Systematic name M41155
Brief description Genes up-regulated in blood 6hr/1DY vs 0hr in adults (18-45) (low IgM responders) after exposure to CN54gp140 adjuvanted with GLA-AF , time point 6H/1DY combined (identical signature) , administered i.m.
Full description or abstract Systems biology approaches have recently provided new insights into the mechanisms of action of human vaccines and adjuvants. Here, we investigated early transcriptional signatures induced in whole blood of healthy subjects following vaccination with a recombinant HIV-1 envelope glycoprotein subunit CN54gp140 adjuvanted with the TLR4 agonist glucopyranosyl lipid adjuvant-aqueous formulation (GLA-AF) and correlated signatures to CN54gp140-specific serum antibody responses. Fourteen healthy volunteers aged 18-45 years were immunized intramuscularly three times at 1-month intervals and whole blood samples were collected at baseline, 6 h, and 1, 3, and 7 days post first immunization. Subtle changes in the transcriptomic profiles were observed following immunization, ranging from over 300 differentially expressed genes (DEGs) at day 1 to nearly 100 DEGs at day 7 following immunization. Functional pathway analysis revealed blood transcription modules (BTMs) related to general cell cycle activation, and innate immune cell activation at early time points, as well as BTMs related to T cells and B cell activation at the later time points post-immunization. Diverse CN54gp140-specific serum antibody responses of the subjects enabled their categorization into high or low responders, at early ( < 1 month) and late (up to 6 months) time points post vaccination. BTM analyses revealed repression of modules enriched in NK cells, and the mitochondrial electron chain, in individuals with high or sustained antigen-specific antibody responses. However, low responders showed an enhancement of BTMs associated with enrichment in myeloid cells and monocytes as well as integrin cell surface interactions. Flow cytometry analysis of peripheral blood mononuclear cells obtained from the subjects revealed an enhanced frequency of CD56dim NK cells in the majority of vaccines 14 days after vaccination as compared with the baseline. These results emphasize the utility of a systems biology approach to enhance our understanding on the mechanisms of action of TLR4 adjuvanted human vaccines.
Collection C7: Immunologic Signature
      VAX: HIPC Vaccine Response
Source publication Pubmed 29535712   Authors: Anderson J,Olafsdottir TA,Kratochvil S,McKay PF,Ístensson M,Persson J,Shattock RJ,Harandi AM
Exact source Results: Early BTM Signatures Induced in Whole Blood Post Vaccination Correlate with Later Serum Antibody Responses
Related gene sets (show 9 additional gene sets from the source publication)
External links  
Filtered by similarity ?
Organism Homo sapiens
Source platform HUMAN_GENE_SYMBOL
Dataset references  
Download gene set format: grp | gmt | xml | json | TSV metadata
Compute overlaps ? (show collections to investigate for overlap with this gene set)
Compendia expression profiles ? GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 5 genes
Gene families ? Categorize these 5 genes by gene family
Show members (show 5 members mapped to 5 genes)
Version history 7.3: First Introduced.

See MSigDB license terms here. Please note that certain gene sets have special access terms.