Canine Prostatic Intraepithelial Neoplasia: Is the Comparative Model Relevant?

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Abstract

BACKGROUND. Histologic sections from an archival collection of a veterinary teaching hospital were examined to determine the likelihood of detection of canine high-grade prostatic intraepithelial neoplasms (HGPIN), as a prelude to use of the canine model of prostatic carcinogenesis for chemopreventive strategies. METHODS. Tissue specimens representing clinically healthy (normal) prostate glands, benign prostatic hyperplasia, and prostatic carcinoma were examined in one tissue plane for histological evidence of HGPIN. RESULTS. No histological evidence of HGPIN was detected in 20 normal prostate glands or 95 prostate glands with benign prostatic hyperplasia. Seven of 20 prostatic carcinomas had synchronous HGPIN. CONCLUSIONS. Histological evidence of HGPIN is unlikely to be detected in the healthy or hyperplastic canine prostate gland with the clinically-procured biopsy. This might diminish the usefulness of canine HGPIN in temporal studies of chemoprevention of prostate cancer. HGPIN was found simultaneously with prostatic carcinoma in more than one-third of the carcinomas examined.

Original languageEnglish (US)
Pages (from-to)314-317
Number of pages4
JournalProstate
Volume58
Issue number3
DOIs
StatePublished - Feb 15 2004

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Keywords

  • Animal model
  • Canine
  • Prostate cancer
  • Prostatic intraepithelial neoplasia

ASJC Scopus subject areas

  • Urology

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