The biological function of MAPK8IP1P2 in lymphatic metastasis of thyroid cancer was further CCK-8 assay showed that either upregulating or downregulating MAPK8IP1P2 had no significant effect on the cell growth of B-CPAP and K1 cells (Figures 3A–D). This evidence concerns the gene MAPK8IP1P2 and thyroid gland carcinoma.