Duke University Researchers Discover New Mechanism in GPCR Signaling with Potential Drug Implications
Researchers at Duke University School of Medicine have identified a novel mechanism by which G protein-coupled receptors (GPCRs) control cellular signaling. GPCRs are significant as they are the target of approximately one-third of FDA-approved drugs. The study, published in the journal Nature, reveals that β-arrestin proteins can form liquid-like clusters, or condensates, which organize signaling molecules spatially and temporally. This discovery was made using imaging and protein interaction assays, showing that these condensates play a crucial role in GPCR signaling and receptor internalization. The research highlights a previously unrecognized regulatory mechanism, suggesting new approaches for targeted modulation of GPCR-mediated cellular communication. 
