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Virus Res. 2016 Jan 4;211:46-57. doi: 10.1016/j.virusres.2015.09.005. Epub 2015 Sep 9.

Lactobacillus plantarum vaccine vector expressing hemagglutinin provides protection against H9N2 challenge infection.

Author information

1
College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China.
2
Pulike Biological Engineering INC, Luoyang 471000, China.
3
The First Bethune Hospital Academy of Translational Medicine, Jilin University, ChangChun 130021, China.
4
College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China. Electronic address: yuli966@126.com.
5
College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun 130118, China. Electronic address: wangchunfeng@jlau.edu.cn.

Abstract

Hemagglutinin (HA) has been demonstrated as an effective candidate vaccine antigen against AIVs. Dendritic cell-targeting peptide (DCpep) can enhance the robustness of immune responses. The purpose of this study was to evaluate whether DCpep could enhance the immune response against H9N2 AIV when utilizing Lactobacillus plantarum NC8 (NC8) to present HA-DCpep in mouse and chicken models. To accomplish this, a mucosal vaccine of a recombinant NC8 strain expressing HA and DCpep that was constructed in a previous study was employed. Orally administered NC8-pSIP409-HA-DCpep elicited high serum titers of hemagglutination-inhibition (HI) antibodies in mice and also induced robust T cell immune responses in both mouse and chicken models. Orally administered NC8-pSIP409-HA-DCpep elicited high serum titers of hemagglutination-inhibition (HI) antibodies in mice and also induced robust T cell immune responses in both mouse and chicken models. These results revealed that recombinant L. plantarum NC8-pSIP409-HA-DCpep is an effective vaccine candidate against H9N2 AIVs.

KEYWORDS:

Dendritic cell-targeting peptide; H9N2 influenza virus; Hemagglutinin; Lactobacillus plantarum; Mucosal vaccination

PMID:
26363195
DOI:
10.1016/j.virusres.2015.09.005
[Indexed for MEDLINE]

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