To validate the expression of prognostic-related molecules in the constructed ceRNA network, we selected four mRNAs (PSAT1, KIF23, MCM4 and CCNE1) and miRNAs (mir-195, mir-140, mir-205 and mir-200a) that are the most relevant to prognosis in the ceRNA network, and verified in the mRNA and miRNA expression profiles in an external dataset of endometrial carcinoma from GEO. The gene discussed is MCM4; the disease is endometrial carcinoma.