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Series GSE102909 Query DataSets for GSE102909
Status Public on Aug 23, 2017
Title Peripheral blood transcriptomics following immunization with TLR-adjuvanted nanoparticle vaccine in rhesus macaques
Organism Macaca mulatta
Experiment type Expression profiling by array
Summary Transmission-blocking vaccines (TBVs) aim to disrupt malaria parasite development by targeting antigens expressed in the mosquito midgut and are considered an integral element of malaria eradication efforts. Here, we used non-human primates to demonstrate that immune responses to Pfs25, the leading TBV candidate, can be improved using unconjugated Pfs25 encapsulated in PLGA-based synthetic vaccine particles (SVP[Pfs25]) delivered subcutaneously, compared to the multimeric form, Pfs25-EPA administered intramuscularly. Pfs25-EPA given with the toll-like receptor (TLR)-based adjuvant GLA-LSQ induced robust Ab responses, but SVP[Pfs25] adjuvanted with GLA-LSQ or SVPs containing CpG or R848 increased Ab titers, Pfs25-specific plasmablasts, circulating memory B cells, and plasma cells in the bone marrow. Animals receiving R848 or CpG showed particularly strong type I IFN polarized innate activation, which correlated with increased Ab half-life. Only SVP[Pfs25] induced detectable Pfs25-specific CD4 Th1 and Tfh cells, correlating with improved Ab avidity. Collectively, multiple aspects of the responses elicited to Pfs25 indicate that the nanoparticle technology combined with TLR agonists is a promising platform for TBVs.
 
Overall design Four groups of rhesus macaques (n=6/group) were immunized with nanoparticles adjuvanted with nanoparticles containing CpG or R848 or the liposomal adjuvant GLA-LSQ. Whole blood was collected prior to and 24 hours after immunization and gene expression profiles were compared to cellular activation as determined by flow cytometry and cytokine production in plasma.
 
Contributor(s) Thompson E, Loré K
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Submission date Aug 22, 2017
Last update date Jul 25, 2021
Contact name Elizabeth Anne Thompson
E-mail(s) elizabeth.thompson@ki.se
Phone 851776698
Organization name Karolinska Institutet
Department Department of Medicine, Solna
Lab Loré
Street address L2:04
City Stockholm
ZIP/Postal code 17176
Country Sweden
 
Platforms (1)
GPL16026 Agilent-026806 M. mulatta (Rhesus) Oligo Microarray v2 (Feature Number version)
Samples (44)
GSM2748156 SVP[Pfs25}+SVP[CpG] Pre-bleed [E04_4 prebleed]
GSM2748157 SVP[Pfs25}+SVP[CpG] Pre-bleed [E07_7 prebleed]
GSM2748158 SVP[Pfs25}+SVP[CpG] Pre-bleed [E10_10 prebleed]
Relations
BioProject PRJNA399253

Download family Format
SOFT formatted family file(s) SOFTHelp
MINiML formatted family file(s) MINiMLHelp
Series Matrix File(s) TXTHelp

Supplementary file Size Download File type/resource
GSE102909_RAW.tar 98.0 Mb (http)(custom) TAR (of TXT)
Processed data included within Sample table

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