在HIV和HTLV的转录调节和潜伏期间的微RNA和长非编码RNA
Sergio P Alpuche-Lazcano1,2,3, Robert J Scarborough1,4, Anne Gatignol5,6,7,8
1Virus-Cell Interactions Laboratory, Lady Davis Institute for Medical Research, 3999, Côte Ste Catherine St., Montréal, QC, H3T 1E2, Canada.
Retrovirology
|February 29, 2024
概括
非编码RNA,包括microRNA和长非编码RNA,调节人类免疫缺陷病毒 (HIV) 和人类T细胞白血病病毒 (HTLV) 的复制和延迟. 这些ncRNA为HIV和HTLV缓解或治愈提供了潜在的治疗策略.
科学领域:
- 病毒学 病毒学
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 人类免疫缺陷病毒 (HIV) 和人类T细胞白血病病毒 (HTLV) 呈现复杂的复制和潜伏阶段.
- 细胞环境和转录事件决定病毒状态.
- 非编码RNAs (ncRNAs) 是逆转录病毒复制周期的关键调节者.
研究的目的:
- 审查microRNAs (miRNAs) 和长非编码RNAs (lncRNAs) 在HIV和HTLV感染中的调节作用.
- 阐明特定的miRNA和lncRNA如何影响病毒转录,转录后调节和延迟.
- 探索基于ncRNA的治疗策略来治疗艾滋病毒和HTLV.
主要方法:
- 文献综述侧重于艾滋病毒和HTLV中的ncRNA功能.
- 对详细说明miRNA和lncRNA参与病毒调节的研究进行分析.
- 检查使用ncRNAs治疗逆转录病毒感染的治疗方法.
主要成果:
- 特定的miRNAs和lncRNAs被确定为HIV和HTLV转录和潜伏的关键调节者.
- ncRNAs可以诱导活跃病毒复制和潜伏状态之间的过渡.
- 这些调节机制显著影响病毒病原性.
结论:
- ncRNAs在控制HIV和HTLV的生命周期方面发挥着关键作用.
- 向miRNAs和lncRNAs为新的治疗干预提供了一个有希望的途径.
- 基于ncRNA的疗法可能会导致长期缓解或对HIV和HTLV的潜在治疗.
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
MicroRNAs
21.3K
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...
21.3K
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
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
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
LTR Retrotransposons
17.5K
LTR retrotransposons are class I transposable elements with long terminal repeats flanking an internal coding region. These elements are less abundant in mammals compared to other class I transposable elements. About 8 percent of human genomic DNA comprises LTR retrotransposons. Some of the common examples of LTR retrotransposons are Ty elements in yeast and Copia elements in Drosophila.
The internal coding region of LTR retrotransposons and their mechanism of transposition closely resembles a...
The internal coding region of LTR retrotransposons and their mechanism of transposition closely resembles a...
17.5K


