Mesenchymal Stromal Cells from Osteoarthritic Synovium Are a Distinct Population Compared to Their Bone-Marrow Counterparts regarding Surface Marker Distribution and Immunomodulation of Allogeneic CD4+ T-Cell Cultures

Figure 2

Surface marker expression on SM-MSCs and BM-MSCs. (a) Representative histograms of surface marker expression on SM-MSCs and BM-MSCs as detected by flow cytometry before coculture or monoculture. Red: background fluorescence; green: surface marker. (b) Marked differences between the groups were observed for CD19, CD146, and HLA-DR, as shown by representative histograms. See Table 1 for means and standard deviation.

(a)

(b)