Figure 4 | Scientific Reports

Figure 4

From: Electrochemotherapy with intravenous, intratumoral, or combined administration of bleomycin in the treatment of colorectal hepatic metastases in a rat model

Figure 4

(A–C) Immunohistochemical sections of PCNA expression in the tumor tissue of animals undergoing ECT with i.v. BLM (A), i.t. BLM (B), or i.v. + i.t. (C) administration of BLM. PCNA-positive cells (arrows) are stained brown. Scale bars: 50 µm. (D) The diagram displays the quantitative analysis of PCNA-positive cells (semiquantitative index) in the tumor tissue per HPF. Data are given as mean ± SEM.

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