用于无放大和敏感检测核酸的CRISPR/Cas12a化学发光级别生物试验
Xiaotian Guan1, Peizheng Wang1, Yi Wang2
1Institute of Biopharmaceutical and Healthcare Engineering, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China.
Biosensors
|August 27, 2025
概括
这项研究引入了CRISPR/Cas12a化学发光级别生物试验 (CCCB),用于敏感检测人类乳头瘤病毒16型 (HPV-16) 和帕维病毒B19 (PB-19) DNA. 这种新方法实现了快速,无放大核酸检测的高精度.
科学领域:
- 分子生物学
- 生物技术
- 核酸检测
背景情况:
- CRISPR/Cas系统提供精确的核酸检测能力.
- 对人类乳头瘤病毒16型 (HPV-16) 和帕维病毒B19 (PB-19) 的准确鉴定对于疾病诊断至关重要.
研究的目的:
- 开发一种CRISPR/Cas12a化学发光级别生物试验 (CCCB),用于敏感且无扩增检测HPV-16和PB-19DNA.
- 建立一个快速,具体,可靠的核酸检测平台.
主要方法:
- 设计了一个磁珠 (MB) 连接单链DNA (LssDNA) - 酸酶 (ALP) 复合体.
- 使用CRISPR/Cas12a的跨裂变活性在目标DNA结合时释放ALP.
- 化学发光 (CL) 信号生成与CRISPR/Cas12a系统进行检测.
主要成果:
- 在CCCB中,HPV-16 (0.14 pM) 和PB-19 (0.37 pM) DNA的检测极限较低.
- 整个检测过程在60分钟内完成.
- 该试验的特异性很高,临床样本的恢复率为93. 4- 103. 5%,并且具有强度.
结论:
- 开发的CRISPR/Cas12a化学发光生物测试提供了一种敏感,快速且无放大核酸检测的方法.
- 这种双放大策略具有高特异性和低污染风险,有可能诊断各种传染病.
更多相关视频
10:16Author Spotlight: Development of Simplified CRISPR-Based Tests for Rapid Detection of Infectious Diseases
Published on: August 16, 2024
1.4K
07:59Rapid and Specific Detection of Acinetobacter baumannii Infections Using a Recombinase Polymerase Amplification/Cas12a-based System
Published on: April 25, 2025
515
相关概念视频
01:59CRISPR
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 Short...
01:59CRISPR
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 Short...
01:28CRISPR/Cas9 Genome Editing
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...