A CX3CR1 Reporter hESC Line Facilitates Integrative Analysis of In-Vitro-Derived Microglia and Improved Microglia Identity upon Neuron-Glia Co-culture


Multiple protocols have been published for generation of iMGLs from hESCs/iPSCs. To date, there are no guides to assist researchers to determine the most appropriate methodology for microglial studies. To establish a framework to facilitate future microglial studies, we first performed a comparative transcriptional analysis between iMGLs derived using three published datasets, which allowed us to establish the baseline protocol that is most representative of bona fide human microglia. Secondly, using CRISPR to tag the classic microglial marker CX3CR1 with nanoluciferase and tdTomato, we generated and functionally validated a reporter ESC line. Finally, using this cell line, we demonstrated that co-culture of iMGL precursors with human glia and neurons enhanced transcriptional resemblance of iMGLs to ex vivo microglia. Together, our comprehensive molecular analysis and reporter cell line are a useful resource for neurobiologists seeking to use iMGLs for disease modeling and drug screening studies. Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.

Authors Grubman A, Vandekolk TH, Schröder J, Sun G, Hatwell-Humble J, Chan J, Oksanen M, Lehtonen S, Hunt C, Koistinaho JE, Nilsson SK, Haynes JM, Pouton CW, Polo JM
Journal Stem cell reports
Publication Date 2020 Jun 9;14(6):1018-1032
PubMed 32442534
PubMed Central PMC7355140
DOI 10.1016/j.stemcr.2020.04.007

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