Fig. 1
From: The roles of IL-19 and IL-20 in the inflammation of degenerative lumbar spondylolisthesis
Expression of IL-19, IL-20, IL-20R1, IL-20R2, IL-1β, TNF-α, and MCP-1 in DLS patients. Micrographs of IHC staining of cytokines and chemokines (IL-19, IL-20, IL-20R1, IL-20R2, IL-1β, TNF-α, and MCP-1) with specific antibodies on (a) Disc, (b) Facet joint, and (c) Ligamentum flavum tissue samples from patients with DLS (Disc, N = 6; Facet joint, N = 12; Ligamentum flavum, N = 13). Chondrocytes were positively stained. The boxed area shows positively stained fibrocytes and fibroblasts (original magnification ×200). Staining with isotype mouse IgG was used as the negative control. All experiments were performed three times with similar results. Data are from a representative experiment.