期刊
FASEB JOURNAL
卷 33, 期 7, 页码 8202-8210出版社
WILEY
DOI: 10.1096/fj.201802817R
关键词
allergy; eosinophil; 15d-PGJ(2); DP receptor
资金
- Japan Society for the Promotion of Science [18H06117, 18K14603, 17H01509, 17H06252]
- Novartis Foundation for the Promotion of Science
- Nipponham Foundation
- Hoyu Science Foundation
- Grants-in-Aid for Scientific Research [17H06252, 18K14603, 18H06117, 17H01509] Funding Source: KAKEN
The precise role of prostaglandin D (PGD)(2) in allergic lung inflammation remains controversial. Here, we aimed to clarify the role of PGD(2) in chronic allergic lung inflammation using hematopoietic PGD synthase (H-PGDS)-deficient mice. Repeated intranasal administration of ovalbumin (OVA) resulted in eosinophilic infiltration and mucin production in the lungs of wild type (WT) mice, leading to respiratory dysfunction. H-PGDS deficiency exacerbated these effects, which were accompanied by increased mRNA expression of TNF-alpha and eosinophil chemoattractants. The bronchial epithelium expressed both H-PGDS and TNF-alpha in the inflamed WT lung, and H-PGDS deficiency increased TNF-alpha expression further. In cultured bronchial tissue of WT mice, treatment with LPS elevated mRNA expression of TNF-alpha and eosinophil chemoattractants. H-PGDS deficiency promoted the expression of these factors, which was inhibited by treatment with PGD(2) receptor, D prostanoid (DP) receptor agonist, or PGD(2) metabolite 15-deoxy-Delta(12,14)-PGJ(2) (15d-PGJ(2)). Treatment with TNF-alpha receptor antibody inhibited eosinophil chemoattractant expression. In vivo, administration of DP agonist or 15d-PGJ(2) inhibited OVA-induced allergic lung inflammation. Bronchial epithelial cell-derived PGD(2) attenuated lung eosinophilic infiltration with chronic allergic inflammation; these phenomena are at least partly attributed to the inhibition of TNF-alpha production via DP activation or 15-deoxy-Delta(12,14)-PGJ(2) signaling.-Maehara, T., Nakamura, T., Maeda, S., Aritake, K., Nakamura, M., Murata, T. Epithelial cell-derived prostaglandin D-2 inhibits chronic allergic lung inflammation in mice.
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