Figure 7
Transforming growth factor (TGF)-β1-stimulated intracellular protein expression for MMP-11 in osteoarthritis (OA) synovial fibroblast (SFBs) (n = 5) and rheumatoid arthritis (RA) SFBs (n = 4), as assessed by flow cytometry. Representative histograms from one RA and OA patient are shown following TGF-β1 stimulation for 48 h (upper panel) and the medians ± 75th and 25th percentiles of the mean fluorescence intensities are expressed for all patients as percent of the unstimulated control (= 100%; lower panel). *p ≤ 0.05 compared to OA.