Mohammad Hashemabadi, Hossein Ali Sasan, Saman Hosseinkhani, Mojdeh Amandadi, Azadeh Samareh Gholami, Majid Sadeghizadeh
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引用次数: 0
Abstract
The CRISPR system finds extensive application in molecular biology, but its continuous activity can yield adverse effects. Leveraging programmable CRISPR/Cas9 function via nano-device mediation effectively mitigates these drawbacks. The integration of RNA-sensing platforms into CRISPR thus empowers it as a potent tool for processing internal cell data and modulating gene activity. Here, an intelligent guide RNA—a cis-repressed gRNA synthetic circuit enabling efficient recognition of specific trigger RNAs—is developed. This platform carries two toehold switches and includes an inhibited CrRNA sequence. In this system, the presence of cognate trigger RNA promotes precise binding to the first toehold site, initiating a cascade that releases CrRNA to target a reporter gene (luciferase) in this study. Decoupling the CrRNA segment from the trigger RNA enhances the potential of this genetic logic circuit to respond to specific cellular circumstances, offering promise as a synthetic biology platform. Developed ‘IngRNA,’ an intelligent CRISPR/Cas9 system with RNA-sensing toehold switches, enabling precise gene modulation by activating CrRNA in response to specific trigger RNAs. Demonstrated effective luciferase targeting in various systems.
期刊介绍:
Communications Biology is an open access journal from Nature Research publishing high-quality research, reviews and commentary in all areas of the biological sciences. Research papers published by the journal represent significant advances bringing new biological insight to a specialized area of research.