Nature Communications (Jul 2020)

STAT3 serine phosphorylation is required for TLR4 metabolic reprogramming and IL-1β expression

  • Jesse J. Balic,
  • Hassan Albargy,
  • Kevin Luu,
  • Francis J. Kirby,
  • W. Samantha N. Jayasekara,
  • Finbar Mansell,
  • Daniel J. Garama,
  • Dominic De Nardo,
  • Nikola Baschuk,
  • Cynthia Louis,
  • Fiachra Humphries,
  • Katherine Fitzgerald,
  • Eicke Latz,
  • Daniel J. Gough,
  • Ashley Mansell

DOI
https://doi.org/10.1038/s41467-020-17669-5
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 11

Abstract

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TLR4 signalling can reprogram the metabolism of macrophages to be more glycolytic and proinflammatory. Here the authors show that LPS and TLR4 signalling results in recruitment of TBK1, which in turn phosphorylates serine 727 on STAT3 to enable a proinflammatory switch via an effect on mitochondrial metabolism.