Abstract

Multiple sclerosis (MS) is an autoimmune disease that involves an immune-mediated inflammatory response in the central nervous system and optic nerve resulting in demyelination and neural degeneration, the cause of which is unknown. The adult central nervous system has the capacity to remyelinate axons by generating new oligodendrocytes (OLs). To identify clinical candidate compounds that may promote remyelination, we have developed a high-throughput screening (HTS) assay to identify compounds that promote the differentiation of oligodendrocyte precursor cells (OPCs) into OLs. Using acutely dissociated and purified rat OPCs coupled with immunofluorescent image quantification, we have developed an OL differentiation assay. Building on OPC culturing techniques developed over the past 30 years, we have scaled up the isolation and purification process to generate sufficient quantities for HTS. We then describe the use of these acutely derived OPCs in an assay designed to identify compounds that promote differentiation into OLs. We have validated this assay with a known promoter of differentiation, thyroid hormone, and subsequently used the assay to screen the NIH clinical collection library (Lariosa-Willingham, etal., 2016). © 2018 by John Wiley & Sons, Inc.

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