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Updated: Jul 19, 2025

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Identification of Circular RNAs using RNA Sequencing
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循环稳定的内基RNA具有独特的生物特征,在膀癌中受到放松
Asta M Rasmussen1,2,3, Trine Line H Okholm4, Michael Knudsen1,2
1Department of Clinical Medicine, Aarhus University, Aarhus 8000, Denmark.
NAR cancer
|August 9, 2023
概括
稳定的内基序列RNAs (sisRNAs) 具有调节作用. 这项研究描述了膀癌中的圆形sisRNAs,发现了不同的子类,并确定了sisHNRNPK作为潜在的预后生物标志物.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 癌症研究 癌症研究
背景情况:
- 内部鱼以前被认为是非功能拼接副产品.
- 新出现的证据表明,稳定的内基衍生品具有监管功能.
- 关于稳定的内基RNA在健康和疾病中的特征和作用的信息有限.
研究的目的:
- 描述和表征循环稳定的内基序列RNA (sisRNAs).
- 在健康和膀癌组织中研究sisRNAs的分布和表达.
- 在sisRNAs中识别潜在的诊断或预后生物标志物.
主要方法:
- 利用了来自膀癌 (n=457) 和健康组织 (n=46) 的总RNA-Seq数据.
- 分析分离细胞系 (n=5) 来评估细胞局部化.
- 采用生物信息分析来描述sisRNA子类,保存和差异表达.
主要成果:
- 确定了不同的子类:全长的内生圆圈和稳定的拉里亚.
- 观察到膀癌中内生圈的比例明显高 (∼45%) 与健康组织 (0-20%).
- 发现了特定组织的表达模式,并在早期膀癌中确定了九种差异表达的sisRNA,sisHNRNPK与无进展生存相关.
结论:
- 循环sRNAs表现出独特的生物特征和不同的子类.
- 一些sisRNAs,包括sisHNRNPK,sisWDR13和sisMBNL1,显示出作为功能或临床生物标志物的希望.
- 对sisRNAs的进一步研究可能会揭示它们在膀癌中的作用的新见解.
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