长非编码RNA转录的参考引导基因组组装揭示了与克罗恩病相关的向基因
Meaghan M Kennedy Ng1,2, Sophie Silverstein3, Nina C Nishiyama1,2
1Curriculum in Bioinformatics and Computational Biology, Department of Genetics, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
bioRxiv : the preprint server for biology
|November 19, 2025
概括
研究人员在克罗恩氏病 (CD) 大肠组织中确定了新的长非编码RNA (lncRNA),揭示了它们在免疫反应和新陈代谢中的潜在作用. 一个新的管道有助于发现这些关键分子,以了解CD的发病性.
科学领域:
- 基因组学就是基因组学.
- 分子生物学分子生物学
- 胃肠病学 胃肠病学
背景情况:
- 克罗恩病 (CD) 是一种异质性炎症性肠病 (IBD),没有治愈方法.
- 长非编码RNAs (lncRNAs) 在IBD病变发生过程中未得到充分研究.
- 在相关组织的lncRNA注释和功能表征方面存在挑战.
研究的目的:
- 从CD患者的结肠组织中识别和描述新的lncRNAs.
- 探索 lncRNAs 在 CD 病变发生过程中的功能性作用.
- 在IBD中开发IncRNA发现的管道.
主要方法:
- 简短RNA测序数据的基因组引导对齐,以组装预测的lncRNA转录.
- 将预测的lncRNA与现有的注释集成,以识别差异表达的lncRNA.
- 基因共同表达网络的构建,以与蛋白质编码基因相聚的 lncRNAs.
- 对lncRNA表达与疾病状态和病程的相关性分析.
主要成果:
- 在CD结肠组织中鉴定出98种差异表达的lncRNA,包括新型候选人.
- 发现了与免疫反应,新陈代谢和组织再生途径相关的lncRNA集群.
- 发现了差异性lncRNAs与附近的蛋白质编码基因之间的相关性,例如PITX2.
- 提供了证据证明一种新的lncRNA,PANCR-AS1,可以增强PITX2的表达.
结论:
- lncRNAs是克罗恩病发病的潜在贡献者.
- 开发了一条强大的管道,用于识别患病组织中的新 lncRNA.
- 建立了一个框架,以精确确定与附近基因具有功能相关性的疾病相关 lncRNA.
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