Parkin and PINK1: much more than mitophagy
Open accessAbstract
Parkinson's disease (PD) is a progressive neurodegenerative disease that causes a debilitating movement disorder. Although most cases of PD appear to be sporadic, rare Mendelian forms have provided tremendous insight into disease pathogenesis. Accumulating evidence suggests that impaired mitochondria underpin PD pathology. In support of this theory, data from multiple PD models have linked Phosphatase and tensin homolog (PTEN)-induced putative kinase 1 (PINK1) and parkin, two recessive PD genes, in a common pathway impacting mitochondrial health, prompting a flurry of research to identify their mitochondrial targets. Recent work has focused on the role of PINK1 and parkin in mediating mitochondrial autophagy (mitophagy); however, emerging evidence casts parkin and PINK1 as key players in multiple domains of mitochondrial health and quality control.
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Loss of PRKN and PINK1 dysregulates mitophagy and increases mitochondria stress, leading to mito-inflammation, which is involved in PD pathology in PINK1 and PRKN deficient mice.
“Multiple studies have revealed that loss of PRKN and PINK1 dysregulated mitophagy and increased mitochondria stress, leading to mito-inflammation,267 which was recently suggested to be involved in PD pathology in PINK1 and PRKN deficient mice.268”
From Role of neuroinflammation in neurodegeneration development (2023) · cites this paper as [267]
The section “PINK1 and parkin initiate the removal of mitochondrial proteins” describes their role in mitophagy in cell models, but says their role in mitophagy in patients is unestablished and that knockout mice do not accumulate abnormal damaged mitochondria. Our copy does not support the claimed progression from mitochondrial stress to mito-inflammation. The mouse PD-pathology clause is attached to a different citation (268). (LLM, conf=0.84)
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References 78 · Cited by 392
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- Authors
- Scarffe, L. A., Stevens, D. A., Dawson, V. L., & Dawson, T. M.
- Affiliations
- Johns Hopkins University (US)
- Venue
- Trends in Neurosciences
- Publisher
- Elsevier BV
- Published
- 2014-06
- Volume
- 37
- Issue
- 6
- Pages
- 315-324
- ISSN
- 0166-2236 (ISSN-L)
- PMC
- PMC4075431
- OpenAlex
- W1993098682
- Cited by
- 392
- References
- 78
- Citations by year
- 2026: 15 · 2025: 12 · 2024: 27 · 2023: 15 · 2022: 30 · 2021: 38 · 2020: 47 · 2019: 25 · 2018: 32 · 2017: 38 · 2016: 37 · 2015: 53 · 2014: 22
- FWCI
- 6.85
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Trends in Neurosciences (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- Canadian Institutes of Health Research
- National Institute on Drug Abuse (P50DA000266)
- National Institute of General Medical Sciences (T32GM007309)
- National Institute of Neurological Disorders and Stroke (NS 38377, P50NS038377, R01NS067525)
- Topics
- Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
- Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
- Keywords
- Parkin, PINK1, Parkinson's disease, mitophagy, mitochondrial quality control, mitochondrial dysfunction
- MeSH terms
- PTEN-Induced Putative Kinase, Animals, Humans, Mitochondria, Parkinson Disease, Protein Kinases, Mitochondrial Diseases, Ubiquitin-Protein Ligases
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