病毒编码的循环RNAs:在病毒感染中的作用和意义
Giuseppe Sberna1, Fabrizio Maggi1, Alessandra Amendola1
1Laboratory of Virology and Biosafety Laboratories, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, 00149 Rome, Italy.
International journal of molecular sciences
|November 25, 2023
概括
循环RNAs (circRNAs),稳定的RNA分子,对于调节细胞过程至关重要,并作为病毒感染和疾病进展的生物标志物. 这篇评论详细介绍了它们在病毒感染期间在细胞通路中的作用.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 遗传学 是一个遗传学.
背景情况:
- 循环RNAs (circRNAs) 是一种以其稳定性而闻名的共闭合RNA分子.
- 最初被认为是非功能性的,circRNAs现在被认为是各种细胞过程中的关键调节者.
- 宿主细胞和病毒都能合成circRNAs,它们在感染,炎症,瘤发生和基因表达中起作用.
研究的目的:
- 为病毒编码和细胞编码的circRNAs提供最新的概述.
- 在病毒感染期间阐明circRNAs在细胞通路中的参与.
主要方法:
- 关于circRNAs当前研究的文献综述.
- 对研究circRNA生物发生,功能和调节的研究进行分析.
- 合成关于circRNAs作为病毒感染和疾病中的生物标记物的信息.
主要成果:
- 循环RNA是无处不在的,稳定的分子,具有多样化的调节功能.
- 特定的circRNA涉及到关键的细胞过程,包括免疫反应和瘤发生.
- 循环RNA正在成为诊断病毒感染和监测疾病进展的重要生物标志物.
结论:
- 循环RNA是细胞调节的组成部分,并在病毒感染中发挥多方面的作用.
- 了解circRNA机制为新的诊断和治疗策略提供了潜力.
- 对病毒编码和细胞编码的circRNA进一步的研究对于我们对宿主-病原体相互作用的知识的进步至关重要.
相关概念视频
Rous Sarcoma Virus (RSV) and Cancer
5.1K
Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
5.1K
Retrovirus Life Cycles
46.0K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
46.0K
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
RNA Interference
26.1K
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...
26.1K
Retroviruses
12.3K
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
12.3K
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


