MethNet:一种强大的方法来识别监管中心及其癌症的远程目标
Theodore Sakellaropoulos1,2, Catherine Do1,2, Guimei Jiang1,2
1Department of Pathology, NYU Grossman School of Medicine, New York, NY, USA.
Research square
|August 14, 2023
概括
通过整合DNA甲基化和基因表达数据,MethNet识别了新的cis-regulatory元素 (CREs). 这些已识别的CRE中心调节多个基因,影响患者的生存,并提供对基因表达和疾病机制的见解.
科学领域:
- 基因组学就是基因组学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 癌症生物学 癌症生物学
背景情况:
- 与非编码区域结合的异常DNA/染色质修饰剂改变了基因调节和疾病表型.
- 识别远端调节元件及其向基因是基因组学中的一个重大挑战.
研究的目的:
- 开发一个计算管道,MethNet,用于发现新的cis-regulatory元素 (CREs).
- 在多种癌症中整合大规模的DNA甲基化和基因表达数据.
- 确定CREs及其在基因表达和疾病中的调节作用.
主要方法:
- 开发MethNet管道,整合DNA甲基化和基因表达数据.
- 在全基因组促进体周围的1Mb区域内分析CREs.
- 使用促销器捕获Hi-C和基于CRISPRi的scRNA Perturb-seq进行验证.
主要成果:
- 梅思网发现了高度排名的CREs集群,称为"枢纽",调节多个基因.
- 这些CRE中心在各种癌症中显著影响患者的生存率.
- 实验验证证确认了已识别的CREs的物理相互作用和功能影响.
结论:
- 梅思网为了解复杂的基因表达机制提供了宝贵的资源.
- 已识别的CREs可以优先考虑非编码性疾病热点进行进一步调查.
- 这种方法增强了对疾病表型至关重要的监管元素的发现.
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