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Up-regulation of glycolipid transfer protein by bicyclol causes spontaneous restriction of hepatitis C virus replication by Meng-Hao Huang; Hu Li; Rong Xue; Jianrui Li; Lihua Wang; Junjun Cheng; Zhouyi Wu; Wenjing Li; Jinhua Chen; Xiaoqin Lv; Qiang Li; Pei Lan; Limin Zhao; Yongfeng Yang; Zonggen Peng; Jiandong Jiang is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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Bicyclol is a synthetic drug for hepatoprotection in clinic since 2004. Preliminary clinical observations suggest that bicyclol might be active against hepatitis C virus (HCV) with unknown mechanism. Here, we showed that bicyclol significantly inhibited HCV replication __in vitro__ and in hepatitis C patients. Using bicyclol as a probe, we identified glycolipid transfer protein (GLTP) to be a novel restrictive factor for HCV replication. The GLTP preferentially bound host vesicle-associated membrane protein-associated protein-A (VAP-A) in competition with the HCV NS5A, causing an interruption of the complex formation between VAP-A and HCV NS5A. As the formation of VAP-A/NS5A complex is essential for viral RNA replication, up-regulation of GLTP by bicyclol reduced the level of VAP-A/NS5A complex and thus inhibited HCV replication. Bicyclol also exhibited an inhibition on HCV variants resistant to direct-acting antiviral agents (DAAs) with an efficacy identical to that on wild type HCV. In combination with bicyclol, DAAs inhibited HCV replication in a synergistic fashion. GLTP appears to be a newly discovered host restrictive factor for HCV replication, Up-regulation of GLTP causes s

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Author

Meng-Hao Huang; Hu Li; Rong Xue; Jianrui Li; Lihua Wang; Junjun Cheng; Zhouyi Wu; Wenjing Li; Jinhua Chen; Xiaoqin Lv; Qiang Li; Pei Lan; Limin Zhao; Yongfeng Yang; Zonggen Peng; Jiandong Jiang

Publisher

Elsevier ; Elsevier BV; Amsterdam: Elsevier (ISSN 2211-3835)

Published

2019

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)