VEGFA and neoplasm: Consistently, the microvessel density (MVD) levels in tumor tissues of the subcutaneous models bearing miR-30d- and sh-miR-30d-transfected PCa cells were significantly higher and lower than those of the respective controls (both P < 0.05, Fig. 1c and Additional file 1: Figure S3C), which were in line with the changes into VEGFA protein expression in different groups (both P < 0.05, Fig. 1d and Additional file 1: Figure S3D).