کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
2579763 1561583 2016 10 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Increased proapoptotic activity of electron beam irradiated doxorubicin and epirubicin in multidrug-resistant human leukemic cells
ترجمه فارسی عنوان
فعالیت proapoptotic ارتقایافته doxorubicin و epirubicin تحت تابش پرتوالکترونی در سلول‌های بدخیم انسانی مقاوم به چنددارو
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کلمات کلیدی
Anthracyclines؛ تابش پرتوالکترونی؛ مقاومت به چنددارو؛ آپوپتوز؛ لنفوبلاستیک حاد leukemiaDAU، دانوروبیسین؛ DOX، دوکسوروبیسین؛ EPI، epirubicin؛ IR، تحت تابش؛ NIR، غیرتحت تابش؛ MDR، مقاوم به چنددارو
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بهداشت، سم شناسی و جهش زایی
چکیده انگلیسی


• E-beam irradiation increases potency of DOX and EPI against MDR leukemic cells.
• Increased activity of irradiated drugs is related to enhancement of apoptosis.
• Apoptosis induced by irradiated drugs was caspases-dependent.
• Activity of the irradiated drugs was related to the increase in Bax/Bcl-2 ratio.

This study evaluated the effect of electron beam irradiation on the cytotoxic activity of anthracycline antibiotics such as doxorubicin (DOX), epirubicin (EPI), and dunorubicin (DAU) in human acute lymphoblastic leukemia cell line CCRF-CEM and its multidrug-resistant variant CCRF-VCR1000 cell line characterized by the overexpression of ABCB1 gene. Drugs were irradiated at doses of 10 and 25 kGy. Data from EPR studies proved that the highest concentration of free radicals was found in DOX and that the number of stable free radicals is always greater after irradiation. In in vitro studies, a higher cytotoxic activity of irradiated DOX and EPI in multidrug-resistant CCRF-VCR1000 cells was observed. This tendency was maintained during the storage at 4 °C for 90 days. Changes in CCRF-CEM cells' viability were not dependent on the irradiation status and its dose and were only drug-concentration dependent in all measurement time points. It was proved that increased potency of 25 kGy e-beam irradiated drugs results from their enhanced proapoptotic activity. Apoptotic cell death observed in CCRF-VCR1000 cells treated with irradiated drugs was caspase-8, -9, and -3 dependent and related to the increased Bax/Bcl-2 ratio. No significant differences in the effects of irradiated and non-irradiated drugs on p53 and NFκB transcription factor level and their translocation to the nucleus were noted. Increased activity of the irradiated drugs was not dependent on ABCB1 level.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemico-Biological Interactions - Volume 258, 25 October 2016, Pages 69–78
نویسندگان
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