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Bead Aggregation Assays for the Characterization of Putative Cell Adhesion Molecules
Published on: October 17, 2014
The epithelial cell adhesion molecule (Ep-CAM) as a morphoregulatory molecule is a tool in surgical pathology
Manon J Winter1, Iris D Nagtegaal, J Han J M van Krieken
1Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands.
Abstract:
Cell adhesion receptors (CAMs) are actively involved in regulating various cell processes, including growth, differentiation, and cell death. Therefore, CAMs represent a large group of morphoregulating molecules, mediating cross-talk between cells and of cells with their environment. From this perspective, CAMs do contribute to cells and tissue organization, and in diseased tissue, to the disease development and biological characteristics. Therefore, observed changes in expression patterns of adhesion molecules may contribute to establish a diagnosis. A distinct shift in expression patterns in neoplastic epithelium has been described, for example for cadherins, integrins, and CD44. A relatively novel cell CAM, Ep-CAM, was first reported to be a pan-carcinoma antigen, although it is rather a marker of epithelial lineage. Several antibodies directed to Ep-CAM have been generated, and many epithelial tissues and their neoplastic appendages have been studied. This article outlines the results of these studies. Based on the results of these studies, we conclude that Ep-CAM immunohistochemistry can be a useful tool in the diagnosis of disturbed epithelial tissues.
Insights
Cell adhesion molecules (CAMs) regulate cell processes and tissue organization. EpCAM immunohistochemistry shows promise as a diagnostic tool for disturbed epithelial tissues, aiding in disease diagnosis.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Cell adhesion receptors (CAMs) are crucial for cell growth, differentiation, and death, mediating cell-cell and cell-environment interactions.
- CAMs play a role in tissue organization and influence disease development and characteristics in pathological conditions.
- Altered expression patterns of adhesion molecules, such as cadherins, integrins, and CD44, are observed in neoplastic epithelium.
Purpose of the Study:
- To review studies investigating the cell adhesion molecule EpCAM (Epithelial Cell Adhesion Molecule).
- To evaluate the utility of EpCAM as a diagnostic marker in epithelial tissues.
- To assess the role of EpCAM in understanding epithelial lineage and neoplastic changes.
Main Methods:
- Review of existing studies utilizing antibodies against EpCAM.
- Analysis of EpCAM expression patterns in various epithelial tissues and neoplastic conditions.
- Immunohistochemical assessment of EpCAM in disturbed epithelial tissues.
Main Results:
- EpCAM, initially considered a pan-carcinoma antigen, is identified as a marker of epithelial lineage.
- Numerous studies have explored EpCAM expression using generated antibodies across diverse epithelial tissues.
- Observed shifts in EpCAM expression patterns are linked to neoplastic changes in epithelial tissues.
Conclusions:
- EpCAM immunohistochemistry is a valuable tool for diagnosing epithelial tissue abnormalities.
- EpCAM expression analysis aids in distinguishing normal from disturbed epithelial tissues.
- The findings support the diagnostic potential of EpCAM in pathology.
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