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T cells down-regulate macrophage TNF production by IRAK1-mediated IL-10 expression and control innate hyperinflammation.

Publication ,  Journal Article
Inoue, M; Arikawa, T; Chen, Y-H; Moriwaki, Y; Price, M; Brown, M; Perfect, JR; Shinohara, ML
Published in: Proc Natl Acad Sci U S A
April 8, 2014

Endotoxemia is caused by excessive inflammation, but the immune system has various mechanisms to avoid collateral organ damage in endotoxemia. A handful of reports have shown that innate immune responses are suppressed by the adaptive immune system. However, the molecular mechanism by which adaptive immune cells suppress innate inflammatory responses is not clear. Here, we report that T cells are shown to interact with macrophages at the early stage of enodotoxemia and to prolong survival of mice through controlling TNF and IL-10 levels by macrophage CD40 stimulation. The cross-talk between CD40 and toll-like receptor (TLR4) signaling first mediates IL-1 receptor-associated kinase 1 (IRAK1) nuclear translocation and its binding to the IL-10 gene promoter in macrophages, without interfering with the NFκB pathway. IL-10 is then detected by macrophages in an autocrine fashion to destabilize Tnfa mRNA. To induce IRAK1-mediated IL-10 expression, signals from both CD40 and TLR4 are essential. CD40 signaling induces IRAK1 sumoylation in the presence of TNF receptor-associated factor 2 (TRAF2) and intracellular isoform of osteopontin (iOPN) whereas TLR4 signaling provides IFN regulatory factor 5 (IRF5) as a chaperone for sumoylated IRAK1 nuclear translocation. Interaction of T cells with macrophages was observed in the spleen in vivo after endotoxemia induction with LPS injection. Our study demonstrates a mechanistic basis for the immunosuppressive role of macrophage CD40 in LPS endotoxemia.

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Published In

Proc Natl Acad Sci U S A

DOI

EISSN

1091-6490

Publication Date

April 8, 2014

Volume

111

Issue

14

Start / End Page

5295 / 5300

Location

United States

Related Subject Headings

  • Tumor Necrosis Factor-alpha
  • Toll-Like Receptor 4
  • T-Lymphocytes
  • Sumoylation
  • Signal Transduction
  • Protein Transport
  • Mice
  • Macrophages
  • Interleukin-10
  • Interleukin-1 Receptor-Associated Kinases
 

Citation

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Inoue, M., Arikawa, T., Chen, Y.-H., Moriwaki, Y., Price, M., Brown, M., … Shinohara, M. L. (2014). T cells down-regulate macrophage TNF production by IRAK1-mediated IL-10 expression and control innate hyperinflammation. Proc Natl Acad Sci U S A, 111(14), 5295–5300. https://doi.org/10.1073/pnas.1321427111
Inoue, Makoto, Tomohiro Arikawa, Yu-Hsun Chen, Yasuhiro Moriwaki, Michael Price, Michael Brown, John R. Perfect, and Mari L. Shinohara. “T cells down-regulate macrophage TNF production by IRAK1-mediated IL-10 expression and control innate hyperinflammation.Proc Natl Acad Sci U S A 111, no. 14 (April 8, 2014): 5295–5300. https://doi.org/10.1073/pnas.1321427111.
Inoue M, Arikawa T, Chen Y-H, Moriwaki Y, Price M, Brown M, et al. T cells down-regulate macrophage TNF production by IRAK1-mediated IL-10 expression and control innate hyperinflammation. Proc Natl Acad Sci U S A. 2014 Apr 8;111(14):5295–300.
Inoue, Makoto, et al. “T cells down-regulate macrophage TNF production by IRAK1-mediated IL-10 expression and control innate hyperinflammation.Proc Natl Acad Sci U S A, vol. 111, no. 14, Apr. 2014, pp. 5295–300. Pubmed, doi:10.1073/pnas.1321427111.
Inoue M, Arikawa T, Chen Y-H, Moriwaki Y, Price M, Brown M, Perfect JR, Shinohara ML. T cells down-regulate macrophage TNF production by IRAK1-mediated IL-10 expression and control innate hyperinflammation. Proc Natl Acad Sci U S A. 2014 Apr 8;111(14):5295–5300.
Journal cover image

Published In

Proc Natl Acad Sci U S A

DOI

EISSN

1091-6490

Publication Date

April 8, 2014

Volume

111

Issue

14

Start / End Page

5295 / 5300

Location

United States

Related Subject Headings

  • Tumor Necrosis Factor-alpha
  • Toll-Like Receptor 4
  • T-Lymphocytes
  • Sumoylation
  • Signal Transduction
  • Protein Transport
  • Mice
  • Macrophages
  • Interleukin-10
  • Interleukin-1 Receptor-Associated Kinases