Abstract
As the most common cause of bacillary dysentery or shigellosis, Shigella sonnei (S nonnei) has spread throughout the world. Invasion of the colorectal epithelial cells by this facultative intracellular bacterium occurs via various virulence factors. The increase in the resistance rate highlights the need for novel interventions, particularly increasing the urgency of the development of Shigella vaccines that may offer an effective solution. A multiepitope protein vaccine (MEPV) construct previously designed using bioinformatics tools against Shigella species, was applied in vivo in BALB/C mice. The designed vaccine construct was expressed in a bacterial host, purified, and finally confirmed by Western blot analysis. The immunogenicity of the purified MEPV was assessed against S sonnei via intranasal and subcutaneous administration routes, followed by evaluating its protective efficiency. We observed that interferon-gamma, interleukin-4, and immunoglobulin G levels were increased in all experimental groups. Therefore, The MEPV effectively protected the mice against S sonnei.
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