Cited by 42Influenza Virus Research StudiesVirology and Viral DiseasesViral Infections and Outbreaks Research

Induction of cytotoxic T‐lymphocyte and antibody responses against highly pathogenic avian influenza virus infection in mice by inoculation of apathogenic H5N1 influenza virus particles inactivated with formalin

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Sawai, Toshihiro, Itoh, Yasushi, Ozaki, Hiroichi, Isoda, Norikazu, Okamoto, Kiyoko, Kashima, Yoshitaka, Kawaoka, Yoshihiro, Takeuchi, Yoshihiro +2 more·2008·Immunology

Abstract

Summary: We investigated whether a vaccine derived from an apathogenic reassortant type A H5N1 influenza strain could induce immune responses in vivo that mediated protection from highly pathogenic avian influenza virus infection in mice. After two subcutaneous immunizations with formalin‐inactivated H5N1 whole virus particles (whole particle vaccine), significant killing specific for cells presenting a nucleoprotein peptide from the vaccine strain of the virus was observed. Similar vaccination with viruses treated with ether and formalin, which are commonly used for humans as ether‐split vaccines, induced little or no cytotoxic T‐cell response. Furthermore, whole particle vaccines of the apathogenic H5N1 strain were more effective than ether‐split vaccines at inducing antibody production able to neutralize a highly pathogenic H5N1 strain. Finally, whole particle vaccines of H5N1 protected mice against infection by an H5N1 highly pathogenic avian influenza virus more effectively than did ether‐split vaccines. These results suggest that formalin‐inactivated virus particles of apathogenic strains are effective for induction of both cytotoxic T‐lymphocyte and antibody responses against highly pathogenic avian influenza viruses in vivo, resulting in protection from infection by a highly pathogenic H5N1 virus.

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Crossref · 10.1111/j.1365-2567.2007.02745.x

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  • In vivo experiment showed garlic extract has antiviral activity and garlic showed protective activity against influenza viruses by improving the production of neutralizing antibodies when given to mice, based on the presence of ajoene, allicin, allyl methyl thiosulfinate, and methyl allyl thiosulfinate.

    “Interestingly, in vivo experiment exhibited the antiviral activity of garlic extract and they reported that garlic showed protective activity against influenza viruses by improving the production of neutralizing antibodies when given to mice and this activity was based on the presence of several phytochemicals namely, ajoene, allicin, allyl methyl thiosulfinate, and methyl allyl thiosulfinate [64]”

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Authors
Sawai, T., Itoh, Y., Ozaki, H., Isoda, N., Okamoto, K., Kashima, Y., Kawaoka, Y., Takeuchi, Y., Kida, H., & Ogasawara, K.
Affiliations
  • Shiga University of Medical Science (JP)
  • Hokkaido University (JP)
  • University of Wisconsin–Madison (US)
Corresponding author
Itoh, Yasushi
Venue
Immunology
Publisher
Wiley
Published
2008-01-16
Volume
124
Issue
2
Pages
155-165
ISSN
  • 0019-2805 (ISSN-L)
  • 1365-2567
OpenAlex
W2061277189
Cited by
42
References
40
Citations by year
2026: 1 · 2025: 6 · 2023: 1 · 2022: 1 · 2021: 7 · 2020: 3 · 2019: 1 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 1 · 2013: 2 · 2012: 2
FWCI
2.97
Type
journal article
Language
en
Open access
Locations
  • Immunology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
  • Health Sciences › Medicine › Infectious Diseases › Viral Infections and Outbreaks Research
Keywords
H5N1 influenza virus, avian influenza vaccine, cytotoxic T lymphocytes, antibody response, cross-protective immunity, neutralizing antibodies
MeSH terms
Adjuvants, Immunologic, Animals, Antibodies, Viral, Antibody Specificity, Cytotoxicity, Immunologic, Formaldehyde, Freund's Adjuvant, Immunoglobulin G, Influenza Vaccines, Mice, Inbred C57BL, Orthomyxoviridae Infections, T-Lymphocytes, Cytotoxic, Virus Replication, Vaccines, Inactivated, Interferon-alpha, Mice, Influenza A Virus, H5N1 Subtype

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