학술논문

Genetics of circulating inflammatory proteins identifies drivers of immune-mediated disease risk and therapeutic targets
Document Type
Source
Nature Immunology MultiPark: Multidisciplinary research focused on Parkinson´s disease. 24(9):1540-1551
Subject
Medicin och hälsovetenskap
Medicinska och farmaceutiska grundvetenskaper
Medicinsk genetik
Medical and Health Sciences
Basic Medicine
Medical Genetics
Language
English
ISSN
1529-2908
Abstract
Circulating proteins have important functions in inflammation and a broad range of diseases. To identify genetic influences on inflammation-related proteins, we conducted a genome-wide protein quantitative trait locus (pQTL) study of 91 plasma proteins measured using the Olink Target platform in 14,824 participants. We identified 180 pQTLs (59 cis, 121 trans). Integration of pQTL data with eQTL and disease genome-wide association studies provided insight into pathogenesis, implicating lymphotoxin-α in multiple sclerosis. Using Mendelian randomization (MR) to assess causality in disease etiology, we identified both shared and distinct effects of specific proteins across immune-mediated diseases, including directionally discordant effects of CD40 on risk of rheumatoid arthritis versus multiple sclerosis and inflammatory bowel disease. MR implicated CXCL5 in the etiology of ulcerative colitis (UC) and we show elevated gut CXCL5 transcript expression in patients with UC. These results identify targets of existing drugs and provide a powerful resource to facilitate future drug target prioritization.