| Autor: |
Veaceslav, Fulga, Lucian, Rudico, Amalia Raluca, Balica, Anca Maria, Cimpean, Lilian, Saptefrati, Madalin-Marius, Margan, Marius, Raica |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Anticancer research. 35(2) |
| ISSN: |
1791-7530 |
| Popis: |
E-Cadherin is a marker with a controversial function. Its role is often interpreted in the context of the epithelial-mesenchymal transition. In ambiguous cases, it is used as a phenotypic marker of lobular subtype of breast carcinoma. It has been well-studied in primary cancer, but its expression after metastasis is not well-described. The aim of this study was to determine the evolution of E-cadherin expression in no special type (NST) primary breast carcinoma and to correlate this with that in distant, paired nodal metastases (LNM) and molecular classification.We processed 88 invasive breast carcinomas of NST type and their paired LNM. The specimens were formalin-fixed and paraffin embedded. Sections were immunostained for estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (Her2), basal cytokeratin CK5, nuclear protein Ki67 and E-cadherin with a Leica Bond-Max autostainer.The results obtained were grouped into four molecular subtypes: Luminal A, luminal B, HER2-overexpressing, and triple-negative/basal-like. We found that the frequency of E-cadherin expression was higher (95.45%) in primary sites than in LNM (72.73%). E-Cadherin from primary breast cancer correlated positively only with E-cadherin in LNM (p≤0.003). A single positive correlation of E-cadherin with ER (p≤0.007) LNM was found.E-Cadherin expression is not stable during the metastatic process. Its expression in LNM is lower than in primary sites. E-Cadherin expression in primary sites positively correlates with E-cadherin from LNM. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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