Metabolic regulation by prostaglandin E2 impairs lung group 2 innate lymphoid cell responses

被引:9
|
作者
Robb, Calum T. [1 ]
Zhou, You [2 ,3 ]
Felton, Jennifer M. [1 ]
Zhang, Birong [2 ,3 ]
Goepp, Marie [1 ]
Jheeta, Privjyot [1 ]
Smyth, Danielle J. [4 ]
Duffin, Rodger [1 ]
Vermeren, Sonja [1 ]
Breyer, Richard M. [5 ,6 ]
Narumiya, Shuh [7 ,8 ]
McSorley, Henry J. [4 ]
Maizels, Rick M. [9 ]
Schwarze, Jurgen K. J. [1 ]
Rossi, Adriano G. [1 ]
Yao, Chengcan [1 ]
机构
[1] Univ Edinburgh, Ctr Inflammat Res, Queens Med Res Inst, 47 Little France Crescent, Edinburgh EH16 4TJ, Midlothian, Scotland
[2] Cardiff Univ, Syst Immun Univ Res Inst, Cardiff, Wales
[3] Cardiff Univ, Div Infect & Immun, Cardiff, Wales
[4] Univ Dundee, Sch Life Sci, Div Cell Signaling & Immunol, Wellcome Trust Bldg, Dundee, Scotland
[5] Tennessee Valley Hlth Author, Dept Vet Affairs, Nashville, TN USA
[6] Vanderbilt Univ, Med Ctr, Dept Med, Nashville, TN USA
[7] Kyoto Univ, Med Innovat Ctr, Alliance Lab Adv Med Res, Grad Sch Med, Kyoto, Japan
[8] Kyoto Univ, Med Innovat Ctr, Dept Drug Discovery Med, Grad Sch Med, Kyoto, Japan
[9] Univ Glasgow, Wellcome Ctr Mol Parasitol, Inst Infect Immun & Inflammat, Glasgow, Lanark, Scotland
基金
英国医学研究理事会;
关键词
cellular metabolism; group 2 innate lymphoid cell (ILC2); lung allergy; NSAID-exacerbated respiratory disease; prostaglandin E-2; EXACERBATED RESPIRATORY-DISEASE; EP4; RECEPTOR; INFLAMMATION; HOMEOSTASIS; INDUCTION; ASTHMA; EXPRESSION; TARGET;
D O I
10.1111/all.15541
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
Background Group 2 innate lymphoid cells (ILC2s) play a critical role in asthma pathogenesis. Non-steroidal anti-inflammatory drug (NSAID)-exacerbated respiratory disease (NERD) is associated with reduced signaling via EP2, a receptor for prostaglandin E-2 (PGE(2)). However, the respective roles for the PGE(2) receptors EP2 and EP4 (both share same downstream signaling) in the regulation of lung ILC2 responses has yet been deciphered. Methods The roles of PGE(2) receptors EP2 and EP4 on ILC2-mediated lung inflammation were investigated using genetically modified mouse lines and pharmacological approaches in IL-33-induced lung allergy model. The effects of PGE(2) receptors and downstream signals on ILC2 metabolic activation and effector function were examined using in vitro cell cultures. Results Deficiency of EP2 rather than EP4 augments IL-33-induced mouse lung ILC2 responses and eosinophilic inflammation in vivo. In contrast, exogenous agonism of EP4 and EP2 or inhibition of phosphodiesterase markedly restricts IL-33-induced lung ILC2 responses. Mechanistically, PGE(2) directly suppresses IL-33-dependent ILC2 activation through the EP2/EP4-cAMP pathway, which downregulates STAT5 and MYC pathway gene expression and ILC2 energy metabolism. Blocking glycolysis diminishes IL-33-dependent ILC2 responses in mice where endogenous PG synthesis or EP2 signaling is blocked but not in mice with intact PGE(2)-EP2 signaling. Conclusion We have defined a mechanism for optimal suppression of mouse lung ILC2 responses by endogenous PGE(2)-EP2 signaling which underpins the clinical findings of defective EP2 signaling in patients with NERD. Our findings also indicate that exogenously targeting the PGE(2)-EP4-cAMP and energy metabolic pathways may provide novel opportunities for treating the ILC2-initiated lung inflammation in asthma and NERD.
引用
收藏
页码:714 / 730
页数:17
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