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Immunohistochemical analysis for CD21, CD35, Caldesmon and S100 protein on dendritic cells types in oral lymphomas
Mesquita, Ricardo Alves; Araújo, Vera Cavalcanti de; Paes, Roberto Antônio Pinto; Nunes, Fábio Daumas; Souza, Suzana Cantanhede Orsini Machado de.
  • Mesquita, Ricardo Alves; Federal University of Minas Gerais. Dental School. Department of Oral Surgery, Oral Medicine and Oral Pathology. Belo Horizonte. BR
  • Araújo, Vera Cavalcanti de; School and Research Center of Dentistry "São Leopoldo Mandic". Department of Oral Pathology. Campinas. BR
  • Paes, Roberto Antônio Pinto; Hospital of Santa Casa of São Paulo. Department of Pathological Anatomy. São Paulo. BR
  • Nunes, Fábio Daumas; University of Sao Paulo. Dental School. Department of Oral Pathology. São Paulo. BR
  • Souza, Suzana Cantanhede Orsini Machado de; University of Sao Paulo. Dental School. Department of Oral Pathology. São Paulo. BR
J. appl. oral sci ; 17(3): 248-253, May-June 2009. ilus, tab
Article Dans Anglais | LILACS | ID: lil-514043
ABSTRACT

OBJECTIVE:

Follicular dendritic cells (FDCs) and interdigitating dendritic cells (IDCs) are dendritic cells found in lymphoid follicles, reactive follicles and in lymphomas. The goal of this study was to evaluate the presence and distribution of FDCs and IDCs in oral lymphomas. MATERIAL AND

METHODS:

Immunohistochemistry reactions were applied to 50 oral lymphomas using the antibodies anti-CD21, anti-CD35 and anti-caldesmon to FDCs, and anti-S100 protein to IDCs. Caldesmon+/FDCs and S100+/IDCs were quantified in Imagelab® software.

RESULTS:

FDCs revealed by CD21 and CD35 were positively stained in two cases of diffuse large B-cell lymphoma, one MALT lymphoma, and in one case of mantle cell lymphoma. FDCs were immunopositive to caldesmon in all cases, as well as IDCs to S100 protein. Burkitt lymphoma presented a lower amount of caldesmon+/FDCs and S100+/IDCs than diffuse large B-cell lymphoma and plasmablastic lymphoma of the oral mucosa type.

CONCLUSIONS:

The microenvironment determined by neoplastic lymphoid cells in oral lymphomas is responsible by the development and expression of dendritic cells types.
Sujets)

Texte intégral: Disponible Indice: LILAS (Amériques) Sujet Principal: Cellules dendritiques / Lymphome malin non hodgkinien / Tumeurs de la bouche / Cellules dendritiques folliculaires Limites du sujet: Humains langue: Anglais Texte intégral: J. appl. oral sci Thème du journal: Dentisterie Année: 2009 Type: Article / descriptif de projet Pays d'affiliation: Brésil Institution/Pays d'affiliation: Federal University of Minas Gerais/BR / Hospital of Santa Casa of São Paulo/BR / School and Research Center of Dentistry "São Leopoldo Mandic"/BR / University of Sao Paulo/BR

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Texte intégral: Disponible Indice: LILAS (Amériques) Sujet Principal: Cellules dendritiques / Lymphome malin non hodgkinien / Tumeurs de la bouche / Cellules dendritiques folliculaires Limites du sujet: Humains langue: Anglais Texte intégral: J. appl. oral sci Thème du journal: Dentisterie Année: 2009 Type: Article / descriptif de projet Pays d'affiliation: Brésil Institution/Pays d'affiliation: Federal University of Minas Gerais/BR / Hospital of Santa Casa of São Paulo/BR / School and Research Center of Dentistry "São Leopoldo Mandic"/BR / University of Sao Paulo/BR