PROTECTION OF COTTON RATS BY IMMUNIZATION WITH THE HUMAN PARAINFLUENZA VIRUS TYPE-3 FUSION (F) GLYCOPROTEIN EXPRESSED ON THE SURFACE OF INSECT CELLS INFECTED WITH A RECOMBINANT BACULOVIRUS
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作者:
HALL, SL
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机构:Respiratory Viruses Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, Bethesda
HALL, SL
MURPHY, BR
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机构:Respiratory Viruses Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, Bethesda
MURPHY, BR
COELINGH, KLV
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机构:Respiratory Viruses Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, Bethesda
COELINGH, KLV
机构:
[1] Respiratory Viruses Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, Bethesda
The antigenicity, immunogenicity and efficacy of the human PIV3 fusion (F) glycoprotein expressed in insect cells by a baculovirus vector were studied. The results indicate that the PIV3 F glycoprotein expressed by a recombinant baculovirus is antigenically authentic as determined using a panel of PIV3 F specific monoclonal antibodies. Only a low level of antibody was stimulated by immunization of animals with infected cells, but the antibody appeared to be of high quality. Immunized animals were also moderately protected against PIV3 challenge. These results indicate that the baculovirus expression system is a reasonable source of authentic PIV3 F protein for use in a subunit vaccine.