We further investigated whether FOXD2-AS1 has an effect on CSCs phenotype of thyroid cancer cells via sponging miR-7-5p, and found that inhibition of miR-7-5p enhanced the sphere formation ability, SP fraction and CD133+ population repressed by downregulation of FOXD2-AS1 (Figures 6I–K). Here, FOXD2 is linked to thyroid gland carcinoma.