Aikaterini Gatsiou, Simon Tual-Chalot, Matteo Napoli, Almudena Ortega-Gomez, Tommy Regen, Rachit Badolia, Valeriana Cesarini, Claudia Garcia-Gonzalez, Raphael Chevre, Giorgia Ciliberti, Carlos Silvestre-Roig, Maurizio Martini, Jedrzej Hoffmann, Rana Hamouche, Joseph R Visker, Nikolaos Diakos, Astrid Wietelmann, Domenico Alessandro Silvestris, Georgios Georgiopoulos, Ali Moshfegh, Andre Schneider, Wei Chen, Stefan Guenther, Johannes Backs, Shin Kwak, Craig H Selzman, Kimon Stamatelopoulos, Stefan Rose-John, Christian Trautwein, Ioakim Spyridopoulos, Thomas Braun, Ari Waisman, Angela Gallo, Stavros G Drakos, Stefanie Dimmeler, Markus Sperandio, Oliver Soehnlein, Konstantinos Stellos
Immune cell trafficking constitutes a fundamental component of immunological response to tissue injury, but the contribution of intrinsic RNA nucleotide modifications to this response remains elusive. We report that RNA editor ADAR2 exerts a tissue- and stress-specific regulation of endothelial responses to interleukin-6 (IL-6), which tightly controls leukocyte trafficking in IL-6-inflamed and ischemic tissues. Genetic ablation of ADAR2 from vascular endothelial cells diminished myeloid cell rolling and adhesion on vascular walls and reduced immune cell infiltration within ischemic tissues...
May 9, 2023: Immunity