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Cd1d-Dependent B-Cell Help By Nk-Like T Cells Leads To Enhanced And Sustained Production Of Bacillus Anthracis Lethal Toxin-Neutralizing Antibodies, T. Scott Devera, Lindsay M. Aye, Gillian A. Lang, Sunil K. Joshi, Jimmy D. Ballard, Mark L. Lang
Cd1d-Dependent B-Cell Help By Nk-Like T Cells Leads To Enhanced And Sustained Production Of Bacillus Anthracis Lethal Toxin-Neutralizing Antibodies, T. Scott Devera, Lindsay M. Aye, Gillian A. Lang, Sunil K. Joshi, Jimmy D. Ballard, Mark L. Lang
Bioelectrics Publications
The current Bacillus anthracis vaccine consists largely of protective antigen (PA), the protein of anthrax toxin that mediates entry of edema factor (EF) or lethal factor (LF) into cells. PA induces protective antibody (Ab)-mediated immunity against Bacillus anthracis but has limited efficacy and duration. We previously demonstrated that activation of CD1d-restricted natural killer-like T cells (NKT) with a CD1d-binding glycolipid led to enhanced Ab titers specific for foreign antigen (Ag). We therefore tested the hypothesis that activation of NKT cells with the CD1d ligand (alpha-galactosylceramide [alpha-GC]) at the time of immunization improves PA-specific Ab responses. We observed that alpha-GC enhanced …