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Entry of hepatitis C virus into the cell: a therapeutic target

José Antonio Del Campo1, Ángela Rojas, Manuel Romero-Gómez

  • 1Unit for Medical and Surgical Management of Digestive Diseases, Center for Biomedical Research in Digestive and Liver Diseases Network, Valme University Hospital, University of Seville, E-41014 Sevilla, Spain.

World Journal of Gastroenterology
|September 13, 2012
PubMed

Insights

Hepatitis C virus entry into liver cells involves specific receptors like NPC1L1. Targeting these lipid-related receptors, such as with ezetimibe, may offer new ways to control hepatitis C outbreaks.

Area of Science:

  • Hepatology
  • Virology
  • Molecular Biology

Background:

  • Viral entry into hepatocytes is mediated by specific cellular receptors, influencing infection dynamics.
  • The role of individual receptors in hepatitis C virus (HCV) infection, clearance, and persistence remains debated.
  • HCV circulates as a lipoviroparticle, suggesting a link between viral infection and host lipid metabolism.

Purpose of the Study:

  • To discuss the role of hepatocyte receptors in viral entry, focusing on NPC1L1.
  • To explore therapeutic strategies for controlling hepatitis C outbreaks by targeting lipid metabolism and related receptors.

Main Methods:

  • Literature review and discussion of existing research on hepatocyte receptors and HCV entry.
  • Analysis of the interaction between HCV, host lipid metabolism, and the NPC1L1 receptor.
  • Examination of ezetimibe's potential role in blocking HCV entry via NPC1L1.

Main Results:

  • Niemann-Pick type C1 like 1 (NPC1L1) has been identified as a key receptor for HCV entry into hepatocytes.
  • Ezetimibe, an anti-cholesterol drug, demonstrates potential in blocking NPC1L1-mediated HCV entry.
  • HCV infection appears to modulate host lipid metabolism, influenced by genetic factors.

Conclusions:

  • NPC1L1 is a significant factor in HCV hepatocyte entry.
  • Modulating lipid-related receptors, like NPC1L1 with ezetimibe, presents a potential therapeutic avenue for hepatitis C.
  • Understanding the interplay between HCV, lipids, and host receptors is crucial for developing novel treatment strategies.
Keywords:
EzetimibeHepatitis C virus entryLipid metabolismNiemann-Pick type C1 like 1 gene

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