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A comparative study of osteopontin and MMP-2 protein expression in peripheral and central giant cell granuloma of the jaw / Estudo comparativo da expressão das proteínas osteopontina e MMP-2 no granuloma central e periférico de células gigantes de mandíbula
Mohtasham, Nooshin; Saghravanian, Nasrollah; Fatemi, Bahareh; Vahedi, Mehdi; Afzal-Aghaee, Monavar; Kadeh, Hamideh.
  • Mohtasham, Nooshin; Mashhad University of Medical Sciences. Oral and Maxillofacial Disease Research Center. School of Dentistry. Mashhad. IR
  • Saghravanian, Nasrollah; Mashhad University of Medical Sciences. Oral and Maxillofacial Disease Research Center. School of Dentistry. Mashhad. IR
  • Fatemi, Bahareh; Kerman University of Medical Sciences. School of Dentistry. Department of Endodontics. Kerman. IR
  • Vahedi, Mehdi; Kerman University of Medical Sciences. School of Dentistry. Department of Periodontology. Kerman. IR
  • Afzal-Aghaee, Monavar; Mashhad University of Medical Sciences. Social Medicine Specialist. Mashhad. IR
  • Kadeh, Hamideh; Zahedan University of Medical Science. Oral and Dental Disease Research Center. School of Dentistry. Zahedan. IR
Braz. j. otorhinolaryngol. (Impr.) ; 85(2): 150-156, Mar.-Apr. 2019. tab, graf
Article in English | LILACS | ID: biblio-1001542
ABSTRACT
Abstract

Introduction:

Oral peripheral and central giant cell granulomas are lesions with little-known etiology and pathogenesis.

Objective:

The aim of this study was to compare matrix metalloproteinases-2 and osteopontin protein expression in the multinucleated giant cells and mononuclear cells of the peripheral and central giant cell granuloma lesions.

Methods:

In this retrospective study, the presence of matrix metalloproteinases-2 and osteopontin in 37 cases of central giant cell granuloma and 37 cases of peripheral giant cell granuloma paraffin blocks were assessed by streptavidin-biotin immunohistochemistry. Independent sample t-test, Chi-square, Mann-Whitney tests and Spearman's rank correlation coefficient were used.

Results:

The osteopontin was expressed in both multinucleated giant cells and mononuclear cells in all cases of peripheral and central giant cells granulomas. However, the matrix metalloproteinases-2 expression was positive in 86.5% of giant cells and it was positive in all of mononuclear cells in peripheral giant cells granuloma. In central giant cells granulomas, 91.8% of giant cells and all mononuclear cells were positive for matrix metalloproteinases-2 marker. Percentage and Intensity of staining were significantly higher in central than peripheral giant cells lesions, for both markers (p ˂ 0.05).

Conclusion:

This study showed that the expression of osteopontin in giant cells supports the theory of osteolcastic nature of these cells. Also, the presence of osteopontin and matrix metalloproteinases-2 in mononuclear cells may indicate the monocyte-macrophage origin of these cells, as the differentiation of the precursors of the mononuclear stromal monocyte/macrophage to osteoclasts is possibly affected by the expression of osteolytic factors. Also, may be differences in biological behaviors of these lesions are associated with the level of osteopontin and matrix metalloproteinases-2 expression.
RESUMO
Resumo

Introdução:

Os granulomas periféricos e centrais de células gigantes são lesões com etiologia e patogênese pouco conhecidas.

Objetivo:

Comparar a expressão das proteínas metaloproteinases da matriz-2 e osteopontina nas células gigantes multinucleadas e células mononucleares no granuloma periférico e central de células gigantes.

Método:

Neste estudo retrospectivo, a presença de metaloproteinases da matriz-2 e osteopontina em 37 casos de granuloma central de células gigantes e 37 casos de granuloma periférico de células gigantes em blocos de parafina foi avaliada por imuno-histoquímica pela estreptavidina-biotina. Foram usados teste t para amostra independente, teste de qui-quadrado, Mann-Whitney e coeficiente de correlação de Spearman.

Resultados:

A osteopontina foi expressa em células gigantes multinucleadas e células mononucleares em todos os casos de granuloma periférico de células gigantes e granuloma central de células gigantes. No entanto, a expressão de metaloproteinases da matriz-2 foi positiva em 86,5% de células gigantes e foi positiva em todas as células mononucleares em granuloma periférico de células gigantes. Em granuloma central de células gigantes, 91,8% das células gigantes e todas as células mononucleares foram positivas para o marcador metaloproteinases da matriz-2. A porcentagem e intensidade de coloração em granuloma central de células gigantes foram significantemente maiores do que em granuloma periférico de células gigantes para ambos os marcadores (p ˂ 0,05).

Conclusão:

Este estudo mostrou que a expressão de osteopontina em células gigantes apoia a teoria da natureza osteoclástica dessas células. Além disso, a presença de osteopontina e metaloproteinases da matriz-2 em células mononucleares pode indicar a origem dos monócitos-macrófagos dessas células, uma vez que a diferenciação dos precursores do monócito/macrófago estromal mononuclear em osteoclastos é possivelmente afetada pela expressão de fatores osteolíticos. Além disso, as diferenças nos comportamentos biológicos dessas lesões estão associadas ao nível de expressão de osteopontina e metaloproteinases da matriz-2.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Granuloma, Giant Cell / Jaw Diseases / Matrix Metalloproteinase 2 / Osteopontin Type of study: Observational study / Risk factors Limits: Adolescent / Adult / Aged / Child / Female / Humans / Male Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2019 Type: Article Affiliation country: Iran Institution/Affiliation country: Kerman University of Medical Sciences/IR / Mashhad University of Medical Sciences/IR / Zahedan University of Medical Science/IR

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Full text: Available Index: LILACS (Americas) Main subject: Granuloma, Giant Cell / Jaw Diseases / Matrix Metalloproteinase 2 / Osteopontin Type of study: Observational study / Risk factors Limits: Adolescent / Adult / Aged / Child / Female / Humans / Male Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2019 Type: Article Affiliation country: Iran Institution/Affiliation country: Kerman University of Medical Sciences/IR / Mashhad University of Medical Sciences/IR / Zahedan University of Medical Science/IR