Mitochondria: Regulators of Cell Death and Survival

The past 5 years has seen an intense surge in research devoted toward understanding the critical role of mitochondria in the regulation of cell death. Apoptosis can be initiated by a wide array of stimuli, inducing multiple signaling pathways that, for the most part, converge at the mitochondrion. A...

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Main Authors: David J. Granville, Roberta A. Gottlieb
Format: Article
Language:English
Published: Wiley 2002-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1100/tsw.2002.809
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author David J. Granville
Roberta A. Gottlieb
author_facet David J. Granville
Roberta A. Gottlieb
author_sort David J. Granville
collection DOAJ
description The past 5 years has seen an intense surge in research devoted toward understanding the critical role of mitochondria in the regulation of cell death. Apoptosis can be initiated by a wide array of stimuli, inducing multiple signaling pathways that, for the most part, converge at the mitochondrion. Although classically considered the powerhouses of the cell, it is now understood that mitochondria are also “gatekeepers” that ultimately determine the fate of the cell. The mitochondrial decision as to whether a cell lives or dies is complex, involving protein-protein interactions, ionic changes, reactive oxygen species, and other mechanisms that require further elucidation. Once the death process is initiated, mitochondria undergo conformational changes, resulting in the release of cytochrome c (cyt c), caspases, endonucleases, and other factors leading to the onset and execution of apoptosis. The present review attempts to outline the complex milieu of events regulating the mitochondrial commitment to and processes involved in the implementation of the executioner phase of apoptotic cell death.
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spelling doaj-art-4844f131a5fd48e4ba2001c5eb3c8eb22025-08-20T03:36:01ZengWileyThe Scientific World Journal1537-744X2002-01-0121569157810.1100/tsw.2002.809Mitochondria: Regulators of Cell Death and SurvivalDavid J. Granville0Roberta A. Gottlieb1The Scripps Research Institute, MEM-220, 10550 North Torrey Pines Road, La Jolla, CA 92037, USAThe Scripps Research Institute, MEM-220, 10550 North Torrey Pines Road, La Jolla, CA 92037, USAThe past 5 years has seen an intense surge in research devoted toward understanding the critical role of mitochondria in the regulation of cell death. Apoptosis can be initiated by a wide array of stimuli, inducing multiple signaling pathways that, for the most part, converge at the mitochondrion. Although classically considered the powerhouses of the cell, it is now understood that mitochondria are also “gatekeepers” that ultimately determine the fate of the cell. The mitochondrial decision as to whether a cell lives or dies is complex, involving protein-protein interactions, ionic changes, reactive oxygen species, and other mechanisms that require further elucidation. Once the death process is initiated, mitochondria undergo conformational changes, resulting in the release of cytochrome c (cyt c), caspases, endonucleases, and other factors leading to the onset and execution of apoptosis. The present review attempts to outline the complex milieu of events regulating the mitochondrial commitment to and processes involved in the implementation of the executioner phase of apoptotic cell death.http://dx.doi.org/10.1100/tsw.2002.809
spellingShingle David J. Granville
Roberta A. Gottlieb
Mitochondria: Regulators of Cell Death and Survival
The Scientific World Journal
title Mitochondria: Regulators of Cell Death and Survival
title_full Mitochondria: Regulators of Cell Death and Survival
title_fullStr Mitochondria: Regulators of Cell Death and Survival
title_full_unstemmed Mitochondria: Regulators of Cell Death and Survival
title_short Mitochondria: Regulators of Cell Death and Survival
title_sort mitochondria regulators of cell death and survival
url http://dx.doi.org/10.1100/tsw.2002.809
work_keys_str_mv AT davidjgranville mitochondriaregulatorsofcelldeathandsurvival
AT robertaagottlieb mitochondriaregulatorsofcelldeathandsurvival