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- W3176479948 abstract "Abstract Microphysiological systems mimic the in-vivo cellular ensemble and microenvironment with the goal of providing more human-like models for biopharmaceutical research. We report the first such model of the blood-brain barrier (BBB-on-chip) featuring both isogenic human induced pluripotent stem cell (hiPSC)-derived cells and continuous barrier integrity monitoring with <2-minute temporal resolution. We showcase its capabilities in the first microphysiological study of nitrosative stress and antioxidant prophylaxis. Relying on off-stoichiometry thiol-ene epoxy (OSTE+) for fabrication greatly facilitates assembly and sensor integration compared to the prevalent polydimethylsiloxane devices. The integrated cell-substrate endothelial resistance monitoring allows us to capture formation and breakdown of our blood-brain barrier model, consisting of co-cultured hiPSC-derived endothelial-like and astrocyte-like cells. We observe clear cellular disruption when exposing the BBB-on-chip to the nitrosative stressor linsidomine, and report on the barrier permeability and barrier-protective effects of the antioxidant N -acetylcysteine amide. Using metabolomic network analysis, we further find drug-induced changes consistent with prior literature regarding, e.g., cysteine and glutathione involvement. A model like ours opens new possibilities for drug screening studies and personalized medicine, relying solely on isogenic human-derived cells and providing high-resolution temporal readouts that can help in pharmacodynamic studies." @default.
- W3176479948 created "2021-07-05" @default.
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- W3176479948 date "2021-03-28" @default.
- W3176479948 modified "2023-10-16" @default.
- W3176479948 title "Continuous monitoring reveals protective effects of N-acetylcysteine amide on an isogenic microphysiological model of the neurovascular unit" @default.
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- W3176479948 doi "https://doi.org/10.1101/2021.03.26.433307" @default.
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