ACP3 and prostate neoplasm: Several other groups have reported encouraging results using xenoantigens, Castelo-Blano et al. treated mice bearing TRAMP-C2 prostate tumours over 10 days with 4 intraneoplastic injections of 1x107 PFU of oncolytic herpes simplex virus (oHSV) constructs expressing human PAP or mouse PAP (mPAP).