Prognostic value of microvessel density and p53 expression on the locoregional metastasis and survival of the patients with head and neck squamous cell carcinoma.
Cancer cells need to develop microvessels in order to grow and to establish metastatic foci. A role for the p53 protein in the regulation of the angiogenic process is suggested. This study aimed to investigate the relationship between immunohistochemical expression of microvessel density (MVD), measured by CD31 staining, and p53 protein with clinicopathologic factors, and survival in head and neck squamous cell carcinoma (n=70). Tumor angiogenesis was estimated by determining MVD in areas with the highest number of stained microvessels (hot spots). Clinicopathologic factors and immunohistochemical data were evaluated by χ statistical test and were submitted to binary logistic regression to analyze the risk of presence of lymph node metastasis. Factors that might predict survival were investigated using Cox proportional hazards tests. Differences were considered statistically significant when P<0.05. The percentage of p53-positive cells showed no association with clinicopathologic parameters and MVD. Patients with locoregional metastasis presented statistically significant higher MVD (P=0.043). Individuals presenting head and neck squamous cell carcinoma in posterior sites (P=0.022; OR=3.644) and higher MVD (P=0.039; OR=3.247) had a significant increase in risk of metastasis occurrence. Multivariate analysis showed that presence of lymph node metastasis was statistically significant for overall survival of head and neck carcinoma patients (P=0.006; OR =2.917). The present data suggest that MVD represents a promising diagnostic tool to identify individuals with increased risk for the development of metastatic disease, which is very indicative of poor prognosis.
§Department of Dentistry *Health Science Programme, Health Research Laboratory, Universidade Estadual de Montes Claros †Department of Nursing, Faculdades Integradas Pitágoras de Montes Claros, Minas Gerais ‡Department of Cellular Biology, Institute of Biological Sciences, Universidade de Brasília, Distrito Federal, Brazil.
Marcos Vinícius M
MV
de Oliveira
Erika P
EP
Pereira Gomes
Camila S
CS
Pereira
Ludmilla R
LR
de Souza
Lucas O
LO
Barros
Danilo C
DC
Mendes
André L S
AL
Guimarães
Alfredo M B
AM
De Paula
D000368:Aged; D014408:Biomarkers, Tumor / Q000378:metabolism*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis* / Q000401:mortality / Q000473:pathology; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000401:mortality / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D055806:Microvessels / Q000473:pathology*; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009389:Neovascularization, Pathologic; D019408:Platelet Endothelial Cell Adhesion Molecule-1 / Q000378:metabolism; D011237:Predictive Value of Tests; D011379:Prognosis; D012306:Risk; D016019:Survival Analysis; D016159:Tumor Suppressor Protein p53 / Q000235:genetics / Q000378:metabolism*
D014408:Biomarkers, Tumor; D019408:Platelet Endothelial Cell Adhesion Molecule-1; D016159:Tumor Suppressor Protein p53