Fig. 4: Exosomal miR-197-3p promotes tumor growth and angiogenesis in vivo.

A Tumor volume was measured every 4 days. B Photographs of xenograft tumors. C Tumor weight was measured. D CD31 expression in tumor xenografts was assessed by IHC. E TIMP2 and TIMP3 expression in tumor xenografts were assessed by IHC. Data were representative images or were expressed as the mean ± SD of n = 3 experiments. *P < 0.05, **P < 0.01.