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RNA-seq of LCMV GP33-specific CD8 TCR transgenic cells (P14) primed at the onset versus in the midst of persistent LCMV-Clone 13 viral infection

ABSTRACT: RNA-seq of LCMV GP33-specific CD8 TCR transgenic cells (P14) primed at the onset versus in the midst of persistent LCMV-Clone 13 viral infection

PROVIDER: PRJNA414459 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6178590.fastq.gz	Fastqsanger.gz
	SRR6178600.fastq.gz	Fastqsanger.gz
	SRR6178610.fastq.gz	Fastqsanger.gz
	SRR6178620.fastq.gz	Fastqsanger.gz
	SRR6178591.fastq.gz	Fastqsanger.gz

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RNA-seq of LCMV GP33-specific CD8 TCR transgenic cells (P14) primed at the onset versus in the midst of persistent LCMV-Clone 13 viral infection

Project description:Altered CD8 T cell differentiation and functional exhaustion prevent control of chronic virus infection and cancer. Yet, how fate commitment and exhaustion are determined and dynamically modulated throughout persistent infection are unclear. We compared the activation and differentiation of LCMV GP33-specific CD8 TCR transgenic cells (P14) primed at the onset versus in the midst of established persistent LCMV-Clone 13 viral infection. LCMV GP33-specific CD8 TCR transgenic (P14) cells were injected into naïve mice immediately infected with LCMV-Cl13 (Early priming) or into mice that had been infected 21 days earlier with LCMV-Cl13 (Late Priming). Sixty hours post-priming P14 cells were sorted from mice and subjected to RNA seq. We show early primed cells very rapidly exhibit a transcriptional profile of robust activation, effector differentiation and dysfunction, while late primed cells have increased expression of genes involved in memory differentiation and maintenance.

2018-10-09 | GSE105044 | GEO

Expression Data from Memory P14 Tg CD8 T cells after either saline mock-infection, Pichinde Virus Infection (bystander infection) or Pichinde Virus infection with daily treatment with anti-CD122 (clone TM-b1)

Project description:Exposure to inflammatory cytokines driven by bystander cytokines can have profound effects on the function of memory CD8 T cells. Here we transferred a 1-5X10^4 of P14 TCR-tg T cells (specific for gp33-41 of LCMV) on day -1 followed by infection with 2X10^5 PFU of LCMV Armstrong ip to generate memory P14 populations. Mice were rested for >50 days before further challenge. Mice containing memory P14 populations were either mock-infected with saline, infected with 2X10^6 Pichinde Virus ip (no cross-reactivity wtih LCMV gp33-41) or infected with 2X10^6 Pichinde Virus ip together with daily injections of 200 micrograms of anti-CD122 antibody (clone TM-b1). On day 4 following indicated treatments P14s were flow sorted and RNA was extracted from 1X10^6 cells using an RNeasy kit (Qiagen). Each group had 3 biological replicates. Transcriptomes were compared by DAVID analysis (p<0.01, Fold-Change > 1.5) 3 biological replicates per group. Groups included P14 from mock-infected mice, P14 from Pichinde virus infected mice and P14 from Pichinde virus and anti-cd122 treated mice.

2015-09-01 | E-GEOD-69791 | biostudies-arrayexpress

2015-09-01 | GSE69791 | GEO

Expression data from LCMV-infected P14 and Akt transgenic P14 CD8 T cells

Project description:The PI3K/Akt signaling pathway impacts various aspects of CD8 T cell homeostasis, such as effect versus memory cell differentiation, during viral infection. We used microarrays to determine which downstream molecules were affected and what other signaling pathways were interconnected with the Akt pathway by constitutive activation of Akt in LCMV-infected CD8 T cells. Splenocytes from naive P14/WT or P14/Akt mice were stained with anti-CD8 and anti-Ly5.1, and CD8 T cells were sorted using a FACSAria II instrument. Purified Ly5.1+ CD8 T cells from P14/WT or P14/Akt mice were transferred into B6 mice, which were subsequently infected with LCMV Armstrong. At day 8 post infection, splenocytes were stained with anti-CD8, anti-Ly5.1, anti-KLRG1, and anti-CD127. Following staining, short-lived effector cells (SLECs) and memory precursor effector cells (MPECs) were sorted using the FACSAria II instrument; the purity of the sorted cells was >95%. A total of 5 samples were analyzed, including WT naive, WT SLEC, WT MPEC, Akt naive and Akt SLEC.

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Gene expression profile of splenic p14 effector T cells eight days after LCMV infection

Project description:Microarray analyses was employed to determine the gene expression profiles of LCMV-specific p14 CD8+ effector T cells eight days after an acute LCMV Armstrong infection providing a framework to compare and contrast effector function potential of distinct immune cell subsets to CD8+ effector T cells.

2015-06-01 | GSE44410 | GEO

Identification of GP33-specific CD8 T cell clones responding to chronic infection with LCMV-Clone13

Project description:T cells specific for a certain antigen are a heterogeneous population characterized by cells expressing different T Cell Receptors (TCRs). As the TCR determines the avidity of a T cell clone for its cognate antigen, this feature has also a significant impact on the fate of such clone during antigenic challenge. In the context of chronic viral infection, T cells specific for the chronic virus differentiate into exhausted cells with limited functionality. We find that, in the process of exhaustion following infection with LCMV-Clone13, certain clones of CD8 T cells specific for the LCMV immunodominant epitope GP33 are enriched compared to others.

2022-10-23 | GSE210116 | GEO

Longitudinal expression data from CD8+ T cells responding to LCMV-Armstrong or LCMV-Clone 13

Project description:During acute viral infections, naïve CD8+ T cells differentiate into effector CD8+ T cells and, after viral control, into memory CD8+ T cells. Memory CD8+ T cells are highly functional, proliferate rapidly upon reinfection and persist long-term without antigen. In contrast, during chronic infections, CD8+ T cells become “exhausted” and have poor effector function, express multiple inhibitory receptors, possess low proliferative capacity, and cannot persist without antigen. To compare the development of functional memory T cells with poorly functional exhausted T cells, we generated longitudinal transcriptional profiles for each. Naive CD44Lo CD8+ T cells were isolated and sorted from uninfected C57BL/6 mice and H2-Db GP33-specific CD8+ T cells were sorted using MHC-I tetramers at d6, 8, 15, and 30 p.i. with either LCMV Arm or LCMV clone 13. RNA from these CD8+ T cells was processed, amplified, labeled, and hybridized to Affymetrix GeneChip MoGene 1.0 st microarrays

2012-11-23 | E-GEOD-41867 | biostudies-arrayexpress

RNA-seq of P14 CD8 T cells during acute LCMV infection

Project description:We performed RNA-seq, ATAC-seq, and H3K27Ac ChIP-seq on P14 CD8 T cells during acute infection with LCMV Armstrong on days 0 (naïve cells), 9 (memory precursor effector cells (MPEC) and short-lived effector cells (SLECs)), and 40+ (memory cells) post infection.

2021-04-02 | GSE150441 | GEO

ATAC-seq of P14 CD8 T cells during acute LCMV infection

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Early Transient IFN-γ Production-dependent and Independent Mechanisms Underlie the Cross-protectivity of Lung-Resident Memory CD8 T Cells against Respiratory Virus Challenge

Project description:Transcriptome profiling of lung tissues and lung CD8+ TRM during early phase of infection to investigate the mechanism of lung TRM cells during antigen re-exposure within 48hours. After P14 T cell transfer, PR8 infection would not induce P14 TRM cells, while PR8-gp33 would. Comparing the gene expression of lung tissues after LCMV Armstrong challenge at day 30 after PR8 or PR8-gp33 infection would help us understand the function of lung CD8+ TRM cells. Sorted TRM cells from mice challenged with LCMV Armstrong at day 30 after PR8-gp33 infection would reveal the activation mechanism of TRM cells.

2023-10-01 | GSE186762 | GEO

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