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Break ins and break outs: viral interactions with the cytoskeleton of Mammalian cells
Gregory A Smith1, Lynn W Enquist
1Department of Microbiology-Immunology, Northwestern University Medical School, Chicago, Illinois 60611, USA. g-smith3@northwestern.edu
Abstract:
The host cytoskeleton plays important roles in the entry, replication, and egress of viruses. An assortment of viruses hijack cellular motor proteins to move on microtubules toward the cell interior during the entry process; others reverse this transport during egress to move assembling virus particles toward the plasma membrane. Polymerization of actin filaments is sometimes used to propel viruses from cell to cell, while many viruses induce the destruction of select cytoskeletal filaments apparently to effect efficient egress. Indeed, the tactics used by any given virus to achieve its infectious life cycle are certain to involve multiple cytoskeletal interactions. Understanding these interactions, and their orchestration during viral infections, is providing unexpected insights into basic virology, viral pathogenesis, and the biology of the cytoskeleton.
Insights
Viruses utilize the host cell
Area of Science:
- Cell biology
- Virology
- Molecular biology
Background:
- The host cytoskeleton is crucial for viral life cycles.
- Viruses exploit cytoskeletal components for infection.
Purpose of the Study:
- To explore the multifaceted roles of the host cytoskeleton in viral infections.
- To understand viral manipulation of cytoskeletal dynamics.
Main Methods:
- Review of existing literature on virus-cytoskeleton interactions.
- Analysis of viral strategies involving motor proteins and filament dynamics.
Main Results:
- Viruses hijack motor proteins for intracellular transport during entry and egress.
- Actin polymerization facilitates cell-to-cell viral spread.
- Viruses can induce cytoskeletal filament destruction for efficient egress.
Conclusions:
- Viral infection involves complex and diverse interactions with the host cytoskeleton.
- Studying these interactions offers insights into virology, pathogenesis, and cytoskeletal biology.
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