PMID- 7737285 OWN - NLM STAT- MEDLINE DCOM- 19950607 LR - 20061115 IS - 0014-2980 (Print) IS - 0014-2980 (Linking) VI - 25 IP - 4 DP - 1995 Apr TI - Interleukin-10 differentially regulates cytokine inhibitor and chemokine release from blood mononuclear cells and fibroblasts. PG - 1129-32 AB - In this study we have examined the effects of interleukin-10 (IL-10) on blood mononuclear cells (MNC) and on skin as well as on synovial fibroblasts. In unstimulated MNC, we found that IL-10 is a potent stimulator of interleukin-1 receptor antagonist (IL-1ra) and monocyte chemoattractant protein-1 (MCP-1) production and an inhibitor of IL-8 release. In cells exposed to IL-1 beta, it also moderately stimulated IL-1ra production and release of soluble tumor necrosis factor receptor p75 (sTNF-R p75) and inhibited IL-8 and MCP-1 production. In addition, we have evidence that the biological effects of IL-10 are not restricted to hematopoietic cells. IL-10 stimulated sTNF-R p55 dose-dependently and inhibited MCP-1 release from IL-1 beta-activated fibroblasts, whereas IL-8 production was not affected. Taken together, these findings identify novel biological actions of IL-10 on blood mononuclear and connective tissue cells which support its regulatory functions as a suppressor of inflammatory processes. FAU - Seitz, M AU - Seitz M AD - Division of Rheumatology, University Hospital, Bern, Switzerland. FAU - Loetscher, P AU - Loetscher P FAU - Dewald, B AU - Dewald B FAU - Towbin, H AU - Towbin H FAU - Gallati, H AU - Gallati H FAU - Baggiolini, M AU - Baggiolini M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Germany TA - Eur J Immunol JT - European journal of immunology JID - 1273201 RN - 0 (Chemokine CCL2) RN - 0 (Chemotactic Factors) RN - 0 (Interleukin-1) RN - 0 (Interleukin-8) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 130068-27-8 (Interleukin-10) SB - IM MH - Cells, Cultured MH - Chemokine CCL2 MH - Chemotactic Factors/*biosynthesis MH - Fibroblasts/immunology/metabolism MH - Humans MH - Interleukin-1/*biosynthesis MH - Interleukin-10/*pharmacology MH - Interleukin-8/*antagonists & inhibitors MH - Leukocytes, Mononuclear/drug effects/immunology/*metabolism MH - Receptors, Tumor Necrosis Factor/*biosynthesis MH - Skin/metabolism MH - Up-Regulation EDAT- 1995/04/01 00:00 MHDA- 1995/04/01 00:01 CRDT- 1995/04/01 00:00 PHST- 1995/04/01 00:00 [pubmed] PHST- 1995/04/01 00:01 [medline] PHST- 1995/04/01 00:00 [entrez] AID - 10.1002/eji.1830250443 [doi] PST - ppublish SO - Eur J Immunol. 1995 Apr;25(4):1129-32. doi: 10.1002/eji.1830250443.