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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Karpurapu, Manjula Christman, John W. Deng, Jing Wang, Xuerong Qian, Feng Vogel, Stephen Park, Hyesuk Ye, Richard D. Park, Gye Young Xiao, Lei Ranjan, Ravi |
| Description | Country affiliation: United States Author Affiliation: Deng J ( Section of Pulmonary, Critical Care, Sleep, and Allergy, Department of Medicine, University of Illinois, Chicago, IL 60612, USA.) |
| Abstract | Reactive oxygen species (ROS) generated by NADPH oxidase are generally known to be proinflammatory, and it seems to be counterintuitive that ROS play a critical role in regulating the resolution of the inflammatory response. However, we observed that deficiency of the p47(phox) component of NADPH oxidase in macrophages was associated with a paradoxical accentuation of inflammation in a whole animal model of noninfectious sepsis induced by endotoxin. We have confirmed this observation by interrogating four separate in vivo models that use complementary methodology including the use of p47(phox-/-) mice, p47(phox-/-) bone marrow chimera mice, adoptive transfer of macrophages from p47(phox-/-) mice, and an isolated perfused lung edema model that all point to a relationship between excessive acute inflammation and p47(phox) deficiency in macrophages. Mechanistic data indicate that ROS deficiency in both cells and mice results in decreased production of IL-10 in response to treatment with LPS, at least in part, through attenuation of the Akt-GSK3-ß signal pathway and that it can be reversed by the administration of rIL-10. Our data support the innovative concept that generation of ROS is essential for counterregulation of acute lung inflammation. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| DOI | 10.4049/jimmunol.1101323 |
| Journal | The Journal of Immunology |
| Issue Number | 11 |
| Volume Number | 188 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2012-06-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Endotoxins Toxicity Gene Expression Regulation Immunology Interleukin-10 Biosynthesis Lung Pathology Pneumonia Reactive Oxygen Species Therapeutic Use Adoptive Transfer Animals Disease Models, Animal Antagonists & Inhibitors Luciferases Genetics Metabolism Macrophages, Peritoneal Transplantation Mice Mice, Knockout Mice, Transgenic Nadph Oxidase Deficiency Therapy Recombinant Proteins Administration & Dosage Research Support, N.i.h., Extramural Research Support, U.s. Gov't, Non-p.h.s. Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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