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Updated: Aug 14, 2026
11:31
Analysis of Protein-protein Interactions and Co-localization Between Components of Gap, Tight, and Adherens Junctions in Murine Mammary Glands
Published on: May 30, 2017
Cadherin junctions in mammary tumors
M J Wheelock1, A P Soler, K A Knudsen
1Department of Biology, University of Toledo, Ohio 43606, USA. mwheelo@uoft02.utoledo.edu
Journal of Mammary Gland Biology and Neoplasia
|September 8, 2001
Summary
Cadherins are cell adhesion proteins crucial for tissue structure and signaling. Analyzing cadherin and catenin expression in tumors may offer valuable prognostic insights for breast cancer.
Area of Science:
- Cell Biology
- Molecular Biology
- Oncology
Background:
- Cadherins are transmembrane proteins essential for cell-cell adhesion and linking to the actin cytoskeleton via catenins.
- Beyond adhesion, cadherins play roles in initiating and modulating intracellular signaling pathways.
- Loss of E-cadherin function in epithelial cells is implicated in tumorigenesis, and aberrant cadherin expression can alter cell behavior, potentially contributing to cancer phenotypes.
Purpose of the Study:
- To explore the role of cadherins and catenins in cell adhesion and signaling.
- To investigate the significance of cadherin expression patterns in tumorigenesis, particularly in epithelial cells.
- To assess the potential of cadherin and catenin repertoire analysis as a prognostic indicator in breast cancer.
Main Methods:
- Analysis of cadherin and catenin expression in cellular and tissue contexts.
- Investigating the functional impact of cadherins on cell adhesion and intracellular signaling.
- Correlating cadherin/catenin expression profiles with tumor characteristics and patient outcomes.
Main Results:
- Cadherins mediate specific cell-cell binding and connect to the actin cytoskeleton through catenins.
- Altered cadherin expression, such as decreased E-cadherin, is associated with tumorigenesis and altered cell behavior.
- While decreased E-cadherin alone has limited prognostic value in breast cancer, the overall cadherin/catenin repertoire may offer significant prognostic information.
Conclusions:
- Cadherins are critical for cell adhesion, cytoskeletal linkage, and intracellular signaling.
- Aberrant cadherin expression is linked to cancer development and progression.
- Comprehensive analysis of cadherin and catenin expression in tumors shows promise for improving breast cancer prognosis.
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