Alpha lactalbumin as a carrier for doxorubicin

سال انتشار: 1397
محل انتشار: پانزدهمین همایش بیوشیمی فیزیک ایران
کد COI اختصاصی: CBC15_038
زبان مقاله: انگلیسی
تعداد مشاهده: 401

نویسندگان

Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran- Department of Life Science Engineering, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran

Ali Akbar Saboury

Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran

Atieh Ghasemi

Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran

Fatemeh Mamashli

Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran

چکیده

Doxorubicin, a powerful chemotherapeutic agent, is a conventional drug used in treatment of breast cancer. However, hydrophobic nature of doxorubicin makes its medical application difficult. Therefore, introducing a way to facilitate its employment in medicine is desirable. Alpha lactalbumin, the second most abundant milk whey protein, can be a potential carrier for doxorubicin. In the current study, the authors aimed at evaluating the interaction of doxorubicin and alpha lactalbumin to determine alpha lactabumin‟s potential to be used as a carrier for doxorubicin. Isothermal titration calorimetry revealed presence of one binding site for doxorubicin on alpha lactalbumin. Besides, K, ΔH, ΔS, and ΔG values were obtained as 6.7×103 M-1, -6.8 kcal/mol, -5.37 cal/mol K, and -5.22 kcal/mol, respectively, for alpha lactalbumin upon interaction with doxorubicin. Furthermore, no significant change in the fluorescence lifetime values of alpha lactalbumin alone and after interaction with doxorubicin indicated that the interaction between them is static. Moreover, measurement of anisotropy values of alpha lactalbumin before and after interaction with doxorubicin presented decreased values of anisotropy upon interaction with doxorubicin which can be due to formation of protein assemblies after doxorubicin binding. In conclusion, the authors suggest that alpha lactalbumin can serve as a suitable carrier for doxorubicin.

کلیدواژه ها

Alpha Lactalbumin, Doxorubicin, Isothermal Titration Calorimetry, Fluorescence lifetime, Anisotropy

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