The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.
PINK1-induced mitophagy promotes neuroprotection in Huntington’s disease
Open accessAbstract
Huntington’s disease (HD) is a fatal neurodegenerative disorder caused by aberrant expansion of CAG repeat in the huntingtin gene. Mutant Huntingtin (mHtt) alters multiple cellular processes, leading to neuronal dysfunction and death. Among those alterations, impaired mitochondrial metabolism seems to have a major role in HD pathogenesis. In this study, we used the Drosophila model system to further investigate the role of mitochondrial damages in HD. We first analyzed the impact of mHtt on mitochondrial morphology, and surprisingly, we revealed the formation of abnormal ring-shaped mitochondria in photoreceptor neurons. Because such mitochondrial spheroids were previously detected in cells where mitophagy is blocked, we analyzed the effect of PTEN-induced putative kinase 1 (PINK1), which controls Parkin-mediated mitophagy. Consistently, we found that PINK1 overexpression alleviated mitochondrial spheroid formation in HD flies. More importantly, PINK1 ameliorated ATP levels, neuronal integrity and adult fly survival, demonstrating that PINK1 counteracts the neurotoxicity of mHtt. This neuroprotection was Parkin-dependent and required mitochondrial outer membrane proteins, mitofusin and the voltage-dependent anion channel. Consistent with our observations in flies, we demonstrated that the removal of defective mitochondria was impaired in HD striatal cells derived from HdhQ111 knock-in mice, and that overexpressing PINK1 in these cells partially restored mitophagy. The presence of mHtt did not affect Parkin-mediated mitochondrial ubiquitination but decreased the targeting of mitochondria to autophagosomes. Altogether, our findings suggest that mitophagy is altered in the presence of mHtt and that increasing PINK1/Parkin mitochondrial quality control pathway may improve mitochondrial integrity and neuroprotection in HD.
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Cites
PINK1 Is Selectively Stabilized on Impaired Mitochondria to Activate Parkin
Narendra, D. P., Jin, S. M., Tanaka, A., Suen, D.-F., Gautier, C. A., Shen, J., Cookson, M. R., & Youle, R. J. (2010) · PLoS Biology · doi:10.1371/journal.pbio.1000298 · Cited by 2,944
PINK1/Parkin-mediated mitophagy is dependent on VDAC1 and p62/SQSTM1
Geisler, S., Holmström, K. M., Skujat, D., Fiesel, F. C., Rothfuss, O. C., Kahle, P. J., & Springer, W. (2010) · Nature Cell Biology · doi:10.1038/ncb2012 · Cited by 2,835
Matsuda, N., Sato, S., Shiba, K., Okatsu, K., Saisho, K., Gautier, C. A., Sou, Y.-S., Saiki, S., Kawajiri, S., Sato, F., et al. (2010) · Journal of Cell Biology · doi:10.1083/jcb.200910140 · Cited by 1,969
Mitochondrial dysfunction in Drosophila PINK1 mutants is complemented by parkin
Park, J., Lee, S. B., Lee, S., Kim, Y., Song, S., Kim, S., Bae, E., Kim, J., Shong, M., Kim, J.-M., et al. (2006) · Nature · doi:10.1038/nature04788 · Cited by 1,705
PINK1-dependent recruitment of Parkin to mitochondria in mitophagy
Vives-Bauza, C., Zhou, C., Huang, Y., Cui, M., de Vries, R. L. A., Kim, J., May, J., Tocilescu, M. A., Liu, W., Ko, H. S., et al. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0911187107 · Cited by 1,616
Proteasome and p97 mediate mitophagy and degradation of mitofusins induced by Parkin
Tanaka, A., Cleland, M. M., Xu, S., Narendra, D. P., Suen, D.-F., Karbowski, M., & Youle, R. J. (2010) · Journal of Cell Biology · doi:10.1083/jcb.201007013 · Cited by 1,369 · cited 1×
“Moreover, ubiquitination of Mfn by Parkin may account for its rapid removal from the mitochondria, therefore preventing damaged mitochondrial fragments to fuse back and corrupt healthy mitochondria.(35,36) However, in our study, silencing Mfn failed to ameliorate the survival of HD flies and abolished the beneficial e…”
BackgroundBrowne, S. E., Bowling, A. C., Macgarvey, U., Baik, M. J., Berger, S. C., Muquit, M. M. K., Bird, E. D., & Beal, M. F. (1997) · Annals of Neurology · doi:10.1002/ana.410410514 · Cited by 885
Cargo recognition failure is responsible for inefficient autophagy in Huntington’s disease
Martinez-Vicente, M., Talloczy, Z., Wong, E., Tang, G., Koga, H., Kaushik, S., de Vries, R., Arias, E., Harris, S., Sulzer, D., et al. (2010) · Nature Neuroscience · doi:10.1038/nn.2528 · Cited by 885
Mitochondrial defect in Huntington's disease caudate nucleus
Gu, M., Gash, M. T., Mann, V. M., Javoy‐Agid, F., Cooper, J. M., & Schapira, A. H. V. (1996) · Annals of Neurology · doi:10.1002/ana.410390317 · Cited by 758
PINK1 Protects against Oxidative Stress by Phosphorylating Mitochondrial Chaperone TRAP1
Pridgeon, J. W., Olzmann, J. A., Chin, L.-S., & Li, L. (2007) · PLoS Biology · doi:10.1371/journal.pbio.0050172 · Cited by 596
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Metadata
- Authors
- Khalil, B., El Fissi, N., Aouane, A., Cabirol-Pol, M.-J., Rival, T., & Liévens, J.-C.
- Venue
- Cell Death & Disease
- Published
- 2015-01-22
- Volume
- 6
- Issue
- 1
- Pages
- e1617-e1617
- ISSN
- 2041-4889 (ISSN-L)
- OpenAlex
- W2041940338
- Cited by
- 230
- References
- 14
- FWCI
- 6.19
- Type
- journal article
- Language
- en
- Open access
- gold
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
