Erythroid induction of K562 cells treated with mithramycin is associated with inhibition of raptor gene transcription and mammalian target of rapamycin complex 1 (mTORC1) functions
用 mithramycin 处理的 K562 细胞的红细胞诱导与 raptor 基因转录和哺乳动物雷帕霉素靶蛋白复合物 1 (mTORC1) 功能的抑制有关
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作者:Alessia Finotti, Nicoletta Bianchi, Enrica Fabbri, Monica Borgatti, Giulia Breveglieri, Jessica Gasparello, Roberto Gambari
| 期刊: | Pharmacological Research | 影响因子: | 9.100 |
| 时间: | 2015 | 起止号: | 2015 Jan:91:57-68. |
| doi: | 10.1016/j.phrs.2014.11.005 | 方法学: | WB |
| 研究方向: | 信号转导 | 细胞类型: | 红细胞 |
| 信号通路: | mTOR | |
Results
(a) MTH strongly inhibits the interactions between Sp1 and Sp1-binding sites of the raptor promoter (studied by electrophoretic mobility shift assays, EMSA); (b) MTH strongly reduces the recruitment of Sp1 transcription factor to the raptor promoter in intact K562 cells (studied by chromatin immunoprecipitation experiments, ChIP); (c) Sp1 decoy oligonucleotides are able to specifically inhibit raptor mRNA accumulation in K562 cells. In
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