ArticleMethods in molecular biology (Clifton, N.J.)2025
A Catalytic Hairpin Assembly-Based Approach for RNA Imaging in Living Cells.
Article in Methods in molecular biology (Clifton, N.J.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The advancement of nucleic acid nanotechnology has resulted in broad applications of DNA- and RNA-based molecular sensors for bioanalysis. Catalytic hairpin assembly is such a type of programmable and enzyme-free nucleic acid circuit that has been popularly used in developing biosensors. Genetically encodable fluorogenic RNA-based devices have recently gained a lot of attentions as a powerful tool for intracellular imaging. Combining these two techniques together, we have developed a genetically encodable RNA-based catalytic hairpin assembly circuit for the highly sensitive detection of low-abundance RNAs in living cells. In this system, the binding of one target RNA can catalytically trigger the generation of tens-to-hundreds of fluorogenic RNA reporters and produce a significantly enhanced fluorescence signal. Here, we will introduce the detailed design, optimization, and imaging protocol of this new type of powerful imaging tools.
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