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Molecules. 2018 Aug 20;23(8). pii: E2083. doi: 10.3390/molecules23082083.

Suppression of Hepatitis C Virus Genome Replication and Particle Production by a Novel Diacylglycerol Acyltransferases Inhibitor.

Author information

1
College of Pharmacy, Dongguk University, Goyang 10326, Korea. gkdlfnwhel@nate.com.
2
School of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea. lighthil@gmail.com.
3
College of Pharmacy, Dongguk University, Goyang 10326, Korea. aldlf998@dongguk.ac.kr.
4
College of Pharmacy, Dongguk University, Goyang 10326, Korea. flatronsky@gmail.com.
5
College of Pharmacy, Dongguk University, Goyang 10326, Korea. ryche99@naver.com.
6
Hepatitis Research Laboratory, Department of Applied Molecular Virology, Institut Pasteur Korea, 696, Seongnam 13488, Korea. thoa.than@ip-korea.org.
7
Hepatitis Research Laboratory, Department of Applied Molecular Virology, Institut Pasteur Korea, 696, Seongnam 13488, Korea. phuong.nguyen@ip-korea.org.
8
Hepatitis Research Laboratory, Department of Applied Molecular Virology, Institut Pasteur Korea, 696, Seongnam 13488, Korea. marc.windisch@ip-korea.org.
9
College of Pharmacy, Dongguk University, Goyang 10326, Korea. kaylee@dongguk.edu.
10
School of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea. ychoi@korea.ac.kr.
11
College of Pharmacy, Dongguk University, Goyang 10326, Korea. lkj640@gmail.com.

Abstract

Diacylglycerol acyltransferases (DGATs) play a critical role in the biosynthesis of endogenous triglycerides (TGs) and formation of lipid droplets (LDs) in the liver. In particular, one member of DGATs, DGAT-1 was reported to be an essential host factor for the efficient production of hepatitis C virus (HCV) particles. By utilizing our previously characterized three different groups of twelve DGAT inhibitors, we found that one of the DGAT inhibitors, a 2-((4-adamantylphenoxy) methyl)-N-(furan-2-ylmethyl)-1H-benzo[d]imidazole-5-carboxam (10j) is a potent suppressor of both HCV genome replication and particle production. 10j was able to induce inhibition of these two critical viral functions in a mutually separate manner. Abrogation of the viral genome replication by 10j led to a significant reduction in the viral protein expression as well. Interestingly, we found that its antiviral effect did not depend on the reduction of TG biosynthesis by 10j. This suggests that the inhibitory activity of 10j against DGATs may not be directly related with its antiviral action.

KEYWORDS:

DGAT inhibitor; HCV genome replication; HCV particle production; diacylglycerol acyltransferase (DGAT); hepatitis C virus (HCV); lipid droplet (LD)

PMID:
30127285
DOI:
10.3390/molecules23082083
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