泰国/NCOA2通过直接准转录因子Ci/GLI来抑制刺路径
Xuan Yu1, Xinyu Wang1, Kaize Ma1
1College of Life Sciences, Shandong Agricultural University, Tai'an 271018, China.
概括
转录辅助因子Taiman (Tai) 通过与Cubitus interruptus (Ci) 相互作用来抑制刺 (Hh) 途径. 这种相互作用减少了Ci.
科学领域:
- 分子生物学分子生物学
- 发育生物学 发展生物学
- 细胞信号传递 细胞信号传递
背景情况:
- 刺 (Hh) 途径对细胞过程至关重要,其失调与人类疾病有关.
- 转录因子Cubitus interruptus (Ci) 的调节是Hh通路活动的关键.
- 核Ci活动的控制机制尚不清楚.
研究的目的:
- 为了调查子 (Hh) 路径的新型调节者.
- 阐明转录辅因子Taiman (Tai) 在Hh信号传递中的功能.
- 了解核活动的调节 Cubitus interruptus (Ci) 活动.
主要方法:
- 进行了表皮分析,以确定泰和之间的功能关系.
- 研究了蛋白质与蛋白质的相互作用,以评估Tai和Ci与向基因促进体的结合.
- 在哺乳动物细胞中检查了调节机制的保存.
主要成果:
- 泰曼 (Tai) 通过干扰信号响应而不是分泌而作为Hh通路的抑制剂.
- 泰功能与Cubitus interruptus (Ci) 平行,减少Ci活动并抵消Ci诱导的过度生长.
- 泰与Ci相互作用,降低其促进体结合;Hh信号减弱了这种相互作用,释放了Ci的抑制.
- 涉及Tai和Ci的已识别的调节机制在哺乳动物细胞中得到保存,NCOA2被确定为一个功能性正统.
结论:
- 泰曼 (Tai) 是一种新型的对 (Hh) 途径的抑制剂.
- 泰通过直接相互作用调节核Cubitus中断 (Ci) 的转录活动.
- 这种保存的调节机制为调节Hh通路活性提供了一个新的目标.
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