Dressing Gwen E, Hagan Christy R, Knutson Todd P, Daniel Andrea R, Lange Carol A
Department of Medicine (Division of Hematology, Oncology, and Transplantation) and Pharmacology, Masonic Cancer Center, University of Minnesota, MMC 806, Minneapolis, Minnesota 55455, USA.
Endocr Relat Cancer. 2009 Jun;16(2):351-61. doi: 10.1677/ERC-08-0281. Epub 2009 Apr 8.
Progesterone receptors (PR), members of the nuclear receptor superfamily, function as ligand-activated transcription factors and initiators of c-Src kinase and mitogen-activated protein kinase signaling. Bidirectional cross-talk between PR and mitogenic protein kinases results in changes in PR post-translational modification, leading to alterations in PR transcriptional activity and promoter selectivity. PR-induced rapid activation of cytoplasmic protein kinases insures precise regulatory input to downstream cellular processes that are dependent upon nuclear PR, such as cell-cycle progression, and pro-survival signaling. Here, we review interactions between PR and mitogenic protein kinases and discuss the consequences of specific post-translational modifications on PR action in breast cancer cell-line models.
孕酮受体(PR)是核受体超家族的成员,作为配体激活的转录因子以及c-Src激酶和丝裂原活化蛋白激酶信号传导的启动子发挥作用。PR与促有丝分裂蛋白激酶之间的双向串扰导致PR翻译后修饰的变化,进而引起PR转录活性和启动子选择性的改变。PR诱导的细胞质蛋白激酶的快速激活确保了对依赖于核PR的下游细胞过程(如细胞周期进程和促生存信号传导)进行精确的调节输入。在此,我们综述PR与促有丝分裂蛋白激酶之间的相互作用,并讨论特定翻译后修饰对乳腺癌细胞系模型中PR作用的影响。