期刊
JOURNAL OF NEURAL TRANSMISSION
卷 116, 期 11, 页码 1371-1381出版社
SPRINGER WIEN
DOI: 10.1007/s00702-009-0309-7
关键词
Apoptosis; Mitochondria; Oxidative stress; Redox state; Neuroprotection; MAO inhibitor
In Parkinson's disease, impaired function of mitochondrial complex I is involved in selective degeneration of dopamine neurons in the substantia nigra. Mitochondria are now considered to play an active role in neuronal death process through activating intrinsic apoptotic signaling, in addition to production of reactive oxygen species. This paper presents our recent findings on new functions of mitochondria in regulation of their redox state and function through reversible S-glutathionylation, a mixed disulfide binding between sulfhydryl groups of GSH and protein cysteine in complex I subunits. Type A monoamine oxidase (MAO-A) localized at the mitochondrial outer membrane is a binding site of neurotoxins leading to apoptosis. Rasagiline and (-)deprenyl, type B MAO inhibitors of propagylamine-derivatives, bind to MAO-A to protect neuronal cells against apoptosis through induction of pro-survival Bcl-2 and neurotrophic factors. This review discusses the new role of mitochondria in regulation of neuronal cell death of neurodegenerative disorders.
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