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Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2 [scRNA-seq]

ABSTRACT: Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2 [scRNA-seq]

PROVIDER: PRJNA830587 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18863716.fastq.gz	Fastqsanger.gz
	SRR18863717.fastq.gz	Fastqsanger.gz
	SRR18863718.fastq.gz	Fastqsanger.gz
	SRR18863719.fastq.gz	Fastqsanger.gz
	SRR18863720.fastq.gz	Fastqsanger.gz

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Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2

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Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2 [bulk VDJ-seq]

Project description:Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2 [bulk VDJ-seq]

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Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2

Project description:This SuperSeries is composed of the SubSeries listed below.

2022-04-25 | GSE201269 | GEO

Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2 [scRNA-seq]

Project description:We generated LNP-mRNAs specifically encoding wildtype (WT), B.1.351 and B.1.617 SARS-CoV-2 spikes, and systematically studied their immune responses. Single cell transcriptomics of WT- and variant-specific LNP-mRNA vaccinated animals revealed a systematic landscape of immune cell populations and global gene expression.

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Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2 [scVDJ-seq]

Project description:We generated LNP-mRNAs specifically encoding wildtype (WT), B.1.351 and B.1.617 SARS-CoV-2 spikes, and systematically studied their immune responses. Single cell BCR-seq and TCR-seq unveiled repertoire diversity and clonal expansions in vaccinated animals.

2022-04-25 | GSE201267 | GEO

Variant-specific vaccination induces systems immune responses and potent in vivo protection against SARS-CoV-2 [bulk VDJ-seq]

Project description:We generated LNP-mRNAs specifically encoding wildtype (WT), B.1.351 and B.1.617 SARS-CoV-2 spikes, and systematically studied their immune responses. BCR-seq and TCR-seq unveiled repertoire diversity and clonal expansions in vaccinated animals.

2022-04-25 | GSE201268 | GEO

Next generation sequencing transcriptome analysis of patient-derived macrophages after SARS-CoV-2 mRNA vaccination

Project description:Innate immunity triggers responsible for viral control or hyperinflammation in COVID-19 are largely unknown. Recently we could show that the SARS-CoV-2 spike protein (S-protein) primes inflammasome formation and release of mature interleukin-1β (IL-1β) in macrophages derived from COVID-19 patients but not in macrophages from healthy SARS-CoV-2 naïve individuals (Theobald et al. EMBO Mol Med. 2021). Further analysis revealed that SARS-CoV-2 infection causes profound and long-lived reprogramming of macrophages resulting in augmented immunogenicity of the SARS-CoV-2 S-protein, a major vaccine antigen and potent driver of adaptive and innate immune signaling. In this project we want to focus on novel mRNA vaccines, which are exploiting S-protein driven immunogenicity for protection against SARS-CoV-2. Transcriptome analyses of macrophages might reveal differences in innate immune-associated pathways between vaccinated and unvaccinated individuals after prime-boost. Thus, our project could help to gain a better understanding of vaccine-induced immunity including underlying molecular mechanisms in the interaction of the innate and adaptive immune system after mRNA-based SARS-CoV-2 vaccination.

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Project description:γδ T cells provide rapid cellular immunity against pathogens. Here, we conducted matched single-cell RNA-sequencing and γδ-TCR-sequencing to delineate the molecular changes in γδ T cells during a longitudinal study following mRNA SARS-CoV-2 vaccination. While the first dose of vaccine primes Vδ2 T cells, it is the second administration that significantly boosts their immune response. Specifically, the second vaccination uncovers memory features of Vδ2 T cells, shaped by the induction of AP-1 family transcription factors and characterized by a convergent central memory signature, clonal expansion, and an enhanced effector potential. This temporally distinct effector response of Vδ2 T cells was also confirmed in vitro upon stimulation with SARS-CoV-2 spike-peptides. Indeed, the second challenge triggers a significantly higher production of IFNγ by Vδ2 T cells. Collectively, our findings suggest that mRNA SARS-CoV-2 vaccination might benefit from the establishment of long-lasting central memory Vδ2 T cells to confer protection against SARS-CoV-2 infection.

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Project description:The natural host of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) remains elusive. A panel of SARS-CoV-2-related coronaviruses have been identified in pangolins, while the infectivity and pathogenicity of these pangolin-origin coronaviruses (pCoV) to human remains largely unknown. Herein, we comprehensively characterized the infectivity and pathogenicity of pCoV-GD01, the most closest pCoV to SARS-CoV-2, in human cells, human tracheal epithelium organoids, and established animal models in comparision with. The results show that pCoV-GD01 showed similar infectivity to SARS-CoV-2 in human cells and organoids. Remarkably, intranasal inoculation of pCoV-GD01 caused severe lung pathological damage in hACE2 mice, and could establish efficient transmission among co-caged hamsters. Interestingly, in-depth antigenic analysis and animal heterologous challenge experiments demonstrate that pre-existing immunity induced by SARS-CoV-2 infection or vaccination was sufficient to provide cross-protection against pCoV-GD01 challenge. These collective results highlight the potential risk of persistent spillover from animal hosts like the pangolin, and the COVID-19 pandemic and massive vaccination have reduced the possibility of pCoVs circulation in mankind.

2023-05-25 | GSE217796 | GEO

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