Abstract

Multi-drug resistance (MDR) of cancer cells is a major cause of failure of chemotherapy in cancer treatment. Most MDRs are caused by overexpression of P-glycoprotein (P-gp) which effuses chemotherapeutic agents out of cells. Nano drug delivery systems (NDDS) have been valued for their characteristics including drug targeting, slow-releasing, and long circulation time in the body. Through mechanisms such as non-specific endocytosis and receptor-mediated endocytosis, NDDS can inhibit P-gp at the gene and protein level, leading to improved concentrations of chemotherapeutic drugs in cancer cells, and therefore reverse MDR. Key words: Nanotechnology; P-Glycoprotein; Drug resistance, multiple; Neoplasms

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