Cell cycle checkpoints and pathogenesis of HIV-1 infection: a brief overview

J Basic Clin Physiol Pharmacol. 2015 Jan;26(1):1-11. doi: 10.1515/jbcpp-2014-0018.

Abstract

To understand HIV pathogenesis or development is no simple undertaking and neither is the cell cycle which is highly complex that requires the coordination of multiple events and machinery. It is interesting that these two processes are interrelated, intersect and interact as HIV-1 infection results in cell cycle arrest at the G2 phase which is accompanied by massive CD4+ T cell death. For its own benefit, in an impressive manner and with the overabundance of tactics, HIV maneuvers DNA damage responses and cell cycle check points for viral replication at different stages from infection, to latency and to pathogenesis. Although the cell cycle is the most critical aspect involved in both viral and cellular replication, in this review, our main focus is on recent developments, including our own observations in the field of cell cycle proteins, checkpoints and strategies utilized by the viruses to manipulate these pathways to promote their own replication and survival. We will also discuss the emerging concept of targeting the replication initiation machinery for HIV therapy.

Publication types

  • Research Support, N.I.H., Extramural
  • Review

MeSH terms

  • CD4-Positive T-Lymphocytes / pathology
  • Cell Cycle Checkpoints*
  • DNA Damage
  • HIV Infections / drug therapy
  • HIV Infections / physiopathology*
  • HIV Infections / virology
  • HIV-1 / pathogenicity*
  • Humans
  • Virus Replication