MBOAT7 rs641738 increases risk of liver inflammation and transition to fibrosis in chronic hepatitis C

Khaled Thabet, Anastasia Asimakopoulos, Maryam Shojaei, Manuel Romero-Gomez, Alessandra Mangia, William L. Irving, Thomas Berg, Gregory J. Dore, Henning Grønbæk, David Sheridan, Maria Lorena Abate, Elisabetta Bugianesi, Martin Weltman, Lindsay Mollison, Wendy Cheng, Stephen Riordan, Janett Fischer, Ulrich Spengler, Jacob Nattermann, Ahmed WahidAngela Rojas, Rose White, Mark W. Douglas, Duncan McLeod, Elizabeth Powell, Christopher Liddle, David Van Der Poorten, Jacob George, Mohammed Eslam, Rocio Gallego-Duran, Tanya Applegate, Margaret Bassendine, Chiara Rosso, Lavinia Mezzabotta, Reynold Leung, Barbara Malik, Gail Matthews, Jason Grebely, Vincenzo Fragomeli, Julie R. Jonsson, Rosanna Santoro

Research output: Contribution to journalArticlepeer-review

Abstract

Cirrhosis likely shares common pathophysiological pathways despite arising from a variety of liver diseases. A recent GWAS identified rs641738, a polymorphism in the MBOAT7 locus, as being associated with the development of alcoholic cirrhosis. Here we explore the role of this variant on liver inflammation and fibrosis in two cohorts of patients with chronic hepatitis C. In 2,051 patients, rs641738 associated with severe hepatic inflammation and increased risk of fibrosis, as well as fast fibrosis progression. At functional level, rs641738 associated with MBOAT7 transcript and protein levels in liver and blood, and with serum inflammatory, oxidative stress and macrophage activation markers. MBOAT7 was expressed in immune cell subsets, implying a role in hepatic inflammation. We conclude that the MBOAT7 rs641738 polymorphism is a novel risk variant for liver inflammation in hepatitis C, and thereby for liver fibrosis.

Original languageEnglish
Article number12757
JournalNature Communications
Volume7
DOIs
Publication statusPublished - Sep 15 2016

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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