Naturally acquired anti-Plasmodium falciparum immunity protects first and foremost against severe disease. Raj et al. have established a tantalizing path towards an anti-disease vaccine by identifying glutamic acid-rich protein (GARP) antibodies as signatures of protection against severe malaria in Tanzanian children and demonstrating efficacy in blood cultures and monkey trials.
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http://dx.doi.org/10.1016/j.pt.2020.05.012 | DOI Listing |
Background: Circulating T-follicular helper (cT ) cells have the potential to provide an additional correlate of protection against ( as they are essential to promote B cell production of long-lasting antibodies. Assessing the specificity of cT subsets to individual malaria antigens is vital to understanding the variation observed in antibody responses and identifying promising malaria vaccine candidates.
Methods: Using spectral flow cytometry and unbiased clustering analysis we assessed antigen-specific cT cell recall responses to malaria vaccine candidates SEA-1A and GARP within a cross-section of children and adults living in a malaria holoendemic region of western Kenya.
bioRxiv
September 2024
Department of Pathology and Laboratory Medicine, Brown University, Providence, RI.
Artemisinins have been a cornerstone of malaria control, but resistance in , due to mutations in the Kelch13 (K13) protein, threaten these advances. Artemisinin exposure results in a dynamic transcriptional response across multiple pathways, but most work has focused on ring stages and transcriptional analysis. We applied single cell RNAseq to two unsynchronized coisogenic parasite lines (K13 and K13) over 6 hrs after a pulse exposure to dihydroartemisinin (DHA).
View Article and Find Full Text PDFTrends Parasitol
August 2020
Department of Molecular Parasitology, Institute of Biology, Humboldt University, 10115 Berlin, Germany.
Naturally acquired anti-Plasmodium falciparum immunity protects first and foremost against severe disease. Raj et al. have established a tantalizing path towards an anti-disease vaccine by identifying glutamic acid-rich protein (GARP) antibodies as signatures of protection against severe malaria in Tanzanian children and demonstrating efficacy in blood cultures and monkey trials.
View Article and Find Full Text PDFNature
June 2020
Center for International Health Research, Rhode Island Hospital, Brown University Medical School, Providence, RI, USA.
Malaria caused by Plasmodium falciparum remains the leading single-agent cause of mortality in children, yet the promise of an effective vaccine has not been fulfilled. Here, using our previously described differential screening method to analyse the proteome of blood-stage P. falciparum parasites, we identify P.
View Article and Find Full Text PDFBlood
January 2019
Graduate Program in Pharmacology and Experimental Therapeutics and.
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