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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Schoenbein, C. Docke, W-D Wolk, K. Belbe, G. Hoflich, C. Jung, M. Grutz, G. Sterry, W. Volk, H-D Asadullah, K. Sabat, R. |
| Description | Country affiliation: Germany Author Affiliation: Schoenbein C ( Interdisciplinary Group of Molecular Immunopathology, Dermatology/Medical Immunology, University Hospital Charité, Berlin, Germany.) |
| Abstract | Interleukin (IL)-10 is one of the most crucial immunoregulatory cytokines. Its short-term effects have been analysed extensively, but little is known about its long-term effects. This is of considerable importance, as high systemic IL-10 levels are present for long periods in patients with persistent viral infections, certain cancers and in critical care patients. Our study investigated the effects of the long-term presence of IL-10 on human peripheral blood monocytes. In vitro, IL-10 treatment of these cells for 7 days induced the development of a novel cell type characterized by unique phenotypical and functional characteristics. These cells showed high HLA-DR expression and low expression of CD86 and other co-stimulatory molecules on their surface. The mRNA levels of both HLA-DR and CD86 were high, but no intracellular accumulation of CD86 protein was observed. With respect to its function, these cells showed strongly diminished tumour necrosis factor-alpha production following lipopolysaccharide stimulation, strongly diminished allogenic CD4(+) T cell stimulatory capacity, and even induced a hyporesponsive state in CD4(+) T cells. The phenotype remained stable despite the removal of IL-10. In vivo, we found monocytic cells from patients exhibiting this phenotype after long-term IL-10 exposure. These results complement our knowledge further about the biological effects of IL-10 and may provide an explanation for the sustained immunodeficiency in cases of the persistent presence of systemic IL-10. |
| File Format | HTM / HTML |
| ISSN | 00099104 |
| e-ISSN | 13652249 |
| Journal | Clinical & Experimental Immunology |
| Issue Number | 2 |
| Volume Number | 151 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2008-02-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | Open |
| Subject Keyword | Discipline Immunology Interleukin-10 Immunology Monocytes Antigen-presenting Cells Antigens, Cd86 Genetics Metabolism Cd4-positive T-lymphocytes Cells, Cultured Gene Expression Regulation Hla-dr Antigens Immunophenotyping Therapeutic Use Isoantigens Lymphocyte Activation Psoriasis Drug Therapy Rna, Messenger Tumor Necrosis Factor-alpha Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Immunology and Allergy Immunology |
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