Survival analysis revealed that the RNA expression levels for the COL3A1, GPR158 and PITHD1 genes were significantly correlated with that shown on the protein expression levels, proposing them as prognostic factors for ovarian carcinoma (COL3A1) and in MC (GPR158) and CCC histotypes (PITHD1). The gene discussed is COL3A1; the disease is ovarian carcinoma.