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Tenofovir

替諾福韋
Mechanism of action:
Tenofovir 是一種核苷酸類反轉錄酶抑制劑(nucleotide reverse transcriptase inhibitor)。Tenofovir 在細胞內經激酶作用,轉化為活性形式的 tenofovir diphosphate(不是 triphosphate),該分子在功能上類似 dATP,能與 dATP 競爭,被 HIV 反轉錄酶或 HBV DNA 聚合酶誤認並摻入正在合成的病毒 DNA 中。因為 tenofovir 缺乏 3’-OH 基團,會讓病毒 DNA 合成停止。
Reference(s):
1. Aloy B et al. (2016). Is Tenofovir Alafenamide Safer than Tenofovir Disoproxil Fumarate for the Kidneys? AIDS Rev.
2. Deeks ED et al. (2018). Bictegravir/Emtricitabine/Tenofovir Alafenamide: A Review in HIV-1 Infection. Drugs.
3. Ray AS et al. (2016). Tenofovir alafenamide: A novel prodrug of tenofovir for the treatment of Human Immunodeficiency Virus. Antiviral Res.
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