Protection of mice against yellow fever virus encephalitis by immunization with a vaccinia virus recombinant encoding the yellow fever virus non-structural proteins, NS1, NS2a and NS2b. 1990

J R Putnak, and J J Schlesinger
Department of Virus Diseases, Walter Reed Army Institute of Research, Washington, D.C. 20307.

Recent evidence of a protective immune response to the flavivirus non-structural protein, NS1, has suggested its incorporation into possible recombinant vaccines. The region of the 17D yellow fever virus (YFV) genome encoding the C terminus of envelope glycoprotein and extending to the N terminus of non-structural protein NS3 (NS1-NS2a-NS2b; nucleotides 2030 to 4940) was expressed in vaccinia virus and physical and immunogenic properties of the NS1 moiety were studied. Recombinant NS1 protein, and native YFV NS1, was detected at the surface of infected cells by immunofluorescence and by immune cytolysis after treatment with anti-NS1 antibody and complement. NS1 was also detected in the extracellular medium as a secreted form. Recombinant NS1 was immunoprecipitated as a single protein of approximately the same size as native 17D YFV NS1. Unboiled, both recombinant and native NS1 formed polymers of high Mr. Immunization of mice with this recombinant vaccinia virus stimulated production of non-neutralizing, complement-fixing cytolytic antibody and conferred partial protection against lethal intracerebral inoculation of mice with live 17D YFV.

UI MeSH Term Description Entries
D007114 Immunization Deliberate stimulation of the host's immune response. ACTIVE IMMUNIZATION involves administration of ANTIGENS or IMMUNOLOGIC ADJUVANTS. PASSIVE IMMUNIZATION involves administration of IMMUNE SERA or LYMPHOCYTES or their extracts (e.g., transfer factor, immune RNA) or transplantation of immunocompetent cell producing tissue (thymus or bone marrow). Immunologic Stimulation,Immunostimulation,Sensitization, Immunologic,Variolation,Immunologic Sensitization,Immunological Stimulation,Sensitization, Immunological,Stimulation, Immunologic,Immunizations,Immunological Sensitization,Immunological Sensitizations,Immunological Stimulations,Sensitizations, Immunological,Stimulation, Immunological,Stimulations, Immunological,Variolations
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
D011233 Precipitin Tests Serologic tests in which a positive reaction manifested by visible CHEMICAL PRECIPITATION occurs when a soluble ANTIGEN reacts with its precipitins, i.e., ANTIBODIES that can form a precipitate. Precipitin Test,Test, Precipitin,Tests, Precipitin
D002213 Capsid The outer protein protective shell of a virus, which protects the viral nucleic acid. Capsids are composed of repeating units (capsomers or capsomeres) of CAPSID PROTEINS which when assembled together form either an icosahedral or helical shape. Procapsid,Prohead,Capsids,Procapsids,Proheads
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs
D004660 Encephalitis Inflammation of the BRAIN due to infection, autoimmune processes, toxins, and other conditions. Viral infections (see ENCEPHALITIS, VIRAL) are a relatively frequent cause of this condition. Inflammation, Brain,Rasmussen Syndrome,Brain Inflammation,Encephalitis, Rasmussen,Rasmussen Encephalitis,Rasmussen's Syndrome,Brain Inflammations
D005455 Fluorescent Antibody Technique Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy. Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
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
D014614 Vaccines, Synthetic Small synthetic peptides that mimic surface antigens of pathogens and are immunogenic, or vaccines manufactured with the aid of recombinant DNA techniques. The latter vaccines may also be whole viruses whose nucleic acids have been modified. Antigens, Synthetic,Chemical Vaccine,Chemical Vaccines,Immunogens, Synthetic,Molecular Vaccine,Molecular Vaccines,Recombinant Vaccine,Semisynthetic Vaccine,Semisynthetic Vaccines,Synthetic Antigen,Synthetic Vaccine,Synthetic Vaccines,Vaccines, Recombinant,Synthetic Antigens,Synthetic Immunogens,Vaccines, Chemical,Vaccines, Molecular,Vaccines, Semisynthetic,Antigen, Synthetic,Recombinant Vaccines,Vaccine, Chemical,Vaccine, Molecular,Vaccine, Recombinant,Vaccine, Semisynthetic,Vaccine, Synthetic
D014758 Viral Core Proteins Proteins found mainly in icosahedral DNA and RNA viruses. They consist of proteins directly associated with the nucleic acid inside the NUCLEOCAPSID. Core Proteins, Viral,Major Core Protein,Major Core Proteins, Viral,Adenovirus Core Protein VII,Core Protein V,Core Protein lambda 2,Influenza Virus Core Proteins,Major Core Protein lambda 1,Major Core Protein lambda-1,Major Core Protein sigma 2,Major Core Protein sigma-2,OVP 19,Oncornaviral Protein P19,P30 Core Proteins,Viral Protein P19,Virus Core Proteins,Core Protein, Major,Core Proteins, P30,Core Proteins, Virus,Protein P19, Oncornaviral,Protein P19, Viral,Protein, Major Core,Proteins, P30 Core,Proteins, Viral Core,Proteins, Virus Core

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