Curcumins upregulate expression of HO-1 via inducing Nrf-2 in SH-SY5Y cells / 中国药理学通报

ABSTRACT

Aim To investigate the effect of Curcumin on the expression of HO-1 and Nrf-2,and explore the machanism of neuroprotection of Curcumin. Methods SH-SY5Y cells were treated with Curcumin at 0,1. 25, 5. 0,20. 0 ?mol?L -1,or with Curcumin at 5. 0?mol? L -1 for 12,24,48 h for the time course assay. RT-PCR and Western blot assays were carried out to detect mRNA and protein expression of Nrf-2 and HO-1. Nrf-2 siRNA was used to dectect the expression of HO-1 with the absence of Nrf-2. Results RT-PCR and Westernblot results indicated that the mRNA and protein expression of HO-1 and Nrf-2 all increased in a dose-and time-dependent manner after Curcumin treatment in the SH-SY5Y cells ( P