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Our previous studies on outer membrane vesicles based vaccine development against shigellosis, revealed the inability of Shigella to release significant amount of vesicles naturally, during growth. Disruption of tolA, one of the genes of the Tol–Pal system of Gram negative bacterial membrane, has increased the vesicle release rate of a Shigella boydii type 4 strain to approximately 60% higher. We...
Shigellosis is one of the leading causes of diarrhea worldwide with more than 130 million cases annually. Hence, the research of an effective vaccine is still a priority. Unfortunately, a safe and efficacious vaccine is not available yet. We have previously demonstrated the capacity of outer membrane vesicles (OMVs) to protect mice against an experimental infection with Shigella flexneri. Now, we...
Shigellosis is one of the leading causes of diarrhea worldwide with more than 165 million cases annually. Hence, a vaccine against this disease is a priority, but no licensed vaccine is still available. Considering target population as well as intrinsic risks of live attenuated vaccines, non-living strategies appear as the most promising candidates. Remarkably, the preservation of antigenic properties...
Vaccination appears to be the only rational prophylactic approach to control shigellosis. Unfortunately, there is still no safe and efficacious vaccine available. We investigated the protection conferred by a new vaccine containing outer membrane vesicles (OMVs) from Shigella flexneri with an adjuvant based on nanoparticles in an experimental model of shigellosis in mice. OMVs were encapsulated in...
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