Victor Tkachev, Ashley Vanderbeck, Eric Perkey, Scott N Furlan, Connor McGuckin, Daniela Gómez Atria, Ulrike Gerdemann, Xianliang Rui, Jennifer Lane, Daniel J Hunt, Hengqi Zheng, Lucrezia Colonna, Michelle Hoffman, Alison Yu, Riley Outen, Samantha Kelly, Anneka Allman, Ute Koch, Freddy Radtke, Burkhard Ludewig, Brandon Burbach, Yoji Shimizu, Angela Panoskaltsis-Mortari, Guoying Chen, Stephen M Carpenter, Olivier Harari, Frank Kuhnert, Gavin Thurston, Bruce R Blazar, Leslie S Kean, Ivan Maillard
Notch signaling promotes T cell pathogenicity and graft-versus-host disease (GVHD) after allogeneic hematopoietic cell transplantation (allo-HCT) in mice, with a dominant role for the Delta-like Notch ligand DLL4. To assess whether Notch's effects are evolutionarily conserved and to identify the mechanisms of Notch signaling inhibition, we studied antibody-mediated DLL4 blockade in a nonhuman primate (NHP) model similar to human allo-HCT. Short-term DLL4 blockade improved posttransplant survival with durable protection from gastrointestinal GVHD in particular...
June 28, 2023: Science Translational Medicine