title: P16, c-erbB2 and Ki67 immunoexpression in urothelial carcinomas of the bladder.
abstract: The study included a total of 28 cases of urothelial carcinomas, which were analyzed histopathologically and immunohistochemically using anti-human p16, c-erbB2 and Ki67 antibodies and the LSAB/HRP work system. Histopathological analysis revealed the presence of urothelial carcinomas with different degrees of differentiation and invasion in the lamina propria or muscularis propria. The immunostain for p16, c-erbB2 and Ki67 was present at the nuclear and cytoplasmic level, respectively at membrane and nuclear level. Immunoreactions had quantified values, which were statistically correlated with the degree of differentiation in case of c-erbB2 or depth of invasion for p16. Tumor activity status and the risk of progression of bladder urothelial carcinomas can be assessed objectively using the antibody panel consisting of p16, c-erbB2 and Ki67.
authors.affiliation: Department of Pathology, University of Medicine and Pharmacy of Craiova, Romania. astepan76@yahoo.com
authors.forename: A
authors.initials: A
authors.lastname: Stepan
authors.forename: Cristiana
authors.initials: C
authors.lastname: Simionescu
authors.forename: Cl
authors.initials: C
authors.lastname: Mărgăritescu
authors.forename: Raluca
authors.initials: R
authors.lastname: Ciurea
mesh_terms: D002454:Cell Differentiation; D049109:Cell Proliferation; D019941:Cyclin-Dependent Kinase Inhibitor p16 / Q000276:immunology*; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000378:metabolism*; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000378:metabolism*; D001749:Urinary Bladder Neoplasms / Q000378:metabolism* / Q000473:pathology*; D019459:Urothelium / Q000378:metabolism* / Q000473:pathology*
chemical_list: D019941:Cyclin-Dependent Kinase Inhibitor p16; D019394:Ki-67 Antigen; D018719:Erb-b2 Receptor Tyrosine Kinases; C508053:ERBB2 protein, human