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Published in: Virology Journal 1/2010

Open Access 01-12-2010 | Research

A single dose of DNA vaccine based on conserved H5N1 subtype proteins provides protection against lethal H5N1 challenge in mice pre-exposed to H1N1 influenza virus

Authors: Haiyan Chang, Chaoyang Huang, Jian Wu, Fang Fang, Wenjie Zhang, Fuyan Wang, Ze Chen

Published in: Virology Journal | Issue 1/2010

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Abstract

Background

Highly pathogenic avian influenza virus subtype H5N1 infects humans with a high fatality rate and has pandemic potential. Vaccination is the preferred approach for prevention of H5N1 infection. Seasonal influenza virus infection has been reported to provide heterosubtypic immunity against influenza A virus infection to some extend. In this study, we used a mouse model pre-exposed to an H1N1 influenza virus and evaluated the protective ability provided by a single dose of DNA vaccines encoding conserved H5N1 proteins.

Results

SPF BALB/c mice were intranasally infected with A/PR8 (H1N1) virus beforehand. Six weeks later, the mice were immunized with plasmid DNA expressing H5N1 virus NP or M1, or with combination of the two plasmids. Both serum specific Ab titers and IFN-γ secretion by spleen cells in vitro were determined. Six weeks after the vaccination, the mice were challenged with a lethal dose of H5N1 influenza virus. The protective efficacy was judged by survival rate, body weight loss and residue virus titer in lungs after the challenge. The results showed that pre-exposure to H1N1 virus could offer mice partial protection against lethal H5N1 challenge and that single-dose injection with NP DNA or NP + M1 DNAs provided significantly improved protection against lethal H5N1 challenge in mice pre-exposed to H1N1 virus, as compared with those in unexposed mice.

Conclusions

Pre-existing immunity against seasonal influenza viruses is useful in offering protection against H5N1 infection. DNA vaccination may be a quick and effective strategy for persons innaive to influenza A virus during H5N1 pandemic.
Appendix
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Literature
1.
go back to reference Tam JS: Influenza A (H5N1) in Hong Kong: an overview. Vaccine 2002,20(Suppl 2):S77-81. 10.1016/S0264-410X(02)00137-8PubMedCrossRef Tam JS: Influenza A (H5N1) in Hong Kong: an overview. Vaccine 2002,20(Suppl 2):S77-81. 10.1016/S0264-410X(02)00137-8PubMedCrossRef
3.
go back to reference Cinatl J Jr, Michaelis M, Doerr HW: The threat of avian influenza A (H5N1). Part I: Epidemiologic concerns and virulence determinants. Med Microbiol Immunol 2007, 196: 181-190. 10.1007/s00430-007-0042-5PubMedCrossRef Cinatl J Jr, Michaelis M, Doerr HW: The threat of avian influenza A (H5N1). Part I: Epidemiologic concerns and virulence determinants. Med Microbiol Immunol 2007, 196: 181-190. 10.1007/s00430-007-0042-5PubMedCrossRef
5.
go back to reference van Maurik A, Sabarth N, Dacho HS, Bruhl P, Schwendinger M, Crowe BA, Noel Barrett P, Kistner O, Keith Howard M: Seasonal influenza vaccine elicits heterosubtypic immunity against H5N1 that can be further boosted by H5N1 vaccination. Vaccine 28: 1778-1785. 10.1016/j.vaccine.2009.12.008 van Maurik A, Sabarth N, Dacho HS, Bruhl P, Schwendinger M, Crowe BA, Noel Barrett P, Kistner O, Keith Howard M: Seasonal influenza vaccine elicits heterosubtypic immunity against H5N1 that can be further boosted by H5N1 vaccination. Vaccine 28: 1778-1785. 10.1016/j.vaccine.2009.12.008
6.
go back to reference Lee LY, Ha do LA, Simmons C, de Jong MD, Chau NV, Schumacher R, Peng YC, McMichael AJ, Farrar JJ, Smith GL, et al.: Memory T cells established by seasonal human influenza A infection cross-react with avian influenza A (H5N1) in healthy individuals. J Clin Invest 2008, 118: 3478-3490.PubMedPubMedCentral Lee LY, Ha do LA, Simmons C, de Jong MD, Chau NV, Schumacher R, Peng YC, McMichael AJ, Farrar JJ, Smith GL, et al.: Memory T cells established by seasonal human influenza A infection cross-react with avian influenza A (H5N1) in healthy individuals. J Clin Invest 2008, 118: 3478-3490.PubMedPubMedCentral
7.
go back to reference Jameson J, Cruz J, Terajima M, Ennis FA: Human CD8+ and CD4+ T lymphocyte memory to influenza A viruses of swine and avian species. J Immunol 1999, 162: 7578-7583.PubMed Jameson J, Cruz J, Terajima M, Ennis FA: Human CD8+ and CD4+ T lymphocyte memory to influenza A viruses of swine and avian species. J Immunol 1999, 162: 7578-7583.PubMed
8.
go back to reference Kreijtz JH, de Mutsert G, van Baalen CA, Fouchier RA, Osterhaus AD, Rimmelzwaan GF: Cross-recognition of avian H5N1 influenza virus by human cytotoxic T-lymphocyte populations directed to human influenza A virus. J Virol 2008, 82: 5161-5166. 10.1128/JVI.02694-07PubMedPubMedCentralCrossRef Kreijtz JH, de Mutsert G, van Baalen CA, Fouchier RA, Osterhaus AD, Rimmelzwaan GF: Cross-recognition of avian H5N1 influenza virus by human cytotoxic T-lymphocyte populations directed to human influenza A virus. J Virol 2008, 82: 5161-5166. 10.1128/JVI.02694-07PubMedPubMedCentralCrossRef
9.
go back to reference Chen Q, Kuang H, Wang H, Fang F, Yang Z, Zhang Z, Zhang X, Chen Z: Comparing the ability of a series of viral protein-expressing plasmid DNAs to protect against H5N1 influenza virus. Virus Genes 2009, 38: 30-38. 10.1007/s11262-008-0305-2PubMedCrossRef Chen Q, Kuang H, Wang H, Fang F, Yang Z, Zhang Z, Zhang X, Chen Z: Comparing the ability of a series of viral protein-expressing plasmid DNAs to protect against H5N1 influenza virus. Virus Genes 2009, 38: 30-38. 10.1007/s11262-008-0305-2PubMedCrossRef
10.
go back to reference Laddy DJ, Yan J, Kutzler M, Kobasa D, Kobinger GP, Khan AS, Greenhouse J, Sardesai NY, Draghia-Akli R, Weiner DB: Heterosubtypic protection against pathogenic human and avian influenza viruses via in vivo electroporation of synthetic consensus DNA antigens. PLoS One 2008, 3: e2517. 10.1371/journal.pone.0002517PubMedPubMedCentralCrossRef Laddy DJ, Yan J, Kutzler M, Kobasa D, Kobinger GP, Khan AS, Greenhouse J, Sardesai NY, Draghia-Akli R, Weiner DB: Heterosubtypic protection against pathogenic human and avian influenza viruses via in vivo electroporation of synthetic consensus DNA antigens. PLoS One 2008, 3: e2517. 10.1371/journal.pone.0002517PubMedPubMedCentralCrossRef
11.
go back to reference Chen Y, Qin K, Wu WL, Li G, Zhang J, Du H, Ng MH, Shih JW, Peiris JS, Guan Y, et al.: Broad cross-protection against H5N1 avian influenza virus infection by means of monoclonal antibodies that map to conserved viral epitopes. J Infect Dis 2009, 199: 49-58. 10.1086/594374PubMedCrossRef Chen Y, Qin K, Wu WL, Li G, Zhang J, Du H, Ng MH, Shih JW, Peiris JS, Guan Y, et al.: Broad cross-protection against H5N1 avian influenza virus infection by means of monoclonal antibodies that map to conserved viral epitopes. J Infect Dis 2009, 199: 49-58. 10.1086/594374PubMedCrossRef
12.
go back to reference Adar Y, Singer Y, Levi R, Tzehoval E, Perk S, Banet-Noach C, Nagar S, Arnon R, Ben-Yedidia T: A universal epitope-based influenza vaccine and its efficacy against H5N1. Vaccine 2009, 27: 2099-2107. 10.1016/j.vaccine.2009.02.011PubMedCrossRef Adar Y, Singer Y, Levi R, Tzehoval E, Perk S, Banet-Noach C, Nagar S, Arnon R, Ben-Yedidia T: A universal epitope-based influenza vaccine and its efficacy against H5N1. Vaccine 2009, 27: 2099-2107. 10.1016/j.vaccine.2009.02.011PubMedCrossRef
13.
go back to reference Sui Z, Chen Q, Wu R, Zhang H, Zheng M, Wang H, Chen Z: Cross-protection against influenza virus infection by intranasal administration of M2-based vaccine with chitosan as an adjuvant. Arch Virol 2010, 155: 535-544. 10.1007/s00705-010-0621-4PubMedCrossRef Sui Z, Chen Q, Wu R, Zhang H, Zheng M, Wang H, Chen Z: Cross-protection against influenza virus infection by intranasal administration of M2-based vaccine with chitosan as an adjuvant. Arch Virol 2010, 155: 535-544. 10.1007/s00705-010-0621-4PubMedCrossRef
14.
go back to reference Kreijtz JH, Bodewes R, van den Brand JM, de Mutsert G, Baas C, van Amerongen G, Fouchier RA, Osterhaus AD, Rimmelzwaan GF: Infection of mice with a human influenza A/H3N2 virus induces protective immunity against lethal infection with influenza A/H5N1 virus. Vaccine 2009, 27: 4983-4989. 10.1016/j.vaccine.2009.05.079PubMedCrossRef Kreijtz JH, Bodewes R, van den Brand JM, de Mutsert G, Baas C, van Amerongen G, Fouchier RA, Osterhaus AD, Rimmelzwaan GF: Infection of mice with a human influenza A/H3N2 virus induces protective immunity against lethal infection with influenza A/H5N1 virus. Vaccine 2009, 27: 4983-4989. 10.1016/j.vaccine.2009.05.079PubMedCrossRef
15.
go back to reference Tao P, Luo M, Pan R, Ling D, Zhou S, Tien P, Pan Z: Enhanced protective immunity against H5N1 influenza virus challenge by vaccination with DNA expressing a chimeric hemagglutinin in combination with an MHC class I-restricted epitope of nucleoprotein in mice. Antiviral Res 2009, 81: 253-260. 10.1016/j.antiviral.2008.12.009PubMedCrossRef Tao P, Luo M, Pan R, Ling D, Zhou S, Tien P, Pan Z: Enhanced protective immunity against H5N1 influenza virus challenge by vaccination with DNA expressing a chimeric hemagglutinin in combination with an MHC class I-restricted epitope of nucleoprotein in mice. Antiviral Res 2009, 81: 253-260. 10.1016/j.antiviral.2008.12.009PubMedCrossRef
16.
go back to reference Vajo Z, Wood J, Kosa L, Szilvasy I, Paragh G, Pauliny Z, Bartha K, Visontay I, Kis A, Jankovics I: A single-dose influenza A (H5N1) vaccine safe and immunogenic in adult and elderly patients: an approach to pandemic vaccine development. J Virol 2010, 84: 1237-1242. 10.1128/JVI.01894-09PubMedPubMedCentralCrossRef Vajo Z, Wood J, Kosa L, Szilvasy I, Paragh G, Pauliny Z, Bartha K, Visontay I, Kis A, Jankovics I: A single-dose influenza A (H5N1) vaccine safe and immunogenic in adult and elderly patients: an approach to pandemic vaccine development. J Virol 2010, 84: 1237-1242. 10.1128/JVI.01894-09PubMedPubMedCentralCrossRef
17.
go back to reference Ikeno D, Kimachi K, Kino Y, Harada S, Yoshida K, Tochihara S, Itamura S, Odagiri T, Tashiro M, Okada K, et al.: Immunogenicity of an inactivated adjuvanted whole-virion influenza A (H5N1, NIBRG-14) vaccine administered by intramuscular or subcutaneous injection. Microbiol Immunol 2010, 54: 81-88. 10.1111/j.1348-0421.2009.00191.xPubMedCrossRef Ikeno D, Kimachi K, Kino Y, Harada S, Yoshida K, Tochihara S, Itamura S, Odagiri T, Tashiro M, Okada K, et al.: Immunogenicity of an inactivated adjuvanted whole-virion influenza A (H5N1, NIBRG-14) vaccine administered by intramuscular or subcutaneous injection. Microbiol Immunol 2010, 54: 81-88. 10.1111/j.1348-0421.2009.00191.xPubMedCrossRef
18.
go back to reference Bresson JL, Perronne C, Launay O, Gerdil C, Saville M, Wood J, Hoschler K, Zambon MC: Safety and immunogenicity of an inactivated split-virion influenza A/Vietnam/1194/2004 (H5N1) vaccine: phase I randomised trial. Lancet 2006, 367: 1657-1664. 10.1016/S0140-6736(06)68656-XPubMedCrossRef Bresson JL, Perronne C, Launay O, Gerdil C, Saville M, Wood J, Hoschler K, Zambon MC: Safety and immunogenicity of an inactivated split-virion influenza A/Vietnam/1194/2004 (H5N1) vaccine: phase I randomised trial. Lancet 2006, 367: 1657-1664. 10.1016/S0140-6736(06)68656-XPubMedCrossRef
19.
go back to reference Nolan T, Richmond PC, Formica NT, Hoschler K, Skeljo MV, Stoney T, McVernon J, Hartel G, Sawlwin DC, Bennet J, et al.: Safety and immunogenicity of a prototype adjuvanted inactivated split-virus influenza A (H5N1) vaccine in infants and children. Vaccine 2008, 26: 6383-6391. 10.1016/j.vaccine.2008.08.046PubMedCrossRef Nolan T, Richmond PC, Formica NT, Hoschler K, Skeljo MV, Stoney T, McVernon J, Hartel G, Sawlwin DC, Bennet J, et al.: Safety and immunogenicity of a prototype adjuvanted inactivated split-virus influenza A (H5N1) vaccine in infants and children. Vaccine 2008, 26: 6383-6391. 10.1016/j.vaccine.2008.08.046PubMedCrossRef
20.
go back to reference Treanor JJ, Campbell JD, Zangwill KM, Rowe T, Wolff M: Safety and immunogenicity of an inactivated subvirion influenza A (H5N1) vaccine. N Engl J Med 2006, 354: 1343-1351. 10.1056/NEJMoa055778PubMedCrossRef Treanor JJ, Campbell JD, Zangwill KM, Rowe T, Wolff M: Safety and immunogenicity of an inactivated subvirion influenza A (H5N1) vaccine. N Engl J Med 2006, 354: 1343-1351. 10.1056/NEJMoa055778PubMedCrossRef
21.
go back to reference Stephenson I, Nicholson KG, Colegate A, Podda A, Wood J, Ypma E, Zambon M: Boosting immunity to influenza H5N1 with MF59-adjuvanted H5N3 A/Duck/Singapore/97 vaccine in a primed human population. Vaccine 2003, 21: 1687-1693. 10.1016/S0264-410X(02)00632-1PubMedCrossRef Stephenson I, Nicholson KG, Colegate A, Podda A, Wood J, Ypma E, Zambon M: Boosting immunity to influenza H5N1 with MF59-adjuvanted H5N3 A/Duck/Singapore/97 vaccine in a primed human population. Vaccine 2003, 21: 1687-1693. 10.1016/S0264-410X(02)00632-1PubMedCrossRef
22.
go back to reference Hehme N, Engelmann H, Kuenzel W, Neumeier E, Saenger R: Immunogenicity of a monovalent, aluminum-adjuvanted influenza whole virus vaccine for pandemic use. Virus Res 2004, 103: 163-171. 10.1016/j.virusres.2004.02.029PubMedCrossRef Hehme N, Engelmann H, Kuenzel W, Neumeier E, Saenger R: Immunogenicity of a monovalent, aluminum-adjuvanted influenza whole virus vaccine for pandemic use. Virus Res 2004, 103: 163-171. 10.1016/j.virusres.2004.02.029PubMedCrossRef
23.
go back to reference Epstein SL, Tumpey TM, Misplon JA, Lo CY, Cooper LA, Subbarao K, Renshaw M, Sambhara S, Katz JM: DNA vaccine expressing conserved influenza virus proteins protective against H5N1 challenge infection in mice. Emerg Infect Dis 2002, 8: 796-801.PubMedPubMedCentralCrossRef Epstein SL, Tumpey TM, Misplon JA, Lo CY, Cooper LA, Subbarao K, Renshaw M, Sambhara S, Katz JM: DNA vaccine expressing conserved influenza virus proteins protective against H5N1 challenge infection in mice. Emerg Infect Dis 2002, 8: 796-801.PubMedPubMedCentralCrossRef
24.
go back to reference Chen Z, Sahashi Y, Matsuo K, Asanuma H, Takahashi H, Iwasaki T, Suzuki Y, Aizawa C, Kurata T, Tamura S: Comparison of the ability of viral protein-expressing plasmid DNAs to protect against influenza. Vaccine 1998, 16: 1544-1549. 10.1016/S0264-410X(98)00043-7PubMedCrossRef Chen Z, Sahashi Y, Matsuo K, Asanuma H, Takahashi H, Iwasaki T, Suzuki Y, Aizawa C, Kurata T, Tamura S: Comparison of the ability of viral protein-expressing plasmid DNAs to protect against influenza. Vaccine 1998, 16: 1544-1549. 10.1016/S0264-410X(98)00043-7PubMedCrossRef
25.
go back to reference Qiu M, Fang F, Chen Y, Wang H, Chen Q, Chang H, Wang F, Zhang R, Chen Z: Protection against avian influenza H9N2 virus challenge by immunization with hemagglutinin- or neuraminidase-expressing DNA in BALB/c mice. Biochem Biophys Res Commun 2006, 343: 1124-1131. 10.1016/j.bbrc.2006.03.088PubMedCrossRef Qiu M, Fang F, Chen Y, Wang H, Chen Q, Chang H, Wang F, Zhang R, Chen Z: Protection against avian influenza H9N2 virus challenge by immunization with hemagglutinin- or neuraminidase-expressing DNA in BALB/c mice. Biochem Biophys Res Commun 2006, 343: 1124-1131. 10.1016/j.bbrc.2006.03.088PubMedCrossRef
26.
go back to reference Chen Z, Kadowaki S, Hagiwara Y, Yoshikawa T, Matsuo K, Kurata T, Tamura S: Cross-protection against a lethal influenza virus infection by DNA vaccine to neuraminidase. Vaccine 2000, 18: 3214-3222. 10.1016/S0264-410X(00)00149-3PubMedCrossRef Chen Z, Kadowaki S, Hagiwara Y, Yoshikawa T, Matsuo K, Kurata T, Tamura S: Cross-protection against a lethal influenza virus infection by DNA vaccine to neuraminidase. Vaccine 2000, 18: 3214-3222. 10.1016/S0264-410X(00)00149-3PubMedCrossRef
27.
go back to reference Fang F, Cai XQ, Chang HY, Wang HD, Yang ZD, Chen Z: Protection abilities of influenza B virus DNA vaccines expressing hemagglutinin, neuraminidase, or both in mice. Acta Virol 2008, 52: 107-112.PubMed Fang F, Cai XQ, Chang HY, Wang HD, Yang ZD, Chen Z: Protection abilities of influenza B virus DNA vaccines expressing hemagglutinin, neuraminidase, or both in mice. Acta Virol 2008, 52: 107-112.PubMed
28.
go back to reference Chen Z, Yoshikawa T, Kadowaki S, Hagiwara Y, Matsuo K, Asanuma H, Aizawa C, Kurata T, Tamura S: Protection and antibody responses in different strains of mouse immunized with plasmid DNAs encoding influenza virus haemagglutinin, neuraminidase and nucleoprotein. J Gen Virol 1999,80(Pt 10):2559-2564.PubMedCrossRef Chen Z, Yoshikawa T, Kadowaki S, Hagiwara Y, Matsuo K, Asanuma H, Aizawa C, Kurata T, Tamura S: Protection and antibody responses in different strains of mouse immunized with plasmid DNAs encoding influenza virus haemagglutinin, neuraminidase and nucleoprotein. J Gen Virol 1999,80(Pt 10):2559-2564.PubMedCrossRef
29.
go back to reference Epstein SL, Kong WP, Misplon JA, Lo CY, Tumpey TM, Xu L, Nabel GJ: Protection against multiple influenza A subtypes by vaccination with highly conserved nucleoprotein. Vaccine 2005, 23: 5404-5410. 10.1016/j.vaccine.2005.04.047PubMedCrossRef Epstein SL, Kong WP, Misplon JA, Lo CY, Tumpey TM, Xu L, Nabel GJ: Protection against multiple influenza A subtypes by vaccination with highly conserved nucleoprotein. Vaccine 2005, 23: 5404-5410. 10.1016/j.vaccine.2005.04.047PubMedCrossRef
31.
go back to reference Elvidge S: Melanoma vaccine for dogs. Nature biotechnology 2010, 28: 189. 10.1038/nbt0310-189aCrossRef Elvidge S: Melanoma vaccine for dogs. Nature biotechnology 2010, 28: 189. 10.1038/nbt0310-189aCrossRef
32.
go back to reference MacGregor RR, Boyer JD, Ugen KE, Lacy KE, Gluckman SJ, Bagarazzi ML, Chattergoon MA, Baine Y, Higgins TJ, Ciccarelli RB, et al.: First human trial of a DNA-based vaccine for treatment of human immunodeficiency virus type 1 infection: safety and host response. J Infect Dis 1998, 178: 92-100.PubMedCrossRef MacGregor RR, Boyer JD, Ugen KE, Lacy KE, Gluckman SJ, Bagarazzi ML, Chattergoon MA, Baine Y, Higgins TJ, Ciccarelli RB, et al.: First human trial of a DNA-based vaccine for treatment of human immunodeficiency virus type 1 infection: safety and host response. J Infect Dis 1998, 178: 92-100.PubMedCrossRef
33.
go back to reference Smith LR, Wloch MK, Ye M, Reyes LR, Boutsaboualoy S, Dunne CE, Chaplin JA, Rusalov D, Rolland AP, Fisher CL, et al.: Phase 1 clinical trials of the safety and immunogenicity of adjuvanted plasmid DNA vaccines encoding influenza A virus H5 hemagglutinin. Vaccine 2010, 28: 2565-2572. 10.1016/j.vaccine.2010.01.029PubMedCrossRef Smith LR, Wloch MK, Ye M, Reyes LR, Boutsaboualoy S, Dunne CE, Chaplin JA, Rusalov D, Rolland AP, Fisher CL, et al.: Phase 1 clinical trials of the safety and immunogenicity of adjuvanted plasmid DNA vaccines encoding influenza A virus H5 hemagglutinin. Vaccine 2010, 28: 2565-2572. 10.1016/j.vaccine.2010.01.029PubMedCrossRef
34.
go back to reference Le TP, Coonan KM, Hedstrom RC, Charoenvit Y, Sedegah M, Epstein JE, Kumar S, Wang R, Doolan DL, Maguire JD, et al.: Safety, tolerability and humoral immune responses after intramuscular administration of a malaria DNA vaccine to healthy adult volunteers. Vaccine 2000, 18: 1893-1901. 10.1016/S0264-410X(99)00407-7PubMedCrossRef Le TP, Coonan KM, Hedstrom RC, Charoenvit Y, Sedegah M, Epstein JE, Kumar S, Wang R, Doolan DL, Maguire JD, et al.: Safety, tolerability and humoral immune responses after intramuscular administration of a malaria DNA vaccine to healthy adult volunteers. Vaccine 2000, 18: 1893-1901. 10.1016/S0264-410X(99)00407-7PubMedCrossRef
35.
go back to reference Rottinghaus ST, Poland GA, Jacobson RM, Barr LJ, Roy MJ: Hepatitis B DNA vaccine induces protective antibody responses in human non-responders to conventional vaccination. Vaccine 2003, 21: 4604-4608. 10.1016/S0264-410X(03)00447-XPubMedCrossRef Rottinghaus ST, Poland GA, Jacobson RM, Barr LJ, Roy MJ: Hepatitis B DNA vaccine induces protective antibody responses in human non-responders to conventional vaccination. Vaccine 2003, 21: 4604-4608. 10.1016/S0264-410X(03)00447-XPubMedCrossRef
36.
go back to reference Schalk JA, Mooi FR, Berbers GA, van Aerts LA, Ovelgonne H, Kimman TG: Preclinical and clinical safety studies on DNA vaccines. Hum Vaccin 2006, 2: 45-53.PubMedCrossRef Schalk JA, Mooi FR, Berbers GA, van Aerts LA, Ovelgonne H, Kimman TG: Preclinical and clinical safety studies on DNA vaccines. Hum Vaccin 2006, 2: 45-53.PubMedCrossRef
37.
go back to reference Suarez DL: Evolution of avian influenza viruses. Vet Microbiol 2000, 74: 15-27. 10.1016/S0378-1135(00)00161-9PubMedCrossRef Suarez DL: Evolution of avian influenza viruses. Vet Microbiol 2000, 74: 15-27. 10.1016/S0378-1135(00)00161-9PubMedCrossRef
38.
go back to reference Wu J, Zhang F, Fang F, Chang H, Wang F, Yang Z, Sun B, Chen Z: Efficacy of inactivated vaccine against H5N1 influenza virus infection in mice with type 1 diabetes. Vaccine 28: 2775-2781. 10.1016/j.vaccine.2010.01.037 Wu J, Zhang F, Fang F, Chang H, Wang F, Yang Z, Sun B, Chen Z: Efficacy of inactivated vaccine against H5N1 influenza virus infection in mice with type 1 diabetes. Vaccine 28: 2775-2781. 10.1016/j.vaccine.2010.01.037
39.
go back to reference Watabe S, Xin KQ, Ihata A, Liu LJ, Honsho A, Aoki I, Hamajima K, Wahren B, Okuda K: Protection against influenza virus challenge by topical application of influenza DNA vaccine. Vaccine 2001, 19: 4434-4444. 10.1016/S0264-410X(01)00194-3PubMedCrossRef Watabe S, Xin KQ, Ihata A, Liu LJ, Honsho A, Aoki I, Hamajima K, Wahren B, Okuda K: Protection against influenza virus challenge by topical application of influenza DNA vaccine. Vaccine 2001, 19: 4434-4444. 10.1016/S0264-410X(01)00194-3PubMedCrossRef
40.
go back to reference Saha S, Yoshida S, Ohba K, Matsui K, Matsuda T, Takeshita F, Umeda K, Tamura Y, Okuda K, Klinman D, Xin KQ: A fused gene of nucleoprotein (NP) and herpes simplex virus genes (VP22) induces highly protective immunity against different subtypes of influenza virus. Virology 2006, 354: 48-57. 10.1016/j.virol.2006.04.015PubMedCrossRef Saha S, Yoshida S, Ohba K, Matsui K, Matsuda T, Takeshita F, Umeda K, Tamura Y, Okuda K, Klinman D, Xin KQ: A fused gene of nucleoprotein (NP) and herpes simplex virus genes (VP22) induces highly protective immunity against different subtypes of influenza virus. Virology 2006, 354: 48-57. 10.1016/j.virol.2006.04.015PubMedCrossRef
41.
go back to reference Hagiwara Y, Komase K, Chen Z, Matsuo K, Suzuki Y, Aizawa C, Kurata T, Tamura S: Mutants of cholera toxin as an effective and safe adjuvant for nasal influenza vaccine. Vaccine 1999, 17: 2918-2926. 10.1016/S0264-410X(99)00135-8PubMedCrossRef Hagiwara Y, Komase K, Chen Z, Matsuo K, Suzuki Y, Aizawa C, Kurata T, Tamura S: Mutants of cholera toxin as an effective and safe adjuvant for nasal influenza vaccine. Vaccine 1999, 17: 2918-2926. 10.1016/S0264-410X(99)00135-8PubMedCrossRef
Metadata
Title
A single dose of DNA vaccine based on conserved H5N1 subtype proteins provides protection against lethal H5N1 challenge in mice pre-exposed to H1N1 influenza virus
Authors
Haiyan Chang
Chaoyang Huang
Jian Wu
Fang Fang
Wenjie Zhang
Fuyan Wang
Ze Chen
Publication date
01-12-2010
Publisher
BioMed Central
Published in
Virology Journal / Issue 1/2010
Electronic ISSN: 1743-422X
DOI
https://doi.org/10.1186/1743-422X-7-197

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