Modulation of Host Cell Signaling Pathways by Varicella-Zoster Virus

Curr Top Microbiol Immunol. 2023:438:75-84. doi: 10.1007/82_2021_251.

Abstract

Host-pathogen interactions involve complex inside-out and outside-in signal transmission through critical cellular networks that dictate disease outcomes. The phosphoinositide 3-kinase (PI3K)/Akt pathway is a pivotal junction that regulates several cell functions, and phospho-Akt (pAkt) is often found to be constitutively active in cancer cells, similar to phospho-STAT3. In this chapter, we discuss the regulation of PI3K/Akt pathway in VZV infected cells and of other pathways including p53 which, unlike pAkt and pSTAT3, directs cells towards apoptosis. The fine spatio-temporal balance of activation of pro- and anti-apoptotic factors during VZV infection likely provides an optimum environment for the virus to replicate and cause disease in the human host.

Keywords: VZV PKR; VZV signaling; VZV-PI3K/Akt.

MeSH terms

  • Herpesvirus 3, Human* / metabolism
  • Host-Pathogen Interactions
  • Humans
  • Phosphatidylinositol 3-Kinases* / metabolism
  • Proto-Oncogene Proteins c-akt / metabolism
  • Signal Transduction

Substances

  • Phosphatidylinositol 3-Kinases
  • Proto-Oncogene Proteins c-akt