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In contrast to the well-known anti-tumor mechanisms of aspirin in inducing apoptosis or autophagy, we here for the first time report oncosis induced by aspirin in tumor cells. In vitro and in vivo analysis showed that aspirin induced compromised Bcl-XL level and subsequent ATP depletion. Overexpression of CFP-Bcl-XL in Hela and A549 cells observably inhibited aspirin-induced ATP depletion and almost...
In this study, we aimed to investigate the antitumor effect of LYG-202, a newly synthesized piperazine-substituted derivative of flavonoid on human breast cancer cells and illustrate the potential mechanisms. LYG-202 induced apoptosis in MCF-7, MDA-MB-231 and MDA-MB-435 cells. LYG-202 triggered the activation of mitochondrial apoptotic pathway through multiple steps: increasing Bax/Bcl-2 ratio, decreasing...
This report is designed to dissect the detail molecular mechanism by which dihydroartemisinin (DHA), a derivative of artemisinin, induces apoptosis in human hepatocellular carcinoma (HCC) cells. DHA induced a loss of the mitochondrial transmemberane potential (ΔΨm), release of cytochrome c, activation of caspases, and externalization of phosphatidylserine indicative of apoptosis induction. Compared...
This report is designed to explore the roles of caspase-8, -9 and -3 in artemisinin (ARTE)-induced apoptosis in non-small cell lung cancer cells (A549 cells). ARTE induced reactive oxygen species (ROS)-mediated apoptosis in dose- and time-dependent fashion. Although ARTE treatment did not induce Bid cleavage and significant loss of mitochondrial membrane potential, it induced release of Smac and AIF...
Although caspases have been demonstrated to be involved in artemisinin (ARTE)-induced apoptosis, their exact functions are not well understood. The aim of this report is to explore the roles of caspase-8, -9 and -3 during ARTE-induced apoptosis in human lung adenocarcinoma (ASTC-a-1) cells. ARTE treatment induces a rapid generation of reactive oxygen species (ROS), and ROS-dependent apoptosis as well...
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