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表观遗传阅读器ZMYND11非正规功能限制了HNRNPA1介导的压力颗粒形成和瘤活性
Cheng Lian1, Chunyi Zhang1, Pan Tian1
1Fudan University Shanghai Cancer Center & MOE Key Laboratory of Metabolism and Molecular Medicine and Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences, and Institutes of Biomedical Sciences, Shanghai Medical College, Fudan University, Shanghai, China.
Signal transduction and targeted therapy
|September 28, 2024
概括
含有MYND类型的指11 (ZMYND11) 通过结合甲基化HNRNPA1作为瘤抑制剂,防止癌细胞生长. 抑制破坏这种相互作用的PRMT5显示出治疗ZMYND11低癌症的前景.
科学领域:
- 在瘤学瘤学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 表观遗传读者调节基因表达,在癌症预后和治疗中至关重要.
- 已知含有11 (ZMYND11) 的MYND型指可读取H3.3K36me3,但其在癌症中的作用尚未完全理解.
研究的目的:
- 研究ZMYND11在癌症中的功能和机制.
- 探索ZMYND11作为治疗目标的潜力.
主要方法:
- 在各种癌症中分析ZMYND11表达.
- 在体外和体内实验中评估ZMYND11枯竭对瘤生长,迁移,入侵,形成和转移的影响.
- 涉及ZMYND11与HNRNPA1的相互作用及其甲基化状态的机制研究.
- 通过PRMT5抑制对ZMYND11-HNRNPA1相互作用中断的评估.
- 在具有低ZMYND11表达的瘤中评估PRMT5抑制剂的敏感性.
主要成果:
- ZMYND11下调在癌症中很常见,并且与糟糕的结果有关,特别是在前列腺癌中.
- ZMYND11的枯竭增强了瘤细胞的增殖,迁移,入侵和转移.
- ZMYND11结合了阿尔金-194-甲基化HNRNPA1,将其保留在细胞核中,并防止了细胞质压力颗粒的形成.
- ZMYND11抑制了由HNRNPA1驱动的PKM2/PKM1比率的增加,从而抑制了侵袭性瘤表型.
- 抑制PRMT5会破坏ZMYND11-HNRNPA1的相互作用,低ZMYND11表达的瘤对PRMT5抑制剂敏感.
结论:
- ZMYND11通过作为非素甲基化读者来作为瘤抑制剂.
- 由氨酸甲基化调节的ZMYND11-HNRNPA1相互作用对于抑制瘤进展至关重要.
- ZMYND11及其与HNRNPA1的相互作用代表了癌症治疗的新型治疗标和生物标志物,PRMT5抑制剂在ZMYND11低瘤中显示出潜在的有效性.
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