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P-glycoprotein (P-gp), an important efflux transporter, is encoded by the MDR1 class of genes and is a central element of the multidrug resistance (MDR) phenomenon in cancer cells. In the present study, we investigated whether mollugin, purified from roots of Rubica cordifolia L., down-regulated MDR1 expression in MCF-7/adriamycin (MCF-7/adr) cells, a human breast multidrug-resistant cancer cell line...
Piperine is a major component of black (Piper nigrum Linn) and long (Piper longum Linn) peppers, and is widely used as a traditional food and medicine. It also exhibits a variety of biological activities, which include antioxidant, anti-tumor and anti-pyretic properties. In the present study, we investigated the inhibitory effects of piperine on phorbol 12-myristate 13-acetate (PMA)-induced cyclooxygenase-2...
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