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Blood–Brain Barrier Dysfunction in a 3D In Vitro Model of Alzheimer's Disease

Author(s)
Shin, Yoojin; Choi, Se Hoon; Kim, Eunhee; Bylykbashi, Enjana; Kim, Jeong Ah; Chung, Seok; Kim, Doo Yeon; Kamm, Roger Dale; Tanzi, Rudolph E.; ... Show more Show less
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Abstract
Harmful materials in the blood are prevented from entering the healthy brain by a highly selective blood–brain barrier (BBB), and impairment of barrier function has been associated with a variety of neurological diseases. In Alzheimer's disease (AD), BBB breakdown has been shown to occur even before cognitive decline and brain pathology. To investigate the role of the cerebral vasculature in AD, a physiologically relevant 3D human neural cell culture microfluidic model is developed having a brain endothelial cell monolayer with a BBB-like phenotype. This model is shown to recapitulate several key aspects of BBB dysfunction observed in AD patients: increased BBB permeability, decreased expression of claudin-1, claudin-5, and VE-cadherin, increased expression of matrix-metalloproteinase-2 and reactive oxygen species, and deposition of β-amyloid (Aβ) peptides at the vascular endothelium. Thus, it provides a well-controlled platform for investigating BBB function as well as for screening of new drugs that need to pass the BBB to gain access to neural tissues.
Date issued
2019-08
URI
https://hdl.handle.net/1721.1/129477
Department
Massachusetts Institute of Technology. Department of Biological Engineering; Massachusetts Institute of Technology. Department of Mechanical Engineering; Singapore-MIT Alliance in Research and Technology (SMART)
Journal
Advanced Science
Publisher
Wiley
Citation
Shin, Yoojin et al. "Blood–Brain Barrier Dysfunction in a 3D In Vitro Model of Alzheimer's Disease." Advanced Science 6, 20 (August 2019): 1900962. © 2019 The Authors
Version: Final published version
ISSN
2198-3844

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