Cited by 264Autophagy in Disease and TherapyParkinson's Disease Mechanisms and TreatmentsNuclear Receptors and Signaling

Mitochondrial and lysosomal biogenesis are activated following PINK 1/parkin‐mediated mitophagy

Open access
Ivankovic, Davor, Chau, Kai‐Yin, Schapira, Anthony H. V., Gegg, Matthew E.·2016·Journal of Neurochemistry

Abstract

Impairment of the autophagy-lysosome pathway is implicated with the changes in α-synuclein and mitochondrial dysfunction observed in Parkinson's disease (PD). Damaged mitochondria accumulate PINK1, which then recruits parkin, resulting in ubiquitination of mitochondrial proteins. These can then be bound by the autophagic proteins p62/SQSTM1 and LC3, resulting in degradation of mitochondria by mitophagy. Mutations in PINK1 and parkin genes are a cause of familial PD. We found a significant increase in the expression of p62/SQSTM1 mRNA and protein following mitophagy induction in human neuroblastoma SH-SY5Y cells. p62 protein not only accumulated on mitochondria, but was also greatly increased in the cytosol. Increased p62/SQSMT1 expression was prevented in PINK1 knock-down cells, suggesting increased p62 expression was a consequence of mitophagy induction. The transcription factors Nrf2 and TFEB, which play roles in mitochondrial and lysosomal biogenesis, respectively, can regulate p62/SQSMT1. We report that both Nrf2 and TFEB translocate to the nucleus following mitophagy induction and that the increase in p62 mRNA levels was significantly impaired in cells with Nrf2 or TFEB knockdown. TFEB translocation also increased expression of itself and lysosomal proteins such as glucocerebrosidase and cathepsin D following mitophagy induction. We also report that cells with increased TFEB protein have significantly higher PGC-1α mRNA levels, a regulator of mitochondrial biogenesis, resulting in increased mitochondrial content. Our data suggests that TFEB is activated following mitophagy to maintain autophagy-lysosome pathway and mitochondrial biogenesis. Therefore, strategies to increase TFEB may improve both the clearance of α-synuclein and mitochondrial dysfunction in PD. Damaged mitochondria are degraded by the autophagy-lysosome pathway and is termed mitophagy. Following mitophagy induction, the transcription factors Nrf2 and TFEB translocate to the nucleus, inducing the transcription of genes encoding for autophagic proteins such as p62, as well as lysosomal and mitochondrial proteins. We propose that these events maintain autophagic flux, replenish lysosomes and replace mitochondria.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1111/jnc.13412

Cites

62 of 62 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ivankovic, D., Chau, K., Schapira, A. H. V., & Gegg, M. E.
Affiliations
UCL Queen Square Institute of Neurology (GB)
Corresponding author
Gegg, Matthew E.
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
2015-11-24
Volume
136
Issue
2
Pages
388-402
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W1853148353
Cited by
264
References
62
Citations by year
2026: 22 · 2025: 31 · 2024: 28 · 2023: 30 · 2022: 33 · 2021: 28 · 2020: 24 · 2019: 24 · 2018: 16 · 2017: 18 · 2016: 9
FWCI
11.24
Type
journal article
Language
en
Open access
Locations
  • Journal of Neurochemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Medical Research Council (MR/M006646/1)
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
mitophagy, PINK1, Parkin, autophagy-lysosome pathway, mitochondrial biogenesis, lysosomal biogenesis, p62, Nrf2, TFEB, PGC-1α, alpha-synuclein, Parkinson's disease, glucocerebrosidase, cathepsin D, mitochondrial dysfunction, SH-SY5Y cells
MeSH terms
Sequestosome-1 Protein, Mitochondrial Precursor Protein Import Complex Proteins, PTEN-Induced Putative Kinase, Carbonyl Cyanide m-Chlorophenyl Hydrazone, Cell Nucleolus, Cytosol, Gene Expression Regulation, Heat-Shock Proteins, Humans, Lysosomes, Mitochondria, Neuroblastoma, Protein Kinases, Receptors, Cell Surface, Time Factors, Transfection, Tubulin, Gene Expression Regulation, Neoplastic, Membrane Transport Proteins, RNA, Small Interfering, Ubiquitin-Protein Ligases, Cell Line, Tumor, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors, Proton Ionophores, Mitophagy

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review