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Imaging Effector Memory T cells in the Ear After Induction of Adoptive DTH
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Effector triggered immunity.

Rajmohan Rajamuthiah1, Eleftherios Mylonakis

  • 1a Division of Infectious Diseases; Rhode Island Hospital; Alpert Medical School of Brown University; Providence, RI USA.

Virulence
|December 17, 2014
PubMed
Summary
This summary is machine-generated.

Pathogenic bacteria use effectors to infect hosts, but host cells fight back with effector-triggered immunity (ETI). This conserved immune response, found in metazoans, protects against bacterial invasion.

Keywords:
DAMPMAMPPAMPPRRactin cytoskeletonanimal cellsinnate immunitymetazoanspore forming toxintranslation inhibition

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Area of Science:

  • Microbiology
  • Immunology
  • Cell Biology

Background:

  • Pathogenic bacteria employ virulence factors called effectors to facilitate infection.
  • Bacterial effectors manipulate host cells for pathogen survival, impacting attachment, entry, and immune evasion.
  • Host cells possess innate immune mechanisms to detect pathogen effectors and initiate defense.

Purpose of the Study:

  • To review the conserved mechanism of effector-triggered immunity (ETI) in metazoans.
  • To highlight recent findings on ETI in mammalian and invertebrate models.
  • To discuss how host cells sense and respond to bacterial effectors.

Main Methods:

  • Review of recent studies on effector-triggered immunity in metazoan model systems.
  • Analysis of molecular mechanisms underlying host detection of bacterial effectors.
  • Comparative discussion of ETI across different metazoan hosts.

Main Results:

  • Effector-triggered immunity (ETI) is an evolutionarily conserved host defense mechanism.
  • ETI involves host sensing of bacterial effectors to mount an immune response.
  • Recent studies in mammalian cells and invertebrates reveal conserved ETI pathways.

Conclusions:

  • Effector-triggered immunity is a critical defense against bacterial pathogens in metazoans.
  • Understanding ETI mechanisms can inform strategies against bacterial infections.
  • ETI represents a conserved battleground between bacterial virulence and host defense.