镜子同步不对称的CRISPR纳米开关用于乳腺癌不同阶段的多个circRNA的单分子分析
Qian Liu1, Ting-Ting Pan1, Li-Juan Wang1
1School of Chemistry and Chemical Engineering, State Key Laboratory of Digital Medical Engineering, Southeast University, Nanjing 211189, China.
Nucleic acids research
|November 8, 2025
概括
我们开发了一种快速而灵敏的方法,使用CRISPR-Cas12a技术检测循环RNA (circRNAs). 这种新技术可以准确地识别各种样本中的circRNA,有助于疾病进展的分类.
科学领域:
- 分子生物学分子生物学
- 生物化学 生化学
- 遗传学 是一个遗传学.
背景情况:
- 循环RNA (circRNAs) 是具有独特循环结构的非编码RNA.
- 在转录和后转录水平上,circRNAs在调节基因表达方面发挥着至关重要的作用.
研究的目的:
- 开发一种灵敏,特定和快速的方法来检测循环RNA.
- 为了实现潜在的诊断应用,对circRNAs进行单分子分析.
主要方法:
- 一种使用工程DNA发针进行信号预放大的一测试.
- 克里斯普尔-Cas12a系统用于通过跨裂变放大生成信号.
- 从RNase R处理的RNA样本中检测circRNA,包括临床样本.
主要成果:
- 达到1.07 aM的高度敏感的检测极限.
- 具有单个不匹配歧视能力的特异性.
- 在快速的25分钟反应时间内完成检测.
- 通过使用临床样本成功分类疾病进展.
结论:
- 开发的平台为circRNA检测提供了一种敏感,特定和快速的方法.
- 这种技术可以进行单分子分析,并有可能用于临床诊断.
- 该方法可以扩展到检测其他核酸类型.
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...
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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...
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...