RIP140调节转录因子HES1在结肠癌细胞中的振荡表达和线粒生成活性
Nour Sfeir1,2,3,4, Marilyn Kajdan1,2,3,4, Stéphan Jalaguier1,2,3,4
1IRCM, Institut de Recherche en Cancérologie de Montpellier, France.
Molecular oncology
|March 9, 2024
概括
受体相互作用蛋白140 (RIP140) 通过调节Notch/HES1通路来影响结直肠癌. 它会影响HES1表达和结肠癌细胞的增殖,影响患者的存活率.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 细胞信号传递 细胞信号传递
背景情况:
- 众所周知,受体相互作用蛋白140 (RIP140) 通过Wnt信号调节肠道平衡和瘤发生.
- 诺奇信号通路在各种细胞过程中发挥着关键作用,包括癌症的发展.
研究的目的:
- 研究 RIP140 在 Notch/HES1 信号通路中的作用.
- 阐明 RIP140 影响 HES1 基因表达和结直肠癌 (CRC) 细胞增殖的机制.
主要方法:
- 使用CRC细胞系进行体外研究,以评估RIP140对HES1基因表达的影响.
- 在小鼠肠道和人类CRC样本中分析RIP140和HES1表达相关性.
- 调查 RIP140 与 HES1 的相互作用及其对线粒体发生活性和患者存活率的影响.
主要成果:
- 在CRC细胞中,RIP140通过RBPJ/NICD介导的机制通过转录来积极调节HES1基因表达.
- 在小鼠和人类的CRC组织中,RIP140和HES1的表达显著相关.
- RIP140直接与HES1相互作用,抑制其线粒生成活性,并影响CRC患者的存活率.
- RIP140对HES1转录具有双重作用,当Notch通路高度激活时抑制它.
结论:
- RIP140是结直肠癌中Notch/HES1信号通路的关键调节者.
- RIP140调节HES1基因表达和结肠癌细胞增殖,影响患者的治疗结果.
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