Cited by 297Interstitial Lung Diseases and Idiopathic Pulmonary FibrosisGenetic Associations and EpidemiologyOccupational and environmental lung diseases

Genetic variants associated with susceptibility to idiopathic pulmonary fibrosis in people of European ancestry: a genome-wide association study

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Abstract

Background Idiopathic pulmonary fibrosis (IPF) is a chronic progressive lung disease with high mortality, uncertain cause, and few treatment options. Studies have identified a significant genetic risk associated with the development of IPF; however, mechanisms by which genetic risk factors promote IPF remain unclear. We aimed to identify genetic variants associated with IPF susceptibility and provide mechanistic insight using gene and protein expression analyses. Methods We used a two-stage approach: a genome-wide association study in patients with IPF of European ancestry recruited from nine different centres in the UK and controls selected from UK Biobank (stage 1) matched for age, sex, and smoking status; and a follow-up of associated genetic variants in independent datasets of patients with IPF and controls from two independent US samples from the Chicago consortium and the Colorado consortium (stage 2). We investigated the effect of novel signals on gene expression in large transcriptomic and genomic data resources, and examined expression using lung tissue samples from patients with IPF and controls. Findings 602 patients with IPF and 3366 controls were selected for stage 1. For stage 2, 2158 patients with IPF and 5195 controls were selected. We identified a novel genome-wide significant signal of association with IPF susceptibility near A-kinase anchoring protein 13 ( AKAP13 ; rs62025270, odds ratio [OR] 1·27 [95% CI 1·18–1·37], p=1·32 × 10 −9 ) and confirmed previously reported signals, including in mucin 5B ( MUC5B ; rs35705950, OR 2·89 [2·56–3·26], p=1·12 × 10 −66 ) and desmoplakin ( DSP ; rs2076295, OR 1·44 [1·35–1·54], p=7·81 × 10 −28 ). For rs62025270, the allele A associated with increased susceptibility to IPF was also associated with increased expression of AKAP13 mRNA in lung tissue from patients who had lung resection procedures (n=1111). We showed that AKAP13 is expressed in the alveolar epithelium and lymphoid follicles from patients with IPF, and AKAP13 mRNA expression was 1·42-times higher in lung tissue from patients with IPF (n=46) than that in lung tissue from controls (n=51). Interpretation AKAP13 is a Rho guanine nucleotide exchange factor regulating activation of RhoA, which is known to be involved in profibrotic signalling pathways. The identification of AKAP13 as a susceptibility gene for IPF increases the prospect of successfully targeting RhoA pathway inhibitors in patients with IPF. Funding UK Medical Research Council, National Heart, Lung, and Blood Institute of the US National Institutes of Health, Agencia Canaria de Investigación, Innovación y Sociedad de la Información, Spain, UK National Institute for Health Research, and the British Lung Foundation.

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Authors
Allen, R. J., Porte, J., Braybrooke, R., Flores, C., Fingerlin, T. E., Oldham, J. M., Guillen-Guio, B., Ma, S.-F., Okamoto, T., John, A. E., Obeidat, M., Yang, I. V., Henry, A., Hubbard, R. B., Navaratnam, V., Saini, G., Thompson, N., Booth, H. L., Hart, S. P., Hill, M. R., Hirani, N., Maher, T. M., McAnulty, R. J., Millar, A. B., Molyneaux, P. L., Parfrey, H., Rassl, D. M., Whyte, M. K. B., Fahy, W. A., Marshall, R. P., Oballa, E., Bossé, Y., Nickle, D. C., Sin, D. D., Timens, W., Shrine, N., Sayers, I., Hall, I. P., Noth, I., Schwartz, D. A., Tobin, M. D., Wain, L. V., & Jenkins, R. G.
Affiliations
  • University of Leicester (GB)
  • University of Nottingham (GB)
  • Universidad de La Laguna (ES)
  • National Jewish Health (US)
  • University of California, Davis (US)
  • University of Chicago (US)
  • University of Colorado Denver (US)
  • University of British Columbia (CA)
  • University College Hospital (GB)
  • Hull York Medical School (GB)
  • University of Oxford (GB)
  • Centre for Inflammation Research (GB)
  • National Institute for Health and Care Research (GB)
  • University College London (GB)
  • University of Bristol (GB)
  • Royal Papworth Hospital (GB)
  • GlaxoSmithKline (United Kingdom) (GB)
  • Institut universitaire de cardiologie et de pneumologie de Québec (CA)
  • Merck & Co., Inc., Rahway, NJ, USA (United States) (US)
  • University Medical Center Groningen (NL)
Corresponding author
Wain, Louise V
Venue
The Lancet Respiratory Medicine
Publisher
Elsevier BV
Published
2017-11
Volume
5
Issue
11
Pages
869-880
ISSN
2213-2600 (ISSN-L)
OpenAlex
W2767079004
Cited by
297
References
54
Citations by year
2026: 21 · 2025: 28 · 2024: 24 · 2023: 39 · 2022: 42 · 2021: 40 · 2020: 45 · 2019: 30 · 2018: 25 · 2017: 2
FWCI
23.07
Type
journal article
Language
en
Open access
Locations
  • The Lancet Respiratory Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
  • Nottingham ePrints (University of Nottingham) (submittedVersion, cc-by)
  • UCL Discovery (University College London) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
  • Leicester Research Archive (University of Leicester) (submittedVersion, cc-by)
  • Repository@Nottingham (University of Nottingham) (submittedVersion, cc-by)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, cc-by)
  • Bristol Research (University of Bristol) (submittedVersion, cc-by)
  • Spiral (Imperial College London) (submittedVersion, other-oa)
Funders
  • National Heart, Lung, and Blood Institute (P01 HL092870, R01 HL097163)
  • National Institute for Health and Care Research
  • Medical Research Council Canada (MC_PC_12010)
  • Agencia Canaria de Investigación, Innovación y Sociedad de la Información (CS-2013–13–017, TESIS2015010057)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Occupational and environmental lung diseases
Keywords
idiopathic pulmonary fibrosis, genetic susceptibility, AKAP13, MUC5B, DSP, genetic variants, lung gene expression, alveolar epithelium, lymphoid follicles, lung resection, European ancestry, transcriptomics, proteomics, lung proteome
MeSH terms
Tertiary Lymphoid Structures, Aged, Europe, Female, Humans, Male, Middle Aged, Proto-Oncogene Proteins, RNA, Messenger, Genetic Variation, Signal Transduction, Minor Histocompatibility Antigens, Case-Control Studies, Genetic Predisposition to Disease, rhoA GTP-Binding Protein, White People, A Kinase Anchor Proteins, Idiopathic Pulmonary Fibrosis, Genome-Wide Association Study, Alveolar Epithelial Cells, Rho Guanine Nucleotide Exchange Factors

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