Cited by 530Cell death mechanisms and regulationMitochondrial Function and PathologyAutophagy in Disease and Therapy

Mitochondrial Regulation of Cell Death

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Tait, S. W. G., Green, D. R.·2013·Cold Spring Harbor Perspectives in Biology

Abstract

Although required for life, paradoxically, mitochondria are often essential for initiating apoptotic cell death. Mitochondria regulate caspase activation and cell death through an event termed mitochondrial outer membrane permeabilization (MOMP); this leads to the release of various mitochondrial intermembrane space proteins that activate caspases, resulting in apoptosis. MOMP is often considered a point of no return because it typically leads to cell death, even in the absence of caspase activity. Because of this pivotal role in deciding cell fate, deregulation of MOMP impacts on many diseases and represents a fruitful site for therapeutic intervention. Here we discuss the mechanisms underlying mitochondrial permeabilization and how this key event leads to cell death through caspase-dependent and -independent means. We then proceed to explore how the release of mitochondrial proteins may be regulated following MOMP. Finally, we discuss mechanisms that enable cells sometimes to survive MOMP, allowing them, in essence, to return from the point of no return.

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Crossref · 10.1101/cshperspect.a008706

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  • MOMP directly promotes the cytosolic release of apoptogenic factors that normally reside in the mitochondrial intermembrane space, including cytochrome c (CYCS) and SMAC.

    “MOMP directly promotes the cytosolic release of apoptogenic factors that normally reside in the mitochondrial intermembrane space [40, 44, 156]. These mitochondrial proteins include (but are not limited to) cytochrome c, somatic (CYCS), which usually operates as an electron shuttle in the mitochondrial respiratory chain [157–160], and diablo IAP-binding mitochondrial protein (DIABLO; also known as”
  • Upon apoptotic signals, BAX and BAK become activated and form macropores in the outer mitochondrial membrane, inducing MOMP.

    “Upon receiving apoptotic signals, pro-apoptotic proteins BAX and BAK become activated, and form macropores in the outer mitochondrial membrane, inducing mitochondrial outer-membrane permeabilization (MOMP) (Tait and Green, 2013) (Fig. 3).”

    From Cytoplasmic DNA: sources, sensing, and role in aging and disease (2021) · cites this paper as Tait and Green, 2013

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Authors
Tait, S. W. G., & Green, D. R.
Affiliations
  • Cancer Research UK Scotland Institute (GB)
  • St. Jude Children's Research Hospital (US)
Venue
Cold Spring Harbor Perspectives in Biology
Published
2013-09-01
Volume
5
Issue
9
Pages
a008706-a008706
ISSN
1943-0264 (ISSN-L)
OpenAlex
W2157965986
Cited by
530
References
114
Citations by year
2026: 29 · 2025: 48 · 2024: 38 · 2023: 57 · 2022: 52 · 2021: 57 · 2020: 46 · 2019: 51 · 2018: 50 · 2017: 26 · 2016: 37 · 2015: 17 · 2014: 20 · 2013: 2
Type
posted content
Language
en
Open access
Locations
  • Cold Spring Harbor Perspectives in Biology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
Funders
National Institute of Allergy and Infectious Diseases (R01AI044828)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
Keywords
mitochondrial outer membrane permeabilization, apoptosis, caspase activation, caspase-independent cell death, mitochondrial permeability transition pore, cell fate
MeSH terms
Enzyme Activation, Mitochondria, Models, Biological, Permeability, Gene Expression Regulation, Enzymologic, Apoptosis, Proto-Oncogene Proteins c-bcl-2, Caspases, Mitochondrial Proteins, Mitochondrial Membranes

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