Regulation of apoptosis and replicative senescence in CD8+ T cell following acute viral infection

Apoptosis. 2000 Nov;5(5):431-4. doi: 10.1023/a:1009672331030.

Abstract

Viral infections are characterised by a large expansion of CD8+ effector T cells. Once generated, these T cells must be cleared and homeostasis re-established. In this review we describe two mechanisms, apoptosis and replicative senescence which are thought to play a vital role in this process. Apoptosis clears the unwanted T cells at the end of an immune response whereas replicative senescence prevents unlimited expansion of T cells. For successful memory to be produced T cells must avoid apoptosis and avoid replicative senescence.

Publication types

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

MeSH terms

  • Animals
  • Apoptosis / physiology*
  • Cell Division / physiology
  • Cellular Senescence / physiology
  • Humans
  • T-Lymphocytes, Regulatory / cytology*
  • T-Lymphocytes, Regulatory / immunology
  • T-Lymphocytes, Regulatory / virology
  • Virus Diseases / immunology
  • Virus Diseases / pathology*