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Updated: May 28, 2026

In Vitro Assay of Bacterial Adhesion onto Mammalian Epithelial Cells
Published on: May 16, 2011
Impenetrable barriers or entry portals? The role of cell-cell adhesion during infection
Matteo Bonazzi1, Pascale Cossart
1Centre Nationale de la Recherche Scientifique, UMR 5236, CPBS, CNRS, 34293 Montpellier, France. matteo.bonazzi@cpbs.cnrs.fr
Abstract:
Cell-cell adhesion plays a fundamental role in cell polarity and organogenesis. It also contributes to the formation and establishment of physical barriers against microbial infections. However, a large number of pathogens, from viruses to bacteria and parasites, have developed countless strategies to specifically target cell adhesion molecules in order to adhere to and invade epithelial cells, disrupt epithelial integrity, and access deeper tissues for dissemination. The study of all these processes has contributed to the characterization of molecular machineries at the junctions of eukaryotic cells that have been better understood by using pathogens as probes.
Insights
Pathogens exploit cell adhesion molecules to invade epithelial cells, highlighting their role in disease. Studying these interactions reveals crucial details about cell junction machinery. Keywords: cell adhesion, pathogens, epithelial cells, cell junctions.
Area of Science:
- Cell Biology
- Microbiology
- Immunology
Background:
- Cell-cell adhesion is vital for tissue structure, cell polarity, and organ development.
- Epithelial barriers formed by cell adhesion prevent pathogen entry.
- Pathogens have evolved mechanisms to target and disrupt cell adhesion for invasion.
Purpose of the Study:
- To investigate how pathogens target cell adhesion molecules.
- To understand the role of cell adhesion in epithelial barrier function and pathogen invasion.
- To utilize pathogen interactions as a tool to study eukaryotic cell junction machinery.
Main Methods:
- Analysis of pathogen adherence and invasion mechanisms.
- Microscopic and molecular techniques to study cell junctions.
- Comparative studies across different pathogen types (viruses, bacteria, parasites).
Main Results:
- Pathogens specifically target diverse cell adhesion molecules.
- Disruption of cell adhesion by pathogens compromises epithelial integrity.
- Pathogen interactions provide insights into the dynamics of cell-cell junctions.
Conclusions:
- Pathogen strategies for cell adhesion targeting are diverse and effective.
- Understanding these interactions is key to developing new therapeutic strategies.
- Pathogens serve as valuable probes for dissecting fundamental cell biology processes.
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