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Over-expression of FoxM1 is associated with adverse prognosis and FLT3-ITD in acute myeloid leukemia
Long-long Liu Dong-hua Zhang Xia Mao Xin-hua Zhang Bing Zhang 《Biochemical and biophysical research communications》2014
Forkhead box M1 (FoxM1) drives cell cycle progression and the prevention of growth arrest and is over-expressed in many human malignancies. However, the characteristics of FoxM1 in acute myeloid leukemia (AML) are not clearly understood. We investigated the expression level of FoxM1 and analyzed the correlation of FoxM1 expression with AML patient characteristics and prognoses. Changes in FoxM1 expression were detected after MV4–11 cells, which have an internal tandem duplication (ITD) of the fms-like tyrosine kinase 3 gene (FLT3-ITD), and control THP1 cells (encoding wild-type FLT3) were treated with the FLT3 receptor tyrosine kinase inhibitor AC220 (quizartinib) or FLT3 ligand (FL). Finally, we determined the apoptosis rates after the addition of the FoxM1 inhibitor thiostrepton (TST) to AML cells with or without FLT3-ITD. The expression of FoxM1 in AML patients was correlated with the presence of FLT3-ITD, genetic groups, and possibly overall survival. Inhibition of FLT3-ITD by AC220 down-regulated FoxM1 expression in MV4–11 cells, and stimulation of FLT3 by FL up-regulated FoxM1 expression in MV4–11 and THP1 cells. TST induced the apoptosis of MV4–11 and THP1 cells in a dose-dependent manner. Thus, FoxM1 is a potential prognostic marker and a promising therapeutic target in AML. 相似文献
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FoxM1是一种原癌基因。它也是癌发生、发展密切相关的重要的转录因子。Fox M1是Forkhead Box转录因子家族重要成员,定位于染色体12p13.3,特异性表达于增殖期细胞中,在细胞终末分化时消失,是一个典型的与细胞增殖相关的转录因子,在细胞G/S及G/M期转换过程中发挥重要作用。它具有Fox M1A、B和C三种剪接异构体。Fox M1B和C在癌组织中高表达,发挥转录激活、促癌发生和发展的作用,而Fox M1A在癌组织中低表达,发挥转录抑制功能。癌组织中Fox M1B/C的优先选择对于Fox M1发挥促癌作用非常关键。因此对这一现象的成因即Fox M1癌相关选择性剪接机制的研究非常重要。 相似文献
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《Cell cycle (Georgetown, Tex.)》2013,12(20):3425-3427
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Laoukili J Kooistra MR Brás A Kauw J Kerkhoven RM Morrison A Clevers H Medema RH 《Nature cell biology》2005,7(2):126-136
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《Cell cycle (Georgetown, Tex.)》2013,12(18):3370-3372
Nanoparticle-encapsulated thiazole antibiotic, thiostrepton, has been shown to be an effective agent for inhibiting tumor growth in solid tumor models through the inhibition of proteasomal activity by the induction of apoptosis in cancer cells. Here, we show the efficacy of thiostrepton-micelles in inhibiting tumor growth in a DEN/PB-induced liver cancer model. We also demonstrate an enhanced anticancer effect of the combination treatment of thiostrepton with bortezomib, another proteasome inhibitor in this liver cancer model. 相似文献
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Ming Wang Marianna Halasi Kasim Kabirov Aryamitra Banerjee Jennifer Landolfi Alexander V. Lyubimov Andrei L. Gartel 《Cell cycle (Georgetown, Tex.)》2012,11(18):3370-3372
Nanoparticle-encapsulated thiazole antibiotic, thiostrepton, has been shown to be an effective agent for inhibiting tumor growth in solid tumor models through the inhibition of proteasomal activity by the induction of apoptosis in cancer cells. Here, we show the efficacy of thiostrepton-micelles in inhibiting tumor growth in a DEN/PB-induced liver cancer model. We also demonstrate an enhanced anticancer effect of the combination treatment of thiostrepton with bortezomib, another proteasome inhibitor in this liver cancer model. 相似文献
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Forkhead box M1 regulates the transcriptional network of genes essential for mitotic progression and genes encoding the SCF (Skp2-Cks1) ubiquitin ligase 总被引:8,自引:0,他引:8
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Wang IC Chen YJ Hughes D Petrovic V Major ML Park HJ Tan Y Ackerson T Costa RH 《Molecular and cellular biology》2005,25(24):10875-10894