Common genetic variants modulate pathogen-sensing responses in human dendritic cells

Mark N. Lee, Chun Ye, Alexandra Chloé Villani, Towfique Raj, Weibo Li, Thomas M. Eisenhaure, Selina H. Imboywa, Portia I. Chipendo, F. Ann Ran, Kamil Slowikowski, Lucas D. Ward, Khadir Raddassi, Cristin McCabe, Michelle H. Lee, Irene Y. Frohlich, David A. Hafler, Manolis Kellis, Soumya Raychaudhuri, Feng Zhang, Barbara E. StrangerChristophe O. Benoist, Philip L. De Jager, Aviv Regev, Nir Hacohen

Research output: Contribution to journalArticlepeer-review

326 Scopus citations

Abstract

Little is known about how human genetic variation affects the responses to environmental stimuli in the context of complex diseases. Experimental and computational approaches were applied to determine the effects of genetic variation on the induction of pathogen-responsive genes in human dendritic cells. We identified 121 common genetic variants associated in cis with variation in expression responses to Escherichia coli lipopolysaccharide, influenza, or interferon-β (IFN-β). We localized and validated causal variants to binding sites of pathogen-activated STAT (signal transducer and activator of transcription) and IRF (IFN-regulatory factor) transcription factors. We also identified a common variant in IRF7 that is associated in trans with type I IFN induction in response to influenza infection. Our results reveal common alleles that explain interindividual variation in pathogen sensing and provide functional annotation for genetic variants that alter susceptibility to inflammatory diseases.

Original languageEnglish
Article number1246980
JournalScience
Volume343
Issue number6175
DOIs
StatePublished - 2014
Externally publishedYes

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