hrp0095p1-203 | Adrenals and HPA Axis | ESPE2022

P450 oxireductase (POR) regulates blood brain (BBB) maturation by mediating retinoic acid (RA) metabolism in a model of the human BBB

Dor Zlotnik , Tatiana Rabinski , Aviv Halfon , Inbar Plascheks , Hadar Benyamini , Yuval Nevo , Orly Yahalom-Gershoni , Benyamin Rosental , Ayal Ben-Zvi , Gad Vatine , Eli Hershkovitz

Background: The blood-brain barrier (BBB) is a multicellular neurovascular unit (NVU) that allows selective passage of necessary molecules into the central nervous system (CNS) while limiting the entry of neurotoxins and most drugs. A cross talk with pericytes and neural cells mediates the acquisition of tight junctions (TJs) in brain microvascular endothelial cells (BMECs), which limit the paracellular passage of solutes, thereby regulating CNS homeostasis. H...