4.5 Article

AGO-RBP crosstalk on target mRNAs: Implications in miRNA-guided gene silencing and cancer

Journal

TRANSLATIONAL ONCOLOGY
Volume 21, Issue -, Pages -

Publisher

ELSEVIER SCIENCE INC
DOI: 10.1016/j.tranon.2022.101434

Keywords

miRNAs; Argonaute protein; RBPs; mRNAs; miRISC; Cancer

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Funding

  1. Memorial University of Newfoundland (MUN), St. John's, NL, Canada

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The interplay between miRNA-AGO and multiple RBPs determines the fate of target mRNA and plays a crucial role in cancer initiation and progression.
MicroRNAs (miRNAs) and RNA-binding proteins (RBPs) are important regulators of mRNA translation and stability in eukaryotes. While miRNAs can only bind their target mRNAs in association with Argonaute proteins (AGOs), RBPs directly bind their targets either as single entities or in complex with other RBPs to control mRNA metabolism. miRNA binding in 3' untranslated regions (3' UTRs) of mRNAs facilitates an intricate network of interactions between miRNA-AGO and RBPs, thus determining the fate of overlapping targets. Here, we review the current knowledge on the interplay between miRNA-AGO and multiple RBPs in different cellular contexts, the rules underlying their synergism and antagonism on target mRNAs, as well as highlight the implications of these regulatory modules in cancer initiation and progression.

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