HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via CrossRef Citing Articles via Google Scholar Google Scholar Articles by Morein, B. Articles by Simons, K. Search for Related Content PubMed PubMed Citation Articles by Morein, B. Articles by Simons, K. Agricola Articles by Morein, B. Articles by Simons, K.

Protein Subunit Vaccines of Parainfluenza Type 3 Virus: Immunogenic Effect in Lambs and Mice

¹ Department of Virology, Faculty of Veterinary Medicine, National Veterinary Institute, Biomedical Center, Uppsala, Sweden
² Moredun Institute, Edinburgh, U.K.
³ European Molecular Biology Laboratory, Heidelberg, Federal Republic of Germany

Protein subunit vaccines were prepared from a mixture of the haemagglutinin (HN) and fusion (F) glycoproteins of parainfluenza type 3 virus (PI-3). The glycoproteins were isolated in three different forms and characterized by their sedimentation coefficients: 30S protein micelles (a complex of several HN and F glycoproteins devoid of detergent and lipid), 18S protein-TX complexes (a complex of several glycoproteins containing the detergent Triton X-100), and 4S protein-TX complexes (probably monomers of the glycoproteins complexed to Triton X-100). These preparations were tested as vaccines in mice and lambs. The immune response in the mice was assayed both in the serum and in extracts from the lungs using an ELISA technique. Both of the multimeric complexes were highly immunogenic. The 30S protein micelles induced a high antibody response after two injections with either 10 or 1 µg protein. The serum IgG titres reached levels of about 90 µg/ml and 40 µg/ml respectively. Similar titres were reached with the 18S protein-TX complexes. After two injections of either the 30S or the 18S complexes IgA antibody responses were detected in the lung extracts. The 4S protein-TX complexes were poor immunogens and induced low antibody responses in mice. The lambs were vaccinated with the 30S protein micelles, and the immune response was evaluated serologically and in challenge experiments. The 30S protein micelles in an oil adjuvant induced detectable serum antibody titres as well as protective immunity against the pneumonia caused by the PI-3 virus.

Keywords: protein micelles, immunogenicity, antigens, enveloped viruses

Received 6 December 1982; accepted 17 February 1983.

This article has been cited by other articles:

				K. J. Henrickson Parainfluenza Viruses Clin. Microbiol. Rev., April 1, 2003; 16(2): 242 - 264. [Abstract] [Full Text] [PDF]