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Infect Immun, April 1998, p. 1764-1767, Vol. 66, No. 4
INSERM U1671 and
INSERM U477,3 Institut Pasteur de Lille,
F-59019 Lille Cedex, France, and
Faculté de
Pharmacie, Université de Montréal, Montréal,
Québec, Canada2
Received 5 September 1997/Returned for modification 24 November
1997/Accepted 20 January 1998
In an attempt to increase the immunogenicity of mucosally delivered
antigens, we incorporated the Bordetella pertussis
filamentous hemagglutinin (FHA) adhesin into liposomes containing the
glutathione S-transferase of Schistosoma
mansoni (Sm28GST) as a model antigen. Outbred mice immunized
twice intranasally with liposomes containing a constant suboptimal dose
of Sm28GST and increasing doses of FHA produced anti-Sm28GST antibodies
in a FHA dose-dependent manner. The addition of 3 µg of FHA to the
liposomes induced more than 10-fold-higher anti-Sm28GST antibody
titers, compared to those induced by liposomes without FHA. The
presence of FHA did not alter the nature of the humoral immune
response, and the sera contained anti-Sm28GST immunoglobulin G1 (IgG1),
IgG2a, and IgG2b. However, anti-Sm28GST IgA was only detected when at
least 3 µg of FHA was added to the preparation. These results show a
promising potential for FHA to enhance the immunogenicity of mucosally
administered antigens incorporated into liposomes.
0019-9567/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Bordetella pertussis Filamentous
Hemagglutinin Enhances the Immunogenicity of Liposome-Delivered Antigen
Administered Intranasally


*
Corresponding author. Mailing address: INSERM U167,
Institut Pasteur de Lille, 1, rue du Professeur Calmette, BP 245, F-59019 Lille Cedex, France. Phone: (33) 3 20 87 77 81. Fax: (33) 3 20 87 78 88. E-mail: odile.poulain{at}pasteur-lille.fr.
Present address: University of Göteborg, Dept. Medical
Microbiology, 41346 Göteborg, Sweden.
Present address: Merck Sharp & Dohme Research Laboratories, 69367 Lyon Cedex 07, France.
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