CASC2 and neoplasm: To verify the in vitro findings, subcutaneous xenotransplant tumor model was established in nude mice by injecting Huh-7 or HCCLM3 cells infected with human lncRNA CASC2-overexpressing lentivirus (lv-CASC2) or negative control lv-NC and CASC2-knockdown lentivirus (lv-sh-CASC2) or shRNA control lv-sh-NC.