Journal
VACCINE
Volume 21, Issue 25-26, Pages 4059-4070Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0264-410X(03)00267-6
Keywords
rotavirus; rotavirus-like particles; VLP; immunostimulating complexes; ISCOM; gnotobiotic pigs; antibody responses
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Funding
- NIAID NIH HHS [R01AI37111, R01AI33561] Funding Source: Medline
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We evaluated antibody responses and protection induced by attenuated Wa human rotavirus (AttHRV) and VP2/6-rotavirus-like particles (VLP), 100 or 250 mug/dose, with immunostimulating complexes (ISCOM) (VLP/ISCOM) each given orally, alone or sequentially to gnotobiotic pigs. The AttHRV-VLP 250 mug/ISCOM and three-dose-AttHRV (AttHRV3x) groups had significantly higher serum IgA, IgG and intestinal IgA antibody titers to HRV pre-challenge than the three-dose-VLP 100 mug/ISCOM group (VLP/ISCOM3x) and controls (diluent/ISCOMmatrix). Protection rates against viral shedding and diarrhea were highest in the AttHRV-VLP250 mug/ISCOM and AttHRV3x groups, lower in the AttHRV-VLP 100 mug/ISCOM group, with no protection in the VLP/ISCOM3x group and controls. Thus, VLP/ISCOM boosted antibody titers and protection after priming with AttHRV. (C) 2003 Elsevier Science Ltd. All rights reserved.
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