PMID- 15546390 OWN - NLM STAT- MEDLINE DCOM- 20050405 LR - 20051117 IS - 0105-2896 (Print) IS - 0105-2896 (Linking) VI - 202 DP - 2004 Dec TI - Induction of allergic inflammation by interleukin-18 in experimental animal models. PG - 115-38 AB - Interleukin-18 (IL-18) has been regarded as a proinflammatory cytokine because of its potent interferon-gamma-inducing activity. However, mutant mice that release excess amounts of IL-18 spontaneously develop pruritic chronic dermatitis-like atopic dermatitis (AD), suggesting the importance of IL-18 for the development of AD. Intriguingly, depletion of il-18 but not stat6, an essential transcriptional factor for IL-4 signaling, rescues the mice from AD, indicating IL-18-dependent, T-helper 2 (Th2) cell-independent AD. This type of AD is classified as innate-type allergy in contrast to Th2 cell-dependent ordinary allergy. Consistent with the previous studies, mice transferred with antigen-specific Th1 cells exhibit no airway hyperresponsiveness and respiratory eosinophilic inflammation after challenge with antigen alone. However, they suffer from asthma upon challenge with antigen plus IL-18, with comparable levels of both the alterations as in those transferred with Th2 cells following challenge with antigen. The former type of asthma is categorized as Th1-associated allergy. Therefore, it is definitely necessary to evaluate whether individual allergic disorders involve either of these IL-18-mediated pathways or a Th2-mediated one. FAU - Tsutsui, Hiroko AU - Tsutsui H AD - Department of Immunology & Medical Zoology, Hyogo College of Medicine, Nishinomiya, Japan. FAU - Yoshimoto, Tomohiro AU - Yoshimoto T FAU - Hayashi, Nobuki AU - Hayashi N FAU - Mizutani, Hitoshi AU - Mizutani H FAU - Nakanishi, Kenji AU - Nakanishi K LA - eng PT - Journal Article PT - Review PL - England TA - Immunol Rev JT - Immunological reviews JID - 7702118 RN - 0 (Interleukin-18) RN - 0 (Membrane Glycoproteins) RN - 0 (Receptors, Cell Surface) RN - 0 (Toll-Like Receptors) SB - IM MH - Animals MH - Disease Models, Animal MH - Hypersensitivity/*immunology/*metabolism MH - Inflammation/*immunology/*metabolism MH - Interleukin-18/chemistry/genetics/immunology/*metabolism MH - Membrane Glycoproteins/immunology/metabolism MH - Receptors, Cell Surface/immunology/metabolism MH - Signal Transduction/immunology/physiology MH - Toll-Like Receptors RF - 243 EDAT- 2004/11/18 09:00 MHDA- 2005/04/06 09:00 CRDT- 2004/11/18 09:00 PHST- 2004/11/18 09:00 [pubmed] PHST- 2005/04/06 09:00 [medline] PHST- 2004/11/18 09:00 [entrez] AID - IMR205 [pii] AID - 10.1111/j.0105-2896.2004.00205.x [doi] PST - ppublish SO - Immunol Rev. 2004 Dec;202:115-38. doi: 10.1111/j.0105-2896.2004.00205.x.