Fig. 1

Characteristic images of glandular histopathological findings in ventral prostate (VP), dorsolateral prostate (DLP), and anterior prostate (AP) lobes of mice at 1, 3, and 6 months after immunization or infection (H&E stain, Bar = 100 µm). a, b, d Naïve, CFA, and PBS groups without obvious histopathological changes. CFA group with very mild inflammation at 6 months. c, e EAP and E. coli groups with inflammation characterized by infiltration of lymphocytes, hyperplasia and heteromorphism of glandular epithelium, large and intensely stained nucleolus, and karyokinesis