The relationship of basement membrane to histologic grade of human prostatic carcinoma.

M. E. Fuchs, M. K. Brawer, M. A. Rennels, Raymond B Nagle

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

The presence or absence of basement membrane (BM) was examined in normal and neoplastic adult prostatic tissue as well as prostate cell lines using immunohistochemistry and electron microscopy. Immunohistochemical studies using antibodies directed against laminin and type IV collagen were done on 55 samples of human prostate representing various grades of prostate carcinoma. The percentage of glandular structures surrounded by BM was determined. Benign prostates (n = 15) had BM around 99% of the acini. Gleason Grade II adenocarcinoma (n = 9) had 65%, Grade III (n = 5) had 23%, Grade IV (n = 12) had 15%, and Grade V (n = 7) had 0% BM around glandular structures, respectively. None of the metastases (n = 7) had visible BM. By transmission electron microscopy, 32 prostates were examined for the glandular profile of BM. One hundred percent of the acini in the benign prostates (n = 17) had BM. Of the low grade carcinomas, Gleason I and II (n = 4), 44% of the acini had BM, and of the high grade carcinomas, Gleason IV and V (n = 7), 34% had BM. None of the metastases (n = 4) had BM by electron microscopy. We conclude that, in prostatic carcinoma, there is a progressive loss of BM with decreasing differentiation, and that in prostate carcinoma metastases there is a complete loss of epithelial BM.

Original languageEnglish (US)
Pages (from-to)105-111
Number of pages7
JournalModern Pathology
Volume2
Issue number2
StatePublished - Mar 1989

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Basement Membrane
Carcinoma
Prostate
Neoplasm Metastasis
Electron Microscopy
Collagen Type IV
Laminin
Transmission Electron Microscopy
Adenocarcinoma
Immunohistochemistry
Cell Line

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

Cite this

The relationship of basement membrane to histologic grade of human prostatic carcinoma. / Fuchs, M. E.; Brawer, M. K.; Rennels, M. A.; Nagle, Raymond B.

In: Modern Pathology, Vol. 2, No. 2, 03.1989, p. 105-111.

Research output: Contribution to journalArticle

Fuchs, M. E. ; Brawer, M. K. ; Rennels, M. A. ; Nagle, Raymond B. / The relationship of basement membrane to histologic grade of human prostatic carcinoma. In: Modern Pathology. 1989 ; Vol. 2, No. 2. pp. 105-111.
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