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Li L, Guan YC, Bai SY, Jin QW, Tao JP, Zhu GD, Huang SY. Mineralization Reduces the Toxicity and Improves Stability and Protective Immune Response Induced by Toxoplasma gondii. Vaccines (Basel) 2023; 12:35. [PMID: 38250848 PMCID: PMC10819335 DOI: 10.3390/vaccines12010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/23/2024] Open
Abstract
Vaccination is an ideal strategy for the control and prevention of toxoplasmosis. However, the thermostability and effectiveness of vaccines limit their application. Here, calcium mineralization was used to fabricate Toxoplasma gondii tachyzoites as immunogenic core-shell particles with improved immune response and thermostability. In the current study, T. gondii RH particles coated with mineralized shells were fabricated by calcium mineralization. The mineralized shells could maintain the T. gondii tachyzoites structural integrity for at least 12 months and weaken the virulence. Immunization of mice with mineralized tachyzoites induced high levels of T. gondii-specific antibodies and cytokines. The immunized mice were protected with a 100% survival rate in acute and chronic infection, and brain cyst burdens were significantly reduced. This study reported for the first time the strategy of calcium mineralization on T. gondii and proved that mineralized tachyzoites could play an immune protective role, thus expanding the application of biomineralization in T. gondii vaccine delivery.
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Affiliation(s)
- Ling Li
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China; (L.L.); (Y.-C.G.); (S.-Y.B.); (Q.-W.J.); (J.-P.T.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
| | - Yong-Chao Guan
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China; (L.L.); (Y.-C.G.); (S.-Y.B.); (Q.-W.J.); (J.-P.T.)
| | - Shao-Yuan Bai
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China; (L.L.); (Y.-C.G.); (S.-Y.B.); (Q.-W.J.); (J.-P.T.)
| | - Qi-Wang Jin
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China; (L.L.); (Y.-C.G.); (S.-Y.B.); (Q.-W.J.); (J.-P.T.)
| | - Jian-Ping Tao
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China; (L.L.); (Y.-C.G.); (S.-Y.B.); (Q.-W.J.); (J.-P.T.)
| | - Guo-Ding Zhu
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Provincial Medical Key Laboratory, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China;
| | - Si-Yang Huang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, China; (L.L.); (Y.-C.G.); (S.-Y.B.); (Q.-W.J.); (J.-P.T.)
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China
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Wang X, Qu L, Chen J, Jin Y, Hu K, Zhou Z, Zhang J, An Y, Zheng J. Toxoplasma rhoptry proteins that affect encephalitis outcome. Cell Death Discov 2023; 9:439. [PMID: 38049394 PMCID: PMC10696021 DOI: 10.1038/s41420-023-01742-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 11/07/2023] [Accepted: 11/23/2023] [Indexed: 12/06/2023] Open
Abstract
Toxoplasma gondii, a widespread obligate intracellular parasite, can infect almost all warm-blooded animals, including humans. The cellular barrier of the central nervous system (CNS) is generally able to protect the brain parenchyma from infectious damage. However, T. gondii typically causes latent brain infections in humans and other vertebrates. Here, we discuss how T. gondii rhoptry proteins (ROPs) affect signaling pathways in host cells and speculate how this might affect the outcome of Toxoplasma encephalitis.
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Affiliation(s)
- Xinlei Wang
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, 130021, China
| | - Lai Qu
- Department of Intensive Care Unit, First Hospital of Jilin University, Changchun, 130021, China
| | - Jie Chen
- Institute of Theoretical Chemistry, Jilin University, Changchun, 130021, China
| | - Yufen Jin
- Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, 130021, China
| | - Kaisong Hu
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Zhengjie Zhou
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Jiaqi Zhang
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Yiming An
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Jingtong Zheng
- Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China.
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