Journal
NEUROBIOLOGY OF AGING
Volume 85, Issue -, Pages 123-130Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2019.09.011
Keywords
6-Hydroxydopamine; Microglia; Mitochondria; Motor dysfunction; MP201; Parkinson's disease
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Funding
- Intramural Research Program of the National Institute on Aging
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Dopaminergic neuronal cell loss in the substantia nigra is responsible for the motor symptoms that are the clinical hallmark of Parkinson's disease (PD). As of yet there are no treatments that slow or prevent the degeneration of dopaminergic neurons in PD patients. Here we tested the hypothesis that dopaminergic neurons can be protected by treatment with the mitochondrial uncoupling agent 2,4-dinitrophenol (DNP) and the novel DNP prodrug MP201. We found that mice treated with low doses of DNP and MP201 were protected against motor dysfunction and dopamine neuron loss in the 6-hydroxydopamine PD model, with MP201 being more efficacious than DNP. Amelioration of motor deficits and dopamine neuron loss by MP201 treatment was associated with reductions in microglial and astrocyte activation and neuroinflammation. These preclinical findings suggest the potential application of mitochondrial uncoupling agents such as MP201 as disease-modifying therapies for PD. (C) 2019 Published by Elsevier Inc.
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