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Antibody Responses and the Vaccine Efficacy of Recombinant Glycosyltransferase and Nicastrin Against Schistosoma japonicum

文献类型： 外文期刊

作者： Dong, Bowen 1 ; Zhong, Haoran 1 ; Zhu, Danlin 1 ; Wu, Luobin 2 ; Wang, Jinming 3 ; Li, Hao 1 ; Jin, Yamei 1 ;

作者机构： 1.Chinese Acad Agr Sci, Shanghai Vet Res Inst, Natl Reference Lab Anim Schistosomiasis, Key Lab Anim Parasitol Minist Agr & Rural Affairs, Shanghai 200241, Peoples R China

2.Shanghai Normal Univ, Coll Life Sci, Shanghai 200234, Peoples R China

3.Lanzhou Univ, Lanzhou Vet Res Inst, State Key Lab Anim Dis Control & Prevent, Chinese Acad Agr Sci,Coll Vet Med, Lanzhou 730000, Peoples R China

4.Gansu Prov Res Ctr Basic Disciplines Pathogen Biol, Key Lab Vet Parasitol Gansu Prov, Lanzhou 730046, Peoples R China

关键词： Schistosoma japonicum; SjGT; SjNCSTN; immune protection

期刊名称：PATHOGENS （ 影响因子：3.3； 五年影响因子：3.6 ）

ISSN：

年卷期： 2025 年 14 卷 1 期

页码：

收录情况： SCI

摘要： Schistosomiasis is a neglected tropical disease and the second most common parasitic disease after malaria. While praziquantel remains the primary treatment, concerns about drug resistance highlight the urgent need for new drugs and effective vaccines to achieve sustainable control. Previous proteomic studies from our group revealed that the expression of Schistosoma japonicum glycosyltransferase and nicastrin as proteins was higher in single-sex males than mated males, suggesting their critical roles in parasite reproduction and their potential as vaccine candidates. In this study, bioinformatic tools were employed to analyze the structural and functional properties of these proteins, including their signal peptide regions, transmembrane domains, tertiary structures, and protein interaction networks. Recombinant forms of glycosyltransferase and nicastrin were expressed and purified, followed by immunization experiments in BALB/c mice. Immunized mice exhibited significantly elevated specific IgG antibody levels after three immunizations compared to adjuvant and PBS controls. Furthermore, immunization with recombinant glycosyltransferase and nicastrin significantly reduced the reproductive capacity of female worms and liver egg burden, though egg hatchability and adult worm survival were unaffected. These findings demonstrate that recombinant glycosyltransferase and nicastrin are immunogenic and reduce female worm fecundity, supporting their potential as vaccine candidates against schistosomiasis.

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