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Deferoxamine

去鐵胺
Mechanism of action:
Deferoxamine 是一種鐵螯合劑(iron chelating agent),屬於三羥肟酸鐵載體(trihydroxamic acid siderophore),可與鐵形成六齒配位八面體複合物(hexadentate octahedral complex)。鐵與 deferoxamine 結合後不再參與芬頓反應(Fe²⁺ + H₂O₂ → •OH + OH⁻ + Fe³⁺),因此可減少自由基形成與氧化性細胞損傷。鐵-deferoxamine 複合物之後主要經腎臟隨尿液排出。
Reference(s):
1. Elihu N et al. (1998). Chelation therapy in cardiovascular disease: ethylenediaminetetraacetic acid, deferoxamine, and dexrazoxane. J Clin Pharmacol.
2. Hershko C et al. (2005). Objectives and mechanism of iron chelation therapy. Ann N Y Acad Sci.
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