Bionano Genomics publication shows utility of optical genome mapping in T-ALL

Bionano Genomics (BNGO) announced a peer-reviewed publication from a team led by Manon Delafoy from the Institut Necker Enfants Malades, INEM, and colleagues from multiple French pediatric hematology centers showing how optical genome mapping, OGM, can be used to detect oncogenic structural variants in clinical research of infant and toddler T-cell acute lymphoblastic leukemia, T-ALL. The publication shows that OGM can reveal distinct genetic drivers and prognostic subgroups that conventional cytogenetics failed to identify in a retrospective, national cohort of 27 T-ALL cases of infants and toddlers as part of a combined workflow of targeted sequencing, OGM, and RNA sequencing. Infants and toddlers can be a difficult segment of the population to analyze because their cancers are rare. The study conclusions support using OGM as a complementary tool to conventional assays to help accurately stratify samples from infants and toddlers according to prognostic risk.