Related Experiment Video
Updated: Jul 15, 2026

MicroRNA Amplification and Recognition through Locked-nucleic-acid In situ Hybridization as a Novel Detection and Quantification Method
Published on: October 7, 2025
In situ detection of animal and plant microRNAs
Guy Wheeler1, Anna Valoczi, Zoltan Havelda
1School of Biological Sciences, University of East Anglia, Norwich, United Kingdom.
Abstract:
MicroRNAs (miRNAs) are recently discovered short regulatory RNA molecules representing a new layer in posttranscriptional gene expression regulation. Although more than 450 human miRNAs have been identified, only a very few of them have been characterized in detail. The precise understanding of miRNA-mediated processes requires the reliable spatial and temporal analyses of miRNA accumulation at tissue/cell level. However, the detection of miRNAs by in situ hybridization (ISH) is technically challenging because of the small size of target sequences. It was shown recently that locked nucleic acid nucleotide-containing probes can anneal to short nucleic acids with high specificity. This enabled several research groups to analyze the expression patterns of miRNAs in both plant and animal tissues. This review focuses on the results of recent publications on the detection of miRNAs by ISH.
Related Concept Videos
MicroRNAs
MicroRNAs
In-situ Hybridization
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...

