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Updated: Jun 23, 2026

A Reporter Assay to Analyze Intronic microRNA Maturation in Mammalian Cells
Published on: June 16, 2022
Development and optimization of microRNA against relaxin-3
Gabrielle E Callander1, Walter G Thomas, Ross A D Bathgate
1Department of Biochemistry and Molecular Biology, Howard Florey Institute, University of Melbourne, Parkville, Victoria, Australia.
Abstract:
Recent in vivo studies suggest a role for relaxin-3 in feeding and stress. To further elucidate the function of relaxin-3 in the central nervous system, we have employed a complementary approach, based on RNA interference, to modulate relaxin-3 expression. We have designed, constructed, and characterized three microRNAs (miRNAs) targeting different regions of the relaxin-3 transcript. These were tested to determine the amount of miRNA required to achieve the greatest knockdown and for their ability to reduce the expression of relaxin-3 in transfected HEK293Tcells. All miRNA constructs significantly reduced relaxin-3-induced cAMP responses; however, miR499 was most effective. This should be a useful tool for in vitro studies and central targeting of relaxin-3 in vivo using viral delivery systems.
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