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Consequences of microbial attachment: directing host cell functions with adhesins
1Laboratory of Molecular Infectious Diseases, Rockefeller University, New York, New York 10021.
Infection and Immunity
|May 1, 1992
Summary
Cell adhesion is an active process, not static. Understanding host cell-adhesin interactions and their parameters predicts cellular outcomes, offering insights into cell biology by studying pathogen adaptations.
Area of Science:
- Microbiology
- Cell Biology
- Immunology
Background:
- Cell adhesion is traditionally viewed as a static interaction.
- Pathogen adhesins exploit host cell-surface receptors to initiate infection.
- Understanding the dynamics of host-pathogen interactions is crucial for deciphering cellular responses.
Purpose of the Study:
- To reframe cell adhesion as a dynamic process with predictable outcomes.
- To identify key parameters governing host cell-adhesin interactions.
- To explore how pathogen adhesins manipulate host cell functions.
Main Methods:
- Analysis of host cell-adhesin interaction parameters.
- Investigating the role of receptor regulation and binding domains.
- Examining intracellular signaling pathways activated by adhesin ligation.
- Comparative analysis of eukaryotic and prokaryotic adhesive domains.
Main Results:
- Cell adhesion elicits active responses in targeted host cells.
- Host cell-adhesin interaction outcomes depend on parameters like adhesin function, receptor status, binding site, and linked signaling pathways.
- Pathogen adhesins orchestrate diverse cellular outcomes, including actin nucleation and cytokine induction.
- Eukaryotic and prokaryotic adhesive domains share relatedness, suggesting conserved interaction mechanisms.
Conclusions:
- Adhesion is an active cellular process with predictable outcomes based on interaction parameters.
- Pathogen adhesins leverage and adapt host cell-cell interaction systems.
- Studying pathogen interactions provides valuable insights into fundamental eukaryotic cell biology.