ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium Transfer

It is commonly believed that sustained elevations in the mitochondrial matrix Ca2+ concentration are a major feature of the intracellular cascade of lethal events during cerebral ischemia. The physical association between the endoplasmic reticulum (ER) and mitochondria, known as the mitochondria-ass...

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Main Authors: Yi-Bing Ouyang, Rona G. Giffard
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Cell Biology
Online Access:http://dx.doi.org/10.1155/2012/493934
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author Yi-Bing Ouyang
Rona G. Giffard
author_facet Yi-Bing Ouyang
Rona G. Giffard
author_sort Yi-Bing Ouyang
collection DOAJ
description It is commonly believed that sustained elevations in the mitochondrial matrix Ca2+ concentration are a major feature of the intracellular cascade of lethal events during cerebral ischemia. The physical association between the endoplasmic reticulum (ER) and mitochondria, known as the mitochondria-associated ER membrane (MAM), enables highly efficient transmission of Ca2+ from the ER to mitochondria under both physiological and pathological conditions. Molecular chaperones are well known for their protective effects during cerebral ischemia. It has been demonstrated recently that many molecular chaperones coexist with MAM and regulate the MAM and thus Ca2+ concentration inside mitochondria. Here, we review recent research on cerebral ischemia and MAM, with a focus on molecular chaperones and ER-mitochondrial calcium transfer.
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spelling doaj-art-ebee1757752f4f958033d2b8ccb20f872025-02-03T06:12:34ZengWileyInternational Journal of Cell Biology1687-88761687-88842012-01-01201210.1155/2012/493934493934ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium TransferYi-Bing Ouyang0Rona G. Giffard1Department of Anesthesia, Stanford University School of Medicine, Stanford, CA 94305-5117, USADepartment of Anesthesia, Stanford University School of Medicine, Stanford, CA 94305-5117, USAIt is commonly believed that sustained elevations in the mitochondrial matrix Ca2+ concentration are a major feature of the intracellular cascade of lethal events during cerebral ischemia. The physical association between the endoplasmic reticulum (ER) and mitochondria, known as the mitochondria-associated ER membrane (MAM), enables highly efficient transmission of Ca2+ from the ER to mitochondria under both physiological and pathological conditions. Molecular chaperones are well known for their protective effects during cerebral ischemia. It has been demonstrated recently that many molecular chaperones coexist with MAM and regulate the MAM and thus Ca2+ concentration inside mitochondria. Here, we review recent research on cerebral ischemia and MAM, with a focus on molecular chaperones and ER-mitochondrial calcium transfer.http://dx.doi.org/10.1155/2012/493934
spellingShingle Yi-Bing Ouyang
Rona G. Giffard
ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium Transfer
International Journal of Cell Biology
title ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium Transfer
title_full ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium Transfer
title_fullStr ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium Transfer
title_full_unstemmed ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium Transfer
title_short ER-Mitochondria Crosstalk during Cerebral Ischemia: Molecular Chaperones and ER-Mitochondrial Calcium Transfer
title_sort er mitochondria crosstalk during cerebral ischemia molecular chaperones and er mitochondrial calcium transfer
url http://dx.doi.org/10.1155/2012/493934
work_keys_str_mv AT yibingouyang ermitochondriacrosstalkduringcerebralischemiamolecularchaperonesandermitochondrialcalciumtransfer
AT ronaggiffard ermitochondriacrosstalkduringcerebralischemiamolecularchaperonesandermitochondrialcalciumtransfer