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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chakraborty, Krishnendu Oriss, Timothy B. Ray, Anuradha Khare, Anupriya Ray, Prabir Krishnamoorthy, Nandini Huff, Rachael Morse, Christina Raundhal, Mahesh |
| Description | Author Affiliation: Oriss TB ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Krishnamoorthy N ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Raundhal M ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Morse C ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Chakraborty K ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Khare A ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Huff R ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Ray P ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213); Ray A ( Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213) |
| Abstract | We reported previously that c-kit ligation by membrane-bound stem cell factor (mSCF) boosts IL-6 production in dendritic cells (DCs) and a Th17-immune response. However, Th17 establishment also requires heterodimeric IL-23, but the mechanisms that regulate IL-23 gene expression in DCs are not fully understood. We show that IL-23p19 gene expression in lung DCs is dependent on mSCF, which is regulated by the metalloproteinase MMP-9. Th1-inducing conditions enhanced MMP-9 activity, causing cleavage of mSCF, whereas the opposite was true for Th17-promoting conditions. In MMP-9(-/-) mice, a Th1-inducing condition could maintain mSCF and enhance IL-23p19 in DCs, promoting IL-17-producing CD4(+) T cells in the lung. Conversely, mSCF cleavage from bone marrow DCs in vitro by rMMP-9 led to reduced IL-23p19 expression under Th17-inducing conditions, with dampening of intracellular AKT phosphorylation. Collectively, these results show that the c-kit/mSCF/MMP-9 axis regulates IL-23 gene expression in DCs to control IL-17 production in the lung. |
| ISSN | 00221767 |
| e-ISSN | 15506606 |
| DOI | 10.4049/jimmunol.1303183 |
| Journal | The Journal of Immunology |
| Issue Number | 12 |
| Volume Number | 192 |
| Language | English |
| Publisher | The American Association of Immunologists |
| Publisher Date | 2014-06-15 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Dendritic Cells Immunology Gene Expression Regulation Interleukin-17 Interleukin-23 Subunit P19 Lung Matrix Metalloproteinase 9 Stem Cell Factor Animals Cell Membrane Genetics Metabolism Cytology Biosynthesis Mice Mice, Knockout Phosphorylation Proto-oncogene Proteins C-akt Th1 Cells Th17 Cells Research Support, N.i.h., Extramural Discipline Immunology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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