Expanding the immune-related targetome of miR-155-5p by integrating time-resolved RNA patterns into miRNA target prediction

The lack of a sufficient number of validated miRNA targets severely hampers the understanding of their biological function. Even for the well-studied miR-155-5p, there are only 239 experimentally validated targets out of 42,554 predicted targets. For a more complete assessment of the immune-related...

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Bibliographic Details
Main Authors: Martin Hart, Caroline Diener, Stefanie Rheinheimer, Tim Kehl, Andreas Keller, Hans-Peter Lenhof, Eckart Meese
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:RNA Biology
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Online Access:https://www.tandfonline.com/doi/10.1080/15476286.2025.2449775
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Summary:The lack of a sufficient number of validated miRNA targets severely hampers the understanding of their biological function. Even for the well-studied miR-155-5p, there are only 239 experimentally validated targets out of 42,554 predicted targets. For a more complete assessment of the immune-related miR-155 targetome, we used an inverse correlation of time-resolved mRNA profiles and miR-155-5p expression of early CD4+ T cell activation to predict immune-related target genes. Using a high-throughput miRNA interaction reporter (HiTmIR) assay we examined 90 target genes and confirmed 80 genes as direct targets of miR-155-5p. Our study increases the current number of verified miR-155-5p targets approximately threefold and exemplifies a method for verifying miRNA targetomes as a prerequisite for the analysis of miRNA-regulated cellular networks.
ISSN:1547-6286
1555-8584