Related Experiment Video

Updated: May 11, 2026

Detection of Toxin Translocation into the Host Cytosol by Surface Plasmon Resonance
10:41

Detection of Toxin Translocation into the Host Cytosol by Surface Plasmon Resonance

Published on: January 3, 2012

Did cholera toxin finally get caught?

Fabio Martinon1, F Gisou van der Goot2

  • 1Department of Biochemistry, University of Lausanne, 155 Chemin Des Boveresses, 1066 Epalinges, Switzerland.

Cell Host & Microbe
|May 21, 2013
PubMed

Insights

Pathogen-recognition receptors sense the environment to orchestrate immune responses. A new study reveals immune recognition of cholera toxin within the endoplasmic reticulum, enhancing our understanding of host-pathogen interactions.

Area of Science:

  • Immunology
  • Microbiology
  • Cell Biology

Background:

  • Pathogen-recognition receptors (PRRs) are crucial for detecting microbial threats and initiating immune responses.
  • Immune surveillance involves monitoring pathogen activities and molecular patterns.
  • The endoplasmic reticulum plays a role in cellular homeostasis and stress responses.

Purpose of the Study:

  • To elucidate a novel mechanism of immune recognition involving pathogen toxins.
  • To investigate how the host cell senses cholera toxin within the endoplasmic reticulum.
  • To understand the role of the endoplasmic reticulum in orchestrating immune responses against bacterial toxins.

Main Methods:

  • Cellular assays to detect toxin localization and cellular responses.
  • Immunological techniques to assess immune signaling pathways.
  • Genetic manipulation to study the role of specific cellular components.

Main Results:

  • Cholera toxin is detected within the endoplasmic reticulum.
  • This sensing triggers specific immune signaling cascades.
  • The endoplasmic reticulum acts as a site for pathogen-associated molecular pattern recognition.

Conclusions:

  • The endoplasmic reticulum is involved in sensing bacterial toxins.
  • This sensing mechanism contributes to the host's immune response orchestration.
  • The findings reveal a new layer of host-pathogen interaction at the cellular level.

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