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1Cyclin A2:At the crossroads of cell cycle and cell invasion显示文摘Cyclin A2 is an essential regulator of the cell division cycle through the activation of kinases that participate to the regulation of S phase as well as the mitotic entry. However,whereas its degradation by the proteasome in mid mitosis was thought to be essential for mitosis to proceed,recent observations show that a small fraction of cyclin A2 persists beyond metaphase and is degraded by autophagy. Its implication in the control of cytoskeletal dynamics and cell movement has unveiled its role in the modulation of Rho A activity. Since this GTPase is involved in both cell rounding early in mitosis and later,in the formation of the cleavage furrow,this suggests that cyclin A2 is a novel actor in cytokinesis. Taken together,these data point to this cyclin as a potential mediator of cell-niche interactions whose dysregulation could be taken as a hallmark of metastasis.Abdelhalim Loukil Caroline T Cheung Nawal Bendris Bénédicte Lemmers Marion Peter Jean Marie Blanchard 2015World Journal of Biological Chemistry2015,6,4:6
2同源异型盒基因在胶质瘤细胞增殖及迁移侵袭中的作用显示文摘目的研究同源异型盒基因(HOXA5)在胶质瘤增殖及迁移侵袭中的作用。方法采用shRNA干扰技术构建HOXA5低表达胶质瘤细胞系,通过MTT,Transwell和Matrigel方法研究干扰HOXA5表达后对胶质瘤细胞增殖和侵袭迁移的影响。结果与对照组细胞相比,干扰HOXA5表达后能够显著抑制胶质瘤细胞的增殖和运动侵袭能力(P<0.01)。结论 HOXA5可能在胶质瘤的发生发展中具有重要的作用,其机制与促进细胞的增殖和侵袭迁移有关。刘鹏 冉雯雯 吴泽玉 伦鹏 孟庆海 2015中国老年学杂志2015,35,17:1
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