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Application of HDR-CRISPR/Cas9 and Erythrocyte Binding for Rapid Generation of Recombinant Turkey Herpesvirus-Vectored Avian Influenza Virus Vaccines

文献类型： 外文期刊

作者： Chang, Pengxiang 1 ; Ameen, Faisal 2 ; Sealy, Joshua E. 1 ; Sadeyen, Jean-Remy 1 ; Bhat, Sushant 1 ; Li, Yongqing 3 ;

作者机构： 1.Pirbright Inst, Avian Influenza Grp, Woking GU24 0NF, Surrey, England

2.Univ Vet & Anim Sci Lahore, Dept Microbiol, Lahore 54000, Pakistan

3.Beijing Acad Agr & Forestry Sci, Inst Anim Husb & Vet Med, Beijing 100097, Peoples R China

4.Inst Anim Husb & Vet Med, Sino UK Joint Lab Prevent & Control Infect Dis Li, Beijing 100097, Peoples R China

关键词： herpesvirus of turkeys (HVT); avian influenza; CRISPR; Cas9; HDR

期刊名称：VACCINES （ 影响因子：4.422； 五年影响因子：5.513 ）

ISSN：

年卷期： 2019 年 7 卷 4 期

页码：

收录情况： SCI

摘要： Avian influenza viruses (AIVs) are highly contagious and have caused huge economical loss to the poultry industry. AIV vaccines remain one of the most effective methods of controlling this disease. Turkey herpesvirus (HVT) is a commonly used live attenuated vaccine against Marek's disease; it has also been used as a viral vector for recombinant AIV vaccine development. The clustered regularly interspaced palindromic repeats (CRISPR)/Cas9 system is a gene editing tool which, in vaccinology, has facilitated the development of recombinant DNA viral-vectored vaccines. Here, we utilize homology-directed repair (HDR) for the generation of a HVT-H7N9 HA bivalent vaccine; a H7N9 HA expression cassette was inserted into the intergenic region between UL45 and UL46 of HVT. To optimize the selection efficiency of our bivalent vaccine, we combined CRISPR/Cas9 with erythrocyte binding to rapidly generate recombinant HVT-H7HA candidate vaccines.

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