Cristina Cacho-Navas, Carmen López-Pujante, Natalia Reglero-Real, Natalia Colás-Algora, Ana Cuervo, Jose Javier Conesa, Susana Barroso, Gema de Rivas, Sergio Ciordia, Alberto Paradela, Gianluca D'Agostino, Carlo Manzo, Jorge Feito, Germán Andrés, Francisca Molina-Jiménez, Pedro Majano, Isabel Correas, José-Maria Carazo, Sussan Nourshargh, Meritxell Huch, Jaime Millán
Epithelial intercellular adhesion molecule (ICAM)-1 is apically polarized, interacts with, and guides leukocytes across epithelial barriers. Polarized hepatic epithelia organize their apical membrane domain into bile canaliculi and ducts, which are not accessible to circulating immune cells but that nevertheless confine most of ICAM-1. Here, by analyzing ICAM-1_KO human hepatic cells, liver organoids from ICAM-1_KO mice and rescue-of-function experiments, we show that ICAM-1 regulates epithelial apicobasal polarity in a leukocyte adhesion-independent manner...
April 10, 2024: ELife