IL28B and the Control of Hepatitis C Virus Infection

被引:200
作者
Balagopal, Ashwin [1 ]
Thomas, David L. [1 ,2 ]
Thio, Chloe L. [1 ]
机构
[1] Johns Hopkins Med Inst, Dept Med, Div Infect Dis, Ctr Viral Hepatitis, Baltimore, MD 21205 USA
[2] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA
基金
美国国家卫生研究院;
关键词
IL28B; Hepatitis C Virus; Interferon Lambda; Interferon Sensitivity; HCV Treatment; GENOME-WIDE ASSOCIATION; GENETIC-VARIATION; INTERFERON-LAMBDA; INTERLEUKIN; 28B; IFN-LAMBDA; GENOTYPE; EXPRESSION; RIBAVIRIN; RESPONSES; THERAPY;
D O I
10.1053/j.gastro.2010.10.004
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Treatment-induced control and spontaneous clearance of hepatitis C virus (HCV) infection are affected by various host factors. Polymorphisms in the region of the gene IL28B are associated with HCV clearance, implicating the gene product, interferon (IFN)-lambda 3, in the immune response to HCV. Although it is not clear how the IL28B haplotype affects HCV clearance, IFN-lambda 3 up-regulates interferon-stimulated genes, similar to IFN-alpha and IFN-beta but via a different receptor. There is also evidence that IFN-lambda 3 affects the adaptive immune response. The IL28B genotype can be considered, along with other factors, in predicting patient responses to therapy with pegylated IFN-alpha and ribavirin. We review the genetic studies that uncovered the association between IL28B and HCV clearance, the biology of IFN-lambda 3, the clinical implications of the genetic association, and areas of future research.
引用
收藏
页码:1865 / 1876
页数:12
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