Roles of phosphoinositides and phosphoinositides kinases in hepatitis C virus RNA replication

Arch Pharm Res. 2012 Oct;35(10):1701-11. doi: 10.1007/s12272-012-1001-2. Epub 2012 Nov 9.

Abstract

Phosphoinositides (PIs) play an essential role in mediating key signaling pathways on biological membranes. Hepatitis C virus (HCV) replicates its RNA genome by establishing a viral replication complex (RC) on host cell membranes. Recently, an increasing body of literature reported that not only PIs themselves but also several PIs-specific kinases are required for efficient replication of HCV RNA genome. Especially, PI 4-kinases type III alpha, beta as well as their enzymatic products including phosphatidylinositol 4-phosphate (PI(4)P) and phosphatidylinositol 4,5-bisphosphate (PI(4,5)P(2)) are consistently identified to be host factors essential for HCV replication. In this article, the current state of our knowledge of PIs and PIs-specific kinases together with their roles in modulating HCV replication is reviewed. The effects of various PIs-specific kinases inhibitors on HCV replication are also highlighted, proposing them as promising candidate targets to which a new class of anti-HCV therapeutics can be envisaged.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • 1-Phosphatidylinositol 4-Kinase / antagonists & inhibitors
  • 1-Phosphatidylinositol 4-Kinase / metabolism*
  • Enzyme Inhibitors / pharmacology
  • Genome, Viral / drug effects
  • Hepacivirus / genetics
  • Hepacivirus / physiology*
  • Hepatitis C / drug therapy
  • Hepatitis C / enzymology
  • Hepatitis C / metabolism
  • Hepatitis C / virology*
  • Humans
  • Phosphatidylinositols / metabolism*
  • RNA, Viral / genetics*
  • Virus Replication / drug effects
  • Virus Replication / physiology*

Substances

  • Enzyme Inhibitors
  • Phosphatidylinositols
  • RNA, Viral
  • 1-Phosphatidylinositol 4-Kinase