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Updated: Aug 4, 2026

Tractable Mammalian Cell Infections with Protozoan-primed Bacteria
Published on: April 2, 2013
[The cofilin of host cell and infection--A review]
Abstract:
Invasion of pathogens into host cells is the key process to consequently induce the infection, which depends on the actin cytoskeleton rearrangement. Cofilin in the host cell is one of the most important actin depolymerization factor that is essential responsing to the infection of several viruses, bacteria and fungi. Pathogenic microbes can induce biphasic remodeling of the actin cytoskeleton in host cells, accompanied by changes of phosphorylation of cofilin, which results in changes of cofilin activity. The modulation of host cofilin activity by mutation, knockdown, or overexpression can effectively inhibit the infection. Here we review the function and possible regulatory mechanism of host cofilin during the process of infection.
Insights
Host cell invasion by pathogens relies on actin cytoskeleton changes. Cofilin, an actin depolymerization factor, plays a crucial role in infection responses and can be modulated to inhibit pathogen entry.
Area of Science:
- Cellular microbiology
- Host-pathogen interactions
- Cytoskeletal dynamics
Context:
- Pathogen invasion necessitates host actin cytoskeleton rearrangement.
- Cofilin is a key host actin depolymerization factor critical for responding to viral, bacterial, and fungal infections.
- Pathogenic microbes induce biphasic remodeling of the host actin cytoskeleton.
Purpose:
- To review the function of host cofilin during infection.
- To explore the regulatory mechanisms of cofilin activity in host-pathogen interactions.
Summary:
- Pathogen-induced infection involves biphasic remodeling of the host actin cytoskeleton.
- Host cofilin activity, regulated by phosphorylation, is essential for the cellular response to infection.
- Modulating host cofilin activity through genetic manipulation can inhibit pathogen invasion.
Impact:
- Understanding cofilin's role provides insights into host defense mechanisms against pathogens.
- Targeting cofilin activity presents a potential strategy for developing novel anti-infective therapies.
- This review highlights cofilin as a critical host factor in the context of infectious diseases.
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