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© Research
Publication : Immunological reviews

The impact of macroautophagy on CD8(+) T-cell-mediated antiviral immunity

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Immunological reviews - 01 Sep 2013

Perot BP, Ingersoll MA, Albert ML

Link to Pubmed [PMID] – 23947346

Immunol. Rev. 2013 Sep;255(1):40-56

Macroautophagy is a catabolic recycling pathway, which can be induced by various stress stimuli. Viruses are able to manipulate autophagy in the cells that they infect. The impact of autophagy on the innate immune response to viruses and its stimulatory role in antigen presentation to CD4(+) T cells are well documented. Herein, we present the impact of autophagy on the activation of cytotoxic T lymphocyte (CTL)-mediated antiviral immune responses, which are required for the eradication or control of multiple viruses. We first discuss the general mechanisms by which viruses can either induce or block autophagy in cells. We then explore the cross-talk between autophagy and innate immune processes, which are both first line defenses against viruses; and constitute crucial steps for the initiation of potent adaptive immune responses. We describe the impact of autophagy on the presentation of viral peptide antigens on class I major histocompatibility complex (MHC I), a prerequisite for the priming of CTL responses. In sum, our review highlights the interplay between viruses and three integrated host response pathways – autophagy, innate and adaptive immunity – providing a framework for future mechanistic and pathogenesis-based research.

https://www.ncbi.nlm.nih.gov/pubmed/23947346