人类生殖过程和疾病中的长非编码RNA
Le Zhang1, Hailong Sun1, Xiujuan Chen1
1Center for Reproductive Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China.
Molecular reproduction and development
|January 29, 2024
概括
长非编码RNAs (lncRNAs) 在人类繁殖中起着至关重要的作用,影响生育能力. 了解lncRNA机制为治疗不孕症和提高出生率提供了新的策略.
科学领域:
- 生殖生物学 生殖生物学
- 分子遗传学 分子遗传学
- 基因组学就是基因组学.
背景情况:
- 不孕症影响着全球大量人口,辅助生殖出生率低于30%.
- 目前对生殖机制的理解不足以优化活产率和植入成功.
- 长非编码RNAs (lncRNAs) 越来越多地被认为是它们在各种生物过程中的调节作用.
研究的目的:
- 审查 lncRNAs 在人类主要生殖过程中的功能和机制.
- 突出 lncRNAs 作为不孕症诊断生物标志物的潜力.
- 探索 lncRNAs 作为改善不孕症治疗结果的治疗点.
主要方法:
- 文献综述侧重于人类生殖中的lncRNAs.
- 综合目前关于 lncRNA 功能在精子生成, oogenesis 和早期胚胎发育中的研究.
- 对研究 lncRNA 在精子和卵泡成熟,胚胎植入和整体生殖成功中的作用的分析.
主要成果:
- lncRNAs参与调节精子生成,精子质量和卵泡发育.
- lncRNAs影响胚胎发育和植入过程.
- 特定的 lncRNAs 显示出作为诊断不孕症的分子指标的潜力.
结论:
- lncRNAs是人类生殖功能的关键调节者.
- lncRNAs代表了各种不孕症的有前途的诊断生物标志物.
- 向lncRNAs为增强生育能力和改善辅助生殖结果提供了一个新的治疗途径.
相关概念视频
lncRNA - Long Non-coding RNAs
8.6K
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...
8.6K
Types of RNA
5.8K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
5.8K
Non-LTR Retrotransposons
11.5K
As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...
11.5K
piRNA - Piwi-interacting RNAs
6.9K
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
6.9K
RNA Splicing
56.4K
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
56.4K
siRNA - Small Interfering RNAs
16.8K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
16.8K


