Bao B, Zhang MQ, Chen ZY, Wu XB, Xia ZB, Chai JY, Yin XP. Sulforaphane prevents PC12 cells from oxidative damage via the Nrf2 pathway.
Mol Med Rep 2019;
19:4890-4896. [PMID:
31059012 PMCID:
PMC6522909 DOI:
10.3892/mmr.2019.10148]
[Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 04/03/2019] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was to investigate the protective effect of sulforaphane (SFN) on 1-methyl-4-phenyl pyridine ion (MPP+)-induced cytotoxicity and to investigate its possible mechanisms. Methods: PC12 cell toxicity induced by MPP+ served as a cell model of Parkinson's diseases. The cell culture + experiments were divided into four groups based on the different treatments, namely, vehicle control, SFN, MPP+ and SFN pretreatment plus MPP+. Cell viability and apoptosis were examined by MTT assay and flow cytometry, respectively. Expressions of nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase 1 (HO-1) and nicotinamide quinone oxidoreductase 1 (NQO1) were detected using western blotting. Results: MPP+ reduced the survival rate of PC12 cells in a dose- and time-dependent manner. After 24-h treatment with 500 µmol/l MPP+, the survival rate of PC12 cells decreased to 58.2±0.03% of that in the control groups. Under the same conditions MPP+ resulted in significant apoptosis of PC12 cells (apoptosis rate: 30.4±0.6%). However, SFN pretreatment significantly attenuated the cell damage induced by MPP+. Furthermore, it was demonstrated that SFN reversed the reduction of Nrf2, HO-1 and NQO1 expression induced by MPP+. Conclusion: SFN may protect PC12 cells from MPP+-induced damage via activating the Nrf2-ARE (antioxidant responsive element) pathway.
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