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Examining the role of murine norovirus (MNV)-infection on intraepithelial lymphocytes (IELs).

ABSTRACT: Examining the role of murine norovirus (MNV)-infection on intraepithelial lymphocytes (IELs).

PROVIDER: PRJNA842399 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19403360.fastq.gz	Fastqsanger.gz
	SRR19403361.fastq.gz	Fastqsanger.gz
	SRR19403362.fastq.gz	Fastqsanger.gz
	SRR19403363.fastq.gz	Fastqsanger.gz
	SRR19403364.fastq.gz	Fastqsanger.gz

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Similar Datasets

Examining the role of murine norovirus (MNV)-infection on intraepithelial lymphocytes (IELs).

Project description:We examined how MNV-infection affects the population and function of IELs in vivo.

2022-07-01 | GSE204822 | GEO

Gene expression assessed by genome wide hybridization bead array in intraepithelial lymphocytes (IELs) isolated from small intestinal biopsies of celiac disease patients with active disease and clinical controls

Project description:Analysis of role of small intestinal intraepithelial lymphocytes (IELs) in the immunopathology of celiac disease

2017-08-24 | GSE102993 | GEO

Gene expression signatures for CD8αβ+ intraepithelial lymphocytes and CD8αβ+ splenocytes.

Project description:CD8αβ+ intraepithelial lymphocytes (IELs) are a subset of “effector-memory-like” T cells scattered along the intestinal epithelium. To investigate if CD8αβ+ IEL can function in ways other than the conventional cytotoxic effect of CD8αβ+ T cells,CD8αβ+ IELs were compared with CD8αβ+ splenocytes (SPL) by RNA-seq. We used microarrays to identify new functions of CD8αβ+ IELs .

2018-05-30 | GSE105061 | GEO

Characterization of the chemokine response of RAW264.7 cells to infection by murine norovirus

Project description:RAW264.7 macrophages infected with MNV-1 and mock infected gene expression measured by microarray. To be published in Waugh, E. Chen, A. Baird, M. Fleming, S. Brown, C.M. and V K. Ward (2014) Characterization of the chemokine response of RAW264.7 cells to infection by murine norovirus. Virus Genes Four Samples, two mock and two MNV-1 infected.

2013-12-22 | E-GEOD-50093 | biostudies-arrayexpress

Genome-wide maps of chromatin state in mouse small intestinal intraepithelial lymphocytes.

Project description:We performed CUT&Tag-Seq against histone H3K27me3 in mouse small intestinal TCRβ+CD8αα+ intraepithelial lymphocytes (IELs) of wild-type mice to analyze epigenetic modifications.

2022-08-02 | GSE185798 | GEO

Kdm6b is required for the maturation and function of intestinal TCRβ+CD8αα+ intraepithelial lymphocytes

Project description:To under the role of Kdm6b in the regulation of intestinal TCRβ+CD8αα+ intraepithelial lymphocytes (IELs), Kdm6b was conditionally deleted in mouse T cells. Small intestinal TCRβ+CD8αα+ IELs were sorted by flow cytometry and RNA-seq was conducted to identify the differentially expressed genes.

2022-08-02 | GSE154444 | GEO

Effects of the glucagon-like 1 receptor agonist exendin-4 on activated gut intraepithelial lymphocytes

Project description:Gut intraepithelial lymphocytes (IELs) are one of the few immune cell populations in the body that expresses glucagon-like 1 receptors (GLP-1R). To test the potential effects of GLP-1 on gut IEL function, we performed bulk RNA-seq on gut IELs isolated from C57BL/6J mice treated with anti-CD3 and with or without exendin-4 for 3 hours.

2022-08-29 | GSE202453 | GEO

INTERLEUKIN 15-DEPENDENT T CELL-LIKE INNATE INTRAEPITHELIAL LYMPHOCYTES DEVELOP IN THE INTESTINE AND TRANSFORM INTO LYMPHOMAS IN CELIAC DISEASE

Project description:The nature of gut intraepithelial lymphocytes lacking antigen receptors remains controversial. Herein we showed that, in humans and in mice, innate intestinal intraepithelial lymphocytes expressing intracellular CD3 (iCD3+ innate IELs) differentiate along an Id2 transcription factor (TF)-independent pathway in response to TF NOTCH1, interleukin 15 (IL-15) and Granzyme B signals. In NOTCH1-activated human hematopoietic precursors, IL-15 induced Granzyme B, which cleaved NOTCH1 into a peptide lacking transcriptional activity. As a result, NOTCH1 target genes indispensable for T cell differentiation were silenced and precursors were reprogrammed into innate cells with T cell marks including intracellular CD3 and T cell rearrangements. This pathway was operational in vivo in the mouse gut and led to the local differentiation of iCD3+ innate IELs from a bone marrow-derived precursor. In a subset of celiac patients, iCD3+ innate IELs with gain-of-function mutations in Janus kinase 1 or Signal transducer and activator of transcription 3 displayed enhanced response to IL-15 and acquired a selective advantage that favored clonal expansion and transformation into lymphoma. Overall we characterized gut T cell-like innate IELs, deciphered their pathway of differentiation, and showed their malignant transformation in celiac disease.

2016-11-23 | E-MTAB-4960 | biostudies-arrayexpress

Heterogeneity of CD8αα intraepithelial lymphocytes is transcriptionally conserved between TCRαβ and TCRγδ cells

Project description:Intestinal intraepithelial lymphocytes (IELs) are a versatile population of immune cells with both effector and regulatory roles in gut immunity. Although this functional diversity is thought to arise from distinct IEL subpopulations, the heterogeneity of TCRαβ+ and TCRγδ+ IELs have not been well-characterized. Here, we sorted small intestinal IELs from Vil1 Cre+ R26 ZsGreen+ mice into four groups based on expression of either TCR or TCR and fluorescence intensity of ZsGreen and performed scRNAseq. We identified CD8αα+ T cell subsets with memory-like (Tcf7⁺) and effector-like (Prdm1⁺) profiles in both TCRαβ+ and TCRγδ+ IELs. Using CD160 and CD122 as markers of memory-like and effector-like cells, respectively, we found that while effector-like cells dominated the small intestine, memory-like IELs were more prevalent in the large intestine, suggesting a functional specialization of immune responses along the gut. Further transcriptional analysis revealed shared profiles between TCRαβ+ and TCRγδ+ small intestinal IEL subsets, suggesting conserved functional roles across these populations. Finally, our analysis indicated that TCRαβ+ memory-like IELs arise from Tcf7⁺ double-negative (DN) precursors, and that effector-like IELs subsequently differentiate from the memory-like population. In contrast, TCRγδ+ IELs appear to originate from two distinct precursor populations, one expressing Tcf7 and the other Zeb2, indicating the presence of parallel developmental pathways within this lineage. Overall, our findings reveal that both TCRαβ+ and TCRγδ+ cells contain memory-like and effector-like subsets, which may contribute to the functional heterogeneity of IELs.

2025-08-27 | GSE284856 | GEO

T cell receptor is required for differentiation but not maintenance of intestinal CD4+ intraepithelial lymphocytes

Project description:The gut epithelium is populated by intraepithelial lymphocytes (IELs), a heterogeneous T cell population with cytotoxic and regulatory properties, which can be imprinted on CD4+ T cells at the epithelium. However, the role of the T cell receptor (TCR) in this process remains unclear. Single-cell transcriptomic analyses revealed distinct clonal expansions between cell states, with CD4-IELs being one of the least diverse populations. Conditional deletion of TCR on differentiating CD4+ T cells or of MHCII on intestinal epithelial cells prevented CD4-IEL differentiation. However, TCR ablation on differentiated CD4-IELs, or long-term cognate antigen withdraw, did not affect their maintenance. TCR re-engaging of antigen-specific CD4-IELs during Listeria monocytogenes infection did not alter their state but correlated with reduced bacteria invasion. Thus, local antigen recognition is an essential signal for differentiation of T cells at the epithelium but differentiated CD4-IELs are able to preserve an effector program in the absence of TCR signaling.

2020-10-02 | GSE157453 | GEO

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