Fig. 2

MVD, oxygen concentration, and VEGF level in A549 transplantation tumors after 12 days of treatment. a CD31 and CD105 expression in A549 transplantation tumors with endostatin (ES) or normal saline (NS) treatment for 8 days. Positive rate was lower in the ES than in the NS group. **P < 0.001 compared with NS group. CD105 expression was also lower in the ES group, although this was not statistically significant. b HIF-1α expression in ES and NS groups. c VEGF level was lower in the ES group, although this was not statistically significant