Design of Multimodal Small Molecules Targeting miRNAs Biogenesis: Synthesis and In Vitro Evaluation

International audiencemicroRNAs (miRNAs) are emerging as novel biological targets for medicinal chemists to develop chemical tools for intracellular regulation. In this context, the discovery of small-molecule drugs targeting specific miRNAs and modulating their production or function represents a very promising approach that could be further developed for targeted therapy in miRNA-related pathologies. Here, we describe the design of multimodal small molecules as RNA ligands targeting DICER-mediated miRNA maturation. The synthesis and the biochemical evaluation as ligands of stem-loop-structured precursor microRNAs (pre-miRNAs) are reported