Figure 6.

The ability of DBMSCs to form tube networks and their inhibitory effects on HUVEC formation of tube networks. After 14 h, H₂O₂ untreated DBMSCs (a) and DBMSC pretreated with 50 μM H₂O₂ (b) and 100 μM H₂O₂ (c); DBMSCs cultured in 50 μM H₂O₂ (d) or 100 μM H₂O₂ were unable to form tube networks. The addition of H₂O₂ untreated DBMSCs (f) and DBMSC pretreated with 50 μM H₂O₂ (g) and 100 μM H₂O₂ (h) to HUVEC completely inhibited HUVEC formation of tube networks as compared to H₂O₂-untreated HUVEC (i). Experiments were carried out in triplicate DBMSCs (passage 3) prepared from five individual placentae.