Cited by 509Cell death mechanisms and regulationMitochondrial Function and PathologyAutophagy in Disease and Therapy

Cytochrome c Deficiency Causes Embryonic Lethality and Attenuates Stress-Induced Apoptosis

Open access
Li, Kang, Li, Yucheng, Shelton, John M, Richardson, James A, Spencer, Erika, Chen, Zhijian J, Wang, Xiaodong, Williams, R.Sanders·2000·Cell

Abstract

Cytochrome c released from mitochondria has been proposed to be an essential component of an apoptotic pathway responsive to DNA damage and other forms of cell stress. Murine embryos devoid of cytochrome c die in utero by midgestation, but cell lines established from early cytochrome c null embryos are viable under conditions that compensate for defective oxidative phosphorylation. As compared to cell lines established from wild-type embryos, cells lacking cytochrome c show reduced caspase-3 activation and are resistant to the proapoptotic effects of UV irradiation, serum withdrawal, or staurosporine. In contrast, cells lacking cytochrome c demonstrate increased sensitivity to cell death signals triggered by TNFalpha. These results define the role of cytochrome c in different apoptotic signaling cascades.

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Crossref · 10.1016/s0092-8674(00)80849-1

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44 of 44 references verified0 citation errors · 0 not checkable

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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”

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Authors
Li, K., Li, Y., Shelton, J. M., Richardson, J. A., Spencer, E., Chen, Z. J., Wang, X., & Williams, R. S.
Affiliations
  • The University of Texas Southwestern Medical Center (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
Williams, R.Sanders
Venue
Cell
Publisher
Elsevier BV
Published
2000-05
Volume
101
Issue
4
Pages
389-399
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2025713422
Cited by
509
References
44
Citations by year
2026: 6 · 2025: 13 · 2024: 14 · 2023: 10 · 2022: 7 · 2021: 15 · 2020: 10 · 2019: 13 · 2018: 10 · 2017: 7 · 2016: 16 · 2015: 14 · 2014: 12 · 2013: 15 · 2012: 20
FWCI
18.82
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
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
cytochrome c, embryonic lethality, apoptosis, mitochondrial apoptosis, caspase-3 activation, TNF-alpha-induced cell death, UV-induced apoptosis, staurosporine, oxidative phosphorylation, DNA damage, stress-induced cell death
MeSH terms
Animals, Cytochrome c Group, Embryo, Mammalian, Embryonic and Fetal Development, Apoptosis, Gene Expression Regulation, Developmental, Embryo Loss, Mice

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