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Title: Enhanced induction of the IgA response in pigs by calcitriol after intramuscular immunization
Authors: Van der Stede, Y ×
Cox, E
Van den Broeck, W
Goddeeris, Bruno #
Issue Date: 2001
Publisher: ELSEVIER SCI LTD
Series Title: Vaccine vol:19 issue:15-16 pages:1870-1878
Conference: date:State Univ Ghent, Fac Vet Med, Lab Vet Immunol, B-9820 Merelbeke, Belgium; State Univ Ghent, Fac Vet Med, Dept Morphol, B-9820 Merelbeke, Belgium; Katholieke Univ Leuven, Fac Agr & Appl Biol Sci, Lab Physiol & Immunol Domest Anim, B-3001 Louvain, Belgium
Abstract: In this study, the immunomodulating effect of two steroid hormones namely 1,25-dihydroxyvitamin D-3 [1,15(OH)(2)D-3] and dehydroepiandrosterone (DHEA) was examined on the antigen-specific antibody responses by intramuscular immunization of pigs with human serum albumin alone (HSA) or supplemented with 2 mug of 1,25(OH)(2)D-3 40 mug of DHEA or the combination of both steroids. 1,25(OH)(2)D-3 significantly enhanced the antigen-specific IgA and IgM serum response. Higher HSA-specific IgA titers were also found in the mucosal secretions (saliva, feces and nasal) of the steroid treated animals, especially in the 1,25(OH)(2)D-3 group. Furthermore, 1,25(OH)(2)D-3 and DHEA increased the number of antigen-specific IgA and IgG antibody-secreting cells in the local draining lymph nodes, but only low numbers were detected in lymph nodes draining the mucosa. DI-IEA decreased the IgM serum response and had a tendency to enhance the IgG2 and IgG serum responses. Strong and comparable IgG, IgG1 and IgG2 serum responses were seen in all groups. Combining both steroids did not result in a higher IgA serum response. On the contrary DHEA seems to neutralize the effect of 1,25(OH)(2)D-3 on the IgA response. In conclusion, 1,15(OH)(2)D-3 significantly enhanced the antigen-specific IgA and IgM response in serum and the number of antigen-specific IgA and IgG ASC in the local draining lymph nodes following intramuscular immunization. (C) 2001 Elsevier Science Ltd. All rights reserved.
ISSN: 0264-410X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Gene Technology (-)
× corresponding author
# (joint) last author

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