S19-265 Recombinant Protein and Peptides to Boost Epithelial Barrier Function and Prevent Infections Cherpes Lab investigators discovered that recombinant ephrin-A3 or agonist ephrin-A3-derived peptides promote expression of cell-cell adhesion molecules in epithelial surfaces and improve epithelial barrier function. Thomas Cherpes Rodolfo Vicetti Miguel Nirk Quispe Calla