相关实验视频
Updated: Jul 1, 2026

Methyl-binding DNA capture Sequencing for Patient Tissues
Published on: October 31, 2016
构建甲基化驱动的ceRNA网络揭示了瘤异质性,并预测了患者的预后
Xinyu Li1, Chuo Peng1, Hongyu Liu1
1College of Bioinformatics Science and Technology, Harbin Medical University, 194 Xuefu Road, Harbin, Heilongjiang 150081, China.
在癌症中,DNA甲基化显著影响竞争性内源性RNA (ceRNA) 网络. 我们的研究表明,甲基化驱动的lncRNAs (DMlncs) 形成了常见和癌症特异性网络,提供了预后潜力.
科学领域:
- 表观遗传学和基因组学
- 计算生物学和生物信息学
- 癌症研究 癌症研究
背景情况:
- 癌症的发展涉及复杂的遗传和表观遗传相互作用.
- 竞争性内源性RNA (ceRNA) 网络调节基因表达.
- 在ceRNA网络中DNA甲基化的作用尚未完全理解.
研究的目的:
- 开发一种计算方法 (DMceNet) 来分析DNA甲基化对ceRNA网络的影响.
- 研究八种流行癌症类型的甲基化驱动的ceRNA网络.
- 确定参与这些网络的癌症共享和癌症特异性 lncRNA.
主要方法:
- 整合DNA甲基化和转录基因数据.
- 使用DMceNet方法构建甲基化驱动的ceRNA网络.
- 分析 lncRNA 角色,途径参与和细胞水平变异.
主要成果:
- 确定了17种癌症共享差异甲基化lncRNAs (DMlncs),形成一个影响G2/M检查点的共同癌症网络 (CCN).
- 发现了24种特定于癌症的DMlncs构建独特的ceRNA网络.
- 已证明低甲基化驱动的DMlncs (例如PCAT6,MINCR) 破坏了LUAD和STAD中的Wnt信号和亡.
- 在瘤微环境细胞群中揭示了甲基化驱动失调的变异.
- 展示了癌症特异性ceRNA关系的预后潜力,用于患者生存预测.
结论:
- DMceNet有效地描述了DNA甲基化对ceRNA网络的影响.
- 甲基化驱动的lncRNA在共同和特定的癌症调节机制中起着关键作用.
- 这些发现为癌症生物学,调节途径和潜在的治疗点提供了新的见解.
更多相关视频
13:21Comprehensive DNA Methylation Analysis Using a Methyl-CpG-binding Domain Capture-based Method in Chronic Lymphocytic Leukemia Patients
Published on: June 16, 2017
10:41An Integrated Platform for Genome-wide Mapping of Chromatin States Using High-throughput ChIP-sequencing in Tumor Tissues
Published on: April 5, 2018
相关概念视频
Cancers Originate from Somatic Mutations in a Single Cell
Tumor Progression
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Cancers Originate from Somatic Mutations in a Single Cell
Tumor Progression
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...