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Niu T, Fan T, Wang Y, Gao K, Zhao J, Wang R, Chen X, Xing J, Qiu J, Zou B, Fan S, Zhang S, Wu Q, Yang G, Wang N, Zeng Y, Cao X, Jiang Y, Wang J, Huang H, Yang W, Shi C, Li Z, Wang C. Lactobacillus plantae Expressing Porcine Reproductive and Respiratory Syndrome Virus (PRRSV) Single-Chain Antibody Can Inhibit PRRSV Replication and Change the Intestinal Flora Structure of Piglets. Int J Mol Sci 2025; 26:2257. [PMID: 40076879 PMCID: PMC11901011 DOI: 10.3390/ijms26052257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2025] [Revised: 02/11/2025] [Accepted: 02/20/2025] [Indexed: 03/14/2025] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is an infectious disease that can cause reproductive disorders in sows and affect the breathing of piglets, seriously endangering pig breeding worldwide. In this study, Lactobacillus plantarum NC8 was used as the expression delivery vector of foreign proteins, and a single-chain antibody was designed based on an mAb-PN9cx3 sequence. Three recombinant strains of Lactobacillus plantarum, namely, NC8/pSIP409-pgsA'-PN9cx3-scFV(E), NC8/pSIP409-pgsA'-PN9cx3-HC(E), and NC8/pSIP409-pgsA'-PN9cx3-LC(E), were successfully constructed. In an in vitro test, the viral load of each experimental group was significantly lower than that of the control group (p < 0.01). In the piglet challenge protection test, the percentage of CD3+CD8+T cells in the blood of piglets given complex lactic acid bacteria was significantly increased before and after the challenge (p < 0.01); the body temperature of piglets in this group was normal, the viral load of each organ was reduced, and the obvious pathological changes in each tissue were alleviated. At the same time, the abundance of Bacteroides, Fusobacterium, and other bacteria in the intestinal tracts of the piglets changed, affecting the metabolism of carbohydrates and amino acids and the differentiation of Th1 and Th2 cells. This experiment provides a feasible strategy and method for the design of a PRRSV vaccine.
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Affiliation(s)
- Tianming Niu
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Tianqi Fan
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Yingjie Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Kuipeng Gao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Jinhui Zhao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Ruyu Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Xiaolei Chen
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Junhong Xing
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Jingjing Qiu
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Boshi Zou
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Shuhui Fan
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Shi Zhang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Qiong Wu
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Guilian Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Nan Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Yan Zeng
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Xin Cao
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Yanlong Jiang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Jianzhong Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Haibin Huang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Wentao Yang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
| | - Chunwei Shi
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130000, China
| | - Zhipeng Li
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130000, China
| | - Chunfeng Wang
- College of Veterinary Medicine, Jilin Agricultural University, Changchun 130012, China; (T.N.)
- Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun 130000, China
- Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun 130000, China
- College of Animal Science and Technology, Jilin Agricultural University, Changchun 130000, China
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