Cited by 395Immunotherapy and Immune ResponsesRNA Interference and Gene DeliveryInfluenza Virus Research Studies

Efficient Targeting and Activation of Antigen-Presenting Cells In Vivo after Modified mRNA Vaccine Administration in Rhesus Macaques

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Liang, Frank, Lindgren, Gustaf, Lin, Ang, Thompson, Elizabeth A., Ols, Sebastian, Röhss, Josefine, John, Shinu, Hassett, Kimberly +6 more·2017·Molecular Therapy

Abstract

mRNA vaccines are rapidly emerging as a powerful platform for infectious diseases because they are well tolerated, immunogenic, and scalable and are built on precise but adaptable antigen design. We show that two immunizations of modified non-replicating mRNA encoding influenza H10 hemagglutinin (HA) and encapsulated in lipid nanoparticles (LNP) induce protective HA inhibition titers and H10-specific CD4 + T cell responses after intramuscular or intradermal delivery in rhesus macaques. Administration of LNP/mRNA induced rapid and local infiltration of neutrophils, monocytes, and dendritic cells (DCs) to the site of administration and the draining lymph nodes (LNs). While these cells efficiently internalized LNP, mainly monocytes and DCs translated the mRNA and upregulated key co-stimulatory receptors (CD80 and CD86). This coincided with upregulation of type I IFN-inducible genes, including MX1 and CXCL10. The innate immune activation was transient and resulted in priming of H10-specific CD4 + T cells exclusively in the vaccine-draining LNs. Collectively, this demonstrates that mRNA-based vaccines induce type-I IFN-polarized innate immunity and, when combined with antigen production by antigen-presenting cells, lead to generation of potent vaccine-specific responses.

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Crossref · 10.1016/j.ymthe.2017.08.006

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  • More robust germinal centre responses are consistent with antigen dissemination to multiple lymph nodes and the self-adjuvating characteristics of the mRNA-lipid nanoparticle vaccine platform compared to nonadjuvanted inactivated vaccines used for seasonal influenza virus vaccination.

    “More robust germinal centre responses are consistent with antigen dissemination to multiple lymph nodes and the self-adjuvating characteristics of the mRNA–lipid nanoparticle vaccine platform compared to nonadjuvanted inactivated vaccines used for seasonal influenza virus vaccination7,20,21.”
  • Encapsulating mRNA in LNPs enhances delivery to the cytosol of antigen-presenting cells.

    “and enhances delivery to the cytosol of antigen-presenting cells (Liang et al., 2017, Lindsay et al., 2019).”

    From mRNA-lipid nanoparticle COVID-19 vaccines: structure and stability (2021) · cites this paper as Liang et al., 2017

  • Vaccine targeted cell types such as dendritic cells and monocytes highly express LDL receptors and other scavenger receptors.

    “Vaccine targeted cell types (see Mode of action), such as dendritic cells (DCs) and monocytes, highly express LDL receptors and other scavenger receptors [41]”

    From The dawn of mRNA vaccines: the COVID-19 case (2021) · cites this paper as [41]

  • Similar to classical vaccine approaches, COVID-19 mRNA vaccines are injected in the muscle, where they trigger localized and transient inflammation that recruits different immune cells to the injection site.

    “Similar to the more classical vaccine approaches, the COVID-19 mRNA vaccines are injected in the muscle, where they trigger localized and transient inflammation that recruits different immune cells to the injection site (Fig. 3 ) [11,41]”

    From The dawn of mRNA vaccines: the COVID-19 case (2021) · cites this paper as [41]

  • According to mechanistic studies on the fate of mRNA LNPs in rhesus monkeys, primarily monocytes and dendritic cell subsets translate the mRNA, likely involving ApoE-dependent endocytosis.

    “According to mechanistic studies on the fate of mRNA LNPs in rhesus monkeys, primarily monocytes and DC subsets translate the mRNA, likely involving ApoE dependent endocytosis [41]”

    From The dawn of mRNA vaccines: the COVID-19 case (2021) · cites this paper as [41]

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Authors
Liang, F., Lindgren, G., Lin, A., Thompson, E. A., Ols, S., Röhss, J., John, S., Hassett, K., Yuzhakov, O., Bahl, K., Brito, L. A., Salter, H., Ciaramella, G., & Loré, K.
Affiliations
  • Karolinska Institutet (SE)
  • Moderna Therapeutics (United States) (US)
Corresponding author
Loré, Karin
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2017-12
Volume
25
Issue
12
Pages
2635-2647
ISSN
1525-0016 (ISSN-L)
OpenAlex
W2745973480
Cited by
395
References
50
Citations by year
2026: 33 · 2025: 69 · 2024: 60 · 2023: 53 · 2022: 66 · 2021: 62 · 2020: 23 · 2019: 20 · 2018: 7 · 2017: 2
FWCI
6.37
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • Swedish Research Council (2015-02608)
  • Fernström Foundation
  • Swedish Society of Medicine
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
Keywords
mRNA vaccines, lipid nanoparticles, antigen-presenting cells, dendritic cells, monocytes, CD4+ T cell responses, type I interferon, MX1, CXCL10, intradermal vaccination, intramuscular vaccination, innate immune activation, rhesus monkeys
MeSH terms
Animals, Antigen-Presenting Cells, Immunization, Influenza Vaccines, Injections, Intradermal, Lymph Nodes, Macaca mulatta, Phenotype, RNA, Messenger, T-Lymphocytes, Vaccines, Gene Expression, Immunophenotyping, Cytokines

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