Publication Date:
2016-03-19
Description:
Systemic inflammation, which results from the massive release of proinflammatory molecules into the circulatory system, is a major risk factor for severe illness, but the precise mechanisms underlying its control are not fully understood. We observed that prostaglandin E2 (PGE2), through its receptor EP4, is down-regulated in human systemic inflammatory disease. Mice with reduced PGE2 synthesis develop systemic inflammation, associated with translocation of gut bacteria, which can be prevented by treatment with EP4 agonists. Mechanistically, we demonstrate that PGE2-EP4 signaling acts directly on type 3 innate lymphoid cells (ILCs), promoting their homeostasis and driving them to produce interleukin-22 (IL-22). Disruption of the ILC-IL-22 axis impairs PGE2-mediated inhibition of systemic inflammation. Hence, the ILC-IL-22 axis is essential in protecting against gut barrier dysfunction, enabling PGE2-EP4 signaling to impede systemic inflammation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4841390/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4841390/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Duffin, Rodger -- O'Connor, Richard A -- Crittenden, Siobhan -- Forster, Thorsten -- Yu, Cunjing -- Zheng, Xiaozhong -- Smyth, Danielle -- Robb, Calum T -- Rossi, Fiona -- Skouras, Christos -- Tang, Shaohui -- Richards, James -- Pellicoro, Antonella -- Weller, Richard B -- Breyer, Richard M -- Mole, Damian J -- Iredale, John P -- Anderton, Stephen M -- Narumiya, Shuh -- Maizels, Rick M -- Ghazal, Peter -- Howie, Sarah E -- Rossi, Adriano G -- Yao, Chengcan -- 106122/Wellcome Trust/United Kingdom -- BB/K091121/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- DK37097/DK/NIDDK NIH HHS/ -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1333-8. doi: 10.1126/science.aad9903.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council (MRC) Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh EH16 4TJ, UK. ; Division of Pathway Medicine, Edinburgh Infectious Diseases, The University of Edinburgh, Edinburgh EH16 4SB, UK. ; Institute for Immunology and Infection Research, The University of Edinburgh, Edinburgh EH9 3JT, UK. ; MRC Centre for Regenerative Medicine, The University of Edinburgh, Edinburgh EH16 4UU, UK. ; Department of Gastroenterology, First Affiliated Hospital of Jinan University, Guangzhou 510630, China. ; Department of Veterans Affairs, Tennessee Valley Health Authority, Nashville, TN 37212, USA. Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA. ; Center for Innovation in Immunoregulative Technology and Therapeutics (AK Project), Kyoto University Graduate School of Medicine, Kyoto 606-8501, Japan. Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), Tokyo 102-0075, Japan. ; Division of Pathway Medicine, Edinburgh Infectious Diseases, The University of Edinburgh, Edinburgh EH16 4SB, UK. Centre for Synthetic and Systems Biology (SynthSys), The University of Edinburgh, Edinburgh EH9 3JD, UK. ; Medical Research Council (MRC) Centre for Inflammation Research, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh EH16 4TJ, UK. chengcan.yao@ed.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26989254" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Bacterial Infections/genetics/immunology
;
Dinoprostone/*immunology
;
Gene Expression
;
Humans
;
Immunity, Innate
;
Inflammation/drug therapy/*immunology/microbiology
;
Interleukins/*immunology
;
Intestines/*immunology/microbiology
;
Lymphocytes/*immunology
;
Mice
;
Receptors, Prostaglandin E, EP4 Subtype/antagonists &
;
inhibitors/genetics/*immunology
;
Signal Transduction
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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