基于RT-RPA:CRISPR/Cas12a单双模式终点检测系统的基孔尼亚病毒的快速,特定和超敏感的检测
Pooja Bhardwaj1, Shahzadi Gulafshan1, Rajeev Singh1
1JE-AES Apex Laboratory, ICMR-Regional Medical Research Centre, BRD Medical College Campus, Gorakhpur, 273013, India.
Analytica chimica acta
|October 13, 2024
概括
一种使用逆转录重组酶聚合酶放大 (RT-RPA) 和CRISPR/Cas12a技术的新型单测定方法允许快速和超敏感地检测奇孔尼亚病毒 (CHIKV). 这种诊断工具对于及时支持性治疗和在资源有限的环境中改善患者结果至关重要.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 生物技术是生物技术.
背景情况:
- Chikungunya (CHIK) 是一种被诊断不足的急性发烧性疾病 (AFI) 和急性脑炎综合征 (AES) 的重要原因.
- 对CHIK缺乏快速,敏感的临床检测 (PoCT) 导致诊断延迟和误诊,增加了医院的负担.
- 准确的诊断对于启动早期支持性治疗至关重要,因为对于CHIK没有特定的抗病毒疗法.
研究的目的:
- 开发一种由CRISPR/Cas12a介导的反转录重组酶聚合酶放大 (RT-RPA) 介导的基于CRISPR/Cas12a的检测平台.
- 为了在临床样本中实现 chikungunya 病毒 (CHIKV) 的快速,特定和超敏感的分子检测.
主要方法:
- 整合CRISPR/Cas12a技术与RT-RPA用于CHIKV检测.
- 开发一个单系统,允许双模式终点检测 (光和侧流).
- 尽量减少处理过程和仪器仪表,以方便使用.
主要成果:
- 该测试可在35分钟内以最小的仪器仪表快速检测CHIKV.
- 在单个反应管中证明了双模式检测 (光和侧流),防止交叉污染.
- 获得了大约1个副本 (412zg/μL-1) 的分析灵敏度,100%的临床灵敏度和特异性,以及8个基因副本的检测极限.
- 显示了CHIKV的精确检测,没有与其他常见病原体的交叉反应.
结论:
- 该RT-RPA:CRISPR/Cas12a试验提供了快速,特定和超敏感的CHIKV分子检测.
- 这种单,双模式检测方法非常适合在资源有限的环境中用于CHIKV诊断.
- 该测试可以使临床医生能够迅速启动支持性治疗,改善患者的治疗结果和公共卫生反应.
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
2.6K
06:18Multiplexed Isothermal Amplification Based Diagnostic Platform to Detect Zika, Chikungunya, and Dengue 1
Published on: March 13, 2018
14.2K
相关概念视频
CRISPR and crRNAs
16.9K
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...
16.9K
CRISPR
49.7K
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...
49.7K
