PMID- 10226596 OWN - NLM STAT- MEDLINE DCOM- 19990520 LR - 20141120 IS - 0250-7005 (Print) IS - 0250-7005 (Linking) VI - 19 IP - 1A DP - 1999 Jan-Feb TI - Cell-cell adhesion molecules and their associated proteins in bladder cancer cells and their role in mitogen induced cell-cell dissociation and invasion. PG - 547-52 AB - Three bladder cell lines (EJ138, RT112/84 and T24/83) were used to examine the expression of E-cadherin, desmoglein, their associated proteins and their role in cell-cell dissociation and invasion using hepatocyte growth factor/scatter factor (HGF/SF). Both immunocytochemistry and Western blotting revealed that RT112/84 cells expressed high levels of E-cadherin, alpha-, beta-, and gamma-catenins. However, there was no expression of E-cadherin and very low levels of alpha- and beta-catenin expression detected in both EJ138 and T24/83 cells. In contrast, all three cell lines were found to express desmoglein, desmoplakin and c-Met. An in vitro invasion assay showed that both EJ138 and T24/83 cells were highly invasive, however, RT112/84 cells were found to have very limited invasion. Invasion of RT112/84 cells was significantly increased by inclusion of either antibody to E-cadherin or motogen (HGF/SF) in the culture medium. This did not appear to be the case for EJ138 and T24/83 cells. Using immunoprecipitation, HGF/SF induced tyrosine phosphorylation of beta-catenin but not desmoplakin. It is concluded that E-cadherin plays a stronger role than desmosomal cadherin in the control of the in vitro invasion of bladder cancer cells. Activation of beta-catenin and subsequent dysfunction of E-cadherin may be a key mechanism in the induction of invasion by the motogen, HGF/SF. FAU - Davies, G AU - Davies G AD - University Department of Surgery, University of Wales College of Medicine, Heath Park, Cardiff, U.K. DAVIESG11@cf.ac.uk FAU - Jiang, W G AU - Jiang WG FAU - Mason, M D AU - Mason MD LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 RN - 0 (CTNNB1 protein, human) RN - 0 (CTNNB1 protein, mouse) RN - 0 (Cadherins) RN - 0 (Cytoskeletal Proteins) RN - 0 (DSP protein, human) RN - 0 (Desmogleins) RN - 0 (Desmoplakins) RN - 0 (Dsp protein, mouse) RN - 0 (Trans-Activators) RN - 0 (beta Catenin) RN - 67256-21-7 (Hepatocyte Growth Factor) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) SB - IM MH - Animals MH - Cadherins/*analysis MH - Cytoskeletal Proteins/*analysis/metabolism MH - Desmogleins MH - Desmoplakins MH - Hepatocyte Growth Factor/pharmacology MH - Humans MH - Immunohistochemistry MH - Mice MH - Neoplasm Invasiveness MH - Phosphorylation MH - Proto-Oncogene Proteins c-met/analysis MH - *Trans-Activators MH - Tumor Cells, Cultured MH - Urinary Bladder Neoplasms/chemistry/*pathology MH - beta Catenin EDAT- 1999/05/05 00:00 MHDA- 1999/05/05 00:01 CRDT- 1999/05/05 00:00 PHST- 1999/05/05 00:00 [pubmed] PHST- 1999/05/05 00:01 [medline] PHST- 1999/05/05 00:00 [entrez] PST - ppublish SO - Anticancer Res. 1999 Jan-Feb;19(1A):547-52.