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- W2004142821 abstract "The 5-year survival rate of nasopharyngeal carcinoma (NPC) is disappointing despite the much improved technologies in its treatment. Thus, finding more effective treatment for NPC has become an urgent priority. The tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) can selectively induce apoptosis in most tumor cells while sparing normal cells. However, its potential in the treatment of NPC has been limited by the eventual emergence of drug resistance. Bcl-2 and Akt contribute to TRAIL resistance in some cancer cells. In this study, CNE-2 was found to be the most resistant NPC cell line to TRAIL, and whether Bcl-2 small-interfering RNA (siRNA) and phosphatidylinositol 3-kinase (PI3-K) inhibitors (LY294002 and Wortmannin) could prevent TRAIL resistance in CNE-2 was also investigated. Results showed that both Bcl-2 siRNA and PI3-K inhibitors could prevent TRAIL resistance in CNE-2. Bcl-2 siRNA sensitized CNE-2 by activating the intrinsic apoptotic pathway and PI3-K inhibitors sensitized CNE-2 by activating both intrinsic and extrinsic pathways. Further, simultaneously targeting Bcl-2 and Akt was found to be a more efficient approach to prevent TRAIL resistance in CNE-2 and this synergistic effect happened at the level of Bid downstream. At last, the combinative treatments did not enhance toxicity of TRAIL in MRC5, a human benign fibroblast cell line. This study suggests that simultaneously targeting Bcl-2 and Akt pathway might be effective in preventing TRAIL resistance of NPC cells." @default.
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- W2004142821 date "2012-02-01" @default.
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- W2004142821 title "Simultaneously Targeting Bcl-2 and Akt Pathways Sensitizes Nasopharyngeal Carcinoma to Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand" @default.
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- W2004142821 doi "https://doi.org/10.1089/cbr.2011.1031" @default.
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