Abstract
Gene amplification is responsible both for dihydrofolate reductase induced methotrexate resistance, and for the P-glycoprotein encoding multigene family induced multidrug resistance. The 6 pairs of hydrophobic regions of the P-glycoprotein fold up in a snake-like structure through the lipidic layers of the cell membrane. Other detoxification mechanisms include the glutathione S-transferase ‘pi’, but without gene amplification.
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Pauly, M., Ries, F. & Dicato, M. Genetic aspects of multidrug resistance. Med Oncol. & Tumor Pharmacother. 9, 21–24 (1992). https://doi.org/10.1007/BF02989649
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DOI: https://doi.org/10.1007/BF02989649