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Cited by 264

The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.

Critical role for Ipaf in Pseudomonas aeruginosa‐induced caspase‐1 activation

Open access
Franchi, Luigi, Stoolman, Joshua, Kanneganti, Thirumala‐Devi, Verma, Amrisha, Ramphal, Reuben, Núñez, Gabriel·2007·European Journal of Immunology

Abstract

Pseudomonas aeruginosa is an opportunistic Gram‐negative human pathogen that is responsible for a broad range of infections in individuals with a variety of predisposing conditions. After infection, P. aeruginosa induces a marked inflammatory response in the host. However the mechanisms involved in bacterium recognition and induction of immune responses are poorly understood. Here we report that the Nod‐like receptor family member Ipaf is required for optimal bacterial clearance in an in vivo model of P. aeruginosa lung infection. Further analysis showed that bacterial flagellin was essential for caspase‐1 and IL‐1β and this activity depended on Ipaf and the adaptor ASC but not TLR5. Notably, P. aeruginosa induced macrophage cell death and this event relied on flagellin and Ipaf but not on ASC. Analysis of Pseudomonas mutants revealed that different amino acid residues of flagellin were critical for sensing by Ipaf and TLR5. Finally, activation of caspase‐1 and IL‐1β secretion by P. aeruginosa required a functional type III secretion system, but not the effector molecules ExoS, ExoT and ExoY. These results provide new insight into the interaction of P. aeruginosa with host macrophages and suggest that distinct regions of flagellin are sensed by Ipaf and TLR5.

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Metadata

Authors
Franchi, L., Stoolman, J., Kanneganti, T., Verma, A., Ramphal, R., & Núñez, G.
Venue
European Journal of Immunology
Publisher
Wiley
Published
2007-10-24
Volume
37
Issue
11
Pages
3030-3039
ISSN
  • 0014-2980 (ISSN-L)
  • 1521-4141
OpenAlex
W2128940003
Cited by
264
References
49
FWCI
8.12
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Critical role for Ipaf in Pseudomonas aeruginosa‐induced caspase‐1 activation. https://app.cochat.ai/papers/10.1002/eji.200737532
The paper
Franchi, L., Stoolman, J., Kanneganti, T., Verma, A., Ramphal, R., & Núñez, G. (2007). Critical role for Ipaf in Pseudomonas aeruginosa‐induced caspase‐1 activation. European Journal of Immunology. https://doi.org/10.1002/eji.200737532

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.