title: p130Cas, E-cadherin and β-catenin in human transitional cell carcinoma of the bladder: expression and clinicopathological significance.
abstract: OBJECTIVE
  To investigate the effects of junction protein, p130 Crk-associated substance (p130Cas), and adhesion molecules, E-cadherin and β-catenin, on the biological behavior of transitional cell carcinoma of the bladder.
  
  
  METHODS
  In 72 paraffin embedded specimens of transitional cell carcinoma of the bladder and 20 normal controls, the expression of p130Cas, E-cadherin and β-catenin was examined by quantum dot-based immunofluorescence histochemistry (QD-IHC) and conventional immunohistochemistry (IHC).
  
  
  RESULTS
  QD-IHC was consistent with IHC in detecting the expression of the three molecules (P > 0.05 for all comparisons). The positive expression rate of p130Cas in bladder cancer tissues increased more significantly than that in normal bladder tissues (P < 0.001). Similarly, the aberrant expression rates of E-cadherin and β-catenin in bladder cancer tissues were significantly higher than those in normal bladder tissues (P < 0.001 for both comparisons). The expression of each molecule was correlated with tumor pathological grade and clinical stage (P < 0.05 for all comparisons), but not with tumor number and size (P > 0.05 for all comparisons). Furthermore, negative correlations were found between the expression intensities of p130Cas and E-cadherin or β-catenin in transitional cell carcinoma of the bladder (P < 0.05 for both comparisons).
  
  
  CONCLUSIONS
  p130Cas, E-cadherin and β-catenin might represent useful predictors of malignant degree of transitional cell carcinoma of the bladder.
authors.affiliation: Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
authors.forename: Xiangkun
authors.initials: X
authors.lastname: Hu
authors.forename: Yuan
authors.initials: Y
authors.lastname: Ruan
authors.forename: Fan
authors.initials: F
authors.lastname: Cheng
authors.forename: Weimin
authors.initials: W
authors.lastname: Yu
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Zhang
authors.forename: Stéphane
authors.initials: S
authors.lastname: Larré
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000378:metabolism*; D015820:Cadherins / Q000378:metabolism*; D002295:Carcinoma, Transitional Cell / Q000378:metabolism* / Q000473:pathology; D050719:Crk-Associated Substrate Protein / Q000378:metabolism*; D005260:Female; D005455:Fluorescent Antibody Technique; D006801:Humans; D008297:Male; D008875:Middle Aged; D060787:Neoplasm Grading / Q000379:methods; D009367:Neoplasm Staging / Q000379:methods; D011237:Predictive Value of Tests; D045663:Quantum Dots; D001749:Urinary Bladder Neoplasms / Q000378:metabolism* / Q000473:pathology; D051176:beta Catenin / Q000378:metabolism*
chemical_list: C493841:BCAR1 protein, human; D014408:Biomarkers, Tumor; C495270:CTNNB1 protein, human; D015820:Cadherins; D050719:Crk-Associated Substrate Protein; D051176:beta Catenin