Formyl peptide receptor 2: a potential therapeutic target for inflammation-related diseases.

Formyl peptide receptor 2 (FPR2) is a G protein-coupled receptor with seven transmembrane domains, widely distributed in human cells. It plays a crucial role in inflammation-related diseases. Known for its "double-edged sword" nature, FPR2 can bind a variety of exogenous and endogenous ligands, mediating both pro-inflammatory and anti-inflammatory responses in tissues such as eyes, liver, joints, lungs, nerves, and blood vessels. FPR2's bioactivities are regulated by a complex network of genes and signaling pathways. However, the precise regulatory mechanisms governing its functions in different inflammatory conditions are still not well understood. This review summarizes the FPR2's activities in various inflammation-related diseases and looks into its potential as a therapeutic target. This review highlights recent advances in developing exogenous agonists for FPR2 and discusses receptor expression across species to support nonclinical research. Overall, this review aims to clarify FPR2's role in inflammation and provide insights for the development of new drugs against inflammatory diseases.