抗葉酸劑
抗葉酸劑(Antifolate),又稱為葉酸拮抗劑,是一類以葉酸(維生素B9)代謝為靶點的製劑,臨床上用途包括腫瘤化療、治療病原微生物感染(如磺胺類藥物[1])等[2]。葉酸作為一部分酶(如部分甲基轉移酶)的輔酶,對絲氨酸、蛋氨酸、胸苷,以及嘌呤等分子的生物合成至關重要。因此,葉酸抑制劑能抑制細胞分裂、DNA與RNA合成,以及蛋白合成等生物學過程。目前抗葉酸劑的主要靶點是二氫葉酸還原酶[2]。
常見的抗葉酸劑
參見
參考文獻
- ^ Daniel Fernández-Villa; Maria Rosa Aguilar; Luis Rojo. Folic Acid Antagonists: Antimicrobial and Immunomodulating Mechanisms and Applications. Int. J. Mol. Sci. 2019, 20 (20) [2021-04-19]. doi:10.3390/ijms20204996. (原始內容存檔於2021-04-25).
- ^ 2.0 2.1 Ivan M. Kompis, Khalid Islam, Rudolf L. Then. DNA and RNA Synthesis: Antifolates. Chem. Rev. 2005, 105: 593–620. PMID 15700958. doi:10.1021/cr0301144.
- ^ Morgan SL, Baggott JE, Alarcon GS. Methotrexate in rheumatoid arthritis: folate supplementation should always be given. BioDrugs. 1997, 8 (1): 164–75. PMID 18020507. doi:10.2165/00063030-199708030-00002.
- ^ Morgan SL, Baggott JE, Lee JY, Alarcon GS. Folic acid supplementation prevents deficient blood folate levels and hyperhomocysteinemia during long-term, low-dose methotrexate therapy for rheumatoid arthritis: Implications for cardiovascular disease prevention. Journal of Rheumatology. 1998, 25 (3): 441–6. PMID 9517760.