The expression of p53, c-erbB-1 and c-erbB-2 molecules and their correlation with prognostic markers in patients with head and neck tumors.
Molecular prognostic and predictive factors have extensively been studied in different cancers during the past decades, some of which were found to be useful in diagnosis, follow up or even treatment of some malignant tumors. To assess the significance of c-erbB-1, c-erbB-2 and p53 expression in head and neck tumors among Iranian patients and their correlation with known prognostic factors, samples from 53 patients with squamous cell carcinomas of larynx and tongue were studied immunohistochemically. Strong immunoreactivity of c-erbB-1, c-erbB-2 and p53 was observed in 37 (70%), 40 (76%) and 37 (70%) of cases, respectively. The coexpression of these molecules was detected in 27 (50.9%) samples. Neither histological grading nor nodal involvement revealed correlation with c-erbB-1 and/or c-erbB-2 expression. No correlation was found between p53 expression and histological grade. However, a significant positive association was observed between p53 expression and nodal involvement. This data, which is the first report on head and neck squamous cell carcinomas (HNSCC) in Iran, indicates the significance of p53 protein expression which may result from p53 tumor suppressor gene inactivation in lymph node metastasis of HNSCC among Iranian patients.
Department of ENT, Shiraz University of Medical Sciences, Shiraz, Iran.
Bijan
B
Khademi
Farzaneh Mohammadalizadeh
FM
Shirazi
Mohammad
M
Vasei
Mehrnoosh
M
Doroudchi
Behrouz
B
Gandomi
Helmout
H
Modjtahedi
Abdul Mohammad
AM
Pezeshki
Abbas
A
Ghaderi
D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D066246:ErbB Receptors / Q000032:analysis*; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D007822:Laryngeal Neoplasms / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011379:Prognosis; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000032:analysis*; D014062:Tongue Neoplasms / Q000473:pathology; D016159:Tumor Suppressor Protein p53 / Q000032:analysis*
D066246:ErbB Receptors; D018719:Erb-b2 Receptor Tyrosine Kinases; D016159:Tumor Suppressor Protein p53