title: Prognostic factors in laryngeal carcinoma: the role of apoptosis, p53, proliferation (Ki-67) and angiogenesis.
abstract: Even though the roles of different known or suggested prognostic factors in laryngeal cancer have been studied in detail, clinical stage at time of diagnosis and anatomic subsite of the tumour remain the only practical predictors of clinical outcome and offer the only guidelines in the planning of treatment. In this study, the relative roles of known demographic and clinical prognostic factors, in addition to four histopathological factors, were evaluated in a sample of 100 laryngeal carcinoma patients with multivariate analysis using the Cox regression model. In addition to advanced stage (stage III-IV) (relative hazard of death (HR) 8.9, p=0.01) and supraglottic disease (HR 5.6, p=0.02), high apoptotic index (HR 11.1, p=0.05) was significantly associated with poor survival. Cell proliferation, p53 and angiogenesis did not significantly affect the prognosis. In the future, high degree of apoptosis could be used to identify patients with poor prognosis in laryngeal cancer.
authors.affiliation: Department of Otorhinolaryngology, University of Oulu, Finland.
authors.forename: Heikki
authors.initials: H
authors.lastname: Teppo
authors.forename: Ylermi
authors.initials: Y
authors.lastname: Soini
authors.forename: Jukka
authors.initials: J
authors.lastname: Melkko
authors.forename: Petri
authors.initials: P
authors.lastname: Koivunen
authors.forename: Olli-Pekka
authors.initials: OP
authors.lastname: Alho
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017209:Apoptosis / Q000502:physiology*; D002294:Carcinoma, Squamous Cell / Q000098:blood supply* / Q000378:metabolism / Q000473:pathology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D020287:In Situ Nick-End Labeling; D019394:Ki-67 Antigen / Q000378:metabolism*; D007822:Laryngeal Neoplasms / Q000098:blood supply* / Q000378:metabolism / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D009389:Neovascularization, Pathologic / Q000473:pathology*; D011379:Prognosis; D016016:Proportional Hazards Models; D012907:Smoking; D016159:Tumor Suppressor Protein p53 / Q000096:biosynthesis / Q000235:genetics / Q000502:physiology*
chemical_list: D019394:Ki-67 Antigen; D016159:Tumor Suppressor Protein p53