|
KMID : 1039120210100020132
|
|
Clinical and Experimental Vaccine Research
2021 Volume.10 No. 2 p.132 ~ p.140
|
|
|
Outer membrane proteins of Salmonella typhimurium as an adjuvant in rabies vaccine
|
|
Negm Iman Ibrahim
Ragab Yasser M.
Mohamed Aly Fahmy
|
|
|
Abstract
|
|
|
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.
|
|
|
KEYWORD
|
|
|
Rabies, Outer membrane proteins, Adjuvant, Vaccine, Immune response
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
  
|