Integration of Hybridization Chain Reaction and Protein-Binding Amplification for Long-Term Imaging of Intracellular mRNA: Avoiding Signal Fluctuation

Zhou, Yibo; Shi, Huiqiu; Xia, Xinchao; Yang, Sheng; Li, Junbin; Qing, Zhihe; Zheng, Jing; Yang, Ronghua

doi:10.1021/acs.analchem.4c01992

Anal. Chem.

2024

DOI: 10.1021/acs.analchem.4c01992

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Integration of Hybridization Chain Reaction and Protein-Binding Amplification for Long-Term Imaging of Intracellular mRNA: Avoiding Signal Fluctuation

Yibo Zhou,

Huiqiu Shi,

Xinchao Xia

et al.

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On‐Site Multiply Stimulated Self‐Confinement of an Integrated DNA Cascade Circuit for Highly Reliable Intracellular Imaging of miRNA and In Situ Interrogation of the Relevant Regulatory Pathway

Jiang,

Chen,

Shang

et al. 2024

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Artificial DNA circuits represent a versatile yet promising toolbox for in situ monitoring and concomitant regulation of diverse biological events within live cells. Nonetheless, their performance is significantly impeded by the diffusion‐dominated slow reaction kinetics and the uncontrollable off‐target activation. Herein, a self‐localized cascade (SLC) circuit is reported for the robust and efficient microRNA (miRNA) analysis in living cells. The SLC circuit consists of the cell‐specific localization module and the analyte‐specific signal amplification module. By integrating the reaction probes of these two modules, the complexity of the system is reduced to realize the responsive co‐localization of circuitry probes and the simultaneous cascade signal amplification. Taking advantage of the specifically activated, self‐localized, and cascade design, the SLC circuit successfully achieves the robust miRNA‐21 (miR‐21) imaging and the accurate cells differentiation. Moreover, the reverse regulation mechanism is successfully explored between messenger RNA (mRNA) and miRNA through the engineered SLC circuit and further elucidates the underlying signaling pathways between them. Therefore, the SLC circuit provides a powerful tool for the sensitive detection of intracellular biomolecules and the study of the corresponding cell regulatory mechanisms.

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On‐Site Multiply Stimulated Self‐Confinement of an Integrated DNA Cascade Circuit for Highly Reliable Intracellular Imaging of miRNA and In Situ Interrogation of the Relevant Regulatory Pathway

Jiang,

Chen,

Shang

et al. 2024

Small

View full text Add to dashboard Cite

show abstract

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Integration of Hybridization Chain Reaction and Protein-Binding Amplification for Long-Term Imaging of Intracellular mRNA: Avoiding Signal Fluctuation

Cited by 1 publication

References 41 publications

On‐Site Multiply Stimulated Self‐Confinement of an Integrated DNA Cascade Circuit for Highly Reliable Intracellular Imaging of miRNA and In Situ Interrogation of the Relevant Regulatory Pathway

On‐Site Multiply Stimulated Self‐Confinement of an Integrated DNA Cascade Circuit for Highly Reliable Intracellular Imaging of miRNA and In Situ Interrogation of the Relevant Regulatory Pathway

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