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RNA Sequencing of WT, RAG2-KO, and RAG2-KO TCRbeta-Transduced CD4+CD8+ T-Cells Derived From Human Embryonic Stem Cells

ABSTRACT: RNA Sequencing of WT, RAG2-KO, and RAG2-KO TCRbeta-Transduced CD4+CD8+ T-Cells Derived From Human Embryonic Stem Cells

PROVIDER: PRJNA689786 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13360786_1.fastq.gz	Fastqsanger.gz
	SRR13360786_2.fastq.gz	Fastqsanger.gz
	SRR13360787_1.fastq.gz	Fastqsanger.gz
	SRR13360787_2.fastq.gz	Fastqsanger.gz
	SRR13360788_1.fastq.gz	Fastqsanger.gz

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RNA Sequencing of WT, RAG2-KO, and RAG2-KO TCRbeta-Transduced CD4+CD8+ T-Cells Derived From Human Embryonic Stem Cells

Project description:T-cell development is predicated on the successful rearrangement of the T-cell receptor (TCR) gene loci, which encode for antigen-specific receptors that enable an immune response. Recombination Activating Gene (RAG) 2 is required for TCR gene rearrangements, which occur during specific stages of T-cell development. Here, we differentiated human pluripotent stem cells with a CRISPR/Cas9-directed deletion of the RAG2 gene (RAG2-KO) to elucidate the requirement for the TCRb chain in mediating b-selection during human T-cell development in vitro. In stark contrast to what is seen in mice, human RAG2-KO T-lineage progenitors progressed to the CD4+CD8+ double-positive (DP) stage in the absence of TCRb rearrangements. Nevertheless, RAG2-KO DPs retrovirally-transduced to ectopically express a rearranged TCRb chain showed increased survival and proliferation as compared to control-transduced RAG2-KO DPs. Furthermore, transcriptomic analysis showed that TCRb-transduced and control-transduced RAG2-KO DPs differed in gene pathways related to survival and proliferation. Our results provide new insights as to the distinct requirement for the TCRb chain during human T-cell development.

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Transcription profiling of mouse SKG FR4-CD4+ cells and age-matched BALB/c FR4-CD4+ cells, and between IFN-g-/- CD4+ cells transferred to RAG2-/- mice and IL-6-/- CD4+ T cells transferred to IL-6-/- RAG2-/- mice

Project description:Th17 cells are enriched by sorting FR4-CD4+ T cells from SKG mice. A large number of Th17 cells also develop spontaneously when CD4+ T cells from IFN-g-deficient (IFN-g-/-) BALB/c mice are transferred to T cell-deficient RAG2-deficient (RAG2-/-) mice and subjected to homeostatic proliferation, whereas they fail to develop in similar transfer of IL-6-deficient (IL-6-/-) CD4+ T cells to IL-6-/- RAG2-/- mice. To explore the functional molecules specifically expressed by Th17 cells, we conducted Gene Microarray analysis between 10-month-old SKG FR4-CD4+ cells and age-matched BALB/c FR4-CD4+ cells, and between IFN-g-/- CD4+ cells transferred to RAG2-/- mice and IL-6-/- CD4+ T cells transferred to IL-6-/- RAG2-/- mice. The analysis revealed that 1,556 and 115 genes were up-regulated in 10-month-old SKG FR4-CD4+ and IFN-g-/- CD4+ T cells after homeostatic proliferation, respectively, with 29 genes shared by the two groups of genes. The 29 genes included those encoding cytokines, chemokines, and their receptors, such as IL-1 receptor type1 (IL-1R1), IL-17, IL-22, IL-21, CCR6, and CCL20. Experiment Overall Design: We conducted Gene Microarray analysis between 10-month-old SKG FR4-CD4+ cells and age-matched BALB/c FR4-CD4+ cells, and between IFN-g-/- CD4+ cells transferred to RAG2-/- mice and IL-6-/- CD4+ T cells transferred to IL-6-/- RAG2-/- mice using GeneChip Mouse Genome 430 2.0 Array (Affymetrix). Each gruop has three replicates.

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Profiling of transcripts expression in Rag2 KO and wild type mice spleen by BeadChip array analysis

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Project description:Purpose: miRNAs are important fators that are involved in the regulation of at least one third of the total human genes and are involved in the regulation of different biological processes. The purpose of the study was to investigate the differential expression pattern of miRNAs in Rag2 KO mice spleen compared to its wild type counterpart. Methods: In this study, we have excised the spleen tissues from three Rag2 KO mice and three wild type mice, and then RNA samples were prepared with the spleen tissues for the analysis of miRNAs profiles using the Affymetrix Genechip miRNA 4.0 arrays. The Affymetrix Genechip miRNA 4.0 array offers an updated content without compromising the high performance as the previous-generation arrays, it also provides a comprehensive coverage that is designed to interrogate all mature miRNA sequences in miRBase Release 20, as well as an easily correlate miRNA results having analysis files contain host gene ID, predicted and validated miRNA target genes, and clustered miRNA information. Result: The miRNAs expression microarray analysis showed that many miRNAs have been expressed differentially between Rag2 KO and wild type mice spleen. These miRNAs might be involved in the different biological and physiological processes including immune regulations. Conclusion: miRNAs might be an active player during theprocess of immune regulation.

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WT and NLRP6 KO CD103+ and CD103- B cell expression

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