JBC:宫颈癌细胞增殖机制获进展

2013-08-15 姚红杰 JBC

近日在中科院广州生物医药与健康研究院获悉,该院科学家在抑制宫颈癌细胞增殖机理方面取得新进展。研究成果已在线发表于美国《生物化学杂志》(JBC)上。 据介绍,CCCTC结合因子(以下简称CTCF)是含有11个高度保守的锌指结构蛋白,具有多种生物学功能。已有研究发现CTCF可以抑制原癌基因c-Myc的表达,在细胞生长与增殖以及肿瘤发生等方面都起着非常重要的作用。 最近,广州生物院姚红杰博士和潘光锦

近日在中科院广州生物医药与健康研究院获悉,该院科学家在抑制宫颈癌细胞增殖机理方面取得新进展。研究成果已在线发表于美国《生物化学杂志》(JBC)上。

据介绍,CCCTC结合因子(以下简称CTCF)是含有11个高度保守的锌指结构蛋白,具有多种生物学功能。已有研究发现CTCF可以抑制原癌基因c-Myc的表达,在细胞生长与增殖以及肿瘤发生等方面都起着非常重要的作用。

最近,广州生物院姚红杰博士和潘光锦博士领衔的课题组合作,发现CTCF能够在宫颈癌细胞中正向调控核糖体RNA前体的转录,使宫颈癌细胞变大,并促进其增殖。而且,这种调控作用是RNA聚合酶I依赖型的。

据了解,上述研究可以在降低CTCF表达水平的同时表达凝缩素复合物,从而降低核糖体RNA基因的转录和代谢,最后抑制宫颈癌细胞的增殖。科学家们指出,上述研究将为延缓和治疗宫颈癌提供新思路。

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    2013-09-30 lily1616
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    2013-08-17 yxch36
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    2013-08-17 一闲
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