Transcriptional insights into the differential immune response to Infectious sporozoites critical for shaping better protective immunity

In the terms of vaccine efficacy and duration of protection in malaria vaccination is major concern against malaria. On the other hand, it is facing complications in development and administration to the host. However, whole sporozoites vaccination (WSV) is far more efficacious than any other alternative strategy. We have found that the intermittent sporozoite challenge to immune mice following RAS vaccination extends the longevity of sterile protection by maintaining CD8+T cell memory responses to LS infection and also helps in CD8a+DCs accumulation and activation in liver. Consequently, there has been great interest in elucidating and understating the sterile immunological response at mechanistic level. The information we have generated can then potentially be used in generation of next generation vaccine with improved efficacy and duration of protection. In this work, to elucidate the host initial immune response underlying the protective effects of a WSV in shaping the protected sterile protection and advances its immunogenicity in the future, a high-throughput RNA sequencing technology was used to investigate the immunization related gene expression patterns of mouse immunized with radiation attenuated sporozoites (RAS) vaccine.

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