FOXD2 and neoplasm: RT-PCR was performed to measure the expression of FOXD2-AS1 and miR-7-5p in the tumor tissues, and the results showed that FOXD2-AS1 expression levels were decreased in the tumor tissues from FOXD2-AS1-silencing mice group compared with those from the scramble mice group; conversely, miR-7-5p expression levels were elevated (Figures 7A,B).