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Gene expression in murine CD8+ T cells treated with leukemia extracellular vesicles

ABSTRACT: mRNA profiles of CD8+ T cells from 8-week-old wild-type (Foxp3 YFP/cre) mice treated with control or leukemic sEV were generated by 3'-sequencing, in triplicate.

ORGANISM(S): Mus musculus

PROVIDER: GSE190789 | GEO | 2022/08/31

REPOSITORIES: GEO

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Gene expression analysis in murine lymphocyte subsets incubated with control or leukemia-derived extracellular vesicles

Project description:mRNA profiles of Treg, CD4+, CD8+, CD19+ splenic cells from 8-week-old Foxp3 YFP/cre mice incubated with control (WT) or leukemic (TCL1) extracellular vesicles (EV) were analyzed in triplicate.

2022-08-31 | GSE188898 | GEO

Gene expression analysis in lymphocyte subsets from mice injected with control- or leukemia-derived extracellular vesicles

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Gene expression in murine T cells from Ebi3-WT or Ebi3-KO mice

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The changes of miRNAs in plasma small extracellular vesicles (sEV) isolated from 8-week diabetic rats compared with control animals

Project description:Compared with plasma sEV (Con-sEV) from control rats, plasma sEV (DM-sEV) from 8-week diabetic rats significantly induced cardiomyocyte apoptosis as evidenced by increased percentage of apoptotic cells and activity of pro-apoptotic protein caspase 3. The proapoptotic effect of DM-sEV was blunted by RNase but not proteinase K, suggesting that DM-sEV exerted the cardiotoxic effects mainly through their contained RNAs. Increasing evidence suggests that miRNAs are the most important molecules by which sEV regulate recipient cell function. To identify the sEV-containing specific miRNAs responsible for the effects, Con-sEV and DM-sEV were subjected to miRNA sequencing.

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PDK1 is required for maintenance of CD4+ FoxP3+ regulatory T cell function [heterozygous]

Project description:The goal of this study was to determine the effect of Treg-specific Pdpk1 (PDK1) deletion on the transcriptome of Treg cells in the absence of inflammatory conditions. CD4+ YFP+ Treg cells from spleens and peripheral lymph nodes of Cre-heterozygous Foxp3 YFP-Cre/+ Pdpk1 +/+ (WT) and Foxp3 YFP-Cre/+ Pdpk1 FL/FL (KO) were sorted, RNA was isolated and RNA-seq libraries were constructed and sequenced by Hiseq2500. Note companion data set using hemizygous Cre (induces spontaneous inflammation).

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Project description:We profiled the transcriptome of visceral adipose tissue from Foxp3.YFP-Cre Bmal1WT or Foxp3.YFP-Cre bmal1flox mice after 16 weeks of high-fat diet. We found that adipose tissue with Bmal1-deficient Tregs showed an increased enrichment of inflammatory pathways and a loss of metabolic pathways after high-fat diet feeding.

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PDK1 is required for maintenance of CD4+ FoxP3+ regulatory T cell function [Hemizygous]

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Gene expression in murine leukemic B cells treated with leukemic extracellular vesicles

Project description:mRNA profiles of murine leukemic B cells (Eu-TCL1 mice) treated with extracellular vesicles were generated by 3'-sequencing, in triplicate.

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RNA-seq analysis of transcriptomes of WT and Foxp3∆2 Treg cells in spleen and LNs

Project description:We performed RNA-seq analysis of Tregs isolated from Foxp3RFP/∆2Foxp3∆CNS1-cre-Thy1.1Rosa26LSL-YFP female mice. CD4+YFP+RFP+ (WT Tregs) and CD4+YFP+RFP- (Foxp3∆2 Tregs) cells were sorted from lymph nodes and spleen to a typical purity of >95% We detected 638 differentially expressed genes (DEGs, FDR < 0.05) between Foxp3∆2 and WT Tregs

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Small extracellular vesicles are key regulators of non-cell autonomous intercellular communication in senescence via the interferon protein, IFITM3

Project description:Senescence is a cellular phenotype present in health and disease, characterized by a stable cell cycle arrest and an inflammatory response, denominated senescence-associated secretory phenotype (SASP). The SASP is important in influencing the behaviour of neighbouring cells and altering the microenvironment; yet, this role has been mainly attributed to soluble factors. Here, we show that both the soluble factors in addition to small extracellular vesicles (sEV) are capable of transmitting paracrine senescence to nearby cells. Analysis of individual cells internalizing sEV, using a Cre-reporter system, show a positive correlation between sEV uptake and senescence activation. Interestingly, we find an increase in the number of multivesicular bodies during senescence in vivo. sEV protein characterization by mass spectrometry (MS) followed by a functional siRNA screen identify the Interferon Induced Transmembrane Protein 3 (IFITM3) as partially responsible for transmitting senescence to normal cells. Altogether, we found that sEV contribute to paracrine senescence.

2019-05-21 | GSE131503 | GEO

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