Review of macrophage phenotypes (M1, M2, etc) in rheumatic diseases. In RA synovial Tiss macrophages - are MerTK+CD206+ w/ remission and MerTK−CD206− w/ active inflammation. Tissue fibrosis in PSS driven by Profibrotic CD206+ and CD163+ cell subsets https://t.co/vIG7SYsaWq https://t.co/OKnzOFIlKr