2026 | Prof. Dr. Lydia Sorokin | A Conceptually New 3-Dimensional Blood-Brain Barrier Model- Designed to Overcome the Limited Predictive Power of Current In Vitro Systems (BraIN)
Laufzeit
2026–2028
Abstract
Therapeutic access to the brain is severely restricted by the blood–brain barrier (BBB), and current in vitro models fail to reliably predict drug penetration mainly because they fail to recapitulate key aspects of BBB physiology. Existing 2D and 3D models oversimplify multicellular architecture, neglect the astroglial barrier, and lack physiologically relevant mechanical and biochemical environments, contributing to high failure rates in CNS drug development. This significantly hampers the development of better treatments for neurological disorders, which affect over 3.4 billion people worldwide. We propose BraIN, a conceptually new, human 3D BBB model that embeds iPSC-derived brain-like endothelial cells, pericytes, and a functional astroglial barrier within a tuneable vinyl sulfone dextran (DexVS) hydrogel. Unlike other hydrogels, DexVS enables independent control of stiffness, adhesiveness, and degradability, supporting formation of a tight endothelial barrier, basement membrane deposition, and polarized astrocyte endfeet formation. By translating our in vivo knowledge of the BBB to an in vitro engineered system, BraIN overcomes limitations of existing models and provides a scalable, reproducible model for predictive CNS drug screening and mechanistic studies of astroglial barrier biology. This Proof-of-Concept project will optimize, validate, and scale the BraIN spheroid system, leading to in the future to a robust, patentable model for early-stage pharmaceutical and biotechnology applications. Success will enable reliable assessment of BBB penetration, reduce late-stage drug development failures, and create a foundation for licensing, collaborative development, or spin-out formation.
Prof. Dr. Lydia Sorokins Profil an der Universität Münster
Projektinformationen des ERC