%0 Journal Article %T Immunohistochemical evaluation of transforming growth factor (TGF-b1) in malignant salivary gland tumours %A Dionisios Fotopoulos %A Nikolaos Papadogeorgakis %A Ioannis Iatrou %A Sofia Tseleni %A Alexandra Sklavounou %A Constantinos Alexandridis %J Hellenic Archives of Oral and Maxillofacial Surgery %D 2011 %I Hellenic Association for Oral and Maxillofacial Surgery %X The development of malignant tumours is defined by interactions between tumour cells and the stroma through cell membrane proteins and the release of cytokines. ¦©t has been indicated that high concentrations of transforming growth factor (TGF-b1) inaggressive tumours of the breast, prostate etc. can promotecarcinogenesis. Aim: The aim of this study is to examine TGF-b1expression in malignant salivary gland tumours and correlateit with clinical parameters. Material and methods: 54 specimens of malignant salivary gland tumours obtained between 1996 and 2008(12 years) were the material of the study. 54 cases were evaluated 29 male and 25 female, 16-75 years of age. Results: TGF-b1 expression was weak and focal, locatedin neoplastic cells, as well as in the stroma. A positive correlation to tumour staging was also detected. Conclusions: TGF-b1 expression in malignant salivary gland tumours and its positive correlation with tumour staging provide a useful basis for the further investigation of its potential role as a prognostic index. %K Transforming Growth Factor (TGF-b1) %K epithelial-mesenchymal transitions %K malignant salivary %K gland tumours %U http://www.haoms.org/haomsjournal/2011teuxos_1_article_1.pdf