Immunhistochemical analysis for expression of calpain 1, calpain 2 and calpastatin in endometrial cancer.
Anticancer Res
; 30(7): 2837-43, 2010 Jul.
Article
em En
| MEDLINE
| ID: mdl-20683020
ABSTRACT
BACKGROUND:
Calpains (CAPN) are intracellular, non-lysosomal cytoplasmic cysteine endopeptidases and they are expressed ubiquitously. Their endogenous specific inhibitor is calpastatin. When calcium is present, calpastatin and calpain attach to each other, inhibiting the protease. The calpain system plays an important role in many processes including apoptosis, necrosis, ischaemia and exocytosis. The role of calpains in pathogenesis or further tumour progression has been proved in related studies. This study focused on the expression of the enzymes calpain 1, calpain 2 and the inhibitor calpastatin in normal and malignant endometrial tissue. MATERIALS ANDMETHODS:
Immunohistochemical stainings were performed on paraffin slices and staining intensity, percentage of positive cells and international ratio score were evaluated. RESULTS ANDCONCLUSION:
The endometrial carcinoma showed a higher expression of calpastatin than benign endometrial tissue.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas de Ligação ao Cálcio
/
Calpaína
/
Neoplasias do Endométrio
Limite:
Female
/
Humans
/
Middle aged
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article