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This work describes the formulation design and development of a novel protein based adjuvant, a double mutant of heat labile toxin (dmLT), based on knowledge of the protein’s structural integrity and physicochemical degradation pathways. Various classes of pharmaceutical excipients were screened for their stabilizing effect on dmLT during exposure to thermal and agitation stresses as monitored by...
Shigellosis is an important diarrheal disease, especially among children in the developing world. About 90 million infections with Shigella spp are estimated to appear each year. We previously demonstrated that the type III secretion apparatus (T3SA) proteins IpaB and IpaD are protective antigens when administered intranasally using the mouse lethal pulmonary model. To simplify vaccine administration,...
The stockpiling of live vaccinia virus vaccines has enhanced biopreparedness against the intentional or accidental release of smallpox. Ongoing research on future generation smallpox vaccines is providing key insights into protective immune responses as well as important information about subunit-vaccine design strategies. For protein-based recombinant subunit vaccines, the formulation and stability...
Region II of the erythrocyte-binding antigen (EBA-175 RII) has been identified as a promising target for a malaria vaccine. A systematic approach to identify optimal preformulation conditions of a non-glycosylated (NG) antigen, EBA-175 RII-NG, has been developed. This approach consists of development of an empirical temperature/pH phase diagram, high throughput stabilizer screening and aluminum salt...
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