Alternatively activated macrophages express the IL-27 receptor alpha chain WSX-1. 2006

Dominik Rückerl, and Manuela Hessmann, and Takayuki Yoshimoto, and Stefan Ehlers, and Christoph Hölscher
Junior Research Group Molecular Infection Biology, Research Center Borstel, Parkallee 22, D-23845 Borstel, Germany. drueckerl@fz-borstel.de

The interleukin (IL)-27 receptor-alpha WSX-1 is one component of the heterodimeric IL-27 receptor that is expressed on various cell types including macrophages. We previously demonstrated that IL-27 induces STAT-3 and is able to inhibit the production of pro-inflammatory cytokines in activated macrophages suggesting a novel feed-back mechanism by which IL-27 can modulate excessive inflammation. Because IL-4 receptor-alpha (IL-4Ralpha)-induced alternatively activated macrophages have also been described to attenuate pathological inflammatory immune responses, we analyzed the contribution of IL-27 in alternative macrophage activation. In the present study, like IL-10 and IL-4, IL-27 was found to suppress IL-12/23p40 production in activated bone marrow-derived macrophages. Whereas IL-10 induced the upregulation of the IL-4Ralpha on macrophages, receptor expression was not triggered by IL-27. In contrast to IL-4, IL-27 did not induce alternative macrophage activation but IL-4 strongly upregulated the expression of WSX-1 on macrophages and alternative macrophage activation enhanced IL-27-mediated signalling. We therefore conclude from our study that IL-10, IL-4 and IL-27 collaborate in modulating macrophage activation by successive upregulation of the IL-4Ralpha and WSX-1 on alternatively activated macrophages.

UI MeSH Term Description Entries
D007378 Interleukins Soluble factors which stimulate growth-related activities of leukocytes as well as other cell types. They enhance cell proliferation and differentiation, DNA synthesis, secretion of other biologically active molecules and responses to immune and inflammatory stimuli. Interleukin
D008264 Macrophages The relatively long-lived phagocytic cell of mammalian tissues that are derived from blood MONOCYTES. Main types are PERITONEAL MACROPHAGES; ALVEOLAR MACROPHAGES; HISTIOCYTES; KUPFFER CELLS of the liver; and OSTEOCLASTS. They may further differentiate within chronic inflammatory lesions to EPITHELIOID CELLS or may fuse to form FOREIGN BODY GIANT CELLS or LANGHANS GIANT CELLS. (from The Dictionary of Cell Biology, Lackie and Dow, 3rd ed.) Bone Marrow-Derived Macrophages,Monocyte-Derived Macrophages,Macrophage,Macrophages, Monocyte-Derived,Bone Marrow Derived Macrophages,Bone Marrow-Derived Macrophage,Macrophage, Bone Marrow-Derived,Macrophage, Monocyte-Derived,Macrophages, Bone Marrow-Derived,Macrophages, Monocyte Derived,Monocyte Derived Macrophages,Monocyte-Derived Macrophage
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015847 Interleukin-4 A soluble factor produced by activated T-LYMPHOCYTES that induces the expression of MHC CLASS II GENES and FC RECEPTORS on B-LYMPHOCYTES and causes their proliferation and differentiation. It also acts on T-lymphocytes, MAST CELLS, and several other hematopoietic lineage cells. B-Cell Growth Factor-I,B-Cell Stimulatory Factor-1,Binetrakin,IL-4,Mast Cell Growth Factor-2,B Cell Stimulatory Factor-1,B-Cell Growth Factor-1,B-Cell Proliferating Factor,B-Cell Stimulating Factor-1,B-Cell Stimulatory Factor 1,BCGF-1,BSF-1,IL4,MCGF-2,B Cell Growth Factor 1,B Cell Growth Factor I,B Cell Proliferating Factor,B Cell Stimulating Factor 1,B Cell Stimulatory Factor 1,Interleukin 4,Mast Cell Growth Factor 2
D016753 Interleukin-10 A cytokine produced by a variety of cell types, including T-LYMPHOCYTES; MONOCYTES; DENDRITIC CELLS; and EPITHELIAL CELLS that exerts a variety of effects on immunoregulation and INFLAMMATION. Interleukin-10 combines with itself to form a homodimeric molecule that is the biologically active form of the protein. IL-10,CSIF-10,Cytokine Synthesis Inhibitory Factor,IL10,Interleukin 10
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D018121 Receptors, Cytokine Cell surface proteins that bind cytokines and trigger intracellular changes influencing the behavior of cells. Cytokine Receptors,Cytokine Receptor,Receptors, Cytokines,Cytokines Receptors,Receptor, Cytokine
D018123 Receptors, Interleukin Cell surface proteins that bind interleukins and trigger intracellular changes influencing the behavior of cells. Interleukin Receptors,Interleukin Receptor,Receptors, Interleukins,Interleukins Receptors,Receptor, Interleukin

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