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Related Experiment Videos

Pathogen-endoplasmic-reticulum interactions: in through the out door.

Craig R Roy1, Suzana P Salcedo, Jean-Pierre E Gorvel

  • 1Section of Microbial Pathogenesis, Yale University School of Medicine, Boyer Center for Molecular Medicine, 295 Congress Avenue, New Haven, Connecticut 065362, USA.

Nature Reviews. Immunology
|February 24, 2006
PubMed
Summary

Intracellular pathogens survive by hijacking host cell processes, particularly the endoplasmic reticulum, to evade immune defenses and replicate. The endoplasmic reticulum actively counters microbial invasion to control pathogen growth.

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Area of Science:

  • Cellular microbiology
  • Immunology
  • Pathogen-host interactions

Background:

  • Intracellular pathogens must evade host defenses, like lysosomal degradation, to survive within host cells.
  • Many pathogens have evolved sophisticated mechanisms to subvert host cellular machinery for their own benefit.
  • The endoplasmic reticulum (ER) is a critical cellular organelle involved in protein synthesis, folding, and quality control, making it a prime target for pathogens.

Purpose of the Study:

  • To review the molecular mechanisms pathogens employ to interact with and subvert the endoplasmic reticulum.
  • To elucidate how pathogens utilize the ER to escape immune surveillance and establish intracellular replication niches.
  • To discuss the host's counter-defense strategies, specifically how the ER responds to microbial invasion.

Main Methods:

Related Experiment Videos

  • This review synthesizes existing research on pathogen interactions with the endoplasmic reticulum.
  • It analyzes molecular pathways targeted by intracellular pathogens.
  • It examines host immune responses mediated by the ER.

Main Results:

  • Pathogens target specific ER functions, including protein folding and calcium homeostasis, to create replication compartments.
  • ER subversion by pathogens facilitates immune evasion and promotes intracellular survival.
  • The endoplasmic reticulum possesses intrinsic mechanisms to detect and control microbial proliferation.

Conclusions:

  • Understanding pathogen-ER interactions is crucial for developing novel therapeutic strategies against intracellular infections.
  • The endoplasmic reticulum plays a dual role in both being subverted by and actively combating intracellular pathogens.
  • Targeting the ER offers a promising avenue for controlling diseases caused by intracellular microorganisms.