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Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell+Mol+Neurobiol 2016 ; 36 (ä): 811-20 Nephropedia Template TP
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?-Mangostin Inhibits ?-Synuclein-Induced Microglial Neuroinflammation and Neurotoxicity #MMPMID27002719
Hu Z; Wang W; Ling J; Jiang C
Cell Mol Neurobiol 2016[]; 36 (ä): 811-20 PMID27002719show ga
Microglia-mediated neuroinflammation induced by ?-synuclein in the substantianigra likely either initiates or aggravates nigral neuro degeneration in Parkinson?s disease (PD). We aimed to explore the effects of ?-mangostin (?-M), a polyphenolicxanthone derivative from mangosteen on ?-synuclein-stimulated DA neurodegeneration. Primary microglia, mesencephalic neuron, mesencephalic neuron-glianeuronal cultures, and transwell co-cultures were prepared separately. Liquid scintillation counting was used to determine the radioactivity in DA uptake. Enzyme-linked immunosorbent assay (ELISA) was performed in the IL-1?, IL-6, and TNF-? assay. The expression of proteins was analyzed by Western blot. ?-M inhibited the increased levels of pro-inflammatory cytokines, NO, and ROS in ?-synuclein-stimulated primary microglia. Mechanistic study revealed that ?-M functioned by inhibition of nuclear factor kappa B (NF-?B) and NADPH oxidase. Further, ?-M protected ?-synuclein-induced microglial and direct neurotoxicity. Although detailed mechanisms remain to be defined, our observations suggest a potential compound, which inhibits microglial activation induced by ?-synuclein by targeting NADPH oxidase, might be a therapeutic possibility in preventing PD progression.