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Altered and allele-specific open chromatin landscape reveals epigenetic and genetic regulators of innate immunity in COVID-19

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Item Type:Article
Title:Altered and allele-specific open chromatin landscape reveals epigenetic and genetic regulators of innate immunity in COVID-19
Creators Name:Zhang, B., Zhang, Z., Koeken, V.A.C.M., Kumar, S., Aillaud, M., Tsay, H.C., Liu, Z., Kraft, A.R.M., Soon, C.F., Odak, I., Bošnjak, B., Vlot, A., Swertz, M.A., Ohler, U., Geffers, R., Illig, T., Huehn, J., Saliba, A.E., Sander, L.E., Förster, R., Xu, C.J., Cornberg, M., Schulte, L.N. and Li, Y.
Abstract:SARS-CoV-2 infection causes severe COVID-19 in some patients and mild in others. Dysfunctional innate immune responses have been identified to contribute to COVID-19 severity, but the key regulators are still unknown. Here, we present an integrative single-cell multi-omics analysis of peripheral blood mononuclear cells from hospitalized and convalescent COVID-19 patients. In classical monocytes, we identified genes that were potentially regulated by differential chromatin accessibility. Then, sub-clustering and motif-enrichment analyses reveals disease condition-specific regulation by transcription factors and their targets, including an interaction between (C/EBPs) and a long-noncoding RNA (LUCAT1), which we validated through loss-of-function experiments. Finally, we investigated genetic risk variants that exhibit allele-specific open chromatin (AsoC) in COVID-19 patients and identified a SNP rs6800484-C, which is associated with lower expression of (CCR2) and may contribute to higher viral loads and higher risk of COVID-19 hospitalization. Altogether, our study highlights the diverse genetic and epigenetic regulators that contribute to COVID-19.
Source:Cell Genomics
ISSN:2666-979X
Publisher:Cell Press
Volume:3
Number:2
Page Range:100232
Date:8 February 2023
Official Publication:https://doi.org/10.1016/j.xgen.2022.100232
PubMed:View item in PubMed

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