紫禁素2调节长非编码RNA和基因转录,以加速瘤发生
Tianyi Ding1,2,3, Haowen Xu1,2,3, Xiaoyu Zhang1,2,3
1State Key Laboratory of Cardiology and Medical Innovation Center, Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Research Center for Stem Cells, School of Life Science and Technology, Tongji University, Shanghai, 200092, China.
Nature communications
|September 27, 2024
概括
禁忌素2 (PHB2) 通过激活瘤长非编码RNA (lncRNA) CANT2并抑制瘤抑制剂CCBE1.1,驱动黑色素瘤. 这种表观遗传调节加速了癌症的生长和转移.
科学领域:
- 分子生物学分子生物学
- 癌症生物学 癌症生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 异常长非编码RNAs (lncRNAs) 和编码基因与瘤发展有关.
- 精确的协调机制驱动这种现象在瘤发生还没有完全理解.
研究的目的:
- 阐明Prohibitin 2 (PHB2) 在协调lncRNA和在黑色素瘤瘤发生过程中编码基因转录中的作用.
主要方法:
- 研究了PHB2与CANT2 lncRNA和CCBE1基因促进者的相互作用.
- 利用技术评估基因转录,基因组修饰 (H3K4三甲基化,H3K27乙化),以及它们对黑色素瘤细胞生长和转移的 in vitro 和 in vivo 影响.
主要成果:
- PHB2通过将MLL2招募到其促进体上来激活致癌的lncRNA CANT2,从而增加H3K4三甲基化.
- PHB2 结合了 CANT2,并将 HDAC1 引入了 CCBE1 促进体,从而降低了 H3K27 的乙化,并抑制了其转录.
- 通过PHB2介导的转录失调显著促进黑色素瘤细胞生长和转移.
结论:
- PHB2作为一个关键的表观遗传调节器,调节黑色素瘤中 lncRNA 和编码基因的异常转录.
- 这项研究揭示了一种新的PHB2介导机制,有助于瘤发生,提供潜在的治疗点.
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