僅用于工業應用或科學研究，不可用于人類或動物的臨床診斷或治療，非藥用.Methotrexate （MTX; alphamethopterin; amethopterin; methylaminopterin; CL-14377; NCIC04671; WR19039; NCI-C04671） is an FDA approved antineoplastic and immunosuppressant drug that belongs to the antimetabolite and antifolate class of drugs. It acts by inhibiting the metabolism of folic acid in activated peripheral T cells. Specifically, methotrexate binds to and inhibits the enzyme dihydrofolate reductase, resulting in inhibition of purine nucleotide and thymidylate synthesis and, subsequently, inhibition of DNA and RNA syntheses.
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