title: Heat shock protein-90, IL-6 and IL-10 in bladder cancer.
abstract: The progression of transitional-cell carcinomas of the bladder is associated with changes in general and local immune status. To understand the factors involved in the progression of transitional cell carcinoma and in the maintenance of an efficient anti-tumoural response, in this study we investigated by immunohistochemistry expression of HSP-90, IL-6 and IL-10 proteins in 56 surgical specimens obtained from superficial and deeply invasive bladder carcinomas. Of the 56 bladder carcinoma 52 (92.9%) expressed HSP-90, 48 (85.7%) IL-6 and 45 (80.3%) IL-10. High-grade and muscle-invasive tumours contained significantly higher levels of HSP-90 and IL-6 antibodies than low-grade and superficial tumours (p < 0.05). Linear regression showed a significant correlation between HSP-90 and IL-10 (p = 0.022) but not between HSP-90 and IL-6, or IL-6 and IL-10 expression. The variable quantities of HSP-90, IL-6 and IL-10 in the high-grade bladder carcinomas studied suggest that these proteins have independent functional roles and may be the immunogenic targets for an anti-tumoural response.
authors.affiliation: Department of Experimental Medicine and Pathology (Section of Uropathology), University La Sapienza, Rome, Italy. mrcardillo@uniroma1.it ME2494@mclink.it
authors.forename: M R
authors.initials: MR
authors.lastname: Cardillo
authors.forename: P
authors.initials: P
authors.lastname: Sale
authors.forename: F
authors.initials: F
authors.lastname: Di Silverio
mesh_terms: D000368:Aged; D002278:Carcinoma in Situ / Q000378:metabolism / Q000473:pathology; D002291:Carcinoma, Papillary / Q000378:metabolism / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000378:metabolism / Q000473:pathology; D002295:Carcinoma, Transitional Cell / Q000378:metabolism* / Q000473:pathology; D018841:HSP90 Heat-Shock Proteins / Q000378:metabolism*; D006801:Humans; D007150:Immunohistochemistry; D016753:Interleukin-10 / Q000378:metabolism*; D015850:Interleukin-6 / Q000378:metabolism*; D016014:Linear Models; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000378:metabolism*; D009367:Neoplasm Staging; D012189:Retrospective Studies; D001749:Urinary Bladder Neoplasms / Q000378:metabolism* / Q000473:pathology
chemical_list: D018841:HSP90 Heat-Shock Proteins; D015850:Interleukin-6; D009363:Neoplasm Proteins; D016753:Interleukin-10