Cited by 214Parkinson's Disease Mechanisms and TreatmentsNuclear Receptors and SignalingUbiquitin and proteasome pathways

Novel regulation of parkin function through c-Abl-mediated tyrosine phosphorylation: implications for Parkinson’s disease

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Imam, Syed Z., Zhou, Qing, Yamamoto, Ayako, Valente, Anthony J., Ali, Syed F., Bains, Mona, Roberts, James L., Kahle, Philipp J. +2 more·2011·The Journal of Neuroscience

Abstract

Mutations in parkin, an E3 ubiquitin ligase, are the most common cause of autosomal-recessive Parkinson's disease (PD). Here, we show that the stress-signaling non-receptor tyrosine kinase c-Abl links parkin to sporadic forms of PD via tyrosine phosphorylation. Under oxidative and dopaminergic stress, c-Abl was activated in cultured neuronal cells and in striatum of adult C57BL/6 mice. Activated c-Abl was found in the striatum of PD patients. Concomitantly, parkin was tyrosine-phosphorylated, causing loss of its ubiquitin ligase and cytoprotective activities, and the accumulation of parkin substrates, AIMP2 (aminoacyl tRNA synthetase complex-interacting multifunctional protein 2) (p38/JTV-1) and FBP-1.STI-571, a selective c-Abl inhibitor, prevented tyrosine phosphorylation of parkin and restored its E3 ligase activity and cytoprotective function both in vitro and in vivo. Our results suggest that tyrosine phosphorylation of parkin by c-Abl is a major post-translational modification that leads to loss of parkin function and disease progression in sporadic PD. Moreover, inhibition of c-Abl offers new therapeutic opportunities for blocking PD progression.

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Authors
Imam, S. Z., Zhou, Q., Yamamoto, A., Valente, A. J., Ali, S. F., Bains, M., Roberts, J. L., Kahle, P. J., Clark, R. A., & Li, S.
Affiliations
  • The University of Texas at San Antonio Health Science Center (US)
  • Harvard University (US)
  • Hertie Institute for Clinical Brain Research (DE)
  • National Institutes of Health (US)
  • National Center for Toxicological Research (US)
Venue
The Journal of Neuroscience
Published
2011-01-05
Volume
31
Issue
1
Pages
157-163
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1996577359
Cited by
214
References
31
Citations by year
2026: 10 · 2025: 13 · 2024: 15 · 2023: 13 · 2022: 18 · 2021: 18 · 2020: 19 · 2019: 15 · 2018: 10 · 2017: 15 · 2016: 15 · 2015: 8 · 2014: 13 · 2013: 18 · 2012: 8
FWCI
8.92
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Veterans Affairs
  • Parkinson's Disease Foundation
  • San Antonio Area Foundation
  • American Parkinson Disease Association
  • European Commission
  • National Institutes of Health
  • University of Texas Health Science Center at San Antonio
  • National Institute of Neurological Disorders and Stroke (R01NS046004)
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 › Ubiquitin and proteasome pathways
Keywords
Parkin, c-Abl, tyrosine phosphorylation, Parkinson's disease, E3 ubiquitin ligase, non-receptor tyrosine kinase, oxidative stress, striatum, AIMP2, post-translational modification
MeSH terms
Imatinib Mesylate, Acetylcysteine, Animals, Benzamides, Brain, Cell Line, Disease Models, Animal, Dopamine, Drug Administration Schedule, Gene Expression Regulation, Humans, Male, Metalloporphyrins, Mice, Inbred C57BL, Peptide Elongation Factors, Phosphorylation, Piperazines, Polyethylene Glycols, Pyrimidines, Transfection, Tyrosine, Case-Control Studies, Free Radical Scavengers, Proto-Oncogene Proteins c-abl, Oxidative Stress, Statistics, Nonparametric, MPTP Poisoning, Tumor Suppressor Proteins, RNA, Small Interfering, Ubiquitin-Protein Ligases, Protein Kinase Inhibitors, Immunoprecipitation, Green Fluorescent Proteins, Mice, Ubiquitination

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