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RhoC GTPase Activation Assay
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MANCR lncRNA通过对核Rho-GEF的Cis调节来调节细胞周期进展和转移
Deepak K Singh1, Zhengmin Cong1, You Jin Song1
1Department of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
Molecular and cellular biology
|August 12, 2024
概括
长非编码RNA MANCR通过调节DNA修复和基因表达来促进三阴性乳腺癌 (TNBC) 的转移. 削弱MANCR可以减少癌细胞的迁移和扩散.
科学领域:
- 基因组学就是基因组学.
- 癌症生物学 癌症生物学
- 在RNA生物学,RNA生物学.
背景情况:
- 非编码DNA的遗传变化,包括长非编码RNA (lncRNAs),在癌症中具有重要意义.
- 在乳腺癌 (BrCa) 中观察到异常的lncRNA表达,但功能作用尚不清楚.
研究的目的:
- 调查异常lncRNA表达在三阴性乳腺癌 (TNBC) 的功能影响.
- 确定涉及TNBC进展和转移的特定lncRNAs.
主要方法:
- 在同位素的2D和3D球形TNBC模型中进行转录组查.
- 在体外测试细胞迁移,入侵和伤口愈合.
- 在体内异种移植实验中进行转移性殖民.
- 转录组分析以确定调节的基因和途径.
主要成果:
- 在TNBC进展过程中,超过1000个lncRNAs显示异常表达.
- 与染色体相关的lncRNA MANCR在转移性TNBC中升高,并因细胞应激而上调.
- MANCR 枯竭减少了细胞迁移,入侵,伤口愈合和肺转移.
- MANCR通过cis调节调节DNA修复,细胞增殖和包括NET1A在内的基因表达.
结论:
- MANCR是TNBC中的转移促进的lncRNA.
- MANCR通过影响转录因子和RNA结合蛋白相互作用来调节与癌症相关的基因.
- 在基因表达的 cis 调节中 MANCR 的作用是其在 TNBC 中转移前活性的关键.
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