Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine

Abstract Our previous work showed that a plasmid-based chicken interleukin-7 (chIL-7) gene expression vector possessed potent adjuvant activity for a VP2 DNA vaccine against chicken infectious bursal disease virus (IBDV). Whether recombinant chIL-7 prepared in procaryotic expression system has the a...

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Main Authors: Dan Cui, Jianlou Zhang, Yuzhu Zuo, Shanshan Huo, Yonghong Zhang, Liyue Wang, Xiujin Li, Fei Zhong
Format: Article
Language:English
Published: BMC 2018-02-01
Series:Veterinary Research
Online Access:http://link.springer.com/article/10.1186/s13567-017-0497-3
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author Dan Cui
Jianlou Zhang
Yuzhu Zuo
Shanshan Huo
Yonghong Zhang
Liyue Wang
Xiujin Li
Fei Zhong
author_facet Dan Cui
Jianlou Zhang
Yuzhu Zuo
Shanshan Huo
Yonghong Zhang
Liyue Wang
Xiujin Li
Fei Zhong
author_sort Dan Cui
collection DOAJ
description Abstract Our previous work showed that a plasmid-based chicken interleukin-7 (chIL-7) gene expression vector possessed potent adjuvant activity for a VP2 DNA vaccine against chicken infectious bursal disease virus (IBDV). Whether recombinant chIL-7 prepared in procaryotic expression system has the adjuvant activity for inactivated IBDV vaccine remains unknown. Here, we prepared recombinant chIL-7 using an E. coli expression system and analyzed its adjuvant activity for the inactivated IBDV vaccine. The results show that the recombinant chIL-7 was successfully prepared in E. coli using the pET20b vector, which possessed biological activity to stimulate mouse B lymphocyte proliferation. Co-administration of the chIL-7 with inactivated IBDV vaccine significantly increased specific serum antibody titers against IBDV, enhanced lymphocyte proliferation and IFN-γ and IL-4 productions, and increased protection against virulent IBDV infection.
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spelling doaj.art-14c079a7749e483b9b428c1d52400b7a2022-12-21T18:43:15ZengBMCVeterinary Research1297-97162018-02-0149111110.1186/s13567-017-0497-3Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccineDan Cui0Jianlou Zhang1Yuzhu Zuo2Shanshan Huo3Yonghong Zhang4Liyue Wang5Xiujin Li6Fei Zhong7Laboratory of Molecular Virology and Immunology, College of Veterinary Medicine/College of Animal Science and Technology, Agricultural University of HebeiLaboratory of Molecular Virology and Immunology, College of Veterinary Medicine/College of Animal Science and Technology, Agricultural University of HebeiLaboratory of Molecular Virology and Immunology, College of Veterinary Medicine/College of Animal Science and Technology, Agricultural University of HebeiLaboratory of Molecular Virology and Immunology, College of Veterinary Medicine/College of Animal Science and Technology, Agricultural University of HebeiLaboratory of Molecular Virology and Immunology, College of Veterinary Medicine/College of Animal Science and Technology, Agricultural University of HebeiLaboratory of Molecular Virology and Immunology, College of Veterinary Medicine/College of Animal Science and Technology, Agricultural University of HebeiDepartment of Biotechnology, College of Environmental and Chemical Engineering, Yanshan UniversityLaboratory of Molecular Virology and Immunology, College of Veterinary Medicine/College of Animal Science and Technology, Agricultural University of HebeiAbstract Our previous work showed that a plasmid-based chicken interleukin-7 (chIL-7) gene expression vector possessed potent adjuvant activity for a VP2 DNA vaccine against chicken infectious bursal disease virus (IBDV). Whether recombinant chIL-7 prepared in procaryotic expression system has the adjuvant activity for inactivated IBDV vaccine remains unknown. Here, we prepared recombinant chIL-7 using an E. coli expression system and analyzed its adjuvant activity for the inactivated IBDV vaccine. The results show that the recombinant chIL-7 was successfully prepared in E. coli using the pET20b vector, which possessed biological activity to stimulate mouse B lymphocyte proliferation. Co-administration of the chIL-7 with inactivated IBDV vaccine significantly increased specific serum antibody titers against IBDV, enhanced lymphocyte proliferation and IFN-γ and IL-4 productions, and increased protection against virulent IBDV infection.http://link.springer.com/article/10.1186/s13567-017-0497-3
spellingShingle Dan Cui
Jianlou Zhang
Yuzhu Zuo
Shanshan Huo
Yonghong Zhang
Liyue Wang
Xiujin Li
Fei Zhong
Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine
Veterinary Research
title Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine
title_full Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine
title_fullStr Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine
title_full_unstemmed Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine
title_short Recombinant chicken interleukin-7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine
title_sort recombinant chicken interleukin 7 as a potent adjuvant increases the immunogenicity and protection of inactivated infectious bursal disease vaccine
url http://link.springer.com/article/10.1186/s13567-017-0497-3
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