Skip to Main content Skip to Navigation
Journal articles

Mouse and human neutrophils induce anaphylaxis.

Abstract : Anaphylaxis is a life-threatening hyperacute immediate hypersensitivity reaction. Classically, it depends on IgE, FcεRI, mast cells, and histamine. However, anaphylaxis can also be induced by IgG antibodies, and an IgG1-induced passive type of systemic anaphylaxis has been reported to depend on basophils. In addition, it was found that neither mast cells nor basophils were required in mouse models of active systemic anaphylaxis. Therefore, we investigated what antibodies, receptors, and cells are involved in active systemic anaphylaxis in mice. We found that IgG antibodies, FcγRIIIA and FcγRIV, platelet-activating factor, neutrophils, and, to a lesser extent, basophils were involved. Neutrophil activation could be monitored in vivo during anaphylaxis. Neutrophil depletion inhibited active, and also passive, systemic anaphylaxis. Importantly, mouse and human neutrophils each restored anaphylaxis in anaphylaxis-resistant mice, demonstrating that neutrophils are sufficient to induce anaphylaxis in mice and suggesting that neutrophils can contribute to anaphylaxis in humans. Our results therefore reveal an unexpected role for IgG, IgG receptors, and neutrophils in anaphylaxis in mice. These molecules and cells could be potential new targets for the development of anaphylaxis therapeutics if the same mechanism is responsible for anaphylaxis in humans.
Document type :
Journal articles
Complete list of metadatas

Cited literature [45 references]  Display  Hide  Download

https://hal-pasteur.archives-ouvertes.fr/pasteur-02533220
Contributor : Marie Martin <>
Submitted on : Monday, April 6, 2020 - 12:02:17 PM
Last modification on : Friday, September 4, 2020 - 1:32:43 PM

File

45232.2-20150223215146-covered...
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution - NonCommercial - NoDerivatives 4.0 International License

Identifiers

Collections

Citation

Friederike Jönsson, David Mancardi, Yoshihiro Kita, Hajime Karasuyama, Bruno Iannascoli, et al.. Mouse and human neutrophils induce anaphylaxis.. Journal of Clinical Investigation, American Society for Clinical Investigation, 2011, 121 (4), pp.1484-1496. ⟨10.1172/JCI45232⟩. ⟨pasteur-02533220⟩

Share

Metrics

Record views

63

Files downloads

122