کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2602594 1133787 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The interaction between desferrioxamine and hemin: A potential toxicological implication
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
The interaction between desferrioxamine and hemin: A potential toxicological implication
چکیده انگلیسی

Our previous research demonstrated that iron chelating agent desferrioxamine (DFO) could promote iron donor hemin-induced protein oxidation due to the combination of DFO and hemin, but the binding constant and thermodynamic parameters of DFO–hemin interaction have not been examined before. In this study, affinity capillary electrophoresis (ACE) was applied to investigate the interaction between DFO and hemin for the first time. The binding constants of DFO–hemin were calculated to be 104–105 M–1 at various temperatures. The negative value of various thermodynamic parameters (ΔG, ΔS, and ΔH  ) suggested that the binding was spontaneous and the interaction was exothermic and entropically driven. In addition, the high binding affinity between DFO with hemin seemed to be the key factor on promoting hemin- catalyzed formation of cytotoxic radicals, such as superoxide (O2-), which was related to the potential toxicity of this drug in clinical use.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Toxicology in Vitro - Volume 26, Issue 5, August 2012, Pages 732–735
نویسندگان
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