Nogo-A is secreted in extracellular vesicles, occurs in blood and can influence vascular permeability. - Rust, Ruslan; Holm, Mea M; Egger, Matteo; Weinmann, Oliver; van Rossum, Daniёlle; Walter, Fruzsina R; Santa-Maria, Ana Raquel; Grönnert, Lisa; Maurer, Michael A; Kraler, Simon; Akhmedov, Alexander; Cideciyan, Rose; et al. (Journal of Cerebral Blood Flow & Metabolism, 2024)