In murine macrophages, transcriptional profiling in either undifferentiated (M0), M1‐like or M2‐like conditions, identified an up‐regulation of the mouse FPR2 expression in M1 macrophages versus M0 and M2 cells (Jablonski et al., 2015) However, the opposite has also been described, with FPR2 expression reported to be reduced in human abdominal aortic aneurysm lesions compared with levels in health controls (Petri et al., 2018). The gene discussed is FPR2; the disease is abdominal aortic aneurysm.