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IL-18 Does not Increase Allergic Airway Disease in Mice When Produced by BCG.

Abstract : Whilst BCG inhibits allergic airway responses in murine models, IL-18 has adversary effects depending on its environment. We therefore constructed a BCG strain producing murine IL-18 (BCG-IL-18) and evaluated its efficiency to prevent an asthma-like reaction in mice. BALB/cByJ mice were sensitized (day (D) 1 and D10) by intraperitoneal injection of ovalbumin (OVA)-alum and primary (D20-22) and secondary (D62, 63) challenged with OVA aerosols. BCG or BCG-IL-18 were intraperitonealy administered 1 hour before each immunization (D1 and D10). BCG-IL-18 and BCG were shown to similarly inhibit the development of AHR, mucus production, eosinophil influx, and local Th2 cytokine production in BAL, both after the primary and secondary challenge. These data show that IL-18 did not increase allergic airway responses in the context of the mycobacterial infection, and suggest that BCG-IL-18 and BCG are able to prevent the development of local Th2 responses and therefore inhibit allergen-induced airway responses even after restimulation.
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https://www.hal.inserm.fr/inserm-00305279
Déposant : Catherine Duez <>
Soumis le : jeudi 24 juillet 2008 - 08:51:06
Dernière modification le : mardi 16 février 2021 - 23:05:00
Archivage à long terme le : : vendredi 25 novembre 2016 - 23:26:54

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Latiffa Amniai, Franck Biet, Philippe Marquillies, Camille Locht, Joël Pestel, et al.. IL-18 Does not Increase Allergic Airway Disease in Mice When Produced by BCG.. Journal of Biomedicine and Biotechnology, Hindawi Publishing Corporation, 2007, 2007, pp.67276. ⟨10.1155/2007/67276⟩. ⟨inserm-00305279⟩

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