期刊
CANCER BIOLOGY & THERAPY
卷 9, 期 10, 页码 819-824出版社
TAYLOR & FRANCIS INC
DOI: 10.4161/cbt.9.10.11552
关键词
DHA; TRAIL; prostate cancer; death receptor 5; PI3-K/Akt; ERK; combination therapy
类别
资金
- NIH [CA128096, ES014489]
Dihydroartemisinin (DHA) is a derivative of artemisinin and is an effective anti-malaria therapeutic used worldwide. In this paper, we report that DHA is as a potential anticancer drug for prostate cancer. Our data indicate that DHA suppresses the PI3-K/Akt and ERK cell survival pathways and triggers the induction of death receptor DR5 and activation of extrinsic and intrinsic cell death signaling. DHA -mediated DR5 induction appears to occur via increased transcriptional activity of DR5 promoter. Our data also show that, while DHA has strong cytotocixity in tumor cells, it exhibits minimal cytotoxic effects on normal prostate epithelial cells. Our studies also demonstrate that DHA worked cooperatively with death ligand TRAIL. Combination of DHA and TRAIL significantly enhanced cell killing above that noted with a single agent alone. Based on these results, we propose a novel idea of developing DHA alone and/or in combination with TRAIL for the treatment of prostate cancer.
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