Abstract:Objective:To investigate the effect and molecular mechanism of anisodamine(Ani) on MPP+-induced SK-NSH cell damage. Methods:SK-N-SH cells were divided into Con group, MPP+ group,MPP++Ani-L、M、H group, MPP++ si-NC group, MPP++si-LINC00657 group, MPP++Ani+pcDNA group, MPP++Ani+pcDNA-LINC00657 group. Kit to detect malondialdehyde(MDA) content and glutathione(GSH) activity,flow cytometry to detect apoptosis,Western blot method to detect Bcl- 2 and Bax protein expression,real- time fluorescence quantitative PCR(RT- qPCR) detection of LINC00657 and miR- 496 expression, dual luciferase report test to detect the targeting relationship between LINC00657 and miR- 496. Results:After treatment with anisodamine at different concentrations, MDA content was decreased in MPP+-induced SKN- SH cell, GSH activity was increased, apoptosis rate was decreased, Bcl-2 expression was increased, Bax expression was decreased, LINC00657 expression was decreased, expression of miR- 496 was increased, in a concentrationdependent manner(P<0.05). LINC00657 regulates the expression of miR-496, after inhibiting the expression of LINC00657, MDA content was decreased in MPP+-induced SK-N-SH cell, GSH activity was increased, apoptosis rate was decreased, Bcl-2 expression was increased, Bax expression was decreased(P<0.05). LINC00657 overexpression reversed the effect of anisodamine on MPP +- induced SK- N- SH cell damage. Conclusion: Anisodamine protects SK- N- SH cells from MPP +- induced injury by regulating the lncRNA LINC00657/miR-496 pathway.