CD44/CD24 immunophenotypes on clinicopathologic features of salivary glands malignant neoplasms

Author(s)

Soave, Danilo Figueiredo ^[1] ; Oliveira da Costa, Joao Paulo ^[1] ; da Silveira, Giorgia Gobbi ^[1] ; Fraga Ianez, Renata Carolina ^[2] ; de Oliveira, Lucinei Roberto ^[1] ; Lourenco, Silvia Vanessa ^[3] ; Ribeiro-Silva, Alfredo ^[1]

Affiliation

^[1] Univ Sao Paulo, Ribeirao Preto Med Sch, Dept Pathol, BR-14049900 Sao Paulo - Brazil

^[2] AC Camargo Hosp, Dept Pathol, Sao Paulo - Brazil

^[3] Univ Sao Paulo, Sch Dent, Gen Pathol Dept, BR-14049900 Sao Paulo - Brazil

• Document type: Journal article
• Source: DIAGNOSTIC PATHOLOGY; v. 8, FEB 18 2013.
• Web of Science Citations: 13

Abstract

Background: Salivary Glands Malignant Neoplasms (SGMNs) account for 3-6% of head and neck cancers and 0.3% of all cancers. Tumor cells that express CD44 and CD24 exhibit a stem-cell-like behavior. CD44 is the binding site for hyaluronic acid, and CD24 is a receptor that interacts with P-selectin to induce metastasis and tumor progression. The present study aims to evaluate the expression of CD44 and CD24 on SGMNs and correlated these data with several clinicopathologic features. Methods: Immunohistochemical stains for CD44 and CD24 were performed on tissue microarrays containing SGMN samples from 69 patients. The CD44, CD24 and CD44/CD24 expression phenotypes were correlated to patient clinicopathologic features and outcome. Results: CD44 expression was associated with the primary site of neoplasm (p = 0.046). CD24 was associated with clinical stage III/IV (p = 0.008), T stage (p = 0,27) and lymph node (p = 0,001). The CD44/CD24 profiles were associated with the primary site of injury (p = 0.005), lymph node (p = 0.011) and T stage (p = 0.023). Univariate analysis showed a significant relationship between clinical staging and disease-free survival (p = 0.009), and the overall survival presents relation with male gender (p = 0.011) and metastasis (p = 0.027). Conclusion: In summary, our investigation confirms that the clinical stage, in accordance with the literature, is the main prognostic factor for SGMN. Additionally, we have presented some evidence that the analysis of isolated CD44 and CD24 immunoexpression or the two combined markers could give prognostic information associated to clinicopathologic features in SGMN. Virtual Slides: The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1284611098470676. (AU)

• FAPESP's process: 11/18587-2 - Influence of hypoxia on CD44/CD24 adhesion molecules expression in biopsies and cell lines of benign and malignant salivary gland neoplasm
• Grantee: Alfredo Ribeiro da Silva
• Support type: Regular Research Grants