title: Prognostic value of the expression of p53 and bcl-2 in patients with laryngeal carcinoma.
abstract: Previous studies have yielded inconsistent results on the prognostic significance of p53 and bcl-2 in head and neck cancer. The aim of this study was the evaluation of p53 and bcl-2 protein expression in laryngeal squamous cell carcinoma and to clarify the relationship between them. All patients with laryngeal carcinoma were treated during the period 1991-1993. In the present study p53 and bcl-2 expression in paraffin sections from 50 cases of laryngeal squamous cell carcinoma were analysed and correlated with routine clinico-pathological parameters. The expressions of p53 and bcl-2 were examined by immunohistochemical staining. Immunoreactivity for p53 was observed in 45 (90%) of carcinomas and bcl-2 immunoreactivity in 7 (14%). No significant correlation between the p53 or bcl-2 expression and patients' T- or N-stage, histological grading, or overall survival was found.
authors.affiliation: Otolaryngology Department, Medical Academy, Lublin, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Klatka
mesh_terms: D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis; D001707:Biopsy, Needle; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D016009:Chi-Square Distribution; D046508:Culture Techniques; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007822:Laryngeal Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011336:Probability; D011379:Prognosis; D011446:Prospective Studies; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000032:analysis / Q000378:metabolism*; D012680:Sensitivity and Specificity; D016019:Survival Analysis; D016159:Tumor Suppressor Protein p53 / Q000032:analysis / Q000378:metabolism*
chemical_list: D014408:Biomarkers, Tumor; D019253:Proto-Oncogene Proteins c-bcl-2; D016159:Tumor Suppressor Protein p53