Abstract
Clonal hematopoiesis (CH), the clonal expansion of a blood stem cell and its progeny driven by somatic driver mutations, affects over a third of people, yet remains poorly understood. Here we analyze genetic data from 200,453 UK Biobank participants to map the landscape of inherited predisposition to CH, increasing the number of germline associations with CH in European-ancestry populations from 4 to 14. Genes at new loci implicate DNA damage repair (PARP1, ATM, CHEK2), hematopoietic stem cell migration/homing (CD164) and myeloid oncogenesis (SETBP1). Several associations were CH-subtype-specific including variants at TCL1A and CD164 that had opposite associations with DNMT3A- versus TET2-mutant CH, the two most common CH subtypes, proposing key roles for these two loci in CH development. Mendelian randomization analyses showed that smoking and longer leukocyte telomere length are causal risk factors for CH and that genetic predisposition to CH increases risks of myeloproliferative neoplasia, nonhematological malignancies, atrial fibrillation and blood epigenetic ageing.
14 Authors
- Siddhartha P. Kar
- Pedro M. Quiros
- Muxin Gu
- Tao Jiang
- Jonathan Mitchell
- Ryan Langdon
- Vivek Iyer
- Clea Barcena
- M. S. Vijayabaskar
- Margarete A. Fabre
- Paul Carter
- Slavé Petrovski
- Stephen Burgess
- George S. Vassiliou
3 Applications
Application ID | Title |
26041 | Large-Scale Sequencing in the UK Biobank to Facilitate Gene Discovery, Genome Sciences, and Precision Medicine |
29202 | Epidemiologic and genetic analyses of aging-associated diseases and mortality |
56844 | Understanding clonal haematopoiesis and the preclinical evolution of haematological cancers |