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The macroautophagy machinery in endo- and exocytosis


Münz, Christian (2017). The macroautophagy machinery in endo- and exocytosis. Journal of Molecular Biology, 429(4):473-485.

Abstract

Macroautophagy and the autophagy-related gene (Atg) machinery execute during their canonical function cytoplasmic constituent degradation in lysosomes. This canonical function contributes to pathogen restriction and intracellular antigen presentation on major histocompatibility complex (MHC) class II molecules to CD4(+) T cells. However, in the recent years, it has become clear that the Atg machinery is also used for other membrane transport functions, including endocytosis and exocytosis. This review describes these non-canonical functions in the context of antigen presentation on MHC class I and II molecules to CD8(+) and CD4(+) T cells, respectively, and during viral replication. Future studies will need to address how the Atg machinery is modified for these non-canonical functions, gets recruited to the respective sites of membrane modification, and recruits alternative Atg interactors to execute endo- and exocytosis instead of macroautophagy.

Abstract

Macroautophagy and the autophagy-related gene (Atg) machinery execute during their canonical function cytoplasmic constituent degradation in lysosomes. This canonical function contributes to pathogen restriction and intracellular antigen presentation on major histocompatibility complex (MHC) class II molecules to CD4(+) T cells. However, in the recent years, it has become clear that the Atg machinery is also used for other membrane transport functions, including endocytosis and exocytosis. This review describes these non-canonical functions in the context of antigen presentation on MHC class I and II molecules to CD8(+) and CD4(+) T cells, respectively, and during viral replication. Future studies will need to address how the Atg machinery is modified for these non-canonical functions, gets recruited to the respective sites of membrane modification, and recruits alternative Atg interactors to execute endo- and exocytosis instead of macroautophagy.

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Additional indexing

Item Type:Journal Article, refereed, further contribution
Communities & Collections:04 Faculty of Medicine > Institute of Experimental Immunology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Uncontrolled Keywords:Molecular Biology
Language:English
Date:2017
Deposited On:16 Jan 2017 09:16
Last Modified:19 Aug 2018 06:46
Publisher:Elsevier
ISSN:0022-2836
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.jmb.2016.11.028
PubMed ID:27932293
Project Information:
  • : FunderSNSF
  • : Grant ID310030_162560
  • : Project TitleRole of autophagy proteins in endocytosis and exocytosis
  • : FunderSNSF
  • : Grant IDCRSII3_160708
  • : Project TitleIdentify new molecular mechanisms and cellular precursors to augment T cell function in chronic infections and tumors

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