Validation of human telomere length multi-ancestry meta-analysis association signals identifies POP5 and KBTBD6 as human telomere length regulation genes
- PMID: 38789417
- PMCID: PMC11126610
- DOI: 10.1038/s41467-024-48394-y
Validation of human telomere length multi-ancestry meta-analysis association signals identifies POP5 and KBTBD6 as human telomere length regulation genes
Abstract
Genome-wide association studies (GWAS) have become well-powered to detect loci associated with telomere length. However, no prior work has validated genes nominated by GWAS to examine their role in telomere length regulation. We conducted a multi-ancestry meta-analysis of 211,369 individuals and identified five novel association signals. Enrichment analyses of chromatin state and cell-type heritability suggested that blood/immune cells are the most relevant cell type to examine telomere length association signals. We validated specific GWAS associations by overexpressing KBTBD6 or POP5 and demonstrated that both lengthened telomeres. CRISPR/Cas9 deletion of the predicted causal regions in K562 blood cells reduced expression of these genes, demonstrating that these loci are related to transcriptional regulation of KBTBD6 and POP5. Our results demonstrate the utility of telomere length GWAS in the identification of telomere length regulation mechanisms and validate KBTBD6 and POP5 as genes affecting telomere length regulation.
© 2024. The Author(s).
Conflict of interest statement
The authors declare the following competing interests: Juan C. Celedon received inhaled steroids from Merck for an NIH_funded study, unrelated to this work. Ivana V. Yang is a consultant for Eleven P15, a company focused on the early diagnosis and treatment of lung fibrosis. Dr. Patrick T. Ellinor receives sponsored research support from Bayer AG, IBM Research, Bristol Myers Squibb and Pfizer; he has also served on advisory boards or consulted for Bayer AG, MyoKardia and Novartis. Dr. David Schwartz is a founder and chief scientific officer of Eleven P15, a company focused on the early diagnosis and treatment of lung fibrosis. Laura M. Raffield is a consultant for the TOPMed Admistrative Coordinating Center (through Westat). Alexis Battle is a shareholder in Alphabet, Inc.; consultant for Third Rock Ventures, LLC; and founder of CellCipher, Inc. The views expressed in this manuscript are those of the authors and do not necessarily represent the views of the National Heart, Lung, and Blood Institute; the National Institutes of Health; or the U.S. Department of Health and Human Services. The remaining authors declare no competing interests.
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