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Published on: September 9, 2014
Pathogens and polymers: microbe-host interactions illuminate the cytoskeleton
Cat M Haglund1, Matthew D Welch
1Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
Abstract:
Intracellular pathogens subvert the host cell cytoskeleton to promote their own survival, replication, and dissemination. Study of these microbes has led to many discoveries about host cell biology, including the identification of cytoskeletal proteins, regulatory pathways, and mechanisms of cytoskeletal function. Actin is a common target of bacterial pathogens, but recent work also highlights the use of microtubules, cytoskeletal motors, intermediate filaments, and septins. The study of pathogen interactions with the cytoskeleton has illuminated key cellular processes such as phagocytosis, macropinocytosis, membrane trafficking, motility, autophagy, and signal transduction.
Insights
Intracellular pathogens hijack host cell cytoskeletons for survival and spread. Studying these interactions reveals crucial host cell processes and identifies novel cytoskeletal targets used by bacteria.
Area of Science:
- Cell Biology
- Microbiology
- Pathogen-Host Interactions
Background:
- Intracellular pathogens manipulate host cell cytoskeletons for replication and dissemination.
- Understanding these interactions enhances knowledge of host cell biology, including cytoskeletal protein functions and regulatory pathways.
Purpose of the Study:
- To review how intracellular pathogens exploit the host cytoskeleton.
- To highlight the diverse cytoskeletal components targeted by pathogens.
- To underscore the insights gained into host cell processes through studying these interactions.
Main Methods:
- Literature review of studies on pathogen-cytoskeleton interactions.
- Analysis of identified cytoskeletal targets (actin, microtubules, intermediate filaments, septins).
- Examination of affected host cell processes (phagocytosis, membrane trafficking, etc.).
Main Results:
- Pathogens utilize various cytoskeletal elements, with actin being common but microtubules, intermediate filaments, and septins also targeted.
- Pathogen manipulation reveals fundamental aspects of cytoskeletal dynamics and function.
- Key cellular processes like phagocytosis, motility, and signal transduction are illuminated.
Conclusions:
- Pathogen-cytoskeleton interactions are a rich source for understanding host cell biology.
- Diverse cytoskeletal components are critical for pathogen success.
- This research area continues to uncover novel mechanisms of cellular processes.
Related Concept Videos
Intracellular Movement of Viruses and Bacteria
Colonisation of Pathogens
Microbial Interactions: Parasitism
Cytoskeletal Proteins in Bacteria
Microtubule Formation
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