Add time:07/29/2019         Source:sciencedirect.com

Increased population with hepatic diseases and apoptosis were found in patients with SLE and implicated in the pathogenesis of SLE. Since cystamine has been demonstrated to be beneficial to NZB/W F1 mice in our previous report, this study intends to investigate the effects of cystamine in liver from NZB/W F1 mice. Decreased apoptosis was detected in liver from NZB/W F1 mice given cystamine as compared to those given PBS by TUNEL and caspase-3 activity assay. Fas-dependent apoptotic proteins including Fas, cleaved caspase-8 and tBid were reduced in liver from NZB/W F1 mice given cystamine as compared to those given PBS. Additionally, the mitochondria-dependent apoptotic proteins including cytochrome c and Apaf-1 were reduced in liver from NZB/W F1 mice given cystamine as compared to those given PBS. Moreover, increased BCL-2 protein was observed in liver from both mice. Notably, increased NF-κB protein was detected in liver from NZB/W F1 mice given cystamine as compared to those given PBS. These experimental results suggest the effect of cystamine in reducing apoptosis in liver from NZB/W F1 mice through Fas-dependent and mitochondrial-dependent pathways. The phosphorylation of NF-κB (p65) could be a possible mechanism involving anti-apoptotic effects of cystamine in liver from NZB/W F1 mice.

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