Demonstrates amplified detection of microRNA biomarkers in clinical samples, suggesting improved diagnostic capabilities.
-cleavage activity of CRISPR-Cas12a for further signal amplification. Such rational integration provides a generic assay for the effectively amplified detection of miRNA biomarkers. By simply tuning the variable regions in the CHA modules, this assay achieves sub-femtomolar sensitivity for different miRNA biomarkers, which improves the detection limit of CRISPR-Dx in the analysis of miRNA by 3-4 orders of magnitude. With the usage of the proposed assay, the sensitive assessment of miR-21 levels in different cancer cell lines and clinical serum samples has been achieved, providing a generic method for the sensitive detection of miRNA biomarkers in molecular diagnosis.
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Peng et al. (2020) studied this question.
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