Cited by 1,083Autophagy in Disease and TherapyMitochondrial Function and PathologyParkinson's Disease Mechanisms and Treatments

The DOI matches its Crossref record; 66 of the 66 references it cites were found in a registry or an index.

Cardiolipin externalization to the outer mitochondrial membrane acts as an elimination signal for mitophagy in neuronal cells

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Abstract

Recognition of injured mitochondria for degradation by macroautophagy is essential for cellular health, but the mechanisms remain poorly understood. Cardiolipin is an inner mitochondrial membrane phospholipid. We found that rotenone, staurosporine, 6-hydroxydopamine and other pro-mitophagy stimuli caused externalization of cardiolipin to the mitochondrial surface in primary cortical neurons and SH-SY5Y cells. RNAi knockdown of cardiolipin synthase or of phospholipid scramblase-3, which transports cardiolipin to the outer mitochondrial membrane, decreased the delivery of mitochondria to autophagosomes. Furthermore, we found that the autophagy protein microtubule-associated-protein-1 light chain 3 (LC3), which mediates both autophagosome formation and cargo recognition, contains cardiolipin-binding sites important for the engulfment of mitochondria by the autophagic system. Mutation of LC3 residues predicted as cardiolipin-interaction sites by computational modelling inhibited its participation in mitophagy. These data indicate that redistribution of cardiolipin serves as an 'eat-me' signal for the elimination of damaged mitochondria from neuronal cells.

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Metadata

Authors
Chu, C. T., Ji, J., Dagda, R. K., Jiang, J. F., Tyurina, Y. Y., Kapralov, A. A., Tyurin, V. A., Yanamala, N., Shrivastava, I. H., Mohammadyani, D., Qiang Wang, K. Z., Zhu, J., Klein-Seetharaman, J., Balasubramanian, K., Amoscato, A. A., Borisenko, G., Huang, Z., Gusdon, A. M., Cheikhi, A., Steer, E. K., Wang, R., Baty, C., Watkins, S., Bahar, I., Bayır, H., & Kagan, V. E.
Affiliations
University of Pittsburgh (US)
Corresponding author
  • Chu, Charleen T.
  • Tyurina, Yulia Y.
  • Bayır, Hülya
  • Kagan, Valerian E.
Venue
Nature Cell Biology
Published
2013-09-15
Volume
15
Issue
10
Pages
1197-1205
ISSN
  • 1465-7392 (ISSN-L)
  • 1476-4679
OpenAlex
W2135592618
Cited by
1,083
References
66
Citations by year
2026: 75 · 2025: 96 · 2024: 102 · 2023: 87 · 2022: 83 · 2021: 105 · 2020: 104 · 2019: 82 · 2018: 73 · 2017: 85 · 2016: 60 · 2015: 65 · 2014: 59 · 2013: 6
FWCI
46.15
Type
journal article
Language
en
Open access
Locations
  • Nature Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Public Health Service (U19AIO68021)
  • National Institute on Aging (AG026389, F32AG030821, R01AG026389)
  • National Heart, Lung, and Blood Institute (HL-70755, R01HL070755, R01HL094488)
  • National Institute of General Medical Sciences (P20GM103554, P41GM103712)
  • National Institute of Allergy and Infectious Diseases (U19AI068021)
  • National Institute of Neurological Disorders and Stroke (NS065789, NS076511, R01NS061817, R01NS065789, NS061817, R56NS065789, R37NS061817, R01NS076511)
  • National Institute of Environmental Health Sciences (R21ES021068, ES 020693, R01ES020693)
  • National Institute for Occupational Safety and Health (R01 OH008282, OH008282)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R21HD057587)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Clinical Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
cardiolipin, mitophagy, mitochondrial outer membrane, LC3, cardiolipin synthase, autophagy, neurons, mitochondrial damage, autophagosome formation, rotenone, staurosporine, 6-hydroxydopamine
MeSH terms
Amino Acid Sequence, Animals, Autophagy, Biological Transport, Cardiolipins, Cells, Cultured, HeLa Cells, Humans, Mitochondria, Models, Molecular, Molecular Sequence Data, Neurons, Rotenone, Uncoupling Agents, Signal Transduction, Oxidopamine, Rats, Sprague-Dawley, Protein Structure, Tertiary, Cell Line, Tumor, Mitochondrial Membranes, Rats, Gene Knockdown Techniques, Mitophagy

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