KMID : 0893420170180020159
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Journal of Veterinary Science 2017 Volume.18 No. 2 p.159 ~ p.167
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Immunogenicity of recombinant Lactobacillus plantarum NC8 expressing goose parvovirus VP2 gene in BALB/c mice
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Liu Yu Ying
Yang Wen Tao Shi Shao Hua Li Ya Jie Zhao Liang Shi Chun Wei Zhou Fang Yu Jiang Yan Long Hu Jing Tao Gu Wei Yang Gui Lian Wang Chun Feng
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Abstract
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Goose parvovirus (GPV) continues to be a threat to goose farms and has significant economic effects on the production of geese. Current commercially available vaccines only rarely prevent GPV infection. In our study, Lactobacillus (L.) plantarum NC8 was selected as a vector to express the VP2 gene of GPV, and recombinant L. plantarum pSIP409-VP2/NC8 was successfully constructed. The molecular weight of the expressed recombinant protein was approximately 70 kDa. Mice were immunized with a 2 ¡¿ 109 colony-forming unit/200 ¥ìL dose of the recombinant L. plantarum strain, and the ratios and numbers of CD11c+, CD3+CD4+, CD3+CD8+, and interferon gamma- and tumor necrosis factor alpha-expressing spleen lymphocytes in the pSIP409-VP2/NC8 group were higher than those in the control groups. In addition, we assessed the capacity of L. plantarum SIP409-VP2/NC8 to induce secretory IgA production. We conclude that administered pSIP409-VP2/NC8 leads to relatively extensive cellular responses. This study provides information on GPV infection and offers a clear framework of options available for GPV control strategies.
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KEYWORD
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Lactobacillus plantarum, VP2 gene, goose parvovirus, immunization
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