In contrast, viscoelasticity showed a trend to decrease in animals treated with the B20 anti-VEGF-antibody but without reaching significance (mean |G∗| of tumor on days 6, 8 and 10: 7.1 kPa, 7.2 kPa and 6.4 kPa; p >  0.05 for each comparison; Table 1; Fig. 4a). The gene discussed is VEGFA; the disease is neoplasm.