Cited by 420Autophagy in Disease and TherapyMitochondrial Function and PathologyParkinson's Disease Mechanisms and Treatments

Parkin‐independent mitophagy requires Drp1 and maintains the integrity of mammalian heart and brain

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Kageyama, Yusuke, Hoshijima, Masahiko, Seo, Kinya, Bedja, Djahida, Sysa‐Shah, Polina, Andrabi, Shaida A, Chen, Weiran, Höke, Ahmet +6 more·2014·The EMBO Journal

Abstract

Mitochondrial dynamics and mitophagy have been linked to cardiovascular and neurodegenerative diseases. Here, we demonstrate that the mitochondrial division dynamin Drp1 and the Parkinson's disease-associated E3 ubiquitin ligase parkin synergistically maintain the integrity of mitochondrial structure and function in mouse heart and brain. Mice lacking cardiac Drp1 exhibited lethal heart defects. In Drp1KO cardiomyocytes, mitochondria increased their connectivity, accumulated ubiquitinated proteins, and decreased their respiration. In contrast to the current views of the role of parkin in ubiquitination of mitochondrial proteins, mitochondrial ubiquitination was independent of parkin in Drp1KO hearts, and simultaneous loss of Drp1 and parkin worsened cardiac defects. Drp1 and parkin also play synergistic roles in neuronal mitochondrial homeostasis and survival. Mitochondrial degradation was further decreased by combination of Drp1 and parkin deficiency, compared with their single loss. Thus, the physiological importance of parkin in mitochondrial homeostasis is revealed in the absence of mitochondrial division in mammals.

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Crossref · 10.15252/embj.201488658

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Authors
Kageyama, Y., Hoshijima, M., Seo, K., Bedja, D., Sysa‐Shah, P., Andrabi, S. A., Chen, W., Höke, A., Dawson, V. L., Dawson, T. M., Gabrielson, K., Kass, D. A., Iijima, M., & Sesaki, H.
Affiliations
  • Johns Hopkins University (US)
  • University of California San Diego (US)
Corresponding author
Sesaki, Hiromi
Venue
The EMBO Journal
Published
2014-10-27
Volume
33
Issue
23
Pages
2798-2813
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2170457695
Cited by
420
References
40
Citations by year
2026: 6 · 2025: 18 · 2024: 34 · 2023: 38 · 2022: 40 · 2021: 52 · 2020: 51 · 2019: 26 · 2018: 41 · 2017: 37 · 2016: 42 · 2015: 33 · 2014: 2
FWCI
28.71
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • NIH (GM084015, GM089853, NS084154, HL107153, HL59480, HL077180, NS38377)
  • AHA (0840013N, 12GRANT1173006)
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
Parkin, Drp1, mitophagy, mitochondrial division, mitochondrial dynamics, mitochondrial ubiquitination, mitochondrial homeostasis, cardiomyocytes, neuronal survival, cardiac anomalies, brain, Parkinson's disease, mitochondrial respiration
MeSH terms
Animals, Brain, Microscopy, Fluorescence, Mitochondria, Mice, Knockout, Myosin Heavy Chains, Myocytes, Cardiac, Dynamins, Ubiquitin-Protein Ligases, Mice, Ubiquitination, Electron Microscope Tomography, Mitophagy

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