Protein Kinase 2 (CK2) Controls CD8+ T-cell Effector and Memory Function during Infection
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ABSTRACT:
PROVIDER: PRJNA734332 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR14703103_1.fastq.gz | Fastqsanger.gz | |||
| SRR14703103_2.fastq.gz | Fastqsanger.gz | |||
| SRR14703104_1.fastq.gz | Fastqsanger.gz | |||
| SRR14703104_2.fastq.gz | Fastqsanger.gz | |||
| SRR14703105_1.fastq.gz | Fastqsanger.gz |
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Project description:Protein kinase 2 (CK2) is a serine/threonine kinase composed of two catalytic subunits (CK2α and/or CK2α') and two regulatory subunits (CK2β). CK2 has been shown to promote cancer progression by regulating the NF-κB, PI3K/AKT/mTOR, JAK/STAT and HIF-1α pathways, and also plays a critical role for immune cell development and function. However, the potential involvement of CK2 in CD8+ T-cell function has not explored. Here, we demonstrate that CK2 protein levels and kinase activity are enhanced upon CD8+ T-cell activation. CK2α deficiency results in impaired CD8+ T-cell activation and proliferation upon TCR stimulation. Furthermore, CK2α is involved in CD8+ T-cell metabolic reprogramming during activation through regulating the AKT/mTOR signaling pathway. Lastly, using a Listeria monocytogenes infection model, we demonstrate that CK2α is required for CD8+ T-cell expansion, maintenance and effector function in both primary and memory immune responses. Taken together, our study implicates CK2 as an important regulator of CD8+ T-cell activation and differentiation both in vitro and in vivo.
2022-06-21 | GSE175941 | GEO
Project description:During a T cell response, naïve CD8 T cells differentiate into effector cells. Subsequently, a subset of effector cells termed memory precursor effector cells (MPECs) further differentiates into functionally mature memory CD8 T cells. The transcriptional network underlying this carefully scripted process is not well understood. Here, we report that the transcription factor FoxO1 plays an integral role in facilitating effector to memory transition and functional maturation of memory CD4 and CD8 T cells. We find that FoxO1 is not required for differentiation of effector cells, but in the absence of FoxO1, memory CD8 T cells displayed features of scenescence and progressive attrition in polyfunctionality, which in turn led to impared recall responses and poor protective immunity. These data suggest that FoxO1 is essential for active maintenance of functional CD8 T cell memory and protective immunity. Under competing conditions in bone marrow Single-cell suspensions from splenocytes of eight samples WT (control) and FoxO1-/- (experimental) LCMV-immune mice were prepared using standard procedures. CD8 T cells were then isoloated using Thy1.2 (CD90.2) (30-H12) microbeads (Miltenyi Biotec). Cells were then stained with anti-CD8, anti-CD44 and Db/NP396 MHC class I tetramer. Activated (CD8+CD44hi), naive (CD8+CD44lo), and virus-specific CD8 T cells were sorted using FACSAria II instrument (BD Biosciences). The purity of the cells was >95%. Total RNA was extracted from the sorted cells by Trizol Reagent. RNA samples were reverse transcribed and Cy3-labeled cDNAs were hyrbidized to Agilent whole Mouse Genome Oligo Microarrays. Fluorscence signals were detected using Agilent's Microarray Scanner system, data was analyzed using the Rosetta Resolver gene expression data analysis system and genes with a fold change < and p-values <0.01 were identified. Microarray data discussed in the paper is focused on virus-specific memory CD8 T cells from samples WT_Tet_2 vs KO_Tet_2.
2013-06-25 | E-GEOD-45673 | biostudies-arrayexpress
Project description:Memory T cells are heterogeneous in terms of their phenotype and functional properties. We investigated the molecular profiles of human CD8 naïve (TN), central memory (TCM), effector memory (TEM), and effector memory RA (TEMRA) T cells using gene expression microarrays and phospho-protein-specific intracellular flow cytometry. We demonstrate that TCM have a gene expression and cytokine signaling signature that lies between that of TN and TEM or TEMRA cells, whereas TEM and TEMRA are closely related. Our data define the molecular basis for the different functional properties of central and effector memory subsets. We show that TEM and TEMRA cells strongly express genes with known importance in CD8 T cell effector function. In contrast, TCM are characterized by high basal and cytokine-induced STAT5 phosphorylation, reflecting their capacity for self-renewal. Altogether, our results distinguish TCM and TEM/TEMRA at the molecular level and are consistent with the concept that TCM represent memory stem cells.
2005-01-01 | E-TABM-40 | biostudies-arrayexpress
Project description:Differentiation of CD8+ T lymphocytes into effector and memory cells is key for an adequate immune response and relies on complex interplay of pathways that convey signals from cell surface to nucleus. In this study, we fractionated four CD8+ T cell subtypes; naïve, recently activated effector, effector and memory cells into membrane, cytosol, soluble nucleus, chromatin-bound and cytoskeleton compartments. Using LC-MS/MS analysis, identified peptides were matched to human peptides/proteins (SwissProt). Compartment fractionation and gel-LC-MS separation identified 2399 proteins in total. Among these 735 were detected in all five, 241 in four, 257 in three, 368 in two and 798 found in only one fraction. Comparison between the two most different subsets, naïve and effector, yielded 146 significantly regulated proteins.
2016-02-29 | MSV000079540 | MassIVE
Project description:Expression profiles of in vitro generated CD8+ central memory (CM) and effector/effector memory (E/EM) T cells on Affymetrix GeneChip Murine Genome U74 Version 2 Set MG-U74A, MG-U74B, and MG-U74C. T cells were generated from female P14 T cell receptor transgenic mice on the C57Bl/6 genetic background.
2007-12-15 | E-GEOD-561 | biostudies-arrayexpress
Project description:Here we implemented a simple dendritic cell (DC)-mediated immunization approach to study the effects of commonly used adjuvants, Toll like receptor (TLR) ligands, on effector CD8 T cell differentiation and memory T cell development. To our surprise, we found that the TLR4 ligand LPS was far more superior to other TLR ligands in generating memory CD8 T cells upon immunization. LPS boosted clonal expansion similar to the other adjuvants, but fewer of the activated CD8 T cells died during contraction, generating a larger pool of memory cells. Intriguingly, monophosphoryl lipid A (MPLA), another TLR4 ligand, enhanced clonal expansion of effector CD8 T cells, but also promoted their terminal differentiation and contraction; thus, fewer memory CD8 T cells formed and MPLA-primed animals were less protected against secondary infection compared to those primed with LPS. Furthermore, gene expression profiling revealed that LPS-primed effector cells displayed a stronger pro-memory gene expression signature, whereas the gene expression profile of MPLA-primed effector cells had aligned closer with terminal effector CD8 T cells. Mice that contain small number of P14 CD8 T cells were immunized with DC-33 either alone or in combination with LPS or MPLA. KLRG1loIL-7Rhi MPECs were purified by FACS sort, and mRNA isolated from MPECs was subjected to whole-genome expression profiling using Illumina MouseWG-6 v2.0 Expression BeadChip.
2014-06-03 | E-GEOD-50764 | biostudies-arrayexpress
Project description:Memory CD8+ T cells are indispensable for maintaining long-term immunity against intracellular pathogens and tumors. Despite their presence in oxygen-deprived tissues of infection sites or tumors, the impact of local oxygen pressure on memory CD8+ T cells has remained largely unclear. We sought to elucidate how oxygen pressure impacted memory CD8+ T cells arising after infection with Listeria monocytogenes-OVA. Our data revealed that reduced oxygen pressure during in vitro culture switched CD8+ T cell metabolism from an OXPHOS to a glycolytic phenotype. Quantitative proteomic analysis showed that limiting oxygen conditions increased the expression of glucose transporters and components of the glycolytic pathway, while decreasing TCA cycle and mitochondrial respiratory chain proteins. The altered CD8+ T cell metabolism did not affect the expansion potential, but enhanced the granzyme B and IFN- production capacity. Memory CD8+ T cells cultured under low oxygen pressure were able to persist long-term in vivo and provided protection against bacterial rechallenge. Taken together, our study indicates that strategies of cellular immune therapy may benefit from reducing oxygen during culture to develop memory CD8+ T cells with superior effector functions .
2022-12-01 | PXD032236 | Pride
Project description:Differentiation of CD8+ T lymphocytes into effector and memory cells is key for an adequate immune response and relies on complex interplay of pathways that convey signals from cell surface to nucleus. In this study, we fractionated four CD8+ T cell subtypes; naïve, recently activated effector, effector and memory cells into membrane, cytosol, soluble nucleus, chromatin-bound and cytoskeleton compartments. Using LC-MS/MS analysis, identified peptides were matched to human peptides/proteins (SwissProt). Compartment fractionation and gel-LC-MS separation identified 2399 proteins in total. Among these 735 were detected in all five, 241 in four, 257 in three, 368 in two and 798 found in only one fraction. Comparison between the two most different subsets, naïve and effector, yielded 146 significantly regulated proteins.
2015-02-04 | PXD001065 | Pride
Project description:To understand the regulation of cytotoxicity by decidual CD8+ T cells (CD8+ dT) at the maternal-fetal interface, gene expression analysis of CCR7-CD45RA- effector-memory CD8+ T cells isolated from peripheral blood of unrelated healthy controls and decidual tissue from first trimester (6-12 weeks) and term (>37 weeks) pregnancy was performed. Furthermore, first trimester decidual effector-memory CD8+ T cells were stimulated with anti-CD3/CD28 in the presence of IL-2 for 12 hours or 72 hours. RNA was isolated and gene expression profiles were generated by employing Affymetrix HG_U133_Plus 2 arrays on the Affymetrix Geneatlas system.
2017-12-19 | E-MTAB-5890 | biostudies-arrayexpress
Project description:Effector cells for adoptive immunotherapy can be generated by in vitro stimulation of naïve or memory subsets of CD8+ T cells. While the characteristics of CD8+ T cell subsets are well defined, the heritable influence of those populations on their effector cell progeny is not well understood. We studied effector cells generated from naïve or central memory CD8+ T cells and found that they retained distinct gene expression signatures and developmental programs. Effector cells derived from central memory cells tended to retain their CD62L+ phenotype, but also to acquire KLRG1, an indicator of cellular senescence. In contrast, the effector cell progeny of naïve cells displayed reduced terminal differentiation, and, following infusion, they displayed greater expansion, cytokine production, and tumor destruction. These data indicate that effector cells retain a gene expression imprint conferred by their naïve or central memory progenitors, and they suggest a strategy for enhancing cancer immunotherapy. Experiment Overall Design: Effector cells were generated from naive or central memory CD8+ T cells. The cells were then rested (unstimulated) or restimulated (stimulated). This experimental design resulted in 4 groups (Naïve-derived/stimulated, Naïve-derived/unstimulated, Central memory-derived/stimulated, Central memory-derived/unstimulated). Three replicates from independent experiments were analyzed.
2009-06-23 | E-GEOD-16522 | biostudies-arrayexpress