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Lipopolysaccharide-Mediated IL-10 Transcriptional Regulation Requires Sequential Induction of Type I IFNs and IL-27 in Macrophages

Open access
Iyer, Shankar Subramanian, Ghaffari, Amir Ali, Cheng, Genhong·2010·The Journal of Immunology

Abstract

IL-10 is a potent anti-inflammatory molecule that regulates excessive production of inflammatory cytokines during an infection or tissue damage. Dysregulation of IL-10 is associated with a number of autoimmune diseases, and so, understanding the mechanisms by which IL-10 gene expression is regulated remains an important area of study. Macrophages represent a major source of IL-10, which is generated in response to TLR signaling as a feedback mechanism to curtail inflammatory response. In this study, we identify a signaling pathway in murine bone marrow-derived macrophages in which activation of TLR4 by LPS induces the expression of IL-10 through the sequential induction of type I IFNs followed by induction and signaling through IL-27. We demonstrate that IL-27 signaling is required for robust IL-10 induction by LPS and type I IFNs. IL-27 leads directly to transcription of IL-10 through the activation of two required transcription factors, STAT1 and STAT3, which are recruited to the IL-10 promoter. Finally, through systematic functional promoter-reporter analysis, we identify three cis elements within the proximal IL-10 promoter that play an important role in regulating transcription of IL-10 in response to IL-27.

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Metadata

Authors
Iyer, S. S., Ghaffari, A. A., & Cheng, G.
Venue
The Journal of Immunology
Published
2010-12-01
Volume
185
Issue
11
Pages
6599-6607
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2108830583
Cited by
193
References
4
FWCI
3.70
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Lipopolysaccharide-Mediated IL-10 Transcriptional Regulation Requires Sequential Induction of Type I IFNs and IL-27 in Macrophages. https://app.cochat.ai/papers/10.4049/jimmunol.1002041
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Iyer, S. S., Ghaffari, A. A., & Cheng, G. (2010). Lipopolysaccharide-Mediated IL-10 Transcriptional Regulation Requires Sequential Induction of Type I IFNs and IL-27 in Macrophages. The Journal of Immunology. https://doi.org/10.4049/jimmunol.1002041

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