在癌症进展中,MUC1-C调节了NEAT1 lncRNA表达和抛光斑形成
Atrayee Bhattacharya1, Keyi Wang1, Johany Penailillo1
1Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
Oncogene
|May 27, 2024
概括
MUC1-C蛋白调节NEAT1和斑形成,这对细胞平衡至关重要. 这一途径在癌症中被采用,驱动药物耐药性和癌症干细胞状态.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 癌症研究 癌症研究
背景情况:
- MUC1基因对于哺乳动物屏障组织的适应至关重要.
- 抛光斑是细胞应激过程中在NEAT1 lncRNA上形成的核体.
- 在此之前,MUC1和NEAT1或虫之间没有任何联系.
研究的目的:
- 研究MUC1-C亚单元在调节NEAT1表达和光斑形成中的作用.
- 阐明了MUC1-C的功能背后的分子机制.
- 确定MUC1-C/NEAT1途径在癌症进展中的重要性.
主要方法:
- 研究了MUC1-C对NEAT1基因表达的影响.
- 分析了NF-κB和MYC信号通路.
- 研究了RNA结合蛋白 (RBPs) 和染色质重塑复合物的招募.
- 评估了对染色质可访问性和基因表达的影响.
- 评估了癌症干细胞状态和耐药性的作用.
主要成果:
- MUC1-C通过NF-κB和MYC激活NEAT1的表达.
- MUC1-C/MYC信号诱导RBP,这对于光斑组装至关重要.
- MUC1-C招募PBAF以提高NEAT1和RBP基因的染色质可访问性.
- MUC1-C和NEAT1形成了一个自我诱导循环,调节炎症和恒温基因.
- 该MUC1-C/NEAT1通路促进癌症干细胞表型和耐药性.
结论:
- MUC1-C是NEAT1,RBPs和的关键调节者.
- 在癌症进展过程中,这种途径被选择,导致恶性瘤.
- 确定了一种将MUC1与细胞应激反应和癌症联系起来的新机制.
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