BL-918 activates PINK1/Parkin signaling pathway to ameliorate the progression of Parkinson's disease.

J Biol Chem

School of Pharmaceutical Sciences, Tsinghua University, Beijing, China; State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, China. Electronic address:

Published: August 2024

The pathogenesis of Parkinson's disease (PD) has been associated with mitochondrial dysfunction. Given that the PINK1/Parkin pathway governs mitochondrial quality control by inducing mitophagy to remove damaged mitochondria, therapeutic approaches to activate PINK1/Parkin-mediated mitophagy have the potential in the treatment of PD. Here, we have identified a new small molecule, BL-918, as an inducer of mitophagy via activating the PINK1/Parkin pathway. BL-918 triggers PINK1 accumulation and Parkin mitochondrial translocation to initiate PINK1/Parkin-mediated mitophagy. We found that mitochondrial membrane potential and mitochondrial permeability transition pore were involved in BL-918-induced PINK1/Parkin pathway activation. Moreover, we showed that BL-918 mitigated PD progression in MPTP-induced PD mice in a PINK1-dependent manner. Our results unravel a new activator of the PINK1/Parkin signaling pathway and provide a potential strategy for the treatment of PD and other diseases with dysfunctional mitochondria.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11345547PMC
http://dx.doi.org/10.1016/j.jbc.2024.107543DOI Listing

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