top of page
Zidovudine

齊多夫定
Mechanism of action:
Zidovudine 是一種核苷類反轉錄酶抑制劑(nucleoside reverse transcriptase inhibitor),屬於胸苷(thymidine)類似物。Zidovudine 進入宿主細胞後,會經由細胞內的激酶逐步磷酸化,轉化為有活性的 zidovudine-5’-triphosphate。Zidovudine-5’-triphosphate 會與 dTTP 競爭,被 HIV 反轉錄酶嵌入正在合成的病毒 DNA 中。由於 zidovudine 缺乏 3’-OH 基團,一旦被嵌入 DNA,就會導致病毒 DNA 合成中斷。
Reference(s):
1. De Clercq E et al. (1994). HIV resistance to reverse transcriptase inhibitors. Biochem Pharmacol.
2. Yarchoan R et al. (1988). AIDS therapies. Sci Am.
3. Connor EM et al. (1994). Reduction of maternal-infant transmission of human immunodeficiency virus type 1 with zidovudine treatment. Pediatric AIDS Clinical Trials Group Protocol 076 Study Group. N Engl J Med.
bottom of page
