Key result
Bioinformatic analysis revealed that 55% of predicted CD4 T-cell epitopes from Orientia tsutsugamushi TSA domains had high binding affinities to prevalent Indian HLA alleles, with 61% located in spacer domains.
Population
345 partial sequences of the 56 kDa type-specific antigen of Orientia tsutsugamushi from India, and 391 TSA…
Design
Preclinical
Authors
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Hypothesis-generating for TSA-based scrub typhus vaccines in India; functional validation and trials needed before any clinical use.
Conserved spacer domains of the Orientia tsutsugamushi 56 kDa antigen are predicted to be functionally more important in immune responses than previously appreciated, which has implications for scrub typhus vaccine design.
Ramaiah et al. (2018) studied Scrub typhus (Orientia tsutsugamushi infection) (n=736). Orientia tsutsugamushi TSA sequences was evaluated on High binding affinity (HBA) of predicted CD4 T-cell epitopes to prevalent HLA alleles. Bioinformatic analysis revealed that 55% of predicted CD4 T-cell epitopes from Orientia tsutsugamushi TSA domains had high binding affinities to prevalent Indian HLA alleles, with 61% located in spacer domains.
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