Abstract
Although many cytokine receptors generate their signals via the STAT3 pathway, the IL-10R appears unique in promoting a potent anti-inflammatory response (AIR) via STAT3 to antagonize proinflammatory signals that activate the innate immune response. We found that heterologous cytokine receptor systems that activate STAT3 but are naturally refractory (the IL-22R), or engineered to be refractory (the IL-6, leptin, and erythropoietin receptors), to suppressor of cytokine signaling-3-mediated inhibition activate an AIR indistinguishable from IL-10. We conclude that the AIR is a generic cytokine signaling pathway dependent on STAT3 but not unique to the IL-10R.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Enzyme-Linked Immunosorbent Assay
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Gene Expression*
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Immunoblotting
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Inflammation*
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Interleukin-10 / metabolism*
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Interleukin-6 / metabolism*
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Mice
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Oligonucleotide Array Sequence Analysis
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Receptors, Interleukin-10 / metabolism
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Reverse Transcriptase Polymerase Chain Reaction
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STAT3 Transcription Factor / metabolism*
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Signal Transduction / immunology*
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Suppressor of Cytokine Signaling 3 Protein
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Suppressor of Cytokine Signaling Proteins / metabolism
Substances
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Interleukin-6
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Receptors, Interleukin-10
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STAT3 Transcription Factor
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Socs3 protein, mouse
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Stat3 protein, mouse
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Suppressor of Cytokine Signaling 3 Protein
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Suppressor of Cytokine Signaling Proteins
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Interleukin-10