通过N6甲基氨酸修饰来调节RASSF8稳定性,RBM15促进了肺腺癌细胞的进展
Mingsheng Ma1, Wei Wang2, Li Li3
1Department of Thoracic Surgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, Yunnan,650118, China; Department of Thoracic Surgery, The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunnan,653100, China.
Translational oncology
|June 5, 2024
概括
RNA结合动机蛋白15 (RBM15) 通过调节m6A修饰和抑制RASSF8蛋白水平,促进肺腺癌 (LUAD) 侵袭和迁移. 针对这种RBM15-m6A-RASSF8通路可能会提供一个新的LUAD治疗策略.
科学领域:
- 分子生物学分子生物学
- 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.
背景情况:
- 肺腺癌 (LUAD) 的入侵和迁移是患者死亡率的关键驱动因素.
- 在LUAD进展中,RNA结合基因蛋白15 (RBM15) 和其相关的m6A修饰的作用需要进一步阐明.
研究的目的:
- 研究RBM15影响LUAD细胞入侵和迁移的机制.
- 在RBM15介导途径中识别潜在的治疗点.
主要方法:
- 西方斑点和点斑点测试用于量化RBM15和m6A水平.
- 在LUAD细胞系 (A549,H1734) 中,林氏病毒介导的RBM15的过度表达和敲除.
- 裸体老鼠异种移植模型以评估体内瘤增殖.
- RNA免疫沉降测序 (RIP-Seq) 用于识别相互作用的蛋白质.
主要成果:
- 在LUAD组织中,RBM15和m6A水平显著升高.
- 过度表达RBM15促进了LUAD细胞的入侵,迁移和增殖,而敲除则抑制了这些过程.
- 发现RBM15与RASSF8相互作用,而RBM15介导的m6A修饰降低了RASSF8蛋白水平.
- Knockdown 的 RBM15 抑制了 in vivo 的瘤生长.
- 救援试验表明RASSF8部分调解RBM15对LUAD细胞入侵和迁移的影响.
结论:
- 通过抑制RASSF8蛋白水平,RBM15通过m6A修饰促进LUAD入侵和迁移.
- RBM15-m6A-RASSF8轴代表了抑制LUAD进展的潜在治疗标.
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