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Association between telomere length and risk of cancer and non-neoplastic diseases a mendelian randomization study

  • Telomeres Mendelian Randomization Collaboration
  • University of Bristol
  • University of Cambridge
  • University of Queensland
  • Innsbruck Medical University
  • Rutgers New Jersey Medical School
  • King's College London
  • Guy's and St Thomas' NHS Foundation Trust
  • Royal Marsden NHS Foundation Trust
  • University of Texas MD Anderson Cancer Center
  • Queensland Institute of Medical Research
  • University of Leeds
  • Boston University
  • University of Virginia
  • University of Toronto
  • Dartmouth College
  • Dana-Farber Cancer Institute
  • National Institutes of Health
  • Helenic Health Foundation
  • National and Kapodistrian University of Athens
  • Utrecht University
  • University of Tromsø – The Arctic University of Norway
  • Institute Catala Oncologia
  • German Cancer Research Center
  • Université Paris-Saclay
  • Institut Gustave Roussy
  • Human Genetics Foundation (HuGeF)
  • University of Melbourne
  • Aarhus University
  • Imperial College London
  • Azienda Ospedaliera Civile M.P. Arezzo
  • Umeå University
  • University of Otago
  • University of Leicester
  • University of Edinburgh
  • Stellenbosch University
  • Geisinger Medical Center
  • International Agency for Research on Cancer
  • University of California at San Francisco
  • Memorial Sloan-Kettering Cancer Center
  • Mayo Clinic College of Medicine and Science
  • Yale University
  • Johns Hopkins University
  • Indiana University-Purdue University Indianapolis
  • Indiana University Bloomington
  • University of Pennsylvania
  • Radboud University Nijmegen
  • Netherlands Comprehensive Cancer Organization
  • Queen Mary University of London
  • Institute of Cancer Research
  • Helmholtz Zentrum München - German Research Center for Environmental Health
  • University of Michigan, Ann Arbor
  • Georgetown University
  • University of Freiburg
  • University of Verona
  • RIKEN
  • University of Oxford
  • Queensland University of Technology
  • University of Washington
  • University of Cincinnati
  • Massachusetts General Hospital
  • Wake Forest University
  • Brigham and Women’s Hospital
  • University of Colorado Anschutz Medical Campus
  • Sir Charles Gairdner Hospital
  • PathWest Laboratory Medicine WA
  • University of Western Australia
  • University of Texas Health Science Center at Houston
  • Erasmus University Rotterdam
  • Columbia University
  • University of Bonn
  • Anhui Medical University
  • University of Chinese Academy of Sciences
  • National Jewish Health
  • University of California at Los Angeles
  • Charité – Universitätsmedizin Berlin
  • University of Lübeck
  • Peking University
  • Stanford University
  • Vanderbilt University
  • Friedrich-Alexander University Erlangen-Nürnberg
  • Shonan Kamakura General Hospital
  • The University of Tokyo
  • Teikyo Heisei University
  • Agency for Science, Technology and Research, Singapore
  • Sun Yat-Sen University Cancer Center
  • Chinese Academy of Medical Sciences
  • Lund University
  • University of Pisa
  • University Hospital of Schleswig-Holstein
  • Kiel University
  • Hospital Universitario Nuestra Senora de Candelaria
  • Centro de Investigacion Biomedica en Red Enfermedades Respiratorias (CIBERES)
  • The University of Chicago
  • Sungkyunkwan University
  • INSERM U1052
  • INSERM U830
  • University of Alabama at Birmingham
  • The University of Hong Kong
  • Chang Gung Memorial Hospital
  • Chang Gung University
  • Flinders University
  • Soongsil University
  • Heidelberg University 
  • Kobe University
  • National Heart Lung and Blood Institute’s and Boston University’s Framingham Heart Study
  • Weill Cornell Medicine-Qatar
  • Wellcome Trust Sanger Institute
  • University of Maryland, Baltimore
  • Singapore National Eye Center
  • National University of Singapore
  • Duke-NUS Medical School
  • Capital Medical University

Research output: Contribution to journalArticlepeer-review

Abstract

IMPORTANCE: The causal direction and magnitude of the association between telomere length and incidence of cancer and non-neoplastic diseases is uncertain owing to the susceptibility of observational studies to confounding and reverse causation. OBJECTIVE: To conduct a Mendelian randomization study, using germline genetic variants as instrumental variables, to appraise the causal relevance of telomere length for risk of cancer and non-neoplastic diseases. DATA SOURCES: Genomewide association studies (GWAS) published up to January 15, 2015. STUDY SELECTION: GWAS of noncommunicable diseases that assayed germline genetic variation and did not select cohort or control participants on the basis of preexisting diseases. Of 163 GWAS of noncommunicable diseases identified, summary data from 103 were available. DATA EXTRACTION AND SYNTHESIS: Summary association statistics for single nucleotide polymorphisms (SNPs) that are strongly associated with telomere length in the general population. MAIN OUTCOMES AND MEASURES: Odds ratios (ORs) and 95% confidence intervals (CIs) for disease per standard deviation (SD) higher telomere length due to germline genetic variation. RESULTS: Summary data were available for 35 cancers and 48 non-neoplastic diseases, corresponding to 420 081 cases (median cases, 2526 per disease) and 1 093 105 controls (median, 6789 per disease). Increased telomere length due to germline genetic variation was generally associated with increased risk for site-specific cancers. The strongest associations (ORs [95% CIs] per 1-SD change in genetically increased telomere length) were observed for glioma, 5.27 (3.15-8.81); serous low-malignant-potential ovarian cancer, 4.35 (2.39-7.94); lung adenocarcinoma, 3.19 (2.40-4.22); neuroblastoma, 2.98 (1.92-4.62); bladder cancer, 2.19 (1.32-3.66); melanoma, 1.87 (1.55-2.26); testicular cancer, 1.76 (1.02-3.04); kidney cancer, 1.55 (1.08-2.23); and endometrial cancer, 1.31 (1.07-1.61). Associations were stronger for rarer cancers and at tissue sites with lower rates of stem cell division. There was generally little evidence of association between genetically increased telomere length and risk of psychiatric, autoimmune, inflammatory, diabetic, and other non-neoplastic diseases, except for coronary heart disease (OR, 0.78 [95% CI, 0.67-0.90]), abdominal aortic aneurysm (OR, 0.63 [95% CI, 0.49-0.81]), celiac disease (OR, 0.42 [95% CI, 0.28-0.61]) and interstitial lung disease (OR, 0.09 [95% CI, 0.05-0.15]). CONCLUSIONS AND RELEVANCE: It is likely that longer telomeres increase risk for several cancers but reduce risk for some non-neoplastic diseases, including cardiovascular diseases.

Original languageEnglish
Pages (from-to)636-651
Number of pages16
JournalJAMA Oncology
Volume3
Issue number5
DOIs
Publication statusPublished - 1 May 2017

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