一种基于CRISPR/Cas系统的新方法用于检测Mycobacterium结核病菌
Xiaoyu Zhang1, Xiaoying He2, Yubo Zhang1
1Department of Medical Laboratory, Weifang Medical University, Weifang, 261041, Shandong, China.
BMC infectious diseases
|October 11, 2023
概括
一种新的TB-CRISPR技术结合了集群定期间隔的短时间Palindromic重复 (CRISPR) 与重组酶介导的同热核酸放大 (RAA) 以快速准确地检测Mycobacterium结核病 (MTB). 这种分析显示出高灵敏度和特异性,有助于及时诊断结核病.
科学领域:
- 分子生物学分子生物学
- 传染性疾病 传染性疾病
- 生物技术是生物技术.
背景情况:
- 由Mycobacterium tuberculosis (MTB) 引起的结核病 (TB) 是一个严重的全球健康威胁.
- 有效,具体和可访问的诊断分析对结核病控制至关重要.
- 当前的诊断方法可能耗时或需要专门的设备.
研究的目的:
- 开发和评估一种用于检测Mycobacterium结核病 (MTB) 的新型诊断方法.
- 通过使用CRISPR和RAA技术的组合来提高灵敏度和特异性.
- 为了建立一个快速,方便,和成本效益的临床结核病诊断测试.
主要方法:
- 通过使用集群定期间隔的短时间Palindromic重复 (CRISPR) 系统建立了一个特定的检测方法.
- 重组酶介导的同热核酸放大 (RAA) 被整合到放大检测信号中.
- 结核病CRISPR技术使用504名可疑结核病患者样本进行了验证,BACTEC 960培养是黄金标准.
主要成果:
- 与BACTEC 960培养相比,TB-CRISPR技术显示出高灵敏度 (0.883) 和特异性 (0.940).
- 该试验可以使用CRISPR-Cas12a系统检测到低至3.13CFU/mL的MTB H37Ra.
- 接收器操作特征 (ROC) 曲线分析显示曲线下的面积 (AUC) 为0.944,表明了出色的诊断准确性.
结论:
- 结核病CRISPR技术是结核病分子诊断的一个有价值的工具.
- 该测试在1.5小时内提供快速结果,操作简单,设备要求最小.
- 这种方法在加速MTB检测和改善临床结核病诊断方面具有显著的前景.
关键词:
克里斯普尔是什么意思?克里斯普尔是什么意思?诊断 诊断 诊断 诊断 诊断分子测试是分子测试.结核病菌菌菌的结核病菌的结核病菌.RAA RAA RAA RAA RAA RAA RAA RAA RAA RAA RAA RAA RAA RAA RAA RAA更多相关视频
07:59Rapid and Specific Detection of Acinetobacter baumannii Infections Using a Recombinase Polymerase Amplification/Cas12a-based System
Published on: April 25, 2025
313
10:16Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases
Published on: August 16, 2024
1.2K
相关概念视频
CRISPR
52.1K
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...
52.1K
CRISPR/Cas9 Genome Editing
24
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...
24
CRISPR and crRNAs
17.0K
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...
17.0K
The Antiviral System of Bacteria and Archaea: CRISPR
31
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...
31
