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

Citation
Jz. Wang et al., Expression of cadherins and catenins in paired tumor and non-neoplastic primary prostate cultures and corresponding prostatectomy specimens, UROL RES, 28(5), 2000, pp. 308-315
Citations number
44
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Urology & Nephrology","da verificare
Journal title
UROLOGICAL RESEARCH
ISSN journal
0300-5623 → ACNP
Volume
28
Issue
5
Year of publication
2000
Pages
308 - 315
Database
ISI
SICI code
0300-5623(200010)28:5<308:EOCACI>2.0.ZU;2-L
Abstract
Cadherins are a family of transmembrane proteins that play a crucial role i n cell differentiation, cell migration, and intercellular adhesion. Cadheri ns are associated with catenins through their highly conserved cytoplasmic domain. Down-regulation of E-cadherin protein has been shown in various hum an cancers. This study examined the expression of cadherins and associated catenins at the mRNA level. Paired tumor and nonneoplastic primary prostate cultures were obtained from surgical specimens. Quantitative multiplex flu orescence reverse transcriptase-polymerase chain reaction (QMF RT-PCR) and quantitative analysis were performed and correlated with immunostain result s. Six of seven cases of neoplastic cultures showed moderately-to-markedly decreased levels of E-cadherin and P-cadherin mRNA. Similar losses of alpha -catenin and beta -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 stud ied. This down-regulation may play an important role in the pathogenesis of prostate cancer.