Cited by 1,788Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingMitochondrial Function and Pathology

Drosophila pink1 is required for mitochondrial function and interacts genetically with parkin

Clark, Ira E., Dodson, Mark W., Jiang, Changan, Cao, Joseph H., Huh, Jun R., Seol, Jae Hong, Yoo, Soon Ji, Hay, Bruce A. +1 more·2006·Nature

Abstract

Parkinson's disease is the second most common neurodegenerative disorder and is characterized by the degeneration of dopaminergic neurons in the substantia nigra. Mitochondrial dysfunction has been implicated as an important trigger for Parkinson's disease-like pathogenesis because exposure to environmental mitochondrial toxins leads to Parkinson's disease-like pathology. Recently, multiple genes mediating familial forms of Parkinson's disease have been identified, including PTEN-induced kinase 1 (PINK1; PARK6) and parkin (PARK2), which are also associated with sporadic forms of Parkinson's disease. PINK1 encodes a putative serine/threonine kinase with a mitochondrial targeting sequence. So far, no in vivo studies have been reported for pink1 in any model system. Here we show that removal of Drosophila PINK1 homologue (CG4523; hereafter called pink1) function results in male sterility, apoptotic muscle degeneration, defects in mitochondrial morphology and increased sensitivity to multiple stresses including oxidative stress. Pink1 localizes to mitochondria, and mitochondrial cristae are fragmented in pink1 mutants. Expression of human PINK1 in the Drosophila testes restores male fertility and normal mitochondrial morphology in a portion of pink1 mutants, demonstrating functional conservation between human and Drosophila Pink1. Loss of Drosophila parkin shows phenotypes similar to loss of pink1 function. Notably, overexpression of parkin rescues the male sterility and mitochondrial morphology defects of pink1 mutants, whereas double mutants removing both pink1 and parkin function show muscle phenotypes identical to those observed in either mutant alone. These observations suggest that pink1 and parkin function, at least in part, in the same pathway, with pink1 functioning upstream of parkin. The role of the pink1-parkin pathway in regulating mitochondrial function underscores the importance of mitochondrial dysfunction as a central mechanism of Parkinson's disease pathogenesis.

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Crossref · 10.1038/nature04779

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Authors
Clark, I. E., Dodson, M. W., Jiang, C., Cao, J. H., Huh, J. R., Seol, J. H., Yoo, S. J., Hay, B. A., & Guo, M.
Affiliations
  • University of California, Los Angeles (US)
  • California Institute of Technology (US)
  • Seoul National University (KR)
  • Kyung Hee University (KR)
Corresponding author
Guo, Ming
Venue
Nature
Published
2006-05-03
Volume
441
Issue
7097
Pages
1162-1166
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2143161560
Cited by
1,788
References
32
Citations by year
2026: 35 · 2025: 62 · 2024: 56 · 2023: 58 · 2022: 79 · 2021: 99 · 2020: 112 · 2019: 77 · 2018: 100 · 2017: 92 · 2016: 90 · 2015: 101 · 2014: 104 · 2013: 116 · 2012: 116
FWCI
63.86
Type
journal article
Language
en
Open access
closed
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Alfred P. Sloan Foundation
  • California Institute of Technology
  • National Institutes of Health
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
PINK1, Parkin, Parkinson's disease, Drosophila, mitochondrial dysfunction, mitochondrial morphology, male sterility, muscle degeneration, oxidative stress sensitivity, neurodegeneration, E3 ubiquitin ligase, mitochondrial cristae, dopaminergic neurons
MeSH terms
PTEN-Induced Putative Kinase, Adenosine Triphosphate, Animals, Drosophila melanogaster, Epistasis, Genetic, Genetic Complementation Test, Humans, Infertility, Male, Longevity, Male, Mitochondria, Muscles, Mutation, Parkinson Disease, Phenotype, Protein Kinases, Spermatids, Apoptosis, Protein Transport, Drosophila Proteins, Ubiquitin-Protein Ligases

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