在非小细胞肺癌中,与免疫相关途径相关的cis和trans调节性长非编码RNA的整合分析
Yinqiang Liu1, Hongjv Yang1, Guoli Lv1
1Department of Geriatric Thoracic Surgery, the First Hospital of Kunming Medical University, Kunming, China.
Biochemistry and biophysics reports
|November 14, 2024
概括
这项研究使用生物信息学揭示了非小细胞肺癌 (NSCLC) 中的新型长非编码RNA (lncRNA) 机制. 它确定了关键的lncRNA及其调节网络,为NSCLC瘤生物学提供了新的见解.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 长非编码RNA (lncRNAs) 在非小细胞肺癌 (NSCLC) 的发展和进展中发挥着关键作用.
- 在NSCLC中lncRNAs的精确分类和潜在机制仍然不完全理解.
- 这项研究旨在通过全面的生物信息学分析,阐明 lncRNAs 在 NSCLC 中的复杂作用.
研究的目的:
- 在NSCLC中识别差异表达的lncRNA和信使RNA (mRNA).
- 探索调节网络,包括 cis 和 trans 调节, lncRNA-转录因子 (TF) -mRNA 相互作用,以及 lncRNA-miRNA-mRNA 竞争的内源RNA (ceRNA) 网络.
- 在大型NSCLC队列中调查已识别的转录的预后价值.
主要方法:
- 在配对的NSCLC瘤和相邻的正常组织中对lncRNAs和mRNAs进行微阵列分析.
- 生物信息分析包括基因组丰富分析 (GSEA),基因和基因组的京都百科全书 (KEGG) 和基因本体学 (GO) 功能注释.
- 构建 lncRNA-mRNA 同表达网络和 lncRNA-miRNA-mRNA ceRNA 网络.
- 用癌症基因组图谱 (TCGA) RNA-seq数据验证差异表达的转录及其预后意义.
主要成果:
- 在NSCLC中鉴定了391个差异表达的lncRNA和344个差异表达的mRNA.
- 发现了43,557个协同表达的lncRNA-mRNA对,包括cis调节,lncRNA-TF-mRNA和跨调节相互作用.
- 构建了8701个lncRNA-miRNA-mRNA ceRNA网络,揭示了免疫相关途径的参与.
- 在ceRNA和跨调节网络中识别了六个关键转录 (NTF4,PTPRD-AS,ITGA11,HID1-AS1,RASGRF2-AS1和TBX2-AS1).
结论:
- 这项研究为NSCLC中lncRNAs的调节功能提供了重要的见解.
- 已识别的lncRNA及其相关网络为NSCLC的发病学提供了新的视角.
- 这些发现有助于更深入地了解lncRNA在瘤生物学中的作用,并可能为未来的治疗策略提供信息.
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