Nature Communications (Jul 2022)

ADAMTS18+ villus tip telocytes maintain a polarized VEGFA signaling domain and fenestrations in nutrient-absorbing intestinal blood vessels

  • Jeremiah Bernier-Latmani,
  • Cristina Mauri,
  • Rachel Marcone,
  • François Renevey,
  • Stephan Durot,
  • Liqun He,
  • Michael Vanlandewijck,
  • Catherine Maclachlan,
  • Suzel Davanture,
  • Nicola Zamboni,
  • Graham W. Knott,
  • Sanjiv A. Luther,
  • Christer Betsholtz,
  • Mauro Delorenzi,
  • Cathrin Brisken,
  • Tatiana V. Petrova

DOI
https://doi.org/10.1038/s41467-022-31571-2
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 17

Abstract

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The molecular mechanisms ensuring the specialized structure of small intestinal villus tip blood vessels are incompletely understood. Here the authors show that ADAMTS18+ telocytes maintain a “just-right” level and location of VEGFA signaling on intestinal villus blood vessels, thereby ensuring the presence of endothelial fenestrae for nutrient absorption, while avoiding excessive leakiness and destabilization of villus tip epithelial structures.