Abstract

Multidrug resistance is a major cause of clinical failure of tumor chemotherapy, study on the mechanisms of tumor multidrug resistance has been becoming a fascinating area in the field of tumor chemotherapy. The tumor multidrug resistance is generally considered to be due to the gene mutation, amplification or epigenetic changes that affect the uptake, metabolism or excretion of tumor drugs. P-glycoprotein is a transmembrane glycoprotein encoded by multidrug resistance gene MDR1, which leads to the principal contributor to tumor multidrug resistance. Research suggests that P-glycoprotein can metastasize through the tumor cells, thereby affecting tumor resistance. This article reviews the role of intercellular transfer of P-glycoprotein in tumor drug resistance. Key words: P-glycoprotein; Drug resistance, neoplasm; Membranin transfer

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