Abstract
Objectives:
Study TGF-β1 pathway in bladder carcinoma.
Design and methods:
Eighty-one patients were enrolled: 16 chronic cystitis and 60 malignant bladder lesions; 15 schistosomal squamous cell carcinoma (SQCC), 45 transitional cell carcinoma (TCC). Five healthy individuals served as controls. mTGF-β1, protein, and its receptor expression in urine and bladder tissue were measured using in situ hybridization and immunohistochemical techniques, respectively.
Results:
Overexpression of TGF-mRNA in invasive TCC group was compared with superficial TCC, high grade TCC was compared with low grade, and SQCC was compared with TCC. TGF-β1 protein and its receptor I (TGF-βR1) were overexpressed in urine samples in malignant group compared with chronic cystitis and in SQCC group compared with TCC group. TGF-ß1 protein and its receptor were significantly increased in schistosomal malignant group compared with non-schistosomal group.
Conclusion:
Expression of TGF-ß1 and TGF-ßR1 could be used as biological markers of bladder carcinoma.
Copyright © 2013 Elsevier Inc. All rights reserved.
MeSH terms
-
Adult
-
Aged
-
Aged, 80 and over
-
Biomarkers, Tumor / genetics*
-
Biomarkers, Tumor / metabolism
-
Biomarkers, Tumor / urine
-
Carcinoma, Squamous Cell / genetics
-
Carcinoma, Squamous Cell / metabolism
-
Carcinoma, Squamous Cell / parasitology
-
Carcinoma, Transitional Cell / genetics
-
Carcinoma, Transitional Cell / metabolism
-
Carcinoma, Transitional Cell / parasitology
-
Female
-
Humans
-
Immunohistochemistry
-
In Situ Hybridization
-
Male
-
Middle Aged
-
Protein Serine-Threonine Kinases / metabolism
-
Protein Serine-Threonine Kinases / urine
-
Receptor, Transforming Growth Factor-beta Type I
-
Receptors, Transforming Growth Factor beta / metabolism
-
Schistosomiasis / genetics*
-
Schistosomiasis / metabolism
-
Schistosomiasis / parasitology
-
Signal Transduction
-
Transforming Growth Factor beta1 / genetics*
-
Transforming Growth Factor beta1 / metabolism
-
Transforming Growth Factor beta1 / urine
-
Urinary Bladder Neoplasms / genetics*
-
Urinary Bladder Neoplasms / metabolism
-
Urinary Bladder Neoplasms / parasitology
Substances
-
Biomarkers, Tumor
-
Receptors, Transforming Growth Factor beta
-
Transforming Growth Factor beta1
-
Protein Serine-Threonine Kinases
-
Receptor, Transforming Growth Factor-beta Type I