Immunogenicity of Recombinant-Deficient Lactobacillus casei with Complementary Plasmid Expressing Alanine Racemase Gene and Core Neutralizing Epitope Antigen against Porcine Epidemic Diarrhea Virus.
Immunogenicity of Recombinant-Deficient Lactobacillus casei with Complementary Plasmid Expressing Alanine Racemase Gene and Core Neutralizing Epitope Antigen against Porcine Epidemic Diarrhea Virus.
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重组缺陷型干酪乳杆菌与表达丙氨酸消旋酶基因和核心中和表位抗原的互补质粒对猪流行性腹泻病毒的免疫原性
DOI:
10.3390/vaccines9101084
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发表时间:
2021-09-26
期刊:
影响因子:
7.8
通讯作者:
Li Y
中科院分区:
文献类型:
--
作者:
Li F;Wang X;Fan X;Sui L;Zhang H;Li Y;Zhou H;Wang L;Qiao X;Tang L;Li Y
Porcine epidemic diarrhea (PED), which is caused by the porcine epidemic diarrhea virus (PEDV), has occurred worldwide and poses a serious threat to the pig industry. Intestine is the main function site of PEDV; therefore, it is important to develop an oral mucosal immunity vaccine against this virus infection. Most traditional plasmid delivery vectors use antibiotic genes as a selective marker, easily leading to antibiotic accumulation and gene contamination. In this study, to explore whether the alanine racemase gene (Alr) could be used as a screening marker and develop an efficient oral vaccine against PEDV infection, a recombinant strain was constructed using Lactobacillus casei with Alr deletion (L. casei ΔAlr W56) to deliver the Alr gene and a core-neutralizing epitope (COE) antigen. This recombinant bacterium efficiently induced secretory immunoglobulin A (SIgA)-based mucosal and immunoglobulin G (IgG)-based humoral immune responses via oral vaccination in mice. Compared to the other strains, the recombinant bacteria were able to grow without the addition of D-alanine, revealing that Alr in the plasmid could function normally in defective bacteria. This oral mucosal vaccine would provide a useful strategy to substitute the application of antibiotics in the future and induce efficient immune responses against PEDV infection.
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DOI:
10.3390/v5102601
发表时间:
2013-10-22
期刊:
Viruses
影响因子:
--
作者:
Chen J;Liu X;Shi D;Shi H;Zhang X;Li C;Chi Y;Feng L
通讯作者:
Feng L
影响因子:
5
作者:
Jiang, Xinpeng;Yu, Meiling;Li, Yijing
通讯作者:
Li, Yijing
影响因子:
2.8
作者:
Eun, Chang Soo;Kim, Yong Seok;Park, Yoon Kyung
通讯作者:
Park, Yoon Kyung
影响因子:
4.4
作者:
Bron, PA;Benchimol, MG;Hols, P
通讯作者:
Hols, P
影响因子:
4
作者:
Choi, S. H.;Kwon, S. R.;Kim, K. H.
通讯作者:
Kim, K. H.