CircRNA:在治疗和疫苗开发方面打开新的前沿
Howra Bahrulolum1, Fatemeh Nouri Rouzbahani2, Zakieh Sadat Hoseini3
1Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
概括
循环RNAs (circRNAs) 为新型疫苗和治疗提供了一个稳定,高效的平台. 这些RNA分子克服了线性RNA的局限性,在癌症和传染病治疗中显示出前景.
科学领域:
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
- 生物技术是生物技术.
背景情况:
- 循环RNAs (circRNAs) 是一种具有独特闭环结构的RNA分子的新型类别.
- 与线性RNA相比,这种结构提供了增强的稳定性和抗降解性.
- 循环RNA具有像帽子独立翻译和作为miRNA海绵这样的功能,表明了广泛的功能潜力.
研究的目的:
- 为循环RNA (circRNA) 生物学提供全面的审查,重点关注它们的生物发生,机制和治疗潜力.
- 突出circRNAs的应用,作为针对癌症和传染病的疫苗开发的创新平台.
- 讨论基于circRNA的疫苗的设计,合成,输送和免疫方面的问题.
主要方法:
- 关于circRNA研究的文献综述,重点关注与它们的生物学,功能和治疗应用相关的研究.
- 对circRNA生物发生,基因调控作用和转化能力的现有数据的分析.
- 综合有关circRNA疫苗设计,输送策略和免疫反应的信息.
主要成果:
- 循环RNA具有显著的稳定性,可以启动独立于帽子的翻译,克服线性RNA疫苗的局限性.
- 证明circRNAs作为疫苗平台的潜力,可以引起针对癌症和传染病的强有力的免疫反应.
- 确定了circRNAs在基因调节中的作用 (miRNA海绵,蛋白质支架) 以及作为潜在的诊断生物标志物.
结论:
- 循环RNA代表了开发下一代RNA疗法和疫苗的有希望和稳定的平台.
- 基于circRNA的疫苗为抗击传染病和癌症提供了可行的策略.
- 对circRNA生物学和传递系统的进一步研究将释放它们在医学中的全部潜力.
相关概念视频
Experimental RNAi
7.3K
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...
7.3K
RNA Interference
27.8K
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...
27.8K
siRNA - Small Interfering RNAs
18.3K
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...
18.3K
lncRNA - Long Non-coding RNAs
9.8K
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...
9.8K
Microorganisms in Medicine and Therapeutics
936
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
936
MicroRNAs
3.8K
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...
3.8K


