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Interindividual variation in mean leukocyte telomere length (LTL) is associated with cancer and several age-associated diseases. We report here a genome-wide meta-analysis of 37,684 individuals with replication of selected variants in an additional 10,739 individuals. We identified seven loci, including five new loci, associated with mean LTL (P < 5 × 10(-8)). Five of the loci contain candidate genes (TERC, TERT, NAF1, OBFC1 and RTEL1) that are known to be involved in telomere biology. Lead SNPs at two loci (TERC and TERT) associate with several cancers and other diseases, including idiopathic pulmonary fibrosis. Moreover, a genetic risk score analysis combining lead variants at all 7 loci in 22,233 coronary artery disease cases and 64,762 controls showed an association of the alleles associated with shorter LTL with increased risk of coronary artery disease (21% (95% confidence interval, 5-35%) per standard deviation in LTL, P = 0.014). Our findings support a causal role of telomere-length variation in some age-related diseases.

Original publication

DOI

10.1038/ng.2528

Type

Journal article

Journal

Nat Genet

Publication Date

04/2013

Volume

45

Pages

422 - 427e2

Keywords

Biomarkers, Tumor, Case-Control Studies, Disease, Female, Genetic Loci, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Leukocytes, Male, Meta-Analysis as Topic, Risk Factors, Telomerase, Telomere