A habenula-enriched GPCR, GPR151, regulates behavioral sensitivity to inflammation

The study integrates mouse and human data to test GPR151's role in behavioral sensitivity to inflammation. GPR151 is highly expressed in the habenula, a brain region linked to negative valence and depression, and is associated with inflammation. The research aims to address a subtype of major depressive disorder that is often resistant to conventional pharmacotherapies, which act non-specifically and cause side effects. These findings could lead to more targeted treatments for inflammation-driven depression. Next steps likely involve validating GPR151 as a druggable target and exploring its downstream signaling pathways.