02 June 2017 : Laboratory Research
Med Sci Monit 2017; 23:2684-2691
BACKGROUND: We investigated the influence of Resolvin D1 (RvD1) on the inflammatory response in PC12 cells (a cell model of Parkinson disease, PD).
MATERIAL AND METHODS: 4 mmol/L 1-methyl-4-phenylpyridinium ion (Mpp+) was used in PC12 cells for an in vitro PD model. 3-(4,5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide (MTT) assay was used to explore PC12 cell viability. Western blot (WB) experiments were used to identify nuclear factor-κB (NF-κB), phosphorylated extracellular signal-regulated kinase (p-ERK)/p-Jun N-terminal kinase (JNK)/p-P38 mitogen-activated protein kinase (MAPK), tumor necrosis factor (TNF)-α, and interleukin (IL)-6 protein levels. Transcription levels of inflammatory factors, for instance, TNF-α and IL-6, were explored by real-time quantitative polymerase chain reaction (RT-QPCR). Lactic dehydrogenase (LDH) level was detected by enzyme-linked immunosorbent (ELISA). Cell apoptosis was assessed by Annexin-V Fluorescein (FITC) kit.
RESULTS: RvD1 dose-dependently inhibited MPP+ induced upregulation of PC12 cell apoptosis/cellular damage/TNF-α and p-P38/p-ERK/NF-κB as well as downregulation of PC12 cell viability.
CONCLUSIONS: We can draw the conclusion that RvD1 attenuates PD via inhibiting Mpp+-induced inflammation in PC12 cells.
Keywords: Parkinsonian Disorders
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