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- W3193522897 abstract "Background: Claudins are important transmembrane proteins in tight junction. The role of intercellular tight junctions in breast epithelial cells is traditionally thought to be in maintaining polarity and barrier function. However, claudin-4, a tight junction protein, is overexpressed in breast tumor cells compared to normal epithelial cells, which generally corresponds to loss in polarity and can provide valuable information about biology of the tumor. A prospective clinical study was conducted to assess the expression claudin-4 in patients with breast cancer and its correlation with hormone receptors – estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2)-neu.Materials and Methods: The study included 102 biopsy-proven breast carcinoma patients. The biopsy samples were evaluated immunohistochemistry for expression of ER, PR, HER2-neu, and claudin-4. The expression of claudin-4 was correlated with ER, PR, and HER2-neu.Results: In the study, we found that out of 26 cases of high claudin-4, 25 cases (96.15%) were ER negative and P < 0.001, which was significant. Similar results were found with PR-negative cases. Whereas, out of 76 cases with low claudin-4, 54 cases (71.05%) were HER2-neu negative and P = 0.022, which was significant.Conclusions: Claqudin-4 expression has a negative correlation with ER and PR and has a positive correlation with HER2-neu. Hence, it can be effectively utilized as a prognostic and therapeutic marker in breast cancer in the future." @default.
- W3193522897 created "2021-08-30" @default.
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- W3193522897 date "2022-01-01" @default.
- W3193522897 modified "2023-09-27" @default.
- W3193522897 title "Immunoexpression of claudin-4 and correlation with estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2-neu in breast cancer" @default.
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- W3193522897 doi "https://doi.org/10.4103/jcrt.jcrt_1909_20" @default.
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