Moreover, circ-FOXM1 promotes cell progression by sponging miR-1304-5p that targets PPDPF and MACC1 in non-small cell lung cancer [20]; upregulated circ-FOXM1 facilitates cell proliferation and invasion via absorbing miR-1231 and miR-1304 in papillary thyroid cancer [21]. Here, FOXM1 is linked to thyroid gland papillary carcinoma.