ArticlePloS one2018
Combination of M2e peptide with stalk HA epitopes of influenza A virus enhances protective properties of recombinant vaccine.
Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 33 citations in OpenAlex.
- Pentameric M2e influenza vaccine candidate generates strong immunity with limited survival benefit.Human vaccines & immunotherapeutics · 2026Article
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- Flagellin as a Versatile Adjuvant Platform: Genetic Fusion Approaches for Next-Generation Vaccines.International journal of molecular sciences · 2025Review
- Multi-epitope HA Vaccine Confers Cross-protective Immunity to H5N8 and H9N2.Archives of Razi Institute · 2025Article
- A Model H5N2 Vaccine Strain for Dual Protection Against H5N1 and H9N2 Avian Influenza Viruses.Vaccines · 2024Article
- Article
- Chitosan-LeoA-DNA Nanoparticles Promoted the Efficacy of Novel LeoA-DNA Vaccination on Mice Against Helicobacter pylori.Current microbiology · 2024Article
- Advances in protein subunit vaccines against H1N1/09 influenza.Frontiers in immunology · 2024Review
- Nanoparticles Carrying Conserved Regions of Influenza A Hemagglutinin, Nucleoprotein, and M2 Protein Elicit a Strong Humoral and T Cell Immune Response and Protect Animals from Infection.Molecules (Basel, Switzerland) · 2023Article
- Sustained delivery of CpG oligodeoxynucleotide by acetalated dextran microparticles augments effector response to Computationally Optimized Broadly Reactive Antigen (COBRA) influenza hemagglutinin.International journal of pharmaceutics · 2023Article
- Flagellin-Fused Protein Targeting M2e and HA2 Induces Innate and T-Cell Responses in Mice of Different Genetic Lines.Vaccines · 2022Article
- Thermostable H1 hemagglutinin stem with M2e epitopes provides broad cross-protection against group1 and 2 influenza A viruses.Molecular therapy. Methods & clinical development · 2022Article
- Review
- Development and characterization of influenza M2 ectodomain and/or hemagglutinin stalk-based dendritic cell-targeting vaccines.Frontiers in microbiology · 2022Article
- Influenza Chimeric Protein (3M2e-3HA2-NP) Adjuvanted with PGA/Alum Confers Cross-Protection against Heterologous Influenza A Viruses.Journal of microbiology and biotechnology · 2021Article
- Combinatorial liposomal peptide vaccine induces IgA and confers protection against influenza virus and bacterial super-infection.Clinical & translational immunology · 2021Article
- Immunogenicity and Protective Potential of Mucosal Vaccine Formulations Based on Conserved Epitopes of Influenza A Viruses Fused to an Innovative Ring Nanoplatform in Mice and Chickens.Frontiers in immunology · 2021Article
- Article
- Designing a chimeric subunit vaccine for influenza virus, based on HA2, M2e and CTxB: a bioinformatics study.BMC molecular and cell biology · 2020Article
- Multi-Epitope Peptide-Based and Vaccinia-Based Universal Influenza Vaccine Candidates Subjected to Clinical Trials.The Malaysian journal of medical sciences : MJMS · 2020Review
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInfluenza infection could be more effectively controlled if a multi-purpose vaccine with the ability to induce responses against most, or all, influenza A subtypes could be generated. Conserved viral proteins are a promising basis for the creation of a broadly protective vaccine. In the present study, the immunogenicity and protective properties of three recombinant proteins (vaccine candidates), comprising conserved viral proteins fused with bacterial flagellin, were compared.
methodsBalb/c mice were immunized intranasally with recombinant proteins comprising either one viral protein (the ectodomain of the M2 protein, 'M2e') or two viral proteins (M2e and the hemagglutinin second subunit 'HA2' epitope) genetically fused with flagellin. Further, two different consensus variants of HA2 were used. Therefore, three experimental positives were used in addition to the negative control (Flg-his). The mucosal, humoral, and T-cell immune responses to these constructs were evaluated.
resultWe have demonstrated that insertion of the HA2 consensus polypeptide (aa 76-130), derived from either the first (HA2-1) or second (HA2-2) virus phylogenetic group, into the recombinant Flg4M2e protein significantly enhanced its immunogenicity and protective properties. Intranasal administration of the vaccine candidates (Flg-HA2-2-4M2e or Flg-HA2-1-4M2e) induced considerable mucosal and systemic responses directed at both the M2e-protein and, in general, the influenza A virus. However, the immune response elicited by the Flg-HA2-1-4M2e protein was weaker than the one generated by Flg-HA2-2-4M2e. These recombinant proteins containing both viral peptides provide complete protection from lethal challenge with various influenza viruses: A/H3N2; A/H2N2; and A/H5N1.
conclusionThis study demonstrates that the intranasal administration of Flg-HA2-2-4M2e recombinant protein induces a strong immune response which provides broad protection against various influenza viruses. This construct is therefore a strong candidate for development as a universal vaccine.
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