Charles River, a provider of drug discovery and development services, agreed to acquire Retrogenix, a developer of cell microarray technology designed for detecting ligand-receptor interactions, for $48m. “The acquisition of Retrogenix strategically expands Charles River’s existing discovery capabilities by adding a proprietary cell microarray technology to accelerate target identification and provide preclinical safety assurance for novel therapies. In addition to enhancing our position as the premier, single-source provider for a broad portfolio of discovery services, Retrogenix enhances our ability to support clients’ early-stage drug research efforts in advanced drug modalities, including cell therapies. Retrogenix’s goal is to become the industry standard for receptor identification and off-target screening solutions for biotherapeutics and cell therapies, and we believe the combination with Charles River’s extensive early-stage expertise will enable them to achieve this goal. We are pleased to welcome Retrogenix and its talented staff to the Charles River family," James C. Foster, Charles River Chairman, President and CEO.