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Mitoxantrone

米托蒽醌

Mechanism of action:

Mitoxantrone 是一種蒽醌類(anthracenedione)衍生物。Mitoxantrone 會阻斷拓樸異構酶 II(topoisomerase II)的正常功能。正常情況下,拓樸異構酶 II 會暫時造成 DNA 雙股斷裂,再迅速重新接合,以解除 DNA 超螺旋。Mitoxantrone 會穩定 DNA 已被切斷但尚未重新接合的狀態,阻止 DNA 再接合,使 DNA 雙股斷裂累積並增加細胞修復壓力,導致細胞週期停滯與凋亡。

​Reference(s):

Fox EJ et al. (2006). Management of worsening multiple sclerosis with mitoxantrone: a review. Clin Ther.

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