Article (Scientific journals)
Characterization of the cattle serum antibody responses against TEM beta-lactamase and the nonimmunogenic Escherichia coli heat-stable enterotoxin (STaI)
Zervosen, Astrid; Saegerman, Claude; Antoniotti, Ingrid et al.
2008In FEMS Immunology and Medical Microbiology, 54 (3), p. 319-329
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Keywords :
heat-stable enterotoxin STa; beta-lactamase TEM-1; vaccine; cattle; hybrid protein
Abstract :
[en] In order to test the use of a subunit recombinant vaccine for its capacity to induce antibodies against the nonimmunogenic heat-stable enterotoxin STa from Escherichia coli and the TEM-1 beta-lactamase, cattle were immunized with a hybrid protein created by insertion of the STa sequence at position 197 of the TEM-1 beta-lactamase. Specific anti-STa IgG and IgG1 antibodies were detected at low levels, while no IgG2 antibodies were detected. In contrast, high levels of the different anti-TEM IgG subtypes were detected in cattle sera. In addition, beta-lactamase activity was inhibited by the sera. The presence of antibodies against STa and TEM-1 beta-lactamase was assessed in sera from 366 cattle taken from the field. No significant level of IgGs against the toxin or the TEM-1 was detected. A comparison of the antibody level between the immunized and the nonimmunized animals clearly demonstrated that STa was not able to induce a significant level of antibodies in the vaccinated animals. In contrast, a strong antibody response against TEM-1 beta-lactamase was demonstrated.
Research center :
CIP - Centre d'Ingénierie des Protéines - ULiège
Disciplines :
Veterinary medicine & animal health
Biochemistry, biophysics & molecular biology
Author, co-author :
Zervosen, Astrid ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Saegerman, Claude  ;  Université de Liège - ULiège > Département des maladies infectieuses et parasitaires > Epidémiologie et analyse des risques appl. aux sc. vétér.
Antoniotti, Ingrid
Robert, Béatrice
Ruth, Nadia 
Collard, Alfred
Schynts, Frédéric
Galleni, Moreno ;  Université de Liège - ULiège > Département des sciences de la vie > Macromolécules biologiques
Mercuri, Paola ;  Université de Liège - ULiège > Centre d'ingénierie des protéines
Language :
English
Title :
Characterization of the cattle serum antibody responses against TEM beta-lactamase and the nonimmunogenic Escherichia coli heat-stable enterotoxin (STaI)
Publication date :
2008
Journal title :
FEMS Immunology and Medical Microbiology
ISSN :
0928-8244
Publisher :
Blackwell Publishing, Oxford, United Kingdom
Volume :
54
Issue :
3
Pages :
319-329
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 23 July 2009

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