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Variants associated withHHIP expression have sex-differential effects on lung function

  • Katherine A. Fawcett
  • , Louise V. Wain
  • , Ma'en Obeidat
  • , Carl Melbourne
  • , Nick Shrine
  • , Anna L. Guyatt
  • , Catherine John
  • , Jian'an Luan
  • , Anne Richmond
  • , Marta R. Moksnes
  • , Raquel Granell
  • , Stefan Weiss
  • , Medea Imboden
  • , Sebastian May-Wilson
  • , Pirro Hysi
  • , Thibaud S. Boutin
  • , Laura Portas
  • , Claudia Flexeder
  • , Sarah E. Harris
  • , Carol A. Wang
  • Leo Pekka Lyytikäinen, Teemu Palviainen, Rachel E. Foong, Dirk Keidel, Cosetta Minelli, Claudia Langenberg, Yohan Bossé, Maarten Van den Berge, Don D. Sin, Ke Hao, Archie Campbell, David Porteous, Sandosh Padmanabhan, Blair H. Smith, David M. Evans, Sue Ring, Arnulf Langhammer, Kristian Hveem, Cristen Willer, Ralf Ewert, Beate Stubbe, Nicola Pirastu, Lucija Klaric, Peter K. Joshi, Karina Patasova, Mangino Massimo, Ozren Polasek, John M. Starr, Stefan Karrasch, Konstantin Strauch, Thomas Meitinger, Igor Rudan, Taina Rantanen, Kirsi Pietiläinen, Mika Kähönen, Olli T. Raitakari, Graham L. Hall, Peter D. Sly, Craig E. Pennell, Jaakko Kaprio, Terho Lehtimäki, Veronique Vitart, Ian J. Deary, Debbie Jarvis, James F. Wilson, Tim Spector, Nicole Probst-Hensch, Nicholas J. Wareham, Henry Völzke, John Henderson, David P. Strachan, Ben M. Brumpton, Caroline Hayward, Ian P. Hall, Martin D. Tobin
  • University of Leicester
  • Glenfield Hospital
  • The University of British Columbia Centre for Heart Lung Innovation
  • University of Cambridge School of Clinical Medicine
  • University of Edinburgh
  • Norwegian University of Science and Technology
  • University of Bristol
  • University Medicine Greifswald
  • Swiss Tropical and Public Health Institute (Swiss TPH)
  • University of Basel
  • The University of Edinburgh Medical School
  • King's College London
  • National Heart and Lung Institute
  • Helmholtz Zentrum München German Research Center for Environmental Health
  • School of Medicine and Public Health
  • Fimlab Laboratories
  • Tampere University
  • Tampere University Hospital
  • University of Helsinki
  • University of Western Australia
  • Curtin University
  • Université Laval
  • University Medical Center Groningen
  • University of British Columbia
  • Mount Sinai School of Medicine
  • Western General Hospital
  • University of Glasgow
  • Ninewells Hospital and Medical School
  • Bristol Medical School
  • University of Queensland
  • University of Michigan, Ann Arbor
  • University of Michigan Medical School
  • University of Split Medical School
  • Ludwig-Maximilians-Universität München
  • Member of the German Center for Lung Research (DZL)
  • University of Munich
  • University of Jyväskylä
  • Helsinki University Central Hospital
  • University of Turku and Turku University Hospital
  • University of Turku
  • Turku University Hospital
  • Imperial College London
  • St. George's University of London
  • St. Olavs Hospital
  • University of Nottingham

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Background: Lung function is highly heritable and differs between the sexes throughout life. However, little is known about sex-differential genetic effects on lung function. We aimed to conduct the first genome-wide genotype-by-sex interaction study on lung function to identify genetic effects that differ between males and females. Methods: We tested for interactions between 7,745,864 variants and sex on spirometry-based measures of lung function in UK Biobank (N=303,612), and sought replication in 75,696 independent individuals from the SpiroMeta consortium. Results: Five independent single-nucleotide polymorphisms (SNPs) showed genome-wide significant (P<5x10 -8) interactions with sex on lung function, and 21 showed suggestive interactions (P<1x10 -6). The strongest signal, from rs7697189 (chr4:145436894) on forced expiratory volume in 1 second (FEV 1) (P=3.15x10 -15), was replicated (P=0.016) in SpiroMeta. The C allele increased FEV 1 more in males (untransformed FEV 1 β=0.028 [SE 0.0022] litres) than females (β=0.009 [SE 0.0014] litres), and this effect was not accounted for by differential effects on height, smoking or pubertal age. rs7697189 resides upstream of the hedgehog-interacting protein ( HHIP) gene and was previously associated with lung function and HHIP lung expression. We found HHIP expression was significantly different between the sexes (P=6.90x10 -6), but we could not detect sex differential effects of rs7697189 on expression. Conclusions: We identified a novel genotype-by-sex interaction at a putative enhancer region upstream of the HHIP gene. Establishing the mechanism by which HHIP SNPs have different effects on lung function in males and females will be important for our understanding of lung health and diseases in both sexes.

Original languageEnglish
Article number111
JournalWellcome Open Research
Volume5
DOIs
StatePublished - 2020

Keywords

  • Expression
  • Genome-wide interaction study
  • HHIP
  • Lung function
  • Sex

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