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dc.contributor.authorBarros, Simone Souza Lobão Veras-
dc.contributor.authorHenriques, Águida Cristina Gomes-
dc.contributor.authorPereira, Karuza Maria Alves-
dc.contributor.authorMedeiros, Ana Miryam Costa de-
dc.contributor.authorGalvão, Hebel Cavalcanti-
dc.contributor.authorFreitas, Roseana de Almeida-
dc.identifier.citationBARROS, Simone Souza Lobão Veras et al. Immunohistochemical expression of matrix metalloproteinases in squamous cell carcinoma of the tongue and lower lip. Archives of Oral Biology , v. 56, n.8, p. 752-760, 2011.pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectMatrix metalloproteinasespt_BR
dc.titleImmunohistochemical expression of matrix metalloproteinases in squamous cell carcinoma of the tongue and lower lippt_BR
dc.description.resumoObjective To evaluate the immunohistochemical expression of MMP-1, -2, -7, -9 and -26 in oral squamous cell carcinomas (SCCs) according to tumour site and histological grade of malignancy. Study design Fifteen cases of SCC of the lower lip and 15 cases of tongue SCC were selected and divided into low grade malignancy (n = 17) and high grade malignancy (n = 13). Results Higher immunohistochemical expression of MMPs by neoplastic cells was observed in tongue SCCs, with a statistically significant difference for MMP-9 (P < 0.05). High-grade SCCs showed a higher expression of MMPs, except for MMP-2, with a statistically significant difference for MMP-7 (P < 0.05) and MMP-26 (P < 0.05). In addition, a direct association was observed between morphological scores of malignancy and MMP immunoreactivity, with the association being significant for MMP-7 and MMP-26. Conclusion The present results demonstrate the important role of MMPs in the development of SCCs of the lower lip and tongue.pt_BR
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