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- W2889769582 abstract "Objective. The cost and low success rates of the neurological drug development pipeline have diverted the pharmaceutical industry to 'nerve-on-a-chip' systems as preclinical models to streamline drug development. We present a novel micro-engineered 3D hydrogel platform for the culture of myelinated embryonic peripheral neural tissue to serve as an effective in vitro model for electrophysiological and histological analysis that could be adopted for preclinical testing. Approach. Dorsal root ganglions (DRG) from 15 d old embryonic rats were cultured in 3D hydrogel platforms. The interaction between Schwann cells (SC) and neurons during axonal development and regeneration affects the direction of growth and the synthesis of myelin sheaths. Induction of myelination was performed with two approaches: the addition of exogenous SC and promoting migration of endogenous SC. Main results. Histological analysis of the preparation utilizing exogenous SC showed aligned, highly fasciculated axonal growth with noticeable myelin sheaths around axons. Separately, electrophysiological testing of the preparation utilizing endogenous SC showed increased amplitude of the compound action potential and nerve conduction velocity in the presence of ascorbic acid (AA). Significance. This platform has immense potential to be a useful and translatable in vitro testing tool for drug discovery and myelination studies." @default.
- W2889769582 created "2018-09-27" @default.
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- W2889769582 date "2018-10-09" @default.
- W2889769582 modified "2023-09-24" @default.
- W2889769582 title "Methods for fabrication and evaluation of a 3D microengineered model of myelinated peripheral nerve" @default.
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- W2889769582 doi "https://doi.org/10.1088/1741-2552/aae129" @default.
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