Nature Communications (Oct 2022)

Optineurin links Hace1-dependent Rac ubiquitylation to integrin-mediated mechanotransduction to control bacterial invasion and cell division

  • Serena Petracchini,
  • Daniel Hamaoui,
  • Anne Doye,
  • Atef Asnacios,
  • Florian Fage,
  • Elisa Vitiello,
  • Martial Balland,
  • Sebastien Janel,
  • Frank Lafont,
  • Mukund Gupta,
  • Benoit Ladoux,
  • Jerôme Gilleron,
  • Teresa M. Maia,
  • Francis Impens,
  • Laurent Gagnoux-Palacios,
  • Mads Daugaard,
  • Poul H. Sorensen,
  • Emmanuel Lemichez,
  • Amel Mettouchi

DOI
https://doi.org/10.1038/s41467-022-33803-x
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 22

Abstract

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Uropathogenic strains of Escherichia coli (UPEC) are a leading cause of urinary tract infections (UTIs) and invasion involves Rho GTPase members, notably Rac1, to drive actin cytoskeleton rearrangement leading to engulfment. Here, Petracchini et al. provide evidence of an ECM stiffnessmodulated role of Optineurin (OPTN), which regulates HACE1-dependant Rac1 activity and thus controls integrinmediated mechanotransduction and bacterial invasion.