期刊
VIROLOGY
卷 407, 期 2, 页码 319-324出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.virol.2010.08.007
关键词
Edible vaccines; Enteric coating; Recombinant Lactococcus lactis; H5N1 virus
类别
资金
- Natural Science Foundation of China [30825045]
Edible vaccines that can be made widely available and easily administered could bring great benefit to the worldwide battle against pandemic viral infections. They can be used not only for the vaccination of humans and domesticated animals, but also for wild herds and live stock which are otherwise difficult to vaccinate. In this study, we report the development of an edible mini-capsule form of live, non-persisting, recombinant Lactococcus lactis (L. lactis) vaccine against the highly virulent influenza H5N1 strain. Recombinant L lactis-based H5N1 HA antigen expression constructs were made and shown to be able to induce higher levels of HA-specific serum IgG and fecal IgA antibody production after oral administration. The vectors were then formulated into a mini-capsule dosage form and fed to mouse. Four doses of oral administration rendered complete protection of the mouse against lethal challenges of H5N1 virus. (C) 2010 Elsevier Inc. All rights reserved.
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