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Nasopharyngeal carcinoma (NPC) is an epithelial malignancy of the head and neck and the incidence is higher in Southeast Asia. Tetrandrine (TET) is a bisbenzylisoquinoline alkaloid, a natural product, and exhibits biological activities including action against many human cancer cell lines. However, the molecular mechanism of TET-induced cell apoptosis in(More)
Cyclooxygenase-2 (COX-2) is a recognized target for cancer prevention and possibly treatment. To identify novel inhibitors of COX-2, we developed a high throughput reporter gene assay that utilizes a region of the human COX-2 promoter to drive luciferase expression. A total of 968 extracts from 266 plants were screened. Extracts from 12 plants (4.5%),(More)
Tetrandrine is an alkaloid extracted from a traditional China medicine plant, and is considered part of food therapy as well. In addition, it has been widely reported to induce apoptotic cell death in many human cancer cells. However, the mechanism of Tetrandrine on human nasopharyngeal carcinoma cells (NPC) is still questioned. In our study, we examined(More)
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