Targeting lipid metabolism in the treatment of hepatitis C virus infection

被引:53
作者
Amemiya, Fumitake [1 ]
Maekawa, Shinya [1 ]
Itakura, Yoshie [1 ]
Kanayama, Asuka [1 ]
Matsui, Akira [1 ]
Takano, Shinichi [1 ]
Yamaguchi, Tatsuya [1 ]
Itakura, Jun [1 ]
Kitamura, Takatoshi [1 ]
Inoue, Taisuke [1 ]
Sakamoto, Minoru [1 ]
Yamauchi, Kozue [1 ]
Okada, Shunichi [1 ]
Yamashita, Atsuya [2 ]
Sakamoto, Naoya [3 ]
Itoh, Masahiko [2 ]
Enomoto, Nobuyuki [1 ]
机构
[1] Univ Yamanashi, Dept Internal Med 1, Fac Med, Yamanashi 4093898, Japan
[2] Univ Yamanashi, Dept Microbiol, Fac Med, Yamanashi 4093898, Japan
[3] Tokyo Med & Dent Univ, Dept Gastroenterol & Hepatol, Tokyo, Japan
关键词
D O I
10.1086/525287
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Recently, microdomains of organelle membranes rich in sphingomyelin and cholesterol (called "lipid rafts") have been considered to act as a scaffold for the hepatitis C virus(HCV) replication complex. Using the HCV cell culture system, we investigated the effect of myriocin, a sphingomyelin synthesis inhibitor, on HCV replication. We also investigated the combined effect of myriocin with interferon (IFN) and myriocin with simvastatin. Myriocin suppressed replication of both a genotype 1b subgenomic HCV replicon (Huh7/Rep-Feo) and genotype 2a infectious HCV (JFH-1 HCV) in a dose-dependent manner (for subgenomic HCV-1b, maximum of 79% at 1000 nmol/L; for genomic HCV-2a, maximum of 40% at 1000 nmol/L). Combination treatment with myriocin and IFN or myriocin and simvastatin attenuated HCV RNA replication synergistically in Huh7/Rep-Feo cells. Our data demonstrate that the sphingomyelin synthesis inhibitor strongly suppresses replication of both the subgenomic HCV-1b replicon and the JFH-1 strain of genotype 2a infectious HCV, indicating that lipid metabolism could be a novel target for HCV therapy.
引用
收藏
页码:361 / 370
页数:10
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