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Xue S, Seo K, Yang M, Cui C, Yang M, Xiang S, Yan Z, Wu S, Han J, Yu X, Li Y, Jin X. Mycoplasma suis Alpha-Enolase Subunit Vaccine Induces an Immune Response in Experimental Animals. Vaccines (Basel) 2021; 9:vaccines9121506. [PMID: 34960252 PMCID: PMC8708218 DOI: 10.3390/vaccines9121506] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 11/16/2022] Open
Abstract
Recombinant protein technology has emerged as an excellent option for vaccine development. However, prior to our study, the immune induction ability of recombinant Mycoplasma suis alpha-enolase (rMseno) in animals remained unclear. The purpose of this study was to develop a rMseno protein subunit vaccine and to determine its ability to elicit an immunological response. To accomplish this, we cloned the gene into pET-15b, expressed it in BL21 cells, and purified it. Following the establishment of immunity, the immunogenicity and potential for protection of rMseno were evaluated in mice and piglets. The results demonstrate that anti-M. suis serum recognized the pure rMseno protein in both mice and piglets as evidenced by high levels of specific anti-rMseno antibodies, significantly increased levels of IFN-γ and IL-4 cytokines, and significantly increased T lymphocyte proliferation index. Piglets also had significantly increased levels of specific IgG1, IgG2a, CD4+, and CD8+ cells. The rMseno findings demonstrated a robust immunological response in mice and piglets, affording partial clinical protective efficacy in piglets.
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Affiliation(s)
- Shujiang Xue
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China
| | - Kangseok Seo
- Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea;
| | - Miaosen Yang
- Department of Chemistry, Northeast Electric Power University, Jilin 132011, China;
| | - Chengdu Cui
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
| | - Meng Yang
- Department of Pharmacy, Jiangsu Food & Pharmaceutical Science College, Huai’an 223023, China;
| | - Siyu Xiang
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
| | - Zongbin Yan
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
| | - Shengjun Wu
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
| | - Jincheng Han
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
| | - Xiaoyang Yu
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
| | - Yunxiao Li
- School of Life Science, Shandong University, Qingdao 266237, China
- Correspondence: (Y.L.); (X.J.); Tel.: +86-043-3243-5550 (X.J.)
| | - Xin Jin
- Department of Veterinary Medicine, College of Agriculture, Yanbian University, Yanji 133002, China; (S.X.); (C.C.); (S.X.); (Z.Y.); (S.W.); (J.H.); (X.Y.)
- Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji 133002, China
- Correspondence: (Y.L.); (X.J.); Tel.: +86-043-3243-5550 (X.J.)
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Qi J, Zhang F, Wang Y, Liu T, Tan L, Wang S, Tian M, Li T, Wang X, Ding C, Yu S. Characterization of Mycoplasma gallisepticum pyruvate dehydrogenase alpha and beta subunits and their roles in cytoadherence. PLoS One 2018; 13:e0208745. [PMID: 30532176 PMCID: PMC6287819 DOI: 10.1371/journal.pone.0208745] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 11/21/2018] [Indexed: 12/03/2022] Open
Abstract
Mycoplasma gallisepticum is a causative agent of chronic respiratory disease in chickens, typically causing great economic losses. Cytoadherence is the critical stage for mycoplasma infection, and the associated proteins are important for mycoplasma pathogenesis. Many glycolytic enzymes are localized on the cell surface and can bind the extracellular matrix of host cells. In this study, the M. gallisepticum pyruvate dehydrogenase E1 alpha subunit (PDHA) and beta subunit (PDHB) were expressed in Escherichia coli, and their enzymatic activities were identified based on 2,6-dichlorophenol indophenol reduction. When recombinant PDHA (rPDHA) and recombinant PDHB (rPDHB) were mixed at a 1:1 molar ratio, they exhibited strong enzymatic activity. Alone, rPDHA and rPDHB exhibited no or weak enzymatic activity. Further experiments indicated that both PDHA and PDHB were surface-exposed immunogenic proteins of M. gallisepticum. Bactericidal assays showed that the mouse anti-rPDHA and anti-rPDHB sera killed 48.0% and 75.1% of mycoplasmas respectively. A combination of rPDHA and rPDHB antisera had a mean bactericidal rate of 65.2%, indicating that rPDHA and rPDHB were protective antigens, and combining the two sera did not interfere with bactericidal activity. Indirect immunofluorescence and surface display assays showed that both PDHA and PDHB adhered to DF-1 chicken embryo fibroblast cells and adherence was significantly inhibited by antisera against PDHA and PDHB. Adherence inhibition of M. gallisepticum to DF-1 chicken embryo fibroblast cells was 30.2% for mouse anti-rPDHA serum, 45.1% for mouse anti-rPDHB serum and 72.5% for a combination of rPDHA and rPDHB antisera, suggesting that rPDHA and rPDHB antisera may have synergistically interfered with M. gallisepticum cytoadherence. Plasminogen (Plg)-binding assays further demonstrated that both PDHA and PDHB were Plg-binding proteins, which may have contributed to bacterial colonization. Our results clarified the enzymatic activity of M. gallisepticum PDHA and PDHB and demonstrated these compounds as Plg-binding proteins involved in cytoadherence.
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Affiliation(s)
- Jingjing Qi
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Fanqing Zhang
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Yu Wang
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, PR China
| | - Ting Liu
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Lei Tan
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Shaohui Wang
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Mingxing Tian
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Tao Li
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Xiaolan Wang
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
| | - Chan Ding
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, PR China
- * E-mail: (Shengqing Yu); (Chan Ding)
| | - Shengqing Yu
- Shanghai Veterinary Research Institute, the Chinese Academy of Agricultural Sciences (CAAS), Shanghai, PR China
- * E-mail: (Shengqing Yu); (Chan Ding)
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Song Q, Song W, Zhang W, He L, Fang R, Zhou Y, Shen B, Hu M, Zhao J. Identification of erythrocyte membrane proteins interacting with Mycoplasma suis GAPDH and OSGEP. Res Vet Sci 2018; 119:85-90. [PMID: 29890385 DOI: 10.1016/j.rvsc.2018.05.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 11/12/2016] [Accepted: 05/04/2018] [Indexed: 11/28/2022]
Abstract
Mycoplasma suis (M. suis) is an uncultivable haemotrophic mycoplasma that parasitizes the red blood cells of a wide range of domestic and wild animals. Adhesion of M. suis to host erythrocytes is crucial for its unique RBC-dependent lifecycle. MSG1 protein (now named as GAPDH) with homology to glyceraldehyde-3-phosphate dehydrogenase (GAPDH) was the first identified adhesion protein of M. suis. In this study, we found that O-sialoglycoprotein endopeptidase (OSGEP) is another M. suis protein capable of binding porcine erythrocytes. Recombinant OSGEP expressed in E. coli demonstrated surface localization similar to GAPDH. Purified rOSGEP bound to erythrocyte membrane preparations in a dose-dependent manner and this adhesion could be specifically inhibited by anti-rOSGEP antibodies. E. coli transformants expressing OSGEP on their surface were able to adhere to porcine erythrocytes. Furthermore, using far-western and pull-down assays, we determined the host membrane proteins that interacted with OSGEP and GAPDH were Band3 and glycophorin A (GPA). In conclusion, our studies indicated that OSGEP and GAPDH could interact with both Band3 and GPA to mediate adhesion of M. suis to porcine erythrocytes.
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Affiliation(s)
- Qiqi Song
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China; College of Animal Science and Veterinary Medicine, Tianjin Agricultural, University, Tianjin 300384, PR China
| | - Weijiao Song
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Weijing Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Lan He
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Rui Fang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Yanqin Zhou
- The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Bang Shen
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Min Hu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China
| | - Junlong Zhao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China; The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, Wuhan 430070, Hubei, PR China.
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