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Nelarabine

奈拉濱
Mechanism of action:
Nelarabine 是一種核苷(nucleoside)類似物。Nelarabine 是前軀藥,經腸胃吸收或靜脈注射後,在體內被腺苷脫氨酶(adenosine deaminase)轉化成 arabinosylguanine。Arabinosylguanine 進入細胞後再透過核苷激酶系統轉化為 Ara-GTP 的活性代謝物。Ara-GTP 會被 DNA 聚合酶誤加入到複製中的 DNA,使 DNA 複製被中斷,細胞停滯在 S 期,最終啟動細胞凋亡。
Reference(s):
1. Buie LW et al. (2007). Nelarabine: a novel purine antimetabolite antineoplastic agent. Clin Ther.
2. DeAngelo DJ et al. (2009). Nelarabine for the treatment of patients with relapsed or refractory T-cell acute lymphoblastic leukemia or lymphoblastic lymphoma. Hematol Oncol Clin North Am.
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