Overall, The data show us that Keap1, Nrf2, PPIA, Prdx6 and CD147 were not correlated with tumor stage (T1 to T3), lymph node status (N0 to N1), pathological grade (GI to GIII) (P>0.05) (Fig. S1, Fig. S2). The gene discussed is PPIA; the disease is neoplasm.