title: Cross-reactivity of immunoglobulin A secreted on the nasal mucosa in mice nasally inoculated with inactivated H1N1 influenza A viruses in the presence of D-octaarginine-linked polymers.
abstract: We evaluated cross-reactivity of immunoglobulin A (IgA) secreted on the nasal mucosa in mice that were nasally inoculated 4 times with a mixture of inactivated H1N1 influenza A viruses and poly(N-vinylacetamide-co-acrylic acid) (PNVA-co-AA) bearing d-octaarginine at 7-day intervals. Three viral strains (A/Puerto Rico/8/34, A/New Caledonia/20/99 IVR116, and A/Solomon Islands/03/2006) and D-octaarginine-linked polymers with different molecular weights were used as antigens and their carriers, respectively. Secretion of intranasal IgA was barely observed when the inactivated virus alone was administered. The polymer induced the production of intranasal IgA specific to the inoculated viruses, irrespective of the viral strain and molecular weight of the polymer. The respective antibodies cross-reacted to recombinant hemagglutinin proteins of not only the viral strain used for immunization but also other H1N1 strains, including A/Puerto Rico/8/34 strain whose hemagglutinin proteins are diverse from those of other strains. Mice with high reactivity of IgA to the inoculated viruses tended to acquire clear cross-reactivity to other viral strains. Notably, IgA induced by inactivated H1N1 A/New Caledonia/20/99 IVR116 strain with the strongest immunogenicity between 3 antigens in the presence of the polymer cross-reacted to recombinant hemagglutinin proteins of the A/Brisbane/10/2007 and A/Viet Nam/1194/2004 strains, which are categorized into H3N2 and H5N1, respectively. Our polymer is a potential candidate for an efficient antigen carrier that induces mucosal IgA having cross-reactivity to antigenically drifted variants, irrespective of the subtype of viral strains.
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan. Electronic address: sakuma@pharm.setsunan.ac.jp.
authors.forename: Shinji
authors.initials: S
authors.lastname: Sakuma
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan; Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Morimoto
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Nishida
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Murakami
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
authors.forename: Tomomi
authors.initials: T
authors.lastname: Egawa
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
authors.forename: Rikito
authors.initials: R
authors.lastname: Endo
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
authors.forename: Makoto
authors.initials: M
authors.lastname: Kataoka
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
authors.forename: Shinji
authors.initials: S
authors.lastname: Yamashita
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan; Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan.
authors.forename: Kohei
authors.initials: K
authors.lastname: Miyata
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka, Japan.
authors.forename: Kohta
authors.initials: K
authors.lastname: Mohri
authors.affiliation: Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan.
authors.forename: Kyohei
authors.initials: K
authors.lastname: Ochiai
authors.affiliation: Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan.
authors.forename: Ken-Ichiro
authors.initials: K
authors.lastname: Hiwatari
authors.affiliation: Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan.
authors.forename: Seiji
authors.initials: S
authors.lastname: Koike
authors.affiliation: Life Science Materials Laboratory, ADEKA Co., Arakawa-ku, Tokyo, Japan.
authors.forename: Etsuo
authors.initials: E
authors.lastname: Tobita
authors.affiliation: Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan.
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Uto
authors.affiliation: Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan. Electronic address: m-baba@m2.kufm.kagoshima-u.ac.jp.
authors.forename: Masanori
authors.initials: M
authors.lastname: Baba
mesh_terms: D000081:Acetamides / Q000737:chemistry; D000179:Acrylates / Q000737:chemistry; D000818:Animals; D000941:Antigens / Q000276:immunology; D003429:Cross Reactions; D005260:Female; D007070:Immunoglobulin A / Q000276:immunology*; D053118:Influenza A Virus, H1N1 Subtype / Q000276:immunology*; D053122:Influenza A Virus, H3N2 Subtype / Q000276:immunology; D053124:Influenza A Virus, H5N1 Subtype / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C; D008970:Molecular Weight; D009297:Nasal Mucosa / Q000276:immunology* / Q000821:virology; D009842:Oligopeptides / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry; D011145:Polyvinyls / Q000737:chemistry
chemical_list: D000081:Acetamides; D000179:Acrylates; D000941:Antigens; D007070:Immunoglobulin A; D009842:Oligopeptides; D011108:Polymers; D011145:Polyvinyls; C448619:octaarginine; C539745:poly(N-vinylacetamide); C036658:acrylic acid
keywords: Cell-penetrating peptide; Cross-reactivity; Mucosal vaccination; Oligoarginine; Secreted IgA; d-Octaarginine-linked polymer