小RNAs在孕前的发病过程中的作用
William R Cooke1, Gabriel Davis Jones1, Christopher Wg Redman1
1Nuffield Department of Women's and Reproductive Health, University of Oxford, Level 3 Women's Centre, John Radcliffe Hospital, Oxford, OX3 9DU, UK.
Placenta
|July 2, 2024
概括
孕前是一种严重的妊娠障碍,涉及两个阶段,由胎盘问题驱动. 小RNA是孕前症病原体的关键参与者,影响其发展和进展.
科学领域:
- 产科和妇科 产科和妇科
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 孕前显著导致孕产妇和胎儿死亡率.
- 它呈现为早期发病 (20%) 和晚发病 (80%) 的亚型,每个亚型都有不同的子宫 - 胎盘阻流的原因.
- 这两种亚型都涉及胎盘应激信号进入母体循环,引发临床综合征.
研究的目的:
- 审查了解小RNAs在产前病原发生中的作用的近期进展.
- 突出各种小RNA类的潜在参与,包括微RNA,tRNA片段,snoRNA和piRNA.
- 提出一个新的框架,用于在产前症研究中进行小RNA评估.
主要方法:
- 文献综述,重点关注预先怀孕的小RNA研究.
- 分析不同小RNA类型在胎盘功能障碍和母体反应中的作用.
- 讨论小RNA分类和表达分析当前的局限性.
主要成果:
- 小RNA涉及到关键的孕前过程,如异常的热囊细胞入侵,免疫调节失调和血管新生失衡.
- 转移RNA片段被确定为特定的胎盘应激信号.
- 在孕前症中小RNAs的现有分类可能不足以全面理解.
结论:
- 小RNA在孕前的多阶段病原发生过程中至关重要.
- 对RNA表达的无偏见方法,包括非注释分子和化学修饰,对于未来的研究至关重要.
- 对小RNA配置文件的进一步调查可能会导致预先怀孕症的诊断和治疗策略得到改善.
相关概念视频
RNA Interference
26.0K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
26.0K
siRNA - Small Interfering RNAs
16.7K
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...
16.7K
piRNA - Piwi-interacting RNAs
6.8K
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...
6.8K
Small interfering RNAs (siRNA)
3.5K
3.5K
MicroRNAs
3.0K
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...
3.0K
Experimental RNAi
6.1K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
6.1K


