Epithelial Intermediate Filaments: Guardians against Microbial Infection?
Florian Geisler1, Rudolf E Leube2
1Institute of Molecular and Cellular Anatomy, RWTH Aachen University, Wendlingweg 2, 52074 Aachen, Germany. fgeisler@ukaachen.de.
Cells
|June 30, 2016
Summary
Intermediate filaments, particularly keratin, form epithelial barriers against microbes. Their interactions with viral, bacterial, and parasitic proteins reveal new strategies for combating infectious diseases.
Area of Science:
- Cell Biology
- Microbiology
- Immunology
Background:
- Intermediate filaments (IFs) are abundant cytoskeletal proteins in epithelial cells.
- IFs are known for mechanical stress protection.
- Their role as a barrier against microbial infection is underexplored.
Purpose of the Study:
- To review the current knowledge on the function of intermediate filaments as a barrier to microbial infection.
- To highlight the spatial organization of keratin IFs in epithelial tissues and their protective role.
- To discuss direct interactions between microbial proteins and IFs and their impact on host-pathogen dynamics.
Main Methods:
- Literature review of studies investigating intermediate filament-microbe interactions.
- Analysis of the spatial organization of keratin IFs in various epithelial tissues.
- Examination of reported direct interactions between viral, bacterial, and parasitic proteins and IFs.
Main Results:
- Keratin IFs exhibit unique spatial organization, contributing to host defense against microbial insults.
- Direct interactions between microbial proteins and IFs modulate the epithelial cytoskeleton.
- These interactions influence infection progression and host immune responses.
Conclusions:
- Intermediate filaments play a significant role in host defense against microbial infections.
- Understanding IF-microbe interactions offers novel insights into cytoskeletal dynamics and function.
- This knowledge can guide the development of new strategies to combat infectious diseases.
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