Cited by 275Mitochondrial Function and PathologyGenetics, Aging, and Longevity in Model OrganismsCell death mechanisms and regulation

The path from mitochondrial ROS to aging runs through the mitochondrial permeability transition pore

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Rottenberg, Hagai, Hoek, Jan B.·2017·Aging Cell

Abstract

Excessive production of mitochondrial reactive oxygen species (mROS) is strongly associated with mitochondrial and cellular oxidative damage, aging, and degenerative diseases. However, mROS also induces pathways of protection of mitochondria that slow aging, inhibit cell death, and increase lifespan. Recent studies show that the activation of the mitochondrial permeability transition pore (mPTP), which is triggered by mROS and mitochondrial calcium overloading, is enhanced in aged animals and humans and in aging-related degenerative diseases. mPTP opening initiates further production and release of mROS that damage both mitochondrial and nuclear DNA, proteins, and phospholipids, and also releases matrix NAD that is hydrolyzed in the intermembrane space, thus contributing to the depletion of cellular NAD that accelerates aging. Oxidative damage to calcium transporters leads to calcium overload and more frequent opening of mPTP. Because aging enhances the opening of the mPTP and mPTP opening accelerates aging, we suggest that mPTP opening drives the progression of aging. Activation of the mPTP is regulated, directly and indirectly, not only by the mitochondrial protection pathways that are induced by mROS, but also by pro-apoptotic signals that are induced by DNA damage. We suggest that the integration of these contrasting signals by the mPTP largely determines the rate of cell aging and the initiation of cell death, and thus animal lifespan. The suggestion that the control of mPTP activation is critical for the progression of aging can explain the conflicting and confusing evidence regarding the beneficial and deleterious effects of mROS on health and lifespan.

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Crossref · 10.1111/acel.12650

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  • mPTP activity is critical for the progression of aging.

    “The fact that the opening of mPTP further enhances the production of damaging mROS and leads to the cellular depletion of NAD+ led us to suggest that mPTP activity is critical for the progression of aging [14].”

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  1. Zhao Y, Wang ZB, Xu JX (2003) Effect of cytochrome c on the generation and elimination of O2*‐ and H2O2 in mitochondria. J. Biol. Chem. 278, 2356– 2360. 12435729

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Authors
Rottenberg, H., & Hoek, J. B.
Affiliations
  • New Hope Biomedical R&D 23 W. Bridge Street New Hope PA 18038 USA
  • Thomas Jefferson University (US)
Corresponding author
Rottenberg, Hagai
Venue
Aging Cell
Publisher
Wiley
Published
2017-07-31
Volume
16
Issue
5
Pages
943-955
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2740737691
Cited by
275
References
217
Citations by year
2026: 38 · 2025: 29 · 2024: 33 · 2023: 41 · 2022: 32 · 2021: 29 · 2020: 37 · 2019: 13 · 2018: 21 · 2017: 2
FWCI
1.87
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (AA018873)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
mitochondrial reactive oxygen species, mitochondrial permeability transition pore, aging, mitochondrial calcium overload, NAD+ depletion, mitochondrial DNA damage, oxidative damage, calcium transporters, apoptosis, lifespan, degenerative diseases
MeSH terms
Mitochondrial Permeability Transition Pore, Peptidyl-Prolyl Isomerase D, Aging, Animals, Calcium, Gene Expression Regulation, Humans, Mitochondria, NAD, Oxidation-Reduction, Reperfusion Injury, Reactive Oxygen Species, Ischemic Preconditioning, Neurodegenerative Diseases, Cyclophilins, Caloric Restriction, Mitochondrial Membrane Transport Proteins

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