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  • Title: Distribution and accumulation of liposomal form of doxorubicin in breast cancer cells of MCF-7 line.
    Author: Rusetskaya NV, Khariton N, Yurchenko OV, Chekhun VF.
    Journal: Exp Oncol; 2011 Jun; 33(2):78-82. PubMed ID: 21716203.
    Abstract:
    AIM: To study distribution and accumulation of liposomal form of doxorubicin in human breast cancer cells of MCF-7 line and Dox-resistant subline MCF-7/Dox. METHODS: High performance liquid chromatography and laser confocal microscopy were used. RESULTS: It has been shown that conventional form of doxorubicin was more efficiently delivered to the MCF-7 cells already after 30 min of incubation amounting to its maximum concentration after 4 h. MCF-7/Dox cells are characterized by lower doxorubicin accumulation rate compared with parental cells. The quantity of accumulated liposomal form of doxorubicin is high in MCF-7 cells, and, what is important, Dox-resistant cells accumulated higher levels of liposomal form of doxorubicin than its conventional form. CONCLUSION: It has been shown that intracellular distribution and accumulation of liposomal forms of doxorubicin in parental and Dox-resistant MCF-7 cells differs from that of conventional doxorubicin.
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