Among the 14 mRNAs in the prognostic model of progressive-stage STAD, 13 mRNAs (CHAF1A, VCAN, CDH11, PDGFRB, BMP1, ASPN, BGN, GINS4, COL6A3, ECT2, IBSP, KIF18B, and INCENP) were upregulated, while one mRNA (GCG) was downregulated. Here, COL6A3 is linked to gastric adenocarcinoma.