Figure 6From: Frequency of Th17 CD20+ cells in the peripheral blood of rheumatoid arthritis patients is higher compared to healthy subjects Frequency of Th17 cells, and plasma IL-17, IL-21, and IL-23 concentrations. (A) Schematic summarizing the proportions of CD20+ and Th17/CD20+ cell subsets in healthy subjects (HS) and rheumatoid arthritis (RA) patients. (B) Plasma and synovial fluid (SF) concentrations of IL-17, IL-21, and IL-23 as measured by enzyme-linked immunosorbent assay in RA subjects. The same cytokine concentrations were evaluated in the plasma of HS for comparison. IL, interleukin; Th, T helper cell.Back to article page