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. 2018 Sep 3;18:75. doi: 10.1186/s12894-018-0391-y

Fig. 4.

Fig. 4

AQP immunoperoxidase labelling of prostate cancer specimens. Intense expression with distinct labelling at the cell borders in a sample of a low-risk tumour (a), less intense expression of AQP 3 with alternating AQP-positive and AQP-negative tumour cells found in an intermediate-risk tumour (b). Complete loss of AQP 3 expression in a high-risk tumour (c). Weak expression of AQP 4 in an intermediate-risk tumour (d). Heterogeneous expression of AQP 5 (e) and expression of AQP 7 (f) in PC. AQP 9 was not detected (g)