Expression of cadherins and catenins in paired tumor and non-neoplastic primary prostate cultures and corresponding prostatectomy specimens

J. Wang, D. Krill, M. Torbenson, Q. Wang, M. Bisceglia, J. Stoner, A. Thomas, P. DeFlavia, R. Dhir, M. J. Becich

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Cadherins are a family of transmembrane proteins that play a crucial role in cell differentiation, cell migration, and intercellular adhesion. Cadherins are associated with catenins through their highly conserved cytoplasmic domain. Down-regulation of E-cadherin protein has been shown in various human cancers. This study examined the expression of cadherins and associated catenins at the mRNA level. Paired tumor and non-neoplastic primary prostate cultures were obtained from surgical specimens. Quantitative multiplex fluorescence reverse transcriptase-polymerase chain reaction (QMF RT-PCR) and quantitative analysis were performed and correlated with immunostain results. Six of seven cases of neoplastic cultures showed moderately-to-markedly decreased levels of E-cadherin and P-cadherin mRNA. Similar losses of α-catenin and β-catenin mRNA were also observed. The results of QMF RT-PCR showed good correlation with the results of immunohistochemical studies based on corresponding formalin-fixed sections. In conclusion, this paper presents a coordinated down-regulation in the expression of E-cadherin and associated catenins at the mRNA and protein level in most of the cases studied. This down-regulation may play an important role in the pathogenesis of prostate cancer.

Original languageEnglish (US)
Pages (from-to)308-315
Number of pages8
JournalUrological Research
Volume28
Issue number5
DOIs
StatePublished - Jan 1 2000

Keywords

  • Adhesion molecules
  • Cadherin
  • Catenin
  • Prostate adenocarcinoma

ASJC Scopus subject areas

  • Urology

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