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Clofazimine

氯法齊明
Mechanism of action:
Clofazimine 是一種氯苯吩嗪類(riminophenazine)衍生物。Clofazimine 能插入分枝桿菌(Mycobacterium)DNA 的鹼基對之間(intercalation),改變 DNA 的構形,進而抑制 RNA 聚合酶的作用,阻礙 RNA 合成與細菌繁殖。此外,clofazimine 可在分枝桿菌細胞膜中進行氧化還原循環(redox cycling),產生超氧自由基(superoxide radicals)與過氧化氫(H₂O₂),導致細胞膜脂質過氧化使細菌死亡。
Reference(s):
1. Kumar H et al. (2020). Leprosy drug clofazimine activates peroxisome proliferator-activated receptor-gamma and synergizes with imatinib to inhibit chronic myeloid leukemia cells. Haematologica.
2. Cholo MC et al. (2012). Clofazimine: current status and future prospects. J Antimicrob Chemother.
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