CCT327 enhances TRAIL-induced apoptosis through the induction of death receptors and downregulation of cel lsurvival proteins in TRAIL-resistant human leukemia cells

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題名:	CCT327 enhances TRAIL-induced apoptosis through the induction of death receptors and downregulation of cel lsurvival proteins in TRAIL-resistant human leukemia cells
作者:	LIU, YAN-JIN;LIU, YAN-JIN;YING-CHAO, LI;LIN, YING-CHAO;JANG-CHANG, L;LEE, JANG-CHANG;SHENG-CHU, KU;KUO, SHENG-CHU;CHI-TANG, HO;CHI-TANG, HO;HUAN, LI-JIAU;HUANG, LI-JIAU;DAIH-HUANG, K;KUO, DAIH-HUANG;魏宗德;Way, Tzong-Der;*
貢獻者:	保健營養生技學系
日期:	2014-05
上傳時間:	2014-10-01 08:47:07 (UTC+0)
摘要:	Tumor necrosis factor-related apoptosis‑inducing ligand (TRAIL) has potential application in cancer therapy and it has the ability to selectively kill cancer cells without affecting normal cells. However, the development of resistance to TRAIL in cancer cells cannot be avoided. This study investigated the effects of 2-(5-methylselenophen‑2‑yl)‑6,7‑methylenedioxyquinolin‑4-one (CCT327), an analogue of quinolin-4-one, on the sensitization of cancer cells to TRAIL and on TRAIL‑induced apoptosis in TRAIL‑resistance human leukemia cells (HL60‑TR). We found that CCT327 enhanced TRAIL‑induced apoptosis through upregulation of death receptors DR4 and DR5. In addition to upregulating DRs (death receptors), CCT327 suppressed the expression of decoy receptor DcR1 and DcR2. CCT327 significantly downregulated the expression of FLICE inhibitory protein (cFLIP) and other antiapoptotic proteins. We also demonstrated that CCT327 could activate p38 and JNK. Moreover, CCT327-induced induction of DR5 and DR4 was mediated by reactive oxygen species (ROS), and N-acetylcysteine (NAC) blocked the induction of DRs by CCT327. Taken together, these results showed that CCT327 combined with TRAIL treatment may provide an effective therapeutic strategy for cancer.
關聯:	ONCOLOGY REPORTS; 32(3):1257-64.
顯示於類別:	[食品營養與保健生技學系] 期刊論文

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