Comparison of the performance of SAG2, GRA6, and GRA7 for serological diagnosis of Toxoplasma gondii infection in cats

文献类型: 外文期刊

第一作者: Sabukunze, Serges

作者: Sabukunze, Serges;Gu, Haorong;Zhao, Lin;Jia, Honglin;Guo, Huanping;Jia, Honglin

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关键词: Toxoplasma gondii; SAG2; GRA3; GRA6; GRA7; serodiagnosis; cats

期刊名称:FRONTIERS IN VETERINARY SCIENCE ( 影响因子:2.6; 五年影响因子:3.1 )

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年卷期: 2024 年 11 卷

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收录情况: SCI

摘要: Toxoplasmosis is an important zoonotic disease caused by Toxoplasma gondii that can infect almost all warm-blooded animals worldwide, including humans. The high prevalence of T. gondii infection and its ability to cause serious harm to humans and animals, especially immunodeficient individuals, make it a key public health issue. Accurate diagnostic tools with high sensitivity are needed for controlling T. gondii infection. In the current study, we compared the performance of recombinant SAG2, GRA6, and GRA7 in ELISA for the serological diagnosis of T. gondii infection in cats. We further investigated the antigenicity of recombinant dense granule protein 3 (rGRA3), rGRA5, rGRA8, and rSRS29A expressed in a plant-based, cell-free expression system for detecting antibodies in T. gondii-infected cats. In summary, our data suggest that GRA7 is more sensitive than the other two antigens for the serodiagnosis of T. gondii infection in cats, and GRA3 expressed in the cell-free system is also a priming antigen in serological tests for detecting T. gondii infection in cats.

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