Based on the correlation coefficients of the genes, we chose POU1F1 and DLL3 to assess the tumor differentiation and EIF2AK3 to assess the eIF2/ATF4 pathway for further verification in eight patients by western blot experiment in Figure 3A. Western blot experiments with the clinical samples also demonstrated that CHST7 protein expression was correlated with EIF2AK3, DLL3, and POU1F1 (r = −0.412, r = 0.446, and r = 0.446, p < 0.05, respectively) (Figure 3B). This evidence concerns the gene ATF4 and neoplasm.