Mitochondrial Dysfunction in Cancer

A mechanistic understanding of how mitochondrial dysfunction contributes to cell growth and tumorigenesis is emerging beyond Warburg as an area of research that is under-explored in terms of its significance for clinical management of cancer. Work discussed in this review focuses less on the Warburg...

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Main Authors: Michelle L Boland, Aparajita H Chourasia, Kay F Macleod
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-12-01
Series:Frontiers in Oncology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fonc.2013.00292/full
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author Michelle L Boland
Aparajita H Chourasia
Kay F Macleod
author_facet Michelle L Boland
Aparajita H Chourasia
Kay F Macleod
author_sort Michelle L Boland
collection DOAJ
description A mechanistic understanding of how mitochondrial dysfunction contributes to cell growth and tumorigenesis is emerging beyond Warburg as an area of research that is under-explored in terms of its significance for clinical management of cancer. Work discussed in this review focuses less on the Warburg effect and more on mitochondria and how dysfunctional mitochondria modulate cell cycle, gene expression, metabolism, cell viability and other more conventional aspects of cell growth and stress responses. There is increasing evidence that key oncogenes and tumor suppressors modulate mitochondrial dynamics through important signaling pathways and that mitochondrial mass and function vary between tumors and individuals but the sigificance of these events for cancer are not fully appreciated. We explore the interplay between key molecules involved in mitochondrial fission and fusion and in apoptosis, as well as in mitophagy, biogenesis and spatial dynamics and consider how these distinct mechanisms are coordinated in response to physiological stresses such as hypoxia and nutrient deprivation. Importantly, we examine how deregulation of these processes in cancer has knockon effects for cell proliferation and growth. Scientifically, there is also scope for defining what mitochondria dysfunction is and here we address the extent to which the functional consequences of such dysfunction can be determined and exploited for cancer diagnosis and treatment.
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spelling doaj.art-3ea29af0592d427b952f04d1c31e510b2022-12-22T01:57:13ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2013-12-01310.3389/fonc.2013.0029271821Mitochondrial Dysfunction in CancerMichelle L Boland0Aparajita H Chourasia1Kay F Macleod2The University of ChicagoThe University of ChicagoThe University of ChicagoA mechanistic understanding of how mitochondrial dysfunction contributes to cell growth and tumorigenesis is emerging beyond Warburg as an area of research that is under-explored in terms of its significance for clinical management of cancer. Work discussed in this review focuses less on the Warburg effect and more on mitochondria and how dysfunctional mitochondria modulate cell cycle, gene expression, metabolism, cell viability and other more conventional aspects of cell growth and stress responses. There is increasing evidence that key oncogenes and tumor suppressors modulate mitochondrial dynamics through important signaling pathways and that mitochondrial mass and function vary between tumors and individuals but the sigificance of these events for cancer are not fully appreciated. We explore the interplay between key molecules involved in mitochondrial fission and fusion and in apoptosis, as well as in mitophagy, biogenesis and spatial dynamics and consider how these distinct mechanisms are coordinated in response to physiological stresses such as hypoxia and nutrient deprivation. Importantly, we examine how deregulation of these processes in cancer has knockon effects for cell proliferation and growth. Scientifically, there is also scope for defining what mitochondria dysfunction is and here we address the extent to which the functional consequences of such dysfunction can be determined and exploited for cancer diagnosis and treatment.http://journal.frontiersin.org/Journal/10.3389/fonc.2013.00292/fullMitochondriaOxidative PhosphorylationCancer MetabolismmitophagyBiogenesiscell cycle control
spellingShingle Michelle L Boland
Aparajita H Chourasia
Kay F Macleod
Mitochondrial Dysfunction in Cancer
Frontiers in Oncology
Mitochondria
Oxidative Phosphorylation
Cancer Metabolism
mitophagy
Biogenesis
cell cycle control
title Mitochondrial Dysfunction in Cancer
title_full Mitochondrial Dysfunction in Cancer
title_fullStr Mitochondrial Dysfunction in Cancer
title_full_unstemmed Mitochondrial Dysfunction in Cancer
title_short Mitochondrial Dysfunction in Cancer
title_sort mitochondrial dysfunction in cancer
topic Mitochondria
Oxidative Phosphorylation
Cancer Metabolism
mitophagy
Biogenesis
cell cycle control
url http://journal.frontiersin.org/Journal/10.3389/fonc.2013.00292/full
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