In July's SLAS Discovery feature article, '3D Cell-Based Assays for Drug Screens: Challenges in Imaging, Image Analysis, and High-Content Analysis,' Tijmen H. Booij, Ph.D., Screening Specialist for NEXUS Personalized Health Technologies (Switzerland), discusses the switch from using 2D to 3D cell cultures in drug discovery to more accurately mimic human physiological conditions and improve the success rates of drugs in the early stages of preclinical drug discovery.