Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microglia

Abstract There is increasing genetic evidence for the role of microglia in neurodegenerative diseases, including Alzheimer’s, Parkinson’s, and motor neuron disease. Therefore, there is a need to generate authentic in vitro models to study human microglial physiology. Various methods have been develo...

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Main Authors: Sam J. Washer, Marta Perez-Alcantara, Yixi Chen, Juliette Steer, William S. James, Gosia Trynka, Andrew R. Bassett, Sally A. Cowley
Format: Article
Language:English
Published: Nature Portfolio 2022-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-23477-2
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author Sam J. Washer
Marta Perez-Alcantara
Yixi Chen
Juliette Steer
William S. James
Gosia Trynka
Andrew R. Bassett
Sally A. Cowley
author_facet Sam J. Washer
Marta Perez-Alcantara
Yixi Chen
Juliette Steer
William S. James
Gosia Trynka
Andrew R. Bassett
Sally A. Cowley
author_sort Sam J. Washer
collection DOAJ
description Abstract There is increasing genetic evidence for the role of microglia in neurodegenerative diseases, including Alzheimer’s, Parkinson’s, and motor neuron disease. Therefore, there is a need to generate authentic in vitro models to study human microglial physiology. Various methods have been developed using human induced Pluripotent Stem Cells (iPSC) to generate microglia, however, systematic approaches to identify which media components are actually essential for functional microglia are mostly lacking. Here, we systematically assess medium components, coatings, and growth factors required for iPSC differentiation to microglia. Using single-cell RNA sequencing, qPCR, and functional assays, with validation across two labs, we have identified several medium components from previous protocols that are redundant and do not contribute to microglial identity. We provide an optimised, defined medium which produces both transcriptionally and functionally relevant microglia for modelling microglial physiology in neuroinflammation and for drug discovery.
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spelling doaj.art-8437721023204dd8b1fa075d4b5d56b52022-12-22T04:15:07ZengNature PortfolioScientific Reports2045-23222022-11-0112111610.1038/s41598-022-23477-2Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microgliaSam J. Washer0Marta Perez-Alcantara1Yixi Chen2Juliette Steer3William S. James4Gosia Trynka5Andrew R. Bassett6Sally A. Cowley7James and Lillian Martin Centre for Stem Cell Research, Sir William Dunn School of Pathology, University of OxfordWellcome Sanger Institute, Wellcome Genome CampusWellcome Sanger Institute, Wellcome Genome CampusWellcome Sanger Institute, Wellcome Genome CampusJames and Lillian Martin Centre for Stem Cell Research, Sir William Dunn School of Pathology, University of OxfordWellcome Sanger Institute, Wellcome Genome CampusWellcome Sanger Institute, Wellcome Genome CampusJames and Lillian Martin Centre for Stem Cell Research, Sir William Dunn School of Pathology, University of OxfordAbstract There is increasing genetic evidence for the role of microglia in neurodegenerative diseases, including Alzheimer’s, Parkinson’s, and motor neuron disease. Therefore, there is a need to generate authentic in vitro models to study human microglial physiology. Various methods have been developed using human induced Pluripotent Stem Cells (iPSC) to generate microglia, however, systematic approaches to identify which media components are actually essential for functional microglia are mostly lacking. Here, we systematically assess medium components, coatings, and growth factors required for iPSC differentiation to microglia. Using single-cell RNA sequencing, qPCR, and functional assays, with validation across two labs, we have identified several medium components from previous protocols that are redundant and do not contribute to microglial identity. We provide an optimised, defined medium which produces both transcriptionally and functionally relevant microglia for modelling microglial physiology in neuroinflammation and for drug discovery.https://doi.org/10.1038/s41598-022-23477-2
spellingShingle Sam J. Washer
Marta Perez-Alcantara
Yixi Chen
Juliette Steer
William S. James
Gosia Trynka
Andrew R. Bassett
Sally A. Cowley
Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microglia
Scientific Reports
title Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microglia
title_full Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microglia
title_fullStr Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microglia
title_full_unstemmed Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microglia
title_short Single-cell transcriptomics defines an improved, validated monoculture protocol for differentiation of human iPSC to microglia
title_sort single cell transcriptomics defines an improved validated monoculture protocol for differentiation of human ipsc to microglia
url https://doi.org/10.1038/s41598-022-23477-2
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