Acute inflammation promotes early cellular stimulation of the epithelial and stromal compartments of the rat prostate.

QUINTAR AA, DOLL A, LEIMGRUBER C, PALMERI CM, ROTH FD, MACCIONI M, MALDONADO CA.

WILEY-LISS, DIV JOHN WILEY & SONS INC

Lugar: New York; Año: 2010 vol. 70 p. 153 - 153

h3>Abstract BACKGROUND: It has been proposed that prostatic inflammation plays a pivotal role in the pathophysiology of benign hyperplasia and prostate cancer. However, little information is available about the prostatic reaction to bacterial compounds in vivo. Our aim was therefore to evaluate the early effects of bacterial infection on rat ventral prostate compartments. METHODS: Using a rat model of acute bacterial prostatitis by Escherichia coli, we analyzed the histological and ultrastructural changes in the prostate at 24, 48, and 72 hr postinfection. Prostatic tissues were immunostained for prostatic binding protein (PBP), ACTA2, ErbB1, and ErbB2 receptors, TUNEL, and markers of cell proliferation. Dot and Western blots for PBP, ACTA2, ErbB1, ErbB2, and TGFbeta1 were also performed. RESULTS: The prostatic epithelium became hypertrophied, with increases in PBP and ErbB1 expression at 24 hr postinfection. Moreover, inflamma