CCNE1 and non-small cell lung carcinoma: Under conditions of low E-cadherin (CDH1) and high N-cadherin (CDH2), TGFB1, and TGFB2 in active PLK1-expressed NSCLC cells, the expression of cell cycle factors including FOXM1, CCNB1, CCNE1, and MKI67 was highly correlated with PLK1 expression (Fig. S2b).