Association of Clonal Hematopoiesis of Indeterminate Potential with Inflammatory Gene Expression in Patients with COPD

Cells. 2022 Jul 5;11(13):2121. doi: 10.3390/cells11132121.

Abstract

Chronic obstructive pulmonary disease (COPD) is a disease with an inflammatory phenotype with increasing prevalence in the elderly. Expanded population of mutant blood cells carrying somatic mutations is termed clonal hematopoiesis of indeterminate potential (CHIP). The association between CHIP and COPD and its relevant effects on DNA methylation in aging are mainly unknown. Analyzing the deep-targeted amplicon sequencing from 125 COPD patients, we found enhanced incidence of CHIP mutations (~20%) with a predominance of DNMT3A CHIP-mediated hypomethylation of Phospholipase D Family Member 5 (PLD5), which in turn is positively correlated with increased levels of glycerol phosphocholine, pro-inflammatory cytokines, and deteriorating lung function.

Keywords: COPD; clonal hematopoiesis; inflammation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Clonal Hematopoiesis*
  • Gene Expression
  • Hematopoiesis / genetics
  • Humans
  • Mutation / genetics
  • Pulmonary Disease, Chronic Obstructive* / genetics

Grants and funding

This work was supported by the Max Planck Society, the Cardio-Pulmonary Institute (CPI), the German Center for Lung Research (DZL), and the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Project number 268555672—SFB 1213 (Project A01, A05 to SSP, A07 to NW and Project A10* to RS) and European Research Council (ERC) Consolidator Grant (#866051 to SSP).