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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Parrish-novak, J. Topouzis, S. Presnell, S. R. Storey, H. Chen, Z. Xu, W. Schlutsmeyer, S. Brender, T. Dillon, S. R. Hammond, A. Gao, Z. Clegg, C. H. Kindsvogel, W. Gilbert, T. Madden, K. Grant, F. J. Foster, D. C. Jaspers, S. Chandrasekher, Y. Whitmore, T. E. Maurer, M. Yao, L. Jelinek, L. |
| Description | Author Affiliation: Xu W ( ZymoGenetics Inc., Seattle, WA 98102, USA.); |
| Abstract | IL-22 is an IL-10 homologue that binds to and signals through the class II cytokine receptor heterodimer IL-22RA1/CRF2-4. IL-22 is produced by T cells and induces the production of acute-phase reactants in vitro and in vivo, suggesting its involvement in inflammation. Here we report the identification of a class II cytokine receptor designated IL-22RA2 (IL-22 receptor-alpha 2) that appears to be a naturally expressed soluble receptor. IL-22RA2 shares amino acid sequence homology with IL-22RA1 (also known as IL-22R, zcytor11, and CRF2-9) and is physically adjacent to IL-20Ralpha and IFN-gammaR1 on chromosome 6q23.3-24.2. We demonstrate that IL-22RA2 binds specifically to IL-22 and neutralizes IL-22-induced proliferation of BaF3 cells expressing IL-22 receptor subunits. IL-22RA2 mRNA is highly expressed in placenta and spleen by Northern blotting. PCR analysis using RNA from various tissues and cell lines showed that IL-22RA2 was expressed in a range of tissues, including those in the digestive, female reproductive, and immune systems. In situ hybridization revealed the dominant cell types expressing IL-22RA2 were mononuclear cells and epithelium. Because IL-22 induces the expression of acute phase reactants, IL-22RA2 may play an important role as an IL-22 antagonist in the regulation of inflammatory responses. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 17 |
| Volume Number | 98 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2001-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Interleukins Antagonists & Inhibitors Receptors, Interleukin Physiology Amino Acid Sequence Animals B-Lymphocytes Metabolism Blotting, Northern Carcinoma Cell Line Chromosome Mapping Chromosomes, Human, Pair 6 Genetics Epithelial Cells Genes Immune System Lymphoid Tissue Mice Molecular Sequence Data Monocytes Neoplasm Proteins Biosynthesis Organ Specificity Ovarian Neoplasms Placenta Polymerase Chain Reaction RNA, Messenger Radiation Hybrid Mapping Isolation & Purification Recombinant Fusion Proteins Sequence Alignment Sequence Homology, Amino Acid Skin Spleen Transfection Comparative Study Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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