RESULTS The analysis of different gastroesophageal adenocarcinoma patient cohorts suggests that EGFR amplification drives aggressive behavior and poor prognosis. We also observed that EGFR inhibitors are active in patients with EGFR copy-number gain and that coamplification of other receptor tyrosine kinases or KRAS is associated with worse response. Preclinical trials performed on EGFR-amplified gastroesophageal adenocarcinoma PDX models revealed that the combination of an EGFR mAb and an EGFR tyrosine kinase inhibitor (TKI) was more effective than each monotherapy and resulted in a deeper and durable response. In a highly EGFR-amplified nonresponding PDX, where resistance to EGFR drugs was due to inactivation of the TSC2 tumor suppressor, cotreatment with the mTOR inhibitor everolimus restored sensitivity to EGFR inhibition. CONCLUSIONS This study underscores EGFR as a potential therapeutic target in gastric cancer and identifies the combination of an EGFR TKI and a mAb as an effective therapeutic approach. Finally, it recognizes mTOR pathway activation as a novel mechanism of primary resistance that can be overcome by the combination of EGFR and mTOR inhibitors.See related commentary by Openshaw et al., p. 2964.
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Affiliation(s)
- Simona Corso
- Department of Oncology, University of Torino, Candiolo, Torino, Italy.
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Filippo Pietrantonio
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Maria Apicella
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Cristina Migliore
- Department of Oncology, University of Torino, Candiolo, Torino, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Daniela Conticelli
- Department of Oncology, University of Torino, Candiolo, Torino, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | | | - Laura D'Errico
- Department of Oncology, University of Torino, Candiolo, Torino, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | | | | | - Sara E Bellomo
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Stefano Ughetto
- Department of Oncology, University of Torino, Candiolo, Torino, Italy
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | - Maurizio Degiuli
- Department of Oncology, University of Torino, Orbassano, Torino, Italy
| | - Rossella Reddavid
- Department of Oncology, University of Torino, Orbassano, Torino, Italy
| | | | | | - Giovanni Sgroi
- Surgical Oncology Unit, Department of Surgical Science, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
| | - Emanuele Rausa
- Surgical Oncology Unit, Department of Surgical Science, ASST Bergamo Ovest, Treviglio, Bergamo, Italy
| | - Gian Luca Baiocchi
- Department of Clinical and Experimental Sciences, Surgical Clinic, University of Brescia, Brescia, Italy
| | - Sarah Molfino
- Department of Clinical and Experimental Sciences, Surgical Clinic, University of Brescia, Brescia, Italy
| | - Giovanni De Manzoni
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Section of Surgery, University of Verona, Verona, Italy
| | - Maria Bencivenga
- Department of Surgical Sciences, Dentistry, Gynecology and Pediatrics, Section of Surgery, University of Verona, Verona, Italy
| | - Salvatore Siena
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Andrea Sartore-Bianchi
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- Niguarda Cancer Center, Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Federica Morano
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Salvatore Corallo
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Michele Prisciandaro
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Maria Di Bartolomeo
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Annunziata Gloghini
- Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Silvia Marsoni
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
| | | | - Anna Sapino
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Caterina Marchiò
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
- Department of Medical Sciences, University of Torino, Torino, Italy
| | - Asa Dahle-Smith
- Tayside Cancer Centre, Ninewells Hospital, Dundee, Scotland, United Kingdom
| | | | - Jessica Lee
- Foundation Medicine, Inc., Cambridge, Massachusetts
| | - Siraj M Ali
- Foundation Medicine, Inc., Cambridge, Massachusetts
| | - Jeffrey S Ross
- Foundation Medicine, Inc., Cambridge, Massachusetts
- Department of Pathology, Upstate Medical University, Syracuse, New York
| | | | | | - Russell Petty
- Division of Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, Scotland, United Kingdom
| | | | - Silvia Giordano
- Department of Oncology, University of Torino, Candiolo, Torino, Italy.
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Torino, Italy
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Newmark J, Bell C, O'Sullivan D, Wierzbicki A, Soran H, Simpson W, Miedzybrodzka Z. Familial chylomicronaemia syndrome: National genetics testing results from the United Kingdom. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Perrott S, Laurie K, Laws K, Johnes A, Miedzybrodzka Z, Samuel L. Young-onset colorectal cancer in the North East of Scotland: survival, clinico-pathological features and genetics. BMC Cancer 2020; 20:108. [PMID: 32041565 PMCID: PMC7011562 DOI: 10.1186/s12885-020-6606-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 02/04/2020] [Indexed: 01/13/2023] Open
Abstract
Background Colorectal cancer (CRC) in patients aged under 55 years is on the rise, constituting approximately 10% of cases. Our aim was to determine the survival and clinico-pathological details of young-onset CRC (yCRC), as well as audit the referral rate to genetic services and thus establish the incidence of inherited cancer syndromes. Methods A retrospective case note review was conducted for patients aged under 55 years who were diagnosed with CRC between 2005 and 2015 in the North East of Scotland. Cases were identified by pathology records and data was obtained from patient notes. Analysis was performed using SPSS version 25 (IBM, New York, USA) to produce Kaplan-Meier survival estimates, descriptive statistics and markers predictive for genetic referral. Results Data from 345 patients (age range 22–54 years) were identified. The one year, five year and overall survival rates were found to be 89, 63 and 55%, respectively. Most patients (61%) presented with advanced disease. Of 201 patients that met criteria for genetic referral, only 93 (46%) were referred to genetic services. Microsatellite instability (MSI) was identified in 14% of those referred. Conclusion Survival in yCRC was found to be better than that in later onset disease, despite higher rates of advanced disease. Patients were under-referred to genetic services, where a significant proportion were found to be MSI positive and investigated for Lynch syndrome.
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Affiliation(s)
- Sarah Perrott
- University of Aberdeen, School of Medicine, Medical Sciences, Nutrition and Dentistry, Aberdeen, Scotland.
| | | | - Kirsten Laws
- NHS Grampian, Department of Clinical Oncology at Aberdeen Royal Infirmary, Aberdeen, Scotland
| | - Annie Johnes
- NHS Grampian, Clinical Genetics Service, Aberdeen Royal Infirmary, Aberdeen, Scotland
| | - Zosia Miedzybrodzka
- University of Aberdeen, School of Medicine, Medical Sciences, Nutrition and Dentistry, Aberdeen, Scotland.,NHS Grampian, Clinical Genetics Service, Aberdeen Royal Infirmary, Aberdeen, Scotland
| | - Leslie Samuel
- NHS Grampian, Department of Clinical Oncology at Aberdeen Royal Infirmary, Aberdeen, Scotland
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Keenan KF, McKee L, Miedzybrodzka Z. Genetics professionals’ experiences of facilitating parent/child communication through the genetic clinic. J Genet Couns 2019; 29:44-55. [DOI: 10.1002/jgc4.1179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 09/25/2019] [Accepted: 09/25/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Karen F. Keenan
- Medical Genetics Group University of Aberdeen Aberdeen UK
- Epidemiology Group University of Aberdeen Aberdeen UK
| | - Lorna McKee
- Health Services Research Unit University of Aberdeen Aberdeen UK
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Quarrell OW, Delatycki MB, Clarke AJ, Lahiri N, Craufurd D, Miedzybrodzka Z, MacLeod R, Renwick P, Tomlinson C. Letter in Response to Tibben et al., Risk Assessment for Huntington's Disease for (Future) Offspring Requires Offering Preconceptional CAG Analysis to Both Partners. J Huntingtons Dis 2019; 8:357-359. [PMID: 31282428 DOI: 10.3233/jhd-190360] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Oliver W Quarrell
- Department of Clinical Genetics, Sheffield Children's NHS Trust, OPD II Northern General Hospital, Sheffield, UK
| | - Martin B Delatycki
- Victorian Clinical Genetic Services, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville VIC, Australia
| | - Angus J Clarke
- Institute of Cancer and Genetics, University of Cardiff, Cardiff, UK
| | - Nayana Lahiri
- Clinical Genetics Department, St George's University of London, London, UK and St George's University Hospitals NHS Foundation Trust, London, UK
| | - David Craufurd
- Manchester Centre for Genomic Medicine, Division of Evolution and Genomics Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK. and St. Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Zosia Miedzybrodzka
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK.,North of Scotland Regional Genetics Service, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Rhona MacLeod
- Manchester Centre for Genomic Medicine, Division of Evolution and Genomics Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK. and St. Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Pamela Renwick
- Center for Preimplantation Genetic Diagnosis, Guy's and St Thomas' NHS Foundation Trust, Great Maze Pond, London, UK
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Gorman KM, Meyer E, Grozeva D, Spinelli E, McTague A, Sanchis-Juan A, Carss KJ, Bryant E, Reich A, Schneider AL, Pressler RM, Simpson MA, Debelle GD, Wassmer E, Morton J, Sieciechowicz D, Jan-Kamsteeg E, Paciorkowski AR, King MD, Cross JH, Poduri A, Mefford HC, Scheffer IE, Haack TB, McCullagh G, Millichap JJ, Carvill GL, Clayton-Smith J, Maher ER, Raymond FL, Kurian MA, McRae JF, Clayton S, Fitzgerald TW, Kaplanis J, Prigmore E, Rajan D, Sifrim A, Aitken S, Akawi N, Alvi M, Ambridge K, Barrett DM, Bayzetinova T, Jones P, Jones WD, King D, Krishnappa N, Mason LE, Singh T, Tivey AR, Ahmed M, Anjum U, Archer H, Armstrong R, Awada J, Balasubramanian M, Banka S, Baralle D, Barnicoat A, Batstone P, Baty D, Bennett C, Berg J, Bernhard B, Bevan AP, Bitner-Glindzicz M, Blair E, Blyth M, Bohanna D, Bourdon L, Bourn D, Bradley L, Brady A, Brent S, Brewer C, Brunstrom K, Bunyan DJ, Burn J, Canham N, Castle B, Chandler K, Chatzimichali E, Cilliers D, Clarke A, Clasper S, Clayton-Smith J, Clowes V, Coates A, Cole T, Colgiu I, Collins A, Collinson MN, Connell F, Cooper N, Cox H, Cresswell L, Cross G, Crow Y, D’Alessandro M, Dabir T, Davidson R, Davies S, de Vries D, Dean J, Deshpande C, Devlin G, Dixit A, Dobbie A, Donaldson A, Donnai D, Donnelly D, Donnelly C, Douglas A, Douzgou S, Duncan A, Eason J, Ellard S, Ellis I, Elmslie F, Evans K, Everest S, Fendick T, Fisher R, Flinter F, Foulds N, Fry A, Fryer A, Gardiner C, Gaunt L, Ghali N, Gibbons R, Gill H, Goodship J, Goudie D, Gray E, Green A, Greene P, Greenhalgh L, Gribble S, Harrison R, Harrison L, Harrison V, Hawkins R, He L, Hellens S, Henderson A, Hewitt S, Hildyard L, Hobson E, Holden S, Holder M, Holder S, Hollingsworth G, Homfray T, Humphreys M, Hurst J, Hutton B, Ingram S, Irving M, Islam L, Jackson A, Jarvis J, Jenkins L, Johnson D, Jones E, Josifova D, Joss S, Kaemba B, Kazembe S, Kelsell R, Kerr B, Kingston H, Kini U, Kinning E, Kirby G, Kirk C, Kivuva E, Kraus A, Kumar D, Kumar VKA, Lachlan K, Lam W, Lampe A, Langman C, Lees M, Lim D, Longman C, Lowther G, Lynch SA, Magee A, Maher E, Male A, Mansour S, Marks K, Martin K, Maye U, McCann E, McConnell V, McEntagart M, McGowan R, McKay K, McKee S, McMullan DJ, McNerlan S, McWilliam C, Mehta S, Metcalfe K, Middleton A, Miedzybrodzka Z, Miles E, Mohammed S, Montgomery T, Moore D, Morgan S, Morton J, Mugalaasi H, Murday V, Murphy H, Naik S, Nemeth A, Nevitt L, Newbury-Ecob R, Norman A, O’Shea R, Ogilvie C, Ong KR, Park SM, Parker MJ, Patel C, Paterson J, Payne S, Perrett D, Phipps J, Pilz DT, Pollard M, Pottinger C, Poulton J, Pratt N, Prescott K, Price S, Pridham A, Procter A, Purnell H, Quarrell O, Ragge N, Rahbari R, Randall J, Rankin J, Raymond L, Rice D, Robert L, Roberts E, Roberts J, Roberts P, Roberts G, Ross A, Rosser E, Saggar A, Samant S, Sampson J, Sandford R, Sarkar A, Schweiger S, Scott R, Scurr I, Selby A, Seller A, Sequeira C, Shannon N, Sharif S, Shaw-Smith C, Shearing E, Shears D, Sheridan E, Simonic I, Singzon R, Skitt Z, Smith A, Smith K, Smithson S, Sneddon L, Splitt M, Squires M, Stewart F, Stewart H, Straub V, Suri M, Sutton V, Swaminathan GJ, Sweeney E, Tatton-Brown K, Taylor C, Taylor R, Tein M, Temple IK, Thomson J, Tischkowitz M, Tomkins S, Torokwa A, Treacy B, Turner C, Turnpenny P, Tysoe C, Vandersteen A, Varghese V, Vasudevan P, Vijayarangakannan P, Vogt J, Wakeling E, Wallwark S, Waters J, Weber A, Wellesley D, Whiteford M, Widaa S, Wilcox S, Wilkinson E, Williams D, Williams N, Wilson L, Woods G, Wragg C, Wright M, Yates L, Yau M, Nellåker C, Parker M, Firth HV, Wright CF, FitzPatrick DR, Barrett JC, Hurles ME, Al Turki S, Anderson C, Anney R, Antony D, Artigas MS, Ayub M, Balasubramaniam S, Barrett JC, Barroso I, Beales P, Bentham J, Bhattacharya S, Birney E, Blackwood D, Bobrow M, Bochukova E, Bolton P, Bounds R, Boustred C, Breen G, Calissano M, Carss K, Chatterjee K, Chen L, Ciampi A, Cirak S, Clapham P, Clement G, Coates G, Collier D, Cosgrove C, Cox T, Craddock N, Crooks L, Curran S, Curtis D, Daly A, Day-Williams A, Day IN, Down T, Du Y, Dunham I, Edkins S, Ellis P, Evans D, Faroogi S, Fatemifar G, Fitzpatrick DR, Flicek P, Flyod J, Foley AR, Franklin CS, Futema M, Gallagher L, Geihs M, Geschwind D, Griffin H, Grozeva D, Guo X, Guo X, Gurling H, Hart D, Hendricks A, Holmans P, Howie B, Huang L, Hubbard T, Humphries SE, Hurles ME, Hysi P, Jackson DK, Jamshidi Y, Jing T, Joyce C, Kaye J, Keane T, Keogh J, Kemp J, Kennedy K, Kolb-Kokocinski A, Lachance G, Langford C, Lawson D, Lee I, Lek M, Liang J, Lin H, Li R, Li Y, Liu R, Lönnqvist J, Lopes M, Iotchkova V, MacArthur D, Marchini J, Maslen J, Massimo M, Mathieson I, Marenne G, McGuffin P, McIntosh A, McKechanie AG, McQuillin A, Metrustry S, Mitchison H, Moayyeri A, Morris J, Muntoni F, Northstone K, O'Donnovan M, Onoufriadis A, O'Rahilly S, Oualkacha K, Owen MJ, Palotie A, Panoutsopoulou K, Parker V, Parr JR, Paternoster L, Paunio T, Payne F, Pietilainen O, Plagnol V, Quaye L, Quail MA, Raymond L, Rehnström K, Ring S, Ritchie GR, Roberts N, Savage DB, Scambler P, Schiffels S, Schmidts M, Schoenmakers N, Semple RK, Serra E, Sharp SI, Shin SY, Skuse D, Small K, Southam L, Spasic-Boskovic O, St Clair D, Stalker J, Stevens E, St Pourcian B, Sun J, Suvisaari J, Tachmazidou I, Tobin MD, Valdes A, Van Kogelenberg M, Vijayarangakannan P, Visscher PM, Wain LV, Walters JT, Wang G, Wang J, Wang Y, Ward K, Wheeler E, Whyte T, Williams H, Williamson KA, Wilson C, Wong K, Xu C, Yang J, Zhang F, Zhang P, Aitman T, Alachkar H, Ali S, Allen L, Allsup D, Ambegaonkar G, Anderson J, Antrobus R, Armstrong R, Arno G, Arumugakani G, Ashford S, Astle W, Attwood A, Austin S, Bacchelli C, Bakchoul T, Bariana TK, Baxendale H, Bennett D, Bethune C, Bibi S, Bitner-Glindzicz M, Bleda M, Boggard H, Bolton-Maggs P, Booth C, Bradley JR, Brady A, Brown M, Browning M, Bryson C, Burns S, Calleja P, Canham N, Carmichael J, Carss K, Caulfield M, Chalmers E, Chandra A, Chinnery P, Chitre M, Church C, Clement E, Clements-Brod N, Clowes V, Coghlan G, Collins P, Cooper N, Creaser-Myers A, DaCosta R, Daugherty L, Davies S, Davis J, De Vries M, Deegan P, Deevi SV, Deshpande C, Devlin L, Dewhurst E, Doffinger R, Dormand N, Drewe E, Edgar D, Egner W, Erber WN, Erwood M, Everington T, Favier R, Firth H, Fletcher D, Flinter F, Fox JC, Frary A, Freson K, Furie B, Furnell A, Gale D, Gardham A, Gattens M, Ghali N, Ghataorhe PK, Ghurye R, Gibbs S, Gilmour K, Gissen P, Goddard S, Gomez K, Gordins P, Gräf S, Greene D, Greenhalgh A, Greinacher A, Grigoriadou S, Grozeva D, Hackett S, Hadinnapola C, Hague R, Haimel M, Halmagyi C, Hammerton T, Hart D, Hayman G, Heemskerk JW, Henderson R, Hensiek A, Henskens Y, Herwadkar A, Holden S, Holder M, Holder S, Hu F, Huissoon A, Humbert M, Hurst J, James R, Jolles S, Josifova D, Kazmi R, Keeling D, Kelleher P, Kelly AM, Kennedy F, Kiely D, Kingston N, Koziell A, Krishnakumar D, Kuijpers TW, Kumararatne D, Kurian M, Laffan MA, Lambert MP, Allen HL, Lawrie A, Lear S, Lees M, Lentaigne C, Liesner R, Linger R, Longhurst H, Lorenzo L, Machado R, Mackenzie R, MacLaren R, Maher E, Maimaris J, Mangles S, Manson A, Mapeta R, Markus HS, Martin J, Masati L, Mathias M, Matser V, Maw A, McDermott E, McJannet C, Meacham S, Meehan S, Megy K, Mehta S, Michaelides M, Millar CM, Moledina S, Moore A, Morrell N, Mumford A, Murng S, Murphy E, Nejentsev S, Noorani S, Nurden P, Oksenhendler E, Ouwehand WH, Papadia S, Park SM, Parker A, Pasi J, Patch C, Paterson J, Payne J, Peacock A, Peerlinck K, Penkett CJ, Pepke-Zaba J, Perry DJ, Pollock V, Polwarth G, Ponsford M, Qasim W, Quinti I, Rankin S, Rankin J, Raymond FL, Rehnstrom K, Reid E, Rhodes CJ, Richards M, Richardson S, Richter A, Roberts I, Rondina M, Rosser E, Roughley C, Rue-Albrecht K, Samarghitean C, Sanchis-Juan A, Sandford R, Santra S, Sargur R, Savic S, Schulman S, Schulze H, Scott R, Scully M, Seneviratne S, Sewell C, Shamardina O, Shipley D, Simeoni I, Sivapalaratnam S, Smith K, Sohal A, Southgate L, Staines S, Staples E, Stauss H, Stein P, Stephens J, Stirrups K, Stock S, Suntharalingam J, Tait RC, Talks K, Tan Y, Thachil J, Thaventhiran J, Thomas E, Thomas M, Thompson D, Thrasher A, Tischkowitz M, Titterton C, Toh CH, Toshner M, Treacy C, Trembath R, Tuna S, Turek W, Turro E, Van Geet C, Veltman M, Vogt J, von Ziegenweldt J, Vonk Noordegraaf A, Wakeling E, Wanjiku I, Warner TQ, Wassmer E, Watkins H, Webster A, Welch S, Westbury S, Wharton J, Whitehorn D, Wilkins M, Willcocks L, Williamson C, Woods G, Wort J, Yeatman N, Yong P, Young T, Yu P. Bi-allelic Loss-of-Function CACNA1B Mutations in Progressive Epilepsy-Dyskinesia. Am J Hum Genet 2019; 104:948-956. [PMID: 30982612 DOI: 10.1016/j.ajhg.2019.03.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 03/04/2019] [Indexed: 12/11/2022] Open
Abstract
The occurrence of non-epileptic hyperkinetic movements in the context of developmental epileptic encephalopathies is an increasingly recognized phenomenon. Identification of causative mutations provides an important insight into common pathogenic mechanisms that cause both seizures and abnormal motor control. We report bi-allelic loss-of-function CACNA1B variants in six children from three unrelated families whose affected members present with a complex and progressive neurological syndrome. All affected individuals presented with epileptic encephalopathy, severe neurodevelopmental delay (often with regression), and a hyperkinetic movement disorder. Additional neurological features included postnatal microcephaly and hypotonia. Five children died in childhood or adolescence (mean age of death: 9 years), mainly as a result of secondary respiratory complications. CACNA1B encodes the pore-forming subunit of the pre-synaptic neuronal voltage-gated calcium channel Cav2.2/N-type, crucial for SNARE-mediated neurotransmission, particularly in the early postnatal period. Bi-allelic loss-of-function variants in CACNA1B are predicted to cause disruption of Ca2+ influx, leading to impaired synaptic neurotransmission. The resultant effect on neuronal function is likely to be important in the development of involuntary movements and epilepsy. Overall, our findings provide further evidence for the key role of Cav2.2 in normal human neurodevelopment.
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Wadrup F, Holden S, MacLeod R, Miedzybrodzka Z, Németh AH, Owens S, Pasalodos S, Quarrell O, Clarke AJ. A case-note review of continued pregnancies found to be at a high risk of Huntington's disease: considerations for clinical practice. Eur J Hum Genet 2019; 27:1215-1224. [PMID: 30890781 DOI: 10.1038/s41431-019-0375-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 12/17/2018] [Accepted: 02/02/2019] [Indexed: 11/09/2022] Open
Abstract
Huntington's disease (HD) is a severe neurodegenerative condition that impacts the whole family. Prenatal diagnosis by direct or exclusion testing is available for couples at risk of transmitting HD to their children. An ethical problem can arise after prenatal diagnosis for HD if a known 'high risk' pregnancy is continued to term: international guidelines emphasise that this situation should be avoided where possible, as it removes the resulting child's future right to make an informed, autonomous decision about predictive testing. The UK Huntington's Disease Predictive Testing Consortium recorded 21 pregnancies that were tested, identified as high-risk and then continued. In this qualitative study, health professionals reviewed the case notes of 15 of these pregnancies. This analysis generated guidelines for clinical practice. It is recommended that practitioners: (i) remind couples of the long-term consequences of continuing a high risk pregnancy, (ii) ensure couples understand the information provided, (iii) collaborate closely with other professionals involved in the couple's prenatal care, (iv) prepare couples for the procedural aspects of prenatal diagnosis and a possible termination of pregnancy, (v) allow time for in-depth pre-test counselling, (vi) explain the rationale for only making prenatal diagnosis available subject to conditions, whilst allowing for human ambivalence and acknowledging that these 'conditions' cannot be enforced, (vii) monitor the whole clinical process to ensure that it works 'smoothly', (viii) recommend couples do not disclose the result of the prenatal test to protect the confidentiality and autonomy of the future 'high-risk' child, and (ix) offer on-going contact and support.
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Affiliation(s)
- Felicity Wadrup
- East Anglian Medical Genetics Service, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Simon Holden
- East Anglian Medical Genetics Service, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.,Academic Department of Medical Genetics, Addenbrooke's Treatment Centre, Cambridge Biomedical Campus, Cambridge, UK
| | - Rhona MacLeod
- Division of Evolution and Genomic Sciences, School of Biological Science, University of Manchester, Manchester, UK.,Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Zosia Miedzybrodzka
- University of Aberdeen College of Life Sciences and Medicine, Division of Applied Medicine, Aberdeen, UK.,NHS Grampian Clinical Genetics Service, Medical Genetics, Aberdeen, UK
| | - Andrea H Németh
- Oxford Centre for Genomic Medicine, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Shan Owens
- Hywel Dda UHB (Milford Haven Health Care Centre, Yorke St, Milford Haven, Pembrokeshire, Wales, UK.,All Wales Medical Genetics Service, University Hospital of Wales, Cardiff, UK
| | - Sara Pasalodos
- Genomic Medicine Unit, Navarrabiomed, Biomedical Research Centre, Pamplona, Spain
| | - Oliver Quarrell
- Department of Clinical Genetics, Sheffield Children's Hospital, OPD II Northern General Hospital, Herries Road, Sheffield, UK
| | - Angus J Clarke
- Institute of Medical Genetics, University Hospital of Wales, Cardiff, UK.
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19
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Logan CV, Murray JE, Parry DA, Robertson A, Bellelli R, Tarnauskaitė Ž, Challis R, Cleal L, Borel V, Fluteau A, Santoyo-Lopez J, Aitman T, Barroso I, Basel D, Bicknell LS, Goel H, Hu H, Huff C, Hutchison M, Joyce C, Knox R, Lacroix AE, Langlois S, McCandless S, McCarrier J, Metcalfe KA, Morrissey R, Murphy N, Netchine I, O’Connell SM, Olney AH, Paria N, Rosenfeld JA, Sherlock M, Syverson E, White PC, Wise C, Yu Y, Zacharin M, Banerjee I, Reijns M, Bober MB, Semple RK, Boulton SJ, Rios JJ, Jackson AP, Aitman TJ, Biankin AV, Cooke SL, Humphrey WI, Martin S, Mennie L, Meynert A, Miedzybrodzka Z, Murphy F, Nourse C, Santoyo-Lopez J, Semple CA, Williams N. DNA Polymerase Epsilon Deficiency Causes IMAGe Syndrome with Variable Immunodeficiency. Am J Hum Genet 2018; 103:1038-1044. [PMID: 30503519 PMCID: PMC6288413 DOI: 10.1016/j.ajhg.2018.10.024] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/26/2018] [Indexed: 01/19/2023] Open
Abstract
During genome replication, polymerase epsilon (Pol ε) acts as the major leading-strand DNA polymerase. Here we report the identification of biallelic mutations in POLE, encoding the Pol ε catalytic subunit POLE1, in 15 individuals from 12 families. Phenotypically, these individuals had clinical features closely resembling IMAGe syndrome (intrauterine growth restriction [IUGR], metaphyseal dysplasia, adrenal hypoplasia congenita, and genitourinary anomalies in males), a disorder previously associated with gain-of-function mutations in CDKN1C. POLE1-deficient individuals also exhibited distinctive facial features and variable immune dysfunction with evidence of lymphocyte deficiency. All subjects shared the same intronic variant (c.1686+32C>G) as part of a common haplotype, in combination with different loss-of-function variants in trans. The intronic variant alters splicing, and together the biallelic mutations lead to cellular deficiency of Pol ε and delayed S-phase progression. In summary, we establish POLE as a second gene in which mutations cause IMAGe syndrome. These findings add to a growing list of disorders due to mutations in DNA replication genes that manifest growth restriction alongside adrenal dysfunction and/or immunodeficiency, consolidating these as replisome phenotypes and highlighting a need for future studies to understand the tissue-specific development roles of the encoded proteins.
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20
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Rust K, Spiliopoulou P, Tang CY, Bell C, Stirling D, Phang T, Davidson R, Mackean M, Nussey F, Glasspool RM, Reed NS, Sadozye A, Porteous M, McGoldrick T, Ferguson M, Miedzybrodzka Z, McNeish IA, Gourley C. Routine germline BRCA1 and BRCA2 testing in patients with ovarian carcinoma: analysis of the Scottish real-life experience. BJOG 2018; 125:1451-1458. [PMID: 29460478 DOI: 10.1111/1471-0528.15171] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To determine the rates of germline BRCA1 and BRCA2 mutations in Scottish patients with ovarian cancer, before and after a change in testing policy. DESIGN Retrospective cohort study. SETTING Four cancer/genetics centres in Scotland. POPULATION Patients with ovarian cancer undergoing germline BRCA1 and BRCA2 (gBRCA1/2) sequencing before 2013 (under the 'old criteria', with selection based solely on family history), after 2013 (under the 'new criteria', with sequencing offered to newly presenting patients with non-mucinous ovarian cancer), and in the 'prevalent population' (who presented before 2013, but were not eligible for sequencing under the old criteria but were sequenced under the new criteria). METHODS Clinicopathological and sequence data were collected before and for 18 months after this change in selection criteria. MAIN OUTCOME MEASURES Frequency of germline BRCA1, BRCA2, RAD51C, and RAD51D mutations. RESULTS Of 599 patients sequenced, 205, 236, and 158 were in the 'old criteria', 'new criteria', and 'prevalent' populations, respectively. The frequency of gBRCA1/2 mutations was 30.7, 13.1, and 12.7%, respectively. The annual rate of gBRCA1/2 mutation detection was 4.2 before and 20.7 after the policy change. A total of 48% (15/31) 'new criteria' patients with gBRCA1/2 mutations had a Manchester score of <15 and would not have been offered sequencing based on family history criteria. In addition, 20 patients with gBRCA1/2 were identified in the prevalent population. The prevalence of gBRCA1/2 mutations in patients aged >70 years was 8.2%. CONCLUSIONS Sequencing all patients with non-mucinous ovarian cancer gives a much higher annual gBRCA1/2 mutation detection rate, with the frequency of positive tests still exceeding the 10% threshold upon which many family history-based models operate. TWEETABLE ABSTRACT BRCA sequencing all non-mucinous cancer patients increases mutation detection five fold.
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Affiliation(s)
- K Rust
- Edinburgh Cancer Centre, Edinburgh, UK
| | | | - C Y Tang
- Department of Oncology, Ninewells Hospital, Dundee, UK
| | - C Bell
- Department of Medical Genetics, NHS Grampian, Aberdeen, UK
| | - D Stirling
- Department of Clinical Genetics, Western General Hospital, Edinburgh, UK
| | - Thf Phang
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - R Davidson
- Department of Genetics, Queen Elizabeth University Hospital, Glasgow, UK
| | - M Mackean
- Edinburgh Cancer Centre, Edinburgh, UK
| | - F Nussey
- Edinburgh Cancer Centre, Edinburgh, UK
| | | | - N S Reed
- Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - A Sadozye
- Beatson West of Scotland Cancer Centre, Glasgow, UK
| | - M Porteous
- Department of Clinical Genetics, Western General Hospital, Edinburgh, UK
| | - T McGoldrick
- Department of Oncology, Aberdeen Royal Infirmary, Aberdeen, UK
| | - M Ferguson
- Department of Oncology, Ninewells Hospital, Dundee, UK
| | - Z Miedzybrodzka
- Department of Medical Genetics, NHS Grampian, Aberdeen, UK
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - I A McNeish
- Beatson West of Scotland Cancer Centre, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - C Gourley
- Edinburgh Cancer Centre, Edinburgh, UK
- Nicola Murray Centre for Ovarian Cancer Research, University of Edinburgh Cancer Research UK Centre, MRC IGMM, Western General Hospital, Edinburgh, UK
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21
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Keenan KF, Finnie RM, Simpson WG, McKee L, Dean J, Miedzybrodzka Z. Parents' views of genetic testing and treatment of familial hypercholesterolemia in children: a qualitative study. J Community Genet 2018; 10:129-141. [PMID: 29949065 PMCID: PMC6325044 DOI: 10.1007/s12687-018-0373-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 06/01/2018] [Indexed: 01/06/2023] Open
Abstract
Familial hypercholesterolemia (FH) is a serious inherited disorder, which greatly increases individuals’ risk of cardiovascular disease (CVD) in adult life. However, medical treatment and lifestyle adjustments can fully restore life expectancy. Whilst European guidance advises that where there is a known family mutation genetic testing is undertaken in early childhood, the majority of the at-risk population remain untested and undiagnosed. To date, only a small number of studies have explored parents’ and children’s experiences of testing and treatment for FH, and little is known about interactions between health professionals, parents, and children in clinic settings. In this study, in-depth interviews were undertaken with parents who had attended a genetics and/or lipid clinic for FH with their children (n = 17). A thematic analysis revealed four main themes: undertaking early prevention, postponing treatment, parental concerns, and the importance of the wider family context. The majority of parents supported genetic testing for FH in childhood. However, although some were very supportive of following early treatment recommendations, others expressed reluctance. Importantly, some parents were concerned that inappropriate information had been shared with their children and wished that more time had been given to discuss how, when, and what to tell in advance. Future research is needed to explore the long-term outcomes for children who undertake genetic testing and early treatment for FH and to trial interventions to improve the engagement, follow-up, and support of children who are at risk, or diagnosed, with this disorder.
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Affiliation(s)
- Karen Forrest Keenan
- Epidemiology Group, University of Aberdeen, First Floor Health Sciences Building, Foresterhill, Aberdeen, AB25 2ZD, UK. .,Medical Genetics Group, University of Aberdeen, Polwarth Building, Aberdeen, AB25 2ZD, UK.
| | - Robert M Finnie
- Department of Medicine/Care of the Elderly, St. Johns Hospital, Howdon Road West, Livingston, UK.,Department of Clinical Biochemistry, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - William G Simpson
- Department of Clinical Biochemistry, Aberdeen Royal Infirmary, Aberdeen, UK
| | - Lorna McKee
- Health Services Research Unit, University of Aberdeen, Third Floor Health Sciences Building, Foresterhill, Aberdeen, AB25 2ZD, UK
| | - John Dean
- Medical Genetics Group, University of Aberdeen, Polwarth Building, Aberdeen, AB25 2ZD, UK.,Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, UK
| | - Zosia Miedzybrodzka
- Medical Genetics Group, University of Aberdeen, Polwarth Building, Aberdeen, AB25 2ZD, UK.,Department of Medical Genetics, Ashgrove House, NHS Grampian, Aberdeen, UK
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22
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Kay C, Collins JA, Wright GEB, Baine F, Miedzybrodzka Z, Aminkeng F, Semaka AJ, McDonald C, Davidson M, Madore SJ, Gordon ES, Gerry NP, Cornejo-Olivas M, Squitieri F, Tishkoff S, Greenberg JL, Krause A, Hayden MR. The molecular epidemiology of Huntington disease is related to intermediate allele frequency and haplotype in the general population. Am J Med Genet B Neuropsychiatr Genet 2018; 177:346-357. [PMID: 29460498 DOI: 10.1002/ajmg.b.32618] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 12/21/2017] [Indexed: 01/31/2023]
Abstract
Huntington disease (HD) is the most common monogenic neurodegenerative disorder in populations of European ancestry, but occurs at lower prevalence in populations of East Asian or black African descent. New mutations for HD result from CAG repeat expansions of intermediate alleles (IAs), usually of paternal origin. The differing prevalence of HD may be related to the rate of new mutations in a population, but no comparative estimates of IA frequency or the HD new mutation rate are available. In this study, we characterize IA frequency and the CAG repeat distribution in fifteen populations of diverse ethnic origin. We estimate the HD new mutation rate in a series of populations using molecular IA expansion rates. The frequency of IAs was highest in Hispanic Americans and Northern Europeans, and lowest in black Africans and East Asians. The prevalence of HD correlated with the frequency of IAs by population and with the proportion of IAs found on the HD-associated A1 haplotype. The HD new mutation rate was estimated to be highest in populations with the highest frequency of IAs. In European ancestry populations, one in 5,372 individuals from the general population and 7.1% of individuals with an expanded CAG repeat in the HD range are estimated to have a molecular new mutation. Our data suggest that the new mutation rate for HD varies substantially between populations, and that IA frequency and haplotype are closely linked to observed epidemiological differences in the prevalence of HD across major ancestry groups in different countries.
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Affiliation(s)
- Chris Kay
- Centre for Molecular Medicine Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Jennifer A Collins
- Centre for Molecular Medicine Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Galen E B Wright
- Centre for Molecular Medicine Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Fiona Baine
- Division of Human Genetics, Department of Pathology, University of Cape Town, South Africa.,Division of Human Genetics, School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Zosia Miedzybrodzka
- Medical Genetics Group, School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK
| | - Folefac Aminkeng
- Centre for Molecular Medicine Therapeutics, University of British Columbia, Vancouver, BC, Canada.,Translational Laboratory in Genetic Medicine, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Alicia J Semaka
- Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada
| | - Cassandra McDonald
- Centre for Molecular Medicine Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Mark Davidson
- Medical Genetics Group, School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK
| | - Steven J Madore
- Molecular Biology Group, Coriell Institute for Medical Research, Camden, New Jersey
| | - Erynn S Gordon
- Molecular Biology Group, Coriell Institute for Medical Research, Camden, New Jersey
| | - Norman P Gerry
- Molecular Biology Group, Coriell Institute for Medical Research, Camden, New Jersey
| | - Mario Cornejo-Olivas
- Neurogenetics Research Center, Instituto Nacional de Ciencias Neurologicas, Lima, Peru
| | - Ferdinando Squitieri
- IRCCS Casa Sollievo della Sofferenza Hospital, Huntington and Rare Diseases Unit (CSS-Mendel Rome), San Giovanni Rotondo, Italy
| | - Sarah Tishkoff
- Department of Genetics, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jacquie L Greenberg
- Division of Human Genetics, Department of Pathology, University of Cape Town, South Africa
| | - Amanda Krause
- Division of Human Genetics, National Health Laboratory Service and School of Pathology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Michael R Hayden
- Centre for Molecular Medicine Therapeutics, University of British Columbia, Vancouver, BC, Canada
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23
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Collinson JM, Lindström NO, Neves C, Wallace K, Meharg C, Charles RH, Ross ZK, Fraser AM, Mbogo I, Oras K, Nakamoto M, Barker S, Duce S, Miedzybrodzka Z, Vargesson N. The developmental and genetic basis of 'clubfoot' in the peroneal muscular atrophy mutant mouse. Development 2018; 145:145/3/dev160093. [PMID: 29439133 DOI: 10.1242/dev.160093] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 12/28/2017] [Indexed: 12/19/2022]
Abstract
Genetic factors underlying the human limb abnormality congenital talipes equinovarus ('clubfoot') remain incompletely understood. The spontaneous autosomal recessive mouse 'peroneal muscular atrophy' mutant (PMA) is a faithful morphological model of human clubfoot. In PMA mice, the dorsal (peroneal) branches of the sciatic nerves are absent. In this study, the primary developmental defect was identified as a reduced growth of sciatic nerve lateral motor column (LMC) neurons leading to failure to project to dorsal (peroneal) lower limb muscle blocks. The pma mutation was mapped and a candidate gene encoding LIM-domain kinase 1 (Limk1) identified, which is upregulated in mutant lateral LMC motor neurons. Genetic and molecular analyses showed that the mutation acts in the EphA4-Limk1-Cfl1/cofilin-actin pathway to modulate growth cone extension/collapse. In the chicken, both experimental upregulation of Limk1 by electroporation and pharmacological inhibition of actin turnover led to defects in hindlimb spinal motor neuron growth and pathfinding, and mimicked the clubfoot phenotype. The data support a neuromuscular aetiology for clubfoot and provide a mechanistic framework to understand clubfoot in humans.
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Affiliation(s)
- J Martin Collinson
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Nils O Lindström
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Carlos Neves
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Karen Wallace
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Caroline Meharg
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Rebecca H Charles
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Zoe K Ross
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Amy M Fraser
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Ivan Mbogo
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Kadri Oras
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Masaru Nakamoto
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Simon Barker
- Royal Aberdeen Children's Hospital, Foresterhill, Aberdeen AB25 2ZN, UK
| | - Suzanne Duce
- School of Life Sciences, University of Dundee, Dundee DD1 5EH, UK
| | - Zosia Miedzybrodzka
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Neil Vargesson
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK
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24
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Anderson AS, Dunlop J, Gallant S, Macleod M, Miedzybrodzka Z, Mutrie N, O'Carroll RE, Stead M, Steele RJC, Taylor RS, Vinnicombe S, Berg J. Feasibility study to assess the impact of a lifestyle intervention ('LivingWELL') in people having an assessment of their family history of colorectal or breast cancer. BMJ Open 2018; 8:e019410. [PMID: 29391383 PMCID: PMC5879797 DOI: 10.1136/bmjopen-2017-019410] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVES To assess the feasibility of delivering and evaluating a weight management (WM) programme for overweight patients with a family history (FH) of breast cancer (BC) or colorectal cancer (CRC). STUDY DESIGN A two-arm (intervention vs usual care) randomised controlled trial. SETTING National Health Service (NHS) Tayside and NHS Grampian. PARTICIPANTS People with a FH of BC or CRC aged≥18 years and body mass index of ≥25 kg/m2 referred to NHS genetic services. INTERVENTION Participants were randomised to a control (lifestyle booklet) or 12-week intervention arm where they were given one face-to-face counselling session, four telephone consultations and web-based support. A goal of 5% reduction in body weight was set, and a personalised diet and physical activity (PA) programme was provided. Behavioural change techniques (motivational interviewing, action and coping plans and implementation intentions) were used. PRIMARY OUTCOME Feasibility measures: recruitment, programme implementation, fidelity measures, achieved measurements and retention, participant satisfaction assessed by questionnaire and qualitative interviews. SECONDARY OUTCOMES Measured changes in weight and PA and reported diet and psychosocial measures between baseline and 12-week follow-up. RESULTS Of 480 patients approached, 196 (41%) expressed interest in the study, and of those, 78 (40%) patients were randomised. Implementation of the programme was challenging within the time allotted and fidelity to the intervention modest (62%). Qualitative findings indicated the programme was well received. Questionnaires and anthropometric data were completed by >98%. Accelerometer data were attained by 84% and 54% at baseline and follow-up, respectively. Retention at 12 weeks was 76%. Overall, 36% of the intervention group (vs 0% in control) achieved 5% weight loss. Favourable increases in PA and reduction in dietary fat were also reported. CONCLUSIONS A lifestyle programme for people with a family history of cancer is feasible to conduct and acceptable to participants, and indicative results suggest favourable outcomes. TRIAL REGISTRATION NUMBER ISRCTN13123470; Pre-results.
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Affiliation(s)
- Annie S Anderson
- Centre for Research into Cancer Prevention and Screening / Tayside Cancer Centre, Division of Cancer Research, University of Dundee, Ninewells Hospital & Medical School, Dundee, UK
| | - Jacqueline Dunlop
- Department of Clinical Genetics, Ninewells Hospital and Medical School, Dundee, UK
| | - Stephanie Gallant
- Centre for Research into Cancer Prevention and Screening / Tayside Cancer Centre, Division of Cancer Research, University of Dundee, Ninewells Hospital & Medical School, Dundee, UK
| | - Maureen Macleod
- Centre for Research into Cancer Prevention and Screening / Tayside Cancer Centre, Division of Cancer Research, University of Dundee, Ninewells Hospital & Medical School, Dundee, UK
| | | | - Nanette Mutrie
- Physical Activity for Health Research Centre, Institute for Sport, Physical Education and Health Sciences, University of Edinburgh, Edinburgh, UK
| | - Ronan E O'Carroll
- Division of Psychology, School of Natural Sciences, University of Stirling, Stirling, UK
| | - Martine Stead
- Institute for Social Marketing, Institute for Social Marketing, University of Stirling, Stirling, UK
| | - Robert J C Steele
- Centre for Research into Cancer Prevention and Screening / Tayside Cancer Centre, Division of Cancer Research, University of Dundee, Ninewells Hospital & Medical School, Dundee, UK
| | - Rod S Taylor
- Institute of Health Research, University of Exeter Medical School, Exeter, UK
| | - Sarah Vinnicombe
- Centre for Research into Cancer Prevention and Screening / Tayside Cancer Centre, Division of Cancer Research, University of Dundee, Ninewells Hospital & Medical School, Dundee, UK
| | - Jonathan Berg
- Department of Genetic Medicine, Ninewells Hospital and Medical School, Dundee, UK
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25
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Quarrell OW, Clarke AJ, Compton C, de Die-Smulders CEM, Fryer A, Jenkins S, Lahiri N, MacLeod R, Miedzybrodzka Z, Morrison PJ, Musgrave H, O'Driscoll M, Strong M, van Belzen MJ, Vermeer S, Verschuuren-Bemelmans CC, Bijlsma EK. Predictive testing of minors for Huntington's disease: The UK and Netherlands experiences. Am J Med Genet B Neuropsychiatr Genet 2018; 177:35-39. [PMID: 29095566 DOI: 10.1002/ajmg.b.32582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/03/2017] [Accepted: 07/10/2017] [Indexed: 11/09/2022]
Abstract
A consistent feature of predictive testing guidelines for Huntington's disease (HD) is the recommendation not to undertake predictive tests on those < 18 years. Exceptions are made but the extent of, and reasons for, deviation from the guidelines are unknown. The UK Huntington's Prediction Consortium has collected data annually on predictive tests undertaken from the 23 UK genetic centers. DNA analysis for HD in the Netherlands is centralized in the Laboratory for Diagnostic Genome Analysis in Leiden. In the UK, 60 tests were performed on minors between 1994 and 2015 representing 0.63% of the total number of tests performed. In the Netherlands, 23 tests were performed on minors between 1997 and 2016. The majority of the tests were performed on those aged 16 and 17 years for both countries (23% and 57% for the UK, and 26% and 57% for the Netherlands). Data on the reasons for testing were identified for 36 UK and 22 Netherlands cases and included: close to the age of 18 years, pregnancy, currently in local authority care and likely to have less support available after 18 years, person never having the capacity to consent and other miscellaneous reasons. This study documents the extent of HD testing of minors in the UK and the Netherlands and suggests that, in general, the recommendation is being followed. We provide some empirical evidence as to reasons why clinicians have departed from the recommendation. We do not advise changing the recommendation but suggest that testing of minors continues to be monitored.
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Affiliation(s)
- Oliver W Quarrell
- Department of Clinical Genetics, Sheffield Children's Hospital, Northern General Hospital, Sheffield, UK
| | - Angus J Clarke
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff, UK
| | - Cecilia Compton
- University of London and St George's University Hospitals NHS Foundation Trust, Institute of Molecular and Clinical Sciences, London, UK
| | | | - Alan Fryer
- Liverpool Women's Hospital NHS Foundation Trust, Liverpool, UK
| | - Sian Jenkins
- Department Clinical Genetics, University Hospital of Southampton, Oxford Eye Hospital, Oxford, UK
| | - Nayana Lahiri
- University of London and St. George's Hospital, Institute of Molecular and Clinical Sciences, London, UK
| | - Rhona MacLeod
- Manchester Centre for Genomic Medicine, St Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Center, Manchester, UK
| | - Zosia Miedzybrodzka
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Patrick J Morrison
- Centre for Cancer Research and Cell Biology, Queens University Belfast, Belfast, UK
| | - Hannah Musgrave
- Department of Clinical Genetics, Yorkshire Regional Genetics Service, Chapel Allerton Hospital, Leeds, UK
| | - Mary O'Driscoll
- West midlands Regional Clinical genetics service and Birmingham Health Partners Birmingham Women's Hospital NHS Foundation Trust, Birmingham, UK
| | - Mark Strong
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Martine J van Belzen
- Department of Clinical Genetics, Leids Universitair Medisch Centrum, Leiden, The Netherlands
| | - Sascha Vermeer
- Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Emilia K Bijlsma
- Department of Clinical Genetics, Leids Universitair Medisch Centrum, Leiden, The Netherlands
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26
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Baig SS, Strong M, Rosser E, Taverner NV, Glew R, Miedzybrodzka Z, Clarke A, Craufurd D. 22 Years of predictive testing for Huntington's disease: the experience of the UK Huntington's Prediction Consortium. Eur J Hum Genet 2017; 25:1290. [PMID: 29023437 DOI: 10.1038/ejhg.2017.139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
This corrects the article DOI: 10.1038/ejhg.2016.36.
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27
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Petty RD, Dahle-Smith A, Stevenson DAJ, Osborne A, Massie D, Clark C, Murray GI, Dutton SJ, Roberts C, Chong IY, Mansoor W, Thompson J, Harrison M, Chatterjee A, Falk SJ, Elyan S, Garcia-Alonso A, Fyfe DW, Wadsley J, Chau I, Ferry DR, Miedzybrodzka Z. Gefitinib and EGFR Gene Copy Number Aberrations in Esophageal Cancer. J Clin Oncol 2017; 35:2279-2287. [PMID: 28537764 DOI: 10.1200/jco.2016.70.3934] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2024] Open
Abstract
Purpose The Cancer Esophagus Gefitinib trial demonstrated improved progression-free survival with the epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor gefitinib relative to placebo in patients with advanced esophageal cancer who had disease progression after chemotherapy. Rapid and durable responses were observed in a minority of patients. We hypothesized that genetic aberration of the EGFR pathway would identify patients benefitting from gefitinib. Methods A prespecified, blinded molecular analysis of Cancer Esophagus Gefitinib trial tumors was conducted to compare efficacy of gefitinib with that of placebo according to EGFR copy number gain (CNG) and EGFR, KRAS, BRAF, and PIK3CA mutation status. EGFR CNG was determined by fluorescent in situ hybridization (FISH) using prespecified criteria and EGFR FISH-positive status was defined as high polysomy or amplification. Results Biomarker data were available for 340 patients. In EGFR FISH-positive tumors (20.2%), overall survival was improved with gefitinib compared with placebo (hazard ratio [HR] for death, 0.59; 95% CI, 0.35 to 1.00; P = .05). In EGFR FISH-negative tumors, there was no difference in overall survival with gefitinib compared with placebo (HR for death, 0.90; 95% CI, 0.69 to 1.18; P = .46). Patients with EGFR amplification (7.2%) gained greatest benefit from gefitinib (HR for death, 0.21; 95% CI, 0.07 to 0.64; P = .006). There was no difference in overall survival for gefitinib versus placebo for patients with EGFR, KRAS, BRAF, and PIK3CA mutations, or for any mutation versus none. Conclusion EGFR CNG assessed by FISH appears to identify a subgroup of patients with esophageal cancer who may benefit from gefitinib as a second-line treatment. Results of this study suggest that anti-EGFR therapies should be investigated in prospective clinical trials in different settings in EGFR FISH-positive and, in particular, EGFR-amplified esophageal cancer.
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Affiliation(s)
- Russell D Petty
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Asa Dahle-Smith
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - David A J Stevenson
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Aileen Osborne
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Doreen Massie
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Caroline Clark
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Graeme I Murray
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Susan J Dutton
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Corran Roberts
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Irene Y Chong
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Wasat Mansoor
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Joyce Thompson
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Mark Harrison
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Anirban Chatterjee
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Stephen J Falk
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Sean Elyan
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Angel Garcia-Alonso
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - David Walter Fyfe
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Jonathan Wadsley
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Ian Chau
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - David R Ferry
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
| | - Zosia Miedzybrodzka
- Russell D. Petty, University of Dundee; Asa Dahle-Smith, Ninewells Hospital and Medical School, Dundee; David A.J. Stevenson, Aileen Osborne, Doreen Massie, Caroline Clark, Zosia Miedzybrodzka, and Graeme I. Murray, University of Aberdeen, Aberdeen; Susan J. Dutton and Corran Roberts, Centre for Statistics in Medicine, University of Oxford, Oxford; Mark Harrison, Mount Vernon Hospital, Northwood; Irene Y. Chong and Ian Chau, Royal Marsden Hospital, London and Surrey; Wasat Mansoor, Christie Hospital, Manchester; Joyce Thompson, Birmingham Heartland Hospital, Heart of England National Health Service Trust, Birmingham; Anirban Chatterjee, Royal Shrewsbury Hospital, Shrewsbury; Stephen J. Falk, Bristol Oncology Centre, Bristol; Sean Elyan, Cheltenham General Hospital, Cheltenham; Angel Garcia-Alonso, Clan Clwyd Hospital, Rhyl; David Walter Fyfe, Furness General Hospital, Furness; Jonathan Wadsley, Weston Park Hospital, Sheffield, United Kingdom; and David R. Ferry, Eli Lilly and Company, Bridgewater, NJ
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Baig SS, Strong M, Rosser E, Taverner NV, Glew R, Miedzybrodzka Z, Clarke A, Craufurd D, Quarrell OW. 22 Years of predictive testing for Huntington's disease: the experience of the UK Huntington's Prediction Consortium. Eur J Hum Genet 2016; 24:1396-402. [PMID: 27165004 PMCID: PMC5027682 DOI: 10.1038/ejhg.2016.36] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/06/2016] [Accepted: 03/29/2016] [Indexed: 11/09/2022] Open
Abstract
Huntington's disease (HD) is a progressive neurodegenerative condition. At-risk individuals have accessed predictive testing via direct mutation testing since 1993. The UK Huntington's Prediction Consortium has collected anonymised data on UK predictive tests, annually, from 1993 to 2014: 9407 predictive tests were performed across 23 UK centres. Where gender was recorded, 4077 participants were male (44.3%) and 5122 were female (55.7%). The median age of participants was 37 years. The most common reason for predictive testing was to reduce uncertainty (70.5%). Of the 8441 predictive tests on individuals at 50% prior risk, 4629 (54.8%) were reported as mutation negative and 3790 (44.9%) were mutation positive, with 22 (0.3%) in the database being uninterpretable. Using a prevalence figure of 12.3 × 10(-5), the cumulative uptake of predictive testing in the 50% at-risk UK population from 1994 to 2014 was estimated at 17.4% (95% CI: 16.9-18.0%). We present the largest study conducted on predictive testing in HD. Our findings indicate that the vast majority of individuals at risk of HD (>80%) have not undergone predictive testing. Future therapies in HD will likely target presymptomatic individuals; therefore, identifying the at-risk population whose gene status is unknown is of significant public health value.
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Affiliation(s)
- Sheharyar S Baig
- Department of Clinical Genetics, Sheffield Children's Hospital, Sheffield, UK
| | - Mark Strong
- School of Health and Related Research, University of Sheffield, Sheffield, UK
| | - Elisabeth Rosser
- Great Ormond Street Hospital for Children, NE Thames Regional Genetics Service, London, UK
| | - Nicola V Taverner
- Institute of Cancer and Genetics, University of Cardiff, Cardiff, UK
| | - Ruth Glew
- MND Care Centre, Morriston Hospital, Swansea, UK
| | - Zosia Miedzybrodzka
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Angus Clarke
- Institute of Cancer and Genetics, University of Cardiff, Cardiff, UK
| | - David Craufurd
- Faculty of Medical Sciences, Institute of Human Development, University of Manchester, Manchester, UK
- St Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - UK Huntington's Disease Prediction Consortium
- Department of Clinical Genetics, Sheffield Children's Hospital, Sheffield, UK
- School of Health and Related Research, University of Sheffield, Sheffield, UK
- Great Ormond Street Hospital for Children, NE Thames Regional Genetics Service, London, UK
- Institute of Cancer and Genetics, University of Cardiff, Cardiff, UK
- MND Care Centre, Morriston Hospital, Swansea, UK
- School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
- Faculty of Medical Sciences, Institute of Human Development, University of Manchester, Manchester, UK
- St Mary's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Oliver W Quarrell
- Department of Clinical Genetics, Sheffield Children's Hospital, Sheffield, UK
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Baig SS, Strong M, Rosser E, Taverner NV, Glew R, Miedzybrodzka Z, Clarke A, Craufurd D, Disease Prediction Consortium UH, Quarrell OW. 22 Years of predictive testing for Huntington's disease: the experience of the UK Huntington's Prediction Consortium. Eur J Hum Genet 2016; 24:1515. [PMID: 27628565 DOI: 10.1038/ejhg.2016.81] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Rae D, McDermott A, Miedzybrodzka Z, Campbell M, Gillies K. K3 Towards improvement in care delivery in huntington’s disease: improve HD. J Neurol Neurosurg Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kay C, Collins J, Miedzybrodzka Z, Wright G, Madore S, Gordon E, Gerry N, Fisher E, Davidson M, Slama R, Hayden M. I2 Huntington’s disease reduced penetrance alleles occur at high frequency and affect age-related increases in prevalence. J Neurol Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Miedzybrodzka Z, Keenan KF, McKee L. K11 How to help young people through the HD clinic: professionals’ views and experiences of facilitating parent/child communication. J Neurol Neurosurg Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Quarrell O, Cann R, Fryer A, Jenkins S, O’Driscoll M, Lahiri N, Compton C, Musgrave H, Miedzybrodzka Z, Clarke A, Macleod R. J2 Predictive testing for huntington’s disease (HD) on those under 18 years: the UK experience 1994–2015. J Neurol Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rae D, Ross A, Miedzybrodzka Z. K2 International guidelines project: an update of non-pharmacological recommendations for huntington’s disease care. J Neurol Neurosurg Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kay C, Collins JA, Miedzybrodzka Z, Madore SJ, Gordon ES, Gerry N, Davidson M, Slama RA, Hayden MR. Huntington disease reduced penetrance alleles occur at high frequency in the general population. Neurology 2016; 87:282-8. [PMID: 27335115 DOI: 10.1212/wnl.0000000000002858] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 03/16/2016] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVE To directly estimate the frequency and penetrance of CAG repeat alleles associated with Huntington disease (HD) in the general population. METHODS CAG repeat length was evaluated in 7,315 individuals from 3 population-based cohorts from British Columbia, the United States, and Scotland. The frequency of ≥36 CAG alleles was assessed out of a total of 14,630 alleles. The general population frequency of reduced penetrance alleles (36-39 CAG) was compared to the prevalence of patients with HD with genetically confirmed 36-39 CAG from a multisource clinical ascertainment in British Columbia, Canada. The penetrance of 36-38 CAG repeat alleles for HD was estimated for individuals ≥65 years of age and compared against previously reported clinical penetrance estimates. RESULTS A total of 18 of 7,315 individuals had ≥36 CAG, revealing that approximately 1 in 400 individuals from the general population have an expanded CAG repeat associated with HD (0.246%). Individuals with CAG 36-37 genotypes are the most common (36, 0.096%; 37, 0.082%; 38, 0.027%; 39, 0.000%; ≥40, 0.041%). General population CAG 36-38 penetrance rates are lower than penetrance rates extrapolated from clinical cohorts. CONCLUSION HD alleles with a CAG repeat length of 36-38 occur at high frequency in the general population. The infrequent diagnosis of HD at this CAG length is likely due to low penetrance. Another important contributing factor may be reduced ascertainment of HD in those of older age.
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Affiliation(s)
- Chris Kay
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Jennifer A Collins
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Zosia Miedzybrodzka
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Steven J Madore
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Erynn S Gordon
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Norman Gerry
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Mark Davidson
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Ramy A Slama
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ
| | - Michael R Hayden
- From the Centre for Molecular Medicine and Therapeutics (C.K., J.A.C., R.A.S., M.R.H.), University of British Columbia, Canada; Medical Genetics Group (Z.M., M.D.), School of Medicine and Dentistry, University of Aberdeen, UK; and Molecular Biology Group (S.J.M., E.S.G., N.G.), Coriell Institute for Medical Research, Camden, NJ.
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Dahle-Smith Å, Stevenson D, Massie D, Murray GI, Dutton SJ, Roberts C, Ferry D, Osborne A, Clark C, Petty RD, Miedzybrodzka Z. Epidermal Growth Factor (EGFR) copy number aberrations in esophageal and gastro-esophageal junctional carcinoma. Mol Cytogenet 2015; 8:78. [PMID: 26478746 PMCID: PMC4609119 DOI: 10.1186/s13039-015-0181-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 10/01/2015] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Clinical trials of agents targeting epidermal growth factor receptor (EGFR) in esophageal carcinoma (EC) have indicated a minority subgroup responsive to anti-EGFR therapies. Other investigations suggest increases in EGFR copy number are associated with poor prognosis in EC, but have used a variety of different techniques and tested numbers remain small. A validated assay for EGFR copy number in EC is needed, to allow investigation of EGFR copy number gain as a predictive biomarker for the anti-EGFR responsive subgroup of patients. We developed a scoring system in EC based upon established systems for EGFR fluorescence in-situ hybridisation (FISH) in lung cancer, and applied this in a series of 160 UK patients with advanced EC. RESULTS Dual colour FISH on formalin fixed paraffin embedded (FFPE) biopsies were scored independently by two operators as: disomy (score = 1), low trisomy (score = 2), high trisomy (score = 3), low polysomy (score = 4), high polysomy (score = 5) and amplification (score = 6). EGFR FISH positive cases (scores 5 and 6) were found in 32/160 (20 %) tumours, with high polysomy in 22 (13.8 %) and amplification in 10 (6.3 %). Two independent operator scores for FISH positivity were 100 % concordant. EGFR FISH positive status was not associated with clinic-pathological features. EGFR amplification was associated with worse survival (HR = 2.64, 95 % CI 1.04 to 6.71, p = 0.03). CONCLUSION Our FISH scoring system for EGFR in advanced EC identifies a significant subgroup (20.0 %) of FISH positive patients. EGFR amplification, which is found in 6.3 %, is associated with poor survival. It is not known if there is a role for EGFR targeted treatment in this subgroup of patients, however we are now utilising this EGFR FISH assay and scoring system in biopsies from clinical trials utilising anti-EGFR targeted therapies.
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Affiliation(s)
- Åsa Dahle-Smith
- />Division of Applied Medicine, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - David Stevenson
- />Department of Medical Genetics, Aberdeen Royal Infirmary, Aberdeen, AB25 2ZD UK
| | - Doreen Massie
- />Department of Medical Genetics, Aberdeen Royal Infirmary, Aberdeen, AB25 2ZD UK
| | - Graeme I. Murray
- />Division of Applied Medicine, University of Aberdeen, Aberdeen, AB25 2ZD UK
- />Department of Pathology, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Susan J. Dutton
- />Centre for Statistics in Medicine (CSM), Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Windmill Road, Oxford, OX3 7LD UK
| | - Corran Roberts
- />Centre for Statistics in Medicine (CSM), Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Botnar Research Centre, Windmill Road, Oxford, OX3 7LD UK
| | - David Ferry
- />Eli Lilly and Company, 440 Route 22 East, Bridgewater, NJ 08807 USA
| | - Aileen Osborne
- />Department of Medical Genetics, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Caroline Clark
- />Department of Medical Genetics, Aberdeen Royal Infirmary, Aberdeen, AB25 2ZD UK
| | - Russell D. Petty
- />Division of Applied Medicine, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Zosia Miedzybrodzka
- />Division of Applied Medicine, University of Aberdeen, Aberdeen, AB25 2ZD UK
- />Department of Medical Genetics, Aberdeen Royal Infirmary, Aberdeen, AB25 2ZD UK
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Herriot R, Miedzybrodzka Z. Antibody deficiency in Rubinstein-Taybi syndrome. Clin Genet 2015; 89:355-8. [DOI: 10.1111/cge.12671] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 08/24/2015] [Accepted: 08/24/2015] [Indexed: 11/26/2022]
Affiliation(s)
- R. Herriot
- Immunology Department; Aberdeen Royal Infirmary; Aberdeen UK
| | - Z. Miedzybrodzka
- Department of Medical Genetics; Aberdeen Royal Infirmary; Aberdeen UK
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Alrahbeni T, Sartor F, Anderson J, Miedzybrodzka Z, McCaig C, Müller B. Full UPF3B function is critical for neuronal differentiation of neural stem cells. Mol Brain 2015; 8:33. [PMID: 26012578 PMCID: PMC4445987 DOI: 10.1186/s13041-015-0122-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 05/11/2015] [Indexed: 12/03/2022] Open
Abstract
Background Mutation in the UPF3B gene on chromosome X is implicated in neurodevelopmental disorders including X-linked intellectual disability, autism and schizophrenia. The protein UPF3B is involved in the nonsense-mediated mRNA decay pathway (NMD) that controls mRNA stability and functions in the prevention of the synthesis of truncated proteins. Results Here we show that NMD pathway components UPF3B and UPF1 are down-regulated during differentiation of neural stem cells into neurons. Using tethered function assays we found that UPF3B missense mutations described in families with neurodevelopmental disorders reduced the activity of UPF3B protein in NMD. In neural stem cells, UPF3B protein was detected in the cytoplasm and in the nucleus. Similarly in neurons, UPF3B protein was detected in neurites, the somatic cytoplasm and in the nucleus. In both cell types nuclear UPF3B protein was enriched in the nucleolus. Using GFP tagged UPF3B proteins we found that the missense mutations did not affect the cellular localisation. Expression of missense mutant UPF3B disturbed neuronal differentiation and reduced the complexity of the branching of neurites. Neuronal differentiation was similarly affected in the presence of the NMD inhibitor Amlexanox. The expression of mutant UPF3B proteins lead to a subtle increase in mRNA levels of selected NMD targets. Conclusions Together our findings indicate that, despite the down-regulation of NMD factors, functional NMD is critical for neuronal differentiation. We propose that the neurodevelopmental phenotype of UPF3B missense mutation is caused by impairment of NMD function altering neuronal differentiation. Electronic supplementary material The online version of this article (doi:10.1186/s13041-015-0122-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tahani Alrahbeni
- University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK. .,Current address: Riyadh Colleges of Dentistry and Pharmacy, Olaya Campus, Riyadh, Saudi Arabia.
| | - Francesca Sartor
- University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK.
| | - Jihan Anderson
- University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK.
| | - Zosia Miedzybrodzka
- Medical Genetics, Polwarth Building, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK.
| | - Colin McCaig
- University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK.
| | - Berndt Müller
- University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, Scotland, UK.
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Legati A, Giovannini D, Nicolas G, López-Sánchez U, Quintáns B, Oliveira JRM, Sears RL, Ramos EM, Spiteri E, Sobrido MJ, Carracedo Á, Castro-Fernández C, Cubizolle S, Fogel BL, Goizet C, Jen JC, Kirdlarp S, Lang AE, Miedzybrodzka Z, Mitarnun W, Paucar M, Paulson H, Pariente J, Richard AC, Salins NS, Simpson SA, Striano P, Svenningsson P, Tison F, Unni VK, Vanakker O, Wessels MW, Wetchaphanphesat S, Yang M, Boller F, Campion D, Hannequin D, Sitbon M, Geschwind DH, Battini JL, Coppola G. Mutations in XPR1 cause primary familial brain calcification associated with altered phosphate export. Nat Genet 2015; 47:579-81. [PMID: 25938945 PMCID: PMC4516721 DOI: 10.1038/ng.3289] [Citation(s) in RCA: 194] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/06/2015] [Indexed: 12/17/2022]
Abstract
Primary familial brain calcification (PFBC) is a neurological disease characterized by calcium phosphate deposits in the basal ganglia and other brain regions and has thus far been associated with SLC20A2, PDGFB or PDGFRB mutations. We identified in multiple families with PFBC mutations in XPR1, a gene encoding a retroviral receptor with phosphate export function. These mutations alter phosphate export, implicating XPR1 and phosphate homeostasis in PFBC.
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Affiliation(s)
- Andrea Legati
- Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Donatella Giovannini
- 1] Institut de Génétique Moléculaire de Montpellier, CNRS UMR 5535, Montpellier, France. [2] Université de Montpellier, Montpellier, France. [3] Laboratory of Excellence GR-Ex, Paris, France. [4] Laboratory of Excellence EpiGenMed, Montpellier, France
| | - Gaël Nicolas
- 1] INSERM U1079, Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France. [2] Centre National de Référence pour les Malades Alzheimer Jeunes (CNR-MAJ), Rouen University Hospital, Rouen, France. [3] Department of Genetics, Rouen University Hospital, Rouen, France
| | - Uriel López-Sánchez
- 1] Institut de Génétique Moléculaire de Montpellier, CNRS UMR 5535, Montpellier, France. [2] Université de Montpellier, Montpellier, France. [3] Laboratory of Excellence GR-Ex, Paris, France. [4] Laboratory of Excellence EpiGenMed, Montpellier, France
| | - Beatriz Quintáns
- 1] Fundación Pública Galega de Medicina Xenómica, Servizo Galego de Saúde (SERGAS), Instituto de Investigación Sanitaria (IDIS, Hospital Clínico Universitario), Santiago de Compostela, Spain. [2] Grupo de Medicina Xenómica, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Universidad de Santiago de Compostela), Santiago de Compostela, Spain
| | - João R M Oliveira
- Keizo Asami Laboratory, Federal University of Pernambuco, Recife, Brazil
| | - Renee L Sears
- Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Eliana Marisa Ramos
- Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Elizabeth Spiteri
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - María-Jesús Sobrido
- 1] Fundación Pública Galega de Medicina Xenómica, Servizo Galego de Saúde (SERGAS), Instituto de Investigación Sanitaria (IDIS, Hospital Clínico Universitario), Santiago de Compostela, Spain. [2] Grupo de Medicina Xenómica, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Universidad de Santiago de Compostela), Santiago de Compostela, Spain
| | - Ángel Carracedo
- 1] Fundación Pública Galega de Medicina Xenómica, Servizo Galego de Saúde (SERGAS), Instituto de Investigación Sanitaria (IDIS, Hospital Clínico Universitario), Santiago de Compostela, Spain. [2] Grupo de Medicina Xenómica, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Universidad de Santiago de Compostela), Santiago de Compostela, Spain
| | - Cristina Castro-Fernández
- 1] Fundación Pública Galega de Medicina Xenómica, Servizo Galego de Saúde (SERGAS), Instituto de Investigación Sanitaria (IDIS, Hospital Clínico Universitario), Santiago de Compostela, Spain. [2] Grupo de Medicina Xenómica, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER, Universidad de Santiago de Compostela), Santiago de Compostela, Spain
| | - Stéphanie Cubizolle
- Neurology and Institute for Neurodegenerative Diseases, Bordeaux University Hospital and Bordeaux University, Bordeaux, France
| | - Brent L Fogel
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Cyril Goizet
- Service de Génétique Médicale, Bordeaux Hospital University Center, Bordeaux, France
| | - Joanna C Jen
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | | | - Anthony E Lang
- 1] Morton and Gloria Movement Disorders Clinic, Toronto Western Hospital, Toronto, Ontario, Canada. [2] Edmond J. Safra Program in Parkinson's Disease, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Zosia Miedzybrodzka
- Medical Genetics Group, School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK
| | | | - Martin Paucar
- 1] Translational Neuropharmacology, Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden. [2] Department of Neurology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Henry Paulson
- Department of Neurology, University of Michigan, Ann Arbor, Michigan, USA
| | - Jérémie Pariente
- 1] INSERM, Imagerie Cérébrale et Handicaps Neurologiques, UMR 825, Pole Neurosciences, Centre Hospitalier Universitaire (CHU) Purpan, Toulouse, France. [2] CHU de Toulouse, Université de Toulouse, Toulouse, France
| | - Anne-Claire Richard
- 1] INSERM U1079, Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France. [2] Centre National de Référence pour les Malades Alzheimer Jeunes (CNR-MAJ), Rouen University Hospital, Rouen, France
| | | | - Sheila A Simpson
- Medical Genetics Group, School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK
| | - Pasquale Striano
- Pediatric Neurology and Muscular Diseases Unit, Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, and Maternal and Child Health, University of Genoa 'G. Gaslini' Institute, Genoa, Italy
| | - Per Svenningsson
- 1] Translational Neuropharmacology, Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden. [2] Department of Neurology, Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - François Tison
- Neurology and Institute for Neurodegenerative Diseases, Bordeaux University Hospital and Bordeaux University, Bordeaux, France
| | - Vivek K Unni
- Department of Neurology, Oregon Health and Science University, Portland, Oregon, USA
| | - Olivier Vanakker
- Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
| | - Marja W Wessels
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, the Netherlands
| | | | - Michele Yang
- Department of Pediatrics, Children's Hospital Colorado and University of Colorado Denver, Aurora, Colorado, USA
| | - Francois Boller
- Department of Neurology, George Washington University Medical School, Washington, DC, USA
| | - Dominique Campion
- 1] INSERM U1079, Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France. [2] Centre National de Référence pour les Malades Alzheimer Jeunes (CNR-MAJ), Rouen University Hospital, Rouen, France. [3] Department of Research, Rouvray Psychiatric Hospital, Sotteville-lès-Rouen, France
| | - Didier Hannequin
- 1] INSERM U1079, Institute for Research and Innovation in Biomedicine (IRIB), University of Rouen, Rouen, France. [2] Centre National de Référence pour les Malades Alzheimer Jeunes (CNR-MAJ), Rouen University Hospital, Rouen, France. [3] Department of Genetics, Rouen University Hospital, Rouen, France. [4] Department of Neurology, Rouen University Hospital, Rouen, France
| | - Marc Sitbon
- 1] Institut de Génétique Moléculaire de Montpellier, CNRS UMR 5535, Montpellier, France. [2] Université de Montpellier, Montpellier, France. [3] Laboratory of Excellence GR-Ex, Paris, France. [4] Laboratory of Excellence EpiGenMed, Montpellier, France
| | - Daniel H Geschwind
- 1] Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA. [2] Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Jean-Luc Battini
- 1] Institut de Génétique Moléculaire de Montpellier, CNRS UMR 5535, Montpellier, France. [2] Université de Montpellier, Montpellier, France. [3] Laboratory of Excellence GR-Ex, Paris, France. [4] Laboratory of Excellence EpiGenMed, Montpellier, France
| | - Giovanni Coppola
- 1] Department of Psychiatry, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA. [2] Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
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Evans DG, Barwell J, Eccles DM, Collins A, Izatt L, Jacobs C, Donaldson A, Brady AF, Cuthbert A, Harrison R, Thomas S, Howell A, Miedzybrodzka Z, Murray A. The Angelina Jolie effect: how high celebrity profile can have a major impact on provision of cancer related services. Breast Cancer Res 2014; 16:442. [PMID: 25510853 PMCID: PMC4303122 DOI: 10.1186/s13058-014-0442-6] [Citation(s) in RCA: 206] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 09/03/2014] [Indexed: 12/22/2022] Open
Abstract
Introduction It is frequent for news items to lead to a short lived temporary increase in interest in a particular health related service, however it is rare for this to have a long lasting effect. In 2013, in the UK in particular, there has been unprecedented publicity in hereditary breast cancer, with Angelina Jolie’s decision to have genetic testing for the BRCA1 gene and subsequently undergo risk reducing mastectomy (RRM), and a pre-release of the NICE guidelines on familial breast cancer in January and their final release on 26th June. The release of NICE guidelines created a lot of publicity over the potential for use of chemoprevention using tamoxifen or raloxifene. However, the longest lasting news story was the release of details of film actress Angelina Jolie’s genetic test and surgery. Methods To assess the potential effects of the ‘Angelina Jolie’ effect, referral data specific to breast cancer family history was obtained from around the UK for the years 2012 and 2013. A consortium of over 30 breast cancer family history clinics that have contributed to two research studies on early breast surveillance were asked to participate as well as 10 genetics centres. Monthly referrals to each service were collated and increases from 2012 to 2013 assessed. Results Data from 12 family history clinics and 9 regional genetics services showed a rise in referrals from May 2013 onwards. Referrals were nearly 2.5 fold in June and July 2013 from 1,981 (2012) to 4,847 (2013) and remained at around two-fold to October 2013. Demand for BRCA1/2 testing almost doubled and there were also many more enquiries for risk reducing mastectomy. Internal review shows that there was no increase in inappropriate referrals. Conclusions The Angelina Jolie effect has been long lasting and global, and appears to have increased referrals to centres appropriately. Electronic supplementary material The online version of this article (doi:10.1186/s13058-014-0442-6) contains supplementary material, which is available to authorized users.
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Forrest Keenan K, McKee L, Miedzybrodzka Z. K02 How To Improve Young People's Experiences Of Predictive Testing For Huntington's Disease. Journal of Neurology, Neurosurgery & Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Rae D, Eden J, Miedzybrodzka Z. L04 Shaping The Huntington's Disease Journey: A Managed Care Pathway For Scotland. Journal of Neurology, Neurosurgery & Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Quarrell O, Rosser E, Taverner N, Miedzybrodzka Z, Clarke A, Craufurd D, Strong M. K06 Uptake of Predictive Tests for Huntington's Disease (HD) in the UK 1993-2012. Journal of Neurology, Neurosurgery & Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Wedderburn S, Rae D, Williams J, Carey-Heaton R, Miedzybrodzka Z. K05 Genetic Discrimination and Predictive Testing for Huntington's Disease and Familial Cancer in Northern Scotland: The I-Respond-UK Study. J Neurol Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rae D, McCann S, Miedzybrodzka Z. L01 Understanding the Health Care Experiences and needs of People Living with Huntingtons Disease (HD): An Exploratory Study. Journal of Neurology, Neurosurgery & Psychiatry 2014. [DOI: 10.1136/jnnp-2014-309032.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Shaw-Smith C, De Franco E, Lango Allen H, Batlle M, Flanagan SE, Borowiec M, Taplin CE, van Alfen-van der Velden J, Cruz-Rojo J, Perez de Nanclares G, Miedzybrodzka Z, Deja G, Wlodarska I, Mlynarski W, Ferrer J, Hattersley AT, Ellard S. GATA4 mutations are a cause of neonatal and childhood-onset diabetes. Diabetes 2014; 63:2888-94. [PMID: 24696446 PMCID: PMC6850908 DOI: 10.2337/db14-0061] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The GATA family zinc finger transcription factors GATA4 and GATA6 are known to play important roles in the development of the pancreas. In mice, both Gata4 and Gata6 are required for pancreatic development. In humans, GATA6 haploinsufficiency can cause pancreatic agenesis and heart defects. Congenital heart defects also are common in patients with GATA4 mutations and deletions, but the role of GATA4 in the developing human pancreas is unproven. We report five patients with deletions (n = 4) or mutations of the GATA4 gene who have diabetes and a variable exocrine phenotype. In four cases, diabetes presented in the neonatal period (age at diagnosis 1-7 days). A de novo GATA4 missense mutation (p.N273K) was identified in a patient with complete absence of the pancreas confirmed at postmortem. This mutation affects a highly conserved residue located in the second zinc finger domain of the GATA4 protein. In vitro studies showed reduced DNA binding and transactivational activity of the mutant protein. We show that GATA4 mutations/deletions are a cause of neonatal or childhood-onset diabetes with or without exocrine insufficiency. These results confirm a role for GATA4 in normal development of the human pancreas.
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Affiliation(s)
- Charles Shaw-Smith
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, U.K
| | - Elisa De Franco
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, U.K
| | - Hana Lango Allen
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, U.K
| | - Marta Batlle
- Genomic Programming of Beta-Cells Laboratory, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, SpainCIBER de Diabetes y Enfermedades Metabólicas Asociadas, Barcelona, Spain
| | - Sarah E Flanagan
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, U.K
| | - Maciej Borowiec
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, Lodz, Poland
| | - Craig E Taplin
- Department of Pediatrics, Seattle Children's Hospital, University of Washington, Seattle, WA
| | | | - Jaime Cruz-Rojo
- Unidad de Endocrinología Pediátrica Hospital, Universitario Doce de Octubre, Madrid, Spain
| | - Guiomar Perez de Nanclares
- Molecular (Epi)Genetics Laboratory, Hospital Universitario Araba-Txagorritxu, BioAraba, Vitoria-Gasteiz, Spain
| | | | - Grazyna Deja
- Department of Paediatrics, Paediatric Endocrinology and Diabetes, Silesian Medical University, Katowice, Poland
| | | | - Wojciech Mlynarski
- Department of Paediatrics, Oncology, Haematology and Diabetology, Medical University of Lodz, Lodz, Poland
| | - Jorge Ferrer
- Genomic Programming of Beta-Cells Laboratory, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, SpainCIBER de Diabetes y Enfermedades Metabólicas Asociadas, Barcelona, SpainDepartment of Medicine, Imperial College London, London, U.K
| | - Andrew T Hattersley
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, U.K
| | - Sian Ellard
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, U.K.
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Forrest Keenan K, McKee L, Miedzybrodzka Z. Help or hindrance: young people's experiences of predictive testing for Huntington's disease. Clin Genet 2014; 87:563-9. [DOI: 10.1111/cge.12439] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 05/20/2014] [Accepted: 05/27/2014] [Indexed: 11/28/2022]
Affiliation(s)
- K. Forrest Keenan
- Health Services Research Unit University of Aberdeen Aberdeen AB25 2ZD UK
| | - L. McKee
- Health Services Research Unit University of Aberdeen Aberdeen AB25 2ZD UK
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Pooley KA, McGuffog L, Barrowdale D, Frost D, Ellis SD, Fineberg E, Platte R, Izatt L, Adlard J, Bardwell J, Brewer C, Cole T, Cook J, Davidson R, Donaldson A, Dorkins H, Douglas F, Eason J, Houghton C, Kennedy MJ, McCann E, Miedzybrodzka Z, Murray A, Porteous ME, Rogers MT, Side LE, Tischkowitz M, Walker L, Hodgson S, Eccles DM, Morrison PJ, Evans DG, Eeles RA, Antoniou AC, Easton DF, Dunning AM. Lymphocyte telomere length is long in BRCA1 and BRCA2 mutation carriers regardless of cancer-affected status. Cancer Epidemiol Biomarkers Prev 2014; 23:1018-24. [PMID: 24642354 PMCID: PMC4266102 DOI: 10.1158/1055-9965.epi-13-0635-t] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Telomere length has been linked to risk of common diseases, including cancer, and has previously been proposed as a biomarker for cancer risk. Germline BRCA1 and BRCA2 mutations predispose to breast, ovarian, and other cancer types. METHODS We investigated telomere length in BRCA mutation carriers and their non-carrier relatives and further examined whether telomere length is a modifier of cancer risk in mutation carriers. We measured mean telomere length in DNA extracted from whole blood using high-throughput quantitative PCR. Participants were from the EMBRACE study in United Kingdom and Eire (n = 4,822) and comprised BRCA1 (n = 1,628) and BRCA2 (n = 1,506) mutation carriers and their non-carrier relatives (n = 1,688). RESULTS We find no significant evidence that mean telomere length is associated with breast or ovarian cancer risk in BRCA mutation carriers. However, we find mutation carriers to have longer mean telomere length than their non-carrier relatives (all carriers vs. non-carriers, Ptrend = 0.0018), particularly in families with BRCA2 mutations (BRCA2 mutation carriers vs. all non-carriers, Ptrend = 0.0016). CONCLUSIONS Our findings lend little support to the hypothesis that short mean telomere length predisposes to cancer. Conversely, our main and unexpected finding is that BRCA mutation carriers (regardless of cancer status) have longer telomeres than their non-mutation carrier, non-cancer-affected relatives. The longer telomere length in BRCA2 mutation carriers is consistent with its role in DNA damage response. Overall, it seems that increased telomere length may be a consequence of these mutations, but is not itself directly related to the increased cancer risk in carriers. IMPACT The finding that mutation carriers have longer mean telomere lengths than their non-carrier relatives is unexpected but biologically plausible and could open up new lines of research into the functions of the BRCA proteins. To our knowledge, this is the largest study of telomere length in BRCA mutation carriers and their relatives. The null cancer-risk association supports recent large prospective studies of breast and ovarian cancer and indicates that mean telomere length would not be a useful biomarker in these cancers. Cancer Epidemiol Biomarkers Prev; 23(6); 1018-24. ©2014 AACR.
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Affiliation(s)
- Karen A Pooley
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Lesley McGuffog
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Daniel Barrowdale
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Debra Frost
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Steve D Ellis
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Elena Fineberg
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Radka Platte
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Louise Izatt
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Julian Adlard
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Julian Bardwell
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Carole Brewer
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Trevor Cole
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Jackie Cook
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Rosemarie Davidson
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Alan Donaldson
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Huw Dorkins
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Fiona Douglas
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Jacqueline Eason
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Catherine Houghton
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - M John Kennedy
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Emma McCann
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Zosia Miedzybrodzka
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Alex Murray
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Mary E Porteous
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Mark T Rogers
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Lucy E Side
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Marc Tischkowitz
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Lisa Walker
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Shirley Hodgson
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Diana M Eccles
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Patrick J Morrison
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - D Gareth Evans
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Rosalind A Eeles
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Antonis C Antoniou
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Douglas F Easton
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
| | - Alison M Dunning
- Authors' Affiliations: Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care; Centre for Cancer Genetic Epidemiology, Department of Oncology, Strangeways Research Laboratory, University of Cambridge; Department of Epigenetics, Babraham Institute, Babraham Research Campus; Department of Medical Genetics, University of Cambridge, Cambridge; South East Thames Regional Genetics Service, Guy's Hospital; North East Thames Regional Genetics Service, Great Ormond Street Hospital for Children NHS Trust; Clinical Genetics Department, St. Georges Hospital, University of London, London; Yorkshire Regional Genetics Service, Leeds; Leicestershire Clinical Genetics Service, University Hospitals of Leicester NHS Trust; Department of Clinical Genetics, Royal Devon & Exeter Hospital, Exeter; West Midlands Regional Genetics Service, Birmingham Women's Hospital Healthcare NHS Trust, Edgbaston, Birmingham;Sheffield Clinical Genetics Service, Sheffield Children's Hospital, Sheffield; Ferguson-Smith Centre for Clinical Genetics, Yorkhill Hospitals, Glasgow; South West Regional Genetics Service, Bristol; North West Thames Regional Genetics Service, Kennedy-Galton Centre, Harrow; Institute of Human Genetics, Centre for Life, Newcastle Upon Tyne Hospitals NHS Trust, Newcastle upon Tyne; Nottingham Clinical Genetics Service, Nottingham University Hospitals NHS Trust; Cheshire & Merseyside Clinical Genetics Service, Liverpool Women's NHS Foundation Trust, Liverpool; All Wales Medical Genetics Service, Glan Clwyd Hospital, Rhyl; North of Scotland Regional Genetics Service, NHS Grampian & University of Aberdeen, Foresterhill, Aberdeen; All Wales Medical Genetics Services, Singleton Hospital, Swansea; South East of Scotland Regional Genetics Service, Western General Hospital, Edinburgh; All Wales Medical Genetics Services, University Hospital of Wales, Cardiff; Oxford Regional Genetics Service, Churchill Hospital, Oxford; Wessex Clinical Genetics Service, Princess A
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Petty RD, Dahle-Smith A, Miedzybrodzka Z, Dutton SJ, Murray GI, Stevenson D, Massie D, Osbourne A, Clark C, Mansoor W, Thompson J, Harrison M, Chatterjee A, Falk S, Elyan S, Garcia-Alonso A, Fyfe DW, Chau I, Collinson D, Ferry D. Epidermal growth factor receptor copy number gain (EGFR CNG) and response to gefitinib in esophageal cancer (EC): Results of a biomarker analysis of a phase III trial of gefitinib versus placebo (TRANS-COG). J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.4016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Wasat Mansoor
- The Christie Hospital NHS Foundation Trust, Manchester, United Kingdom
| | - Joyce Thompson
- Birmingham Heartlands Hospital, Birmingham, United Kingdom
| | | | | | - Stephen Falk
- Bristol Haematology and Oncology Centre, Bristol, United Kingdom
| | - Sean Elyan
- Cheltenham General Hospital, Cheltenham, United Kingdom
| | | | | | - Ian Chau
- The Royal Marsden NHS Foundation Trust, London and Surrey, United Kingdom
| | | | - David Ferry
- New Cross Hospital, Wolverhampton, United Kingdom
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Mavaddat N, Peock S, Frost D, Ellis S, Platte R, Fineberg E, Evans DG, Izatt L, Eeles RA, Adlard J, Davidson R, Eccles D, Cole T, Cook J, Brewer C, Tischkowitz M, Douglas F, Hodgson S, Walker L, Porteous ME, Morrison PJ, Side LE, Kennedy MJ, Houghton C, Donaldson A, Rogers MT, Dorkins H, Miedzybrodzka Z, Gregory H, Eason J, Barwell J, McCann E, Murray A, Antoniou AC, Easton DF. Cancer risks for BRCA1 and BRCA2 mutation carriers: results from prospective analysis of EMBRACE. J Natl Cancer Inst 2013; 105:812-22. [PMID: 23628597 DOI: 10.1093/jnci/djt095] [Citation(s) in RCA: 601] [Impact Index Per Article: 54.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Reliable estimates of cancer risk are critical for guiding management of BRCA1 and BRCA2 mutation carriers. The aims of this study were to derive penetrance estimates for breast cancer, ovarian cancer, and contralateral breast cancer in a prospective series of mutation carriers and to assess how these risks are modified by common breast cancer susceptibility alleles. METHODS Prospective cancer risks were estimated using a cohort of 978 BRCA1 and 909 BRCA2 carriers from the United Kingdom. Nine hundred eighty-eight women had no breast or ovarian cancer diagnosis at baseline, 1509 women were unaffected by ovarian cancer, and 651 had been diagnosed with unilateral breast cancer. Cumulative risks were obtained using Kaplan-Meier estimates. Associations between cancer risk and covariables of interest were evaluated using Cox regression. All statistical tests were two-sided. RESULTS The average cumulative risks by age 70 years for BRCA1 carriers were estimated to be 60% (95% confidence interval [CI] = 44% to 75%) for breast cancer, 59% (95% CI = 43% to 76%) for ovarian cancer, and 83% (95% CI = 69% to 94%) for contralateral breast cancer. For BRCA2 carriers, the corresponding risks were 55% (95% CI = 41% to 70%) for breast cancer, 16.5% (95% CI = 7.5% to 34%) for ovarian cancer, and 62% (95% CI = 44% to 79.5%) for contralateral breast cancer. BRCA2 carriers in the highest tertile of risk, defined by the joint genotype distribution of seven single nucleotide polymorphisms associated with breast cancer risk, were at statistically significantly higher risk of developing breast cancer than those in the lowest tertile (hazard ratio = 4.1, 95% CI = 1.2 to 14.5; P = .02). CONCLUSIONS Prospective risk estimates confirm that BRCA1 and BRCA2 carriers are at high risk of developing breast, ovarian, and contralateral breast cancer. Our results confirm findings from retrospective studies that common breast cancer susceptibility alleles in combination are predictive of breast cancer risk for BRCA2 carriers.
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Affiliation(s)
- Nasim Mavaddat
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, Manchester, UK
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