The single-cell epigenomic and transcriptional landscape of immunity to influenza vaccination

Florian Wimmers, Michele Donato, Alex Kuo, Tal Ashuach, Shakti Gupta, Chunfeng Li, Mai Dvorak, Mariko Hinton Foecke, Sarah E. Chang, Thomas Hagan, Sanne E. De Jong, Holden T. Maecker, Robbert van der Most, Peggie Cheung, Mario Cortese, Steven E. Bosinger, Mark Davis, Nadine Rouphael, Shankar Subramaniam, Nir YosefPaul J. Utz, Purvesh Khatri, Bali Pulendran

Research output: Contribution to journalArticlepeer-review

Abstract

Emerging evidence indicates a fundamental role for the epigenome in immunity. Here, we mapped the epigenomic and transcriptional landscape of immunity to influenza vaccination in humans at the single-cell level. Vaccination against seasonal influenza induced persistently diminished H3K27ac in monocytes and myeloid dendritic cells (mDCs), which was associated with impaired cytokine responses to Toll-like receptor stimulation. Single-cell ATAC-seq analysis revealed an epigenomically distinct subcluster of monocytes with reduced chromatin accessibility at AP-1-targeted loci after vaccination. Similar effects were observed in response to vaccination with the AS03-adjuvanted H5N1 pandemic influenza vaccine. However, this vaccine also stimulated persistently increased chromatin accessibility at interferon response factor (IRF) loci in monocytes and mDCs. This was associated with elevated expression of antiviral genes and heightened resistance to the unrelated Zika and Dengue viruses. These results demonstrate that vaccination stimulates persistent epigenomic remodeling of the innate immune system and reveal AS03’s potential as an epigenetic adjuvant.

Original languageEnglish
Article numbere21
Pages (from-to)3915-3935
Number of pages42
JournalCell
Volume184
Issue number15
Early online date25 Jun 2021
DOIs
StatePublished - 22 Jul 2021
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Biochemistry,Genetics and Molecular Biology

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