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长非编码RNA DANCR通过miR-34c/E2F1反循环加剧乳腺癌
Shuai Yan1, Lizhi Teng1, Juntong Du1
1Department of Breast Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China.
Molecular medicine reports
|April 5, 2024
概括
长非编码RNA DANCR通过调节miR-34c-5p/E2F1反循环来促进乳腺癌的进展. 准DANCR可能为乳腺癌治疗提供新的治疗策略.
科学领域:
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
- 在瘤学瘤学.
背景情况:
- 长非编码RNAs (lncRNAs) 越来越多地被认为是它们在癌症中的作用.
- 乳腺癌中lncRNA DANCR的特定功能和机制尚未完全阐明.
- 了解DANCR的作用对于开发新的乳腺癌疗法至关重要.
研究的目的:
- 为了研究lncRNA DANCR在乳腺癌中的作用机制.
- 探索DANCR,miR-34c-5p和E2F1.1之间的监管相互作用.
- 评估DANCR对乳腺癌细胞行为的影响.
主要方法:
- 使用lentiviral载体操纵DANCR表达 (敲击和过度表达) 在MCF7和MDA-MB-231乳腺癌细胞中.
- 使用定量PCR和西式斑点测试来测量基因和蛋白质表达水平.
- 染色体免疫沉,双化酶记者测定和光 in situ 杂交被用来验证分子相互作用和局部化.
- 进行细胞增殖,迁移和入侵试验 (EdU,伤口愈合,Transwell) 来评估功能影响.
主要成果:
- DANCR充当竞争的内源RNA,通过隔离乳腺癌细胞中的miR-34c-5p来调节E2F1.
- 发现E2F1通过与其促进区结合来促进DANCR转录.
- 确定了涉及DANCR,miR-34c-5p和E2F1的积极反循环,增强了乳腺癌细胞的增殖,迁移和入侵.
结论:
- DANCR/miR-34c-5p/E2F1反循环在促进乳腺癌进展方面发挥着重要作用.
- 准DANCR为乳腺癌治疗提供了一个潜在的治疗策略.
- 对这一监管网络的进一步研究可能会导致改善临床干预措施.
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