What question did this study set out to answer?

This research aims to clarify how related micrornas are simultaneously downregulated through interactions with long noncoding RNAs.

March 28, 2026Open Access

Linking miRNAs to decay

Key Points

This research aims to clarify how related micrornas are simultaneously downregulated through interactions with long noncoding RNAs.
Analysis of microrna and lncRNA interactions
Identification of target genes affected by miRNA decay
Investigation of miRNA-induced silencing complex (miRISC) dynamics
Demonstrated that a specific lncRNA triggers target-mediated microrna decay (TDMD)
Found that looser base-pairing interactions are sufficient for miRNA downregulation
Established new insights into the regulatory roles of lncRNAs in gene expression

Abstract

MicroRNAs (miRNAs) regulate gene expression by recruiting Argonaute (AGO) proteins to specific targets, forming the microRNA (miRNA)-induced silencing complex (miRISC). In this issue of Genes & Development , Grimme and colleagues (doi:10.1101/gad.353314.125) determine how a family of related miRNAs is coordinately downregulated through limited base-pairing interactions with a long noncoding RNA (lncRNA). The lncRNA serves as a potent trigger to induce target-mediated miRNA decay (TDMD) despite supporting a looser pairing architecture with the miRNAs than typically needed.

Linking miRNAs to decay

Key Points

Abstract

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