Cold-adapted X-31 live attenuated 2009 pandemic H1N1 influenza vaccine elicits protective immune responses in mice and ferrets. 2013

Yo Han Jang, and Young Ho Byun, and Dong-Hun Lee, and Kwang-Hee Lee, and Yoon Jae Lee, and Yun Ha Lee, and Jae-Keun Park, and Chang-Seon Song, and Baik Lin Seong
Laboratory of Molecular Medicine, Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea.

The 2009 pandemic influenza H1N1 (pdmH1N1) is characterized by rapid transmission among humans and disproportionate infection to children and young adults. Although the pdmH1N1 demonstrated less lethality than initially expected and has now moved into its post-pandemic period, it remains highly possible that through antigenic shift or antigenic drift the pdmH1N1 might re-emerge in the future as a more virulent strain than before, underscoring the need for vaccination prior to an outbreak. Using X-31 ca as a backbone strain, we generated a live attenuated pdmH1N1 vaccine and evaluated its potential as a safe and effective vaccine using mouse and ferret models. Despite an acceptable level of attenuation phenotypes, single dose of immunization with the vaccine efficiently stimulated both systemic and mucosal antibody responses and provided complete protection against lethal challenge with wild type pdmH1N1 virus, even at the lowest immunization dose of 10(3)PFU. The promising results of safety, immunogenicity, and protective efficacy of the vaccine not only contribute to expanding the repertoire of live vaccines as a judicious choice for pandemic H1N1 preparedness, but also suggest the great potential of X-31 ca donor strain to serve as reliable platform for generating diverse live vaccine constructs against seasonal influenza viruses and other pandemic strains.

UI MeSH Term Description Entries
D007252 Influenza Vaccines Vaccines used to prevent infection by viruses in the family ORTHOMYXOVIRIDAE. It includes both killed and attenuated vaccines. The composition of the vaccines is changed each year in response to antigenic shifts and changes in prevalence of influenza virus strains. The flu vaccines may be mono- or multi-valent, which contains one or more ALPHAINFLUENZAVIRUS and BETAINFLUENZAVIRUS strains. Flu Vaccine,Influenzavirus Vaccine,Monovalent Influenza Vaccine,Universal Flu Vaccine,Universal Influenza Vaccine,Flu Vaccines,High-Dose Trivalent Influenza Vaccine,Influenza Vaccine,Influenza Virus Vaccine,Influenza Virus Vaccines,Influenzavirus Vaccines,Intranasal Live-Attenuated Influenza Vaccine,LAIV Vaccine,Monovalent Influenza Vaccines,Quadrivalent Influenza Vaccine,Trivalent Influenza Vaccine,Trivalent Live Attenuated Influenza Vaccine,Universal Flu Vaccines,Universal Influenza Vaccines,Flu Vaccine, Universal,High Dose Trivalent Influenza Vaccine,Influenza Vaccine, Monovalent,Influenza Vaccine, Quadrivalent,Influenza Vaccine, Trivalent,Influenza Vaccine, Universal,Intranasal Live Attenuated Influenza Vaccine,Vaccine, Flu,Vaccine, Influenza,Vaccine, Influenza Virus,Vaccine, Influenzavirus,Vaccine, LAIV,Vaccine, Monovalent Influenza,Vaccine, Quadrivalent Influenza,Vaccine, Trivalent Influenza,Virus Vaccine, Influenza
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D009976 Orthomyxoviridae Infections Virus diseases caused by the ORTHOMYXOVIRIDAE. Orthomyxovirus Infections,Infections, Orthomyxoviridae,Infections, Orthomyxovirus,Swine Influenza,Infection, Orthomyxoviridae,Infection, Orthomyxovirus,Influenza, Swine,Orthomyxoviridae Infection,Orthomyxovirus Infection
D003080 Cold Temperature An absence of warmth or heat or a temperature notably below an accustomed norm. Cold,Cold Temperatures,Temperature, Cold,Temperatures, Cold
D004195 Disease Models, Animal Naturally-occurring or experimentally-induced animal diseases with pathological processes analogous to human diseases. Animal Disease Model,Animal Disease Models,Disease Model, Animal
D005260 Female Females
D005289 Ferrets Semidomesticated variety of European polecat much used for hunting RODENTS and/or RABBITS and as a laboratory animal. It is in the subfamily Mustelinae, family MUSTELIDAE. Domestic Polecat,Domestic Polecats,European Polecat,European Polecats,Ferret,Mustela putorius,Mustela putorius furo,Polecat, Domestic,Polecat, European,Polecats, Domestic,Polecats, European
D000220 Adaptation, Biological Changes in biological features that help an organism cope with its ENVIRONMENT. These changes include physiological (ADAPTATION, PHYSIOLOGICAL), phenotypic and genetic changes. Adaptation, Biologic,Biological Adaptation,Biologic Adaptation
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000914 Antibodies, Viral Immunoglobulins produced in response to VIRAL ANTIGENS. Viral Antibodies

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