CASPASE DEPENDENT APOPTOSIS INDUCED BY CLADRIBINE IN THE ESTROGEN RECEPTOR NEGATIVE BREAST CANCER CELL LINE, MDA-MB468
نویسنده
چکیده مقاله:
The purpose of the present study is to investigate the cytotoxicity/apoptotic effect of 2-chloro-2′-deoxyadenosine, cladribine, (2-CdA) in the human breast cancer cell line, MDA-MB468 (estrogen receptor negative, ER−). MTT [3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide] assay, annexin V-Fluorescein/PI and Hoechst 33258 staining were used to detect cytotoxicity and cell apoptosis. The activation of caspase-3 and -9 was assayed using caspase activation assay kits. Gel electrophoresis was performed to detect DNA fragmentation. Treatment of MDA-MB468 cells with different concentrations of 2-CdA (50, 100 and 500 µM) resulted in a significant increase in the cell death. Annexin V-Fluorescein/PI and Hoechst 33258 staining revealed that the cell death was mainly of apoptotic type. DNA laddering profile was also obtained in the treated MDA-MB468 cells using DNA fragmentation analysis. A significant (p
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caspase dependent apoptosis induced by cladribine in the estrogen receptor negative breast cancer cell line, mda-mb468
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عنوان ژورنال
دوره 14 شماره 4
صفحات 303- 310
تاریخ انتشار 2003-12-01
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