在发育小鼠透镜中的ncRNAs和mRNAs的整合性转录基因分析
Liyun Zhang1, Xin Liu2, Wei Li3
1Department of Ophthalmology, General Hospital of Central Theater Command, Wuhan, China.
Frontiers in genetics
|June 27, 2024
概括
这项研究揭示了关键的长非编码RNAs (lncRNAs) 和循环RNAs (circRNAs) 参与小鼠透镜发育. 这些非编码RNA为透镜疾病及其潜在的分子机制提供了新的见解.
科学领域:
- 分子生物学分子生物学
- 发展生物学 发展生物学
- 遗传学 遗传学 是一个
背景情况:
- 非编码RNA,包括长非编码RNA (lncRNA) 和圆形RNA (circRNA),在生物过程中起着至关重要的作用.
- 在透镜发育中的lncRNAs和circRNAs的特定功能尚未得到充分理解.
- 了解这些作用对于解决与透镜有关的疾病至关重要.
研究的目的:
- 在小鼠透镜发育过程中全面分析mRNA,lncRNA和circRNA的表达特征.
- 确定参与透镜发育和相关疾病的关键调节分子.
- 构建用于透镜发育的基因调控网络.
主要方法:
- 在多个胚胎和产后发育阶段的小鼠透镜上进行了RNA测序.
- 对mRNAs,lncRNAs和circRNAs进行了差异表达分析.
- 用基因本体学丰富分析来识别相关的生物功能.
- 网络分析 (蛋白质-蛋白质相互作用,mRNA-lncRNA联合表达,circRNA-microRNA-mRNA) 用于预测关键分子.
主要成果:
- 在透镜发育阶段识别了差异表达的mRNA,lncRNA和circRNA.
- 在胚胎发育过程中发现了大量的共同差异表达的转录,包括1831个mRNA,150个lncRNA和13个circRNA.
- 基因本体学分析将DE转录与透镜发育,DNA构造和血管生成联系起来.
- 通过各种网络分析预测候选关键分子.
结论:
- lncRNAs和circRNAs是透镜发育的关键调节者.
- 这项研究提供了对透镜发育和病变发生的基础分子机制的新见解.
- 识别的成绩单和网络作为未来对透镜疾病研究的基础.
相关概念视频
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
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 (lncRNA)...
Ribosome Profiling
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...


