基原蛋白在表观遗传上调节三阴性乳腺癌细胞中的线粒相关 lncRNA MANCR
Kirsten M Tracy1, Shannon Prior2, Willem T Trowbridge1
1Department of Biochemistry, University of Vermont Larner College of Medicine, Burlington, VT 05405.
Critical reviews in eukaryotic gene expression
|December 11, 2023
概括
长非编码RNAMANCR对于三阴性乳腺癌 (TNBC) 细胞生存和基因组稳定性至关重要. 体蛋白质,特别是BRD4,通过对超级增强剂的表观遗传控制来调节MANCR表达.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 癌症研究 癌症研究
背景情况:
- 长非编码RNAs (lncRNAs) 调节基因表达,影响细胞增殖和癌症进展等生物过程.
- lncRNA正在成为乳腺癌研究中的重要目标和生物标志物.
- lncRNA MANCR在三阴性乳腺癌 (TNBC) 中表达,对于攻击性细胞生存和基因组稳定性至关重要.
研究的目的:
- 研究原蛋白蛋白 (BRD2,BRD3,BRD4) 在TNBC细胞中调节lncRNA MANCR的表达中的作用.
- 阐明在TNBC中MANCR的功能背后的表观遗传机制.
主要方法:
- 用小干扰RNA (siRNA) 来消耗TNBC细胞中的BRD2,BRD3和BRD4.
- 现场杂交结合免疫光分析进行,以证实研究结果.
- 表观遗传学分析的重点是基因组修饰和超强增强剂活性.
主要成果:
- 单独或与BRD2和BRD3一起的BRD4被确定为TNBC细胞中MANCR表达的关键调节者.
- 有证据表明,超级增强剂通过基因素修饰通过MANCR响应的表观遗传控制.
- 这些修改对于基因转录至关重要,支持TNBC细胞存活和上皮瘤表型.
结论:
- 基蛋白蛋白,特别是BRD4,在调节三阴性乳腺癌中MANCR表达方面发挥着关键作用.
- 由MANCR调解的超级增强剂的表观遗传修饰对于TNBC细胞生存和进展至关重要.
- MANCR 是一种潜在的治疗标和积极性乳腺癌的生物标志物.
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