کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10908672 1087799 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanism of the inhibition of leukemia cell growth and induction of apoptosis through the activation of ATR and PTEN by the topoisomerase inhibitor 3EZ, 20Ac-ingenol
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی تحقیقات سرطان
پیش نمایش صفحه اول مقاله
Mechanism of the inhibition of leukemia cell growth and induction of apoptosis through the activation of ATR and PTEN by the topoisomerase inhibitor 3EZ, 20Ac-ingenol
چکیده انگلیسی
The PI3K/Akt signaling pathway is constitutively activated in various leukemias. In the present study, the topoisomerase inhibitor, 3EZ, 20Ac-ingenol, was more effective in inhibiting the growth of BALL-1 cells than that of normal lymphocyte cells. ATM/ATR protein levels were increased, PTEN protein was upregulated, and p-Akt protein was downregulated at early time points after treatment with 3EZ, 20Ac-ingenol. In further experiments, p53 protein expression was increased, and H2AX phosphorylation and p21 protein expression were induced after treatment with 3EZ, 20Ac-ingenol. Moreover, the activation of caspase 3 followed decrease in the Bcl-2/Bax ratio after treatment with 3EZ, 20Ac-ingenol, and accumulation of sub-G1 phase cells was observed in flow cytometry analyses. These data suggest that 3EZ, 20Ac-ingenol-induced DNA damage downregulates p-Akt and upregulates ATR leading to cell cycle arrest and increased apoptosis in BALL-1 cells.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Leukemia Research - Volume 39, Issue 9, September 2015, Pages 927-932
نویسندگان
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