Additionally, as shown in the results of HE staining (Fig. 4C), the groups of NEAT1-overexpressing displayed evidently more newly formed blood vessels than the blank cell groups and control vector groups, while the shlncRNANEAT1 groups with NEAT1 knockdown had markedly reduced numbers of blood vessels in tumor tissues than the control shScramble group. This evidence concerns the gene NEAT1 and neoplasm.