1
|
Ho WK, Hassan NT, Yoon SY, Yang X, Lim JM, Binte Ishak ND, Ho PJ, Wijaya EA, Ng PPS, Luccarini C, Allen J, Tai MC, Chiang J, Zhang Z, See MH, Thong MK, Woo YL, Dunning AM, Hartman M, Yip CH, Mohd Taib NA, Easton DF, Li J, Ngeow J, Antoniou AC, Teo SH. Age-specific breast and ovarian cancer risks associated with germline BRCA1 or BRCA2 pathogenic variants - an Asian study of 572 families. Lancet Reg Health West Pac 2024; 44:101017. [PMID: 38333895 PMCID: PMC10851205 DOI: 10.1016/j.lanwpc.2024.101017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/28/2023] [Accepted: 01/11/2024] [Indexed: 02/10/2024]
Abstract
Background Clinical management of Asian BRCA1 and BRCA2 pathogenic variants (PV) carriers remains challenging due to imprecise age-specific breast (BC) and ovarian cancer (OC) risks estimates. We aimed to refine these estimates using six multi-ethnic studies in Asia. Methods Data were collected on 271 BRCA1 and 301 BRCA2 families from Malaysia and Singapore, ascertained through population/hospital-based case-series (88%) and genetic clinics (12%). Age-specific cancer risks were estimated using a modified segregation analysis method, adjusted for ascertainment. Findings BC and OC relative risks (RRs) varied across age groups for both BRCA1 and BRCA2. The age-specific RR estimates were similar across ethnicities and country of residence. For BRCA1 carriers of Malay, Indian and Chinese ancestry born between 1950 and 1959 in Malaysia, the cumulative risk (95% CI) of BC by age 80 was 40% (36%-44%), 49% (44%-53%) and 55% (51%-60%), respectively. The corresponding estimates for BRCA2 were 29% (26-32%), 36% (33%-40%) and 42% (38%-45%). The corresponding cumulative BC risks for Singapore residents from the same birth cohort, where the underlying population cancer incidences are higher compared to Malaysia, were higher, varying by ancestry group between 57 and 61% for BRCA1, and between 43 and 47% for BRCA2 carriers. The cumulative risk of OC by age 80 was 31% (27-36%) for BRCA1 and 12% (10%-15%) for BRCA2 carriers in Malaysia born between 1950 and 1959; and 42% (34-50%) for BRCA1 and 20% (14-27%) for BRCA2 carriers of the same birth cohort in Singapore. There was evidence of increased BC and OC risks for women from >1960 birth cohorts (p-value = 3.6 × 10-5 for BRCA1 and 0.018 for BRCA2). Interpretation The absolute age-specific cancer risks of Asian carriers vary depending on the underlying population-specific cancer incidences, and hence should be customised to allow for more accurate cancer risk management. Funding Wellcome Trust [grant no: v203477/Z/16/Z]; CRUK (PPRPGM-Nov20∖100002).
Collapse
Affiliation(s)
- Weang-Kee Ho
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih, 43500, Selangor, Malaysia
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Nur Tiara Hassan
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Sook-Yee Yoon
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Xin Yang
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
| | - Joanna M.C. Lim
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | | | - Peh Joo Ho
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A∗STAR), 60 Biopolis Street, Genome, #02-01, Singapore, 138672, Singapore
| | - Eldarina A. Wijaya
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Patsy Pei-Sze Ng
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Craig Luccarini
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, 2 Worts' Causeway, CB1 8RN, Cambridge, UK
| | - Jamie Allen
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, UK
| | - Mei-Chee Tai
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Jianbang Chiang
- Cancer Genetics Service, National Cancer Centre Singapore, Singapore
| | - Zewen Zhang
- Cancer Genetics Service, National Cancer Centre Singapore, Singapore
| | - Mee-Hoong See
- Department of Surgery, Faculty of Medicine, University of Malaya, Jalan Universiti, Kuala Lumpur, 50630, Malaysia
| | - Meow-Keong Thong
- Genetic Medicine Unit, University of Malaya Medical Center, Kuala Lumpur, Malaysia
| | - Yin-Ling Woo
- Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Alison M. Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, 2 Worts' Causeway, CB1 8RN, Cambridge, UK
| | - Mikael Hartman
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
- Department of Surgery, National University Hospital and National University Health System, Singapore, Singapore
| | - Cheng-Har Yip
- Subang Jaya Medical Centre, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Nur Aishah Mohd Taib
- Department of Surgery, Faculty of Medicine, University of Malaya, Jalan Universiti, Kuala Lumpur, 50630, Malaysia
- University Malaya Cancer Research Institute, 50603, Kuala Lumpur, Malaysia
| | - Douglas F. Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, 2 Worts' Causeway, CB1 8RN, Cambridge, UK
| | - Jingmei Li
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore
- Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A∗STAR), 60 Biopolis Street, Genome, #02-01, Singapore, 138672, Singapore
| | - Joanne Ngeow
- Cancer Genetics Service, National Cancer Centre Singapore, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Antonis C. Antoniou
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
| | - Soo-Hwang Teo
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
- Department of Surgery, Faculty of Medicine, University of Malaya, Jalan Universiti, Kuala Lumpur, 50630, Malaysia
| |
Collapse
|
2
|
Tjader NP, Beer AJ, Ramroop J, Tai MC, Ping J, Gandhi T, Dauch C, Neuhausen SL, Ziv E, Sotelo N, Ghanekar S, Meadows O, Paredes M, Gillespie J, Aeilts A, Hampel H, Zheng W, Jia G, Hu Q, Wei L, Liu S, Ambrosone CB, Palmer JR, Carpten JD, Yao S, Stevens P, Ho WK, Pan JW, Fadda P, Huo D, Teo SH, McElroy JP, Toland AE. Association of ESR1 germline variants with TP53 somatic variants in breast tumors in a genome-wide study. medRxiv 2023:2023.12.06.23299442. [PMID: 38106140 PMCID: PMC10723566 DOI: 10.1101/2023.12.06.23299442] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Background In breast tumors, somatic mutation frequencies in TP53 and PIK3CA vary by tumor subtype and ancestry. HER2 positive and triple negative breast cancers (TNBC) have a higher frequency of TP53 somatic mutations than other subtypes. PIK3CA mutations are more frequently observed in hormone receptor positive tumors. Emerging data suggest tumor mutation status is associated with germline variants and genetic ancestry. We aimed to identify germline variants that are associated with somatic TP53 or PIK3CA mutation status in breast tumors. Methods A genome-wide association study was conducted using breast cancer mutation status of TP53 and PIK3CA and functional mutation categories including TP53 gain of function (GOF) and loss of function mutations and PIK3CA activating/hotspot mutations. The discovery analysis consisted of 2850 European ancestry women from three datasets. Germline variants showing evidence of association with somatic mutations were selected for validation analyses based on predicted function, allele frequency, and proximity to known cancer genes or risk loci. Candidate variants were assessed for association with mutation status in a multi-ancestry validation study, a Malaysian study, and a study of African American/Black women with TNBC. Results The discovery Germline x Mutation (GxM) association study found five variants associated with one or more TP53 phenotypes with P values <1×10-6, 33 variants associated with one or more TP53 phenotypes with P values <1×10-5, and 44 variants associated with one or more PIK3CA phenotypes with P values <1×10-5. In the multi-ancestry and Malaysian validation studies, germline ESR1 locus variant, rs9383938, was associated with the presence of TP53 mutations overall (P values 6.8×10-5 and 9.8×10-8, respectively) and TP53 GOF mutations (P value 8.4×10-6). Multiple variants showed suggestive evidence of association with PIK3CA mutation status in the validation studies, but none were significant after correction for multiple comparisons. Conclusions We found evidence that germline variants were associated with TP53 and PIK3CA mutation status in breast cancers. Variants near the estrogen receptor alpha gene, ESR1, were significantly associated with overall TP53 mutations and GOF mutations. Larger multi-ancestry studies are needed to confirm these findings and determine if these variants contribute to ancestry-specific differences in mutation frequency.
Collapse
Affiliation(s)
- Nijole P. Tjader
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Abigail J. Beer
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Johnny Ramroop
- The City College of New York, City University of New York, New York, NY, USA
| | - Mei-Chee Tai
- Cancer Research Malaysia, Subang Jaya, Selangor 47500, Malaysia
| | - Jie Ping
- Division of Epidemiology, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Nashville, TN 37203
| | - Tanish Gandhi
- Biomedical Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
- The Ohio State University Medical School, Columbus, OH, 43210, USA
| | - Cara Dauch
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA
- The Ohio State University Wexner Medical Center, Clinical Trials Office, Columbus, OH 43210, USA
| | - Susan L. Neuhausen
- Beckman Research Institute of City of Hope, Department of Population Sciences, Duarte, CA, USA
| | - Elad Ziv
- University of California, Helen Diller Family Comprehensive Cancer Center, San Francisco, San Francisco, CA, USA
- University of California, Department of Medicine, San Francisco, San Francisco, CA, USA
- University of California San Francisco, Institute for Human Genetics, San Francisco, CA, USA
| | - Nereida Sotelo
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Shreya Ghanekar
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Owen Meadows
- Biomedical Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Monica Paredes
- Biomedical Sciences, The Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - Jessica Gillespie
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Amber Aeilts
- Department of Internal Medicine, Division of Human Genetics, The Ohio State University, Columbus, OH, 43210, USA
| | - Heather Hampel
- Department of Medical Oncology & Therapeutics Research, City of Hope National Medical Center, Duarte, CA, USA
| | - Wei Zheng
- Division of Epidemiology, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Nashville, TN 37203
| | - Guochong Jia
- Division of Epidemiology, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Nashville, TN 37203
| | - Qiang Hu
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Lei Wei
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Song Liu
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Christine B. Ambrosone
- Department of Cancer Control and Prevention, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Julie R. Palmer
- Slone Epidemiology Center at Boston University, Boston, MA, USA
| | - John D. Carpten
- City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Department of Integrative Translational Sciences, City of Hope, Duarte, CA
| | - Song Yao
- Department of Cancer Control and Prevention, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Patrick Stevens
- The Ohio State University Comprehensive Cancer Center, Bioinformatics Shared Resource, Columbus, OH, USA
| | - Weang-Kee Ho
- Cancer Research Malaysia, Subang Jaya, Selangor 47500, Malaysia
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor 43500, Malaysia
| | - Jia Wern Pan
- Cancer Research Malaysia, Subang Jaya, Selangor 47500, Malaysia
| | - Paolo Fadda
- The Ohio State University Comprehensive Cancer Center, Genomics Shared Resource, Columbus, OH, USA
| | - Dezheng Huo
- Department of Public Health Sciences, University of Chicago, Chicago, IL, 60637, USA
| | - Soo-Hwang Teo
- Cancer Research Malaysia, Subang Jaya, Selangor 47500, Malaysia
- Faculty of Medicine, University Malaya Cancer Research Institute, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Joseph Paul McElroy
- The Ohio State University Center for Biostatistics, Department of Biomedical Informatics, Columbus, OH, USA
| | - Amanda Ewart Toland
- Department of Cancer Biology and Genetics, The Ohio State University College of Medicine, Columbus, OH 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- Department of Internal Medicine, Division of Human Genetics, The Ohio State University, Columbus, OH, 43210, USA
| |
Collapse
|
3
|
Jee YH, Ho WK, Park S, Easton DF, Teo SH, Jung KJ, Kraft P. Polygenic risk scores for prediction of breast cancer in Korean women. Int J Epidemiol 2023; 52:796-805. [PMID: 36343017 PMCID: PMC10244045 DOI: 10.1093/ije/dyac206] [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: 11/21/2021] [Accepted: 10/31/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Polygenic risk scores (PRSs) for breast cancer, developed using European and Asian genome-wide association studies (GWAS), have been shown to have good discrimination in Asian women. However, prospective calibration of absolute risk prediction models, based on a PRS or PRS combined with lifestyle, clinical and environmental factors, in Asian women is limited. METHODS We consider several PRSs trained using European and/or Asian GWAS. For each PRS, we evaluate the discrimination and calibration of three absolute risk models among 41 031 women from the Korean Cancer Prevention Study (KCPS)-II Biobank: (i) a model using incidence, mortality and risk factor distributions (reference inputs) among US women and European relative risks; (ii) a recalibrated model, using Korean reference but European relative risks; and (iii) a fully Korean-based model using Korean reference and relative risk estimates from KCPS. RESULTS All Asian and European PRS improved discrimination over lifestyle, clinical and environmental (Qx) factors in Korean women. US-based absolute risk models overestimated the risks for women aged ≥50 years, and this overestimation was larger for models that only included PRS (expected-to-observed ratio E/O = 1.2 for women <50, E/O = 2.7 for women ≥50). Recalibrated and Korean-based risk models had better calibration in the large, although the risk in the highest decile was consistently overestimated. Absolute risk projections suggest that risk-reducing lifestyle changes would lead to larger absolute risk reductions among women at higher PRS. CONCLUSIONS Absolute risk models incorporating PRS trained in European and Asian GWAS and population-appropriate average age-specific incidences may be useful for risk-stratified interventions in Korean women.
Collapse
Affiliation(s)
- Yon Ho Jee
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Weang-Kee Ho
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Selangor, Malaysia
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Sohee Park
- Department of Biostatistics, Yonsei University Graduate School of Public Health, Seoul, Republic of Korea
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
| | - Soo-Hwang Teo
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
- Sime Darby Medical Centre, Subang Jaya, Selangor, Malaysia
| | - Keum Ji Jung
- Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea
- Nuffield Department Population Health, University of Oxford, Oxford, UK
| | - Peter Kraft
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| |
Collapse
|
4
|
Mueller SH, Lai AG, Valkovskaya M, Michailidou K, Bolla MK, Wang Q, Dennis J, Lush M, Abu-Ful Z, Ahearn TU, Andrulis IL, Anton-Culver H, Antonenkova NN, Arndt V, Aronson KJ, Augustinsson A, Baert T, Freeman LEB, Beckmann MW, Behrens S, Benitez J, Bermisheva M, Blomqvist C, Bogdanova NV, Bojesen SE, Bonanni B, Brenner H, Brucker SY, Buys SS, Castelao JE, Chan TL, Chang-Claude J, Chanock SJ, Choi JY, Chung WK, Colonna SV, Cornelissen S, Couch FJ, Czene K, Daly MB, Devilee P, Dörk T, Dossus L, Dwek M, Eccles DM, Ekici AB, Eliassen AH, Engel C, Evans DG, Fasching PA, Fletcher O, Flyger H, Gago-Dominguez M, Gao YT, García-Closas M, García-Sáenz JA, Genkinger J, Gentry-Maharaj A, Grassmann F, Guénel P, Gündert M, Haeberle L, Hahnen E, Haiman CA, Håkansson N, Hall P, Harkness EF, Harrington PA, Hartikainen JM, Hartman M, Hein A, Ho WK, Hooning MJ, Hoppe R, Hopper JL, Houlston RS, Howell A, Hunter DJ, Huo D, Ito H, Iwasaki M, Jakubowska A, Janni W, John EM, Jones ME, Jung A, Kaaks R, Kang D, Khusnutdinova EK, Kim SW, Kitahara CM, Koutros S, Kraft P, Kristensen VN, Kubelka-Sabit K, Kurian AW, Kwong A, Lacey JV, Lambrechts D, Le Marchand L, Li J, Linet M, Lo WY, Long J, Lophatananon A, Mannermaa A, Manoochehri M, Margolin S, Matsuo K, Mavroudis D, Menon U, Muir K, Murphy RA, Nevanlinna H, Newman WG, Niederacher D, O'Brien KM, Obi N, Offit K, Olopade OI, Olshan AF, Olsson H, Park SK, Patel AV, Patel A, Perou CM, Peto J, Pharoah PDP, Plaseska-Karanfilska D, Presneau N, Rack B, Radice P, Ramachandran D, Rashid MU, Rennert G, Romero A, Ruddy KJ, Ruebner M, Saloustros E, Sandler DP, Sawyer EJ, Schmidt MK, Schmutzler RK, Schneider MO, Scott C, Shah M, Sharma P, Shen CY, Shu XO, Simard J, Surowy H, Tamimi RM, Tapper WJ, Taylor JA, Teo SH, Teras LR, Toland AE, Tollenaar RAEM, Torres D, Torres-Mejía G, Troester MA, Truong T, Vachon CM, Vijai J, Weinberg CR, Wendt C, Winqvist R, Wolk A, Wu AH, Yamaji T, Yang XR, Yu JC, Zheng W, Ziogas A, Ziv E, Dunning AM, Easton DF, Hemingway H, Hamann U, Kuchenbaecker KB. Aggregation tests identify new gene associations with breast cancer in populations with diverse ancestry. Genome Med 2023; 15:7. [PMID: 36703164 PMCID: PMC9878779 DOI: 10.1186/s13073-022-01152-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 05/05/2022] [Accepted: 12/16/2022] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Low-frequency variants play an important role in breast cancer (BC) susceptibility. Gene-based methods can increase power by combining multiple variants in the same gene and help identify target genes. METHODS We evaluated the potential of gene-based aggregation in the Breast Cancer Association Consortium cohorts including 83,471 cases and 59,199 controls. Low-frequency variants were aggregated for individual genes' coding and regulatory regions. Association results in European ancestry samples were compared to single-marker association results in the same cohort. Gene-based associations were also combined in meta-analysis across individuals with European, Asian, African, and Latin American and Hispanic ancestry. RESULTS In European ancestry samples, 14 genes were significantly associated (q < 0.05) with BC. Of those, two genes, FMNL3 (P = 6.11 × 10-6) and AC058822.1 (P = 1.47 × 10-4), represent new associations. High FMNL3 expression has previously been linked to poor prognosis in several other cancers. Meta-analysis of samples with diverse ancestry discovered further associations including established candidate genes ESR1 and CBLB. Furthermore, literature review and database query found further support for a biologically plausible link with cancer for genes CBLB, FMNL3, FGFR2, LSP1, MAP3K1, and SRGAP2C. CONCLUSIONS Using extended gene-based aggregation tests including coding and regulatory variation, we report identification of plausible target genes for previously identified single-marker associations with BC as well as the discovery of novel genes implicated in BC development. Including multi ancestral cohorts in this study enabled the identification of otherwise missed disease associations as ESR1 (P = 1.31 × 10-5), demonstrating the importance of diversifying study cohorts.
Collapse
Affiliation(s)
| | - Alvina G Lai
- Institute of Health Informatics, University College London, London, UK
| | | | - Kyriaki Michailidou
- Biostatistics Unit, The Cyprus Institute of Neurology and Genetics, 2371, Nicosia, Cyprus
- Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology and Genetics, 2371, Nicosia, Cyprus
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Manjeet K Bolla
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Qin Wang
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Joe Dennis
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Michael Lush
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Zomoruda Abu-Ful
- Clalit National Cancer Control Center, Carmel Medical Center and Technion Faculty of Medicine, 35254, Haifa, Israel
| | - Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20850, USA
| | - Irene L Andrulis
- Fred A. Litwin Center for Cancer Genetics, Lunenfeld-Tanenbaum Research Institute of Mount Sinai Hospital, Toronto, ON, M5G 1X5, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Hoda Anton-Culver
- Department of Medicine, Genetic Epidemiology Research Institute, University of California Irvine, Irvine, CA, 92617, USA
| | - Natalia N Antonenkova
- N.N. Alexandrov Research Institute of Oncology and Medical Radiology, 223040, Minsk, Belarus
| | - Volker Arndt
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Kristan J Aronson
- Department of Public Health Sciences, and Cancer Research Institute, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Annelie Augustinsson
- Department of Cancer Epidemiology, Clinical Sciences, Lund University, 222 42, Lund, Sweden
| | - Thais Baert
- Leuven Multidisciplinary Breast Center, Department of Oncology, Leuven Cancer Institute, University Hospitals Leuven, 3000, Louvain, Belgium
| | - Laura E Beane Freeman
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20850, USA
| | - Matthias W Beckmann
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), 91054, Erlangen, Germany
| | - Sabine Behrens
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Javier Benitez
- Biomedical Network On Rare Diseases (CIBERER), 28029, Madrid, Spain
- Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO), 28029, Madrid, Spain
| | - Marina Bermisheva
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, 450054, Russia
| | - Carl Blomqvist
- Department of Oncology, Helsinki University Hospital, University of Helsinki, 00290, Helsinki, Finland
- Department of Oncology, Örebro University Hospital, 70185, Örebro, Sweden
| | - Natalia V Bogdanova
- N.N. Alexandrov Research Institute of Oncology and Medical Radiology, 223040, Minsk, Belarus
- Department of Radiation Oncology, Hannover Medical School, 30625, Hannover, Germany
- Gynaecology Research Unit, Hannover Medical School, 30625, Hannover, Germany
| | - Stig E Bojesen
- Copenhagen General Population Study, Herlev and Gentofte Hospital, Copenhagen University Hospital, 2730, Herlev, Denmark
- Department of Clinical Biochemistry, Herlev and Gentofte Hospital, Copenhagen University Hospital, 2730, Herlev, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, 2200, Copenhagen, Denmark
| | - Bernardo Bonanni
- Division of Cancer Prevention and Genetics, IEO, European Institute of Oncology IRCCS, 20141, Milan, Italy
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
- Division of Preventive Oncology, German Cancer Research Center (DKFZ), National Center for Tumor Diseases (NCT), 69120, Heidelberg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Sara Y Brucker
- Department of Gynecology and Obstetrics, University of Tübingen, 72076, Tübingen, Germany
| | - Saundra S Buys
- Department of Medicine, Huntsman Cancer Institute, Salt Lake City, UT, 84112, USA
| | - Jose E Castelao
- Oncology and Genetics Unit, Instituto de Investigación Sanitaria Galicia Sur (IISGS), Xerencia de Xestion Integrada de Vigo-SERGAS, 36312, Vigo, Spain
| | - Tsun L Chan
- Hong Kong Hereditary Breast Cancer Family Registry, Hong Kong, China
- Department of Molecular Pathology, Hong Kong Sanatorium and Hospital, Hong Kong, China
| | - Jenny Chang-Claude
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
- Cancer Epidemiology Group, University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20850, USA
| | - Ji-Yeob Choi
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, 03080, Korea
- Cancer Research Institute, Seoul National University, Seoul, 03080, Korea
- Institute of Health Policy and Management, Seoul National University Medical Research Center, Seoul, 03080, Korea
| | - Wendy K Chung
- Departments of Pediatrics and Medicine, Columbia University, New York, NY, 10032, USA
| | - Sarah V Colonna
- Department of Medicine, Huntsman Cancer Institute, Salt Lake City, UT, 84112, USA
| | - Sten Cornelissen
- Division of Molecular Pathology, The Netherlands Cancer Institute - Antoni Van Leeuwenhoek Hospital, Amsterdam, 1066 CX, The Netherlands
| | - Fergus J Couch
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Kamila Czene
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 65, Stockholm, Sweden
| | - Mary B Daly
- Department of Clinical Genetics, Fox Chase Cancer Center, Philadelphia, PA, 19111, USA
| | - Peter Devilee
- Department of Pathology, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands
- Department of Human Genetics, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands
| | - Thilo Dörk
- Gynaecology Research Unit, Hannover Medical School, 30625, Hannover, Germany
| | - Laure Dossus
- Nutrition and Metabolism Section, International Agency for Research On Cancer (IARC-WHO), 69372, Lyon, France
| | - Miriam Dwek
- School of Life Sciences, University of Westminster, London, W1W 6UW, UK
| | - Diana M Eccles
- Faculty of Medicine, University of Southampton, Southampton, SO17 1BJ, UK
| | - Arif B Ekici
- Institute of Human Genetics, Comprehensive Cancer Center Erlangen-EMN, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), 91054, Erlangen, Germany
| | - A Heather Eliassen
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Christoph Engel
- Institute for Medical Informatics, Statistics and Epidemiology, University of Leipzig, 04107, Leipzig, Germany
- LIFE - Leipzig Research Centre for Civilization Diseases, University of Leipzig, 04103, Leipzig, Germany
| | - D Gareth Evans
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9WL, UK
- North West Genomics Laboratory Hub, Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, M13 9WL, UK
| | - Peter A Fasching
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), 91054, Erlangen, Germany
- David Geffen School of Medicine, Department of Medicine Division of Hematology and Oncology, University of California at Los Angeles, Los Angeles, CA, 90095, USA
| | - Olivia Fletcher
- The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, SW7 3RP, UK
| | - Henrik Flyger
- Department of Breast Surgery, Herlev and Gentofte Hospital, Copenhagen University Hospital, 2730, Herlev, Denmark
| | - Manuela Gago-Dominguez
- Genomic Medicine Group, International Cancer Genetics and Epidemiology Group, Fundación Pœblica Galega de Medicina Xenómica, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), Complejo Hospitalario Universitario de Santiago, SERGAS, 15706, Santiago de Compostela, Spain
- Moores Cancer Center, University of California San Diego, La Jolla, CA, 92037, USA
| | - Yu-Tang Gao
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, 20032, China
| | - Montserrat García-Closas
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20850, USA
| | - José A García-Sáenz
- Medical Oncology Department, Centro Investigación Biomédica en Red de Cáncer (CIBERONC), Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), 28040, Madrid, Spain
| | - Jeanine Genkinger
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, 10032, USA
| | | | - Felix Grassmann
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 65, Stockholm, Sweden
- Health and Medical University, 14471, Potsdam, Germany
| | - Pascal Guénel
- Center for Research in Epidemiology and Population Health (CESP), Team Exposome and Heredity, INSERM, University Paris-Saclay, 94805, Villejuif, France
| | - Melanie Gündert
- Molecular Epidemiology Group, German Cancer Research Center (DKFZ), C08069120, Heidelberg, Germany
- Molecular Biology of Breast Cancer, University Womens Clinic Heidelberg, University of Heidelberg, 69120, Heidelberg, Germany
- Institute of Diabetes Research, Helmholtz Zentrum München, German Research Center for Environmental Health, 85764, Neuherberg, Germany
| | - Lothar Haeberle
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), 91054, Erlangen, Germany
| | - Eric Hahnen
- Center for Familial Breast and Ovarian Cancer, Faculty of Medicine, University Hospital Cologne, University of Cologne, 50937, Cologne, Germany
- Center for Integrated Oncology (CIO), Faculty of Medicine, University Hospital Cologne, University of Cologne, 50937, Cologne, Germany
| | - Christopher A Haiman
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Niclas Håkansson
- Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Per Hall
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, 171 65, Stockholm, Sweden
- Department of Oncology, 118 83, Sšdersjukhuset, Stockholm, Sweden
| | - Elaine F Harkness
- Division of Informatics, Imaging and Data Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
- Nightingale and Genesis Prevention Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, M23 9LT, UK
- NIHR Manchester Biomedical Research Unit, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, M13 9WL, UK
| | - Patricia A Harrington
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Jaana M Hartikainen
- Translational Cancer Research Area, University of Eastern Finland, 70210, Kuopio, Finland
- Institute of Clinical Medicine, Pathology and Forensic Medicine, University of Eastern Finland, 70210, Kuopio, Finland
| | - Mikael Hartman
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore, 119077, Singapore
- Department of Surgery, National University Health System, Singapore, 119228, Singapore
| | - Alexander Hein
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), 91054, Erlangen, Germany
| | - Weang-Kee Ho
- Department of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia Campus, 43500, Semenyih, Selangor, Malaysia
- Breast Cancer Research Programme, Cancer Research Malaysia, Subang Jaya, 47500, Selangor, Malaysia
| | - Maartje J Hooning
- Department of Medical Oncology, Erasmus MC Cancer Institute, Rotterdam, 3015 GD, The Netherlands
| | - Reiner Hoppe
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376, Stuttgart, Germany
- University of Tübingen, 72074, Tübingen, Germany
| | - John L Hopper
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Richard S Houlston
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Anthony Howell
- Division of Cancer Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - David J Hunter
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Nuffield Department of Population Health, University of Oxford, Oxford, OX3 7LF, UK
| | - Dezheng Huo
- Center for Clinical Cancer Genetics, The University of Chicago, Chicago, IL, 60637, USA
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan
- Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - Motoki Iwasaki
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center Institute for Cancer Control, Tokyo, 104-0045, Japan
| | - Anna Jakubowska
- Department of Genetics and Pathology, Pomeranian Medical University, 71-252, Szczecin, Poland
- Independent Laboratory of Molecular Biology and Genetic Diagnostics, Pomeranian Medical University, 71-252, Szczecin, Poland
| | - Wolfgang Janni
- Department of Gynaecology and Obstetrics, University Hospital Ulm, 89075, Ulm, Germany
| | - Esther M John
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Medicine, Division of Oncology, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94304, USA
| | - Michael E Jones
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London, SM2 5NG, UK
| | - Audrey Jung
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Daehee Kang
- Cancer Research Institute, Seoul National University, Seoul, 03080, Korea
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, 03080, Korea
| | - Elza K Khusnutdinova
- Institute of Biochemistry and Genetics, Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, 450054, Russia
- Department of Genetics and Fundamental Medicine, Bashkir State University, Ufa, 450000, Russia
| | - Sung-Won Kim
- Department of Surgery, Daerim Saint Mary's Hospital, Seoul, 07442, Korea
| | - Cari M Kitahara
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Stella Koutros
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20850, USA
| | - Peter Kraft
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Program in Genetic Epidemiology and Statistical Genetics, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
| | - Vessela N Kristensen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0450, Oslo, Norway
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, 0379, Oslo, Norway
| | - Katerina Kubelka-Sabit
- Department of Histopathology and Cytology, Clinical Hospital Acibadem Sistina, Skopje, 1000, Republic of North Macedonia
| | - Allison W Kurian
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA, 94305, USA
- Department of Medicine, Division of Oncology, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, 94304, USA
| | - Ava Kwong
- Hong Kong Hereditary Breast Cancer Family Registry, Hong Kong, China
- Department of Surgery, The University of Hong Kong, Hong Kong, China
- Department of Surgery and Cancer Genetics Center, Hong Kong Sanatorium and Hospital, Hong Kong, China
| | - James V Lacey
- Department of Computational and Quantitative Medicine, City of Hope, Duarte, CA, 91010, USA
- City of Hope Comprehensive Cancer Center, City of Hope, Duarte, CA, 91010, USA
| | - Diether Lambrechts
- VIB Center for Cancer Biology, 3001, Louvain, Belgium
- Laboratory for Translational Genetics, Department of Human Genetics, University of Leuven, 3000, Louvain, Belgium
| | - Loic Le Marchand
- Epidemiology Program, University of Hawaii Cancer Center, Honolulu, HI, 96813, USA
| | - Jingmei Li
- Human Genetics Division, Genome Institute of Singapore, Singapore, 138672, Singapore
| | - Martha Linet
- Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Wing-Yee Lo
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, 70376, Stuttgart, Germany
- University of Tübingen, 72074, Tübingen, Germany
| | - Jirong Long
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Artitaya Lophatananon
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
| | - Arto Mannermaa
- Translational Cancer Research Area, University of Eastern Finland, 70210, Kuopio, Finland
- Institute of Clinical Medicine, Pathology and Forensic Medicine, University of Eastern Finland, 70210, Kuopio, Finland
- Biobank of Eastern Finland, Kuopio University Hospital, Kuopio, Finland
| | - Mehdi Manoochehri
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Sara Margolin
- Department of Oncology, 118 83, Sšdersjukhuset, Stockholm, Sweden
- Department of Clinical Science and Education, Sšdersjukhuset, Karolinska Institutet, 118 83, Stockholm, Sweden
| | - Keitaro Matsuo
- Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, 464-8681, Japan
| | - Dimitrios Mavroudis
- Department of Medical Oncology, University Hospital of Heraklion, 711 10, Heraklion, Greece
| | - Usha Menon
- Institute of Clinical Trials and Methodology, University College London, London, WC1V 6LJ, UK
| | - Kenneth Muir
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
| | - Rachel A Murphy
- School of Population and Public Health, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
- Cancer Control Research, BC Cancer, Vancouver, BC, V5Z 1L3, Canada
| | - Heli Nevanlinna
- Department of Obstetrics and Gynecology, Helsinki University Hospital, University of Helsinki, 00290, Helsinki, Finland
| | - William G Newman
- Division of Evolution and Genomic Sciences, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9WL, UK
- North West Genomics Laboratory Hub, Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, M13 9WL, UK
| | - Dieter Niederacher
- Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Heinrich-Heine University Düsseldorf, 40225, Düsseldorf, Germany
| | - Katie M O'Brien
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, 27709, USA
| | - Nadia Obi
- Institute for Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Kenneth Offit
- Clinical Genetics Research Lab, Department of Cancer Biology and Genetics, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | | | - Andrew F Olshan
- Department of Epidemiology, Gillings School of Global Public Health and UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Håkan Olsson
- Department of Cancer Epidemiology, Clinical Sciences, Lund University, 222 42, Lund, Sweden
| | - Sue K Park
- Cancer Research Institute, Seoul National University, Seoul, 03080, Korea
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, 03080, Korea
- Integrated Major in Innovative Medical Science, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Alpa V Patel
- Department of Population Science, American Cancer Society, Atlanta, GA, 30303, USA
| | - Achal Patel
- Department of Epidemiology, Gillings School of Global Public Health and UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Charles M Perou
- Department of Genetics, Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Julian Peto
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
| | - Paul D P Pharoah
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Dijana Plaseska-Karanfilska
- Research Centre for Genetic Engineering and Biotechnology "Georgi D. Efremov", MASA, Skopje, 1000, Republic of North Macedonia
| | - Nadege Presneau
- School of Life Sciences, University of Westminster, London, W1W 6UW, UK
| | - Brigitte Rack
- Department of Gynaecology and Obstetrics, University Hospital Ulm, 89075, Ulm, Germany
| | - Paolo Radice
- Unit of Molecular Bases of Genetic Risk and Genetic Testing, Department of Research, Fondazione IRCCS Istituto Nazionale Dei Tumori (INT), 20133, Milan, Italy
| | - Dhanya Ramachandran
- Gynaecology Research Unit, Hannover Medical School, 30625, Hannover, Germany
| | - Muhammad U Rashid
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
- Department of Basic Sciences, Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH & RC), Lahore, 54000, Pakistan
| | - Gad Rennert
- Clalit National Cancer Control Center, Carmel Medical Center and Technion Faculty of Medicine, 35254, Haifa, Israel
| | - Atocha Romero
- Medical Oncology Department, Hospital Universitario Puerta de Hierro, 28222, Madrid, Spain
| | - Kathryn J Ruddy
- Department of Oncology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Matthias Ruebner
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), 91054, Erlangen, Germany
| | | | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, 27709, USA
| | - Elinor J Sawyer
- School of Cancer and Pharmaceutical Sciences, Comprehensive Cancer Centre, Guy's Campus, King's College London, London, SE1 9RT, UK
| | - Marjanka K Schmidt
- Division of Molecular Pathology, The Netherlands Cancer Institute - Antoni Van Leeuwenhoek Hospital, Amsterdam, 1066 CX, The Netherlands
- Division of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute - Antoni Van Leeuwenhoek Hospital, Amsterdam, 1066 CX, The Netherlands
| | - Rita K Schmutzler
- Center for Familial Breast and Ovarian Cancer, Faculty of Medicine, University Hospital Cologne, University of Cologne, 50937, Cologne, Germany
- Center for Integrated Oncology (CIO), Faculty of Medicine, University Hospital Cologne, University of Cologne, 50937, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931, Cologne, Germany
| | - Michael O Schneider
- Department of Gynecology and Obstetrics, Comprehensive Cancer Center Erlangen-EMN, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), 91054, Erlangen, Germany
| | - Christopher Scott
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, 55905, USA
| | - Mitul Shah
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Priyanka Sharma
- Department of Internal Medicine, Division of Medical Oncology, University of Kansas Medical Center, Westwood, KS, 66205, USA
| | - Chen-Yang Shen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 115, Taiwan
- School of Public Health, China Medical University, Taichung, Taiwan
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Jacques Simard
- Genomics Center, Centre Hospitalier Universitaire de Québec - Université Laval Research Center, Québec City, QC, G1V 4G2, Canada
| | - Harald Surowy
- Molecular Epidemiology Group, German Cancer Research Center (DKFZ), C08069120, Heidelberg, Germany
- Molecular Biology of Breast Cancer, University Womens Clinic Heidelberg, University of Heidelberg, 69120, Heidelberg, Germany
| | - Rulla M Tamimi
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, 10065, USA
| | - William J Tapper
- Faculty of Medicine, University of Southampton, Southampton, SO17 1BJ, UK
| | - Jack A Taylor
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, 27709, USA
- Epigenetic and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, 27709, USA
| | - Soo Hwang Teo
- Breast Cancer Research Programme, Cancer Research Malaysia, Subang Jaya, 47500, Selangor, Malaysia
- Department of Surgery, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Lauren R Teras
- Department of Population Science, American Cancer Society, Atlanta, GA, 30303, USA
| | - Amanda E Toland
- Department of Cancer Biology and Genetics, The Ohio State University, Columbus, OH, 43210, USA
| | - Rob A E M Tollenaar
- Department of Surgery, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands
| | - Diana Torres
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
- Institute of Human Genetics, Pontificia Universidad Javeriana, 110231, Bogota, Colombia
| | - Gabriela Torres-Mejía
- Center for Population Health Research, National Institute of Public Health, 62100, Cuernavaca, Morelos, Mexico
| | - Melissa A Troester
- Department of Epidemiology, Gillings School of Global Public Health and UNC Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Thérèse Truong
- Center for Research in Epidemiology and Population Health (CESP), Team Exposome and Heredity, INSERM, University Paris-Saclay, 94805, Villejuif, France
| | - Celine M Vachon
- Department of Quantitative Health Sciences, Division of Epidemiology, Mayo Clinic, Rochester, MN, 55905, USA
| | - Joseph Vijai
- Clinical Genetics Research Lab, Department of Cancer Biology and Genetics, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Clarice R Weinberg
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, 27709, USA
| | - Camilla Wendt
- Department of Clinical Science and Education, Sšdersjukhuset, Karolinska Institutet, 118 83, Stockholm, Sweden
| | - Robert Winqvist
- Laboratory of Cancer Genetics and Tumor Biology, Cancer and Translational Medicine Research Unit, Biocenter Oulu, University of Oulu, 90570, Oulu, Finland
- Laboratory of Cancer Genetics and Tumor Biology, Northern Finland Laboratory Centre Oulu, 90570, Oulu, Finland
| | - Alicja Wolk
- Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden
- Department of Surgical Sciences, Uppsala University, 751 05, Uppsala, Sweden
| | - Anna H Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Taiki Yamaji
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center Institute for Cancer Control, Tokyo, 104-0045, Japan
| | - Xiaohong R Yang
- Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20850, USA
| | - Jyh-Cherng Yu
- Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, 114, Taiwan
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, 37232, USA
| | - Argyrios Ziogas
- Department of Medicine, Genetic Epidemiology Research Institute, University of California Irvine, Irvine, CA, 92617, USA
| | - Elad Ziv
- Department of Medicine, Diller Family Comprehensive Cancer Center, Institute for Human Genetics, UCSF Helen, University of California San Francisco, San Francisco, CA, 94115, USA
| | - Alison M Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, CB1 8RN, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, CB1 8RN, UK
| | - Harry Hemingway
- Institute of Health Informatics, University College London, London, UK
- Health Data Research UK, University College London, London, UK
- University College London Hospitals Biomedical Research Centre (UCLH BRC), London, UK
- The Alan Turing Institute, London, UK
| | - Ute Hamann
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), 69120, Heidelberg, Germany
| | - Karoline B Kuchenbaecker
- Division of Psychiatry, University College London, London, UK.
- UCL Genetics Institute, University College London, London, UK.
| |
Collapse
|
5
|
Jee YH, Ho WK, Park S, Easton D, Teo SH, Jung KJ, Kraft P. Abstract 5903: Polygenic risk scores for prediction of breast cancer in Korean women. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-5903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Polygenic risk scores (PRS) developed in large European GWAS have been shown to perform well in Asian women relative to PRS developed in smaller Asian studies. However, prospective validation of absolute risk prediction models combining lifestyle and PRS in Asian women is limited. We evaluate the calibration of four PRS developed using Asian or European training samples; two PRS were restricted to genome-wide significant SNPs (GRS-11ASN, GRS-136EUR) and two included sub-genome-wide significant SNPs (PRS-42ASN, PRS-209EUR).
Methods: For each PRS, we compared discrimination (area under the curve [AUC]) and calibration (expected-to-observed ratio [E/O]) of three absolute risk models among 41,031 women from the Korean Cancer Prevention Study-II Biobank: (i) a model using incidence, mortality, and risk factor distributions (reference inputs) among U.S. women and European relative risks; (ii) a recalibrated model, using Korean reference but European relative risks; and (iii) a fully Korean-based model using Korean reference and relative risk estimates from KCPS.
Results: All Asian and European PRS improved risk prediction for breast cancer in Korean women (Qx: AUC=0.65, Qx+PRS-42ASN: AUC=0.68, Qx+PRS-209EUR: AUC=0.69 in Korean-based model for age less than 50). We found that the U.S.-based absolute risk models overestimated the risks for women age ≥50 years (PRS-42ASN: E/O=1.93, 95% CI=1.69, 2.19, PRS-209EUR: E/O = 1.92, 95% CI=1.69, 2.19). Our absolute risk projections suggest that risk-reducing lifestyle changes would lead to larger absolute risk reductions among women at higher PRS.
Conclusions: Incorporation of PRS previously developed in Asian and European-ancestry populations can improve discrimination in Korean women. Our finding suggests that PRS may be useful for prioritizing individuals for targeted intervention on their lifestyle such as alcohol intake and obesity. Larger Asian training samples should improve PRS discrimination among Korean women. Further studies are needed to evaluate the value of incorporating additional information on factors into a model in ancestrally diverse populations.
Citation Format: Yon Ho Jee, Weang-Kee Ho, Sohee Park, Douglas Easton, Soo-Hwang Teo, Keum Ji Jung, Peter Kraft. Polygenic risk scores for prediction of breast cancer in Korean women [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 5903.
Collapse
Affiliation(s)
- Yon Ho Jee
- 1Harvard T.H. Chan School of Public Health, Boston, MA
| | - Weang-Kee Ho
- 2University of Nottingham Malaysia, Selangor, Malaysia
| | - Sohee Park
- 3Yonsei University Graduate School of Public Health, Seoul, Republic of Korea
| | | | | | - Keum Ji Jung
- 6Yonsei University Graduate School of Public Health, Oxford, Republic of Korea
| | - Peter Kraft
- 1Harvard T.H. Chan School of Public Health, Boston, MA
| |
Collapse
|
6
|
Ho WK, Tai MC, Dennis J, Shu X, Li J, Ho PJ, Millwood IY, Lin K, Jee YH, Lee SH, Mavaddat N, Bolla MK, Wang Q, Michailidou K, Long J, Wijaya EA, Hassan T, Rahmat K, Tan VKM, Tan BKT, Tan SM, Tan EY, Lim SH, Gao YT, Zheng Y, Kang D, Choi JY, Han W, Lee HB, Kubo M, Okada Y, Namba S, Park SK, Kim SW, Shen CY, Wu PE, Park B, Muir KR, Lophatananon A, Wu AH, Tseng CC, Matsuo K, Ito H, Kwong A, Chan TL, John EM, Kurian AW, Iwasaki M, Yamaji T, Kweon SS, Aronson KJ, Murphy RA, Koh WP, Khor CC, Yuan JM, Dorajoo R, Walters RG, Chen Z, Li L, Lv J, Jung KJ, Kraft P, Pharoah PDB, Dunning AM, Simard J, Shu XO, Yip CH, Taib NAM, Antoniou AC, Zheng W, Hartman M, Easton DF, Teo SH. Polygenic risk scores for prediction of breast cancer risk in Asian populations. Genet Med 2022; 24:586-600. [PMID: 34906514 PMCID: PMC7612481 DOI: 10.1016/j.gim.2021.11.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 08/03/2021] [Accepted: 11/09/2021] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Non-European populations are under-represented in genetics studies, hindering clinical implementation of breast cancer polygenic risk scores (PRSs). We aimed to develop PRSs using the largest available studies of Asian ancestry and to assess the transferability of PRS across ethnic subgroups. METHODS The development data set comprised 138,309 women from 17 case-control studies. PRSs were generated using a clumping and thresholding method, lasso penalized regression, an Empirical Bayes approach, a Bayesian polygenic prediction approach, or linear combinations of multiple PRSs. These PRSs were evaluated in 89,898 women from 3 prospective studies (1592 incident cases). RESULTS The best performing PRS (genome-wide set of single-nucleotide variations [formerly single-nucleotide polymorphism]) had a hazard ratio per unit SD of 1.62 (95% CI = 1.46-1.80) and an area under the receiver operating curve of 0.635 (95% CI = 0.622-0.649). Combined Asian and European PRSs (333 single-nucleotide variations) had a hazard ratio per SD of 1.53 (95% CI = 1.37-1.71) and an area under the receiver operating curve of 0.621 (95% CI = 0.608-0.635). The distribution of the latter PRS was different across ethnic subgroups, confirming the importance of population-specific calibration for valid estimation of breast cancer risk. CONCLUSION PRSs developed in this study, from association data from multiple ancestries, can enhance risk stratification for women of Asian ancestry.
Collapse
Affiliation(s)
- Weang-Kee Ho
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Selangor, Malaysia; Cancer Research Malaysia, Selangor, Malaysia.
| | | | - Joe Dennis
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Xiang Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN; Department of Epidemiology & Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jingmei Li
- Department of Surgery, University Surgical Cluster, National University Hospital, Singapore, Singapore; Genome Institute of Singapore, Laboratory of Women's Health and Genetics, Singapore, Singapore
| | - Peh Joo Ho
- Genome Institute of Singapore, Laboratory of Women's Health and Genetics, Singapore, Singapore
| | - Iona Y Millwood
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom; MRC Population Health Research Unit, University of Oxford, Oxford, United Kingdom
| | - Kuang Lin
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Yon-Ho Jee
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Su-Hyun Lee
- Graduate School of Public Health, Yonsei University, Seoul, Korea
| | - Nasim Mavaddat
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Manjeet K Bolla
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Qin Wang
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Kyriaki Michailidou
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom; Biostatistics Unit, The Cyprus Institute of Neurology & Genetics, Ayios Dometios, Cyprus; Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology & Genetics, Ayios Dometios, Cyprus
| | - Jirong Long
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN
| | | | | | - Kartini Rahmat
- Biomedical Imaging Department, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Veronique Kiak Mien Tan
- Department of Breast Surgery, Singapore General Hospital, Singapore, Singapore; Division of Surgery and Surgical Oncology, National Cancer Center Singapore, Singapore, Singapore
| | - Benita Kiat Tee Tan
- Department of Breast Surgery, Singapore General Hospital, Singapore, Singapore; Division of Surgery and Surgical Oncology, National Cancer Center Singapore, Singapore, Singapore; Department of General Surgery, Sengkang General Hospital, Singapore, Singapore
| | - Su Ming Tan
- Division of Breast Surgery, Changi General Hospital, Singapore, Singapore
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, Singapore
| | - Swee Ho Lim
- KK Breast Department, KK Women's and Children's Hospital, Singapore, Singapore
| | - Yu-Tang Gao
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ying Zheng
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Daehee Kang
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Ji-Yeob Choi
- Cancer Research Institute, Seoul National University, Seoul, Korea; Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Institute of Health Policy and Management, Medical Research Center, Seoul National University, Seoul, Korea
| | - Wonshik Han
- Cancer Research Institute, Seoul National University, Seoul, Korea; Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Han-Byoel Lee
- Cancer Research Institute, Seoul National University, Seoul, Korea; Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Michiki Kubo
- RIKEN Center for Integrative Medical Sciences (IMS), Yokohama, Japan
| | - Yukinori Okada
- Department of Statistical Genetics, Graduate School of Medicine, Faculty of Medicine, Osaka University, Suita, Japan; Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan; Laboratory of Statistical Immunology, Immunology Frontier Research Center (WPI-IFReC), Osaka University, Suita, Japan
| | - Shinichi Namba
- Department of Statistical Genetics, Graduate School of Medicine, Faculty of Medicine, Osaka University, Suita, Japan
| | - Sue K Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University, Seoul, Korea; Integrated Major in Innovative Medical Science, Seoul National University College of Medicine, Seoul, Korea
| | - Sung-Won Kim
- Department of Surgery, Daerim Saint Mary's Hospital, Seoul, Korea
| | - Chen-Yang Shen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Pei-Ei Wu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Boyoung Park
- Department of Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Kenneth R Muir
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Artitaya Lophatananon
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Anna H Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Chiu-Chen Tseng
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Japan; Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute, Nagoya, Japan; Division of Descriptive Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Ava Kwong
- Hong Kong Hereditary Breast Cancer Family Registry, Cancer Genetics Centre, Happy Valley, Hong Kong; Department of Surgery, The University of Hong Kong, Pok Fu Lam, Hong Kong; Department of Surgery, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong
| | - Tsun L Chan
- Hong Kong Hereditary Breast Cancer Family Registry, Cancer Genetics Centre, Happy Valley, Hong Kong; Department of Pathology, Hong Kong Sanatorium & Hospital, Happy Valley, Hong Kong
| | - Esther M John
- Division of Oncology, Department of Medicine, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA; Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA
| | - Allison W Kurian
- Division of Oncology, Department of Medicine, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA; Department of Epidemiology & Population Health, Stanford University School of Medicine, Stanford, CA
| | - Motoki Iwasaki
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| | - Sun-Seog Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, Hwasun, Korea; Jeonnam Regional Cancer Center, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Kristan J Aronson
- Department of Public Health Sciences, and Cancer Research Institute, School of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Rachel A Murphy
- Cancer Control Research, BC Cancer, Vancouver, British Columbia, Canada; School of Population and Public Health, Faculty of Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Woon-Puay Koh
- Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore; Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Chiea-Chuen Khor
- Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA; Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | - Rajkumar Dorajoo
- Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore; Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - Robin G Walters
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom; MRC Population Health Research Unit, University of Oxford, Oxford, United Kingdom
| | - Zhengming Chen
- Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom; MRC Population Health Research Unit, University of Oxford, Oxford, United Kingdom
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jun Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Keum-Ji Jung
- Institute for Health Promotion, Graduate School of Public Health, Yonsei University, Seoul, Korea
| | - Peter Kraft
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Paul D B Pharoah
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom; Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Alison M Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Jacques Simard
- Genomics Center, CHU de Québec-Université Laval Research Center, Quebec City, Quebec, Canada
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN
| | | | - Nur Aishah Mohd Taib
- Department of Surgery, Faculty of Medicine, University of Malaya Centre, UM Cancer Research Institute, Kuala Lumpur, Malaysia
| | - Antonis C Antoniou
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN
| | - Mikael Hartman
- Department of Surgery, University Surgical Cluster, National University Hospital, Singapore, Singapore; Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore; Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom; Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Soo-Hwang Teo
- Cancer Research Malaysia, Selangor, Malaysia; Department of Surgery, Faculty of Medicine, University of Malaya Centre, UM Cancer Research Institute, Kuala Lumpur, Malaysia.
| |
Collapse
|
7
|
Ho PJ, Khng AJ, Tan BKT, Tan EY, Tan SM, Tan VKM, Lim GH, Aronson KJ, Chan TL, Choi JY, Dennis J, Ho WK, Hou MF, Ito H, Iwasaki M, John EM, Kang D, Kim SW, Kurian AW, Kwong A, Lophatananon A, Matsuo K, Mohd-Taib NA, Muir K, Murphy RA, Park SK, Shen CY, Shu XO, Teo SH, Wang Q, Yamaji T, Zheng W, Bolla MK, Dunning AM, Easton DF, Pharoah PDP, Hartman M, Li J. Relevance of the MHC region for breast cancer susceptibility in Asians. Breast Cancer 2022; 29:869-879. [PMID: 35543923 PMCID: PMC9385763 DOI: 10.1007/s12282-022-01366-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/22/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND Human leukocyte antigen (HLA) genes play critical roles in immune surveillance, an important defence against tumors. Imputing HLA genotypes from existing single-nucleotide polymorphism datasets is low-cost and efficient. We investigate the relevance of the major histocompatibility complex region in breast cancer susceptibility, using imputed class I and II HLA alleles, in 25,484 women of Asian ancestry. METHODS A total of 12,901 breast cancer cases and 12,583 controls from 12 case-control studies were included in our pooled analysis. HLA imputation was performed using SNP2HLA on 10,886 quality-controlled variants within the 15-55 Mb region on chromosome 6. HLA alleles (n = 175) with info scores greater than 0.8 and frequencies greater than 0.01 were included (resolution at two-digit level: 71; four-digit level: 104). We studied the associations between HLA alleles and breast cancer risk using logistic regression, adjusting for population structure and age. Associations between HLA alleles and the risk of subtypes of breast cancer (ER-positive, ER-negative, HER2-positive, HER2-negative, early-stage, and late-stage) were examined. RESULTS We did not observe associations between any HLA allele and breast cancer risk at P < 5e-8; the smallest p value was observed for HLA-C*12:03 (OR = 1.29, P = 1.08e-3). Ninety-five percent of the effect sizes (OR) observed were between 0.90 and 1.23. Similar results were observed when different subtypes of breast cancer were studied (95% of ORs were between 0.85 and 1.18). CONCLUSIONS No imputed HLA allele was associated with breast cancer risk in our large Asian study. Direct measurement of HLA gene expressions may be required to further explore the associations between HLA genes and breast cancer risk.
Collapse
Affiliation(s)
- Peh Joo Ho
- Women’s Health and Genetics, Genome Institute of Singapore, 60 Biopolis Street, Genome, #02-01, Singapore, 138672 Singapore ,Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 119077 Singapore ,Department of Surgery, National University Health System, Singapore, 119228 Singapore
| | - Alexis Jiaying Khng
- Women’s Health and Genetics, Genome Institute of Singapore, 60 Biopolis Street, Genome, #02-01, Singapore, 138672 Singapore
| | - Benita Kiat-Tee Tan
- Department of Breast Surgery, Singapore General Hospital, Singapore, Singapore ,Division of Surgery and Surgical Oncology, National Cancer Centre Singapore, Singapore, Singapore ,Department of General Surgery, Sengkang General Hospital, Singapore, Singapore
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, 308433 Singapore ,Lee Kong Chian School of Medicine, Singapore, Singapore ,Institute of Molecular and Cell Biology, Singapore, Singapore
| | - Su-Ming Tan
- Division of Breast Surgery, Changi General Hospital, Singapore, Singapore
| | - Veronique Kiak Mien Tan
- Department of Breast Surgery, Singapore General Hospital, Singapore, Singapore ,Division of Surgery and Surgical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Geok Hoon Lim
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore, 229899 Singapore
| | - Kristan J. Aronson
- Department of Public Health Sciences, and Cancer Research Institute, Queen’s University, Kingston, ON K7L 3N6 Canada
| | - Tsun L. Chan
- Hong Kong Hereditary Breast Cancer Family Registry, Hong Kong, Hong Kong ,Department of Molecular Pathology, Hong Kong Sanatorium and Hospital, Hong Kong, Hong Kong
| | - Ji-Yeob Choi
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, 03080 Korea ,Cancer Research Institute, Seoul National University, Seoul, 03080 Korea ,Institute of Health Policy and Management, Seoul National University Medical Research Center, Seoul, 03080 Korea
| | - Joe Dennis
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK
| | - Weang-Kee Ho
- Department of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia Campus, 43500 Semenyih, Selangor Malaysia ,Breast Cancer Research Programme, Cancer Research Malaysia, 47500 Subang Jaya, Selangor Malaysia
| | - Ming-Feng Hou
- Department of Surgery, Kaohsiung Municipal Hsiao-Kang Hospital, Kao-hsiung, 812 Taiwan
| | - Hidemi Ito
- Division of Cancer Information and Control, Aichi Cancer Center Research Institute, Nagoya, 464-8681 Japan ,Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan
| | - Motoki Iwasaki
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, 104-0045 Japan
| | - Esther M. John
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA 94305 USA ,Department of Medicine, Division of Oncology, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94304 USA
| | - Daehee Kang
- Cancer Research Institute, Seoul National University, Seoul, 03080 Korea ,Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, 03080 Korea
| | - Sung-Won Kim
- Department of Surgery, Daerim Saint Mary’s Hospital, Seoul, 07442 Korea
| | - Allison W. Kurian
- Department of Epidemiology and Population Health, Stanford University School of Medicine, Stanford, CA 94305 USA ,Department of Medicine, Division of Oncology, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA 94304 USA
| | - Ava Kwong
- Hong Kong Hereditary Breast Cancer Family Registry, Hong Kong, Hong Kong ,Department of Surgery, The University of Hong Kong, Hong Kong, Hong Kong ,Department of Surgery and Cancer Genetics Center, Hong Kong Sanatorium and Hospital, Hong Kong, Hong Kong
| | - Artitaya Lophatananon
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL UK
| | - Keitaro Matsuo
- Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, Nagoya, 466-8550 Japan ,Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, 464-8681 Japan
| | - Nur Aishah Mohd-Taib
- Department of Surgery, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Kenneth Muir
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL UK
| | - Rachel A. Murphy
- School of Population and Public Health, University of British Columbia, Vancouver, BC V6T 1Z4 Canada ,Cancer Control Research, BC Cancer, Vancouver, BC V5Z 1L3 Canada
| | - Sue K. Park
- Cancer Research Institute, Seoul National University, Seoul, 03080 Korea ,Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, 03080 Korea ,Integrated Major in Innovative Medical Science, Seoul National University College of Medicine, Seoul, 03080 South Korea
| | - Chen-Yang Shen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, 115 Taiwan ,School of Public Health, China Medical University, Taichung, Taiwan
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37232 USA
| | - Soo Hwang Teo
- Breast Cancer Research Programme, Cancer Research Malaysia, 47500 Subang Jaya, Selangor Malaysia ,Department of Surgery, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Qin Wang
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK
| | - Taiki Yamaji
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, Tokyo, 104-0045 Japan
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37232 USA
| | - Manjeet K. Bolla
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK
| | - Alison M. Dunning
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK
| | - Douglas F. Easton
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK ,Department of Oncology, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK
| | - Paul D. P. Pharoah
- Department of Public Health and Primary Care, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK ,Department of Oncology, Centre for Cancer Genetic Epidemiology, University of Cambridge, Cambridge, CB1 8RN UK
| | - Mikael Hartman
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 119077 Singapore ,Department of Surgery, National University Health System, Singapore, 119228 Singapore
| | - Jingmei Li
- Women's Health and Genetics, Genome Institute of Singapore, 60 Biopolis Street, Genome, #02-01, Singapore, 138672, Singapore. .,Department of Surgery, National University Health System, Singapore, 119228, Singapore.
| |
Collapse
|
8
|
Ho PJ, Khng AJ, Loh HW, Ho WK, Yip CH, Mohd-Taib NA, Tan VKM, Tan BKT, Tan SM, Tan EY, Lim SH, Jamaris S, Sim Y, Wong FY, Ngeow J, Lim EH, Tai MC, Wijaya EA, Lee SC, Chan CW, Buhari SA, Chan PMY, Chen JJC, Seah JCM, Lee WP, Mok CW, Lim GH, Woo E, Kim SW, Lee JW, Lee MH, Park SK, Dunning AM, Easton DF, Schmidt MK, Teo SH, Li J, Hartman M. Germline breast cancer susceptibility genes, tumor characteristics, and survival. Genome Med 2021; 13:185. [PMID: 34857041 PMCID: PMC8638193 DOI: 10.1186/s13073-021-00978-9] [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] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/24/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Mutations in certain genes are known to increase breast cancer risk. We study the relevance of rare protein-truncating variants (PTVs) that may result in loss-of-function in breast cancer susceptibility genes on tumor characteristics and survival in 8852 breast cancer patients of Asian descent. METHODS Gene panel sequencing was performed for 34 known or suspected breast cancer predisposition genes, of which nine genes (ATM, BRCA1, BRCA2, CHEK2, PALB2, BARD1, RAD51C, RAD51D, and TP53) were associated with breast cancer risk. Associations between PTV carriership in one or more genes and tumor characteristics were examined using multinomial logistic regression. Ten-year overall survival was estimated using Cox regression models in 6477 breast cancer patients after excluding older patients (≥75years) and stage 0 and IV disease. RESULTS PTV9genes carriership (n = 690) was significantly associated (p < 0.001) with more aggressive tumor characteristics including high grade (poorly vs well-differentiated, odds ratio [95% confidence interval] 3.48 [2.35-5.17], moderately vs well-differentiated 2.33 [1.56-3.49]), as well as luminal B [HER-] and triple-negative subtypes (vs luminal A 2.15 [1.58-2.92] and 2.85 [2.17-3.73], respectively), adjusted for age at diagnosis, study, and ethnicity. Associations with grade and luminal B [HER2-] subtype remained significant after excluding BRCA1/2 carriers. PTV25genes carriership (n = 289, excluding carriers of the nine genes associated with breast cancer) was not associated with tumor characteristics. However, PTV25genes carriership, but not PTV9genes carriership, was suggested to be associated with worse 10-year overall survival (hazard ratio [CI] 1.63 [1.16-2.28]). CONCLUSIONS PTV9genes carriership is associated with more aggressive tumors. Variants in other genes might be associated with the survival of breast cancer patients. The finding that PTV carriership is not just associated with higher breast cancer risk, but also more severe and fatal forms of the disease, suggests that genetic testing has the potential to provide additional health information and help healthy individuals make screening decisions.
Collapse
Affiliation(s)
- Peh Joo Ho
- Genome Institute of Singapore, Human Genetics, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
| | - Alexis J. Khng
- Genome Institute of Singapore, Human Genetics, Singapore, Singapore
| | - Hui Wen Loh
- Genome Institute of Singapore, Human Genetics, Singapore, Singapore
| | - Weang-Kee Ho
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Malaysia
- Cancer Research Malaysia, 1 Jalan SS12/1A, 47500 Subang Jaya, Selangor Malaysia
| | - Cheng Har Yip
- Subang Jaya Medical Centre, Jalan SS 12/1A, 47500 Subang Jaya, Selangor Malaysia
| | - Nur Aishah Mohd-Taib
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- UM Cancer Research Institute, Kuala Lumpur, Malaysia
| | - Veronique Kiak Mien Tan
- Department of Breast Surgery, Singapore General Hospital, Singapore, Singapore
- Division of Surgical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Benita Kiat-Tee Tan
- Department of Breast Surgery, Singapore General Hospital, Singapore, Singapore
- Division of Surgical Oncology, National Cancer Centre Singapore, Singapore, Singapore
- Department of General Surgery, Sengkang General Hospital, Singapore, Singapore
| | - Su-Ming Tan
- Division of Breast Surgery, Changi General Hospital, Singapore, Singapore
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, 308433 Singapore
- Lee Kong Chian School of Medicine, Singapore, Singapore
- Institute of Molecular and Cell Biology, Singapore, Singapore
| | - Swee Ho Lim
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore, 229899 Singapore
| | - Suniza Jamaris
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- UM Cancer Research Institute, Kuala Lumpur, Malaysia
| | - Yirong Sim
- Department of Breast Surgery, Singapore General Hospital, Singapore, Singapore
- Division of Surgical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Fuh Yong Wong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Joanne Ngeow
- Lee Kong Chian School of Medicine, Nanyang Technology University, Singapore, Singapore
- Cancer Genetics Service, National Cancer Centre Singapore, Singapore, Singapore
- Oncology Academic Clinical Program, Duke NUS, Singapore, Singapore
| | - Elaine Hsuen Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Mei Chee Tai
- Cancer Research Malaysia, 1 Jalan SS12/1A, 47500 Subang Jaya, Selangor Malaysia
| | | | - Soo Chin Lee
- Department of Hematology-oncology, National University Cancer Institute, National University Health System, Singapore, 119074 Singapore
| | - Ching Wan Chan
- Department of Surgery, University Surgical Cluster, National University Hospital, Singapore, Singapore
| | - Shaik Ahmad Buhari
- Department of Surgery, University Surgical Cluster, National University Hospital, Singapore, Singapore
| | - Patrick M. Y. Chan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, 308433 Singapore
| | - Juliana J. C. Chen
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, 308433 Singapore
| | | | - Wai Peng Lee
- Division of Breast Surgery, Changi General Hospital, Singapore, Singapore
| | - Chi Wei Mok
- Division of Breast Surgery, Changi General Hospital, Singapore, Singapore
| | - Geok Hoon Lim
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore, 229899 Singapore
| | - Evan Woo
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore, 229899 Singapore
| | - Sung-Won Kim
- Department of Surgery, Breast Care Center, Daerim St. Mary’s Hospital, Seoul, Korea
| | - Jong Won Lee
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Republic of Korea
| | - Min Hyuk Lee
- Department of Surgery, Soonchunhyang University and Hospital, Seoul, Republic of Korea
| | - Sue K. Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Alison M. Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
| | - Douglas F. Easton
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Marjanka K. Schmidt
- Division of Molecular Pathology, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, the Netherlands
| | - Soo-Hwang Teo
- Cancer Research Malaysia, 1 Jalan SS12/1A, 47500 Subang Jaya, Selangor Malaysia
- Department of Surgery, Faculty of Medicine, University of Malaya, Jalan Universiti, 50630 Kuala Lumpur, Malaysia
| | - Jingmei Li
- Genome Institute of Singapore, Human Genetics, Singapore, Singapore
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
| | - Mikael Hartman
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, Singapore
- Department of Surgery, University Surgical Cluster, National University Hospital, Singapore, Singapore
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
| |
Collapse
|
9
|
Ho WK, Tan MM, Mavaddat N, Tai MC, Mariapun S, Li J, Ho PJ, Dennis J, Tyrer JP, Bolla MK, Michailidou K, Wang Q, Kang D, Choi JY, Jamaris S, Shu XO, Yoon SY, Park SK, Kim SW, Shen CY, Yu JC, Tan EY, Chan PMY, Muir K, Lophatananon A, Wu AH, Stram DO, Matsuo K, Ito H, Chan CW, Ngeow J, Yong WS, Lim SH, Lim GH, Kwong A, Chan TL, Tan SM, Seah J, John EM, Kurian AW, Koh WP, Khor CC, Iwasaki M, Yamaji T, Tan KMV, Tan KTB, Spinelli JJ, Aronson KJ, Hasan SN, Rahmat K, Vijayananthan A, Sim X, Pharoah PDP, Zheng W, Dunning AM, Simard J, van Dam RM, Yip CH, Taib NAM, Hartman M, Easton DF, Teo SH, Antoniou AC. European polygenic risk score for prediction of breast cancer shows similar performance in Asian women. Nat Commun 2020; 11:3833. [PMID: 32737321 PMCID: PMC7395776 DOI: 10.1038/s41467-020-17680-w] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [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: 11/19/2019] [Accepted: 07/15/2020] [Indexed: 12/02/2022] Open
Abstract
Polygenic risk scores (PRS) have been shown to predict breast cancer risk in European women, but their utility in Asian women is unclear. Here we evaluate the best performing PRSs for European-ancestry women using data from 17,262 breast cancer cases and 17,695 controls of Asian ancestry from 13 case-control studies, and 10,255 Chinese women from a prospective cohort (413 incident breast cancers). Compared to women in the middle quintile of the risk distribution, women in the highest 1% of PRS distribution have a ~2.7-fold risk and women in the lowest 1% of PRS distribution has ~0.4-fold risk of developing breast cancer. There is no evidence of heterogeneity in PRS performance in Chinese, Malay and Indian women. A PRS developed for European-ancestry women is also predictive of breast cancer risk in Asian women and can help in developing risk-stratified screening programmes in Asia.
Collapse
Affiliation(s)
- Weang-Kee Ho
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih, 43500, Selangor, Malaysia.
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia.
| | - Min-Min Tan
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih, 43500, Selangor, Malaysia
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Nasim Mavaddat
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
| | - Mei-Chee Tai
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Shivaani Mariapun
- School of Mathematical Sciences, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih, 43500, Selangor, Malaysia
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Jingmei Li
- Human Genetics, Genome Institute of Singapore, 60 Biopolis St, 138672, Singapore, Singapore
- Department of Surgery, National University Hospital and NUHS, 1E Kent Ridge Road, 119228, Singapore, Singapore
| | - Peh-Joo Ho
- Human Genetics, Genome Institute of Singapore, 60 Biopolis St, 138672, Singapore, Singapore
| | - Joe Dennis
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
| | - Jonathan P Tyrer
- Strangeways Research Laboratory, University of Cambridge, 2 Worts' Causeway, Cambridge, UK
| | - Manjeet K Bolla
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
| | - Kyriaki Michailidou
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
- Biostatistics Unit, The Cyprus Institute of Neurology & Genetics, 6 Iroon Avenue, 2371, Ayios, Dometios, Cyprus
- Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology & Genetics, 6 Iroon Avenue, 2371, Ayios, Dometios, Cyprus
| | - Qin Wang
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
| | - Daehee Kang
- Department of Preventive Medicine, Seoul National University College of Medicine, 103 Daehak-Ro, Jongno-Gu, 03080, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, 103 Daehak-Ro, Jongno-Gu, 03080, Seoul, Korea
- Cancer Research Institute, Seoul National University, 103 Daehak-Ro, Jongno-Gu, Seoul, 03080, Korea
| | - Ji-Yeob Choi
- Department of Biomedical Sciences, Seoul National University Graduate School, 103 Daehak-Ro, Jongno-Gu, 03080, Seoul, Korea
- Cancer Research Institute, Seoul National University, 103 Daehak-Ro, Jongno-Gu, Seoul, 03080, Korea
| | - Suniza Jamaris
- Department of Surgery, Faculty of Medicine, University of Malaya, Jalan Universiti, 50630, Kuala Lumpur, Malaysia
| | - Xiao-Ou Shu
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 1161 21st Ave S # D3300, Nashville, TN, 37232, USA
| | - Sook-Yee Yoon
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Sue K Park
- Department of Preventive Medicine, Seoul National University College of Medicine, 103 Daehak-Ro, Jongno-Gu, 03080, Seoul, Korea
- Department of Biomedical Sciences, Seoul National University Graduate School, 103 Daehak-Ro, Jongno-Gu, 03080, Seoul, Korea
- Cancer Research Institute, Seoul National University, 103 Daehak-Ro, Jongno-Gu, Seoul, 03080, Korea
| | - Sung-Won Kim
- Department of Surgery, Daerim Saint Mary's Hospital, 657 Siheung-Daero, Daerim-Dong, Yeongdeungpo-Gu, 07442, Seoul, Korea
| | - Chen-Yang Shen
- Institute of Biomedical Sciences, Academia Sinica, 115128, Section 2, Academia Road, Taipei, Taiwan
- School of Public Health, China Medical University, Taichung, Taiwan
| | - Jyh-Cherng Yu
- Department of Surgery, Tri-Service General Hospital, Taipei, 114, Taiwan
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, 308433, Singapore
| | - Patrick Mun Yew Chan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore, 308433, Singapore
| | - Kenneth Muir
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK
| | - Artitaya Lophatananon
- Division of Population Health, Health Services Research and Primary Care, School of Health Sciences, The University of Manchester, Oxford Road, M13 9PL, Manchester, UK
| | - Anna H Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 1975 Zonal Ave, Los Angeles, 90033, CA, USA
| | - Daniel O Stram
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, 1975 Zonal Ave, Los Angeles, 90033, CA, USA
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-Ku, 464-8681, Nagoya, Japan
- Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, 466-8550, Nagoya, Japan
| | - Hidemi Ito
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, 1-1 Kanokoden, Chikusa-Ku, 464-8681, Nagoya, Japan
- Division of Cancer Epidemiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, 466-8550, Nagoya, Japan
| | - Ching Wan Chan
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore, Singapore
- National University Hospital, National University Health System, Singapore, Singapore
| | - Joanne Ngeow
- Division of Medical Oncology, National Cancer Centre Singapore, 11 Hospital Drive, 169610, Singapore, Singapore
- Oncology Academic Clinical Program, Duke-NUS Graduate Medical School, 8 College Road, 169857, Singapore, Singapore
| | - Wei Sean Yong
- Division of Surgical Oncology, National Cancer Centre, Singapore, Singapore
| | - Swee Ho Lim
- Breast Department, KK Women's and Children's Hospital, Singapore, 100 Bukit Timah Road, 229899, Singapore
| | - Geok Hoon Lim
- Breast Department, KK Women's and Children's Hospital, Singapore, 100 Bukit Timah Road, 229899, Singapore
| | - Ava Kwong
- Hong Kong Hereditary Breast Cancer Family Registry, Cancer Genetics Centre, 18A Kung Ngam Village Road, Happy Valley, Hong Kong
- Department of Surgery, The University of Hong Kong, 102 Pokfulam Road, Pok Fu Lam, Hong Kong
- Department of Surgery, Hong Kong Sanatorium and Hospital, 2 Village Rd, Happy Valley, Hong Kong
| | - Tsun L Chan
- Hong Kong Hereditary Breast Cancer Family Registry, Cancer Genetics Centre, 18A Kung Ngam Village Road, Happy Valley, Hong Kong
- Department of Pathology, Hong Kong Sanatorium and Hospital, 2 Village Rd, Happy Valley, Hong Kong
| | - Su Ming Tan
- General Surgery, Changi General Hospital, Singapore, Singapore
| | - Jaime Seah
- General Surgery, Changi General Hospital, Singapore, Singapore
| | - Esther M John
- Department of Medicine, Division of Oncology, Stanford Cancer Institute, Stanford University School of Medicine, 780 Welch Road, Suite CJ250C, Stanford, 94304 CA, USA
| | - Allison W Kurian
- Department of Medicine, Division of Oncology, Stanford Cancer Institute, Stanford University School of Medicine, 780 Welch Road, Suite CJ250C, Stanford, 94304 CA, USA
- Department of Health Research and Policy-Epidemiology, Stanford University School of Medicine, 259 Campus Drive, Stanford, 94305, CA, USA
| | - Woon-Puay Koh
- Health Services and Systems Research, Duke-NUS Medical School, Stanford University School of Medicine, 8 College Road, 169857, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, 12 Science Drive 2, #10-01, 117549, Singapore, Singapore
| | - Chiea Chuen Khor
- Human Genetics, Genome Institute of Singapore, 60 Biopolis St, 138672, Singapore, Singapore
| | - Motoki Iwasaki
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-Ku, 104-0045, Tokyo, Japan
| | - Taiki Yamaji
- Division of Epidemiology, Center for Public Health Sciences, National Cancer Center, 5-1-1 Tsukiji, Chuo-Ku, 104-0045, Tokyo, Japan
| | - Kiak Mien Veronique Tan
- Division of Surgical Oncology, National Cancer Centre, Singapore, Singapore
- Department of General Surgery, Singapore General Hospital, Singapore, Singapore
| | - Kiat Tee Benita Tan
- Division of Surgical Oncology, National Cancer Centre, Singapore, Singapore
- Department of General Surgery, Singapore General Hospital, Singapore, Singapore
| | - John J Spinelli
- Population Oncology, BC Cancer, 675 West 10th Avenue, Vancouver, V5Z 1G1 BC, Canada
- School of Population and Public Health, University of British Columbia, 2329 West Mall, Vancouver, V6T 1Z4 BC, Canada
| | - Kristan J Aronson
- Department of Public Health Sciences, and Cancer Research Institute, Queen's University, 10 Stuart Street, Kingston, K7L 3N6 ON, Canada
| | - Siti Norhidayu Hasan
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Kartini Rahmat
- Biomedical Imaging Department, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Anushya Vijayananthan
- Biomedical Imaging Department, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Xueling Sim
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, 12 Science Drive 2, #10-01, 117549, Singapore, Singapore
| | - Paul D P Pharoah
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, 2 Worts' Causeway, CB1 8RN, Cambridge, UK
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, 1161 21st Ave S # D3300, Nashville, TN, 37232, USA
| | - Alison M Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, 2 Worts' Causeway, CB1 8RN, Cambridge, UK
| | - Jacques Simard
- Genomics Center, CHU de Québec-Université Laval Research 2705 Blvd Laurier Québec (Québec) G1V 4G2, Quebec, Canada
| | - Rob Martinus van Dam
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, 12 Science Drive 2, #10-01, 117549, Singapore, Singapore
- Departments of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Cheng-Har Yip
- Sime Darby Medical Centre, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia
| | - Nur Aishah Mohd Taib
- Department of Surgery, Faculty of Medicine, University of Malaya, Jalan Universiti, 50630, Kuala Lumpur, Malaysia
| | - Mikael Hartman
- Department of Surgery, National University Hospital and NUHS, 1E Kent Ridge Road, 119228, Singapore, Singapore
| | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, 2 Worts' Causeway, CB1 8RN, Cambridge, UK
| | - Soo-Hwang Teo
- Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, 47500, Selangor, Malaysia.
- Department of Surgery, Faculty of Medicine, University of Malaya, Jalan Universiti, 50630, Kuala Lumpur, Malaysia.
| | - Antonis C Antoniou
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, CB1 8RN, Cambridge, UK
| |
Collapse
|
10
|
Ho WK, Ngan RKC, Yip CWY, Lee FKH, Lui JCF. Breast Cancer Patients Treated by Helical Tomotherapy, Intensity-modulated Radiotherapy, and Volumetric Arc Therapy: Comparison of Lung Doses. Hong Kong Journal of Radiology 2020. [DOI: 10.12809/hkjr2016959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- WK Ho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - RKC Ngan
- Department of Clinical Oncology, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - CWY Yip
- Department of Clinical Oncology, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - FKH Lee
- Department of Clinical Oncology, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - JCF Lui
- Department of Clinical Oncology, Queen Elizabeth Hospital, Jordan, Hong Kong
| |
Collapse
|
11
|
Redjeki ES, Ho WK, Shah N, Molosiwa OO, Ardiarini NR, Kuswanto, Mayes S. Understanding the genetic relationships between Indonesian bambara groundnut landraces and investigating their origins. Genome 2020; 63:319-327. [PMID: 32097026 DOI: 10.1139/gen-2019-0137] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A total of 170 bambara groundnut (Vigna subterranea) accessions were evaluated using both simple sequence repeat (SSR) and single nucleotide polymorphism (SNP) markers generated using genotyping-by-sequencing (GbS), of which 56 accessions were collected from West and East Java. Principal coordinate analysis (PCoA), population structure, and cluster analysis suggest that the East Java accessions could be a result of the introduction of selected West Java accessions. In addition, the current Indonesian accessions were likely introduced from Southern Africa, which would have produced a very marked founding effect such that these accessions present only a fraction of the genetic variability that exists within this species.
Collapse
Affiliation(s)
- E S Redjeki
- University of Muhammadiyah Gresik, Jl. Sumatera No. 101 GKB Gresik 61121, Jawa Timur, Indonesia
| | - W K Ho
- Crops For the Future, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.,School of Biosciences, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - N Shah
- Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - O O Molosiwa
- Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - N R Ardiarini
- University of Brawijaya, Veteran Street, Malang, 65145, Indonesia
| | - Kuswanto
- University of Brawijaya, Veteran Street, Malang, 65145, Indonesia
| | - Sean Mayes
- Crops For the Future, Jalan Broga, 43500 Semenyih, Selangor, Malaysia.,Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| |
Collapse
|
12
|
Tan MM, Ho WK, Yoon SY, Mariapun S, Hasan SN, Lee DSC, Hassan T, Lee SY, Phuah SY, Sivanandan K, Ng PPS, Rajaram N, Jaganathan M, Jamaris S, Islam T, Rahmat K, Fadzli F, Vijayananthan A, Rajadurai P, See MH, Thong MK, Mohd Taib NA, Yip CH, Teo SH. A case-control study of breast cancer risk factors in 7,663 women in Malaysia. PLoS One 2018; 13:e0203469. [PMID: 30216346 PMCID: PMC6138391 DOI: 10.1371/journal.pone.0203469] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [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: 03/06/2018] [Accepted: 08/21/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Breast cancer risk factors have been examined extensively in Western setting and more developed Asian cities/countries. However, there are limited data on developing Asian countries. The purpose of this study was to examine breast cancer risk factors and the change of selected risk factors across birth cohorts in Malaysian women. METHODS An unmatched hospital based case-control study was conducted from October 2002 to December 2016 in Selangor, Malaysia. A total of 3,683 cases and 3,980 controls were included in this study. Unconditional logistic regressions, adjusted for potential confounding factors, were conducted. The breast cancer risk factors were compared across four birth cohorts by ethnicity. RESULTS Ever breastfed, longer breastfeeding duration, a higher soymilk and soy product intake, and a higher level of physical activity were associated with lower risk of breast cancer. Chinese had the lowest breastfeeding rate, shortest breastfeeding duration, lowest parity and highest age of first full term pregnancy. CONCLUSIONS Our study shows that breastfeeding, soy intake and physical activity are modifiable risk factors for breast cancer. With the increasing incidence of breast cancer there is an urgent need to educate the women about lifestyle intervention they can take to reduce their breast cancer risk.
Collapse
Affiliation(s)
- Min-Min Tan
- Department of Applied Mathematics, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih, Selangor, Malaysia
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Weang-Kee Ho
- Department of Applied Mathematics, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih, Selangor, Malaysia
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Sook-Yee Yoon
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | | | | | | | - Tiara Hassan
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Sheau-Yee Lee
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | - Sze-Yee Phuah
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | | | | | - Nadia Rajaram
- Department of Applied Mathematics, Faculty of Engineering, University of Nottingham Malaysia Campus, Semenyih, Selangor, Malaysia
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| | | | - Suniza Jamaris
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Tania Islam
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Kartini Rahmat
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
- Biomedical Imaging Department, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Farhana Fadzli
- Biomedical Imaging Department, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Anushya Vijayananthan
- Biomedical Imaging Department, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Pathmanathan Rajadurai
- Sime Darby Medical Centre, Subang Jaya, Selangor, Malaysia
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia Campus, Subang Jaya, Selangor, Malaysia
| | - Mee-Hong See
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Meow-Keong Thong
- Department of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Nur Aishah Mohd Taib
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Cheng-Har Yip
- Sime Darby Medical Centre, Subang Jaya, Selangor, Malaysia
| | - Soo-Hwang Teo
- Cancer Research Malaysia, Subang Jaya, Selangor, Malaysia
| |
Collapse
|
13
|
Saleheen D, Zhao W, Young R, Nelson CP, Ho W, Ferguson JF, Rasheed A, Ou K, Nurnberg ST, Bauer RC, Goel A, Do R, Stewart AF, Hartiala J, Zhang W, Thorleifsson G, Strawbridge RJ, Sinisalo J, Kanoni S, Sedaghat S, Marouli E, Kristiansson K, Zhao JH, Scott R, Gauguier D, Shah SH, Smith AV, van Zuydam N, Cox AJ, Willenborg C, Kessler T, Zeng L, Province MA, Ganna A, Lind L, Pedersen NL, White CC, Joensuu A, Kleber ME, Hall AS, März W, Salomaa V, O’Donnell C, Ingelsson E, Feitosa MF, Erdmann J, Bowden DW, Palmer CN, Gudnason V, De Faire U, Zalloua P, Wareham N, Thompson JR, Kuulasmaa K, Dedoussis G, Perola M, Dehghan A, Chambers JC, Kooner J, Allayee H, Deloukas P, McPherson R, Stefansson K, Schunkert H, Kathiresan S, Farrall M, Frossard PM, Rader DJ, Samani NJ, Reilly MP. Loss of Cardioprotective Effects at the ADAMTS7 Locus as a Result of Gene-Smoking Interactions. Circulation 2017; 135:2336-2353. [PMID: 28461624 PMCID: PMC5612779 DOI: 10.1161/circulationaha.116.022069] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [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: 05/31/2016] [Accepted: 03/21/2017] [Indexed: 01/14/2023]
Abstract
BACKGROUND Common diseases such as coronary heart disease (CHD) are complex in etiology. The interaction of genetic susceptibility with lifestyle factors may play a prominent role. However, gene-lifestyle interactions for CHD have been difficult to identify. Here, we investigate interaction of smoking behavior, a potent lifestyle factor, with genotypes that have been shown to associate with CHD risk. METHODS We analyzed data on 60 919 CHD cases and 80 243 controls from 29 studies for gene-smoking interactions for genetic variants at 45 loci previously reported to be associated with CHD risk. We also studied 5 loci associated with smoking behavior. Study-specific gene-smoking interaction effects were calculated and pooled using fixed-effects meta-analyses. Interaction analyses were declared to be significant at a P value of <1.0×10-3 (Bonferroni correction for 50 tests). RESULTS We identified novel gene-smoking interaction for a variant upstream of the ADAMTS7 gene. Every T allele of rs7178051 was associated with lower CHD risk by 12% in never-smokers (P=1.3×10-16) in comparison with 5% in ever-smokers (P=2.5×10-4), translating to a 60% loss of CHD protection conferred by this allelic variation in people who smoked tobacco (interaction P value=8.7×10-5). The protective T allele at rs7178051 was also associated with reduced ADAMTS7 expression in human aortic endothelial cells and lymphoblastoid cell lines. Exposure of human coronary artery smooth muscle cells to cigarette smoke extract led to induction of ADAMTS7. CONCLUSIONS: Allelic variation at rs7178051 that associates with reduced ADAMTS7 expression confers stronger CHD protection in never-smokers than in ever-smokers. Increased vascular ADAMTS7 expression may contribute to the loss of CHD protection in smokers.
Collapse
Affiliation(s)
- Danish Saleheen
- Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia, PA
- Center for Non-Communicable Diseases, Karachi, Pakistan
| | - Wei Zhao
- Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia, PA
| | - Robin Young
- Department of Public Health and Primary Care, University of Cambridge, United Kingdom
| | - Christopher P. Nelson
- Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom
| | - WeangKee Ho
- Department of Public Health and Primary Care, University of Cambridge, United Kingdom
| | - Jane F. Ferguson
- Cardiology Division, Department of Medicine, Vanderbilt University, Nashville, TN
| | - Asif Rasheed
- Center for Non-Communicable Diseases, Karachi, Pakistan
| | - Kristy Ou
- Cardiology Division, Department of Medicine, Vanderbilt University, Nashville, TN
| | - Sylvia T. Nurnberg
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Robert C. Bauer
- Cardiology Division, Department of Medicine and the Irving Institute for Clinical and Translational Research, Columbia University Medical Center, New York, NY
| | - Anuj Goel
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine & Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Ron Do
- The Charles Bronfman Institute of Personalized Medicine, Icahn School of Medicine at Mount Sinai, New York, NY
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Alexandre F.R. Stewart
- Ruddy Canadian Cardiovascular Genetics Centre, University of Ottawa Heart Institute, Ottawa, Canada
| | - Jaana Hartiala
- Institute for Genetic Medicine and Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Weihua Zhang
- Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
- Department of Cardiology, Ealing Hospital NHS Trust, Middlesex, United Kingdom
| | - Gudmar Thorleifsson
- deCODE Genetics, Sturlugata 8, IS-101 Reykjavik, Iceland
- University of Iceland, School of Medicine, Reykjavik, Iceland
| | - Rona J Strawbridge
- Cardiovascular Medicine Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | | | - Stavroula Kanoni
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Sanaz Sedaghat
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Eirini Marouli
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
- Department of Dietetics-Nutrition, Harokopio University, 70 El. VenizelouStr, Athens, Greece
| | | | - Jing Hua Zhao
- MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom
| | - Robert Scott
- MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge Biomedical Campus, Cambridge, United Kingdom
| | | | - Svati H. Shah
- Division of Cardiology, Department of Medicine, Duke University Medical Center, Durham, NC
| | - Albert Vernon Smith
- Icelandic Heart Association, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Natalie van Zuydam
- Medical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Amanda J. Cox
- Center for Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, NC
| | - Christina Willenborg
- Institut für Integrative und Experimentelle Genomik, Universität zu Lübeck, Lübeck, Germany
- DZHK (German Research Center for Cardiovascular Research) partner site Hamburg–Lübeck–Kiel, Lübeck, Germany
| | - Thorsten Kessler
- Deutsches Herzzentrum München, Technische Universität München, München, Germany
- Klinikum rechts der Isar, München, Germany
| | - Lingyao Zeng
- Deutsches Herzzentrum München, Technische Universität München, München, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, München, Germany
| | - Michael A. Province
- Department of Genetics, Washington University School of Medicine, St. Louis, MO
| | - Andrea Ganna
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
- Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA
| | - Lars Lind
- Department of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Uppsala, Sweden
| | - Nancy L. Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Charles C. White
- Department of Biostatistics Boston University School of Public Health Framingham Heart Study, Boston, MA
| | - Anni Joensuu
- National Institute for Health and Welfare, Helsinki, Finland
- University of Helsinki, Institute for Molecular Medicine, Finland (FIMM)
| | - Marcus Edi Kleber
- Department of Medicine, Mannheim Medical Faculty, Heidelberg University, Heidelberg, Germany
| | - Alistair S. Hall
- Leeds Institute of Genetics, Health and Therapeutics, University of Leeds, Leeds, United Kingdom
| | - Winfried März
- Synlab Academy, Synlab Services GmbH, Mannheim, Germany and Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Veikko Salomaa
- National Institute for Health and Welfare, Helsinki, Finland
| | - Christopher O’Donnell
- National Heart, Lung, and Blood Institute and the Framingham Heart Study, National Institutes of Health, Bethesda, MD
| | - Erik Ingelsson
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
- Department of Medicine, Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA
| | - Mary F. Feitosa
- Department of Genetics, Washington University School of Medicine, St. Louis, MO
| | - Jeanette Erdmann
- Institut für Integrative und Experimentelle Genomik, Universität zu Lübeck, Lübeck, Germany
- DZHK (German Research Center for Cardiovascular Research) partner site Hamburg–Lübeck–Kiel, Lübeck, Germany
| | - Donald W. Bowden
- Center for Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, NC
| | - Colin N.A. Palmer
- Medical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Vilmundur Gudnason
- Icelandic Heart Association, Kopavogur, Iceland
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Ulf De Faire
- Division of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Pierre Zalloua
- Lebanese American University, School of Medicine, Beirut, Lebanon
| | - Nicholas Wareham
- INSERM, UMRS1138, Centre de Recherche des Cordeliers, Paris, France
| | - John R. Thompson
- Department of Health Sciences, University of Leicester, Leicester, United Kingdom
| | - Kari Kuulasmaa
- National Institute for Health and Welfare, Helsinki, Finland
| | - George Dedoussis
- Department of Dietetics-Nutrition, Harokopio University, 70 El. VenizelouStr, Athens, Greece
| | - Markus Perola
- National Institute for Health and Welfare, Helsinki, Finland
- University of Helsinki, Institute for Molecular Medicine, Finland (FIMM)
| | - Abbas Dehghan
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - John C. Chambers
- Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
- Department of Cardiology, Ealing Hospital NHS Trust, Middlesex, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
| | - Jaspal Kooner
- Department of Epidemiology and Biostatistics, Imperial College London, London, United Kingdom
- Imperial College Healthcare NHS Trust, London, United Kingdom
- Cardiovascular Science, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Hooman Allayee
- Institute for Genetic Medicine and Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Panos Deloukas
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
- Princess Al-Jawhara Al-Brahim Centre of Excellence in Research of Hereditary Disorders (PACER-HD), King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ruth McPherson
- Ruddy Canadian Cardiovascular Genetics Centre, University of Ottawa Heart Institute, Ottawa, Canada
| | - Kari Stefansson
- deCODE Genetics, Sturlugata 8, IS-101 Reykjavik, Iceland
- University of Iceland, School of Medicine, Reykjavik, Iceland
| | - Heribert Schunkert
- Deutsches Herzzentrum München, Technische Universität München, München, Germany
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, München, Germany
| | - Sekar Kathiresan
- Broad Institute of the Massachusetts Institute of Technology and Harvard University, Cambridge, MA
- Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA
- Center for Human Genetic Research, Massachusetts General Hospital, Boston, MA
- Department of Medicine, Harvard Medical School, Boston, MA
| | - Martin Farrall
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine & Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - EPIC-CVD
- Department of Public Health and Primary Care, University of Cambridge, United Kingdom
| | | | - Daniel J. Rader
- Department of Genetics, University of Pennsylvania, Philadelphia, PA
- Division of Translational Medicine and Human Genetics, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Nilesh J. Samani
- Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom
| | - PROMIS
- Center for Non-Communicable Diseases, Karachi, Pakistan
| | | | - Muredach P. Reilly
- Cardiology Division, Department of Medicine and the Irving Institute for Clinical and Translational Research, Columbia University Medical Center, New York, NY
| |
Collapse
|
14
|
Abstract
Objective To justify the application of medialization thyroplasty in Chinese patients with symptomatic cancer-related unilateral vocal fold paralysis (UVFP). Study Design and Setting Retrospective chart review from February 2000 to March 2006. Results Eighty-seven Chinese patients undergoing medialization thyroplasty for UVFP were included; there were no significant differences between the cancer-related and benign groups in terms of the speech and swallowing rehabilitation outcome and the perioperative complication rate ( P > 0.05). The median survival time of cancer-related UVFP patients from the date of medialization to death was 129 days. Age more than 65 years was identified as the only factor for a shorter survival period after medialization ( P = 0.040). Conclusion Medialization thyroplasty restores satisfactory speech and swallowing and has a low perioperative complication rate in Chinese patients with cancer-related UVFP. Postmedialization survival period was also reasonable. Significance Medialization thyroplasty is a justifiable treatment option for cancer-related UVFP.
Collapse
Affiliation(s)
- Paul K Y Lam
- Division of Otorhinolaryngology, Head & Neck Surgery, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong
| | | | | | | |
Collapse
|
15
|
Cornelis MC, Byrne EM, Esko T, Nalls MA, Ganna A, Paynter N, Monda KL, Amin N, Fischer K, Renstrom F, Ngwa JS, Huikari V, Cavadino A, Nolte IM, Teumer A, Yu K, Marques-Vidal P, Rawal R, Manichaikul A, Wojczynski MK, Vink JM, Zhao JH, Burlutsky G, Lahti J, Mikkilä V, Lemaitre RN, Eriksson J, Musani SK, Tanaka T, Geller F, Luan J, Hui J, Mägi R, Dimitriou M, Garcia ME, Ho WK, Wright MJ, Rose LM, Magnusson PKE, Pedersen NL, Couper D, Oostra BA, Hofman A, Ikram MA, Tiemeier HW, Uitterlinden AG, van Rooij FJA, Barroso I, Johansson I, Xue L, Kaakinen M, Milani L, Power C, Snieder H, Stolk RP, Baumeister SE, Biffar R, Gu F, Bastardot F, Kutalik Z, Jacobs DR, Forouhi NG, Mihailov E, Lind L, Lindgren C, Michaëlsson K, Morris A, Jensen M, Khaw KT, Luben RN, Wang JJ, Männistö S, Perälä MM, Kähönen M, Lehtimäki T, Viikari J, Mozaffarian D, Mukamal K, Psaty BM, Döring A, Heath AC, Montgomery GW, Dahmen N, Carithers T, Tucker KL, Ferrucci L, Boyd HA, Melbye M, Treur JL, Mellström D, Hottenga JJ, Prokopenko I, Tönjes A, Deloukas P, Kanoni S, Lorentzon M, Houston DK, Liu Y, Danesh J, Rasheed A, Mason MA, Zonderman AB, Franke L, Kristal BS, Karjalainen J, Reed DR, Westra HJ, Evans MK, Saleheen D, Harris TB, Dedoussis G, Curhan G, Stumvoll M, Beilby J, Pasquale LR, Feenstra B, Bandinelli S, Ordovas JM, Chan AT, Peters U, Ohlsson C, Gieger C, Martin NG, Waldenberger M, Siscovick DS, Raitakari O, Eriksson JG, Mitchell P, Hunter DJ, Kraft P, Rimm EB, Boomsma DI, Borecki IB, Loos RJF, Wareham NJ, Vollenweider P, Caporaso N, Grabe HJ, Neuhouser ML, Wolffenbuttel BHR, Hu FB, Hyppönen E, Järvelin MR, Cupples LA, Franks PW, Ridker PM, van Duijn CM, Heiss G, Metspalu A, North KE, Ingelsson E, Nettleton JA, van Dam RM, Chasman DI. Genome-wide meta-analysis identifies six novel loci associated with habitual coffee consumption. Mol Psychiatry 2015; 20:647-656. [PMID: 25288136 PMCID: PMC4388784 DOI: 10.1038/mp.2014.107] [Citation(s) in RCA: 184] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Revised: 07/17/2014] [Accepted: 07/22/2014] [Indexed: 02/02/2023]
Abstract
Coffee, a major dietary source of caffeine, is among the most widely consumed beverages in the world and has received considerable attention regarding health risks and benefits. We conducted a genome-wide (GW) meta-analysis of predominately regular-type coffee consumption (cups per day) among up to 91,462 coffee consumers of European ancestry with top single-nucleotide polymorphisms (SNPs) followed-up in ~30 062 and 7964 coffee consumers of European and African-American ancestry, respectively. Studies from both stages were combined in a trans-ethnic meta-analysis. Confirmed loci were examined for putative functional and biological relevance. Eight loci, including six novel loci, met GW significance (log10Bayes factor (BF)>5.64) with per-allele effect sizes of 0.03-0.14 cups per day. Six are located in or near genes potentially involved in pharmacokinetics (ABCG2, AHR, POR and CYP1A2) and pharmacodynamics (BDNF and SLC6A4) of caffeine. Two map to GCKR and MLXIPL genes related to metabolic traits but lacking known roles in coffee consumption. Enhancer and promoter histone marks populate the regions of many confirmed loci and several potential regulatory SNPs are highly correlated with the lead SNP of each. SNP alleles near GCKR, MLXIPL, BDNF and CYP1A2 that were associated with higher coffee consumption have previously been associated with smoking initiation, higher adiposity and fasting insulin and glucose but lower blood pressure and favorable lipid, inflammatory and liver enzyme profiles (P<5 × 10(-8)).Our genetic findings among European and African-American adults reinforce the role of caffeine in mediating habitual coffee consumption and may point to molecular mechanisms underlying inter-individual variability in pharmacological and health effects of coffee.
Collapse
Affiliation(s)
| | - Marilyn C Cornelis
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
,Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Enda M Byrne
- The University of Queensland, Queensland Brain Institute, Queensland, Australia
| | - Tõnu Esko
- Estonian Genome Center, University of Tartu, Tartu, Estonia
,Division of Endocrinology, Children’s Hospital Boston, Boston, Massachusetts, USA
,Department of Genetics, Harvard Medical School, Boston, Massachusetts, USA
,Program in Medical and Population Genetics, Broad Institute, Cambridge, Massachusetts, USA
| | - Michael A Nalls
- Laboratory of Neurogenetics, National Institute on Aging, National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Andrea Ganna
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Karolinska, Sweden
| | - Nina Paynter
- Division of Preventive Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Keri L Monda
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Najaf Amin
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Krista Fischer
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - Frida Renstrom
- Department of Clinical Sciences, Lund University, Malmö, Sweden
| | - Julius S Ngwa
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Ville Huikari
- Institute of Health Sciences, University of Oulu, Oulu, Finland
| | - Alana Cavadino
- Centre for Paediatric Epidemiology and Biostatistics, Medical Research Council (MRC) Centre of Epidemiology for Child Health, University College London Institute of Child Health, London, UK
| | - Ilja M Nolte
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Alexander Teumer
- Interfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Germany
| | - Kai Yu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Pedro Marques-Vidal
- Institute of Social and Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - Rajesh Rawal
- Institute of Genetic Epidemiology, Helmholtz Zentrum-München, Munich-Neuherberg, Germany
| | - Ani Manichaikul
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | - Mary K Wojczynski
- Washington University School of Medicine, Department of Genetics, Division of Statistical Genomics, St Louis, Missouri, USA
| | - Jacqueline M Vink
- Department of Biological Psychology / Netherlands Twin Register, VU University, Amsterdam, The Netherlands
| | - Jing Hua Zhao
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - George Burlutsky
- Centre for Vision Research, Department of Ophthalmology and the Westmead Millennium Institute, University of Sydney, New South Wales, Australia
| | - Jari Lahti
- Institute of Behavioural Sciences, University of Helsinki, Helsinki, Finland
,Folkhälsan Research Centre, Helsinki, Finland
| | - Vera Mikkilä
- Department of Food and Environmental Sciences, University of Helsinki, Helsinki, Finland
,Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Rozenn N Lemaitre
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, Washington, USA
| | - Joel Eriksson
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Solomon K Musani
- University of Mississippi Medical Center, Jackson, Mississippi, USA
| | - Toshiko Tanaka
- Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, Maryland, USA
| | - Frank Geller
- Statens Serum Institut, Department of Epidemiology Research, Copenhagen, Denmark
| | - Jian’an Luan
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Jennie Hui
- Busselton Population Medical Research Foundation Inc., Busselton, Australia
,PathWest Laboratory Medicine WA, Nedlands, Western Australia
,School of Pathology & Laboratory Medicine, The University of Western Australia, Nedlands, Western Australia
,School of Population Health, The University of Western Australia, Nedlands, Western Australia
| | - Reedik Mägi
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | | | - Melissa E Garcia
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIH, Bethesda, MD, USA
| | - Weang-Kee Ho
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridge, UK
| | | | - Lynda M Rose
- Division of Preventive Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Patrik KE Magnusson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Karolinska, Sweden
| | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Karolinska, Sweden
| | - David Couper
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Ben A Oostra
- Department of Clinical Genetics, Erasmus MC, Rotterdam, The Netherlands
| | - Albert Hofman
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Mohammad Arfan Ikram
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
,Department of Radiology, Erasmus Medical Center, Rotterdam, The Netherlands
,Department of Neurology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Henning W Tiemeier
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
,Department of Psychiatry, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Andre G Uitterlinden
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
,Department of Internal Medicine, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Frank JA van Rooij
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Inês Barroso
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
,University of Cambridge Metabolic Research Laboratories and NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | | | - Luting Xue
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, USA
| | - Marika Kaakinen
- Institute of Health Sciences, University of Oulu, Oulu, Finland
,Biocenter Oulu, University of Oulu, Oulu, Finland
,Department of Epidemiology and Biostatistics, MRC Health Protection Agency (HPE) Centre for Environment and Health, School of Public Health, Imperial College London, UK
| | - Lili Milani
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - Chris Power
- Centre for Paediatric Epidemiology and Biostatistics, Medical Research Council (MRC) Centre of Epidemiology for Child Health, University College London Institute of Child Health, London, UK
| | - Harold Snieder
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, The Netherlands
| | - Ronald P Stolk
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, The Netherlands
| | | | - Reiner Biffar
- Department of Prosthodontics, Gerodontology and Biomaterials, Center of Oral Health, University Medicine Greifswald, Germany
| | - Fangyi Gu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - François Bastardot
- Department of Internal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Zoltán Kutalik
- Department of Medical Genetics, University of Lausanne, Lausanne, Switzerland
,Institute of Social and Preventive Medicine (IUMSP), Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
,Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - David R Jacobs
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA
| | - Nita G Forouhi
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, UK
| | | | - Lars Lind
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Cecilia Lindgren
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Karl Michaëlsson
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Andrew Morris
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Majken Jensen
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Kay-Tee Khaw
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridge, UK
| | - Robert N Luben
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridge, UK
| | - Jie Jin Wang
- Centre for Vision Research, Department of Ophthalmology and the Westmead Millennium Institute, University of Sydney, New South Wales, Australia
| | - Satu Männistö
- Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
| | - Mia-Maria Perälä
- Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland
| | - Mika Kähönen
- Department of Clinical Physiology, Tampere University Hospital and School of Medicine University of Tampere, Tampere, Finland
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories, and School of Medicine, University of Tampere, Tampere, Finland
| | - Jorma Viikari
- Department of Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Dariush Mozaffarian
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
,Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA
,Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Kenneth Mukamal
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Bruce M Psaty
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, Washington, USA
,Cardiovascular Health Research Unit, Department of Epidemiology, University of Washington, Seattle, Washington, USA
,Department of Health Services, University of Washington, Seattle, Washington, USA
,Group Health Research Institute, Group Health Cooperative, Seattle, Washington, USA
| | - Angela Döring
- Institute of Epidemiology, Helmholtz Zentrum-München, Munich-Neuherberg, Germany
| | - Andrew C Heath
- Department of Psychiatry, Washington University, St.Louis, Missouri, USA
| | | | - Norbert Dahmen
- Department for Psychiatry, Johannes-Gutenberg-University, Mainz, Germany
| | - Teresa Carithers
- School of Applied Sciences, University of Mississippi, Oxford, Mississippi, USA
| | - Katherine L Tucker
- Clinical Laboratory & Nutritional Sciences, University of Massachusetts Lowell, Lowell, Massachusetts, USA
| | - Luigi Ferrucci
- Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, Maryland, USA
| | - Heather A Boyd
- Statens Serum Institut, Department of Epidemiology Research, Copenhagen, Denmark
| | - Mads Melbye
- Statens Serum Institut, Department of Epidemiology Research, Copenhagen, Denmark
| | - Jorien L Treur
- Department of Biological Psychology / Netherlands Twin Register, VU University, Amsterdam, The Netherlands
| | - Dan Mellström
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Jouke Jan Hottenga
- Department of Biological Psychology / Netherlands Twin Register, VU University, Amsterdam, The Netherlands
| | - Inga Prokopenko
- Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
,Department of Genomics of Common Diseases, Imperial College London, London, UK
| | - Anke Tönjes
- Medical Department, University of Leipzig, Germany
,IFB Adiposity Diseases, University of Leipzig, Leipzig, Germany
| | - Panos Deloukas
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
,William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
,King Abdulaziz University, Jeddah, Saudi Arabia
| | - Stavroula Kanoni
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mattias Lorentzon
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Denise K Houston
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - Yongmei Liu
- Wake Forest School of Medicine, Winston-Salem, North Carolina, USA
| | - John Danesh
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridge, UK
| | | | - Marc A Mason
- Health Disparities Research Section, Clinical Research Branch, National Institute on Aging, NIH, Baltimore, Maryland, USA
| | - Alan B Zonderman
- Laboratory of Personality and Cognition, National Institute on Aging, NIH, Baltimore, Maryland, USA
| | - Lude Franke
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bruce S Kristal
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, Massachusetts, USA
,Department of Surgery, Harvard Medical School, Boston, Massachusetts, USA
| | | | | | | | - Juha Karjalainen
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Danielle R Reed
- Monell Chemical Senses Center, Philadelphia, Pennsylvania, USA
| | - Harm-Jan Westra
- Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Michele K Evans
- Health Disparities Research Section, Clinical Research Branch, National Institute on Aging, NIH, Baltimore, Maryland, USA
| | - Danish Saleheen
- Department of Public Health and Primary Care, Institute of Public Health, University of Cambridge, Cambridge, UK
,Center for Non-Communicable Diseases, Pakistan
| | - Tamara B Harris
- Laboratory of Epidemiology and Population Sciences, National Institute on Aging, NIH, Bethesda, MD, USA
| | | | - Gary Curhan
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Michael Stumvoll
- Medical Department, University of Leipzig, Germany
,IFB Adiposity Diseases, University of Leipzig, Leipzig, Germany
| | - John Beilby
- Busselton Population Medical Research Foundation Inc., Busselton, Australia
,PathWest Laboratory Medicine WA, Nedlands, Western Australia
,School of Pathology & Laboratory Medicine, The University of Western Australia, Nedlands, Western Australia
| | - Louis R Pasquale
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
,Mass Eye and Ear Infirmary, Boston, Massachusetts, USA
| | - Bjarke Feenstra
- Statens Serum Institut, Department of Epidemiology Research, Copenhagen, Denmark
| | | | - Jose M Ordovas
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts, USA
| | - Andrew T Chan
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
,Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Ulrike Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Claes Ohlsson
- Centre for Bone and Arthritis Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Sweden
| | - Christian Gieger
- Institute of Genetic Epidemiology, Helmholtz Zentrum-München, Munich-Neuherberg, Germany
| | | | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum-München, Munich-Neuherberg, Germany
| | - David S Siscovick
- Cardiovascular Health Research Unit, Department of Medicine, University of Washington, Seattle, Washington, USA
,Cardiovascular Health Research Unit, Department of Epidemiology, University of Washington, Seattle, Washington, USA
| | - Olli Raitakari
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku and Turku University Hospital, Turku, Finland
,Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
| | - Johan G Eriksson
- Folkhälsan Research Centre, Helsinki, Finland
,Department of General Practice and Primary health Care, University of Helsinki, Helsinki, Finland
,Helsinki University Central Hospital, Unit of General Practice, Helsinki, Finland
| | - Paul Mitchell
- Centre for Vision Research, Department of Ophthalmology and the Westmead Millennium Institute, University of Sydney, New South Wales, Australia
| | - David J Hunter
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
,Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Peter Kraft
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Eric B Rimm
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
,Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA
,Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Dorret I Boomsma
- Department of Biological Psychology / Netherlands Twin Register, VU University, Amsterdam, The Netherlands
| | - Ingrid B Borecki
- Washington University School of Medicine, Department of Genetics, Division of Statistical Genomics, St Louis, Missouri, USA
| | - Ruth JF Loos
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, UK
,The Genetics of Obesity and Related Metabolic Traits Program, The Icahn School of Medicine at Mount Sinai, New York, New York, USA
,The Charles Bronfman Institute for Personalized Medicine, The Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Nicholas J Wareham
- Medical Research Council (MRC) Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Peter Vollenweider
- Department of Internal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Lausanne, Switzerland
| | - Neil Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Hans Jörgen Grabe
- Department of Psychiatry and Psychotherapy, University Medicine Greifswald, HELIOS Hospital Stralsund, Germany
| | | | - Bruce HR Wolffenbuttel
- Department of Endocrinology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Frank B Hu
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
,Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA
,Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - Elina Hyppönen
- Centre for Paediatric Epidemiology and Biostatistics, Medical Research Council (MRC) Centre of Epidemiology for Child Health, University College London Institute of Child Health, London, UK
,School of Population Health, University of South Australia, Adelaide, Australia
,South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Marjo-Riitta Järvelin
- Institute of Health Sciences, University of Oulu, Oulu, Finland
,Biocenter Oulu, University of Oulu, Oulu, Finland
,Department of Epidemiology and Biostatistics, MRC Health Protection Agency (HPE) Centre for Environment and Health, School of Public Health, Imperial College London, UK
,Department of Children and Young People and Families, National Institute for Health and Welfare, Oulu, Finland
,Unit of Primary Care, Oulu University Hospital, Oulu, Finland
| | - L Adrienne Cupples
- Department of Biostatistics, Boston University School of Public Health, Boston, Massachusetts, USA
,The Framingham Heart Study, Framingham, Massachusetts, USA
| | - Paul W Franks
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA
,Department of Clinical Sciences, Lund University, Malmö, Sweden
,Department of Public Health & Clinical Medicine, Section for Medicine, Umeå University, Umeå, Sweden
| | - Paul M Ridker
- Division of Preventive Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Cornelia M van Duijn
- Department of Epidemiology, Erasmus Medical Center, Rotterdam, The Netherlands
,Netherlands Consortium for Healthy Ageing and National Genomics Initiative, Leiden, The Netherlands
| | - Gerardo Heiss
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Kari E North
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Erik Ingelsson
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
,Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
| | - Jennifer A Nettleton
- Division of Epidemiology, Human Genetics and Environmental Sciences, University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Rob M van Dam
- Saw Swee Hock School of Public Health and Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, Singapore
| | - Daniel I Chasman
- Division of Preventive Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
16
|
Matthews JNS, Henderson R, Farewell DM, Ho WK, Rodgers LR. Dropout in crossover and longitudinal studies: Is complete case so bad? Stat Methods Med Res 2012; 23:60-73. [DOI: 10.1177/0962280212445838] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We discuss inference for longitudinal clinical trials subject to possibly informative dropout. A selection of available methods is reviewed for the simple case of trials with two timepoints. Using data from two such clinical trials, each with two treatments, we demonstrate that different analysis methods can at times lead to quite different conclusions from the same data. We investigate properties of complete-case estimators for the type of trials considered, with emphasis on interpretation and meaning of parameters. We contrast longitudinal and crossover designs and argue that for crossover studies there are often good reasons to prefer a complete case analysis. More generally, we suggest that there is merit in an approach in which no untestable assumptions are made. Such an approach would combine a dropout analysis, an analysis of complete-case data only, and a careful statement of justified conclusions.
Collapse
Affiliation(s)
| | | | | | - Weang-Kee Ho
- Department of Public Health and Primary Care, University of Cambridge, UK
| | | |
Collapse
|
17
|
Hon C, Kwok AK, Shek TW, Ho WK, Ng WM, Lie AKW, Au WY. Fibrous Dysplasia Masquerading as Extramedullary Relapse After Bone Marrow Transplantation for Chronic Myeloid Leukemia. Leuk Lymphoma 2009; 44:1823-5. [PMID: 14692542 DOI: 10.1080/1042819031000099634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 10/27/2022]
Abstract
A 19-year old girl suffered from relapse of chronic myeloid leukemia (CML) after bone marrow transplantation. The disease was controlled by interferon and imatinib mesylate, but was complicated by autoimmune hyperthyroidism. She presented with unilateral proptosis with no extraocular muscle or visual defect at 26 months follow-up. Systemic investigations showed no recurrence of leukemia or thyrotoxicosis. Magnetic resonance imaging revealed an extensive retro-orbital base of skull lesion. A trans-oral biopsy showed fibrous dysplasia and continuous observation was advised. The unusual sequence of events and the differential diagnoses for unilateral proptosis in post bone marrow transplantation (BMT) cases are discussed.
Collapse
MESH Headings
- Adult
- Benzamides
- Bone Marrow Transplantation
- Exophthalmos/etiology
- Female
- Fibrous Dysplasia of Bone/diagnosis
- Fibrous Dysplasia of Bone/etiology
- Humans
- Hyperthyroidism/etiology
- Imatinib Mesylate
- Interferons/therapeutic use
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/etiology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Magnetic Resonance Imaging
- Neoplasm Recurrence, Local/diagnosis
- Neoplasm Recurrence, Local/etiology
- Orbital Neoplasms/diagnosis
- Orbital Neoplasms/etiology
- Piperazines/therapeutic use
- Pyrimidines/therapeutic use
Collapse
Affiliation(s)
- C Hon
- Department of Ophthalmology, Queen Mary Hospital, University of Hong Kong, Hong Kong, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
18
|
Hankey GJ, Algra A, Chen C, Wong MC, Cheung R, Wong L, Divjak I, Ferro J, de Freitas G, Gommans J, Groppa S, Hill M, Spence D, Lees K, Lisheng L, Navarro J, Ranawaka U, Ricci S, Schmidt R, Slivka A, Tan K, Tsiskaridze A, Uddin W, Vanhooren G, Xavier D, Armitage J, Hobbs M, Le M, Sudlow C, Wheatley K, Yi Q, Bulder M, Eikelboom JW, Hankey GJ, Ho WK, Jamrozik K, Klijn K, Koedam E, Langton P, Nijboer E, Tuch P, Pizzi J, Tang M, Antenucci M, Chew Y, Chinnery D, Cockayne C, Loh K, McMullin L, Smith F, Schmidt R, Chen C, Wong MC, de Freitas G, Hankey GJ, Loh K, Song S. VITATOPS, the VITAmins TO prevent stroke trial: rationale and design of a randomised trial of B-vitamin therapy in patients with recent transient ischaemic attack or stroke (NCT00097669) (ISRCTN74743444). Int J Stroke 2008; 2:144-50. [PMID: 18705976 DOI: 10.1111/j.1747-4949.2007.00111.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Epidemiological studies suggest that raised plasma concentrations of total homocysteine (tHcy) may be a common, causal and treatable risk factor for atherothromboembolic ischaemic stroke, dementia and depression. Although tHcy can be lowered effectively with small doses of folic acid, vitamin B(12) and vitamin B(6), it is not known whether lowering tHcy, by means of B vitamin therapy, can prevent stroke and other major atherothromboembolic vascular events. AIM To determine whether the addition of B-vitamin supplements (folic acid 2 mg, B(6) 25 mg, B(12) 500 microg) to best medical and surgical management will reduce the combined incidence of stroke, myocardial infarction (MI) and vascular death in patients with recent stroke or transient ischaemic attack (TIA) of the brain or eye. DESIGN A prospective, international, multicentre, randomised, double blind, placebo-controlled clinical trial. SETTING One hundred and four medical centres in 20 countries on five continents. SUBJECTS Eight thousand (6600 recruited as of 5 January, 2006) patients with recent (<7 months) stroke (ischaemic or haemorrhagic) or TIA (brain or eye). RANDOMISATION Randomisation and data collection are performed by means of a central telephone service or secure internet site. INTERVENTION One tablet daily of either placebo or B vitamins (folic acid 2 mg, B(6) 25 mg, B(12) 500 mug). PRIMARY OUTCOME The composite of stroke, MI or death from any vascular cause, whichever occurs first. Outcome and serious adverse events are adjudicated blinded to treatment allocation. SECONDARY OUTCOMES TIA, unstable angina, revascularisation procedures, dementia, depression. STATISTICAL POWER: With 8000 patients followed up for a median of 2 years and an annual incidence of the primary outcome of 8% among patients assigned placebo, the study will have at least 80% power to detect a relative reduction of 15% in the incidence of the primary outcome among patients assigned B vitamins (to 6.8%/year), applying a two-tailed level of significance of 5%. CONCLUSION VITATOPS aims to recruit and follow-up 8000 patients between 1998 and 2008, and provide a reliable estimate of the safety and effectiveness of folic acid, vitamin B(12), and vitamin B(6) supplementation in reducing recurrent serious vascular events among a wide range of patients with TIA and stroke throughout the world.
Collapse
|
19
|
Yuen APW, Cheung S, Tang KC, Ho WK, Wong BYH, Cheung ACS, Ho ACW. The skin prick test results of 977 patients suffering from chronic rhinitis in Hong Kong. Hong Kong Med J 2007; 13:131-6. [PMID: 17406040] [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: 05/14/2023] Open
Abstract
OBJECTIVES To evaluate the prevalence of aetiological allergens identifiable by skin prick test alone in patients suffering from chronic rhinitis in Hong Kong, and also compare the clinical history and symptoms of skin prick test-positive versus skin prick test-negative patients. DESIGN Prospective study. SETTING Otorhinolaryngology clinic in Queen Mary Hospital of Hong Kong. PATIENTS A total of 977 patients suffering from chronic rhinitis were recruited into the study. Skin prick test was performed with a panel of allergens including house dust mites, cockroach, cat, dog, moulds, and pollens. MAIN OUTCOME MEASURES Skin prick test results and their correlation with symptoms. RESULTS Of the 977 patients, 651 (67%) had positive skin prick test reactions. The commonest allergen was house dust mite which was positive in 63% of the 977 patients and 95% of those 651 skin prick test-positive patients. The other allergens were in order of cockroach (23%), cat (14%), dog (5%), pollen (4%), and mould (3%). Compared with skin prick test-negative patients, skin prick test-positive patients were more likely to have earlier age of onset of the chronic rhinitis, association with asthma, more severe symptom in the morning, more severe symptoms of itchy nose, sneezing, nasal discharge, itchy eye, and watery eye. CONCLUSIONS Identifiable aeroallergens could be detected in 67% chronic rhinitis patients by skin prick test alone. House dust mites were the most prevalent causative allergen. There were significant differences of patterns of clinical history and symptoms severity between skin prick test-positive and skin prick test-negative patients.
Collapse
Affiliation(s)
- Anthony P W Yuen
- Department of Otorhinolaryngology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong.
| | | | | | | | | | | | | |
Collapse
|
20
|
Abstract
In this paper, a new memetic algorithm (MA) for multiobjective (MO) optimization is proposed, which combines the global search ability of particle swarm optimization with a synchronous local search heuristic for directed local fine-tuning. A new particle updating strategy is proposed based upon the concept of fuzzy global-best to deal with the problem of premature convergence and diversity maintenance within the swarm. The proposed features are examined to show their individual and combined effects in MO optimization. The comparative study shows the effectiveness of the proposed MA, which produces solution sets that are highly competitive in terms of convergence, diversity, and distribution.
Collapse
Affiliation(s)
- Dasheng Liu
- Control and Simulation Laboratory, Department of Electrical and Computer Engineering, National University of Singapore.
| | | | | | | |
Collapse
|
21
|
Abstract
OBJECTIVES/HYPOTHESIS Recent developments in voice assessment propose the use of quality of life measurements. The Voice Handicap Index (VHI) is one of the most psychometrically robust and well-studied instruments among the various instruments for measuring quality of life. Two versions of VHI (VHI-30 and VHI-10) have been shown to be valid instruments for distinguishing dysphonic from nondysphonic individuals and also for documenting treatment effect for dysphonic patients. The VHI has been used worldwide; however, the psychometric properties of the Chinese version of VHI remains untested. This study aimed to investigate such properties of the Chinese VHI-30 and VHI-10 in the Hong Kong Chinese population. STUDY DESIGN Psychometric analysis of the Chinese VHI-30 and VHI-10 in dysphonic patients and control subjects. METHODS The original VHI-30 was translated into Chinese and was completed by 131 dysphonic patients and 54 nondysphonic individuals. The dysphonic patients also self-rated their dysphonic severity. RESULTS Results showed high test-retest reliability and high item-total correlation for both Chinese VHI-30 and VHI-10. Both Chinese versions could be used to distinguish different dysphonic groups and between dysphonic and nondysphonic groups. Significant correlation was found between the VHI scores and the patients' self-rated dysphonic severity. CONCLUSION The present study supported the original three-factorial structures of the VHI-30 and the use of the VHI for the Chinese population. It is shown that the Chinese VHI-10 is a strong representation of VHI-30 and is recommended for use in clinics because of its validity and ease of use by patients.
Collapse
Affiliation(s)
- Paul K Y Lam
- Division of Otorhinolaryngology Head & Neck Surgery, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong
| | | | | | | | | | | |
Collapse
|
22
|
Badia L, Lund VJ, Wei W, Ho WK. Ethnic variation in sinonasal anatomy on CT-scanning. Rhinology 2005; 43:210-4. [PMID: 16218515] [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: 05/04/2023]
Abstract
Computed tomography (CT) scanning of the paranasal sinuses provides valuable information in assessing extent of disease and fine detailed anatomy prior to endoscopic sinus surgery. Awareness of the different anatomic variants of the bony sinonasal anatomy will help the rhinologic surgeon's orientation during the procedure. We conducted a study to look at the incidence of the anatomic variation within the lateral wall of the nose and sinuses and to determine if there is any ethnic difference in these variants between a cohort of 100 Caucasian patients undergoing endoscopic sinus surgery in London and 100 Chinese patients treated in Hong Kong. We compared the two groups with chi-square test and the significant areas are those with p value of less than 0.05. The results show a higher incidence of pneumatisation of the middle turbinate (concha bullosa) and paradoxical bending of the middle turbinate in the Caucasian population. The infraorbital and suprabullar cell development was greater in the Caucasian population though the incidence of sphenoethmoidal cells was much greater in the Chinese population. When asymmetry of the anterior ethmoidal roof was considered, the left was consistently the highest in both groups, though there was no difference in the depth of the cribiform niche between right and left or between Caucasian and Chinese. The incidence of bent uncinate process and of complete absence of a sinus was higher in the Chinese population. There was no difference in the presence of pneumatisation of the agger nasi, of the uncinate process, or of the anterior clinoid process. There was no difference in the presence of septation adjoining the carotid in the lateral wall of sphenoid or in the exposure of the optic nerve within sphenoid or posterior ethmoid sinuses. Although there is no evidence that variants of the sinonasal anatomy seen on CT Scan have a causative effect in the disease process; a knowledge of their presence is paramount in minimising the potential for surgical complications.
Collapse
Affiliation(s)
- Lydia Badia
- The Royal National Throat, Nose and Ear Hospital, London, United Kingdom.
| | | | | | | |
Collapse
|
23
|
Affiliation(s)
- Raymond W M Ng
- Division of Head & Neck Surgery, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong, China.
| | | | | |
Collapse
|
24
|
Ho WK, Baccala M, Thom J, Eikelboom JW. High prevalence of abnormal preoperative coagulation tests in patients with adolescent idiopathic scoliosis. J Thromb Haemost 2005; 3:1094-5. [PMID: 15869617 DOI: 10.1111/j.1538-7836.2005.01252.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
25
|
Wei WI, Yuen APW, Ng RWM, Ho WK, Kwong DLW, Sham JST. Quantitative analysis of plasma cell-free Epstein-Barr virus DNA in nasopharyngeal carcinoma after salvage nasopharyngectomy: A prospective study. Head Neck 2004; 26:878-83. [PMID: 15390201 DOI: 10.1002/hed.20066] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [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: 11/11/2022] Open
Abstract
BACKGROUND The quantity of circulating cell-free Epstein-Barr virus (EBV) DNA in patients with nasopharyngeal carcinoma (NPC) managed by radiotherapy has prognostic relevance. We measured the copy number of EBV DNA in patients with early recurrent NPC before and after salvage nasopharyngectomy. METHODS Nasopharyngectomy with the maxillary swing approach was performed for 28 patients. Serum blood samples were taken prospectively before nasopharyngectomy and on postoperative day 7. Plasma cell-free EBV DNA copies were measured with a real-time quantitative polymerase chain reaction for the BamHI-W fragment of the EBV genome. RESULTS Cell-free EBV DNA was detected in 17 patients before nasopharyngectomy. Surgical resection reduced the copy number of EBV DNA significantly (p = .016). Negative surgical margins achieved during nasopharyngectomy is associated with a zero EBV DNA copy postoperatively (p = .022). CONCLUSION Cell-free EBV DNA was detected in 61% of patients with recurrent NPC, and its quantity postoperatively reflects whether the salvage nasopharyngectomy has achieved a negative surgical margin.
Collapse
Affiliation(s)
- William I Wei
- Division of Head Neck Surgery, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong SAR, China.
| | | | | | | | | | | |
Collapse
|
26
|
Lo S, Ho WK. Schwannoma of the larynx-an uncommon cause of vocal cord immobility. Hong Kong Med J 2004; 10:131-3. [PMID: 15075434] [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: 04/29/2023] Open
Abstract
We present a rare case of schwannoma of the larynx in a 26-year-old Chinese patient. The tumour was excised using a lateral thyrotomy approach, with satisfactory restoration of laryngeal function. The presentation, management, and outcome of treatment for this type of tumour are discussed.
Collapse
Affiliation(s)
- S Lo
- Department of Otorhinolaryngology-Head & Neck Surgery, St George's Hospital Medical School, University of London, United Kingdom.
| | | |
Collapse
|
27
|
Abstract
Summary Penicillin causes immune haemolytic anaemia by the 'drug-adsorption' mechanism and typically occurs after prolonged exposure to large doses of the drug. Withdrawal of the drug is associated with improved red cell survival and gradual cessation of haemolysis. Although this complication is uncommon, it can be potentially serious. An unusual case is described herein. The patient was exposed to a short course (9 days) of standard dose penicillin but suffered acute severe haemolysis about 1 week after cessation of therapy. A high titre anti-penicillin antibody (1 : 512) not cross-reacting with cephalosporins, was demonstrated. The delay in the development of immune haemolysis vis-à-vis penicillin therapy may be due to the patient being immunologically naive to the drug. Penicillin may persist for weeks in circulation, coating red cells and providing continued antigenic stimulation for the development of anti-penicillin antibody.
Collapse
Affiliation(s)
- W K Ho
- Department of Haematology, Austin and Repatriation Medical Centre, Melbourne, Australia.
| | | | | |
Collapse
|
28
|
Wei WI, Ho WK, Ng RWM. Pharyngeal Entry through the Vallecula. Laryngoscope 2004; 114:181-3. [PMID: 14710018 DOI: 10.1097/00005537-200401000-00034] [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] [Indexed: 11/26/2022]
Abstract
The authors describe a technique of entry into the vallecula with the guide of a small Deaver retractor inserted transorally, beyond the tongue base, into the vallecula. The tip of the Deaver directs the surgeon to the pharyngotomy site and allows pharyngeal entry and access without damaging structures in the region. This technique is particularly useful in total laryngectomy with or without pharyngectomy and is applicable whenever entry to the pharynx through the vallecula is indicated.
Collapse
Affiliation(s)
- William I Wei
- Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital. +.hk
| | | | | |
Collapse
|
29
|
Lam LK, Wei WI, Chan VSH, Ng RWM, Ho WK. Microvascular free tissue reconstruction following extirpation of head and neck tumour: experience towards an optimal outcome. J Laryngol Otol 2002; 116:929-36. [PMID: 12487674 DOI: 10.1258/00222150260369480] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 11/18/2022]
Abstract
Familiarity with four types of free tissues transfers allows appropriate reconstruction of most defects in the head and neck region functionally and aesthetically. These include jejunal graft, radial forearm, rectus abdominus myocutaneous and fibula osteocutaneous flaps. Free colonic and gastric patches were used occasionally. We report our experience of 215 free tissue transfers for reconstruction of defects in the head and neck region after tumour extirpation. The overall success rate was 94 per cent. The commonest cause of failure was related to arterial inflow (70 per cent). Three patients died in hospital, but their mortality was not related to the tissue transfers. Complications due to free tissue transfer at both the donor and recipient sites were few and manageable. The co-operation between the two surgical teams, together with the timely application of suitable salvage procedures, contribute to an optimal outcome.
Collapse
Affiliation(s)
- L K Lam
- Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong
| | | | | | | | | |
Collapse
|
30
|
Yuen APW, Lam KY, Choy JTH, Ho WK, Wong LY, Wei WI. Clinicopathologic significance of bcl-2 expression in the surgical treatment of oral tongue carcinoma. Eur J Surg Oncol 2002; 28:667-72. [PMID: 12359206 DOI: 10.1053/ejso.2002.1287] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [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: 11/11/2022]
Abstract
AIM There is still controversy on the incidence of positive expression of bcl-2 and its prognostic significance for oral tongue carcinoma patients who are treated by surgery. The present study aims at resolving the controversy on the clinicopathologic significance of bcl-2 in a well selected group of patients who satisfy the recruitment criteria: (1) oral tongue carcinoma, (2) squamous cell carcinoma, (3) primary surgical treatment. METHOD Bcl-2 expression was studied by immunohistochemistry on glossectomy specimens of 73 patients. The expression of bcl-2 was correlated with clinicopathologic data. RESULTS Of the 73 tumours, 11% had positive expression of bcl-2. Bcl-2 expression was not significantly correlated with tumour grade, stage, nodal metastasis and survival. CONCLUSION Bcl-2 expression played a minor role in oral tongue carcinoma. It had no significant correlation with tumour grade, stage and nodal metastasis. It also had no prognostic value on survival for patients who were treated by primary surgery.
Collapse
Affiliation(s)
- A P W Yuen
- Division of Otorhinolaryngology, Department of Surgery, The University of Hong Kong, China.
| | | | | | | | | | | |
Collapse
|
31
|
Abstract
Kimura's disease is a chronic inflammatory disorder of unknown etiology. A 62-year-old man presented with asymptomatic cervical lymphadenopathy associated with eosinophilia and increased serum immunoglobulin E. Excision biopsy showed Kimura's disease. Three years later another groin lymph node appeared and showed similar pathologic features. Polymerase chain reaction for Ig heavy chain and T-cell receptor (TCR) genes on DNA extracted from the cervical lymph node showed smear patterns. However, polymerase chain reaction for TCRdelta gene showed a clonal rearrangement. Sequencing showed a complete VDJ rearrangement (Vdelta1-N-Ddelta2-N-Jdelta), confirming the presence of a clonal T cell population. The same clonal TCRdelta rearrangement was amplified by polymerase chain reaction from the groin lymph node biopsied 3 years later. These results showed that the primary and recurrent lesions were biologically related. Furthermore, the presence of identical T cell clones in different sites and at different times suggested that a clonal T cell population might have contributed to the pathogenesis in this case of Kimura's disease.
Collapse
Affiliation(s)
- C S Chim
- University Department of Medicine, Queen Mary Hospital, Hong Kong
| | | | | | | | | | | |
Collapse
|
32
|
Abstract
BACKGROUND A retrospective analysis of treatment outcomes in patients with nasopharyngeal carcinoma (NPC) was performed in which the newly revised 1997 American Joint Committee on Cancer (AJCC) stage classification was applied and compared with the 1988 AJCC and Ho stage classifications, with emphasis on the predictive value of different staging systems in determining failure patterns in NPC. METHODS Three hundred and twenty-four patients with newly diagnosed NPC treated between September 1989 and August 1991 and originally staged according to Ho stage classification were re-staged according to the 1988 and 1997 AJCC stage classifications. In addition to stage grouping, patients were also classified into the following prognostic categories to study the failure patterns: early disease group (T1-2N0-1), advanced local disease group (T3-4N0-1), advanced nodal disease group (T1-2N2-3), and advanced locoregional disease group (T3-4N2-3). The overall survival (OAS), relapse-free survival (RFS), local relapse-free survival, nodal relapse-free survival, and distant metastases-free survival were compared among different stage groups and prognostic categories in the three staging systems. RESULTS In the new AJCC system, the percentages of patients with Stage I, II, III, and IV disease were 15.1%, 31.5%, 28.1%, and 25.3%, respectively, whereas most patients were classified as having Stage IV disease (65.7%) in the old AJCC system and Stage II or III disease (74.1%) in the Ho system. The 5 year OAS rates in the 1997 AJCC Stage I, II, III, and IV disease were 97.7%, 78.7%, 79.5%, and 61.4%, respectively. The corresponding 5 year RFS rates were 95.7%, 64.7%, 54.5%, and 41.1%. Using the 1997 AJCC system to define the four prognostic categories, the early disease group had the lowest incidence of relapse (27.6%) and death (18.4%), whereas the advanced locoregional disease group had the highest incidence of relapse (61.4%) and death (43.2%). Both the advanced local disease group and the advanced nodal disease group had similar rates of relapse (46.7% vs. 47.2%), but local relapse was the major cause of failure in the former group (61.8%), whereas distant metastases was the major cause in the latter group (44%). CONCLUSIONS Using the 1997 AJCC staging system, the authors observed a better distribution of patient numbers as well as segregation of survival curves among different stage groups. Moreover, prognostic categories with distinct prognosis and failure patterns were definable by the new system, which has important implications in selecting appropriate patient treatment strategies.
Collapse
Affiliation(s)
- D T Chua
- Department of Clinical Oncology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China.
| | | | | | | | | |
Collapse
|
33
|
Wei WI, Ho WK, Cheng AC, Wu X, Li GK, Nicholls J, Yuen PW, Sham JS. Management of extensive cervical nodal metastasis in nasopharyngeal carcinoma after radiotherapy: a clinicopathological study. Arch Otolaryngol Head Neck Surg 2001; 127:1457-62. [PMID: 11735814 DOI: 10.1001/archotol.127.12.1457] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVES To evaluate the efficacy of afterloading brachytherapy following radical neck dissection (RND) in the management of extensive cervical lymph node disease in nasopharyngeal carcinoma after radiotherapy; and to examine prospectively prognostic factors and the pathologic behavior of neck disease. PATIENTS Twenty-seven patients with nasopharyngeal carcinoma who had extensive cervical lymph node metastasis following external radiotherapy were treated with RND. Thirteen of them also underwent afterloading brachytherapy with iridium wire (Ir 192). The RND specimens of the 27 patients were also examined with step serial whole-specimen sectioning. RESULTS All patients survived and their wounds healed primarily. Pathologic examination revealed 183 tumor-bearing lymph nodes that contained tumors in the neck: level I, 4% (8/183); level II, 53% (96/183); level III, 34% (62/183); level IV, 5% (9/183); and level V, 4% (8/183). Extracapsular tumor extension was seen in 84% of patients. Multivariate analysis identified the number of tumor-bearing lymph nodes detected in the specimens to be the only significant factor that affected control of disease. Although the neck disease in the group of patients who had afterloading brachytherapy was more extensive, the 3-year actuarial tumor control for the groups with and without brachytherapy were 60% and 61%, respectively. CONCLUSIONS Recurrent cervical lymph nodes after radiotherapy in nasopharyngeal carcinoma are extensive and RND is mandatory for a successful salvage. When the nodal metastasis infiltrate or adhere to surrounding tissue, afterloading brachytherapy with iridium wire can provide satisfactory local tumor control.
Collapse
Affiliation(s)
- W I Wei
- Department of Surgery, University of Hong Kong Medical Center, Queen Mary Hospital, Hong Kong.
| | | | | | | | | | | | | | | |
Collapse
|
34
|
Lam P, Yuen AP, Ho CM, Ho WK, Wei WI. Prospective randomized study of post-operative chemotherapy with levamisole and UFT for head and neck carcinoma. Eur J Surg Oncol 2001; 27:750-3. [PMID: 11735172 DOI: 10.1053/ejso.2001.1171] [Citation(s) in RCA: 24] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AIMS A prospective randomized study was conducted to evaluate the benefit of adjuvant levamisole/UFT (futraful and uracil) chemotherapy in head and neck squamous cell carcinoma. METHODS Sixty-five patients with stage III and IV squamous cell carcinomas of oral cavity, oropharynx, hypopharynx and larynx with no distant metastasis were randomized for the chemotherapy study. Thirty-one patients were randomized for chemotherapy and two of them were subsequently excluded. In this study, a total of 29 patients on levamisole/UFT therapy and 34 patients on the control group were analysed. The main outcome was measured by the 5-year disease-free actuarial survival rate. RESULTS The rates of distant metastasis were 10% for chemotherapy group and 32% for control group (P=0.06). The 5-year disease-free actuarial survival rates for patients with and without adjuvant chemotherapy were 57% and 39% respectively (P=0.207). CONCLUSIONS A trend of better distant control in head and neck cancer patients with post-operative adjuvant oral chemotherapy was observed. The side effects were minimal. However, there was no statistically significant improvement in the overall long-term survival. It may be of value to conduct a large-scale multi-centre prospective randomized study to verify the efficacy of levamisole and UFT as post-operative adjuvant chemotherapy for the control of distant metastasis in high-risk population.
Collapse
Affiliation(s)
- P Lam
- Division of Otorhinolaryngology Head and Neck Surgery, Department of Surgery, The University of Hong Kong Medical Centre, Queen Mary Hospital, Hong Kong
| | | | | | | | | |
Collapse
|
35
|
Abstract
The membrane potential in vascular smooth muscle cells contributes to the regulation of cytosolic [Ca2+], which in turn regulates membrane potential by means of Ca2+i-dependent ionic currents. We investigated the characteristics of Ca2+i-dependent currents in rabbit coronary and pulmonary arterial smooth muscle cells. Ca2+i-dependent currents were recorded using the whole-cell patch-clamp technique while cytosolic [Ca2+] was increased by caffeine. The reversal potentials of caffeine-induced currents were between -80 and -10 mV under normal ionic conditions, whereas they were about 0 mV when K+-free NaCl solutions were used both in pipette and bath. The total substitution of extracellular Na+ with membrane-impermeable cation N-Methyl-D-glucamine did not affect caffeine-induced currents, implying no significant contribution of Na+ as a permeant ion to the currents. The substitution of extracellular NaCl with sucrose reduced outward component of the currents and shifted the reversal potentials according to the change in Cl- equilibrium potential. Upon application of the niflumic acid under K+-free conditions, most of the current induced by caffeine was inhibited. Taken together, the results of the present study indicate that K+ and Cl- currents are major components of Ca2+i-dependent currents in vascular smooth muscles isolated from coronary and pulmonary arteries of the rabbit, and the relative contribution of each type of current to total currents are not different between the two arteries.
Collapse
Affiliation(s)
- Y M Bae
- Department of Physiology and National Research Laboratory for Cellular Signalling, Seoul National University College of Medicine, Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Au WY, Chan GC, Chim CS, Shek TW, Ooi GC, Ho WK, Kwong YL. Unusual sites of involvement by hematologic malignancies. Case 3. External auditory canal tumor: a rare chloroma in acute promyelocytic leukemia with a complete response to arsenic trioxide. J Clin Oncol 2001; 19:3993-5. [PMID: 11579122 DOI: 10.1200/jco.2001.19.19.3993] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- W Y Au
- Queen Mary Hospital, Hong Kong
| | | | | | | | | | | | | |
Collapse
|
37
|
Chang Q, Zhu M, Zuo Z, Chow M, Ho WK. High-performance liquid chromatographic method for simultaneous determination of hawthorn active components in rat plasma. J Chromatogr B Biomed Sci Appl 2001; 760:227-35. [PMID: 11530981 DOI: 10.1016/s0378-4347(01)00273-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A simple HPLC method with photodiode-array (PDA) ultraviolet detection was developed for the simultaneous determination of four active polyphenol components of hawthorn (Crataegus), chlorogenic acid, epicatechin, hyperoside and isoquercitrin, in rat plasma. Following extraction from the plasma samples with ethyl acetate-methanol (2:1, v/v), these four compounds were successfully separated using a C18 column with a gradient elution of 5 and 25% acetonitrile in 25 mM phosphate buffer (pH 2.4). The flow-rate was set at 1 ml/min and the eluent was detected at 325 nm for chlorogenic acid, 278 nm for epicatechin, and 360 nm for both hyperoside and isoquercitrin. Narignin (0.82 microg) was used as the internal standard and was detected at 278 nm. The method is linear over the studied range of 0.16-40, 0.63-160, 0.13-32 and 0.13-30 microg/ml for chlorogenic acid, epicatechin, hyperoside and isoquercitrin, respectively. The correlation coefficient for each analyte was greater than 0.995. The intra-day and inter-day precision of the analysis was better than 4 and 7%, respectively. The extraction recoveries at low to high concentration were greater than 85% for both epicatechin and chlorogenic acid, and greater than 94% for both hyperoside and isoquercitrin. The detection limits were 0.04, 0.20, 0.03 and 0.03 microg/ml for chlorogenic acid, epicatechin, hyperoside and isoquercitrin. The developed method was used to analyze the plasma concentrations of the four analytes after the intravenous administration of hawthorn polyphenol extract to rats.
Collapse
Affiliation(s)
- Q Chang
- School of Pharmacy, The Chinese University of Hong Kong, Shatin, New Territories, PR China
| | | | | | | | | |
Collapse
|
38
|
Yuen PW, Chow V, Choy J, Lam KY, Ho WK, Wei WI. The clinicopathologic significance of p53 and p21 expression in the surgical management of lingual squamous cell carcinoma. Am J Clin Pathol 2001; 116:240-5. [PMID: 11488071 DOI: 10.1309/wka0-axp2-b8j5-duj3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [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: 02/03/2023] Open
Abstract
The aim of the present study was to evaluate the clinicopathologic significance of p53 and p21 expression in lingual squamous cell carcinomas. Immunohistochemical staining was performed with p53 and p21 monoclonal antibodies on surgical specimens from 87 patients who underwent primary surgical treatment for lingual carcinoma between 1976 and 1996. We found positive expression of p53 in 45 (52%) of 87 cases and of p21 in 49 (56%) of 87 cases. There was no correlation of p53 and p21 expression with cancer stage, T stage, nodal metastasis, and tumor grade. Univariate analysis revealed that p21 expression, tumor stage, T stage, and nodal stage were significant prognostic factors for survival. However, only p21 expression and tumor stage were significant independent prognostic factors for survival in a multivariate Cox regression analysis. Overexpression of p21 but not p53 has prognostic value for survival in the surgical treatment of lingual carcinomas. The combination of stage with p21 expression is recommended for evaluation of prognosis and for management planning.
Collapse
Affiliation(s)
- P W Yuen
- Dept of Surgery, Queen Mary Hospital, Pokfulam Rd, Hong Kong, People's Republic of China
| | | | | | | | | | | |
Collapse
|
39
|
|
40
|
Cho H, Youm JB, Earm YE, Ho WK. Inhibition of acetylcholine-activated K(+) current by chelerythrine and bisindolylmaleimide I in atrial myocytes from mice. Eur J Pharmacol 2001; 424:173-8. [PMID: 11672559 DOI: 10.1016/s0014-2999(01)01169-4] [Citation(s) in RCA: 24] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effects of the protein kinase C inhibitors chelerythrine and bisindolylmaleimide I on acetylcholine-activated K+ currents (I(KACh)) were examined in atrial myocytes of mice, using the patch clamp technique. Chelerythrine and bisindolylmaleimide I inhibited I(KACh) in a reversible and dose-dependent manner. Half-maximal effective concentrations were 0.49+/-0.01 microM for chelerythrine and 98.69+/-12.68 nM for bisindolylmaleimide I. However, I(KACh) was not affected either by calphostin C, which is also known as a protein kinase C inhibitor, or by a protein kinase C activator, phorbol 12,13-dibutyrate. When K(ACh) channels were activated directly by adding 1 mM GTPgammaS to the bath solution in inside-out patches, chelerythrine (10 microM) decreased the open probability from 0.043+/-0.01 to 0.014+/-0.007 (n=5), but bisindolylmaleimide I did not affect the channel activity. From these results, it is concluded that both chelerythrine and bisindolylmaleimide I inhibit K(ACh) channels independently of protein kinase C inhibition, but the level of inhibition is different.
Collapse
Affiliation(s)
- H Cho
- National Research Laboratory for Cellular Signalling, Seoul National University College of Medicine, 28 Yonkeun-Dong, Chongno-Ku, Seoul 110-799, South Korea
| | | | | | | |
Collapse
|
41
|
Han J, Kim N, Kim E, Ho WK, Earm YE. Modulation of ATP-sensitive potassium channels by cGMP-dependent protein kinase in rabbit ventricular myocytes. J Biol Chem 2001; 276:22140-7. [PMID: 11303020 DOI: 10.1074/jbc.m010103200] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.9] [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: 12/20/2022] Open
Abstract
This investigation used a patch clamp technique to test the hypothesis that protein kinase G (PKG) contributes to the phosphorylation and activation of ATP-sensitive K(+) (K(ATP)) channels in rabbit ventricular myocytes. Nitric oxide donors and PKG activators facilitated pinacidil-induced K(ATP) channel activities in a concentration-dependent manner, and a selective PKG inhibitor abrogated these effects. In contrast, neither a selective protein kinase A (PKA) activator nor inhibitor had any effect on K(ATP) channels at concentrations up to 100 and 10 microm, respectively. Exogenous PKG, in the presence of both cGMP and ATP, increased channel activity, while the catalytic subunit of PKA had no effect. PKG activity was prevented by heat inactivation, replacing ATP with adenosine 5'-O-(thiotriphosphate) (a nonhydrolyzable analog of ATP), removing Mg(2+) from the internal solution, applying a PKG inhibitor, or by adding exogenous protein phosphatase 2A. The effects of cGMP analogs and PKG were observed under conditions in which PKA was repressed by a selective PKA inhibitor. The results suggest that K(ATP) channels are regulated by a PKG-signaling pathway that acts via PKG-dependent phosphorylation. This mechanism may, at least in part, contribute to a signaling pathway that induces ischemic preconditioning in rabbit ventricular myocytes.
Collapse
Affiliation(s)
- J Han
- Department of Physiology and Biophysics, College of Medicine, Inje University, Busan, 614-735, Korea
| | | | | | | | | |
Collapse
|
42
|
Chan AC, Chan KW, Chan JK, Au WY, Ho WK, Ng WM. Development of follicular dendritic cell sarcoma in hyaline-vascular Castleman's disease of the nasopharynx: tracing its evolution by sequential biopsies. Histopathology 2001; 38:510-8. [PMID: 11422494 DOI: 10.1046/j.1365-2559.2001.01134.x] [Citation(s) in RCA: 147] [Impact Index Per Article: 6.4] [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: 11/20/2022]
Abstract
AIMS Hyaline-vascular Castleman's disease (HVCD) and follicular dendritic cell (FDC) sarcoma occurring in the nasopharynx are both extremely rare. We report the first case of transformation of the former into the latter as documented by sequential biopsies. The steps involved in the transformation were described in detail and the possible role of p53 studied. METHODS AND RESULTS The patient presented at the age of 23 years with nasopharyngeal HVCD. Hyaline- vascular Castleman's disease with FDC overgrowth was diagnosed in a recurrence 8 years later, and a frank FDC sarcoma developed at the same site 11 years after initial presentation. The patient remained disease-free 3 years after excision and adjuvant chemotherapy. The FDC sarcoma comprised swirling fascicles of spindly cells with indistinct cell borders. The tumour cells expressed the FDC markers CD21, CD35 and CNA.42 and in-situ hybridization for Epstein-Barr virus-encoded RNAs was negative. Over-expression of p53 protein was observed in the FDC sarcoma and an increased number of weakly p53-positive spindly cells could also be demonstrated in the HVCD specimen. This finding suggested a possible role of p53 in the evolution from HVCD to FDC sarcoma. Critical analysis of the literature shows that, among the 13 reported cases of FDC sarcoma associated with Castleman's disease, possible progression from the latter to the former is documented in only two cases. CONCLUSIONS The sequential changes observed in the current case provide further evidence to strengthen the role of HVCD as a possible precursor of FDC sarcoma. There is a possible role of p53 in the transformation process but confirmation by future studies is needed.
Collapse
Affiliation(s)
- A C Chan
- Department of Pathology, Queen Elizabeth Hospital, Kowloon, Hong Kong.
| | | | | | | | | | | |
Collapse
|
43
|
Yuen AP, Lam KY, Choy JT, Ho WK, Wei WI. The clinicopathological significance of bcl-2 expression in the surgical treatment of laryngeal carcinoma. Clin Otolaryngol Allied Sci 2001; 26:129-33. [PMID: 11309054 DOI: 10.1046/j.1365-2273.2001.00441.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Bcl-2 expression was studied by immunohistochemistry on laryngectomy specimens from 176 patients. Of the 176 tumours, 11% had positive bcl-2 staining. Bcl-2 expression was significantly correlated with tumour grade: 5% of well-differentiated tumours, 12% of moderately-differentiated tumours and 23% of poorly-differentiated tumours had positive expression of bcl-2. Nodal metastases were also found to be significantly related to bcl-2 expression: 36% of nodal metastases for negative bcl-2 expression compared with 70% for positive expression. The risk of nodal metastases increased significantly with the presence of bcl-2 expression, moderate or poor differentiation and supraglottic involvement. The risk of nodal metastases increased significantly with the presence of increasing numbers of risk factors: 11% without risk factor, 21% with one risk factor, 49% with two risk factors and 77% with three risk factors. Bcl-2 expression in laryngeal carcinoma is significantly correlated with tumour grade and nodal metastases. It has added prognostic value for nodal metastases together with tumour grade and site of tumour involvement.
Collapse
Affiliation(s)
- A P Yuen
- Division of Otorhinolaryngology, Department of Surgery, The University of Hong Kong, Hong Kong, SAR China.
| | | | | | | | | |
Collapse
|
44
|
Chow V, Yuen AP, Lam KY, Ho WK, Wei WI. Prognostic significance of serum p53 protein and p53 antibody in patients with surgical treatment for head and neck squamous cell carcinoma. Head Neck 2001; 23:286-91. [PMID: 11400229 DOI: 10.1002/hed.1032] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [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: 11/08/2022] Open
Abstract
OBJECTIVES This study aims at investigating the prognostic values of serum p53 protein and anti-p53 antibody in patients undergoing surgical treatment for head and neck squamous cell carcinoma (HNSCC). METHODS Serum p53 protein and anti-p53 antibody concentrations were determined by an enzyme-linked immunosorbent assay (ELISA) in 75 patients with HNSCC and 28 healthy controls. In 28 patients, formalin-fixed tumor tissues were also available for immunohistochemical staining by an anti-p53 DO7 monoclonal antibody. The results were correlated with the clinicopathologic parameters. RESULTS The mean preoperative serum concentration of p53 protein in patients with HNSCC was significantly higher than healthy controls (59.45 pg/mL vs 16.4 pg/mL, p =.007). Preoperative serum p53 antibody was present in 23 (31%) patients and was present in one healthy control. Eighteen (62%) tumor tissues showed p53 overexpression by immunohistochemistry. The presence of serum anti-p53 antibody before operation was associated with a significantly higher incidence (65%) of nodal metastasis compared with 27% nodal metastasis in patients with absence of serum anti-p53 antibody (p =.002). CONCLUSION Preoperative serum p53 antibody was a significant prognostic factor for nodal metastasis of HNSCC.
Collapse
Affiliation(s)
- V Chow
- Department of Surgery, Queen Mary Hospital, Pokfulam Road, Hong Kong, SAR China
| | | | | | | | | |
Collapse
|
45
|
Hui Y, Ma KM, Wei WI, Ho WK, Yuen PW, Lam LK, Chow CM. Relationship between the size of neopharynx after laryngectomy and long-term swallowing function: an assessment by scintigraphy. Otolaryngol Head Neck Surg 2001; 124:225-9. [PMID: 11226962 DOI: 10.1067/mhn.2001.112483] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/22/2022]
Abstract
OBJECTIVES To study the relationship between the size of neopharynx after total laryngectomy and long-term swallowing function by means of scintigraphy. STUDY DESIGN The width of pharyngeal remnant was measured during surgery in 11 patients. Their swallowing function was assessed by scintigraphy 8 to 10 years after surgery. METHODS The width of pharyngeal remnant at its narrowest point in both relaxed and stretched state was measured during surgery. Postoperative scintigraphy data on swallowing were obtained and computed along 3 lines, (1) transit time through neopharynx, (2) percentage of bolus transferred, and (3) swallowing efficiency. The relationship between the 2 sets of data was analyzed by linear regression analysis. RESULTS (1) No statistically significant relationship was found between the size of neopharynx and swallowing function. (2) All patients are clinically asymptomatic. CONCLUSIONS The swallowing function is not affected by the size of the neopharynx in 11 patients with pharyngeal remnant width ranging from 3 to 8 cm (stretched).
Collapse
Affiliation(s)
- Y Hui
- Department of Otorhinolaryngology, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong.
| | | | | | | | | | | | | |
Collapse
|
46
|
Cho H, Nam GB, Lee SH, Earm YE, Ho WK. Phosphatidylinositol 4,5-bisphosphate is acting as a signal molecule in alpha(1)-adrenergic pathway via the modulation of acetylcholine-activated K(+) channels in mouse atrial myocytes. J Biol Chem 2001; 276:159-64. [PMID: 11029461 DOI: 10.1074/jbc.m004826200] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [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: 11/06/2022] Open
Abstract
We have investigated the effect of alpha(1)-adrenergic agonist phenylephrine (PE) on acetylcholine-activated K(+) currents (I(KACh)). I(KACh) was recorded in mouse atrial myocytes using the patch clamp technique. I(KACh) was activated by 10 microm ACh and the current decreased by 44.27 +/- 2.38% (n = 12) during 4 min due to ACh-induced desensitization. When PE was applied with ACh, the extent of desensitization was markedly increased to 69.34 +/- 2.22% (n = 9), indicating the presence of PE-induced desensitization. I(KACh) was fully recovered from desensitization after a 6-min washout. PE-induced desensitization of I(KACh) was not affected by protein kinase C inhibitor, calphostin C, but abolished by phospholipase C (PLC) inhibitor, neomycin. When phophatidylinositol 4,5-bisphosphate (PIP(2)) replenishment was blocked by wortmannin (an inhibitor of phophatidylinositol 3-kinase and phophatidylinositol 4-kinase), desensitization of I(KACh) in the presence of PE was further increased (97.25 +/- 7.63%, n = 6). Furthermore, the recovery from PE-induced desensitization was inhibited, and the amplitude of I(KACh) at the second exposure after washout was reduced to 19.65 +/- 2.61% (n = 6) of the preceding level. These data suggest that the K(ACh) channel is modulated by PE through PLC stimulation and depletion of PIP(2).
Collapse
Affiliation(s)
- H Cho
- National Research Laboratory for Cellular Signalling, Seoul National University College of Medicine, 28 Yonkeun-Dong, Chongno-Ku, Seoul 110-799, Korea
| | | | | | | | | |
Collapse
|
47
|
Chow V, Yuen AP, Lam KY, Tsao GS, Ho WK, Wei WI. A comparative study of the clinicopathological significance of E-cadherin and catenins (alpha, beta, gamma) expression in the surgical management of oral tongue carcinoma. J Cancer Res Clin Oncol 2001; 127:59-63. [PMID: 11206273 DOI: 10.1007/s004320000177] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.3] [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: 01/28/2023]
Abstract
PURPOSE E-cadherin and catenins are important epithelial adhesion molecules in normal epithelium. Loss of E-cadherin-catenin adhesion is an important step in the progression of many epithelial cancers. E-cadherin and catenins expression in carcinoma of the tongue were evaluated in relation to their clinicopathological features and prognostic values. METHOD Immunohistochemical staining was carried out with E-cadherin and (alpha, beta, gamma)-catenin monoclonal antibodies for 85 surgical specimens of oral tongue carcinoma, nine matched metastatic lymph nodes, and seven locally recurrent tumours. RESULTS There was under-expression in 85% of E-cadherin, 94% of alpha-catenin, 89% of beta-catenin, and 83% of gamma-catenin in the primary tumours. There was no correlation of E-cadherin/catenin expression with sex, age, cancer stage, and differentiation. Nodal metastasis was found in 68% of patients with weak expression of gamma-catenin compared with 9% with strong expression in primary tumours (chi-square, P = 0.02). E-cadherin was a significant prognostic factor for survival and recurrence; patients with weak E-cadherin expression had 53% 5-year survival compared with 85% with strong expression (Wilcoxon, P = 0.0159). CONCLUSIONS Both E-cadherin and catenins were highly under-expressed in oral tongue carcinoma, metastatic lymph node, and recurrent tumour. gamma-catenin had predictive value for nodal metastasis. E-cadherin was, however, a more important prognostic factor for recurrence and survival.
Collapse
Affiliation(s)
- V Chow
- Department of Surgery, The University of Hong Kong, Queen Mary Hospital, Hong Kong, SAR China
| | | | | | | | | | | |
Collapse
|
48
|
Ho WK, Wei WI, Yuen AP, Hui Y. Effect of the external nasal dilator on nasal minimal cross-sectional area in orientals as assessed by acoustic rhinometry. J Otolaryngol 2000; 29:367-70. [PMID: 11770145] [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: 02/23/2023]
Abstract
OBJECTIVE This study aimed to evaluate the effect of the external nasal dilator on the dimension of the nasal valve in Orientals. DESIGN A cohort study of normal subjects. SETTING Academic institution. METHODS The nasal fossae of normal subjects were assessed by acoustic rhinometry before and after application of the external nasal dilator. MAIN OUTCOME MEASURES The minimal cross-sectional area of the nasal fossae and the total cross-sectional area of the nose. RESULTS Nasal fossae of 25 normal subjects were evaluated. There was a significant increase of 0.10 cm2 (SD = 0.16) or a 17% increase in the minimal cross-sectional area of the 50 nasal cavities after application of the external nasal dilator (Wilcoxon's matched-pairs signed rank test, p = .0001). A significant increase in the total minimal cross-sectional area for the whole nose after application was also present (0.19 cm2, SD = .27, or 16%; Wilcoxon's matched-pairs signed rank test, p = .0032). CONCLUSIONS The external nasal dilator results in an increase in the minimal cross-sectional area of the nasal airway in Orientals.
Collapse
Affiliation(s)
- W K Ho
- Department of Surgery, The University of Hong Kong, Hong Kong, People's Republic of China
| | | | | | | |
Collapse
|
49
|
Yuen PW, Lam KY, Choy JT, Ho WK, Wei WI. Clinicopathological significance of p53 and p21 expression in the surgical treatment of laryngeal carcinoma. Anticancer Res 2000; 20:4863-6. [PMID: 11205233] [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: 02/19/2023]
Abstract
BACKGROUND This study aimed at resolving the clinicopathological significance of p53 and p21 expression in patients undergoing surgical treatment for laryngeal carcinoma. MATERIALS AND METHODS p53 and p21 expression were studied by immunohistochemical method on surgical specimens of 193 patients. The expressions of p53 and p21 were correlated with the clinicopathological data. RESULTS Of the 193 tumors, 60% had positive p53 expression and 46% had positive p21 expression. Nodal metastasis was significantly correlated with p53 overexpression, supraglottic involvement and moderate- to poor-differentiation of the tumor. There was significant cumulative effect with increasing risk of nodal metastasis with increasing number of risk factors: 0% without any risk factor, 13% with 1 risk factor, 37% with 2 risk factors and 55% with all 3 risk factors. CONCLUSION Positive expressions p53 and p21 were common in laryngeal carcinoma. Overexpression of p53 but not p21 was associated with nodal metastasis. The use of p53 expression has added value in providing more accurate prognostic analysis of risk of nodal metastasis in conjunction with site of tumor involvement and tumor grade.
Collapse
Affiliation(s)
- P W Yuen
- Division of Otorhinolaryngology, Department of Surgery, University of Hong Kong, Hong Kong, SAR, PR China.
| | | | | | | | | |
Collapse
|
50
|
Chen ZY, Law WI, Yao XQ, Lau CW, Ho WK, Huang Y. Inhibitory effects of purified green tea epicatechins on contraction and proliferation of arterial smooth muscle cells. Acta Pharmacol Sin 2000; 21:835-40. [PMID: 11501167] [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: 02/21/2023] Open
Abstract
AIM The present study was aimed to examine the vasorelaxant and antiproliferative responses to purified green tea epicatechin mixture, (-)epicatechin and (-)epigallocatechin gallate on rat arterial smooth muscle cells. METHODS Changes in isometric force were measured by Grass force transducer and effects on cell proliferation were evaluated using [3H]thymidine incorporation assay. RESULTS Epicatechin mixture, (-)epicatechin and (-)epigallocatechin gallate, which we isolated and purified from jasmine green tea, concentration-dependently, reduced the contractile response to phenylephrine in rat isolated aortic rings with (-)epigallocatechin gallate being more effective. These three agents also inhibited [3H]thymidine incorporation into DNA in cultured rat aortic smooth muscle cells in a concentration-dependent manner. CONCLUSION The purified epicatechin derivatives from jasmine green tea relaxed the isolated rat arteries preconstricted by phenylephrine and inhibited aortic smooth muscle cell proliferation.
Collapse
Affiliation(s)
- Z Y Chen
- Departments of Biochemistry and Department of Physiology, Faculty of Medicine, Chinese University of Hong Kong, Shatin, Hong Kong, China
| | | | | | | | | | | |
Collapse
|