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Previous issue date: 2007-03-09 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / The progression of the oral squamous cells carcinomas (OSCCs) seems to suffer influence from related factors to the host, as local and systemic immunologic response, which are essential to the antineoplasic defenses. The purpose of this study was evaluate the local immunity in 30 tongue and 20 lower lip SCC by immunohistochemistry method, utilizing antibodies anti-CD3, CD4, -CD8, -CD25 e -ζ(zeta), which immunoexpressions were compared considering the anatomical localization, the intensity of the inflammatory infiltrate into the front of invasion and metastases. The CD4/CD8+ ratio was calculated for each case and associate with the mentioned variable, being the intensity of the inflammatory infiltrated also compared with the anatomical localization and metastase and for this the cases had been grouped in two categories: (n = 10) absent/scarce inflammatory infiltrate; and (n = 40) moderate/intense infiltrate. Fisher?s exact test was performed (α= 0.05) and it was not observed any significant correlation between these groups with anatomical sites and metastases. With regard to the immunoexpression, the CD3+, CD4+, CD8+ and CD25+ cells count was higher in the lower lip SCCs while the anti-ζimmunomarcation was more evident in the non metastatic cases. Through the statistical analyses, it was verified that the CD3 exhibited positive-significant correlation with the inflammatory infiltrate (p = 0.023). Furthermore, antibodies against CD8 and CD25 cells were also significantly correlated with the inflammatory infiltrate (p = 0.002 and 0.030, respectively) and with the anatomical site (p = 0.004 and p = 0.004) mainly in the lower lip SCCs. CD4/CD8 ratio did not show significant association with metastase nor with anatomical localization. We conclude that the inflammatory infiltrated of the Bryne s (1998) system did not constitute an indicator of aggressiveness in the tongue and lower lip SCCs analyzed and that clinical behavior of the SCCs studied was related in part to the immunohistochemical profile of infiltrated the inflammatory present in tumoral invasion front / A progress?o dos carcinomas epiderm?ides orais (CEOs) parece sofrer influ?ncia de fatores relacionados ao hospedeiro, como a resposta imunol?gica local e sist?mica, as quais parecem ser essenciais para a defesa anti-neopl?sica. O presente estudo teve por objetivo analisar a imunidade local em 30 casos de CEs de l?ngua e 20 de l?bio inferior, atrav?s do m?todo da imuno-histoqu?mica, utilizando os anticorpos anti-CD3, -CD4, -CD8, -CD25 e -ζ(zeta), comparando a imunomarca??o em ambas as localiza??es, com a intensidade de infiltrado inflamat?rio no front de invas?o e com presen?a ou n?o de met?stase. A raz?o de c?lulas CD4/CD8+ foi calculada para cada caso e associada com as vari?veis mencionadas, sendo a intensidade do infiltrado inflamat?rio comparada tamb?m com a localiza??o anat?mica e met?stase e para isso os casos foram agrupados em duas categorias (infiltrado escasso ou ausente E/A e infiltrado intenso ou moderado I/M), sendo encontrado 10 casos na categoria E/A e 40 na categoria I/M. Aplicado o teste exato de Fisher n?o verificamos associa??o significativa destes grupos com o s?tio anat?mico ou com met?stase. Em rela??o ? imunomarca??o, a contagem das c?lulas CD3+, CD4+, CD8+ e CD25+ foi maior nos CEs de l?bio inferior e sem met?stase, enquanto que o anti-ζfoi mais expresso apenas nos casos sem met?stase. Atrav?s da an?lise estat?stica verificou-se que os anticorpos anti-CD3, anti-CD8 e anti-CD25 exibiram associa??o significativa positiva com o infiltrado inflamat?rio (p=0.023, p=0.002 e p=0.030, respectivamente); e os anticorpos anti-CD8 a anti-CD25 estiveram associados de forma positiva com a localiza??o anat?mica, ambos com valores de p=0.004, estando estes mais presentes nos CEs de l?bio inferior. A raz?o CD4/CD8 n?o exibiu associa??o significativa com met?stase nem com localiza??o anat?mica. Conclu?mos que o padr?o infiltrado inflamat?rio da grada??o histol?gica de malignidade de Bryne (1998) n?o constituiu um indicador de agressividade nos CEs de l?ngua e l?bio inferior analisados, e que o comportamento cl?nico dos CEs estudados esteve relacionado em parte ao perfil imuno-histoqu?mico do infiltrado inflamat?rio presente no front de invas?o tumoral
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/17168 |
| Date | 09 March 2007 |
| Creators | Silveira, Ericka Janine Dantas da |
| Contributors | CPF:59539224420, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4793681A0&dataRevisao=null, Figueiredo, Cl?udia Roberta Leite Vieira de, CPF:50417703449, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4763202H3&dataRevisao=null, Lins, Ruthn?ia Di?genes Alves Uch?a, CPF:87808838420, http://lattes.cnpq.br/4462076152744400, Freitas, Roseana de Almeida, CPF:28444361453, http://lattes.cnpq.br/9512014003639405, Galv?o, H?bel Cavalcanti, CPF:41291824472, http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4794937Z9, Queiroz, L?lia Maria Guedes |
| Publisher | Universidade Federal do Rio Grande do Norte, Programa de P?s-Gradua??o em Patologia Oral, UFRN, BR, Odontologia |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Format | application/pdf |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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