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Cell death dis:SET7/9在乳腺癌病理中的作用及机制

2020-03-17 MedSci原创 MedSci原创

尽管目前的研究已经发现在多种癌症中存在着SET7/9蛋白失调,但在乳腺癌的发生发展过程中,SET7/9的潜在功能及其分子机制目前仍不清楚。

尽管目前的研究已经发现在多种癌症中存在着SET7/9蛋白失调,但在乳腺癌的发生发展过程中,SET7/9的潜在功能及其分子机制目前仍不清楚。

在该研究中,研究人员通过人蛋白质图谱和GEO数据库分析了SET7/9的表达情况,并通过ChIP-seq和定量ChIP分析潜在的机制。研究人员主要评估了SET7/9在不同乳腺癌人群中的表达水平,发现其较高的表达水平在公共数据库中对应着较差的生存时间。

为了进一步探索SET7/9的生理作用,研究人员主要通过功能分析,如CCK-8、集落细胞形成、transwell小室实验以及移植瘤模型。而质谱分析、免疫共沉淀、GST-pulldown实验以及泛素化实验则用于研究SET7/9在乳腺癌中的作用机制。研究人员发现SET7/9能够通过激活RUNX2(Runt相关转录因子2)并能够促进细胞的增殖、迁移及侵袭作用。研究发现TRIM21为SET7/9上游重要的负调节因子,其能够与SET7/9相互作用,并通过蛋白酶体依赖途径增加其泛素化降解作用。

综上,该研究表明,在乳腺癌的发生发展过程中,SET7/9对于调节RUNX2具有促进作用,而TRIM21介导的SET7/9泛素化降解则发挥刹车作用。

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    2020-05-06 docwu2019
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    2020-03-19 cy0328
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    2020-03-17 肿肿

    机制研究离临床仍然有距离,不过与临床结合思考,仍然有帮助的,不能仅仅是纯临床思维,转化思维同样重要

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