Cited by 384Mitochondrial Function and PathologySignaling Pathways in DiseaseCardiac Fibrosis and Remodeling

Cyclophilin D controls mitochondrial pore–dependent Ca2+ exchange, metabolic flexibility, and propensity for heart failure in mice

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Elrod, John W., Wong, Renee, Mishra, Shikha, Vagnozzi, Ronald J., Sakthievel, Bhuvana, Goonasekera, Sanjeewa A., Karch, Jason, Gabel, Scott +5 more·2010·Journal of Clinical Investigation

Abstract

Cyclophilin D (which is encoded by the Ppif gene) is a mitochondrial matrix peptidyl-prolyl isomerase known to modulate opening of the mitochondrial permeability transition pore (MPTP). Apart from regulating necrotic cell death, the physiologic function of the MPTP is largely unknown. Here we have shown that Ppif(-/-) mice exhibit substantially greater cardiac hypertrophy, fibrosis, and reduction in myocardial function in response to pressure overload stimulation than control mice. In addition, Ppif(-/-) mice showed greater hypertrophy and lung edema as well as reduced survival in response to sustained exercise stimulation. Cardiomyocyte-specific transgene expression of cyclophilin D in Ppif(-/-) mice rescued the enhanced hypertrophy, reduction in cardiac function, and rapid onset of heart failure following pressure overload stimulation. Mechanistically, the maladaptive phenotype in the hearts of Ppif(-/-) mice was associated with an alteration in MPTP-mediated Ca(2+) efflux resulting in elevated levels of mitochondrial matrix Ca(2+) and enhanced activation of Ca(2+)-dependent dehydrogenases. Elevated matrix Ca(2+) led to increased glucose oxidation relative to fatty acids, thereby limiting the metabolic flexibility of the heart that is critically involved in compensation during stress. These findings suggest that the MPTP maintains homeostatic mitochondrial Ca(2+) levels to match metabolism with alterations in myocardial workload, thereby suggesting a physiologic function for the MPTP.

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  • Lack of cyclophilin D in cardiac cells may be detrimental under certain conditions by compromising Ca2+ handling and decreasing mitochondrial Ca2+ efflux after alterations in myocardial workload.

    “however, lack of cyclophilin D in cardiac cells may be detrimental under certain conditions, as this deficiency compromises Ca2+ handling in mitochondria, decreasing the ability of mitochondria to efflux Ca2+ after alterations in myocardial workload due to lack of beneficial (perhaps transient) MPT pore formation (123).”

    From Redox regulation of mitochondrial function (2012) · cites this paper as [123]

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  1. Nagai T, Sawano A, Park ES, Miyawaki A. Circu- larly permuted green fluorescent proteins engi- neered to sense Ca2+. Proc Natl Acad Sci U S A. 2001; 98(6):3197-3202.

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Authors
Elrod, J. W., Wong, R., Mishra, S., Vagnozzi, R. J., Sakthievel, B., Goonasekera, S. A., Karch, J., Gabel, S., Farber, J., Force, T., Heller Brown, J., Murphy, E., & Molkentin, J. D.
Affiliations
  • Cincinnati Children's Hospital Medical Center (US)
  • National Institutes of Health (US)
  • University of California San Diego (US)
  • Thomas Jefferson University (US)
Corresponding author
Molkentin, Jeffery D.
Venue
Journal of Clinical Investigation
Published
2010-10-01
Volume
120
Issue
10
Pages
3680-3687
ISSN
0021-9738 (ISSN-L)
OpenAlex
W1966536813
Cited by
384
References
47
Citations by year
2026: 5 · 2025: 11 · 2024: 13 · 2023: 21 · 2022: 20 · 2021: 29 · 2020: 29 · 2019: 23 · 2018: 24 · 2017: 25 · 2016: 34 · 2015: 36 · 2014: 32 · 2013: 21 · 2012: 31
FWCI
10.68
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Howard Hughes Medical Institute
  • Fondation Leducq
  • National Institutes of Health (HL80101)
  • National Heart, Lung, and Blood Institute (HL-62927, HL80101, R01HL081104, P01HL080101, F32HL092737, R37HL028143, HL81104, R01HL062927)
  • National Institute of General Medical Sciences (T32GM007752)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
Keywords
cyclophilin D, mitochondrial permeability transition pore, mitochondrial calcium, cardiac hypertrophy, heart failure, pressure overload, metabolic flexibility, glucose oxidation, fatty acid oxidation, cardiomyocyte-specific overexpression, myocardial fibrosis, pulmonary edema
MeSH terms
Peptidyl-Prolyl Isomerase F, Mitochondrial Permeability Transition Pore, Aging, Animals, Calcium, Cardiomegaly, Heart Failure, Mice, Transgenic, Mitochondria, Heart, Myocardial Contraction, Cyclophilins, Mitochondrial Membrane Transport Proteins, Mice

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