Additional file 1: Figure S1. of CPA-7 influences immune profile and elicits anti-prostate cancer effects by inhibiting activated STAT3

In vivo level of pSTAT3 after CPA-7 treatment. RM9 tumor tissues were collected 12 days after CPA-7 treatment. Immunohistochemistry was performed and pSTAT3 positive cells were stained in purple. Nuclei of pSTAT3 negative tumor cells were in blue. (TIF 1104 kb)