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Alric H, Coffin E, Lekhal C, Benusiglio PR, Dhooge M, Colas C, Caron O, Cusin V, Becq A, Perez Cuadrado Robles E, Leenhardt R, Perkins G, Buecher B, Bellanger J, Rahmi G, Malka D, Laurent-Puig P, Chaussade S, Benamouzig R, Parc Y, Cellier C, Perrod G. Features of colorectal adenomas among young patients with Lynch syndrome according to path_MMR: Results from the PRED-IdF registry. Dig Liver Dis 2024; 56:672-678. [PMID: 37758611 DOI: 10.1016/j.dld.2023.09.010] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Lynch syndrome (LS) is the most frequent inherited colorectal cancer syndrome. AIM To assess the burden of adenoma in LS patients under 50 years-old followed in the PRED-IdF network. METHODS From January 2010 to January 2019, all patients under 50 years of age with a confirmed LS germline mutation were included. The main objective was the description of adenomas characteristics according to path_MMR. RESULTS We analyzed data from 708 patients (mean age 34.8 ± 8.6), of which 41.8 % were male. Among these patients, 37.6% had path_MLH1, 45.4% path_MSH2, 13.9% path_MSH6, 2.9% path_PMS2, and 1.2% path_EpCAM. The analysis included 1721 (70.9%) follow-up colonoscopies. A total of 682 adenomas were detected, including 140 (20.5%) advanced adenomas. The adenoma detection rates during the first and follow-up colonoscopies were 19.2% and 20.5%, respectively. Most adenomas were <10 mm (57.9%), located in the proximal colon (334, 48.9%), and presented as non-polypoid lesions (493, 72.3%). The median growth time for adenomas was 23 months (range 9-114) irrespective of the path_MMR mutation (p = 0.62). CONCLUSION LS patients under 50 years of age have a high burden of adenomas, particularly small non-polypoid adenomas located in the proximal colon. These results highlight the need for intensive screening, with a particular focus on the proximal colon.
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Affiliation(s)
- Hadrien Alric
- APHP. Centre Université de Paris, Department of Gastroenterology and Digestive Endoscopy, Georges Pompidou European Hospital, 20 rue Leblanc, 75015 Paris, France.
| | - Elise Coffin
- APHP. Centre Université de Paris, Department of Gastroenterology and Digestive Endoscopy, Georges Pompidou European Hospital, 20 rue Leblanc, 75015 Paris, France
| | - Celine Lekhal
- Department of Gastroenterology, Paris-13 University, Assistance Publique - Hôpitaux de Paris, Avicenne Hospital, 125 rue de Stalingrad, 93000 Bobigny, France
| | - Patrick R Benusiglio
- AP-HP. Sorbonne Université, Endoscopy Unit, Saint Antoine hospital, 184 Rue du Faubourg Saint-Antoine, 75012 Paris, France; AP-HP. Sorbonne Université, Department of Genetics, Pitié-Salpêtrière hospital, 7-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Marion Dhooge
- APHP. Centre Université de Paris, Department of Gastroenterology, Hôpital Cochin, 27 rue du Faubourg St-Jacques, 75014 Paris, France
| | - Chrystelle Colas
- Department of Medical Oncology, Institut Curie, 26 Rue d'Ulm, 75005 Paris, France
| | - Olivier Caron
- Department of Medical Oncology, Institut Gustave Roussy, 114 Rue Edouard Vaillant, 94800 Villejuif, France
| | - Veronica Cusin
- AP-HP. Sorbonne Université, Department of Genetics, Pitié-Salpêtrière hospital, 7-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - Aymeric Becq
- AP-HP. Sorbonne Université, Endoscopy Unit, Saint Antoine hospital, 184 Rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - Enrique Perez Cuadrado Robles
- APHP. Centre Université de Paris, Department of Gastroenterology and Digestive Endoscopy, Georges Pompidou European Hospital, 20 rue Leblanc, 75015 Paris, France
| | - Romain Leenhardt
- AP-HP. Sorbonne Université, Endoscopy Unit, Saint Antoine hospital, 184 Rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - Geraldine Perkins
- APHP. Centre Université de Paris, Department of Digestive Oncology, Georges Pompidou European Hospital, 20 rue Leblanc, 75015 Paris, France; APHP. Centre Université de Paris, Department of Oncogenetic, Georges Pompidou European Hospital, 20 rue LEBLANC, 75015 Paris, France
| | - Bruno Buecher
- AP-HP. Sorbonne Université, Endoscopy Unit, Saint Antoine hospital, 184 Rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - Jérôme Bellanger
- AP-HP. Sorbonne Université, Endoscopy Unit, Saint Antoine hospital, 184 Rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - Gabriel Rahmi
- APHP. Centre Université de Paris, Department of Gastroenterology and Digestive Endoscopy, Georges Pompidou European Hospital, 20 rue Leblanc, 75015 Paris, France
| | - David Malka
- Department of Medical Oncology, Institut Gustave Roussy, 114 Rue Edouard Vaillant, 94800 Villejuif, France
| | - Pierre Laurent-Puig
- APHP. Centre Université de Paris, Department of Oncogenetic, Georges Pompidou European Hospital, 20 rue LEBLANC, 75015 Paris, France
| | - Stanislas Chaussade
- APHP. Centre Université de Paris, Department of Gastroenterology, Hôpital Cochin, 27 rue du Faubourg St-Jacques, 75014 Paris, France
| | - Robert Benamouzig
- Department of Gastroenterology, Paris-13 University, Assistance Publique - Hôpitaux de Paris, Avicenne Hospital, 125 rue de Stalingrad, 93000 Bobigny, France
| | - Yann Parc
- APHP. SU Sorbonne university, Department of Digestive Surgery, Saint Antoine hospital, 184 Rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - Christophe Cellier
- APHP. Centre Université de Paris, Department of Gastroenterology and Digestive Endoscopy, Georges Pompidou European Hospital, 20 rue Leblanc, 75015 Paris, France
| | - Guillaume Perrod
- APHP. Centre Université de Paris, Department of Gastroenterology and Digestive Endoscopy, Georges Pompidou European Hospital, 20 rue Leblanc, 75015 Paris, France
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Pulaski M, Dungan M, Weber M, Constantino G, Katona BW. Low prevalence of gastric intestinal metaplasia and Helicobacter pylori on surveillance upper endoscopy in Lynch syndrome. Fam Cancer 2024; 23:23-27. [PMID: 38291131 DOI: 10.1007/s10689-023-00354-z] [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] [Received: 07/18/2023] [Accepted: 12/09/2023] [Indexed: 02/01/2024]
Abstract
Lynch syndrome (LS) increases the risk of numerous different cancers including gastric cancer. While some current guidelines recommend empiric gastric biopsies be performed during upper gastrointestinal cancer surveillance in Lynch syndrome (LS), the yield of these biopsies and the prevalence of gastric intestinal metaplasia (GIM) and Helicobacter pylori (HP) in LS remains unknown. Herein we analyze 165 consecutive individuals with LS who underwent upper endoscopic surveillance with biopsies of the gastric antrum and body being performed universally in all individuals. Of the study cohort, 6.7% of universally biopsied individuals with LS had GIM and/or HP (5.5% GIM, 3.6% HP). Biopsies of the gastric body did not increase rates of GIM/HP identification compared to antral biopsies alone. GIM was detected on subsequent surveillance in 2.2% of individuals without prior GIM, which may represent either newly developed GIM or GIM that was missed on a prior upper endoscopy due to sampling error. These findings support inclusion of at least baseline gastric antrum biopsies as a routine component of all standard surveillance upper endoscopies performed in LS.
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Affiliation(s)
- Marya Pulaski
- Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Michaela Dungan
- Division of Gastroenterology and Hepatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Marina Weber
- Division of Gastroenterology and Hepatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Gillain Constantino
- Division of Gastroenterology and Hepatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Bryson W Katona
- Division of Gastroenterology and Hepatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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3
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Rothenmund H, Lambert P, Khan D, Kim C, Sharma B, Serfas K, Chodirker B, Singh H. Province-Wide Ascertainment of Lynch Syndrome in Manitoba. Clin Gastroenterol Hepatol 2024; 22:642-652.e2. [PMID: 37879520 DOI: 10.1016/j.cgh.2023.10.005] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 09/14/2023] [Accepted: 10/02/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND & AIMS We describe the experience of Lynch syndrome (LS) diagnosis in the province of Manitoba, Canada, over the past 20 years. METHODS We performed a retrospective review of charts from the provincial Genetics Clinic from January 1, 2000, to May 31, 2023. We extracted data on individuals identified to carry a germline pathogenic or likely pathogenic LS gene variant, the mode of ascertainment, family history, and cascade genetic testing (CGT). Data were stratified and compared before and after the year of implementation (October 2013) of the provincial LS screening program (LSSP) and ascertainment by the LSSP vs clinic referrals (CRs). RESULTS Between 2014 and 2021, 50 of 101 (49.5%) index cases were identified by the LSSP compared with 51 of 101 (50.5%) from CRs. The proportion of PMS2 variants was 34% (17 of 50) for LSSP index cases compared with 21.6% (11 of 51) for CRs from 2014 to 2021 (P < .001). Among CRs from 2014 to 2021, 24 of 51 (47.1%) families met the Amsterdam criteria, compared with 11 of 50 (22.0%) for the LSSP (P = .01). CGT occurred among 46.8% (95 of 203; average, 1.9 relatives/index) of first-degree relatives of CR index cases vs 36.5% (84 of 230; average, 1.7 relatives/index) of first-degree relatives of LSSP index cases (P = .03). Daughters were most likely to undergo CGT. CONCLUSIONS A tumor screening program is more effective at detecting individuals with lower penetrant gene variants and families who do not meet traditional family history-based criteria. Cascade genetic testing is higher among clinic referrals compared with the screening program. These findings suggest a complementary role of these 2 ascertainment methods for Lynch syndrome.
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Affiliation(s)
- Heidi Rothenmund
- Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Pascal Lambert
- Paul Albrechtsen Research Institute CancerCare Manitoba, Winnipeg, Manitoba, Canada
| | - Deirdre Khan
- Paul Albrechtsen Research Institute CancerCare Manitoba, Winnipeg, Manitoba, Canada
| | - Christina Kim
- Paul Albrechtsen Research Institute CancerCare Manitoba, Winnipeg, Manitoba, Canada; Section of Hematology/Oncology, Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Bhavya Sharma
- Section of Gastroenterology, Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kim Serfas
- Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Bernard Chodirker
- Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Department of Pediatrics and Child Health, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Harminder Singh
- Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Paul Albrechtsen Research Institute CancerCare Manitoba, Winnipeg, Manitoba, Canada; Section of Hematology/Oncology, Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Section of Gastroenterology, Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada; Department of Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
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Mirabdolhosseini SM, Yaghoob Taleghani M, Rejali L, Sadeghi H, Fatemi N, Tavallaei M, Famil Meyari A, Saeidi N, Ketabi Moghadam P, Sadeghi A, Asadzadeh Aghdaei H, Zali MR, Nazemalhosseini Mojarad E. Rare single-nucleotide variants of MLH1 and MSH2 genes in patients with Lynch syndrome. Cancer Rep (Hoboken) 2024; 7:e1930. [PMID: 37919876 PMCID: PMC10809271 DOI: 10.1002/cnr2.1930] [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: 05/30/2023] [Revised: 09/27/2023] [Accepted: 10/16/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Approximately 5% of colorectal cancers (CRCs) are hereditary. Lynch syndrome (LS), also known as hereditary nonpolyposis colorectal cancer (HNPCC), is the most common form of recognized hereditary CRC. Although Iran, as a developing country, has a high incidence of CRC, the spectrum of variants has yet to be thoroughly investigated. AIMS This study aimed to investigate pathogenic and non-pathogenic variants in MLH1 and MSH2 genes in Iranian patients with suspected Lynch syndrome (sLS). METHODS AND RESULTS In the present study, 25 peripheral blood samples were collected from patients with sLS and high microsatellite instability (MSI-H). After DNA extraction, all samples underwent polymerase chain reaction and Sanger sequencing to identify the variants in the exons of MLH1 and MSH2 genes. The identified variants were interpreted using prediction tools, and were finally reported under ACMG guidelines. In our study population, 13 variants were found in the MLH1 gene and 8 in the MSH2 gene. Interestingly, 7 of the 13 MLH1 variants and 3 of the 8 MSH2 variants were novel, whereas the remaining variants were previously reported or available in databases. In addition, some patients with sLS did not have variants in the exons of the MLH1 and MSH2 genes. The variants detected in the MLH1 and MSH2 genes had specific characteristics regarding the number, area of occurrence, and their relationship with demographic and clinicopathologic features. CONCLUSION Overall, our results suggest that analysis of MLH1 and MSH2 genes alone is insufficient in the Iranian population, and more comprehensive tests are recommended for detecting LS.
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Affiliation(s)
- Seyed Mohsen Mirabdolhosseini
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Mohammad Yaghoob Taleghani
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Leili Rejali
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Hossein Sadeghi
- Genomic Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Nayeralsadat Fatemi
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Mehdi Tavallaei
- Department of Colorectal SurgeryMedical Science of Shahid Beheshti UniversityTehranIran
| | - Amin Famil Meyari
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Narges Saeidi
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Pardis Ketabi Moghadam
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Amir Sadeghi
- Gastroenterology and Liver Diseases Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Hamid Asadzadeh Aghdaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
| | - Ehsan Nazemalhosseini Mojarad
- Gastroenterology and Liver Diseases Research CenterResearch Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical SciencesTehranIran
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Power RF, Doherty DE, Parker I, Gallagher DJ, Lowery MA, Cadoo KA. Modifiable Risk Factors and Risk of Colorectal and Endometrial Cancers in Lynch Syndrome: A Systematic Review and Meta-Analysis. JCO Precis Oncol 2024; 8:e2300196. [PMID: 38207227 DOI: 10.1200/po.23.00196] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 01/13/2024] Open
Abstract
PURPOSE Lynch syndrome is the most common hereditary cause of colorectal and endometrial cancers. Modifiable risk factors, including obesity, physical activity, alcohol intake, and smoking, are well-established in sporadic cancers but are less studied in Lynch syndrome. METHODS Searches were conducted on MEDLINE, Embase, and Web of Science for cohort studies that investigated the association between modifiable risk factors and the risk of colorectal or endometrial cancer in people with Lynch syndrome. Adjusted hazard ratios (HRs) and 95% CIs for colorectal and endometrial cancers were pooled using a random effects model. The protocol was prospectively registered on PROSPERO (CRD 42022378462), and the meta-analysis was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Meta-Analysis of Observational Studies in Epidemiology reporting guidelines. RESULTS A total of 770 citations were reviewed. Eighteen studies were identified for qualitative synthesis, with seven colorectal cancer (CRC) studies eligible for meta-analysis. Obesity (HR, 2.38 [95% CI, 1.52 to 3.73]) was associated with increased CRC risk. There was no increased CRC risk associated with smoking (HR, 1.04 [95% CI, 0.82 to 1.32]) or alcohol intake (HR, 1.32 [95% CI, 0.97 to 1.81]). Type 2 diabetes mellitus (T2DM) and some dietary factors might increase risk of CRC although more studies are needed. In a qualitative synthesis of three endometrial cancer cohort studies, female hormonal risk factors and T2DM may affect the risk of endometrial cancer, but obesity was not associated with an increased risk. CONCLUSION Lifestyle recommendations related to weight and physical activity may also be relevant to cancer prevention for individuals with Lynch syndrome. Further high-quality prospective cohort studies, in particular, including endometrial cancer as an end point, are needed to inform evidence-based cancer prevention strategies in this high-risk population.
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Affiliation(s)
- Robert F Power
- Mater Misericordiae University Hospital, Dublin, Ireland
- Cancer Genetics Service, Trinity St James's Cancer Institute, Dublin, Ireland
| | | | - Imelda Parker
- Department of Biostatistics, Cancer Trials Ireland, Dublin, Ireland
| | - David J Gallagher
- Cancer Genetics Service, Trinity St James's Cancer Institute, Dublin, Ireland
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- Department of Medical Oncology, Trinity St James's Cancer Institute, Dublin, Ireland
| | - Maeve A Lowery
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- Department of Medical Oncology, Trinity St James's Cancer Institute, Dublin, Ireland
| | - Karen A Cadoo
- Cancer Genetics Service, Trinity St James's Cancer Institute, Dublin, Ireland
- School of Medicine, Trinity College Dublin, Dublin, Ireland
- Department of Medical Oncology, Trinity St James's Cancer Institute, Dublin, Ireland
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Lafeuille P, Calavas L, Benech N, Raby N, Subtil F, Pioche M, Saurin JC. Coordinated prospective follow-up of Lynch syndrome is able to detect the majority of incident cancers. Dig Liver Dis 2023; 55:1735-1741. [PMID: 37098454 DOI: 10.1016/j.dld.2023.03.016] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 04/27/2023]
Abstract
BACKGROUND Lynch syndrome is one of the most common genetic predispositions to many cancers, most of which do not have a consensus recommendation for screening. AIMS We studied in our region the value of a systematized and coordinated follow-up program for patients with Lynch syndrome on all organs at risk. METHODS A multicenter prospective cohort evaluation was performed, from January 2016 to June 2021. RESULTS One hundred and seventy-eight patients were prospectively included (104 women (58%), median age 44 years, range 35-56 years) with a median follow-up of 4 years (range 2.5-5 years), corresponding to a total of 652 patient-years. The overall cancer incidence rate was 13.80 per 1000 patient-years. Seven of nine cancers (78%) were detected during the follow-up program, with all cancers identified at an early stage. The detection rate of adenomas during colonoscopies was 24%. CONCLUSION These preliminary data suggest that coordinated prospective follow-up of Lynch syndrome is capable of detecting the majority of incident cancers, particularly for locations not covered by an international follow-up recommendation. However, these results need to be confirmed by larger-scale studies.
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Affiliation(s)
- Pierre Lafeuille
- Department of Gastroenterology and Endoscopy, Edouard Herriot Hospital, Lyon, France.
| | - Laura Calavas
- Department of Gastroenterology and Endoscopy, Edouard Herriot Hospital, Lyon, France
| | - Nicolas Benech
- Department of Gastroenterology and Endoscopy, Edouard Herriot Hospital, Lyon, France
| | - Naouele Raby
- Department of Gastroenterology and Endoscopy, Edouard Herriot Hospital, Lyon, France
| | - Fabien Subtil
- Service de Biostatistique, Hospices Civils de Lyon, Lyon, France; Université de Lyon, Université Lyon 1, CNRS, Laboratoire de Biométrie et Biologie Evolutive UMR 5558, Villeurbanne, France
| | - Mathieu Pioche
- Department of Gastroenterology and Endoscopy, Edouard Herriot Hospital, Lyon, France
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Eikenboom EL, Moen S, van Leerdam ME, Papageorgiou G, Doukas M, Tanis PJ, Dekker E, Wagner A, Spaander MCW. Metachronous colorectal cancer risk according to Lynch syndrome pathogenic variant after extensive versus partial colectomy in the Netherlands: a retrospective cohort study. Lancet Gastroenterol Hepatol 2023; 8:1106-1117. [PMID: 37865103 DOI: 10.1016/s2468-1253(23)00228-5] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/30/2023] [Accepted: 07/03/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Extensive colectomy (subtotal or total colectomy) is often advised for carriers of Lynch syndrome with colorectal cancer. However, the risk of metachronous colorectal cancer might differ by Lynch syndrome variant, meaning that partial colectomy, which has better functional outcomes, might be adequate for some patients with low-risk variants. We aimed to assess the risk of metachronous colorectal cancer after partial colectomy and extensive colectomy in carriers of Lynch syndrome with different pathogenic variants. METHODS For this retrospective cohort study, carriers of Lynch syndrome with colorectal cancer in the Netherlands were identified by linkage of the Dutch Foundation for the Detection of Hereditary Tumors (StOET) database and the Dutch Nationwide Network and Registry of Histopathology and Cytopathology (PALGA) database. Data on demographics, Lynch syndrome variants, colorectal cancers, surgery types, mortality, and surveillance colonoscopies were extracted. Data on colorectal cancer and surveillance colonoscopies were updated until Feb 28, 2022. Data on survival status was updated until Feb 7, 2022. MLH1, MSH2, and EPCAM were classified as high-risk variants and MSH6 and PMS2 as low-risk variants. Patients for whom the type of surgery was unknown were excluded. Cox regression time-to-event analyses were done to assess the risk of metachronous colorectal cancer in four subgroups based on pathogenic variant (high-risk vs low-risk variants) and the extent of surgery (extensive colectomy vs partial colectomy). Sex, age at the time of primary colorectal cancer, primary colorectal cancer stage, performance of surveillance colonoscopies, adherence to the surveillance guidelines, and time period of primary colorectal cancer diagnosis were added to the model as possible confounders. Metachronous colorectal cancer was defined as colorectal cancer diagnosed more than 6 months after the primary colorectal cancer. Patients were censored at time of death or assembly of the database. FINDINGS Of 1908 carriers of Lynch syndrome registered in StOET, 532 with a history of colorectal cancer were identified after linkage with PALGA. Five carriers were excluded because of an unknown surgery type, leaving 527 in our sample (mean age at primary colorectal cancer 48·7 years [SD 12·1]; 274 [52%] male and 253 [48%] female). 121 (23%) patients developed metachronous colorectal cancer (median time from primary colorectal cancer to metachronous colorectal cancer 11·0 years [IQR 2·1-17·8]). Metachronous colorectal cancer occurred in 12 (12%) of 97 patients with high-risk variants and extensive colectomy, in 85 (32%) of 267 patients with high-risk variants and partial colectomy, in zero (0%) of 11 patients with low-risk variants and extensive colectomy, and in 24 (16%) of 152 patients with low-risk variants and partial colectomy. Partial colectomy was associated with a higher risk of metachronous colorectal cancer than extensive colectomy in the high-risk variant group (hazard ratio 1·97, 95% CI 1·04-3·73; p=0·039). The risk of metachronous colorectal cancer did not differ between carriers of low-risk variants who had partial colectomy and those of high-risk variants who had extensive colectomy (1·14, 0·55-2·36; p=0·72). INTERPRETATION The risk of metachronous colorectal cancer after partial colectomy in carriers of low-risk variants is similar to the risk after extensive colectomy in carriers of high-risk variants. This finding suggests that partial colectomy followed by endoscopic surveillance is an appropriate management approach to treat colorectal cancer in carriers of low-risk Lynch syndrome variants. FUNDING None.
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Affiliation(s)
- Ellis L Eikenboom
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands; Department of Clinical Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Sarah Moen
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Monique E van Leerdam
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, Netherlands; Department of Gastrointestinal Oncology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Grigorios Papageorgiou
- Department of Biostatistics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Michail Doukas
- Department of Pathology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Pieter J Tanis
- Department of Surgical Oncology and Gastrointestinal Surgery, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center, Amsterdam, Netherlands
| | - Anja Wagner
- Department of Clinical Genetics, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Manon C W Spaander
- Department of Gastroenterology and Hepatology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands.
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Tanabe K, Nakanishi Y, Okubo N, Matsumoto S, Umino Y, Kataoka M, Yajima S, Yoshida T, Miyazaki S, Kuwata T, Ishii G, Watanabe R, Masuda H. Prevalence and characteristics of patients with upper urinary tract urothelial carcinoma having potential Lynch syndrome identified by immunohistochemical universal screening and Amsterdam criteria II. BMC Cancer 2023; 23:940. [PMID: 37798659 PMCID: PMC10557337 DOI: 10.1186/s12885-023-11460-7] [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] [Received: 07/26/2023] [Accepted: 09/28/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND This study aimed to identify patients with upper urinary tract urothelial carcinoma (UTUC) having potential Lynch syndrome (pLS) by immunohistochemistry (IHC) of DNA mismatch repair gene-related proteins (MMRPs) and Amsterdam criteria II and explore their clinical characteristics. METHODS We retrospectively collected the clinical data of 150 consecutive patients with UTUC who underwent surgical resection at our institution between February 2012 and December 2020, and immunohistochemistry (IHC) of four MMRPs (MLH1, MSH2, MSH6, and PMS2) on all UTUC specimens was performed. Patients who tested positive for Amsterdam criteria (AMS) II and/or IHC screening were classified as having pLS and others as non-pLS, and their characteristics were explored. RESULTS In this study, 5 (3%) and 6 (4%) patients were positive for AMS II and IHC screening, respectively. Two patient were positive for both AMS II and IHC screening, resulting in 9 (6%) patients with pLS. The pLS group was predominantly female (67% vs. 36%; p = 0.0093) and had more right-sided tumors (100% vs. 43%; p = 0.0009) than the non-pLS group. Of the 6 patients who were positive for IHC screening, 4 showed a combined loss of MSH2/MSH6 (n = 3) and MLH1/PMS2 (n = 1). Other two patients showed single loss of MSH6 and PSM2. CONCLUSIONS AMS II and IHC screening identified pLS in 6% of patients with UTUC. The IHC screening-positive group tends to have relatively high rate of combined loss, but some patients have single loss. AMS II may overlook patients with LS, and a universal screening may be required for patients with UTUC as well as those with colorectal and endometrial cancer.
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Affiliation(s)
- Kenji Tanabe
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan
| | - Yasukazu Nakanishi
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan.
| | - Naoya Okubo
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan
| | - Shunya Matsumoto
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan
| | - Yosuke Umino
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan
| | - Madoka Kataoka
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan
| | - Shugo Yajima
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan
| | - Teruhiko Yoshida
- Department of Genetic Medicine, National Cancer Center Hospital, Tokyo, Japan
| | - Saori Miyazaki
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Chiba, Japan
| | - Takeshi Kuwata
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Chiba, Japan
- Department of Genetic Medicine, National Cancer Center Hospital East, Chiba, Japan
| | - Genichiro Ishii
- Department of Pathology and Clinical Laboratories, National Cancer Center Hospital East, Chiba, Japan
| | - Reiko Watanabe
- Department of Genetic Medicine, National Cancer Center Hospital, Tokyo, Japan
- Department of Pathology, St. Marianna University School of Medicine, Kanagawa, Japan
| | - Hitoshi Masuda
- Department of Urology, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa-Shi, Chiba, 277-8577, Japan
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Foda ZH, Dharwadkar P, Katona BW. Preventive strategies in familial and hereditary colorectal cancer. Best Pract Res Clin Gastroenterol 2023; 66:101840. [PMID: 37852714 DOI: 10.1016/j.bpg.2023.101840] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/05/2023] [Accepted: 05/17/2023] [Indexed: 10/20/2023]
Abstract
Colorectal cancer is a leading cause of cancer-related deaths worldwide. While most cases are sporadic, a significant proportion of cases are associated with familial and hereditary syndromes. Individuals with a family history of colorectal cancer have an increased risk of developing the disease, and those with hereditary syndromes such as Lynch syndrome or familial adenomatous polyposis have a significantly higher risk. In these populations, preventive strategies are critical for reducing the incidence and mortality of colorectal cancer. This review provides an overview of current preventive strategies for individuals at increased risk of colorectal cancer due to familial or hereditary factors. The manuscript includes a discussion of risk assessment and genetic testing, highlighting the importance of identifying at-risk individuals and families. This review describes various preventive measures, including surveillance colonoscopy, chemoprevention, and prophylactic surgery, and their respective benefits and limitations. Together, this work highlights the importance of preventive strategies in familial and hereditary colorectal cancer.
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Affiliation(s)
- Zachariah H Foda
- The Sidney Kimmel Comprehensive Cancer Center and Department of Medicine, Division of Gastroenterology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Pooja Dharwadkar
- Division of Gastroenterology, Department of Medicine, University of California, San Francisco, CA, USA
| | - Bryson W Katona
- Division of Gastroenterology and Hepatology, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA.
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10
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Nguyen HT, Lu YT, Tran DH, Tieu BL, Le KT, Pham TVN, Do TTT, Truong DK, Giang H, Tang HS. Prevalence and genetic spectrum associated with hereditary colorectal cancer syndromes, the need to improve cancer risk awareness, and family cascade testing in Vietnam. Fam Cancer 2023; 22:449-458. [PMID: 37516717 DOI: 10.1007/s10689-023-00344-1] [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] [Received: 01/31/2023] [Accepted: 07/09/2023] [Indexed: 07/31/2023]
Abstract
In Vietnam, colorectal cancer is one of the top diagnosed cancers, with 5-10% originating from inherited mutations. This study aims to define the mutation spectrum associated with hereditary colorectal cancer syndromes (HCCS) in Vietnam, evaluate the influence of genetic testing on carriers' awareness, and also investigate the barriers in familial testing. Genetic test reports were collected to identify HCCS cases, then cases underwent a survey investigating self-risk and familial-risk awareness, proactive cancer screening, and familial testing barriers. Participant characteristics, mutation prevalence, and results from the survey were descriptively analyzed and reported. Of all genetic test results, 3% (49/1632) were identified with mutations related to HCCS. Over 77% of them belonged to Lynch syndrome. PMS2 appeared to be the gene with the highest mutation frequency, while MLH1 was the lowest. 44% of cases further undertook cancer screening tests, and 48% of cases' families had uptake genetic testing. The biggest barrier of familial members for not taking genetic test was psychological reasons (fear, not being interested, or not feeling necessary). This study provided new evidence for HCCS mutation spectrum in Vietnamese population and the success in promoting cascade test in high-risk family members through financial and technical support. Also, study has suggested the needs of an innovative genetic testing process focusing on the quality of pre-and post-test consultancy, an increase in follow-ups, and the change in policy for permission of contacting relatives directly to improve the rate of cascade testing and proactive cancer screening.
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Affiliation(s)
| | - Y-Thanh Lu
- Medical Genetics Institute, Ho Chi Minh City, Vietnam
- Gene Solutions, Ho Chi Minh City, Vietnam
| | - Duc-Huy Tran
- University Medical Center, Ho Chi Minh City, Vietnam
| | - Ba-Linh Tieu
- Medical Genetics Institute, Ho Chi Minh City, Vietnam
- Gene Solutions, Ho Chi Minh City, Vietnam
| | - Kien-Trung Le
- University Medical Center, Ho Chi Minh City, Vietnam
| | | | | | | | - Hoa Giang
- Medical Genetics Institute, Ho Chi Minh City, Vietnam.
- Gene Solutions, Ho Chi Minh City, Vietnam.
| | - Hung-Sang Tang
- Medical Genetics Institute, Ho Chi Minh City, Vietnam.
- Gene Solutions, Ho Chi Minh City, Vietnam.
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11
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van Liere ELSA, Jacobs IL, Dekker E, Jacobs MAJM, de Boer NKH, Ramsoekh D. Colonoscopy surveillance in Lynch syndrome is burdensome and frequently delayed. Fam Cancer 2023; 22:403-411. [PMID: 37171677 PMCID: PMC10176312 DOI: 10.1007/s10689-023-00333-4] [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: 02/21/2023] [Accepted: 04/18/2023] [Indexed: 05/13/2023]
Abstract
Individuals with Lynch syndrome have an increased colorectal cancer risk, hence, biennial colonoscopy surveillance is recommended. We aimed to investigate patients' perception and preferences regarding surveillance, and to further explore compliance behaviour. Individuals with Lynch syndrome received a validated survey evaluating experiences of their three most recent colonoscopies. Individuals were non-compliant to surveillance if the interval between colonoscopies differed ≥ 6 months from the recommended interval. In total, 197 of 291 (68%) invited individuals returned the survey. They mostly underwent colonoscopy biennially (99%), under mild sedation (79%) and with bowel preparation performed by Moviprep® (99%). Surveillance was perceived as impacting quality of life in 21%, and as moderately to extremely burdensome in 57%, particularly in those below age 40. To lower the burden, patients prioritised improvements in volume and taste of bowel preparation, laxation-related bowel movements, waiting times, and a more personal and respectful approach of endoscopic staff. Additionally, many individuals (60%) would favour less-invasive surveillance modalities such as biomarkers. In total, 28% of individuals had delayed colonoscopy surveillance, predominantly for patient-related reasons. An additional 10% considered quitting/postponing surveillance. Upon multivariable analysis, patient-related delay was associated with low and medium education, history of ≤ 4 colonoscopies and having no hospital recall-system. Colonoscopy surveillance in Lynch syndrome is often experienced as burdensome, and frequently delayed. We identified determinants of surveillance behaviour in this population, and present potential interventions to reduce the burden and non-compliance rates.
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Affiliation(s)
- Elsa L S A van Liere
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands.
- Amsterdam Gastroenterology Endocrinology Metabolism (AGEM) Research Institute, Amsterdam, The Netherlands.
- School of Medicine, Vrije Universiteit, Amsterdam, The Netherlands.
| | - Imke L Jacobs
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- School of Medicine, Vrije Universiteit, Amsterdam, The Netherlands
| | - Evelien Dekker
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center location University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Maarten A J M Jacobs
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
| | - Nanne K H de Boer
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism (AGEM) Research Institute, Amsterdam, The Netherlands
- School of Medicine, Vrije Universiteit, Amsterdam, The Netherlands
| | - Dewkoemar Ramsoekh
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Center location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Gastroenterology Endocrinology Metabolism (AGEM) Research Institute, Amsterdam, The Netherlands
- School of Medicine, Vrije Universiteit, Amsterdam, The Netherlands
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12
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Sleiman J, Farha N, Beard J, Bena J, Morrison S, Milicia S, Heald B, Kalady MF, Church J, Liska D, Mankaney G, Burke CA. Incidence and prevalence of advanced colorectal neoplasia in Lynch syndrome. Gastrointest Endosc 2023; 98:412-419.e8. [PMID: 37031913 DOI: 10.1016/j.gie.2023.04.001] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/24/2023] [Accepted: 04/04/2023] [Indexed: 04/11/2023]
Abstract
BACKGROUND AND AIMS Lynch syndrome (LS) is the most common hereditary cause of colorectal cancer (CRC) and endometrial cancer (EC). Although colonoscopy reduces CRC in LS, the protection is variable. We assessed the prevalence and incidence of neoplasia in LS during surveillance colonoscopy in the United States and factors associated with advanced neoplasia. METHODS Patients with LS undergoing ≥1 surveillance colonoscopy and with no personal history of invasive CRC or colorectal surgery were included. Prevalent and incident neoplasia was defined as occurring <6 months before and ≥6 months after germline diagnosis of LS, respectively. We assessed advanced adenoma (AA), CRC, and the impact of mismatch repair pathogenic variant (PV) and typical LS cancer history (personal history of EC and/or family history of EC/CRC) on outcome. RESULTS A total of 132 patients (inclusive of 112 undergoing prevalent and incident surveillance) were included. The median examination interval and duration of prevalent and incident surveillance was .88 and 1.06 years and 3.1 and 4.6 years, respectively. Prevalent and incident AA were detected in 10.7% and 6.1% and invasive CRC in 0% and 2.3% of patients. All incident CRC occurred in MSH2 and MLH1 PV carriers and only 1 (.7%) while under surveillance in our center. AAs were detected in both LS cancer history cohorts and represented in all PVs. CONCLUSIONS In a U.S. cohort of LS, advanced neoplasia rarely occurred over annual surveillance. CRC was diagnosed only in MSH2/MLH1 PV carriers. AAs occurred regardless of PV or LS cancer history. Prospective studies are warranted to confirm our findings.
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Affiliation(s)
- Joseph Sleiman
- Division of Gastroenterology, Hepatology and Nutrition at University of Pittsburgh School of Medicine, Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Natalie Farha
- Department of Gastroenterology, Hepatology and Nutrition
| | - Jonathan Beard
- Section of Gastroenterology and Hepatology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - James Bena
- Department of Quantitative Health Science
| | | | - Susan Milicia
- Department of Colorectal Surgery; Sanford R. Weiss, M.D. Center for Hereditary Colorectal Neoplasia
| | - Brandie Heald
- Sanford R. Weiss, M.D. Center for Hereditary Colorectal Neoplasia; Department of Genomic Medical Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Matthew F Kalady
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - James Church
- Department of Surgery, Division of Colorectal Surgery & Inflammatory Bowel Disease Center, Columbia University Medical Center, Herbert Irving Pavilion, New York, New York, USA
| | - David Liska
- Department of Colorectal Surgery; Sanford R. Weiss, M.D. Center for Hereditary Colorectal Neoplasia
| | - Gautam Mankaney
- Gastroenterology and Hepatology, Virginia Mason Franciscan Health, Seattle, Washington, USA
| | - Carol A Burke
- Department of Gastroenterology, Hepatology and Nutrition; Department of Colorectal Surgery; Sanford R. Weiss, M.D. Center for Hereditary Colorectal Neoplasia.
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13
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Lau-Min KS, Bleznuck J, Wollack C, McKenna DB, Long JM, Hubert AP, Johnson M, Rochester SE, Constantino G, Dudzik C, Doucette A, Wangensteen K, Domchek SM, Landgraf J, Chen J, Nathanson KL, Katona BW. Development of an Electronic Health Record-Based Clinical Decision Support Tool for Patients With Lynch Syndrome. JCO Clin Cancer Inform 2023; 7:e2300024. [PMID: 37639653 PMCID: PMC10857752 DOI: 10.1200/cci.23.00024] [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: 02/15/2023] [Revised: 04/22/2023] [Accepted: 07/12/2023] [Indexed: 08/31/2023] Open
Abstract
PURPOSE To develop an electronic health record (EHR)-based clinical decision support (CDS) tool to promote guideline-recommended cancer risk management among patients with Lynch syndrome (LS), an inherited cancer syndrome that confers an increased risk of colorectal and other cancer types. MATERIALS AND METHODS We conducted a cross-sectional study to determine the baseline prevalence and predictors of guideline-recommended colonic surveillance and annual genetics program visits among patients with LS. Multivariable log-binomial regressions estimated prevalence ratios (PRs) of cancer risk management adherence by baseline sociodemographic and clinical characteristics. These analyses provided rationale for the development of an EHR-based CDS tool to support patients and clinicians with LS-related endoscopic surveillance and annual genetics program visits. The CDS leverages an EHR platform linking discrete genetic data to LS Genomic Indicators, in turn driving downstream clinician- and patient-facing CDS. RESULTS Among 323 patients with LS, cross-sectional adherence to colonic surveillance and annual genetics program visits was 69.3% and 55.4%, respectively. Patients with recent electronic patient portal use were more likely to be adherent to colonic surveillance (PR, 1.67; 95% CI, 1.11 to 2.52). Patients more recently diagnosed with LS were more likely to be adherent to annual genetics program visits (PR, 0.58; 95% CI, 0.44 to 0.76 for 2-4 years; PR, 0.62; 95% CI, 0.51 to 0.75 for ≥4 compared with <2 years). Our EHR-based CDS tool is now active for 421 patients with LS throughout our health system. CONCLUSION We have successfully developed an EHR-based CDS tool to promote guideline-recommended cancer risk management among patients with LS.
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Affiliation(s)
- Kelsey S. Lau-Min
- Division of Hematology/Oncology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| | - Joseph Bleznuck
- Information Services Applications, Penn Medicine, University of Pennsylvania, Philadelphia, PA
| | - Colin Wollack
- Information Services Applications, Penn Medicine, University of Pennsylvania, Philadelphia, PA
| | - Danielle B. McKenna
- Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jessica M. Long
- Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Anna P. Hubert
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Mariah Johnson
- Department of Medical Ethics and Health Policy, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Shavon E. Rochester
- Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Gillain Constantino
- Division of Gastroenterology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Christina Dudzik
- Division of Gastroenterology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Abigail Doucette
- Department of Radiation Oncology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Kirk Wangensteen
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Susan M. Domchek
- Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jeffrey Landgraf
- Information Services Applications, Penn Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jessica Chen
- Information Services Applications, Penn Medicine, University of Pennsylvania, Philadelphia, PA
| | - Katherine L. Nathanson
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Bryson W. Katona
- Division of Gastroenterology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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14
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Aronson M, Gryfe R, Choi YH, Semotiuk K, Holter S, Ward T, Gallinger S, Cohen Z, Briollais L. Evaluating colonoscopy screening intervals in patients with Lynch syndrome from a large Canadian registry. J Natl Cancer Inst 2023; 115:778-787. [PMID: 36964717 PMCID: PMC10323893 DOI: 10.1093/jnci/djad058] [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: 12/14/2022] [Revised: 02/28/2023] [Accepted: 03/20/2023] [Indexed: 03/26/2023] Open
Abstract
BACKGROUND Lynch syndrome (LS) screening guidelines originally recommended colonoscopy every 1 to 2 years, beginning between the ages of 20 and 25 years. Recent studies have questioned the benefits of these short screening intervals in preventing colorectal cancer (CRC). Our goal is to determine how colonoscopy screening intervals impact CRC in patients with LS. METHODS We analyzed the demographics, screening practices, and outcomes of patients with LS identified through the clinic based Familial Gastrointestinal Cancer Registry at the Zane Cohen Centre, Sinai Health System, Toronto, Canada. RESULTS A total of 429 patients with LS were identified with median follow-up of 9.2 years; 44 developed CRC. We found a positive trend between shorter screening intervals and the number of adenomas detected during colonoscopy. Any new adenoma detected at screening decreased 10-year CRC incidence by 11.3%. For MLH1 carriers, a screening interval of 1-2 years vs 2-3 years led to a 20-year cumulative CRC risk reduction of 28% and 14% in females and males, respectively. For MSH2 carriers, this risk reduction was 29% and 17%, respectively, and for male MSH6 carriers 18%. Individuals without any adenomas detected (53.4% of LS carriers) had an increased 20-year CRC risk of 25.7% and 57.2% for women and men, respectively, compared with those diagnosed with adenomas at screening. CONCLUSIONS The recommended colonoscopy screening interval of 1-2 years is efficient at detecting adenomas and reducing CRC risk. The observation that 53.4% of LS patients never had an adenoma warrants further investigation about a possible adenoma-free pathway.
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Affiliation(s)
- Melyssa Aronson
- Zane Cohen Centre, Sinai Health System and Faculty of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Robert Gryfe
- Department of Surgery, University of Toronto, Toronto, ON, Canada
| | - Yun-Hee Choi
- Department of Epidemiology and Biostatistics, Western University, London, ON, Canada
| | - Kara Semotiuk
- Zane Cohen Centre, Sinai Health System and Faculty of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Spring Holter
- Zane Cohen Centre, Sinai Health System, Toronto, ON, Canada
| | - Thomas Ward
- Zane Cohen Centre, Sinai Health System and Faculty of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Steve Gallinger
- Hepatobiliary/Pancreatic Surgical Oncology Program, University Health Network and Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, ON, Canada
| | - Zane Cohen
- Zane Cohen Centre, Sinai Health System and Termerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Laurent Briollais
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System and Biostatistics Division, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
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15
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Nugroho PP, Ghozali SAS, Buchanan DD, Pisano MI, Reece JC. Risk of cancer in individuals with Lynch-like syndrome and their families: a systematic review. J Cancer Res Clin Oncol 2023; 149:25-46. [PMID: 36251064 PMCID: PMC9889410 DOI: 10.1007/s00432-022-04397-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/05/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Lynch-like syndrome (LLS) tumors have similar clinicopathological features to Lynch syndrome (LS) tumors but have no identifiable pathogenic germline mismatch repair gene variant. However, cancer risks in LLS patients and first-degree relatives (FDRs) are not well defined. METHODS To clarify LLS-associated cancer risks, a systematic review of all studies examining all cancer risks in LLS was performed. Searching of Medline, Embase, Pubmed, Cochrane and CINAHL databases and reference/citation checking identified relevant studies published between January 1, 1980 and February 11, 2021. Joanna Briggs Institute Appraisal Tools assessed the risk of bias. RESULTS Six studies (five cohort/one cross-sectional) were eligible for study inclusion. One study found no difference in colorectal cancer (CRC) incidence between LLS and LS patients or CRC risks at aged 70 years. Three studies found CRC incidence in LLS FDRs was higher than the general population but lower than LS FDRs. Two studies showed no difference in CRC diagnosis age between LLS patients and LS patients. Endometrial cancer risks in LLS patients were higher than the general population but lower than LS patients. CONCLUSION Evidence of elevated CRC risks in LLS patients and FDRs supports increased colonoscopy surveillance strategies for LLS patients and FDRs in line with current recommendations for LS. Due to heterogeneity amongst LLS populations, extended intervals between screening may be advised for low-risk families. Studies to resolve the molecular characterization and definition of LLS are needed to clarify cancer risks associated with LLS which in turn may individualize surveillance strategies for LLS patients and families.
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Affiliation(s)
- Pandu P Nugroho
- Faculty of Medicine, Universitas Indonesia, Depok, West Java, Indonesia
- Melbourne Medical School, The University of Melbourne, Parkville, VIC, Australia
| | - Siti Alyaa S Ghozali
- Faculty of Medicine, Universitas Indonesia, Depok, West Java, Indonesia
- Melbourne Medical School, The University of Melbourne, Parkville, VIC, Australia
| | - Daniel D Buchanan
- Colorectal Oncogenomics Group, Department of Clinical Pathology, Melbourne Medical School, The University of Melbourne, Parkville, VIC, Australia
- University of Melbourne Centre for Cancer Research, Parkville, VIC, Australia
- Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Parkville, VIC, Australia
| | - Mia I Pisano
- Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Jeanette C Reece
- Neuroepidemiology Unit, Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Level 3 207 Bouverie Street, Parkville, VIC, 3010, Australia.
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16
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Semenova AB, Byakhova MM, Makarova MV, Galkin VN, Nemtsova MV, Chernevskiy DK, Danishevich AM, Shatalov VG, Babkina AV, Popova NG, Gadzhieva SM. [The structure of pathogenic germline variants in colorectal cancer in Moscow patients]. Arkh Patol 2023; 85:16-25. [PMID: 38010635 DOI: 10.17116/patol20238506116] [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: 11/29/2023]
Abstract
OBJECTIVE Describe the structure of pathogenic germline variants and clinical and anatomical features in colorectal cancer patients in Moscow. MATERIAL AND METHODS The whole genome sequencing results of patients with suspected hereditary cancer syndrome were evaluated. All identified genetic variants were validated using Sanger sequencing. RESULTS The study included 238 patients with colorectal cancer, 41/238 (17.2%) patients have pathogenic germline variants associated with hereditary cancer syndromes or increased cancer risk. Lynch syndrome accounts for 8% of all colorectal cancer cases (19/238), and familial adenomatous polyposis - 1.7% (4/238). 5 new genetic variants were described for the first time in a Russian colorectal cancer patients: MLH1 c.1921dup (p.Leu641fs), APC c.2929C>T (p.Gln977Ter), PMS2 c.327del (p.Ala110LeufsTer2), MSH2 c.1857dup (p. Val620CysfsTer24), ATM c.895G>T (p.Glu299Ter). In 197 of 238 patients, no significant variants were identified or variants with an uncertain clinical underlying cause were identified. CONCLUSION According to the results of the study, an earlier manifestation of a malignant neoplasm and a more frequent occurrence of high-grade carcinomas in the presence of pathogenic germline mutations were noted compared to the group of patients without clinically significant varianrs, while in the group with identified mutations, the frequency of regional and distant metastasis was not increased.
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Affiliation(s)
- A B Semenova
- City clinical oncology hospital No. 1, Moscow, Russia
| | - M M Byakhova
- City clinical oncology hospital No. 1, Moscow, Russia
| | | | - V N Galkin
- City clinical oncology hospital No. 1, Moscow, Russia
| | | | | | - A M Danishevich
- Moscow Clinical Scientific and Practical Center named after A.S. Loginov of the Department of Health of the City of Moscow, Moscow, Russia
| | - V G Shatalov
- City clinical oncology hospital No. 1, Moscow, Russia
| | - A V Babkina
- City clinical oncology hospital No. 1, Moscow, Russia
| | - N G Popova
- City clinical oncology hospital No. 1, Moscow, Russia
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17
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Bu R, Siraj AK, Parvathareddy SK, Iqbal K, Azam S, Qadri Z, Al-Rasheed M, Haqawi W, Diaz M, Alobaisi K, Annaiyappanaidu P, Siraj N, AlHusaini H, Alomar O, Al-Badawi IA, Al-Dayel F, Al-Kuraya KS. Lynch Syndrome Identification in Saudi Cohort of Endometrial Cancer Patients Screened by Universal Approach. Int J Mol Sci 2022; 23:ijms232012299. [PMID: 36293153 PMCID: PMC9603045 DOI: 10.3390/ijms232012299] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 12/09/2022] Open
Abstract
Lynch syndrome (LS) is the most common cause of inherited endometrial cancer (EC). The prevalence and molecular characteristic of LS in Middle Eastern women with EC have been underexplored. To evaluate the frequency of LS in a cohort of EC patients from Saudi Arabia, a total of 436 EC cases were screened utilizing immunohistochemistry (IHC), MLH1 promoter methylation analysis and next-generation sequencing technology. A total of 53 of 436 (12.2%) ECs were classified as DNA mismatch repair-deficient (dMMR). MLH1 promoter hypermethylation was detected in 30 ECs (6.9%). Three ECs (0.7%) were found to be LS harboring germline pathogenic variants (PVs)/likely pathogenic variants (LPVs): two in the MSH2 gene and one in the MSH6 gene. Three ECs (0.7%) were Lynch-like syndrome (LLS) carrying double somatic MSH2 PVs/LPVs. Seven cases were found to have variants of uncertain significance in cancer-related genes other than MMR genes. Our results indicate that LS prevalence is low among Saudi EC patients and LLS is as common as LS in this ethnicity. Our findings could help in better understanding of the prevalence and mutational spectrum of this syndrome in Saudi Arabia, which may help in defining best strategies for LS identification, prevention and genetic counseling for EC patients.
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Affiliation(s)
- Rong Bu
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Abdul K. Siraj
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Sandeep Kumar Parvathareddy
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Kaleem Iqbal
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Saud Azam
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Zeeshan Qadri
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Maha Al-Rasheed
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Wael Haqawi
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Mark Diaz
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Khadija Alobaisi
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Padmanaban Annaiyappanaidu
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Nabil Siraj
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Hamed AlHusaini
- Department of Medical Oncology, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Osama Alomar
- Department of Obstetrics-Gynecology, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Ismail A. Al-Badawi
- Department of Obstetrics-Gynecology, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
| | - Fouad Al-Dayel
- Department of Pathology, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Khawla S. Al-Kuraya
- Human Cancer Genomic Research, Research Center, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
- Correspondence: ; Tel.: +966-1-205-5167
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18
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Che Jalil NA, Othman NH, Wan Abdul Rahman WF, Zakaria AD, Samsudin AHZ, Mohd Nafi SN, Mazuki NAN. Colorectal cancer in patient younger than 50-year-old in Kelantan: Two case reports. Malays J Pathol 2022; 44:285-290. [PMID: 36043592] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Although young-onset colorectal cancer (CRC) is commonly linked to genetic predispositions such as Lynch syndrome, there has been an increasing trend in the prevalence of sporadic type youngonset CRC. We highlighted two cases of young patients diagnosed with CRC. Both patients came at the late stage of presentation with right sided colon tumour and local lymph nodes involvement. Loss of MLH1 expression with positive BRAF V600E was seen on immunohistochemistry staining. Additionally, they have no chronic disease or familial history of malignancy. The follow-up surveillance CT scan and the surveillance colonoscopy of case 1 showed no local recurrence and distant metastasis. However, another patient defaulted on the subsequent follow-up. In this report, we review the clinicopathological characteristics of these two cases and discuss the importance of the screening for the BRAF V600E and the four MMR proteins to characterise the sporadic and hereditary subgroups of young-onset CRC.
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Affiliation(s)
- N A Che Jalil
- Universiti Sains Malaysia, School of Medical Sciences, Department of Pathology, Health Campus, Kubang Kerian, Kelantan, Malaysia.
| | - N H Othman
- Universiti Sains Malaysia, School of Medical Sciences, Department of Pathology, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - W F Wan Abdul Rahman
- Universiti Sains Malaysia, School of Medical Sciences, Department of Pathology, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - A D Zakaria
- Universiti Sains Malaysia, School of Medical Sciences, Department of Surgery, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - A H Z Samsudin
- Universiti Sains Malaysia, School of Medical Sciences, Department of Radiology, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - S N Mohd Nafi
- Universiti Sains Malaysia, School of Medical Sciences, Department of Pathology, Health Campus, Kubang Kerian, Kelantan, Malaysia
| | - N A N Mazuki
- Hospital Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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19
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Durhuus JA, Therkildsen C, Kallemose T, Nilbert M. Colorectal cancer in adolescents and young adults with Lynch syndrome: a Danish register-based study. BMJ Open 2021; 11:e053538. [PMID: 34911717 PMCID: PMC8679060 DOI: 10.1136/bmjopen-2021-053538] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
OBJECTIVE To assess clinicopathological predictors and prognosis in early-onset colorectal cancer (CRC) in Lynch syndrome with comparison to patients diagnosed from age 40 and up. DESIGN National, retrospective register-based case-control study. SETTING Danish national hereditary CRC register. PARTICIPANTS Individuals with Lynch syndrome diagnosed with CRC from January 1950 to June 2020. The analysis was based on 215 early-onset CRCs diagnosed between 15 and 39 years of age and 574 CRCs diagnosed at age 40-88 years. MAIN OUTCOME MEASURES Clinical and histopathological characteristics and survival. Confounding variables were analysed by Cox analysis. RESULTS 27.2% of the tumours in the Danish Lynch syndrome cohort were diagnosed under age 40. Disease-predisposing alterations in MLH1 and MSH2 were overrepresented in the age 15-39 cohort compared with patients diagnosed over age 40. CRCs diagnosed under age 40 showed an adverse stage distribution with 36.2% stage III-IV tumours compared with 25.8% in the over age 40 group. However, young patients diagnosed with early-stage tumours did have a significantly better prognosis compared with early-stage tumours in the older age group. CONCLUSIONS Early-onset CRC in Lynch syndrome is primarily linked to alterations in MLH1 and MSH2 and displays an adverse stage distribution. These observations serve as a reminder of surveillance, symptom awareness and rapid diagnostic handling of CRC in young adults with Lynch syndrome.
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Affiliation(s)
- Jon Ambæk Durhuus
- Department of Clinical Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Christina Therkildsen
- Department of Clinical Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
- The Danish HNPCC Register, Gastro Unit, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Thomas Kallemose
- Department of Clinical Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
| | - Mef Nilbert
- Department of Clinical Research, Copenhagen University Hospital - Amager and Hvidovre, Copenhagen, Denmark
- Danish Cancer Society Research Center, Copenhagen, Denmark
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20
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Petelin L, Trainer AH. Exploring Gene-Specific Guidelines for Risk Management of Gynecological Cancer in Lynch Syndrome. JAMA Netw Open 2021; 4:e2124384. [PMID: 34499138 DOI: 10.1001/jamanetworkopen.2021.24384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Lara Petelin
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- University of Melbourne, Melbourne, Victoria, Australia
- Daffodil Centre, The University of Sydney, a joint venture with Cancer Council New South Wales, Sydney, New South Wales, Australia
| | - Alison H Trainer
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
- University of Melbourne, Melbourne, Victoria, Australia
- Royal Melbourne Hospital, Melbourne, Victoria, Australia
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21
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Soualhi A, Rammant E, George G, Russell B, Enting D, Nair R, Van Hemelrijck M, Bosco C. The incidence and prevalence of upper tract urothelial carcinoma: a systematic review. BMC Urol 2021; 21:110. [PMID: 34404373 PMCID: PMC8369798 DOI: 10.1186/s12894-021-00876-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/05/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Upper tract urothelial carcinoma (UTUC) is a rare urological cancer that is still an important public health concern in many areas around the world. Although UTUC has been linked to a number of risk factors, to our knowledge no systematic review has been published on the overall incidence and prevalence of de-novo UTUC. This review aimed to examine the global epidemiology of UTUC to provide clinicians and public health specialists a better understanding of UTUC. METHODS A systematic search was conducted on MEDLINE, Embase, and the Web of Science using a detailed search strategy. Observational epidemiological studies describing the incidence and prevalence of de-novo UTUC in adults were included, and the Joanna Briggs Institute checklist was used for critical appraisal and data extraction of the studies selected. RESULTS The systematic search identified 3506 papers, of which 59 papers were included for qualitative synthesis. The studies selected included data ranging from the years 1943 to 2018. A comprehensive qualitative synthesis of the data was performed. UTUC incidence generally varied according to age (higher with increasing age), sex (unclear), race (unclear), calendar time (increased, stable, or decreased according to region), geographical region (higher in Asian countries), occupation (higher in seamen and printers), and other population characteristics. Prevalence was only reported by one study, which showed UTUC to have the highest incidence of the rare urogenital cancers in Europe. CONCLUSION This systematic review highlights an increased incidence of UTUC in certain groups, including increasing age and certain occupations such as seamen. The incidence of UTUC also varies between certain geographical regions. The trend of UTUC incidence for sex, race, and calendar time is less clear due to a wide variety of metrics used by the studies identified. More studies are also required on the prevalence of UTUC to understand its disease burden. Trial registration This review was registered on PROSPERO (registration number CRD42019134255).
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Affiliation(s)
| | - Elke Rammant
- Translational Oncology and Urology Research, School of Cancer and Pharmaceutical Sciences, King’s College London, London, UK
- Department of Human Structure and Repair, Ghent University, Ghent, Belgium
| | - Gincy George
- Translational Oncology and Urology Research, School of Cancer and Pharmaceutical Sciences, King’s College London, London, UK
| | - Beth Russell
- Translational Oncology and Urology Research, School of Cancer and Pharmaceutical Sciences, King’s College London, London, UK
| | - Deborah Enting
- Department of Oncology, Guy’s Hospital, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Rajesh Nair
- Department of Urology, Guy’s Hospital, Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - Mieke Van Hemelrijck
- Translational Oncology and Urology Research, School of Cancer and Pharmaceutical Sciences, King’s College London, London, UK
| | - Cecilia Bosco
- Translational Oncology and Urology Research, School of Cancer and Pharmaceutical Sciences, King’s College London, London, UK
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22
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International Mismatch Repair Consortium. Variation in the risk of colorectal cancer in families with Lynch syndrome: a retrospective cohort study. Lancet Oncol 2021; 22:1014-22. [PMID: 34111421 DOI: 10.1016/S1470-2045(21)00189-3] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/26/2021] [Accepted: 03/26/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND Existing clinical practice guidelines for carriers of pathogenic variants of DNA mismatch repair genes (Lynch syndrome) are based on the mean age-specific cumulative risk (penetrance) of colorectal cancer for all carriers of pathogenic variants in the same gene. We aimed to estimate the variation in the penetrance of colorectal cancer between carriers of pathogenic variants in the same gene by sex and continent of residence. METHODS In this retrospective cohort study, we sourced data from the International Mismatch Repair Consortium, which comprises 273 members from 122 research centres or clinics in 32 countries from six continents who are involved in Lynch syndrome research. Families with at least three members and at least one confirmed carrier of a pathogenic or likely pathogenic variant in a DNA mismatch repair gene (MLH1, MSH2, MSH6, or PMS2) were included. The families of probands with known de-novo pathogenic variants were excluded. Data were collected on the method of ascertainment of the family, sex, carrier status, cancer diagnoses, and ages at the time of pedigree collection and at last contact or death. We used a segregation analysis conditioned on ascertainment to estimate the mean penetrance of colorectal cancer and modelled unmeasured polygenic factors to estimate the variation in penetrance. The existence of unknown familial risk factors modifying colorectal cancer risk for Lynch syndrome carriers was tested by use of a Wald p value for the null hypothesis that the polygenic SD is zero. FINDINGS 5585 families with Lynch syndrome from 22 countries were eligible for the analysis. Of these, there were insufficient numbers to estimate penetrance for Asia and South America, and for those with EPCAM variants. Therefore, we used data (collected between July 11, 2014, and Dec 31, 2018) from 5255 families (1829 MLH1, 2179 MSH2, 798 MSH6, and 449 PMS2), comprising 79 809 relatives, recruited in 15 countries in North America, Europe, and Australasia. There was strong evidence of the existence of unknown familial risk factors modifying colorectal cancer risk for Lynch syndrome carriers (p<0·0001 for each of the three three continents). These familial risk factors resulted in a wide within-gene variation in the risk of colorectal cancer for men and women from each continent who all carried pathogenic variants in the same gene or the MSH2 c.942+3A>T variant. The variation was especially prominent for MLH1 and MSH2 variant carriers, depending on gene, sex and continent, with 7-56% of carriers having a colorectal cancer penetrance of less than 20%, 9-44% having a penetrance of more than 80%, and only 10-19% having a penetrance of 40-60%. INTERPRETATION Our study findings highlight the important role of risk modifiers, which could lead to personalised risk assessments for precision prevention and early detection of colorectal cancer for people with Lynch syndrome. FUNDING National Health and Medical Research Council, Australia.
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23
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Wijesiriwardhana P, Wetthasinghe K, Dissanayake VHW. Copy Number Variants Captured by the Array Comparative Genomic Hybridization in a Cohort of Patients Affected with Hereditary Colorectal Cancer in Sri Lanka: The First CNV Analysis Study of the Hereditary Colorectal Cancer in the Sri Lankan Population. Asian Pac J Cancer Prev 2021; 22:1957-1966. [PMID: 34181357 PMCID: PMC8418865 DOI: 10.31557/apjcp.2021.22.6.1957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/08/2021] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Hereditary non-polyposis colorectal cancer (HNPCC), is an autosomal dominant disorder characterized by the development of multiple cancer types. Molecular diagnosis of HNPCC requires the precise identification of pathogenic germline variants in DNA mismatch repair (MMR) genes. Next Generation Sequencing (NGS) is now the gold standard test in practice, to identify these variants. However, large genomic rearrangements (LGR) in cancer predisposing genes (CPGs) are missed by NGS. This may lead to underestimation of the frequency of the variants, misleading the genetic diagnosis and delaying intervention in high risk individuals. Hence this study was aimed at identifying the presence of large genomic alterations that could explain the missing heritable risk of colon cancer in affected patients with family history strongly suggestive of hereditary colorectal cancer in Sri Lanka. METHODS A cohort of six patients affected with hereditary colorectal cancer who tested negative for pathogenic variants in next generation sequencing studies was investigated using Sure Print G3 Human CGH 4x180K microarray platform. Agilent Genomic-Workbench-v7.0.4.0 software was used to identify the Copy Number Variants (CNV). Four healthy individuals (>55years) were used as controls. Annotations of the CNV regions which were observed were done using the database of Genomic Variants. RESULTS We identified 150 CNVs including regions of both genomic gains and losses in the patient cohort. There was no difference in the average number or the average genomic burden of CNVs identified in the patients versus the controls. CNVs were residing on the positions of 1q21.2, 2q37.3, 2p11.2-p11.1, 5q13.2, 6p12.3, 7q31.33, 7p14.1, 14q32.33, 15q11.1-11.2, 16p11.2, 22q11.22, 22q13.1 that were assessed by the array platform used in the study. CNVs in any of the well-known common CPG s or CNVs that reside on or in close proximity to genes corresponding to MMR pathway were not identified. We found several distinct pathways that have previously been identified as having a direct association with the progression of HNPCC. CONCLUSION This study shows that CNVs are likely contributors to the colorectal cancer predisposition in a small but significant proportion of patients affected with hereditary colorectal cancer in this cohort. Further studies have to perform to get a better understanding on the contribution of CNVs to the cancer predisposition in this cohort of patients in the Sri Lankan population.
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Affiliation(s)
- Prabhavi Wijesiriwardhana
- Department of Medical Laboratory Science, Faculty of Allied Health Sciences, University of Ruhuna, Sri Lanka.
- Human Genetics Unit, Faculty of Medicine, University of Colombo, Sri Lanka.
| | - Kalum Wetthasinghe
- Human Genetics Unit, Faculty of Medicine, University of Colombo, Sri Lanka.
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24
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Pluke KD, Kaestner L. Lessons from a pilot study of screening for upper tract urothelial cell carcinoma in Lynch syndrome. S AFR J SURG 2021; 59:65a-65d. [PMID: 34212574] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
BACKGROUND Lynch syndrome is a hereditary disorder, with a very high risk of developing colorectal carcinoma (CRC) and a predilection to develop other cancers, including upper tract urothelial carcinoma (UTUC). We aimed to assess the prevalence of UTUC in a Lynch syndrome cohort undergoing screening for CRC, to determine the need for a UTUC screening programme. METHODS Lynch syndrome patients were screened with urine dipstick for microscopic haematuria. Patients with confirmed microhaematuria were offered urine cytology, microscopy and culture, ultrasound (US) of their upper tracts and flexible cystoscopy. RESULTS Of the 89 patients screened, 86 had an MLH1 mutation and two had an MSH2 mutation. Eleven of the 12 patients who had microscopic haematuria were female. Ten patients had urinary tract infections. One patient had follicular cystitis and another had a simple renal cyst. No patients had hydronephrosis on ultrasound. All urine cytology specimens were negative for malignancy. CONCLUSION No cases of UTUC were detected in our cohort during this study. A more rational screening protocol in this group may be to screen patients for UTUC with known MSH2 mutations at an earlier age (over 35).
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Affiliation(s)
- K D Pluke
- Division of Urology, Department of Surgery, Groote Schuur Hospital, University of Cape Town, South Africa
| | - L Kaestner
- Division of Urology, Department of Surgery, Groote Schuur Hospital, University of Cape Town, South Africa
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25
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Monahan KJ, Lincoln A, East JE, Benton S, Burn J, DeSouza B, Hanson H, Lalloo F, McVeigh T, Rutter MD, Snape K, Thomas HJW, Sasieni P. Management strategies for the colonoscopic surveillance of people with Lynch syndrome during the COVID-19 pandemic. Gut 2021; 70:624-626. [PMID: 32571974 DOI: 10.1136/gutjnl-2020-321993] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 01/24/2023]
Affiliation(s)
- Kevin J Monahan
- The Lynch Syndrome and Family Cancer Clinic, St Mark's Hospital and Academic Institute, Harrow, London, UK
- Imperial College London, London, UK
| | - Anne Lincoln
- Comprehensive Cancer Centre, King's College London, London, UK
| | - James E East
- Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford, UK
| | - Sally Benton
- NHS Bowel Cancer Screening South of England Hub, Royal Surrey County Hospital NHS Foundation Trust, Guildford, Surrey, UK
| | - John Burn
- Institute of Human Genetics, Newcastle upon Tyne, UK
| | - Bianca DeSouza
- Clinical Genetics, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Helen Hanson
- Clinical Genetics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Fiona Lalloo
- Genetic Medicine, Central Manchester University Hospitals Foundation Trust, Manchester, UK
| | - Terri McVeigh
- Cancer Genetics Unit, Royal Marsden NHS Foundation Trust, London, UK
| | - Matthew D Rutter
- Gastroenterology, University Hospital of North Tees, Stockton-on-Tees, UK
- Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Katie Snape
- Clinical Genetics, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Huw J W Thomas
- The Lynch Syndrome and Family Cancer Clinic, St Mark's Hospital and Academic Institute, Harrow, London, UK
- Imperial College London, London, UK
| | - Peter Sasieni
- Comprehensive Cancer Centre, King's College London, London, UK
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26
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Loughrey MB, McGrath J, Coleman HG, Bankhead P, Maxwell P, McGready C, Bingham V, Humphries MP, Craig SG, McQuaid S, Salto-Tellez M, James JA. Identifying mismatch repair-deficient colon cancer: near-perfect concordance between immunohistochemistry and microsatellite instability testing in a large, population-based series. Histopathology 2021; 78:401-413. [PMID: 32791559 DOI: 10.1111/his.14233] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [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: 06/24/2020] [Revised: 07/30/2020] [Accepted: 08/10/2020] [Indexed: 12/12/2022]
Abstract
AIMS Establishing the mismatch repair (MMR) status of colorectal cancers is important to enable the detection of underlying Lynch syndrome and inform prognosis and therapy. Current testing typically involves either polymerase chain reaction (PCR)-based microsatellite instability (MSI) testing or MMR protein immunohistochemistry (IHC). The aim of this study was to compare these two approaches in a large, population-based cohort of stage 2 and 3 colon cancer cases in Northern Ireland. METHODS AND RESULTS The study used the Promega pentaplex assay to determine MSI status and a four-antibody MMR IHC panel. IHC was applied to tumour tissue microarrays with triplicate tumour sampling, and assessed manually. Of 593 cases with available MSI and MMR IHC results, 136 (22.9%) were MSI-high (MSI-H) and 135 (22.8%) showed abnormal MMR IHC. Concordance was extremely high, with 97.1% of MSI-H cases showing abnormal MMR IHC, and 97.8% of cases with abnormal IHC showing MSI-H status. Under-representation of tumour epithelial cells in samples from heavily inflamed tumours resulted in misclassification of several cases with abnormal MMR IHC as microsatellite-stable. MMR IHC revealed rare cases with unusual patterns of MMR protein expression, unusual combinations of expression loss, or secondary clonal loss of expression, as further illustrated by repeat immunostaining on whole tissue sections. CONCLUSIONS MSI PCR testing and MMR IHC can be considered to be equally proficient tests for establishing MMR/MSI status, when there is awareness of the potential pitfalls of either method. The choice of methodology may depend on available services and expertise.
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Affiliation(s)
- Maurice B Loughrey
- Department of Cellular Pathology, Belfast Health and Social Care Trust, Belfast, UK
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Jason McGrath
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
| | - Helen G Coleman
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Peter Bankhead
- Edinburgh Pathology/Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Perry Maxwell
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
| | - Claire McGready
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
- Northern Ireland Biobank, Health Sciences Building, Queen's University Belfast, Belfast, UK
| | - Victoria Bingham
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
| | - Matthew P Humphries
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
| | - Stephanie G Craig
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
| | - Stephen McQuaid
- Department of Cellular Pathology, Belfast Health and Social Care Trust, Belfast, UK
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
- Northern Ireland Biobank, Health Sciences Building, Queen's University Belfast, Belfast, UK
| | - Manuel Salto-Tellez
- Department of Cellular Pathology, Belfast Health and Social Care Trust, Belfast, UK
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
| | - Jacqueline A James
- Department of Cellular Pathology, Belfast Health and Social Care Trust, Belfast, UK
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, UK
- Precision Medicine Centre of Excellence, Queen's University Belfast, Belfast, UK
- Northern Ireland Biobank, Health Sciences Building, Queen's University Belfast, Belfast, UK
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Brouwer JGM, Newcomb PA, Bisseling TM, Figueiredo JC, Hopper JL, Jenkins MA, Koornstra JJ, Lindor NM, Vasen HFA, Win AK, Kampman E, van Duijnhoven FJB. Associations of Height With the Risks of Colorectal and Endometrial Cancer in Persons With Lynch Syndrome. Am J Epidemiol 2021; 190:230-238. [PMID: 33524116 PMCID: PMC8210745 DOI: 10.1093/aje/kwaa175] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 11/13/2022] Open
Abstract
People with Lynch syndrome (LS), who carry a pathogenic mutation in a DNA mismatch repair gene, have increased risks of colorectal cancer (CRC) and endometrial cancer (EC). A high reported variability in cancer risk suggests the existence of factors that modify cancer risk for persons with LS. We aimed to investigate the associations between height and CRC and EC risk for persons with LS using data from 2 large studies. Information on 1,115 men and 1,553 women with LS from the Colon Cancer Family Registry (1998–2007) and the GEOLynch Cohort Study (2006–2017) was harmonized. We used weighted Cox proportional hazards regression models with age on the time axis to estimate adjusted hazard ratios and 95% confidence intervals for each 5-cm increment in self-reported height. CRC was diagnosed in 947 persons during 65,369 person-years of observation, and 171 women were diagnosed with EC during 39,227 person-years. Height was not associated with CRC for either men (per 5-cm increment, hazard ratio (HR) = 1.00, 95% confidence interval (CI): 0.91, 1.11) or women (per 5-cm increment, HR = 1.01, 95% CI: 0.92, 1.11), nor was height associated with EC (per 5-cm increment, HR = 1.08, 95% CI: 0.94, 1.24). Hence, we observed no evidence for an association of height with either CRC or EC among persons with LS.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Fränzel J B van Duijnhoven
- Correspondence to Dr. Fränzel J. B. van Duijnhoven, Division of Human Nutrition and Health, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, the Netherlands (e-mail: )
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Vasen HFA. Progress Report: New insights into the prevention of CRC by colonoscopic surveillance in Lynch syndrome. Fam Cancer 2021; 21:49-56. [PMID: 33464460 DOI: 10.1007/s10689-020-00225-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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] [Received: 10/09/2020] [Accepted: 12/15/2020] [Indexed: 12/21/2022]
Abstract
Lynch syndrome is the most frequent hereditary colorectal cancer (CRC) syndrome, affecting approximately 1 in 300 in the Western population. It is caused by pathogenic variants in the mismatch repair (MMR) genes including MLH1, MSH2 (EPCAM), MSH6 and PMS2, and is associated with high risks of CRC, endometrial cancer and other cancers. In view of these risks, carriers of such variants are encouraged to participate in colonoscopic surveillance programs that are known to substantially improve their prognosis. In the last decade several important studies have been published that provide detailed cancer risk estimates and prognoses based on large numbers of patients. These studies also provided new insights regarding the pathways of carcinogenesis in CRC, which appear to differ depending on the specific MMR gene defect. In this report, we will discuss the implications of these new findings for the development of new surveillance protocols.
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Affiliation(s)
- Hans F A Vasen
- Department of Gastroenterology & Hepatology, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, The Netherlands.
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Yamamoto A, Mori Y, Suzuki O, Ishibashi K, Kamae N, Yoshida H, Hasegawa K, Fujiwara K, Eguchi H, Okazaki Y, Akagi K, Ishida H. [Cancer Risk in Lynch Syndrome-Associated Endometrial Cancer Patients and Their Relatives]. Gan To Kagaku Ryoho 2020; 47:2257-2259. [PMID: 33468926] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Endometrial cancer(EC)is often the sentinel cancer in women with Lynch syndrome(LS), but the actual incidence of EC as the sentinel cancer in patients with LS is not well-known in Japan. We investigated the history of malignancies and incidence of sentinel cancers in patients with LS-associated EC and their relatives. We examined 8 patients with LS-associated EC between 2005 and 2019. Five of them(63%)had suffered from a cancer other than EC, while 5(63%)had developed a cancer after EC. Seven patients(88%)had EC as the sentinel cancer, while 1(13%)developed colorectal cancer before EC. Among first-degree relatives(15 men and 23 women), 15(40%)had a history of cancer, of whom 7 were women (30%). Five women(22%)had EC, all sentinel. Among second-degree relatives(40 men, 44 women, 14 unknown), 16 (16%)had cancer. Four women(9%)had a history of cancer, of whom 2(5%)had EC, all sentinel. Although we only investigated a few LS cases, the importance of EC as the sentinel cancer was highlighted in Japanese women with LS.
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Affiliation(s)
- Azusa Yamamoto
- Dept. of Digestive Tract and General Surgery, Saitama Medical Center, Saitama Medical University
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Rosa RCA, Santis JO, Teixeira LA, Molfetta GA, Dos Santos JTT, Ribeiro VDS, Chahud F, Ribeiro-Silva A, Brunaldi MO, Silva WA, Ferraz VEDF. Lynch syndrome identification in a Brazilian cohort of endometrial cancer screened by a universal approach. Gynecol Oncol 2020; 159:229-238. [PMID: 32694065 DOI: 10.1016/j.ygyno.2020.07.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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] [Received: 06/03/2020] [Accepted: 07/07/2020] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To report the frequency of Lynch syndrome (LS) in a cohort of patients from Southeast Brazil bearing endometrial cancer (EC), using a tumor screening universal approach. METHODS A total of 242 endometrial carcinomas were screened by immunohistochemistry (IHC) and microsatellite instability (MSI) for detection of DNA mismatch repair deficiency (dMMR). MLH1 methylation was assessed to identify sporadic cases. Patients with dMMR tumors were recruited for germline variant analysis by next-generation sequencing of the MLH1, MSH2, MSH6, PMS2, and EPCAM genes. RESULTS Ninety-three out of 242 tumors (38.5%) were classified as dMMR based on MSI and IHC results. Of these, 54 cases were selected for germline analysis, and 37/54 (68.5%) were available for sequencing. Ten patients (10/37, 27%) harbored germline pathogenic or likely pathogenic variants, most of them in the MSH6 gene (4/10, 40%). Seven variants of uncertain significance were found. Eight novel germline variants were identified. The LS prevalence in our cohort was of at least 4.1%. LS patients presented lower mean age at cancer diagnosis compared with patients diagnosed with sporadic EC. Individuals with dMMR tumors, without germline pathogenic variants detected in LS-genes ("Lynch-like" syndrome), had an intermediate mean age at cancer diagnosis between LS and sporadic cases. CONCLUSION This is the first report of the LS prevalence in EC screened by a universal approach in Brazil. Our findings contribute to a better understanding of the mutational landscape of this syndrome in Brazil, which is relevant for improved identification, genetic counseling, prevention and control of cancer in LS.
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Affiliation(s)
- Reginaldo Cruz Alves Rosa
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Regional Blood Center at University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Jessica Oliveira Santis
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Regional Blood Center at University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Lorena Alves Teixeira
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Greice Andreotti Molfetta
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Regional Blood Center at University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | | | - Vanessa Dos Santos Ribeiro
- Inter-institutional Doctoral Program in Nursing, Ribeirão Preto College of Nursing, University of São Paulo, Ribeirão Preto, Brazil.
| | - Fernando Chahud
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Alfredo Ribeiro-Silva
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Mariângela Ottoboni Brunaldi
- Department of Pathology and Legal Medicine, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Wilson Araújo Silva
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Regional Blood Center at University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
| | - Victor Evangelista de Faria Ferraz
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; Center for Medical Genomics at Clinical Hospital of the Ribeirão Preto Medical School, University of São Paulo, Brazil.
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Baert L, Claes K, De Man M, Tate DJ, Geboes K. Surveillance recommendations for patients with Lynch syndrome and FAP : a monocentric study. Acta Gastroenterol Belg 2020; 83:399-405. [PMID: 33094586] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND STUDY AIMS The most important causes of hereditary colorectal cancer are Lynch syndrome (LS) and the adenomatous polyposis syndromes (familial adenomatous poly- posis syndrome or FAP, attenuated FAP or AFAP and MUTYH associated polyposis syndrome or MAP). The aim of this study was to investigate whether all patients with a hereditary syndrome within one center receive uniform advice regarding surveillance and treatment. PATIENTS AND METHODS A retrospective analysis was performed of all electronic patient health records of patients with LS, FAP, AFAP and MAP who received genetic counselling or were followed by a health care specialist at the University Hospital in Ghent. RESULTS Data from 122 patients were collected. For all patients, recommendations from the medical genetics department were highly consistent. Adherence to their recommendations was good within the center for the management of colon polyps. There was a lack of consistency in the screening and surveillance advice for other tumors in departments other than gastroenterology. Only 33 patients had systematic follow-up consultations to check results and organize surveillance. CONCLUSION Previously, small studies have suggested that patients with hereditary gastrointestinal cancer syndromes infrequently have surveillance as specified in the guidelines. This study shows almost uniform recommendations and good adherence for surveillance of the colon, but incomplete or contradictory advice for surveillance of other organs. The need for an integrated approach from a multidisciplinary team will only increase in the future, because more families with hereditary cancer are likely to be found due to the increased use of next generation sequencing in cancer diagnostics.
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Affiliation(s)
- L Baert
- AZ Delta Roeselare, Department of gastroenterology
| | - K Claes
- UZ Gent, Department of medical genetics
| | - M De Man
- UZ Gent, Department of gastroenterology, Belgium
| | - D J Tate
- UZ Gent, Department of gastroenterology, Belgium
| | - K Geboes
- UZ Gent, Department of gastroenterology, Belgium
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Abstract
Recent studies have suggested an increased risk of prostate cancer in men with Lynch syndrome driven by germline mutations in mismatch repair (MMR) genes. However, the incidence and clinical implication of MMR deficiency in sporadic prostate cancers remain poorly understood. We immunohistochemically stained for MLH1, MSH2, MSH6, and PMS2 in a set of tissue microarray consisting of 220 radical prostatectomy specimens and evaluated the relationship between loss of their expression and available clinicopathological features. MLH1, MSH2, MSH6, and PMS2 were lost in 2 (0.9%), 6 (2.7%), 37 (16.8%), and 27 (12.3%) prostate cancers, respectively. Loss of at least 1 MMR protein was identified in 50 (22.7%) cases. There were no statistically significant associations between MMR deficiency and patient age, family history of prostate cancer, Gleason score, or pT/pN stage. Nonetheless, the levels of preoperative prostate-specific antigen (PSA) were significantly (P = .015) higher in patients with MMR deficiency (mean ± SD: 9.12 ± 9.01 ng/mL) than in those without abnormal MMR (5.76 ± 3.17 ng/mL). There were 15 (6.8%) cases showing loss of at least 2 MMR proteins, which was not significantly associated with PSA level or tumor grade/stage. Additionally, 5 and 2 cases showed losses of at least 3 MMR proteins and all 4 proteins, respectively. Kaplan-Meier analysis revealed no significant associations between loss of MLH1 (P = .373), MSH2 (P = .348), MSH6 (P = .946), or PMS2 (P = .681), or at least 1 (P = .477), 2 (P = .486), or 3 (P = .352) MMR proteins and biochemical recurrence. Further analyses of the data on programmed death-ligand 1 (PD-L1) expression previously stained in the same set of tissue microarray demonstrated associations between loss of ≥2 MMR proteins and a higher rate of PD-L1 expression in cancer cells (17.2% vs 5.2%; P = .033) as well as between cases showing both loss of ≥1 MMR protein(s) and PD-L1 expression in tumor-infiltrating immune cells vs a higher risk of biochemical recurrence (P = .045). MMR protein loss was seen in a subset of prostate cancers. Interestingly, it was associated with significantly higher levels of PSA. Moreover, immunohistochemical detection of MMR proteins together with other proteins, such as PD-L1, might be helpful in predicting tumor recurrence following radical prostatectomy.
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Affiliation(s)
| | | | - Hiroshi Miyamoto
- Department of Pathology and Laboratory Medicine
- Department of Urology
- James P. Wilmot Cancer Institute, University of Rochester Medical Center, Rochester, NY
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Crosbie EJ, Ryan NAJ, Arends MJ, Bosse T, Burn J, Cornes JM, Crawford R, Eccles D, Frayling IM, Ghaem-Maghami S, Hampel H, Kauff ND, Kitchener HC, Kitson SJ, Manchanda R, McMahon RFT, Monahan KJ, Menon U, Møller P, Möslein G, Rosenthal A, Sasieni P, Seif MW, Singh N, Skarrott P, Snowsill TM, Steele R, Tischkowitz M, Evans DG. The Manchester International Consensus Group recommendations for the management of gynecological cancers in Lynch syndrome. Genet Med 2019; 21:2390-2400. [PMID: 30918358 PMCID: PMC6774998 DOI: 10.1038/s41436-019-0489-y] [Citation(s) in RCA: 129] [Impact Index Per Article: 25.8] [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] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 03/06/2019] [Indexed: 12/15/2022] Open
Abstract
PURPOSE There are no internationally agreed upon clinical guidelines as to which women with gynecological cancer would benefit from Lynch syndrome screening or how best to manage the risk of gynecological cancer in women with Lynch syndrome. The Manchester International Consensus Group was convened in April 2017 to address this unmet need. The aim of the Group was to develop clear and comprehensive clinical guidance regarding the management of the gynecological sequelae of Lynch syndrome based on existing evidence and expert opinion from medical professionals and patients. METHODS Stakeholders from Europe and North America worked together over a two-day workshop to achieve consensus on best practice. RESULTS Guidance was developed in four key areas: (1) whether women with gynecological cancer should be screened for Lynch syndrome and (2) how this should be done, (3) whether there was a role for gynecological surveillance in women at risk of Lynch syndrome, and (4) what preventive measures should be recommended for women with Lynch syndrome to reduce their risk of gynecological cancer. CONCLUSION This document provides comprehensive clinical guidance that can be referenced by both patients and clinicians so that women with Lynch syndrome can expect and receive appropriate standards of care.
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Affiliation(s)
- Emma J Crosbie
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary's Hospital, Manchester, UK.
- Directorate of Gynaecology, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK.
- Prevention Early Detection Theme, NIHR Biomedical Research Centre, The Christie NHS Foundation Trust, Manchester, UK.
| | - Neil A J Ryan
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary's Hospital, Manchester, UK
- Division of Evolution and Genomic Medicine, University of Manchester, St Mary's Hospital, Manchester, UK
| | - Mark J Arends
- Division of Pathology & Centre for Comparative Pathology, Cancer Research UK Edinburgh Centre, Institute of Genetics & Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Tjalling Bosse
- Pathology Department, Leiden University Medical Center, Leiden, the Netherlands
| | - John Burn
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | | | - Robin Crawford
- Department of Gynaecological Oncology, Addenbrookes Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Diana Eccles
- Faculty of Medicine, University of Southampton, University Hospital Southampton, Southampton, UK
| | - Ian M Frayling
- Institute of Cancer and Genetics, Cardiff University, Cardiff, UK
| | | | - Heather Hampel
- Division of Human Genetics, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Noah D Kauff
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, USA
| | - Henry C Kitchener
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary's Hospital, Manchester, UK
| | - Sarah J Kitson
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary's Hospital, Manchester, UK
| | - Ranjit Manchanda
- Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Raymond F T McMahon
- Department of Histopathology, Manchester University NHS Foundation Trust, Manchester, UK
| | | | - Usha Menon
- MRC Clinical Trials Unit at UCL, Institute of Clinical Trials and Methodology, London, UK
| | - Pål Møller
- Department of Tumor Biology, Institute of Cancer Research, The Norwegian Radium Hospital, part of Oslo University Hospital, Oslo, Norway
- Research Group Inherited Cancer, Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
- Center for Hereditary Tumors, Helios University Hospital Wuppertal, University of Witten-, Herdecke, Germany
| | - Gabriela Möslein
- Center for Hereditary Tumors, Helios University Hospital Wuppertal, University of Witten-, Herdecke, Germany
| | - Adam Rosenthal
- Department of Women's Cancer, UCL EGA Institute for Women's Health, University College London, London, UK
| | - Peter Sasieni
- School of Cancer and Pharmaceutical Sciences, Kings College London, London, UK
| | - Mourad W Seif
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary's Hospital, Manchester, UK
- Directorate of Gynaecology, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Naveena Singh
- Department of Cellular Pathology, Barts Health NHS Trust, London, UK
| | - Pauline Skarrott
- Lynch Syndrome UK, Linden House, 9/11 Main Street, Ingleton, Carnforth, UK
| | - Tristan M Snowsill
- Peninsula Technology Assessment Group (PenTAG), University of Exeter, Exeter, UK
- Health Economics Group, University of Exeter, Exeter, UK
| | - Robert Steele
- Division of Cancer, Medical Research Institute, Ninewells Hospital and Medical School, Dundee, UK
| | - Marc Tischkowitz
- Academic Laboratory of Medical Genetics, University of Cambridge, Cambridge, UK
- National Institute for Health Research Cambridge Biomedical Research Centre, Cambridge, UK
| | - D Gareth Evans
- Prevention Early Detection Theme, NIHR Biomedical Research Centre, The Christie NHS Foundation Trust, Manchester, UK
- Division of Evolution and Genomic Medicine, University of Manchester, St Mary's Hospital, Manchester, UK
- Manchester Centre for Genomic Medicine, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
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Stanich PP, Pearlman R, Hinton A, Gutierrez S, LaDuca H, Hampel H, Jasperson K. Prevalence of Germline Mutations in Polyposis and Colorectal Cancer-Associated Genes in Patients With Multiple Colorectal Polyps. Clin Gastroenterol Hepatol 2019; 17:2008-2015.e3. [PMID: 30557735 DOI: 10.1016/j.cgh.2018.12.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/18/2018] [Accepted: 12/07/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Guidelines recommend genetic testing of patients with 10 or more cumulative adenomatous polyps. However, little is known about the utility of these tests-especially for older patients. We aimed to determine the prevalence of pathogenic mutations in patients with multiple colorectal polyps, stratified by age. METHODS We performed a cross-sectional study of patients with 10 or more colorectal polyps who underwent multigene panel testing (MGPT) from March 2012 through December 2016 (n = 3789). Demographic, clinical and family history data were obtained from test requisition forms and accompanying clinic notes, pedigrees, and pathology reports. Subjects were stratified based on reported polyp histology. Primary outcomes of interest were gene mutations associated with adenomatous polyposis, hamartomatous polyposis, and non-polyposis colorectal cancer syndromes. RESULTS Based on MGPT, the prevalence of mutations in adenomatous polyposis genes decreased with increasing age in all polyp count groups in the adenoma cohort (P < .001 for 10-19, 20-99, and 100 or more polyps). The prevalence of mutations in all genes of interest also decreased with increasing age but remained above 5% in all age and polyp cohorts. Increased age at testing was associated with a significantly lower risk of a mutation in any gene of interest with multivariate analysis. In the hamartoma cohort, the prevalence of mutations in hamartomatous polyposis genes was high regardless of polyp count (40% with 10-19 polyps, 72.1% with 20-99 polyps, and 50% with 100 or more polyps). CONCLUSION Our findings support continued genetic testing of patients with 10 or more polyps including adenomas and/or hamartomas. MGPT that includes analysis of polyposis and non-polyposis colorectal cancer genes should be considered for these patients given the high proportion with mutations (above 5%) in all age groups.
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Affiliation(s)
- Peter P Stanich
- Division of Gastroenterology, Hepatology and Nutrition, Ohio State University Wexner Medical Center, Columbus, Ohio.
| | - Rachel Pearlman
- Division of Human Genetics; The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
| | - Alice Hinton
- Division of Gastroenterology, Hepatology and Nutrition, Ohio State University Wexner Medical Center, Columbus, Ohio; Division of Biostatistics, Ohio State University, Columbus, Ohio
| | | | | | - Heather Hampel
- Division of Human Genetics; The Ohio State University Comprehensive Cancer Center, Columbus, Ohio
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Abstract
Lynch syndrome is one of the most common hereditary cancer predisposition syndromes and is associated with increased risks of colorectal and endometrial cancer, as well as multiple other cancer types. While the mechanism of mismatch repair deficiency and microsatellite instability and its role in Lynch-associated carcinogenesis has been known for some time, there have been significant advances recently in diagnostic testing and the understanding of the molecular pathogenesis of Lynch tumors. There is also an increased awareness that the clinical phenotype and cancer risk varies by specific mismatch repair mutation, which in turn has implications on surveillance strategies for patients. Even the treatment of Lynch-associated cancers has changed with the addition of immunotherapy for advanced disease. This progress report aims to review some of the many advances in epidemiology, molecular pathogenesis, diagnosis, clinical phenotype, cancer surveillance, treatment, and chemo- and immune-prevention strategies in the Lynch syndrome field over the past 5 years.
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Affiliation(s)
- Leah H Biller
- Beth Israel Deaconess Medical Center, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - Sapna Syngal
- Dana-Farber Cancer Institute, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
- Brigham & Women's Hospital, Boston, MA, USA.
| | - Matthew B Yurgelun
- Dana-Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Brigham & Women's Hospital, Boston, MA, USA
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Ghorbanoghli Z, Jabari C, Sweidan W, Hammoudeh W, Cortas G, Sharara AI, Abedrabbo A, Hourani I, Mahjoubi B, Majidzadeh K, Tözün N, Ziada-Bouchaar H, Hamoudi W, Diab O, Khorshid HRK, Lynch H, Vasen H. A new hereditary colorectal cancer network in the Middle East and eastern mediterranean countries to improve care for high-risk families. Fam Cancer 2019; 17:209-212. [PMID: 28685475 PMCID: PMC5893664 DOI: 10.1007/s10689-017-0018-6] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Colorectal cancer (CRC) has a very high incidence in the western world. Data from registries in the Middle East showed that the incidence of CRC is relatively low in these countries. However, these data also showed that CRC incidence has increased substantially over the past three decades and that a high proportion of cases are diagnosed at an early age (<50 years). In view of these findings, more attention should be paid to prevention. Because of the often limited financial resources, focused screening of individuals with hereditary CRC, in particular those with Lynch syndrome, appears to be the most cost-effective strategy. During recent meetings of the Palestinian Society of Gastroenterology and the Mediterranean Task force for Cancer Control (MTCC) in Jericho, and the Patient’s Friends Society of Jerusalem in Hebron the issue of hereditary CRC in the Middle East was discussed and the idea was conceived to establish a network on hereditary colorectal cancer (HCCN-ME) with the goal of improving care for high-risk groups in the Middle East and (Eastern) Mediterranean Countries.
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Affiliation(s)
- Zeinab Ghorbanoghli
- Department of Gastroenterology and Hepatology, Leiden University Medical Centre & Netherlands Foundation for the Detection of Hereditary Tumours, Leiden, The Netherlands
| | - Carol Jabari
- Patient's Friends Society, Jerusalem, Palestine
- Hebron University, Hebron, Palestine
| | - Walid Sweidan
- Department of Gastroenterology, Makased Islamic Charitable Hospital, Jerusalem, Palestine
| | - Wail Hammoudeh
- Department of Internal Medicine, Arabcare Hospital, Ramallah, Palestine
| | - George Cortas
- Department of Gastroenterology, St. George Hospital Medical Center, University of Balamand Medical School, Beirut, Lebanon
| | - Ala I Sharara
- Division of Gastroenterology, American University of Beirut Medical Center, Beirut, Lebanon
| | - Amal Abedrabbo
- Department of Pediatrics, Makased Islamic Charitable Hospital, Jerusalem, Palestine
| | - Ijad Hourani
- Department of Surgery, Agusta Victoria Hospital, Jerusalem, Palestine
| | - Bahareh Mahjoubi
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Nurdan Tözün
- Department of Internal Medicine and Gastroenterology, University of Acibadem, Acibadem Kozyatagi Hospital, Istanbul, Turkey
| | - Hadia Ziada-Bouchaar
- Laboratory of Biology and Molecular Genetics, Faculty of Medicine, University 3, Constantine, Algeria
| | - Waseem Hamoudi
- Department of Gastroenterology, The Royal Hospital, Amman, Jordan
| | - Osama Diab
- Department of Internal Medicine, Creighton University, Omaha, USA
| | | | - Henry Lynch
- Creighton's Hereditary Cancer Center, Creighton University, Omaha, USA
| | - Hans Vasen
- Department of Gastroenterology & Hepatology, Leiden University Medical Centre, P.O. Box 9600, 2300 RC, Leiden, The Netherlands.
- Netherlands Foundation for the Detection of Hereditary Tumours, Leiden, The Netherlands.
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Johnatty SE, Stewart CJR, Smith D, Buchanan D, Leung Y, Oehler MK, Brand A, Webb PM, Spurdle AB. Risk and prognostic factors for endometrial carcinoma after diagnosis of breast or Lynch-associated cancers-A population-based analysis. Cancer Med 2018; 7:6411-6422. [PMID: 30485707 PMCID: PMC6308118 DOI: 10.1002/cam4.1890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 10/18/2018] [Accepted: 11/01/2018] [Indexed: 01/10/2023] Open
Abstract
We hypothesized that endometrial carcinoma (EC) patients with a prior cancer diagnosis, after accounting for EC arising after tamoxifen-treated prior breast carcinoma, are more likely to have an underlying genetic basis. We used information from a population-based study to compare measured risk factors, tumor characteristics, survival, and known mismatch repair (MMR) pathogenic variant status for EC subgroups according to prior diagnosis of cancer (none, breast cancer tamoxifen-treated or not, Lynch Syndrome (LS)-associated cancer). Family history of any cancer was increased for EC cases with prior breast cancer, both tamoxifen treated (P = 0.005) and untreated (P = 0.01). EC cases with prior LS-associated cancer more often reported family history of LS-associated cancer (P = 0.04) and breast cancer (P = 0.05). EC patients with a germline pathogenic MMR gene variant were more likely to report a prior cancer than cases with a MMR proficient tumor (P = 0.0001), but more than half (54.5%) of MMR carriers reported no prior cancer. Women developing EC after tamoxifen treatment for breast cancer were significantly more likely to develop EC of malignant mixed mullerian tumor subtype (13.2% vs 2.6%, P = 1.3 × 10-6 ), present with stage IV disease (8.8% vs 1.2%, P = 1.6 × 10-6 ), and have poorer survival (HRadj 1.96; P = 0.001). While report of prior cancer is an indicator of MMR pathogenic variant status, molecular analysis of all ECs at diagnosis is warranted to detect all patients with LS. Results also indicate the importance of longer-term monitoring of women treated with tamoxifen for symptoms of EC, and the need for studies assessing the biological mechanism underlying the poorer prognosis of this subset of EC patients.
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Affiliation(s)
- Sharon E. Johnatty
- Department of Genetics and Computational BiologyQIMR Berghofer Medical Research InstituteBrisbaneQueenslandAustralia
| | - Colin J. R. Stewart
- Department of HistopathologyKing Edward Memorial HospitalPerthWestern AustraliaAustralia
- School of Woman's and Infants' HealthUniversity of Western AustraliaPerthWestern AustraliaAustralia
| | - Deborah Smith
- Department of PathologyThe Mater HospitalBrisbaneQueenslandAustralia
| | - Daniel Buchanan
- Colorectal Oncogenomics Group, Genetic Epidemiology Laboratory, Department of PathologyThe University of MelbourneParkvilleVictoriaAustralia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global HealthThe University of MelbourneMelbourneVictoriaAustralia
- Genetic Medicine and Family Cancer ClinicRoyal Melbourne HospitalParkvilleVictoriaAustralia
| | - Yee Leung
- School of Woman's and Infants' HealthUniversity of Western AustraliaPerthWestern AustraliaAustralia
- Department of Gynaecological OncologyKing Edward Memorial HospitalPerthWestern AustraliaAustralia
| | - Martin K. Oehler
- Department of Gynaecological OncologyRoyal Adelaide HospitalAdelaideSouth AustraliaAustralia
| | - Alison Brand
- Department of Gynaecological OncologyWestmead Hospital, University of SydneyWestmeadNew South WalesAustralia
| | - Penelope M. Webb
- Department of Population HealthQIMR Berghofer Medical Research InstituteBrisbaneQueenslandAustralia
| | - Amanda B. Spurdle
- Department of Genetics and Computational BiologyQIMR Berghofer Medical Research InstituteBrisbaneQueenslandAustralia
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Iordache PD, Mates D, Gunnarsson B, Eggertsson HP, Sulem P, Benonisdottir S, Csiki IE, Rascu S, Radavoi D, Ursu R, Staicu C, Calota V, Voinoiu A, Jinga M, Rosoga G, Danau R, Sima SC, Badescu D, Suciu N, Radoi V, Mates IN, Dobra M, Nicolae C, Kristjansdottir S, Jonasson JG, Manolescu A, Arnadottir G, Jensson B, Jonasdottir A, Sigurdsson A, le Roux L, Johannsdottir H, Rafnar T, Halldorsson BV, Jinga V, Stefansson K. Identification of Lynch syndrome risk variants in the Romanian population. J Cell Mol Med 2018; 22:6068-6076. [PMID: 30324682 PMCID: PMC6237568 DOI: 10.1111/jcmm.13881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/27/2018] [Accepted: 08/02/2018] [Indexed: 12/24/2022] Open
Abstract
Two familial forms of colorectal cancer (CRC), Lynch syndrome (LS) and familial adenomatous polyposis (FAP), are caused by rare mutations in DNA mismatch repair genes (MLH1, MSH2, MSH6, PMS2) and the genes APC and MUTYH, respectively. No information is available on the presence of high-risk CRC mutations in the Romanian population. We performed whole-genome sequencing of 61 Romanian CRC cases with a family history of cancer and/or early onset of disease, focusing the analysis on candidate variants in the LS and FAP genes. The frequencies of all candidate variants were assessed in a cohort of 688 CRC cases and 4567 controls. Immunohistochemical (IHC) staining for MLH1, MSH2, MSH6, and PMS2 was performed on tumour tissue. We identified 11 candidate variants in 11 cases; six variants in MLH1, one in MSH6, one in PMS2, and three in APC. Combining information on the predicted impact of the variants on the proteins, IHC results and previous reports, we found three novel pathogenic variants (MLH1:p.Lys84ThrfsTer4, MLH1:p.Ala586CysfsTer7, PMS2:p.Arg211ThrfsTer38), and two novel variants that are unlikely to be pathogenic. Also, we confirmed three previously published pathogenic LS variants and suggest to reclassify a previously reported variant of uncertain significance to pathogenic (MLH1:c.1559-1G>C).
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Affiliation(s)
- Paul D. Iordache
- deCODE genetics/AMGENReykjavikIceland
- School of Science and EngineeringReykjavik UniversityReykjavikIceland
| | - Dana Mates
- National Institute of Public HealthBucharestRomania
| | | | | | | | | | | | - Stefan Rascu
- Urology Department‘Prof. Dr. Th. Burghele’ Clinical Hospital, University of Medicine and Pharmacy “Carol Davila”BucharestRomania
| | - Daniel Radavoi
- Urology Department‘Prof. Dr. Th. Burghele’ Clinical Hospital, University of Medicine and Pharmacy “Carol Davila”BucharestRomania
| | - Radu Ursu
- Department of Medical Genetics, Faculty of Medicine“Carol Davila” University of Medicine and PharmacyBucharestRomania
| | | | | | | | - Mariana Jinga
- Carol Davila University of Medicine and Pharmacy, Dr. Carol Davila Central University Emergency Military HospitalBucharestRomania
| | - Gabriel Rosoga
- Urology Department‘Prof. Dr. Th. Burghele’ Clinical Hospital, University of Medicine and Pharmacy “Carol Davila”BucharestRomania
| | - Razvan Danau
- Urology Department‘Prof. Dr. Th. Burghele’ Clinical Hospital, University of Medicine and Pharmacy “Carol Davila”BucharestRomania
| | - Sorin Cristian Sima
- Urology Department‘Prof. Dr. Th. Burghele’ Clinical Hospital, University of Medicine and Pharmacy “Carol Davila”BucharestRomania
| | - Daniel Badescu
- Urology Department‘Prof. Dr. Th. Burghele’ Clinical Hospital, University of Medicine and Pharmacy “Carol Davila”BucharestRomania
| | | | - Viorica Radoi
- Department of Medical Genetics, Faculty of Medicine“Carol Davila” University of Medicine and PharmacyBucharestRomania
| | - Ioan Nicolae Mates
- St. Mary” General Surgery ClinicUniversity of Medicine and Pharmacy Carol DavilaBucharestRomania
| | - Mihai Dobra
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | - Camelia Nicolae
- Carol Davila University of Medicine and PharmacyBucharestRomania
| | | | - Jon G. Jonasson
- Department of PathologyLandspitali University HospitalReykjavikIceland
- Faculty of MedicineSchool of Health Sciences, University of IcelandReykjavikIceland
| | - Andrei Manolescu
- School of Science and EngineeringReykjavik UniversityReykjavikIceland
| | | | | | | | | | | | | | | | - Bjarni V. Halldorsson
- deCODE genetics/AMGENReykjavikIceland
- School of Science and EngineeringReykjavik UniversityReykjavikIceland
| | - Viorel Jinga
- Urology Department‘Prof. Dr. Th. Burghele’ Clinical Hospital, University of Medicine and Pharmacy “Carol Davila”BucharestRomania
| | - Kari Stefansson
- deCODE genetics/AMGENReykjavikIceland
- Faculty of MedicineSchool of Health Sciences, University of IcelandReykjavikIceland
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Goshayeshi L, Ghaffarzadegan K, Khooei A, Esmaeilzadeh A, Rahmani Khorram M, Mosannen Mozaffari H, Kiani B, Hoseini B. Prevalence and clinicopathological characteristics of mismatch repair-deficient colorectal carcinoma in early onset cases as compared with late-onset cases: a retrospective cross-sectional study in Northeastern Iran. BMJ Open 2018; 8:e023102. [PMID: 30166308 PMCID: PMC6119423 DOI: 10.1136/bmjopen-2018-023102] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Lynch syndrome (LS), a genetically inherited autosomal disorder, increases the incidence of colorectal carcinoma (CRC). We aimed to perform a universal strategy to assess the prevalence and clinicopathological characteristics of early onset CRCs at high risk of LS versus late-onset ones in the Iranian population. SETTING A local population-based study from Northeastern Iran. PARTICIPANTS 321 consecutive CRCs and pathology specimen screened between 2013 and 2016. PRIMARY AND SECONDARY OUTCOME MEASURES Retrospectively, information regarding the clinical criteria was obtained by interviewing the patients with CRC or, their families. Pathologists tested tumours with immunohistochemistry (IHC) staining of four mismatch repair (MMR) proteins (MLH1, MSH2, MSH6 and PMS2). Tumours with absent IHC staining of MLH1 were tested for BRAF mutations to exclude sporadic CRCs. Prevalence of early onset CRCs at high risk of LS and familial CRC type X were assessed as primary and secondary outcome measures, respectively. RESULTS Of 321 CRCs (13/123 (10.57%), early onset vs 21/198 (10.6%) late-onset) were detected to be MMR-deficient (dMMR). Nine early onset cases and 14 late-onset ones with a loss of MLH1 underwent testing for the BRAF mutation, none of the early onset and four (2.02%) late-onset were recognised as sporadic. The difference in the outcome of IHC-analysis between early and late-onset CRCs at high risk of LS was not statistically significant (p=0.34). Majority of the suspected LS tumours from early onset patients had arisen in distal part (8/11 (72.72%) vs 8/14 (57.14%)), all of which were occurred in the rectum or sigmoid. CONCLUSION Clinically, these findings suggest that in case of limitation for BRAF testing, the practitioner in Iran may consider managing early onset dMMR cases like LS until access to BRAF testing becomes available to them, before germline testing to accurately diagnose LS.
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Affiliation(s)
- Ladan Goshayeshi
- Gastroentrology and Hepatology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kamran Ghaffarzadegan
- Pathology Department, Education and Research Department, Razavi Hospital, Mashhad, Iran
| | - Alireza Khooei
- Department of Pathology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Esmaeilzadeh
- Gastroentrology and Hepatology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahla Rahmani Khorram
- Medical Student, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hooman Mosannen Mozaffari
- Gastroentrology and Hepatology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Gastroenterology and Hepatology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Behzad Kiani
- Department of Medical Informatics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Benyamin Hoseini
- Department of Health Information Technology, Neyshabur University of Medical Sciences, Neyshabur, Iran
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Ryan NAJ, Blake D, Cabrera-Dandy M, Glaire MA, Evans DG, Crosbie EJ. The prevalence of Lynch syndrome in women with endometrial cancer: a systematic review protocol. Syst Rev 2018; 7:121. [PMID: 30115102 PMCID: PMC6097297 DOI: 10.1186/s13643-018-0792-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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] [Received: 12/29/2017] [Accepted: 08/01/2018] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Lynch syndrome is the most common inherited cancer syndrome, which predisposes individuals to a number of different cancers, principally colorectal and endometrial cancer. The early diagnosis of Lynch syndrome enables colorectal surveillance, which has been shown to save lives through the detection and removal of premalignant polyps and earlier detection of invasive disease. Endometrial cancer, which is often the sentinel cancer in women, provides an opportunity to diagnose Lynch syndrome and thus enable colorectal surveillance as well as the cascade testing for Lynch syndrome in other family members. These potential benefits have led to a call for the universal screening of women with endometrial cancer for Lynch syndrome, a practice that is now commonplace in colorectal cancer. Healthcare providers and clinicians are however restricted by insufficient knowledge about the prevalence of Lynch syndrome in women with endometrial cancer, with estimates varying as widely as 1-10%. The aim of this study is to perform a systematic review with a meta-analysis of the current literature base in order to estimate the prevalence of Lynch syndrome among women with endometrial cancer to inform this discussion. METHODS Medline, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Methodology Register, NHS Health and Technology Assessment Database and the Web of Science will be systematically searched for relevant studies via the Ovid platform. Two authors will review the titles and abstracts independently, with discrepancy settled by a third author. Data extraction will be completed to record demographic, pathological and clinical data, as well as the diagnostic methods used for estimating the prevalence of Lynch syndrome in women with endometrial cancer. Bias will be assessed and recorded using the Newcastle-Ottawa Scale and that of the International Cochrane Collaboration. Dependent on the heterogeneity of the data, we aim to produce a cumulative incidence in addition to subgroup analyses as to investigate secondary outcomes. DISCUSSION The aim of this systematic review is to provide a robust estimate of the prevalence of Lynch syndrome in women with endometrial cancer. This will enable resource allocation and decision-making regarding the appropriateness of screening all women, or certain women, with endometrial cancer for Lynch syndrome. Such a policy could enable the earlier diagnosis of Lynch syndrome in women and, through the application of colorectal cancer surveillance, improve their survival outcomes. SYSTEMATIC REVIEW REGISTRATION This systematic review has been registered on PROSPERO (ref CRD42017081707 ).
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Affiliation(s)
- Neil A. J. Ryan
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary’s Hospital, Manchester, UK
- Division of Evolution and Genomic Medicine, Faculty of Biology, Medicine and Health, University of Manchester, St Mary’s Hospital, Manchester, UK
| | - Dominic Blake
- The Northern Gynaecological Oncology Centre, The Queen Elizabeth Hospital, Gateshead, UK
| | - Marcus Cabrera-Dandy
- Royal Blackburn Hospital, Lancashire Hospitals NHS Trust, Haslingden Road, Blackburn, UK
| | - Mark A. Glaire
- Tumour Genomics and Immunology Group, The Oxford Centre for Cancer Gene Research, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - D. Gareth Evans
- Division of Evolution and Genomic Medicine, Faculty of Biology, Medicine and Health, University of Manchester, St Mary’s Hospital, Manchester, UK
- Manchester Centre for Genomic Medicine, St Mary’s Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
| | - Emma J. Crosbie
- Division of Cancer Sciences, Faculty of Biology, Medicine and Health, University of Manchester, St Mary’s Hospital, Manchester, UK
- Department of Obstetrics and Gynaecology, St Mary’s Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK
- Gynaecological Oncology Research Group, Division of Cancer Sciences, University of Manchester, 5th Floor Research, St Mary’s Hospital, Oxford Road, Manchester, M13 9WL UK
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Boland PM, Yurgelun MB, Boland CR. Recent progress in Lynch syndrome and other familial colorectal cancer syndromes. CA Cancer J Clin 2018; 68:217-231. [PMID: 29485237 PMCID: PMC5980692 DOI: 10.3322/caac.21448] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 01/08/2018] [Accepted: 01/31/2018] [Indexed: 12/16/2022] Open
Abstract
The current understanding of familial colorectal cancer was limited to descriptions of affected pedigrees until the early 1990s. A series of landscape-altering discoveries revealed that there were distinct forms of familial cancer, and most were related to genes previously not known to be involved in human disease. This review largely focuses on advances in our understanding of Lynch syndrome because of the unique relationship of this disease to defective DNA mismatch repair and the clinical implications this has for diagnostics, prevention, and therapy. Recent advances have occurred in our understanding of the epidemiology of this disease, and the advent of broad genetic panels has altered the approach to germline and somatic diagnoses for all of the familial colorectal cancer syndromes. Important advances have been made toward a more complete mechanistic understanding of the pathogenesis of neoplasia in the setting of Lynch syndrome, and these advances have important implications for prevention. Finally, paradigm-shifting approaches to treatment of Lynch-syndrome and related tumors have occurred through the development of immune checkpoint therapies for hypermutated cancers. CA Cancer J Clin 2018;68:217-231. © 2018 American Cancer Society.
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Affiliation(s)
- Patrick M Boland
- Assistant Professor, Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY
| | - Matthew B Yurgelun
- Assistant Professor of Medicine, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - C Richard Boland
- Professor, Department of Medicine, University of California at San Diego School of Medicine, San Diego, CA
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Abstract
Hereditary non-polyposis colorectal cancer (HNPCC or Lynch syndrome) is characterized by early occurrence of colorectal malignancies, localization of tumors in the proximal colon, frequency of multiple primaries (both synchronous and metachronous) and an autosomal dominant type of genetic transmission. HNPCC has been reported in many races and populations, including Japanese, Philipinos and American Indians. The frequency of the disease ranges between 1 and 5% of all colorectal malignancies. In northern Italy, the frequency of HNPCC has been estimated in the order of 2.8-3.0% of all registered cancers of the large bowel, while lower estimates have been recorded in southern regions. The identification of HNPCC remains difficult, mainly because the full-blown syndrome does not become manifest until several family members are affected with cancer. The recent identification of at least four genes responsible, when mutated, for the clinical spectrum of Lynch syndrome should be of considerable help in recognizing this type of tumors in the general population.
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Affiliation(s)
- M Ponz de Leon
- Dipartimento di Medicina Interna, Università di Modena, Modena, Italy
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Abstract
Starting from a survey of the studies on familial aggregation of colorectal cancer, we introduce the aims of genetic epidemiology. One of its main goals is to assess population frequency of cancer susceptibility genes and to determine the age-specific risks for carriers with respect to non-carriers. In section two, segregation analysis investigations are reviewed, and inferences on the relevance of genetic components of susceptibility to colorectal cancer are drawn. In section three, the HNPCC paradigm is discussed in the light of the Knudson model of tumorigenesis and recent advances of molecular research. In the last section we show an example of genotype/environment interaction in the etiology of a particular cancer and present a conceptual framework for studies on cancer genetic epidemiology in terms of attributable and relative risk.
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Affiliation(s)
- S Presciuttini
- Dipartimento di Scienze dell'Ambiente e del Territorio, Pisa, Italy
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Saita C, Yamaguchi T, Horiguchi SI, Yamada R, Takao M, Iijima T, Wakaume R, Aruga T, Tabata T, Koizumi K. Tumor development in Japanese patients with Lynch syndrome. PLoS One 2018; 13:e0195572. [PMID: 29672549 PMCID: PMC5908237 DOI: 10.1371/journal.pone.0195572] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 03/26/2018] [Indexed: 12/20/2022] Open
Abstract
Background Lynch syndrome (LS) patients have a high risk of developing various tumors. This study aimed to clarify the characteristics of tumors developing in LS patients. Methods This is a retrospective review of 55 LS patients treated at Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital. Results The median age at the diagnosis of the first malignant tumor and first LS-related tumor was 44 (range, 19−65) and 44 (range, 24−66) years, respectively. Of the 55 LS patients with developing malignant tumors, 45 (93.8%) developed an LS-related tumor as the first malignant tumor. Colorectal cancer (CRC) developed in 47 patients (85.4%), followed by endometrial cancer (n = 13, 56.5%) in females and gastric cancer (n = 10, 18.1%). In 6 gastric cancer patients, Helicobacter pylori was detected in resected specimens. Twenty-nine patients (52.7%) developed CRC and extra-colonic tumors; of these, 15 patients (48.3%) had mutations in MLH1, 10 (58.8%) in MSH2, and 4 (57.1%) in MSH6. At the age of 50, the cumulative incidence was 50.9% [95% confidence interval (CI), 36.9−63.3%] for CRC, 17.4% (95% CI, 5.2−35.6%) for endometrial cancer, and 5.5% (95% CI, 1.4−13.8%) for gastric cancer. Eight gastric cancer, one breast cancer patient, five bladder cancer patients, and one prostate cancer patient demonstrated loss of expression of the mismatch repair (MMR) protein; patients with thyroid cancer, spindle cell sarcoma, and giant cell tumors did not demonstrate this. Conclusion Gastric cancer incidence was high in Japanese patients with LS and associated with H. pylori infection. MMR protein deficiency caused the development of malignant tumors in LS patients.
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Affiliation(s)
- Chiaki Saita
- Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Tatsuro Yamaguchi
- Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
- Department of Clinical Genetics, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
- Hereditary Tumor Research Project, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
- * E-mail:
| | - Shin-ichiro Horiguchi
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Rin Yamada
- Department of Pathology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Misato Takao
- Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Takeru Iijima
- Hereditary Tumor Research Project, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Rika Wakaume
- Hereditary Tumor Research Project, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Tomoyuki Aruga
- Department of Surgery, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
- Department of Clinical Genetics, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Taku Tabata
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
| | - Koichi Koizumi
- Department of Gastroenterology, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan
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Abstract
Aims To analyze the prevalence of colorectal cancer (CRC) in different areas of Italy by age, interval since diagnosis and disease stage at diagnosis, and to estimate the prevalence of CRC. These data provide estimates of patient demand on health resources. Patients and Methods Eleven Italian cancer registries (CRs) provided data on 33,740 patients observed for up to 15 years. For the 1,829 cases from the specialized colorectal cancer registry of Modena we analyzed prevalence by Dukes’ stage and family history. PREVAL software produced observed prevalence figures by time from diagnosis; to determine the total prevalence, correction factors were applied to the observed data. Results At the end of 1992, five-year CRC prevalence was high (close to 200 per 100,000) in Genova, Parma, Romagna and Firenze, and low (around 75 per 100,000) in the southern areas of Latina and Ragusa. For all CRs, 86 patients per 100,000 population were alive up to 2 years from diagnosis and 77 per 100,000 between 2 and 5 years from diagnosis. The 5-year prevalence of patients diagnosed with Dukes’ B or C (high risk of recurrence and requiring postoperative surveillance) was 152 per 100,000; that of Dukes’ A patients 36 per 100,000 (considered cured after surgery and not requiring intensive follow-up or care); that of unstaged patients plus those with distant metastasis at diagnosis was 28 per 100,000 at 5 years (requiring palliative care but not follow-up). The 12-year prevalence of HNPCC was 23 per 100,000, or about 7% of the total; for such patients knowledge of the long-term prevalence is important because they are diagnosed young and are at high risk of multiple tumor development. Conclusions 70% of the prevalent patients diagnosed within 5 years prior to the prevalence date were likely to require care for cancer recurrence, while 13% of the prevalent cases required care for distant metastases.
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Affiliation(s)
- G Gatta
- Epidemiology Division, National Cancer Institute, Milan, Italy
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Cornaggia M, Tibiletti MG, Albarello L, Taborelli M, Dalla Longa E, Capella C. Low Incidence of Hereditary Nonpolyposis Colorectal Cancer Syndrome in a Selected Area of the Lombardy Cancer Registry. Tumori 2018; 86:439-44. [PMID: 11218182 DOI: 10.1177/030089160008600601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims and background Epidemiological investigations on the frequency of hereditary nonpolyposis colorectal cancer (HNPCC) syndrome are few and have shown a variable worldwide incidence ranging from 1% to 7% of all colorectal cancers (CRCs). In Italy, relevant differences have been observed: 2.8-3% of all CRCs in northern regions and less than 1% in southern regions. The aim of the present study was to investigate the HNPCC incidence in a selected area of northern Italy belonging to the Lombardy Cancer Registry. Methods and study design We analyzed 197 consecutive patients with newly diagnosed CRCs, histologically verified, and resident in two areas of the Lombardy Cancer Registry. For each case, genetic counseling with at least three generations pedigree reconstruction, HNPCC classification according to Amsterdam criteria, molecular analysis for microsatellite instability and immunohistochemistry for hMLH1 and hMSH2 were performed. Results A very low frequency (0.5%) of HNPCC fulfilling the Amsterdam criteria was found in comparison to the other Italian areas. Such an incidence seems to be due to actual population differences and reflects a genetic heterogeneity. Conclusions The data underline the importance of a precise knowledge of actual HNPCC incidence in different populations in order to optimize effectiveness and efficiency of screening programs for the disease.
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Affiliation(s)
- M Cornaggia
- Department of Pathology, Ospedale Multizonale Varese, Italy
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Walton Bernstedt S, Björk J, Mints M, Björck E, Backman AS. [<p>Lynch syndrome is a major cause of monogenetic familial colorectal cancer</p>]. Lakartidningen 2018; 115:EY3C. [PMID: 29664536] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Individuals with a history of colorectal or endometrial cancer younger than 50 years of age or with relatives younger than 50 years of age with a history of any of these malignances should be referred to clinical genetics for further diagnostic examinations and genetic counseling. Lynch syndrome is caused by mutations in mismatch repair genes and implicates an increased risk for colorectal cancer as well as endometrial cancer. Routine surveillance for this group of individuals regarding colorectal cancer by means of colonoscopy and endometrial cancer by means of transvaginal ultrasound as well as endometrial biopsies is recommended annually or biennially. Several preventive measures are under development, such as chemoprevention and vaccination. During 2015 we investigated reasons for diagnosis among those registered at Karolinska University Hospital. We found that a substantial part of this group of individuals was diagnosed in conjunction with their diagnosis of cancer; a prerequisite in order to offer at-risk individuals preventive measures is to improve identification of these individuals and offer them presymptomatic genetic testing in order to identify predisposing mutations.
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Affiliation(s)
- Sophie Walton Bernstedt
- Karolinska Universitetssjukhuset Gastrocentrum - Stockholm, Sweden Karolinska Universitetssjukhuset Gastrocentrum - Stockholm, Sweden
| | - Jan Björk
- Karolinska Universitetssjukhuset Gastrocentrum - Stockholm, Sweden Karolinska Universitetssjukhuset Gastrocentrum - Stockholm, Sweden
| | - Miriam Mints
- Karolinska Universitetssjukhuset Kvinnokliniken - Stockholm, Sweden Karolinska Universitetssjukhuset Kvinnokliniken - Stockholm, Sweden
| | - Erik Björck
- Karolinska universitetslaboratoriet Klinisk genetik avdelningen - Stockholm, Sweden Karolinska universitetslaboratoriet Klinisk genetik avdelningen - Stockholm, Sweden
| | - Ann-Sofie Backman
- Karolinska Universitetssjukhuset Gastrocentrum - Stockholm, Sweden Karolinska Universitetssjukhuset Gastrocentrum - Stockholm, Sweden
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Provenzale D, Gupta S, Ahnen DJ, Bray T, Cannon JA, Cooper G, David DS, Early DS, Erwin D, Ford JM, Giardiello FM, Grady W, Halverson AL, Hamilton SR, Hampel H, Ismail MK, Klapman JB, Larson DW, Lazenby AJ, Lynch PM, Mayer RJ, Ness RM, Regenbogen SE, Samadder NJ, Shike M, Steinbach G, Weinberg D, Dwyer M, Darlow S. Genetic/Familial High-Risk Assessment: Colorectal Version 1.2016, NCCN Clinical Practice Guidelines in Oncology. J Natl Compr Canc Netw 2017; 14:1010-30. [PMID: 27496117 DOI: 10.6004/jnccn.2016.0108] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
This is a focused update highlighting the most current NCCN Guidelines for diagnosis and management of Lynch syndrome. Lynch syndrome is the most common cause of hereditary colorectal cancer, usually resulting from a germline mutation in 1 of 4 DNA mismatch repair genes (MLH1, MSH2, MSH6, or PMS2), or deletions in the EPCAM promoter. Patients with Lynch syndrome are at an increased lifetime risk, compared with the general population, for colorectal cancer, endometrial cancer, and other cancers, including of the stomach and ovary. As of 2016, the panel recommends screening all patients with colorectal cancer for Lynch syndrome and provides recommendations for surveillance for early detection and prevention of Lynch syndrome-associated cancers.
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Rossi BM, Palmero EI, López-Kostner F, Sarroca C, Vaccaro CA, Spirandelli F, Ashton-Prolla P, Rodriguez Y, de Campos Reis Galvão H, Reis RM, Escremim de Paula A, Capochin Romagnolo LG, Alvarez K, Della Valle A, Neffa F, Kalfayan PG, Spirandelli E, Chialina S, Gutiérrez Angulo M, Castro-Mujica MDC, Sanchez de Monte J, Quispe R, da Silva SD, Rossi NT, Barletta-Carrillo C, Revollo S, Taborga X, Morillas LL, Tubeuf H, Monteiro-Santos EM, Piñero TA, Dominguez-Barrera C, Wernhoff P, Martins A, Hovig E, Møller P, Dominguez-Valentin M. A survey of the clinicopathological and molecular characteristics of patients with suspected Lynch syndrome in Latin America. BMC Cancer 2017; 17:623. [PMID: 28874130 PMCID: PMC5586063 DOI: 10.1186/s12885-017-3599-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [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] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 08/23/2017] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Genetic counselling and testing for Lynch syndrome (LS) have recently been introduced in several Latin America countries. We aimed to characterize the clinical, molecular and mismatch repair (MMR) variants spectrum of patients with suspected LS in Latin America. METHODS Eleven LS hereditary cancer registries and 34 published LS databases were used to identify unrelated families that fulfilled the Amsterdam II (AMSII) criteria and/or the Bethesda guidelines or suggestive of a dominant colorectal (CRC) inheritance syndrome. RESULTS We performed a thorough investigation of 15 countries and identified 6 countries where germline genetic testing for LS is available and 3 countries where tumor testing is used in the LS diagnosis. The spectrum of pathogenic MMR variants included MLH1 up to 54%, MSH2 up to 43%, MSH6 up to 10%, PMS2 up to 3% and EPCAM up to 0.8%. The Latin America MMR spectrum is broad with a total of 220 different variants which 80% were private and 20% were recurrent. Frequent regions included exons 11 of MLH1 (15%), exon 3 and 7 of MSH2 (17 and 15%, respectively), exon 4 of MSH6 (65%), exons 11 and 13 of PMS2 (31% and 23%, respectively). Sixteen international founder variants in MLH1, MSH2 and MSH6 were identified and 41 (19%) variants have not previously been reported, thus representing novel genetic variants in the MMR genes. The AMSII criteria was the most used clinical criteria to identify pathogenic MMR carriers although microsatellite instability, immunohistochemistry and family history are still the primary methods in several countries where no genetic testing for LS is available yet. CONCLUSION The Latin America LS pathogenic MMR variants spectrum included new variants, frequently altered genetic regions and potential founder effects, emphasizing the relevance implementing Lynch syndrome genetic testing and counseling in all of Latin America countries.
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Affiliation(s)
| | - Edenir Inêz Palmero
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, SP Brazil
| | | | - Carlos Sarroca
- Hospital Fuerzas Armadas, Grupo Colaborativo Uruguayo, Investigación de Afecciones Oncológicas Hereditarias (GCU), Montevideo, Uruguay
| | | | - Florencia Spirandelli
- Servicio de Coloproctologia y Asesoria Genetica en Cancer, Hospital Español de Rosario, Rosario, Argentina
| | - Patricia Ashton-Prolla
- Departamento de Genética da Universidade Federal do Rio Grande do Sul (UFRGS) e Serviço de Genética Médica do Hospital de Clinicas de Porto Alegre (HCPA) & Rede Brasileira de Câncer Hereditário, Porto Alegre, Rio Grande Do Sul Brazil
| | | | | | - Rui Manuel Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital & Life and Health Sciences Research Institute (ICVS), Health Sciences School, University of Minho, Braga, Portugal
- ICVS/3B’s-PT Government Associate Laboratory, Braga, Guimarães Portugal
| | | | | | - Karin Alvarez
- Laboratorio de Oncología y Genética Molecular, Clínica Los Condes, Santiago, Chile
| | - Adriana Della Valle
- Hospital Fuerzas Armadas, Grupo Colaborativo Uruguayo, Investigación de Afecciones Oncológicas Hereditarias (GCU), Montevideo, Uruguay
| | - Florencia Neffa
- Hospital Fuerzas Armadas, Grupo Colaborativo Uruguayo, Investigación de Afecciones Oncológicas Hereditarias (GCU), Montevideo, Uruguay
| | | | - Enrique Spirandelli
- Servicio de Coloproctologia y Asesoria Genetica en Cancer, Hospital Español de Rosario, Rosario, Argentina
| | - Sergio Chialina
- Servicio de Coloproctologia y Asesoria Genetica en Cancer, Hospital Español de Rosario, Rosario, Argentina
| | | | | | | | - Richard Quispe
- Laboratorio de Genética Molecular del Instituto de Servicios de Laboratorio de Diagnóstico e Investigación en Salud (SELADIS), La Paz, Bolivia
| | - Sabrina Daniela da Silva
- Lady Davis Institute for Medical Research and Segal Cancer Center, Jewish General Hospital, Montreal, Quebec, Canada
- Department of Otolaryngology-Head and Neck Surgery, McGill University, Montreal, Quebec, Canada
| | | | - Claudia Barletta-Carrillo
- Equipo Funcional de Genética y Biologia Molecular, Instituto Nacional de Enfermedades Neoplásicas, Lima, Peru
| | - Susana Revollo
- Laboratorio de Genética Molecular del Instituto de Servicios de Laboratorio de Diagnóstico e Investigación en Salud (SELADIS), La Paz, Bolivia
| | - Ximena Taborga
- Laboratorio de Genética Molecular del Instituto de Servicios de Laboratorio de Diagnóstico e Investigación en Salud (SELADIS), La Paz, Bolivia
| | | | - Hélène Tubeuf
- Inserm-U1079-IRIB, UNIROUEN, Normandie Univ, Normandy Centre for Genomic and Personalized Medicine, Rouen, France
- Interactive Biosoftware, Rouen, France
| | | | - Tamara Alejandra Piñero
- Instituto de Ciencias Basicas y Medicina Experimental (ICBME), Hospital Italiano, Buenos Aires, Argentina
| | - Constantino Dominguez-Barrera
- Department of Preventive Medicine, Faculty of Medicine, Universidad Nacional Mayor de San Marcos (UNMSM), Lima, Peru
| | - Patrik Wernhoff
- Department of Clinical Molecular Biology (EpiGen), Akershus University Hospital, Lørenskog, Norway
| | - Alexandra Martins
- Inserm-U1079-IRIB, UNIROUEN, Normandie Univ, Normandy Centre for Genomic and Personalized Medicine, Rouen, France
| | - Eivind Hovig
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Institute of Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway
| | - Pål Møller
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
- Department of Human Medicine, Universität Witten/Herdecke, Witten, Germany
| | - Mev Dominguez-Valentin
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
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50
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Møller P, Seppälä T, Bernstein I, Holinski-Feder E, Sala P, Evans DG, Lindblom A, Macrae F, Blanco I, Sijmons R, Jeffries J, Vasen H, Burn J, Nakken S, Hovig E, Rødland EA, Tharmaratnam K, de Vos tot Nederveen Cappel WH, Hill J, Wijnen J, Jenkins M, Green K, Lalloo F, Sunde L, Mints M, Bertario L, Pineda M, Navarro M, Morak M, Renkonen-Sinisalo L, Frayling IM, Plazzer JP, Pylvanainen K, Genuardi M, Mecklin JP, Möslein G, Sampson JR, Capella G. Incidence of and survival after subsequent cancers in carriers of pathogenic MMR variants with previous cancer: a report from the prospective Lynch syndrome database. Gut 2017; 66:1657-1664. [PMID: 27261338 PMCID: PMC5561364 DOI: 10.1136/gutjnl-2016-311403] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [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] [Received: 01/04/2016] [Revised: 05/06/2016] [Accepted: 05/10/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Today most patients with Lynch syndrome (LS) survive their first cancer. There is limited information on the incidences and outcome of subsequent cancers. The present study addresses three questions: (i) what is the cumulative incidence of a subsequent cancer; (ii) in which organs do subsequent cancers occur; and (iii) what is the survival following these cancers? DESIGN Information was collated on prospectively organised surveillance and prospectively observed outcomes in patients with LS who had cancer prior to inclusion and analysed by age, gender and genetic variants. RESULTS 1273 patients with LS from 10 countries were followed up for 7753 observation years. 318 patients (25.7%) developed 341 first subsequent cancers, including colorectal (n=147, 43%), upper GI, pancreas or bile duct (n=37, 11%) and urinary tract (n=32, 10%). The cumulative incidences for any subsequent cancer from age 40 to age 70 years were 73% for pathogenic MLH1 (path_MLH1), 76% for path_MSH2 carriers and 52% for path_MSH6 carriers, and for colorectal cancer (CRC) the cumulative incidences were 46%, 48% and 23%, respectively. Crude survival after any subsequent cancer was 82% (95% CI 76% to 87%) and 10-year crude survival after CRC was 91% (95% CI 83% to 95%). CONCLUSIONS Relative incidence of subsequent cancer compared with incidence of first cancer was slightly but insignificantly higher than cancer incidence in patients with LS without previous cancer (range 0.94-1.49). The favourable survival after subsequent cancers validated continued follow-up to prevent death from cancer. The interactive website http://lscarisk.org was expanded to calculate the risks by gender, genetic variant and age for subsequent cancer for any patient with LS with previous cancer.
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Affiliation(s)
- Pål Møller
- Research Group Inherited Cancer, Department of Medical Genetics, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
- Department of Tumor Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Part of Oslo University Hospital, Oslo, Norway
- Surgical Center for Hereditary Tumors, HELIOS University Clinic Wuppertal, University Witten-Herdecke, Wuppertal, Germany
| | - Toni Seppälä
- Department of Surgery, Central Finland Health Care District, Jyväskylä, Finland
| | - Inge Bernstein
- The Danish Hereditary Non-polyposis Colorectal Cancer Register, Clinical Research Centre, Copenhagen University Hospital, Hvidovre, Denmark
- Department Surgical Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
| | - Elke Holinski-Feder
- Medizinische Klinik und Poliklinik IV, Campus Innenstadt, Klinikum der Universität München, Munich, Germany
- MGZ—Medizinisch Genetisches Zentrum, Munich, Germany
| | - Paola Sala
- Unit of Hereditary Digestive Tract Tumors IRCCS, Istituto Nazionale Tumori, Milan, Italy
| | - D Gareth Evans
- Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
- Manchester Centre for Genomic Medicine, University of Manchester, Manchester, UK
| | - Annika Lindblom
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Finlay Macrae
- Colorectal Medicine and Genetics, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Medicine, Melbourne University, Melbourne, Australia
| | - Ignacio Blanco
- Hereditary Cancer Program, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Rolf Sijmons
- Department of Genetics, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jacqueline Jeffries
- Institute of Medical Genetics, Cardiff University School of Medicine, Cardiff, UK
| | - Hans Vasen
- Department of Gastroenterology and Hepatology, Leiden University Medical Centre, Leiden, The Netherlands
| | - John Burn
- Institute of Genetic Medicine Newcastle University, Newcastle upon Tyne, UK
| | - Sigve Nakken
- Department of Tumor Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Part of Oslo University Hospital, Oslo, Norway
| | - Eivind Hovig
- Department of Tumor Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Part of Oslo University Hospital, Oslo, Norway
- Institute of Cancer Genetics and Informatics, The Norwegian Radium Hospital, Part of Oslo University Hospital, Oslo, Norway
- Department of Informatics, University of Oslo, Oslo, Norway
| | - Einar Andreas Rødland
- Department of Tumor Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Part of Oslo University Hospital, Oslo, Norway
| | | | | | - James Hill
- Department of Surgery, Central Manchester University Hospitals NHS Foundation Trust and University of Manchester, Manchester, UK
| | - Juul Wijnen
- Department of Clinical Genetics and Department of Human Genetics Leiden University Medical Centre, Leiden, The Netherlands
| | - Mark Jenkins
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Parkville, Victoria, Australia
| | - Kate Green
- Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Fiona Lalloo
- Manchester Centre for Genomic Medicine, Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - Lone Sunde
- The Danish Hereditary Non-polyposis Colorectal Cancer Register, Clinical Research Centre, Copenhagen University Hospital, Hvidovre, Denmark
- Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Miriam Mints
- Division of Obstetrics and Gynecology, Department of Women's and Children's health, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Lucio Bertario
- Unit of Hereditary Digestive Tract Tumors IRCCS, Istituto Nazionale Tumori, Milan, Italy
| | - Marta Pineda
- Hereditary Cancer Program, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Matilde Navarro
- Hereditary Cancer Program, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Monika Morak
- Medizinische Klinik und Poliklinik IV, Campus Innenstadt, Klinikum der Universität München, Munich, Germany
- MGZ—Medizinisch Genetisches Zentrum, Munich, Germany
| | - Laura Renkonen-Sinisalo
- Department of Surgery, Helsinki University Hospital, Helsinki, Finland
- Genome-Scale Biology Research Program, University of Helsinki, Helsinki, Finland
| | - Ian M Frayling
- Institute of Medical Genetics, Cardiff University School of Medicine, Cardiff, UK
| | - John-Paul Plazzer
- Colorectal Medicine and Genetics, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Kirsi Pylvanainen
- Department of Education and Science, Central Finland Health Care District, Jyväskylä, Finland
| | - Maurizio Genuardi
- Institute of Genomic Medicine, “A. Gemelli” Faculty of Medicine, Catholic University of the Sacred Heart, Rome, Italy
| | - Jukka-Pekka Mecklin
- Department of Education and Science, Central Finland Health Care District, Jyväskylä, Finland
- University of Eastern Finland, Jyvaskyla, Finland
| | - Gabriela Möslein
- Surgical Center for Hereditary Tumors, HELIOS University Clinic Wuppertal, University Witten-Herdecke, Wuppertal, Germany
| | - Julian R Sampson
- Institute of Medical Genetics, Cardiff University School of Medicine, Cardiff, UK
| | - Gabriel Capella
- Hereditary Cancer Program, Institut Català d'Oncologia-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
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