Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

CHIP-Seq analysis of CREB1 binding after ALVAC vaccination in Human PBMC

ABSTRACT: The RV144 HIV vaccine trial remains the only study to demonstrate significant protection from future HIV-1 acquisition. One of the key components of the RV144 vaccine was the use of the canarypox vector ALVAC as the priming component. Since AIDSVAX, the booster component, alone failed to provide protection we hypothesized that the ALVAC prime contributed significantly to the generation of protection. To test this, we designed a NHP immunogenicity trial to mechanistically link ALVAC vaccination with the magnitude of V1V2 titers, the most significant immune correlate of reduced HIV-1 acquisition in RV144. Our objective was to use a systems biology approach to identify the transcription factors, target genes and immune pathways which were being induced by ALVAC vaccination and associated with higher V1V2 titers. We identified the transcription factor CREB1 and its target genes as rapidly induced by ALVAC in multiple immune subsets and that CREB1 drives the expression and activation of a network of other TFs which are critical for modulating immune responses. Pathways induced by this ALVAC-CREB1 axis include lymphocyte/leukocyte migration, lymphocyte differentiation, antigen processing and presentation, T cell co-stimulation and cytokine signaling.

ORGANISM(S): Homo sapiens

PROVIDER: GSE180747 | GEO | 2021/07/25

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Microarray analysis of correlates of vaccine immunogenecity following ALVAC vaccination in NHP in Study 36

Project description:The RV144 HIV vaccine trial remains the only study to demonstrate significant protection from future HIV-1 acquisition. One of the key components of the RV144 vaccine was the use of the canarypox vector ALVAC as the priming component. Since AIDSVAX, the booster component, alone failed to provide protection we hypothesized that the ALVAC prime contributed significantly to the generation of protection. To test this, we designed a NHP immunogenicity trial to mechanistically link ALVAC vaccination with the magnitude of V1V2 titers, the most significant immune correlate of reduced HIV-1 acquisition in RV144. Our objective was to use a systems biology approach to identify the transcription factors, target genes and immune pathways which were being induced by ALVAC vaccination and associated with higher V1V2 titers. We identified the transcription factor CREB1 and its target genes as rapidly induced by ALVAC in multiple immune subsets and that CREB1 drives the expression and activation of a network of other TFs which are critical for modulating immune responses. Pathways induced by this ALVAC-CREB1 axis include lymphocyte/leukocyte migration, lymphocyte differentiation, antigen processing and presentation, T cell co-stimulation and cytokine signaling.

2021-07-26 | GSE180677 | GEO

CHIP-Seq analysis of CREB1 binding after ALVAC vaccination in NHP

2021-07-25 | GSE180748 | GEO

Innate immune signatures to a partially-efficacious HIV vaccine predict correlates of HIV-1 infection risk

Project description:Using specimens from a phase 1b trial of the RV144 regimen in HIV-1-uninfected South Africans (HVTN 097), we profiled innate responses to the first ALVAC-HIV immunization. PBMC transcriptional responses peaked 1 day post-vaccination. Type I and II interferon signaling pathways were activated, as were innate pathways critical for adaptive immune priming.

2021-03-17 | GSE164366 | GEO

Transcriptomic profiling of RV144 trial participants before and after vaccination with ALVAC-HIV and AIDSVAX B/E.[rv144pilot]

Project description:The RV144 clinical trial evaluated the efficacy of a vaccine regimen that included ALVAC-HIV prime and AIDSVAX boost in preventing HIV-1 acquisition. The vaccine reduced the risk of HIV-1 acquisition by 31.2%; however the mechanisms that led to the protection induced by this vaccine remain poorly understood. Our objectives were to identify transcriptional correlates and mechanisms that could explain the reduced acquisition conferred by the vaccine. We assessed the transcriptomic profile of HIV Env stimulated peripheral blood mononuclear cells collected from 223 participants two weeks after vaccination and from 40 placebo recipients.

2019-02-15 | GSE103671 | GEO

Transcriptomic profiling of RV144 trial participants after vaccination with ALVAC-HIV and AIDSVAX B/E. [rv144]

2019-02-15 | GSE103733 | GEO

Homo sapiens

Project description:Transcriptomic profiling of RV144 trial participants after vaccination with ALVAC-HIV and AIDSVAX B/E. [rv144]

| PRJNA406921 | ENA

Microarray analysis to identify optimal timepoint post-ALVAC vaccintation to investigate innate immune pathways

Project description:ALVAC-Comp was an NHP immunogenicity study designed to identify the temporal kinetics of innate immune activation by ALVAC-SIV vaccination. PAXGENE tubes were harvested at 16h, 24h, 48h and 72h post vaccination to investigate the speed, magnitude, and durability of ALVAC-SIV induced innate immune activation. This study was set up to identify the optimal timepoint(s) post-vaccination in which to probe the cellular and molecular signaling mechanisms of innate immunity induced by vaccination. Comparison of genes/pathways in common and unique to the 4 post-vaccination timepoints will reveal the order of innate immune induction post-vaccination.

2021-08-13 | GSE181996 | GEO

CHIP-Seq analysis of CREB1 binding after ALVAC vaccination

Project description:CHIP-Seq analysis of CREB1 binding after ALVAC vaccination

| PRJNA749324 | ENA

Breakthrough infections by SARS-CoV-2 variants boost cross-reactive hybrid immune responses in mRNA-vaccinated Golden Syrian Hamsters

Project description:Hybrid immunity (vaccination + natural infection) to SARS-CoV-2 provides superior protection to re-infection. We performed immune profiling studies during breakthrough infections in mRNA-vaccinated hamsters to evaluate hybrid immunity induction. Vaccine was dosed to induce binding antibody titers against ancestral spike, but not efficient virus neutralization of ancestral SARS-CoV-2 or variants of concern (VoCs). Vaccination reduced morbidity and controlled lung virus titers for ancestral virus and Alpha but allowed breakthrough infections in Beta, Delta and Mu-challenged hamsters. Vaccination primed for T cell responses that were boosted by infection. Infection back-boosted neutralizing antibody responses against ancestral virus and VoCs. Hybrid immunity resulted in more cross-reactive sera, reflected by smaller antigenic cartography distances. Transcriptomics post infection reflects both vaccination status and disease course, and suggests a role for interstitial macrophages in vaccine-mediated protection. Therefore, protection by vaccination, even in the absence of neutralizing antibodies, correlates with recall of broadly reactive B- and T-cell responses.

2023-12-18 | GSE246866 | GEO

MicroRNA profiling of extracellular vesicles isolated from rhesus macaques vaccinated with DNA/ALVAC/gp120 vaccine

Project description:We contrasted innate and adaptive immune responses elicited by the DNA/ALVAC/gp120/alum vaccine in non-human primates differing in age. We performed several analyses. MicroRNA profiling in Extracellular Vesicles (EVs) isolated from plasma collected prior and 1 week following vaccination identified 109 miRNAs that differed significantly between age groups at the end of immunization. Several miRNAs correlated with risk of virus acquisition in young and old animals, but none remained significant following correction for FDR. In young animals, we identified 3 miRNAs which were modified by vaccination and correlated with decreased risk of SIV acquisition (unadjusted p-values). Of these three miRNAs, two, miR-139-5p and miR-29b-1-5p, were increased by vaccination, whereas one, mir 98, decreased by vaccination. MiR-139-5p has several validated targets, including: CXCR4, important for egress of CXCR4+ cells and monocytes from bone marrow and HIV entry in target T-cells; the cAMP-specific PDE4D gene which decreases CREB1-mediated transcription by degrading cAMP; and the IGF-1/AKT/Glut1 gene receptor, central for glucose utilization and cellular metabolism. The validated target of miR-29b-1-5p is the NF-kB pathway. Mir-98 has several validated targets, inhibits IL-10 production, modulates M1-M2 polarization of macrophages towards the M1 phenotype, and its CCL2-induced downregulation increases IL-6 production. These data suggest the importance of CREB1-mediated transcription in vaccine efficacy, identified in the study, is likely assisted by miR-139-5p targeting the cAMP-degrading PDE4D gene, and downregulation of the NF-kB pathway, targeted by miR-29b-1-5p.

2023-01-06 | GSE188575 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data