At present,Hepatocarcinoma is one of the main causes of tumor related death all over the world.However,there are still many clinical restrictions on the treatment of liver cancer.Recently,L-Selenocystine has been show...At present,Hepatocarcinoma is one of the main causes of tumor related death all over the world.However,there are still many clinical restrictions on the treatment of liver cancer.Recently,L-Selenocystine has been shown to be a novel treatment for tumors,especially human glioma cells.But,the mechanism of L-Selenocystine against hepatocellular carcinoma remains unclear.Therefore,the main objective of this study was to investigate the effects of L-Selenocystine on HepG2 cell proliferation and activation of reactive oxygen species(ROS)mediated signaling pathway.L-Selenocystine can significantly inhibit HepG2 cell proliferation by activating caspase-3 and cleaving PARP to induce apoptosis.Moreover,the excessive production of ROS and the influence of Bax signaling pathway which can promote cell apoptosis are key factors for L-Selenocystine to induce HepG2 cell apoptosis.Therefore,the date of this study suggest that ROS mediated signal transduction mechanism may provide certain reference significance for L-Selenocystine induced HepG2 cell apoptosis.展开更多
基金This work was supported by the fund from Open Project of Guangdong Key Laboratory of Marine Materia Medica(LMM2020-7)the fund from Guangzhou Institute of Pediatrics/Guangzhou Women and Children’s Medical Center(Nos.Pre-NSFC-2019-016,YIP-2019-059,IP-2019-019)+3 种基金the Project of Traditional Chinese Medicine Bureau of Guangdong Province(No.20192075)the technology planning projects of Guangdong province(No.202102010202)The Guangdong Natural Science Foundation(2020A1515110648)the Open Fund of Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications(2020A03).
文摘At present,Hepatocarcinoma is one of the main causes of tumor related death all over the world.However,there are still many clinical restrictions on the treatment of liver cancer.Recently,L-Selenocystine has been shown to be a novel treatment for tumors,especially human glioma cells.But,the mechanism of L-Selenocystine against hepatocellular carcinoma remains unclear.Therefore,the main objective of this study was to investigate the effects of L-Selenocystine on HepG2 cell proliferation and activation of reactive oxygen species(ROS)mediated signaling pathway.L-Selenocystine can significantly inhibit HepG2 cell proliferation by activating caspase-3 and cleaving PARP to induce apoptosis.Moreover,the excessive production of ROS and the influence of Bax signaling pathway which can promote cell apoptosis are key factors for L-Selenocystine to induce HepG2 cell apoptosis.Therefore,the date of this study suggest that ROS mediated signal transduction mechanism may provide certain reference significance for L-Selenocystine induced HepG2 cell apoptosis.
