Differential metallothionein expression in oral lichen planus and amalgam-associated oral lichenoid lesions

• Gabriela-Geraldo Mendes ^[1] ; João-Paulo-Silva Servato ^[3] ; Fabiana-Custódio Borges ^[1] ; Roberta-Rezende Rosa ^[1] ; Carla-Silva Siqueira ^[2] ; Paulo-Rogério de Faria ^[1] ; Adriano-Mota Loyola ^[1] ; Sérgio-Vitorino Cardoso ^[1]
  1. [1] Universidade Federal de Uberlândia

     Universidade Federal de Uberlândia

     Brasil

     
  2. [2] Universidade Federal de Goiás

     Universidade Federal de Goiás

     Brasil

     
  3. [3] Universidade de Uberaba

     Universidade de Uberaba

     Brasil

     

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• Localización: Medicina oral, patología oral y cirugía bucal. Ed. inglesa, ISSN-e 1698-6946, Vol. 23, Nº. 3 (May ), 2018
• Idioma: inglés
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• Resumen

  • Oral lichen planus (OLP) is a chronic inflammatory disease mediated by T cells, which manifests as reticular (white) or erosive (red) lesions, that are eventually painful. Oral lichenoid lesion (OLL) are distinguished from OLP by the presence of precipitating factors. The aim of this study was to evaluate whether the presence of metallothionein, which is involved in anti-apoptotic pathways and the anti-oxidative response, could serve as a differential diagnostic for OLP and OLL.

    We evaluated the expression of metallothionein in 40 cases of OLP and 20 cases of OLL using immunohistochemistry.

    White OLP has higher concentrations of metallothionein than red OLP in basal and parabasal layers. Moreover, metallothionein was more frequently observed in the cytoplasm and nuclei of basal cells in OLP patients compared to the same regions of OLL cases. Metallothionein levels are related to OLP severity and may contribute to a differential diagnosis between OLP and OLL.