EPM2A and neoplasm: To confirm the decreased expression of EPM2A in PCA, IHC was employed, and a lower H-score was observed in the tumor slides, which is consistent with the result that EPM2A was downregulated in PCA tissues (Figures 6A,B, 138.3 ± 1.83 vs. 120.5 ± 2.159, p = 0.0348).