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Stavudine

司他夫定

Mechanism of action:

Stavudine 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。Stavudine 進入宿主細胞後,經由細胞內的激酶逐步磷酸化,轉化為具活性的 stavudine triphosphate。Stavudine triphosphate 會與dTTP 競爭,被 HIV 反轉錄酶誤認並納入正在合成的病毒 DNA 中。由於 stavudine 分子缺乏 3’-OH 基團,導致病毒 DNA 合成立即停止。

​Reference(s):

1. Lea AP et al. (1996). Stavudine: a review of its pharmacodynamic and pharmacokinetic properties and clinical potential in HIV infection. Drugs. 


2. De Clercq E et al. (2005). Emerging anti-HIV drugs. Expert Opin Emerg Drugs.

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