3D Models - The Future of Drug Development
uu.diva-portal.org
June 14, 2026, 4 p.m.
Accurately predicting the outcome of drug candidates remains a central challenge in preclinical research. Traditionally, this has relied on the use of 2D cell cultures or animal models. In recent decades, significant efforts have been made to develop 3D in vitro models that better recapitulate in vivo physiology, while also minimizing the use of animal testing. In this report, we discuss spheroids, organoids, organ-on-chips, and scaffolds as well as assess their relevance as models for heart, gut, brain, liver, and tumor tissue. It appears that spheroids are uniquely appropriate for modeling tumors, where features like hypoxia - typically a limitation of 3D models - mirror the natural tumor microenvironment. The human heart, gut, brain and liver are complex organs that are still difficult to model with conventional methods; in these tissues, 3D models such as organoids and organ-on-chips appear to be the most physiologically accurate alternative. Across all these models, scaffolds and hydrogels play a central role in mimicking the native extracellular matrix and promoting physiologically relevant cell behaviour.