使用集群定期间隔的短Palindromic重复/CRISPR相关蛋白和Argonaute核酶进行病毒检测
1The Precision Medical Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, China.
概括
CRISPR/Cas和Argonaute (Ago) 系统提供快速,灵敏和特定的病毒检测,克服了PCR等传统方法的局限性. 这些先进的核酸检测技术有望为全球传染病控制提供可访问的诊断.
科学领域:
- 分子生物学分子生物学
- 生物技术是生物技术.
- 传染病诊断 传染病诊断 传染病诊断
背景情况:
- 诸如COVID-19之类的病毒性流行病突显了对高效诊断工具的迫切需要.
- 像聚合酶链反应 (PCR) 这样的传统方法耗时,需要专门的设备.
- 新兴的集群定期间隔的简短的Palindromic重复 (CRISPR) /CRISPR相关蛋白 (Cas) 和Argonaute (Ago) 系统提供快速,敏感和特定的核酸检测.
研究的目的:
- 审查CRISPR/Cas (Cas9,Cas12,Cas13) 和Ago系统的机制和功能.
- 调查这些系统在单个和多重病毒检测中的应用.
- 讨论CRISPR/Cas和基于ago的诊断的当前挑战和未来方向.
主要方法:
- 关于CRISPR/Cas和Ago系统用于病毒检测的科学文献的综述.
- 对特定检测平台的分析,包括DACD/RACD,DETECTR,CFNS,手机检测,MiCaR,PAND,SHERLOCKv2和CARMEN等.
- 讨论系统机制,灵敏度,特异性和多重复合能力.
主要成果:
- 通过CRISPR/Cas和Ago系统,可以达到高特异性的单拷贝检测极限.
- 单一检测的例子包括DACD/RACD,DETECTR,CFNS和无放大功率的手机测试.
- 多个复数检测的例子包括MiCaR (30个复数),PAND (5个复数),SHERLOCKv2 (4个复数) 和CARMEN (>100个目标).
结论:
- 基于CRISPR/Cas和ago的检测方法比传统技术具有显著的优势.
- 挑战包括原始空间器相邻动机 (PAM) 要求,核酸处理时间和组件稳定性.
- 未来在特异性,多重化和临床检测 (POCT) 方面的进展将加强全球传染病监测和控制.
关键词:
阿尔戈诺特 (Ago) 系统集群定期间隔的短时间的Palindromic重复 (CRISPR) /CRISPR相关蛋白质 (Cas) 系统.多重核酸检测多重核酸检测在核酸检测中优先检测病毒病原体这就是SARS-CoV-2病毒.通过SNP歧视性病毒检测.更多相关视频
09:03Field-Deployable Candidatus Liberibacter asiaticus Detection Using Recombinase Polymerase Amplification Combined with CRISPR-Cas12a
Published on: December 23, 2022
2.7K
07:59Rapid and Specific Detection of Acinetobacter baumannii Infections Using a Recombinase Polymerase Amplification/Cas12a-based System
Published on: April 25, 2025
523
相关概念视频
CRISPR
52.9K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
52.9K
CRISPR and crRNAs
17.4K
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
17.4K
The Antiviral System of Bacteria and Archaea: CRISPR
125
CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats is a adaptive immune system found in bacteria and archaea that protects against viral infections. This system enables prokaryotic cells to identify, remember, and neutralize foreign genetic elements, primarily bacteriophages, by storing fragments of the invader’s DNA as a genetic memory.The CRISPR immune response begins during an initial infection. Cas (CRISPR-associated) proteins play a central role in this...
125
CRISPR/Cas9 Genome Editing
227
The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
227
Homologous Recombination
52.0K
The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
52.0K
