Oncotarget:下调PPA1对治疗上皮性卵巢癌具有积极作用

2017-07-27 Emma MedSci原创

PPA1,即Inorganic Pyrophosphatase,无机焦磷酸酶,简称为焦磷酸酶,是一种催化一分子焦磷酸盐转化为两分子磷酸盐离子的酶,其在骨形成、脂代谢、DNA合成以及其他生物化学转化中扮演重要角色。

PPA1,即Inorganic Pyrophosphatase,无机焦磷酸酶,简称为焦磷酸酶,是一种催化一分子焦磷酸盐转化为两分子磷酸盐离子的酶,其在骨形成、脂代谢、DNA合成以及其他生物化学转化中扮演重要角色。PPA1活性是细胞无机焦磷酸盐水平的关键决定因素,有研究表明,PPA1表达与几种实体瘤的生长相关。

为了研究这种关系,研究人员首先检测了人上皮性卵巢癌(EOC)样本中的PPA1表达,发现PPA1在EOC患者的肿瘤中过表达,并且高水平PPA1与EOC患者的进展分级、阶段和生存率差相关。在EOC中对PPA1功能检测显示,沉默PPA1在体外和体内抑制EOC迁移、EMT( epithelial-mesenchymal transition ,具有极性的上皮细胞转换成为具有活动能力的间质细胞并获得侵袭和迁移能力的过程)和转移。此外,PPA1可以促进β-连环蛋白的去磷酸化和易位。这些结果表明,沉默PPA1通过抑制Wnt/β-连环蛋白信号通路抑制EOC转移,通过一些治疗方法下调PPA1可能会对治疗EOC具有积极作用。

原始出处:
doi: 10.18632/oncotarget.19346.

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    2018-05-12 闆锋旦
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    2017-07-27 明天会更好!

    谢谢分享,很不错。

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