Fig. 1From: Hypoxia-induced the upregulation of stromal cell-derived factor 1 in fibroblast-like synoviocytes contributes to migration of monocytes into synovium tissue in rheumatoid arthritisMacrophage was adjacent to fibroblast-like synoviocytes in RA tissue. Macrophage (F4/80, green) and fibroblast-like synoviocytes (α-SMA, red) expression was detected in RA tissue by immunohistofluorescence stainBack to article page