Mitochondrial Stress Signaling Promotes Cellular Adaptations

Mitochondrial dysfunction has been implicated in the aetiology of many complex diseases, as well as the ageing process. Much of the research on mitochondrial dysfunction has focused on how mitochondrial damage may potentiate pathological phenotypes. The purpose of this review is to draw attention to...

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Main Authors: Jayne Alexandra Barbour, Nigel Turner
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:International Journal of Cell Biology
Online Access:http://dx.doi.org/10.1155/2014/156020
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author Jayne Alexandra Barbour
Nigel Turner
author_facet Jayne Alexandra Barbour
Nigel Turner
author_sort Jayne Alexandra Barbour
collection DOAJ
description Mitochondrial dysfunction has been implicated in the aetiology of many complex diseases, as well as the ageing process. Much of the research on mitochondrial dysfunction has focused on how mitochondrial damage may potentiate pathological phenotypes. The purpose of this review is to draw attention to the less well-studied mechanisms by which the cell adapts to mitochondrial perturbations. This involves communication of stress to the cell and successful induction of quality control responses, which include mitophagy, unfolded protein response, upregulation of antioxidant and DNA repair enzymes, morphological changes, and if all else fails apoptosis. The mitochondrion is an inherently stressful environment and we speculate that dysregulation of stress signaling or an inability to switch on these adaptations during times of mitochondrial stress may underpin mitochondrial dysfunction and hence amount to pathological states over time.
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spelling doaj-art-2c0c24fc9bab47769ad876ed94fcd1442025-02-03T06:00:05ZengWileyInternational Journal of Cell Biology1687-88761687-88842014-01-01201410.1155/2014/156020156020Mitochondrial Stress Signaling Promotes Cellular AdaptationsJayne Alexandra Barbour0Nigel Turner1Department of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, AustraliaDepartment of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, AustraliaMitochondrial dysfunction has been implicated in the aetiology of many complex diseases, as well as the ageing process. Much of the research on mitochondrial dysfunction has focused on how mitochondrial damage may potentiate pathological phenotypes. The purpose of this review is to draw attention to the less well-studied mechanisms by which the cell adapts to mitochondrial perturbations. This involves communication of stress to the cell and successful induction of quality control responses, which include mitophagy, unfolded protein response, upregulation of antioxidant and DNA repair enzymes, morphological changes, and if all else fails apoptosis. The mitochondrion is an inherently stressful environment and we speculate that dysregulation of stress signaling or an inability to switch on these adaptations during times of mitochondrial stress may underpin mitochondrial dysfunction and hence amount to pathological states over time.http://dx.doi.org/10.1155/2014/156020
spellingShingle Jayne Alexandra Barbour
Nigel Turner
Mitochondrial Stress Signaling Promotes Cellular Adaptations
International Journal of Cell Biology
title Mitochondrial Stress Signaling Promotes Cellular Adaptations
title_full Mitochondrial Stress Signaling Promotes Cellular Adaptations
title_fullStr Mitochondrial Stress Signaling Promotes Cellular Adaptations
title_full_unstemmed Mitochondrial Stress Signaling Promotes Cellular Adaptations
title_short Mitochondrial Stress Signaling Promotes Cellular Adaptations
title_sort mitochondrial stress signaling promotes cellular adaptations
url http://dx.doi.org/10.1155/2014/156020
work_keys_str_mv AT jaynealexandrabarbour mitochondrialstresssignalingpromotescellularadaptations
AT nigelturner mitochondrialstresssignalingpromotescellularadaptations