FPR1 and bronchiolitis obliterans syndrome: D’Amico et al. evaluated the role of the product encoded by the formyl peptide receptor 1 (FPR-1) gene in experimental models of bronchiolitis obliterans syndrome (BOS), a chronic lymphoproliferative lung disease caused by an injury to the small respiratory tract that is considered the main manifestation of chronic lung allograft rejection [80].