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Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
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Detection of Inflammasome Activation and Pyroptotic Cell Death in Murine Bone Marrow-derived Macrophages
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Published on: May 21, 2018

Inflammasomes as microbial sensors.

Luigi Franchi1, Raul Muñoz-Planillo, Thornik Reimer

  • 1University of Michigan Medical School, Department of Pathology and Comprehensive Cancer Center, Ann Arbor, MI 48109, USA.

European Journal of Immunology
|March 5, 2010
PubMed
Summary

Nod-like receptors and ASC adaptor proteins form inflammasomes, activating caspase-1 for IL-1beta and IL-18 release. Research is uncovering molecules and mechanisms driving inflammasome activation.

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Area of Science:

  • Immunology
  • Molecular Biology
  • Cellular Signaling

Background:

  • Inflammasomes are multiprotein platforms crucial for innate immunity.
  • They activate caspase-1, leading to the release of pro-inflammatory cytokines IL-1beta and IL-18.

Purpose of the Study:

  • To summarize recent findings on inflammasome activation.
  • To identify key molecules and mechanisms involved in inflammasome assembly and activation.

Main Methods:

  • Review of recent scientific literature.
  • Analysis of molecular and cellular pathways involved in inflammasome signaling.

Main Results:

  • Members of the Nod-like receptor family and the ASC adaptor protein are key components.
  • Assembly into inflammasomes triggers caspase-1 activation.
  • Subsequent secretion of IL-1beta and IL-18 is mediated.

Conclusions:

  • Inflammasome activation is a tightly regulated process.
  • Diverse microbial and endogenous stimuli can initiate inflammasome assembly.
  • Understanding these mechanisms is vital for developing targeted therapies.