Home > Publications Database > Persistent epigenetic memory of SARS-CoV-2 mRNA vaccination in monocyte-derived macrophages. > print

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024 7 _ |a 10.1038/s44320-025-00093-6
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037 _ _ |a DZNE-2025-00501
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100 1 _ |a Simonis, Alexander
|0 0000-0003-2945-9897
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245 _ _ |a Persistent epigenetic memory of SARS-CoV-2 mRNA vaccination in monocyte-derived macrophages.
260 _ _ |a [London]
|c 2025
|b Nature Publishing Group UK
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520 _ _ |a Immune memory plays a critical role in the development of durable antimicrobial immune responses. How precisely mRNA vaccines train innate immune cells to shape protective host defense mechanisms remains unknown. Here we show that SARS-CoV-2 mRNA vaccination significantly establishes histone H3 lysine 27 acetylation (H3K27ac) at promoters of human monocyte-derived macrophages, suggesting epigenetic memory. However, we found that two consecutive vaccinations were required for the persistence of H3K27ac, which matched with pro-inflammatory innate immune-associated transcriptional changes and antigen-mediated cytokine secretion. H3K27ac at promoter regions were preserved for six months and a single mRNA booster vaccine potently restored their levels and release of macrophage-derived cytokines. Interestingly, we found that H3K27ac at promoters is enriched for G-quadruplex DNA secondary structure-forming sequences in macrophage-derived nucleosome-depleted regions, linking epigenetic memory to nucleic acid structure. Collectively, these findings reveal that mRNA vaccines induce a highly dynamic and persistent training of innate immune cells enabling a sustained pro-inflammatory immune response.
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650 _ 7 |a Epigenetic Memory
|2 Other
650 _ 7 |a G-quadruplex
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650 _ 7 |a H3K27ac
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650 _ 7 |a SARS-Cov-2 mRNA Vaccination
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650 _ 7 |a Trained Innate Immunity
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650 _ 7 |a Histones
|2 NLM Chemicals
650 _ 7 |a COVID-19 Vaccines
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650 _ 7 |a Cytokines
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650 _ 7 |a RNA, Messenger
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650 _ 7 |a mRNA Vaccines
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650 _ 2 |a Humans
|2 MeSH
650 _ 2 |a Macrophages: immunology
|2 MeSH
650 _ 2 |a Macrophages: metabolism
|2 MeSH
650 _ 2 |a Epigenesis, Genetic
|2 MeSH
650 _ 2 |a SARS-CoV-2: immunology
|2 MeSH
650 _ 2 |a SARS-CoV-2: genetics
|2 MeSH
650 _ 2 |a COVID-19: immunology
|2 MeSH
650 _ 2 |a COVID-19: prevention & control
|2 MeSH
650 _ 2 |a Histones: metabolism
|2 MeSH
650 _ 2 |a Histones: immunology
|2 MeSH
650 _ 2 |a Histones: genetics
|2 MeSH
650 _ 2 |a Immunologic Memory
|2 MeSH
650 _ 2 |a Promoter Regions, Genetic
|2 MeSH
650 _ 2 |a Acetylation
|2 MeSH
650 _ 2 |a COVID-19 Vaccines: immunology
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650 _ 2 |a Immunity, Innate
|2 MeSH
650 _ 2 |a Cytokines: metabolism
|2 MeSH
650 _ 2 |a Vaccination
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650 _ 2 |a RNA, Messenger: immunology
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650 _ 2 |a mRNA Vaccines: immunology
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650 _ 2 |a Epigenetic Memory
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700 1 _ |a Theobald, Sebastian J
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700 1 _ |a Koch, Anna E
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700 1 _ |a Mummadavarapu, Ram
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700 1 _ |a Mudler, Julie M
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700 1 _ |a Pouikli, Andromachi
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700 1 _ |a Göbel, Ulrike
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700 1 _ |a Acton, Richard
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700 1 _ |a Winter, Sandra
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700 1 _ |a Holzmann, Dmitriy
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700 1 _ |a Walczak, Henning
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700 1 _ |a Ulas, Thomas
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700 1 _ |a Koch, Manuel
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700 1 _ |a Tessarz, Peter
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700 1 _ |a Hänsel-Hertsch, Robert
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700 1 _ |a Rybniker, Jan
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773 _ _ |a 10.1038/s44320-025-00093-6
|g Vol. 21, no. 4, p. 341 - 360
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|t Molecular systems biology
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