Debaki R Howlader, Rahul Shubhra Mandal, Ti Lu, Suhrid Maiti, Zackary K Dietz, Sayan Das, Sean K Whittier, Aaron C Nagel, Satabdi Biswas, David J Varisco, Francesca M Gardner, Robert K Ernst, William D Picking, Wendy L Picking
Pseudomonas aeruginosa (Pa) is an opportunistic bacterial pathogen responsible for severe hospital acquired infections in immunocompromised and elderly individuals. Emergence of increasingly drug resistant strains and the absence of a broad-spectrum prophylactic vaccine against both T3SA+ (type III secretion apparatus) and ExlA+ /T3SA- Pa strains worsen the situation in a post-pandemic world. Thus, we formulated a candidate subunit vaccine (called ExlA/L-PaF/BECC/ME) against both Pa types. This bivalent vaccine was generated by combining the C-terminal active moiety of exolysin A (ExlA) produced by non-T3SA Pa strains with our T3SA-based vaccine platform, L-PaF, in an oil-in-water emulsion...
2024: Frontiers in Immunology