Abstract
Methotrexate (MTX) is one of the main chemotherapeutic agents that has determined the high effectiveness of protocols for the treatment of acute lymphoblastic leukemia and non-Hodgkin lymphomas. The reverse side of the high anti-tumor activity of MTX is the adverse reactions, which require accompanying preventive therapy. But even modern accompanying therapy in some cases does not avoid severe toxicity from the skin and mucous membranes, nervous system, kidneys, liver. MTX pharmacokinetics exhibits significant individual variability, which may be a reflection of genetic variability. Numerous pharmacogenetic studies have evaluated the effect of polymorphism of various genes involved in MTX metabolism on MTX pharmacokinetics and the development of toxic manifestations in order to improve patient outcomes and decrease drug toxicity. This review presents impact of key metabolic MTX genes (ATIC, DHFR, GGH, FPGS, MTHFR, MTR, MTRR, TYMS) and transporter proteins genes (ABCB1, ABCG2, ABCC2, ABCC4, SLC19A1, SLCO1B1) in the development of MTX side effects. Polymorphic markers in SLCO1B1 gene have the most influence with MTX pharmacokinetic.
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