Host Cell Autophagy in Immune Response to Zoonotic Infections

Autophagy is a fundamental homeostatic process in which cytoplasmic targets are sequestered within double-membraned autophagosomes and subsequently delivered to lysosomes for degradation. Accumulating evidence supports the pivotal role of autophagy in host defense against intracellular pathogens imp...

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Main Authors: Panagiotis Skendros, Ioannis Mitroulis
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Clinical and Developmental Immunology
Online Access:http://dx.doi.org/10.1155/2012/910525
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author Panagiotis Skendros
Ioannis Mitroulis
author_facet Panagiotis Skendros
Ioannis Mitroulis
author_sort Panagiotis Skendros
collection DOAJ
description Autophagy is a fundamental homeostatic process in which cytoplasmic targets are sequestered within double-membraned autophagosomes and subsequently delivered to lysosomes for degradation. Accumulating evidence supports the pivotal role of autophagy in host defense against intracellular pathogens implicating both innate and adaptive immunity. Many of these pathogens cause common zoonotic infections worldwide. The induction of the autophagic machinery by innate immune receptors signaling, such as TLRs, NOD1/2, and p62/SQSTM1 in antigen-presenting cells results in inhibition of survival and elimination of invading pathogens. Furthermore, Th1 cytokines induce the autophagic process, whereas autophagy also contributes to antigen processing and MHC class II presentation, linking innate to adaptive immunity. However, several pathogens have developed strategies to avoid autophagy or exploit autophagic machinery to their advantage. This paper focuses on the role of host cell autophagy in the regulation of immune response against intracellular pathogens, emphasizing on selected bacterial and protozoan zoonoses.
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spelling doaj-art-68808e5c10cc433aa1bb181e15be8d4f2025-02-03T01:21:51ZengWileyClinical and Developmental Immunology1740-25221740-25302012-01-01201210.1155/2012/910525910525Host Cell Autophagy in Immune Response to Zoonotic InfectionsPanagiotis Skendros0Ioannis Mitroulis1First Department of Internal Medicine, Democritus University of Thrace, Alexandroupolis, GreeceFirst Department of Internal Medicine, Democritus University of Thrace, Alexandroupolis, GreeceAutophagy is a fundamental homeostatic process in which cytoplasmic targets are sequestered within double-membraned autophagosomes and subsequently delivered to lysosomes for degradation. Accumulating evidence supports the pivotal role of autophagy in host defense against intracellular pathogens implicating both innate and adaptive immunity. Many of these pathogens cause common zoonotic infections worldwide. The induction of the autophagic machinery by innate immune receptors signaling, such as TLRs, NOD1/2, and p62/SQSTM1 in antigen-presenting cells results in inhibition of survival and elimination of invading pathogens. Furthermore, Th1 cytokines induce the autophagic process, whereas autophagy also contributes to antigen processing and MHC class II presentation, linking innate to adaptive immunity. However, several pathogens have developed strategies to avoid autophagy or exploit autophagic machinery to their advantage. This paper focuses on the role of host cell autophagy in the regulation of immune response against intracellular pathogens, emphasizing on selected bacterial and protozoan zoonoses.http://dx.doi.org/10.1155/2012/910525
spellingShingle Panagiotis Skendros
Ioannis Mitroulis
Host Cell Autophagy in Immune Response to Zoonotic Infections
Clinical and Developmental Immunology
title Host Cell Autophagy in Immune Response to Zoonotic Infections
title_full Host Cell Autophagy in Immune Response to Zoonotic Infections
title_fullStr Host Cell Autophagy in Immune Response to Zoonotic Infections
title_full_unstemmed Host Cell Autophagy in Immune Response to Zoonotic Infections
title_short Host Cell Autophagy in Immune Response to Zoonotic Infections
title_sort host cell autophagy in immune response to zoonotic infections
url http://dx.doi.org/10.1155/2012/910525
work_keys_str_mv AT panagiotisskendros hostcellautophagyinimmuneresponsetozoonoticinfections
AT ioannismitroulis hostcellautophagyinimmuneresponsetozoonoticinfections