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Scratch2, a Snail Superfamily Member, Is Regulated by miR-125b. | LitMetric

Scratch2, a Snail Superfamily Member, Is Regulated by miR-125b.

Front Cell Dev Biol

Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.

Published: August 2020

AI Article Synopsis

Article Abstract

is a transcription factor expressed in a very restricted population of vertebrate embryonic neural cell precursors involved in their survival, differentiation, and migration. The mechanisms that control its expression remain unknown and could contribute towards our understanding of gene regulation during neural differentiation and evolution. Here we investigate the role of microRNAs (miRNAs) in the Scrt2 post-transcriptional regulatory mechanism. We identified binding sites for miR-125b and -200b in the Scrt2 3'UTR in silico. We confirmed the repressive-mediated activity of the Scrt2 3'UTR through electroporation of luciferase constructs into chick embryos. Further, both CRISPR/Cas9-mediated deletion of miR-125b/-200b responsive elements from chicken Scrt2 3'UTR and expression of miRNAs sponges increased Scrt2 expression field, suggesting a role for these miRNAs as post-transcriptional regulators of Scrt2. The biological effect of miR-125b titration was much more pronounced than that of miR-200b. Therefore, we propose that, after transcription, miR-125b fine-tunes the Scrt2 expression domain.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7477046PMC
http://dx.doi.org/10.3389/fcell.2020.00769DOI Listing

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