Macrophage Autophagy and Bacterial Infections

Autophagy is a well-conserved lysosomal degradation pathway that plays key roles in bacterial infections. One of the most studied is probably xenophagy, the selective capture and degradation of intracellular bacteria by lysosomes. However, the impact of autophagy goes beyond xenophagy and involves i...

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Main Authors: Aïcha Bah, Isabelle Vergne
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-11-01
Series:Frontiers in Immunology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fimmu.2017.01483/full
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author Aïcha Bah
Isabelle Vergne
author_facet Aïcha Bah
Isabelle Vergne
author_sort Aïcha Bah
collection DOAJ
description Autophagy is a well-conserved lysosomal degradation pathway that plays key roles in bacterial infections. One of the most studied is probably xenophagy, the selective capture and degradation of intracellular bacteria by lysosomes. However, the impact of autophagy goes beyond xenophagy and involves intensive cross-talks with other host defense mechanisms. In addition, autophagy machinery can have non-canonical functions such as LC3-associated phagocytosis. In this review, we intend to summarize the current knowledge on the many functions of autophagy proteins in cell defenses with a focus on bacteria–macrophage interaction. We also present the strategies developed by pathogens to evade or to exploit this machinery in order to establish a successful infection. Finally, we discuss the opportunities and challenges of autophagy manipulation in improving therapeutics and vaccines against bacterial pathogens.
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spelling doaj.art-b5921bb35ce741d0bd730d1022f845b42022-12-22T02:15:47ZengFrontiers Media S.A.Frontiers in Immunology1664-32242017-11-01810.3389/fimmu.2017.01483310909Macrophage Autophagy and Bacterial InfectionsAïcha Bah0Isabelle Vergne1Institut de Pharmacologie et de Biologie Structurale, UMR 5089 CNRS—Université de Toulouse, Toulouse, FranceInstitut de Pharmacologie et de Biologie Structurale, UMR 5089 CNRS—Université de Toulouse, Toulouse, FranceAutophagy is a well-conserved lysosomal degradation pathway that plays key roles in bacterial infections. One of the most studied is probably xenophagy, the selective capture and degradation of intracellular bacteria by lysosomes. However, the impact of autophagy goes beyond xenophagy and involves intensive cross-talks with other host defense mechanisms. In addition, autophagy machinery can have non-canonical functions such as LC3-associated phagocytosis. In this review, we intend to summarize the current knowledge on the many functions of autophagy proteins in cell defenses with a focus on bacteria–macrophage interaction. We also present the strategies developed by pathogens to evade or to exploit this machinery in order to establish a successful infection. Finally, we discuss the opportunities and challenges of autophagy manipulation in improving therapeutics and vaccines against bacterial pathogens.http://journal.frontiersin.org/article/10.3389/fimmu.2017.01483/fullautophagymacrophagebacteriapathogenphagocytosisxenophagy
spellingShingle Aïcha Bah
Isabelle Vergne
Macrophage Autophagy and Bacterial Infections
Frontiers in Immunology
autophagy
macrophage
bacteria
pathogen
phagocytosis
xenophagy
title Macrophage Autophagy and Bacterial Infections
title_full Macrophage Autophagy and Bacterial Infections
title_fullStr Macrophage Autophagy and Bacterial Infections
title_full_unstemmed Macrophage Autophagy and Bacterial Infections
title_short Macrophage Autophagy and Bacterial Infections
title_sort macrophage autophagy and bacterial infections
topic autophagy
macrophage
bacteria
pathogen
phagocytosis
xenophagy
url http://journal.frontiersin.org/article/10.3389/fimmu.2017.01483/full
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