Fig. 5
Proliferation and surface marker expression of colony-forming cells derived from non-sorted and sorted synovial cells. a Cell morphology of synovial cells 5 days after plating. b Fold increase of synovial cells. Bulk and sorted cells were plated at 200 cells/cm2 and cultured for 10 days. Bar shows mean ± SD. **p < 0.01 by the Friedman test followed by Steel-Dwass multiple comparisons (four donors, n = 6 for each donor). c Colony morphology of synovial cells. Bulk and sorted cells were plated on six-well plates at 100 cells/cm2, cultured for 14 days and stained with crystal violet. d Colony number/well. Bar shows mean ± SD (four donors n = 6 for each donor). e Surface markers of cultured MSCs. Bar shows mean ± SD (four donors)