Nature Communications (Aug 2020)

Lung-derived HMGB1 is detrimental for vascular remodeling of metabolically imbalanced arterial macrophages

  • Ludovic Boytard,
  • Tarik Hadi,
  • Michele Silvestro,
  • Hengdong Qu,
  • Andrew Kumpfbeck,
  • Rayan Sleiman,
  • Kissinger Hyppolite Fils,
  • Dornazsadat Alebrahim,
  • Francesco Boccalatte,
  • Matthias Kugler,
  • Annanina Corsica,
  • Bruce E. Gelb,
  • Glenn Jacobowitz,
  • George Miller,
  • Chiara Bellini,
  • Jessica Oakes,
  • Jean-Sébastien Silvestre,
  • Lior Zangi,
  • Bhama Ramkhelawon

DOI
https://doi.org/10.1038/s41467-020-18088-2
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 17

Abstract

Read online

Lung damage increases abdominal aortic aneurysm (AAA) incidence, but the mechanism was unclear. Here, the authors show that injured lungs leak HMGB1, increasing RIPK3 expression in arterial macrophages that subsequently alters mitochondrial function, leading to MMP12 expression and AAA development.