Fig. 2. HUCMSCs and hUCMSC-EVs facilitate the growth of inoculated tumors.

a The tumor volumes in the mice from the groups implanted with H1299 cells alone or H1299 cells co-implanted with hUCMSCs or hUCMSC-EVs. b Measurements of the tumor weights of the H1299 xenograft tumors at 35 days post implantation. c Imaging of the tumors and tumor-bearing mice from the groups implanted with H1299 cells alone or H1299 cells co-implanted with hUCMSC-EVs or hUCMSCs at 35 days post implantation