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标题：Outer membrane proteins of Salmonella typhimurium as an adjuvant in rabies vaccine
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作者：Iman Ibrahim Negm ; Yasser M. Ragab ; Aly Fahmy Mohamed 等
期刊名称：Clinical and Experimental Vaccine Research
印刷版ISSN：2287-3651
出版年度：2021
卷号：10
期号：2
页码：132-140
DOI：10.7774/cevr.2021.10.2.132
语种：English
出版社：KoreaMed Synapse
摘要：Purpose The objective of the present study was to evaluate the immune-enhancing potential of Salmonella typhimurium outer membrane protein (OMP) and alum as adjuvants towards inactivated Vero cells rabies vaccine (FRV/K2). Materials and Methods Six groups of female Sprague Dawley albino rats (10/group) were used in the evaluation of immunogenicity and safety of vaccines and adjuvants. Total immunoglobulin G secreted interferon-gamma (IFN-γ), and the percentage of proliferated CD4+ and CD8+ T cells were measured. Biochemical analysis and histopathological examination were used to test safety profiles. Results OMP adjuvanted rabies vaccine (FRV/K2+OMP) (OMP combined locally prepared vaccine) induced significantly higher neutralizing antibodies on day 21 post-vaccination relative to free (FRV/K2) vaccine and alum adsorbed vaccine (FRV/K2+alum) (alum adsorbed locally prepared vaccine). (FRV/K2+OMP) induced a significantly higher level of IFN-γ on day 14 post-vaccination. CD8+ T cells were significantly higher post-vaccination with reference (RV), free (FRV/K2), and (FRV/K2+OMP) than (FRV/K2+alum). On the contrary, CD4+ T cells were significantly elevated post-vaccination with (FRV/K2+alum) at p<0.05. Biochemical analysis and histopathological examination revealed that OMP could be used safely as an adjuvant for the development of more effective rabies vaccines. Conclusion Outer membrane proteins adjuvanted rabies vaccines would be beneficial to induce rapid neutralizing antibodies and essential cytokines.
关键词：enRabies;Outer membrane proteins;Adjuvant;Vaccine;Immune response