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Ann Endocrinol (Paris) ; 80(5-6): 324-328, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31703800

RESUMO

AIM: Some resected adrenal-confined adrenocortical carcinomas metastasize and others not. The present study was designed to evaluate the expression of metallothionein protein (MT) and minichromosome maintenance protein-2 (MCM2) in adrenocortical carcinomas and adrenocortical adenomas, and to test the correlation between this and adrenocortical carcinoma aggressiveness. MATERIALS AND METHODS: The study comprised 14 patients operated on for adrenocortical carcinoma, 15 operated on for adrenocortical adenoma and 2 with normal adrenals. Hematoxylin-eosin staining was used for histological evaluation under light microscopy, and sequential sections were used for MCM2 and MT staining. RESULTS: In normal adrenals, positive staining was weak for MT and zero for MCM2. Rates of positive staining for MT and MCM2 were significantly higher in adrenocortical carcinomas than in adrenocortical adenomas (P=0.008 and P<0.001, respectively). In adrenocortical carcinomas, a significant positive correlation was found between MCM2 staining and Weiss revisited score (P=0.022) but not for Weiss score, and a significant positive correlation was found between MCM2 and mitotic rate on histology (P=0.033). MCM2 but not MT staining was also shown to correlate significantly with stage IV carcinoma (P=0.008 and P=0.165, respectively). CONCLUSION: MCM2 and MT are overexpressed in adrenocortical carcinoma, and MCM2 expression correlates significantly with metastatic disease.


Assuntos
Neoplasias do Córtex Suprarrenal/química , Adenoma Adrenocortical/química , Carcinoma Adrenocortical/química , Metalotioneína/análise , Componente 2 do Complexo de Manutenção de Minicromossomo/análise , Neoplasias do Córtex Suprarrenal/patologia , Glândulas Suprarrenais/química , Adenoma Adrenocortical/patologia , Carcinoma Adrenocortical/patologia , Adulto , Idoso , Feminino , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica/patologia , Estudos Retrospectivos
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