ArticleJournal of nanobiotechnology2024
Click chemistry-based dual nanosystem for microRNA-122 detection with single-base specificity from tumour cells.
Article in Journal of nanobiotechnology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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11 authors.
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Abstract
MicroRNAs (miRNAs) have been recognised as potential biomarkers due to their specific expression patterns in different biological tissues and their changes in expression under pathological conditions. MicroRNA-122 (miR-122) is a vertebrate-specific miRNA that is predominantly expressed in the liver and plays an important role in liver metabolism and development. Dysregulation of miR-122 expression is associated with several liver-related diseases, including hepatocellular carcinoma and drug-induced liver injury (DILI). Given the potential of miR-122 as a biomarker, its effective detection is important for accurate diagnosis. However, miRNA detection methods still face challenges, particularly in terms of accurately identifying miRNA isoforms that may differ by only a single base. Here, with the aim of advancing accessible methods for the detection of miRNAs with single-base specificity, we have developed a robust dual nanosystem that leverages the simplicity of click chemistry reactions. Using the dual nanosystem, we successfully detected miR-122 at single-base resolution using flow cytometry and analysed its expression in various tumour cell lines with high specificity and strong correlation with TaqMan assay results. We also detected miR-122 in serum and identified four single nucleotide variations in its sequence. The chemistry employed in this dual nanosystem is highly versatile and offers a promising opportunity to develop nanoparticle-based strategies that incorporate click chemistry and bioorthogonal chemistry for the detection of miRNAs and their isoforms.
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