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长非编码RNA编排小鼠心脏发育的单细胞转录景观

Thaís A R Ramos^1,2,3, Sebastián Urquiza-Zurich¹, Soo Young Kim⁴

¹Advanced Center for Chronic Diseases (ACCDiS), Faculty of Chemical & Pharmaceutical Sciences & Faculty of Medicine, Universidad de Chile, Santiago, Chile.

Cell death & disease

|December 18, 2023

概括

研究人员使用先进的计算方法确定了参与心脏发育和心血管疾病的新型长非编码RNA (lncRNA) 标记物. 这项研究定义了心脏细胞类型,并突出了 lncRNAs.

科学领域:

基因组学和分子生物学
心血管研究研究心血管研究
计算生物学计算生物学

背景情况:

长非编码RNAs (lncRNAs) 是哺乳动物中的关键转录单元.
lncRNAs与器官发育和心血管疾病 (CVD) 病原发生有关.
了解lncRNA在心脏发育中的作用需要复杂的分析方法.

研究的目的:

定义与心脏发育和心血管疾病相关的共同表达模块.
在心脏细胞群中识别新的分子标记物,包括lncRNAs.
描述心肌细胞亚群及其基因表达特征.

主要方法:

利用生物信息学方法,机器学习,系统生物学和统计分析.
分析了不同发育时间点的基因共同表达模式.
在特定心肌细胞亚群中确定了差异表达的转录.

主要成果:

确定了八种不同的心脏细胞类型和几个新的编码,lncRNA和pcRNA标记.
发现了两个心肌细胞亚群,具有不同的共同表达的基因模块.
这些模块对涉及线粒体功能,心脏发育和心血管疾病的基因进行了丰富.

结论:

特定的 lncRNA 在哺乳动物心脏发育中起着重要作用.
同表达模块化分析是一种强大的方法来定义细胞类型的功能.
这项研究为心脏发育和疾病的分子格局提供了新的见解.

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相关概念视频

lncRNA - Long Non-coding RNAs

lncRNA - Long Non-coding RNAs

In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...