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RNA-seq of thymic DP cells from KANSL1-deficient mice and their control mice.

ABSTRACT: We report the application of RNA-sequence in WT and Kansl1-deleted mice DP thymocytes with 3 biological replicates.

ORGANISM(S): Mus musculus

PROVIDER: GSE311713 | GEO | 2026/04/01

REPOSITORIES: GEO

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RNA-seq of thymic DP cells from KANSL1-deficient mice and their control mice.

Project description:RNA-seq of thymic DP cells from KANSL1-deficient mice and their control mice.

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RNA Sequencing Analysis of Gene Expression Profiles in WT and CIC-deficient DP Thymocytes

Project description:Purpose : The goal of this study is to compare the gene expression profiles between wild-type (WT) and CIC-deficient DP thymocytes to understand the molecular mechanisms of CIC regulation of T cell development, especially in DP thymocytes. Methods : DP thymocytes (lin-CD4+CD8+TCRlo (Lineage : CD11b, CD11c, CD19, NK1.1, Gr-1, γδTCR, and TER119)) from thymus were sorted by a MoFlo-XDP (Beckman Coulter). Total RNA was extracted using RiboEX (GeneAll) according to the manufacturer's instructions. The library for mRNA sequencing was generated using the TruSeq Stranded Total RNA LT Sample Prep Kit (Illumina) and sequencing was performed with NovaSeq 6000 (Illumina). Results : Trimmed reads were mapped to the mouse reference genome (mm10 RefSeq) with HISAT2, and the transcripts were assembled using StringTie. A total of 482 differentially expressed genes (DEGs; fold change > 2 and P-value < 0.05) were generated using edgeR. The 263 upregulated genes included known CIC target genes such as Etv1, Etv4, Etv5, Spry4, Spred1, Dusp4, and Dusp6. Conclusions : Our study represents the first comparative analysis of DP thymocytes from WT and hematopoietic lineage cell-specific Cic deficient mice. We concluded that CIC deficiency leads to impaired positive and negative selection, and TCR signaling in DP cells. The attenuation of TCR signaling is caused by derepression of CIC target genes involved in dephosphorylation of ERK.

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