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. 2021 Sep 23;11:18936. doi: 10.1038/s41598-021-98410-0

Figure 6.

Figure 6

IHC staining of DPP4 expression in PCa tumor tissue microarray (TMA). (A) A semi-quantitative 4-tire scoring system in tumor cells: 0 (0%, no staining), 1 (< 10%, weak and focally staining), 2 (10–50%, medium and focally staining), or 3 (> 50%, strong and diffusely staining). (B) Correlation of DPP4 expression with Gleason scores in tumors and tumor-matched benign controls. (C) Comparison of DPP4 expressional pattern in tumors and tumor-matched benign controls. *P < 0.05; **P < 0.01, ***P < 0.001.