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Coadministration of Recombinant Adenovirus Expressing GM-CSF with Inactivated H5N1 Avian Influenza Vaccine Increased the Immune Responses and Protective Efficacy Against a Wild Bird Source of H5N1 Challenge. 2017

Xiangwei Wang, and Xinglong Wang, and Yanqing Jia, and Chongyang Wang, and Qiuxia Tang, and Qingsong Han, and Sa Xiao, and Zengqi Yang
Department of Avian Disease, College of Veterinary Medicine, Northwest A&F University , Yangling, People's Republic of China .

Wild birds play a key role in the spread of avian influenza virus (AIV). There is a continual urgent requirement for AIV vaccines to address the ongoing genetic changes of AIV. In the current study, we trialed a novel AIV vaccine against the wild bird source of H5N1 type AIV with recombinant adenovirus expressing granulocyte monocyte colony-stimulating factor (GM-CSF) as an adjuvant. A total of 150-day-old commercial chicks, with AIV-maternal-derived antibody, were divided into 6 groups. The primary vaccination was performed at day 14 followed by a subsequent boosting and intramuscular challenge on day 28 and 42, respectively. Recombinant GM-CSF (rGM-CSF) expressed by adenovirus, named as rAd-GM-CSF, raised the hemagglutination inhibition (HI) titers (log2) against AIV from 7.0 (vaccinate with inactivated vaccine alone) to 8.4 after booster immunization. Moreover, the rGM-CSF addition markedly increased the expression of interferon-γ, interleukin-4, and major histocompatibility complex-II in the lungs, compared with those immunized with inactivated vaccine alone on day 29, that is, 18 h post booster immunization. Following challenge, chicks inoculated with the inactivated AIV vaccine and rAd-GM-CSF together exhibited mild clinical signs and 62% survivals compared to 33% in the group immunized with inactivated AIV vaccine alone. Higher level of HI titers, immune related molecule expressions, and protection ratio demonstrates a good potential of rGM-CSF in improving humoral and cell mediated immune responses of inactivated AIV vaccines.

UI MeSH Term Description Entries
D007117 Immunization, Secondary Any immunization following a primary immunization and involving exposure to the same or a closely related antigen. Immunization, Booster,Revaccination,Secondary Immunization,Booster Immunization,Booster Immunizations,Immunizations, Booster,Immunizations, Secondary,Revaccinations,Secondary Immunizations
D007251 Influenza, Human An acute viral infection in humans involving the respiratory tract. It is marked by inflammation of the NASAL MUCOSA; the PHARYNX; and conjunctiva, and by headache and severe, often generalized, myalgia. Grippe,Human Flu,Human Influenza,Influenza in Humans,Influenza,Flu, Human,Human Influenzas,Influenza in Human,Influenzas,Influenzas, Human
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
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008213 Lymphocyte Activation Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION. Blast Transformation,Blastogenesis,Lymphoblast Transformation,Lymphocyte Stimulation,Lymphocyte Transformation,Transformation, Blast,Transformation, Lymphoblast,Transformation, Lymphocyte,Activation, Lymphocyte,Stimulation, Lymphocyte
D002645 Chickens Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA. Gallus gallus,Gallus domesticus,Gallus gallus domesticus,Chicken
D005585 Influenza in Birds Infection of domestic and wild fowl and other BIRDS with INFLUENZA A VIRUS. Avian influenza usually does not sicken birds, but can be highly pathogenic and fatal in domestic POULTRY. Avian Flu,Avian Influenza,Fowl Plague,Influenza, Avian,Avian Influenzas,Flu, Avian,Influenza in Bird,Influenzas, Avian,Plague, Fowl
D005822 Genetic Vectors DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition. Cloning Vectors,Shuttle Vectors,Vectors, Genetic,Cloning Vector,Genetic Vector,Shuttle Vector,Vector, Cloning,Vector, Genetic,Vector, Shuttle,Vectors, Cloning,Vectors, Shuttle
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000256 Adenoviridae A family of non-enveloped viruses infecting mammals (MASTADENOVIRUS) and birds (AVIADENOVIRUS) or both (ATADENOVIRUS). Infections may be asymptomatic or result in a variety of diseases. Adenoviruses,Ichtadenovirus,Adenovirus,Ichtadenoviruses

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