Researchers at Université de Montréal created RIMap-RISC, a new database that maps how microRNAs and messenger RNAs interact at the molecular level. Ph.D. student Simon Chasles developed the tool under professor François Major's direction at the university's Institute for Research in Immunology and Cancer.
The database integrates structural data to model RNA interactions systematically. This approach lets scientists predict and study how different RNA molecules communicate and regulate cellular functions. Understanding these interactions matters because microRNAs control gene expression, and disruptions in their function link to cancer, heart disease, and other conditions.
RIMap-RISC provides researchers a searchable platform to test hypotheses about RNA behavior without running every experiment in a lab first. The work appears in Genome Biology and establishes a new resource for the RNA research community.
Next steps involve expanding the database's coverage and validating predictions experimentally. The tool could accelerate drug discovery by identifying which RNA interactions scientists should target therapeutically.