Journal
JOURNAL OF INFECTIOUS DISEASES
Volume 217, Issue 4, Pages 650-655Publisher
OXFORD UNIV PRESS INC
DOI: 10.1093/infdis/jix593
Keywords
Hepatitis C; interferon; interferon-stimulated genes; IFNL4; peripheral blood mononuclear cells
Categories
Funding
- National Institutes of Health [DK095031, AI091707, AI111825]
- John C. Whitehead Presidential Fellowship
- American Cancer Society [02-196]
- Rockefeller University Center for Clinical and Translational Science Award [UL1RR024143]
- Center for Basic and Translational Research on Disorders of the Digestive System through the Leona M. and Harry B. Helmsley Charitable Trust
- Greenberg Medical Research Institute
- Starr Foundation
- Ronald A. Shellow, M.D. Memorial Fund
- Kaleida Health Foundation
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Polymorphisms at IFNL4 strongly influence spontaneous resolution and interferon therapeutic response in hepatitis C virus (HCV) infection. In chronic HCV, unfavorable alleles are associated with elevated interferon (IFN)-stimulated gene (ISG) expression in the liver, but extrahepatic effects are less well characterized. We used RNA sequencing (RNA-Seq) to examine whether IFNL4 genetic variation (rs368234815) modulates ISG expression in peripheral blood mononuclear cells (PBMC) during chronic HCV infection. ISG expression was elevated in unstimulated PBMC homozygous for the unfavorable Delta G IFNL4 variant; expression following IFN-alpha stimulation was comparable across genotypes. These findings suggest that lambda interferons may have broader systemic effects during HCV infection.
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