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Updated: Aug 6, 2025
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Direct Observation of Phagocytosis and NET-formation by Neutrophils in Infected Lungs using 2-photon Microscopy
Published on: June 2, 2011
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An innate granuloma eradicates an environmental pathogen using Gsdmd and Nos2
Biorxiv : the Preprint Server for Biology
|March 22, 2023
Summary
Researchers discovered a novel granuloma model using Chromobacterium violaceum. This innate immune response successfully walls off and clears bacterial infections, independent of adaptive immunity.
Area of Science:
- Immunology
- Microbiology
- Infectious Diseases
Background:
- Granulomas are crucial in chronic infections, typically involving adaptive immunity.
- Environmental pathogens like Chromobacterium violaceum can cause persistent infections.
Conclusions:
- A novel mouse model of granuloma formation induced by the environmental bacterium Chromobacterium violaceum was identified.
- Innate immune cells can independently organize granulomas to effectively contain and clear infections.
- The gasdermin D and iNOS pathways are essential for the structural integrity and function of these innate granulomas.
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