Imunoexpressão de PCNA e α-SMA em tecidos de crescimento gengival

Autores

  • Luciara Leão Viana Fonseca Universidade Federal de Minas Gerais
  • Ana Luiza Dias Leite de Andrade Universidade Federal do Rio Grande do Norte
  • Hébel Cavalcanti Galvão Universidade Federal do Rio Grande do Norte
  • Marize Raquel Diniz da Rosa Universidade Federal da Paraíba
  • Paulo Rogério Ferreti Bonan Universidade Federal da Paraíba

DOI:

https://doi.org/10.15448/1980-6523.2015.4.15303

Palavras-chave:

Crescimento gengival, Fenitoína, Nifedipina, Fibromatose gengival

Resumo

Objetivo: Este estudo avaliou a imunoexpressão do antígeno nuclear de proliferação celular (PCNA) e da isoforma-α da actina de músculo liso (α-SMA), bem como a espessura epitelial em pacientes com crescimento gengival induzido por drogas (DIGO) e fibromatose gengival idiopática (IGF).
Métodos: As amostras gengivais foram obtidas a partir de 11 usuários de nifedipina e fenitoína, 6 de pacientes com IGF e 4 com hiperplasia fibrosa inflamatória. Os espécimes foram submetidos à análise imuno-histoquímica e morfológica.
Resultados: Os resultados demonstraram que as células epiteliais PCNA positivas foram ligeiramente mais comuns em pacientes com IGF, mas não houve diferenças estatisticamente significativas entre os grupos estudados (p>0.05). Comparando-se os vasos contados com pericitos ou células musculares lisas α-SMA-positivas, não houve diferenças estatísticas, embora o grupo controle tenha apresentado uma contagem discretamente superior (p>0,05). A análise da espessura epitelial revelou que o grupo DIGO apresentou a maior média, evidenciando diferenças estatisticamente significantes em relação ao grupo controle (p=0,002).
Conclusão: Em conclusão, os resultados demonstraram semelhanças entre DIGO e IGF de acordo com a imunoexpressão de PCNA e α-SMA; entretanto, a espessura epitelial foi maior no grupo DIGO.

Referências

Shouda J, Nakamoto H, Sugahara S, Okada H, Suzuki H. Incidence of gingival hyperplasia caused by calcium antagonists in continuous ambulatory peritoneal dialysis patients. Adv Perit Dial. 1999;15: 153-5.

Bulut S, Uslu H, Ozdemir BH, Bulut OE. Analysis of proliferative activity in oral gingival epithelium in immunosuppressive medication induced gingival overgrowth. Head Face Med. 2006;2:13.

Shimizu Y, Kataoka M, Seto H, Kido J, Nagata T. Nifedipine induces gingival epithelial hyperplasia in rats through inhibition of apoptosis. J Periodontol. 2002;73:861-7.

Fu E, Nieh S, Hsiao CT, Hsieh YD, Wikesjö UM, Shen EC. Nifedipineinduced gingival overgrowth in rats: brief review and experimental study. J Periodontol. 1998;69:765-71.

Ellis JS, Seymour RA, Steele JG, Robertson P, Butler TJ, Thomason JM. Prevalence of gingival overgrowth induced by calcium channel blockers: a community-based study. J Periodontol. 1999;70:63-7.

Lucchesi JA, Cortelli SC, Rodrigues JA, Duarte PM. Severe phenytoininduced gingival enlargement associated with periodontitis. Gen Dent. 2008;56:199-203.

Kantarci A, Black SA, Xydas CE, Murawel P, Uchida Y, Yucekal-Tuncer B, et al. Epithelial and connective tissue cell CTGF/CCN2 expression in gingival fibrosis. J Pathol 2006;210:59-66.

Uzel MI, Kantarci A, Hong HH, Uygur C, Sheff MC, Firatli E, et al. Connective tissue growth factor in drug-induced gingival overgrowth. J Periodontol 2001;72:921-31.

Lobão DS, Silva LC, Soares RV, Cruz RA. Idiopathic gingival fibromatosis: a case report. Quintessence Int. 2007;38:699-704.

Akca AE, Ortakoğlu K, Pikdöken L, Deveci S. Histopathological evaluation of five unusual gingival enlargement cases. Mil Med. 2005;170:986-90.

Kantarci A, Nseir Z, Kim YS, Sume SS, Trackman PC. Loss of Basement Membrane Integrity in Human Gingival Overgrowth. J Dent Res. 2011;90:887-3.

Hall PA, Levison DA, Woods AL, Yu CC, Kellock DB, Watkins JA, et al. Proliferating cell nuclear antigen (PCNA) immunolocalization in paraffin sections: An index of cell proliferation with evidence of deregulated expression in some neoplasms. JPathol. 1990;162:285-94.

Kurki P, Vanderlann M, Dolbeare F, Gray J, Tan EM. Expression of proliferating cell nuclear antigen (PCNA) cyclin during the cell cycle. Exp Cell Res 1986;166:209-19.

Badid C, Mounier N, Costa AM, Desmoulière A.. Role of myofibroblasts during normal tissue repair and excessive scarring: Interest of their assessment in nephropathies. Histol Histopathol 2000;15:269-80.

Damasceno LS, Gonçalves Fda S, Costa e Silva E, Zenóbio EG, Souza PE, Horta MC. Stromal myofibroblasts in focal reactive overgrowths of the gingiva. Braz Oral Res. 2012;26:373-7.

Hinz B, Phan SH, Thannickal VJ, Galli A, Bochaton-Piallat ML, Gabbiani G. The myofibroblast: one function, multiple origins. Am J Pathol 2007;170:1807-16.

Bitu CC, Sobral LM, Kellermann MG, Martelli-Junior H, Zecchin KG, Graner E, et al. Heterogeneous presence of myofibroblasts in hereditary gingival fibromatosis. J Clin Periodontol. 2006;33:393-400.

Bonan PR, Kaminagakura E, Pires FR, Vargas PA, de Almeida OP. Histomorphometry and immunohistochemical features of Grade I (WHO) oral mucositis during radiotherapy of the head and neck cancer. Oral Dis 2007;13:170-6.

Coletta RD, Graner E. Hereditary gingival fibromatosis: A systematic review. J Periodontol 2006;77:753-64.

Bondon-Guitton E, Bagheri H, Montastruc JL. Drug-induced gingival overgrowth: a study in the French Pharmacovigilance Database. J Clin Periodontol. 2012;39:513-8.

Spolidorio LC, Spolidorio DM, Neves KA, Gonzaga HF, Almeida OP. Morphological evaluation of combined effects of cyclosporin and nifedipine on gingival overgrowth in rats. J Periodontal Res. 2002;37:192-5.

Cetinkaya BO, Acikgoz G, Aydın O, Korkmaz A, Keles GC. The Relationship between Proliferating Cell Nuclear Antigen Expression and Histomorphometrical Alterations in Cyclosporin A-Induced Gingival Overgrowth in Rats. Toxicol Pathol. 2006;34:180-6.

Castro LA, Elias LS, Oton-Leite AF, de Spíndula-Filho JV, Leles CR, Batista AC. Long-term effects of nifedipine on human gingival epithelium: a histopathological and immunohistochemical study. J Oral Sci. 2010;52:55-62.

Sobral LM, Montan PF, Martelli-Junior H, Graner E, Coletta RD. Opposite effects of TGF-β1 and IFN-γ on transdifferentiation of myofibroblast in human gingival cell cultures. J Clin Periodontol. 2007;34:397-406.

Hughes S, Gardiner T, Baxter L, Chan-Ling T. Changes in pericytes and smooth muscle cells in the kitten model of retinopathy of prematurity: implications for plus disease. Invest Ophthalmol Vis Sci. 2007;48:1368-79.

Downloads

Publicado

2016-03-21

Edição

Seção

Artigo Original