Cowpea mosaic virus chimeric particles bearing ectodomain of matrix protein 2 (M2E) of influenza A virus: production and characteristics

The epitope presentation system for ectodomain of M2-protein of influenza A virus (M2e) based on Cowpea Mosaic Virus (CPMV) was constructed for expression in plants Vigna unguiculata. CPMV is widely used as a vector for production of immunogenic chimeric virus particles (CVPs) bearing epitopes of di...

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Bibliographic Details
Published in:	Molekuliarnaia biologiia Vol. 43; no. 4; p. 741
Main Authors:	Meshcheriakova, Iu A, El'darov, M A, Migunov, A I, Stepanova, L A, Repko, I A, Kiselev, O I, Lomonosov, D P, Skriabin, K G
Format:	Journal Article
Language:	Russian
Published:	Russia (Federation) 01-07-2009
Subjects:	Animals Antibodies, Viral - immunology Comovirus - genetics Comovirus - immunology Epitopes - genetics Epitopes - immunology Epitopes - metabolism Fabaceae - genetics Fabaceae - immunology Fabaceae - metabolism Fabaceae - virology Humans Immunization Immunoglobulin G - immunology Influenza A Virus, H1N1 Subtype - genetics Influenza A Virus, H1N1 Subtype - immunology Influenza Vaccines - biosynthesis Influenza Vaccines - genetics Influenza Vaccines - immunology Mice Recombinant Fusion Proteins - biosynthesis Recombinant Fusion Proteins - genetics Recombinant Fusion Proteins - immunology Viral Matrix Proteins - biosynthesis Viral Matrix Proteins - genetics Viral Matrix Proteins - immunology
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Summary:	The epitope presentation system for ectodomain of M2-protein of influenza A virus (M2e) based on Cowpea Mosaic Virus (CPMV) was constructed for expression in plants Vigna unguiculata. CPMV is widely used as a vector for production of immunogenic chimeric virus particles (CVPs) bearing epitopes of different infectious human and animal pathogens. To produce chimeric CPMV virus particles in plants, two binary vectors were constructed bearing modified gene coding for S-coat protein of CPMV with insertions of M2e epitopes of human influenza and bird influenza viruses. Antigenic and immunogenic properties of CVPs obtained were investigated in mice immunization experiments and it was shown that they can induce anti-M2e IgG production and partial protection mice against challenge with low doses of flu virus. However, low infectivity and immunogenicity of CPMV chimeric particles indicate the need for further optimization of plant virus-based systems for M2e-epitopes presentation to use plants as a possible source of flu vaccines.
ISSN:	0026-8984