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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kanayama, Masashi Shinohara, Mari L. He, You-Wen |
| Description | Author Affiliation: Kanayama M ( Department of Immunology, Duke University Medical Center, Durham, NC 27710); He YW ( Department of Immunology, Duke University Medical Center, Durham, NC 27710); Shinohara ML ( Department of Immunology, Duke University Medical Center, Durham, NC 27710) |
| Abstract | The lung is constantly exposed to the outer environment; thus, it must maintain a state of immune ignorance or tolerance not to overrespond to harmless environmental stimuli. How cells in the lung control immune responses under nonpathogenic condition is not fully understood. In this study, we found that autophagy plays a critical role in the lung-specific immune regulation that prevents spontaneous inflammation. Autophagy in pulmonary myeloid cells plays a role in maintaining low burdens of environmental microbes in the lung, as well as in lowering mitochondrial reactive oxygen species production and preventing overresponse to TLR4 ligands in alveolar macrophages. Based on these mechanisms, we also found that intranasal instillation of antibiotics or an inhibitor of reactive oxygen species was efficient in preventing spontaneous pulmonary inflammation. Thus, autophagy in myeloid cells, particularly alveolar macrophages, is critical for inhibiting spontaneous pulmonary inflammation, and pulmonary inflammation caused by dysfunctional autophagy is pharmacologically prevented. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| DOI | 10.4049/jimmunol.1403249 |
| Journal | The Journal of Immunology |
| Issue Number | 11 |
| Volume Number | 194 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2015-06-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Autophagy Genetics Lung Immunology Microtubule-associated Proteins Myeloid Cells Pneumonia Animals Anti-bacterial Agents Administration & Dosage Cells, Cultured Environmental Exposure Adverse Effects Immunity, Innate Microbiology Pathology Macrophages, Alveolar Mice Mice, Inbred C57bl Mice, Knockout Mitochondria Reactive Oxygen Species Antagonists & Inhibitors Metabolism Toll-like Receptor 4 Research Support, N.i.h., Extramural Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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