Cited by 820Mitochondrial Function and PathologyCell death mechanisms and regulationSignaling Pathways in Disease

Cyclophilin D is a component of mitochondrial permeability transition and mediates neuronal cell death after focal cerebral ischemia

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Schinzel, Anna C., Takeuchi, Osamu, Huang, Zhihong, Fisher, Jill K., Zhou, Zhipeng, Rubens, Jeffery, Hetz, Claudio, Danial, Nika N. +2 more·2005·Proceedings of the National Academy of Sciences

Abstract

Mitochondrial permeability transition (PT) is a phenomenon induced by high levels of matrix calcium and is characterized by the opening of the PT pore (PTP). Activation of the PTP results in loss of mitochondrial membrane potential, expansion of the matrix, and rupture of the mitochondrial outer membrane. Consequently, PT has been implicated in both apoptotic and necrotic cell death. Cyclophilin D (CypD) appears to be a critical component of the PTP. To investigate the role of CypD in cell death, we created a CypD-deficient mouse. In vitro , CypD-deficient mitochondria showed an increased capacity to retain calcium and were no longer susceptible to PT induced by the addition of calcium. CypD-deficient primary mouse embryonic fibroblasts (MEFs) were as susceptible to classical apoptotic stimuli as the WT, suggesting that CypD is not a central component of cell death in response to these specific death stimuli. However, CypD-deficient MEFs were significantly less susceptible than their WT counterparts to cell death induced by hydrogen peroxide, implicating CypD in oxidative stress-induced cell death. Importantly, CypD-deficient mice displayed a dramatic reduction in brain infarct size after acute middle cerebral artery occlusion and reperfusion, strongly supporting an essential role for CypD in an ischemic injury model in which calcium overload and oxidative stress have been implicated.

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  1. [37]Crompton, M. (1999) Biochem. J. 341**,** Part 2, 233–249. [[PMC free article](/articles/PMC1220352/)] [[PubMed](https://pubmed.ncbi.nlm.nih.gov/10393078/)] [[Google Scholar](https://scholar.google.com/scholar_lookup?journal=Biochem.%20J.&volume=341&publication_year=1999&pages=233&pmid=10393078&)]
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Authors
Schinzel, A. C., Takeuchi, O., Huang, Z., Fisher, J. K., Zhou, Z., Rubens, J., Hetz, C., Danial, N. N., Moskowitz, M. A., & Korsmeyer, S. J.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Proceedings of the National Academy of Sciences
Published
2005-08-15
Volume
102
Issue
34
Pages
12005-12010
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2088629175
Cited by
820
References
55
Citations by year
2026: 15 · 2025: 10 · 2024: 14 · 2023: 21 · 2022: 31 · 2021: 36 · 2020: 34 · 2019: 33 · 2018: 30 · 2017: 42 · 2016: 45 · 2015: 50 · 2014: 63 · 2013: 41 · 2012: 53
FWCI
15.44
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • Damon Runyon Cancer Research Foundation
  • Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
  • National Institutes of Health
  • National Cancer Institute (R01CA050239, CA50239, R37CA050239)
  • National Institute of Neurological Disorders and Stroke (R01NS037141, NS10828, F32NS010828, P50NS010828, P01NS010828, NS 37141)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
cyclophilin D, mitochondrial permeability transition, mitochondrial permeability transition pore, focal cerebral ischemia, neuronal cell death, oxidative stress-induced cell death, hydrogen peroxide, middle cerebral artery occlusion, ischemia-reperfusion injury, brain infarct size, apoptosis, necrosis
MeSH terms
Peptidyl-Prolyl Isomerase F, Animals, Calcium, Brain Ischemia, Hydrogen Peroxide, Intracellular Membranes, Mice, Transgenic, Mitochondria, Mitochondrial Swelling, Neurons, Permeability, Spectrophotometry, Apoptosis, Cyclophilins, Microscopy, Electron, Transmission, Voltage-Dependent Anion Channels, Mice

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