Epigenomic priming of immune genes implicates oligodendroglia in multiple sclerosis susceptibility
- PMID: 35093191
- PMCID: PMC9810341
- DOI: 10.1016/j.neuron.2021.12.034
Epigenomic priming of immune genes implicates oligodendroglia in multiple sclerosis susceptibility
Abstract
Multiple sclerosis (MS) is characterized by a targeted attack on oligodendroglia (OLG) and myelin by immune cells, which are thought to be the main drivers of MS susceptibility. We found that immune genes exhibit a primed chromatin state in single mouse and human OLG in a non-disease context, compatible with transitions to immune-competent states in MS. We identified BACH1 and STAT1 as transcription factors involved in immune gene regulation in oligodendrocyte precursor cells (OPCs). A subset of immune genes presents bivalency of H3K4me3/H3K27me3 in OPCs, with Polycomb inhibition leading to their increased activation upon interferon gamma (IFN-γ) treatment. Some MS susceptibility single-nucleotide polymorphisms (SNPs) overlap with these regulatory regions in mouse and human OLG. Treatment of mouse OPCs with IFN-γ leads to chromatin architecture remodeling at these loci and altered expression of interacting genes. Thus, the susceptibility for MS may involve OLG, which therefore constitutes novel targets for immunological-based therapies for MS.
Keywords: Polycomb; chromatin; genome-wide association studies; histone modifications; major histocompatibility complex; multiple sclerosis; myelin; neuroimmunology; oligodendrocyte; single-nucleotide polymorphisms.
Copyright © 2021 The Author(s). Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Declaration of interests H.Y.C. is a co-founder of Accent Therapeutics and Boundless Bio and an advisor to 10x Genomics, Arsenal Biosciences, and Spring Discovery. D.M. and D.C. are employees at Roche Pharma Research and Early Development. The other authors declare no competing interests.
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Comment in
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Primed and ready.Nat Rev Neurosci. 2022 Apr;23(4):189. doi: 10.1038/s41583-022-00575-8. Nat Rev Neurosci. 2022. PMID: 35194224 No abstract available.
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Immune genes outside immune cells for multiple sclerosis.Neuron. 2022 Apr 6;110(7):1090-1092. doi: 10.1016/j.neuron.2022.03.017. Neuron. 2022. PMID: 35390286
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