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Expression patterns of integrins on pleomorphic adenoma and adenoid cystic carcinoma study on specimens and in vitro investigation of the effects of extracellular matrix on the expression of these adhesion molecules

S. V. Lourenço S Kapas; D. M Williams; K Leite; Vera Cavalcanti de Araújo

Journal of Oral Pathology and Medicine v. 33, n. 9, p.574-580, October 2004

Oxford 2004

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  • Título:
    Expression patterns of integrins on pleomorphic adenoma and adenoid cystic carcinoma study on specimens and in vitro investigation of the effects of extracellular matrix on the expression of these adhesion molecules
  • Autor: S. V. Lourenço
  • S Kapas; D. M Williams; K Leite; Vera Cavalcanti de Araújo
  • Assuntos: CARCINOMA; INTEGRINAS; ADENOMA PLEOMÓRFICO
  • É parte de: Journal of Oral Pathology and Medicine v. 33, n. 9, p.574-580, October 2004
  • Descrição: Background: Pleomorphic adenoma (PA) and adenoid cystic carcinoma (ACC) are neoplasms of distinct behaviour, showing similar origin, cell components and marked presence of extracellular matrix (ECM). Interactions between cells and ECM are important in the biology of tumours, being partially mediated by integrins. This study investigated these interactions on PA and ACC using paraffin-embedded tissue and an in vitro model of these conditions. Methods: Expression of integrins in paraffin-embedded samples was assessed by immunohistochemistry. Cells from PA and ACC were characterized using immunofluorescence, and integrin patterns of expression were investigated on cells cultivated on different ECM proteins. Results: Luminal cells of both PA and ACC were more intensely positive for integrins than myoepithelial cells. In vitro studies revealed that PA cells expressed more integrins than ACC cells regardless the ECM protein present
  • Editor: Oxford
  • Data de publicação: 2004
  • Formato: p. 574-580.
  • Idioma: Inglês

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