Fig. 5

Characteristic monochrome and merged images for CK5 (red) in ventral prostate (VP), dorsolateral prostate (DLP), and anterior prostate (AP) lobes of mice at 1, 3, and 6 months after immunization or infection. Nuclei are counterstained with DAPI (blue). a, b, d Naïve, CFA, and PBS groups. CK5+ (red) can be observed from 1 to 6 months. c EAP and E. coli groups. Basal cells positive for CK5+ (red) are observed in the first month, obviously decrease in the third month, and almost disappear in the sixth month