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Novel Genetic Loci for Nontuberculous Mycobacterial Pulmonary Disease and Potential Protective Effect of Body Mass Index

  • Kyungtaek Park
  • , Hyejin Kim
  • , Hee Jae Huh
  • , Ho Namkoong
  • , Naoki Hasegawa
  • , Tomoyasu Nishimura
  • , Takanori Asakura
  • , Kozo Morimoto
  • , Atsuyuki Kurashima
  • , Yosuke Omae
  • , Yosuke Kawai
  • , Katsushi Tokunaga
  • , Joanne Berghout
  • , Kevin P. Fennelly
  • , Steven M. Holland
  • , Jaeyoung Cho
  • , Jae Joon Yim
  • , Sungho Won
  • , Byung Woo Jhun
  • , Hong Hee Won*
  • *Corresponding author for this work
  • Sungkyunkwan University
  • Keio University
  • Japan Anti-Tuberculosis Association
  • National Center for Global Health and Medicine
  • National Institutes of Health
  • Seoul National University
  • Samsung Medical Center, Sungkyunkwan university

Research output: Contribution to journal › Journal article › peer-review

Abstract

Rationale: Although nontuberculous mycobacteria (NTM) are widespread, only some individuals develop NTM pulmonary disease (NTM-PD), suggesting the involvement of host factors. Objectives: To identify the genomic structure of NTM-PD and determine whether a definitive association exists between NTM-PD and nine risk factors. Methods: We performed genome-wide association studies in two independent Korean cohorts involving 1,949 patients with NTM-PD and 2,955 healthy participants. Significantly associated genetic variants were validated in Japanese (1,137 cases, 1,546 controls) and European (243 cases, 570 controls) cohorts, respectively. Genes associated with lead variants were identified and their roles in NTM-PD were supported by single-cell transcriptome datasets. Genetic correlations and Mendelian randomization between NTM-PD and nine risk factors were examined. Measurements and Main Results: We identified two novel loci and replicated a locus associated with NTM-PD: rs60084385 (odds ratio [OR], 1.34; 95% confidence interval [CI], 1.21–1.48; P = 6.97 × 10−9), rs1479595 (OR, 1.40; 95% CI, 1.27–1.55; P = 7.08 × 10−11), and rs194792 (OR, 1.70; 95% CI, 1.50–1.93; P = 1.39 × 10−16). These associations were replicated in the independent cohorts. The three loci were significantly associated with expression of IL1Rs, PDE8B (phosphodiesterase 8B), and PRKCB (protein kinase C β), respectively, whose involvement in the pathogenesis of NTM-PD was further validated. Among the risk factors, only body mass index demonstrated both a significant genetic correlation with NTM-PD (rg, −0.57; false discovery rate, 1.33 × 10−5) and a potential causal relationship (OR, 0.38; 95% CI, 0.24–0.59; false discovery rate, 8.55 × 10−5). Conclusions: Our study identified three genetic loci associated with NTM-PD and a negative association of body mass index with NTM-PD.

Original languageEnglish
Pages (from-to)2191-2202
Number of pages12
JournalAmerican Journal of Respiratory and Critical Care Medicine
Volume211
Issue number11
DOIs
StatePublished - 2025.11

Keywords

  • BMI
  • genome-wide association study
  • NTM-PD

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