Fig. 3
SFN release from SFN-primed MSCs and in vitro toxicity of SFN-primed MSCs to U87MG cells and HUVECs. a Profile of in vitro SFN release by SFN-primed MSCs. b and c Viability of U87MG cells and HUVECs following exposure to SFN or SFN-primed MSCs. Two doses of MSCs were tested: 6 × 105 and 2 × 105 cells, corresponding to the release of about 3.2 μg and 1.1 μg SFN, respectively. The results obtained for U87MG cells and HUVECs cultured with culture medium alone were considered to correspond to 100% survival. Data are expressed as the mean of four wells ± SEM (n = 2) (*p < 0.05, versus U87MG cells or HUVECs cultured with culture medium alone)