Cited by 299Influenza Virus Research StudiesRNA Interference and Gene DeliveryImmunotherapy and Immune Responses

A Multi-Targeting, Nucleoside-Modified mRNA Influenza Virus Vaccine Provides Broad Protection in Mice

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Freyn, Alec W., Ramos da Silva, Jamile, Rosado, Victoria C., Bliss, Carly M., Pine, Matthew, Mui, Barbara L., Tam, Ying K., Madden, Thomas D. +7 more·2020·Molecular Therapy

Abstract

Influenza viruses are respiratory pathogens of public health concern worldwide with up to 650,000 deaths occurring each year. Seasonal influenza virus vaccines are employed to prevent disease, but with limited effectiveness. Development of a universal influenza virus vaccine with the potential to elicit long-lasting, broadly cross-reactive immune responses is necessary for reducing influenza virus prevalence. In this study, we have utilized lipid nanoparticle-encapsulated, nucleoside-modified mRNA vaccines to intradermally deliver a combination of conserved influenza virus antigens (hemagglutinin stalk, neuraminidase, matrix-2 ion channel, and nucleoprotein) and induce strong immune responses with substantial breadth and potency in a murine model. The immunity conferred by nucleoside-modified mRNA-lipid nanoparticle vaccines provided protection from challenge with pandemic H1N1 virus at 500 times the median lethal dose after administration of a single immunization, and the combination vaccine protected from morbidity at a dose of 50 ng per antigen. The broad protective potential of a single dose of combination vaccine was confirmed by challenge with a panel of group 1 influenza A viruses. These findings support the advancement of nucleoside-modified mRNA-lipid nanoparticle vaccines expressing multiple conserved antigens as universal influenza virus vaccine candidates.

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Crossref · 10.1016/j.ymthe.2020.04.018

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  • A single mRNA vaccine can encode multiple antigens, strengthening the immune response against resilient pathogens.

    “Moreover, a single mRNA vaccine can encode multiple antigens, strengthening the immune response against resilient pathogens7”
  • A 50 ng dose of nucleoside-modified mRNA encoding three conserved influenza proteins (neuraminidase, nucleoprotein and matrix-2 ion channel protein) in addition to the haemagglutinin stalk generated broadly protective antibodies and protected mice from a 500× LD50 viral challenge.

    “Another study used LNPs to deliver a 50 ng dose of nucleoside-modified mRNA encoding three conserved influenza proteins: neuraminidase, nucleoprotein and matrix-2 ion channel protein (Fig. 4) in addition to the haemagglutinin stalk7. Incredibly, this minuscule mRNA dose generated broadly protective antibodies and protected mice from an extraordinarily large viral challenge (500× LD50).”

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Authors
Freyn, A. W., Ramos da Silva, J., Rosado, V. C., Bliss, C. M., Pine, M., Mui, B. L., Tam, Y. K., Madden, T. D., de Souza Ferreira, L. C., Weissman, D., Krammer, F., Coughlan, L., Palese, P., Pardi, N., & Nachbagauer, R.
Affiliations
  • Icahn School of Medicine at Mount Sinai (US)
  • University of Pennsylvania (US)
  • Acuitas Therapeutics (Canada) (CA)
Corresponding author
  • Pardi, Norbert
  • Nachbagauer, Raffael
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2020-07
Volume
28
Issue
7
Pages
1569-1584
ISSN
1525-0016 (ISSN-L)
OpenAlex
W3016394521
Cited by
299
References
67
Citations by year
2026: 25 · 2025: 58 · 2024: 50 · 2023: 55 · 2022: 58 · 2021: 44 · 2020: 9
FWCI
29.74
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • ORCA Online Research @Cardiff (Cardiff University) (submittedVersion)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (2019/01523-3)
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (AI07647, 5P01AI097092-07, 75N93019C00051, R01-AI146101-01)
  • U.S. Public Health Service (AI07647, 5P01AI097092-07)
Topics
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
universal influenza vaccine, nucleoside-modified mRNA, lipid nanoparticle vaccine, multi-antigen vaccine, hemagglutinin stalk, neuraminidase, matrix protein 2, nucleocapsid protein, pandemic H1N1, immunological cross-reactivity, intradermal drug delivery
MeSH terms
mRNA Vaccines, Animals, Antibodies, Viral, Antigens, Viral, Disease Models, Animal, Influenza Vaccines, Injections, Intradermal, Liposomes, Neuraminidase, Nucleosides, Orthomyxoviridae Infections, Vaccines, Synthetic, Hemagglutinin Glycoproteins, Influenza Virus, Nucleocapsid Proteins, NIH 3T3 Cells, Mice, Influenza A Virus, H1N1 Subtype, Nanoparticles

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