Microneedle Patch Delivery to the Skin of Virus-like Particles Containing Heterologous M2e Extracellular Domains of Influenza Virus Induces Broad Heterosubtypic Cross-protection
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A broadly cross-protective influenza vaccine that can be administrated by a painless self-immunization method would be a value as a potential universal mass vaccination strategy. This study developed a minimally-invasive microneedle (MN) patch for skin vaccination with virus-like particles containing influenza virus heterologous M2 extracellular (M2e) domains (M2e5x VLPs) as a universal vaccine candidate without adjuvants. The stability of M2e5x VLP-coated microneedles was maintained for 8weeks at room temperature without losing M2e antigenicity and immunogenicity. MN skin immunization induced strong humoral and mucosal M2e antibody responses and conferred cross-protection against heterosubtypic H1N1, H3N2, and H5N1 influenza virus challenges. In addition, M2e5x VLP MN skin vaccination induced T-helper type 1 responses such as IgG2a isotype antibodies and IFN-γ producing cells at higher levels than those by conventional intramuscular injection. These potential immunological and logistic advantages for skin delivery of M2e5x VLP MN vaccines could offer a promising approach to develop an easy-to-administer universal influenza vaccine.
Gomes K, Vijayanand S, Bagwe P, Menon I, Kale A, Patil S Int J Mol Sci. 2023; 24(13).
PMID: 37445784 PMC: 10341628. DOI: 10.3390/ijms241310612.
Gomes K, Menon I, Bagwe P, Bajaj L, Kang S, DSouza M Viruses. 2022; 14(9).
PMID: 36146733 PMC: 9506217. DOI: 10.3390/v14091920.
Progress towards the Development of a Universal Influenza Vaccine.
Wang W, Sayedahmed E, Sambhara S, Mittal S Viruses. 2022; 14(8).
PMID: 36016306 PMC: 9415875. DOI: 10.3390/v14081684.
Recent Progress in Recombinant Influenza Vaccine Development Toward Heterosubtypic Immune Response.
Carascal M, Pavon R, Rivera W Front Immunol. 2022; 13:878943.
PMID: 35663997 PMC: 9162156. DOI: 10.3389/fimmu.2022.878943.
Braz Gomes K, DSa S, Lovia Allotey-Babington G, Kang S, DSouza M Vaccines (Basel). 2021; 9(11).
PMID: 34835255 PMC: 8619166. DOI: 10.3390/vaccines9111324.