title: Prognostic factors and c-erbB-2 expression in non-small-cell lung carcinoma (c-erbB-2 in non-small cell lung carcinoma).
abstract: The human proto-oncogene c-erbB-2/neu gene, which is structurally similar to the epidermal growth factor receptor gene, encodes a transmembrane protein of 185 kDa (p185) with tyrosine kinase activity. Paraffin-embedded sections from 42 cases with lung carcinoma were stained immunohistochemically using the Avidin-Biotin Horseradish Peroxidase method to search for c-erbB-2 reaction. Results were evaluated semiquantitatively. The c-erbB-2 expression from each case was compared according to tumor type, grade, mitotic activity, clinical stage and lymph node metastasis. Results were statistically analyzed by using chi-square tests. We were unable to detect a significant relation between c-erbB-2 expression and histological grade, nodal metastasis, number of mitotic figures or tumor type, but we did observe a statistically significant correlation between clinical stage and increased c-erbB-2 expression (p < 0.05). In our opinion, c-erbB-2 expression in human lung carcinomas may be useful for determining clinical outcome.
authors.affiliation: Department of Pathology, Gaziantep University, Turkey.
authors.forename: K
authors.initials: K
authors.lastname: Bakir
authors.forename: R
authors.initials: R
authors.lastname: Uçak
authors.forename: B
authors.initials: B
authors.lastname: Tunçözgür
authors.forename: L
authors.initials: L
authors.lastname: Elbeyli
mesh_terms: D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics*; D016009:Chi-Square Distribution; D015972:Gene Expression Regulation, Neoplastic; D018734:Genes, erbB-2; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods; D008175:Lung Neoplasms / Q000235:genetics*; D009367:Neoplasm Staging; D011379:Prognosis; D000090063:Proto-Oncogene Mas; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000378:metabolism*
chemical_list: D000090063:Proto-Oncogene Mas; D018719:Erb-b2 Receptor Tyrosine Kinases; C000715470:MAS1 protein, human