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Memory CD8+ T cell-mediated protection against liver-stage malaria
Journal article   Open access   Peer reviewed

Memory CD8+ T cell-mediated protection against liver-stage malaria

Mariah Hassert, Sahaana Arumugam and John T Harty
Immunological reviews, Vol.316(1), pp.84-103
07/2023
DOI: 10.1111/imr.13202
PMCID: PMC10524177
PMID: 37014087
url
https://doi.org/10.1111/imr.13202View
Published (Version of record) Open Access

Abstract

Nearly half of the world's population is at risk of malaria, a disease caused by the protozoan parasite Plasmodium, which is estimated to cause more than 240,000,000 infections and kill more than 600,000 people annually. The emergence of Plasmodia resistant to chemoprophylactic treatment highlights the urgency to develop more effective vaccines. In this regard, whole sporozoite vaccination approaches in murine models and human challenge studies have provided substantial insight into the immune correlates of protection from malaria. From these studies, CD8+ T cells have come to the forefront, being identified as critical for vaccine-mediated liver-stage immunity that can prevent the establishment of the symptomatic blood stages and subsequent transmission of infection. However, the unique biological characteristics required for CD8+ T cell protection from liver-stage malaria dictate that more work must be done to design effective vaccines. In this review, we will highlight a subset of studies that reveal basic aspects of memory CD8+ T cell-mediated protection from liver-stage malaria infection.
Malaria liver-stage immunity CD8+ T cell immunity human challenge models malaria vaccines mouse models of malaria UIOWA OA Agreement

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