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Distinct metabolic programmes established in the thymus control the effector functions of γδ T cell subsets in tumour microenvironments

ABSTRACT: RNA sequencing of PLZF+ and PLZF- γδ T cell subsets from the spleen, inguinal lymph nodes, lungs and adipose tissue for gene expression analysis

ORGANISM(S): Mus musculus

PROVIDER: GSE156782 | GEO | 2020/08/25

REPOSITORIES: GEO

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Distinct metabolic programs established in the thymus control effector functions of γδ T cell subsets in tumor microenvironments.

Project description: Not available

| S-EPMC7610600 | biostudies-literature

Distinct metabolic programmes established in the thymus control the effector functions of γδ T cell subsets in tumour microenvironments

Project description:Distinct metabolic programmes established in the thymus control the effector functions of γδ T cell subsets in tumour microenvironments

| PRJNA659017 | ENA

γδ T cells producing IL-17A regulate adipose Treg homeostasis and thermogenesis

Project description:RNA sequencing of PLZF+ and PLZF- γδ T cell subsets from adipose tissue for gene expression analysis

2018-05-10 | GSE103742 | GEO

Distinct metabolic programs control the effector fate of γδ T cell subsets and their activities in the tumour microenvironment

Project description:Metabolic programming controls immune cell lineages and functions, but little is known about γδ T cell metabolism. Here we found that γδ T cell subsets making either IFN-γ or IL-17 have intrinsically distinct metabolic requirements. Whereas IFN-γ+ γδ T cells were almost exclusively dependent on glycolysis, IL-17+ γδ T cells strongly engaged oxidative metabolism, with increased mitochondrial mass and activity. These distinct metabolic signatures were surprisingly imprinted early during γδ thymic development, and were stably maintained in the periphery and within tumours.

2020-09-28 | GSE150585 | GEO

RNA Sequencing of Fetal and Adult Mature Thymic Vγ1+ γδ T-Cells

Project description:γδ T-cells form an integral arm of the immune system through their rapid and potent effector functions, and are critical players during both protective and destructive immunity. However, the factors that dictate γδ T-cell functional programming in vivo remain to be fully elucidated. Here, we employed RBPJ-inducible and KN6-transgenic mice to assess the roles of ontogenic timing, T-cell receptor (TCR) signal strength, and Notch signaling in the generation of γδ T-cell functional subsets in vivo. We found skewed generation of Vγ1+ cells toward the PLZF+ γδ T-cell lineage at the fetal stage. Similarly, generation of interleukin (IL)-17 producing γδ T-cells was favored during, although not exclusive to, the fetal stage. Strong TCR signals, in conjunction with Notch, were necessary for the generation of IL-4 producing γδ T-cells. Conversely, weak TCR signals were amenable for the generation of IL-17 producing γδ T-cells, which was Notch-independent. Additionally and surprisingly, Notch signaling was also dispensable for peripheral γδ T-cell IL-17 production. Thus, our results precisely defined the roles of ontogenic timing, TCR signal strength, and Notch signaling in γδ T-cell functional programming in vivo.

2021-05-01 | GSE166086 | GEO

TCR-Vγδ usage distinguishes pro- and anti-tumor intestinal γδ T cell subsets

Project description:γδ T cells represent a substantial fraction of intestinal lymphocytes at homeostasis, but also constitute a major lymphocyte population infiltrating colorectal cancers (CRC), albeit their role in CRC remains unclear. Using human CRC samples and murine CRC models, we found that most γδ T cells in pre- or non-tumor colon exhibit cytotoxic markers while tumor-infiltrating γδ T cells express a pro-tumorigenic profile. These contrasting T cell profiles were associated with distinct TCR-Vγδ gene-usage in both mice and humans. Complementary intersectional genetics and antibody-dependent strategies targeting murine γδ T cells enriched in the epithelium at steady state led to heightened tumor development, while targeting γδ subsets that accumulate during CRC resulted in reduced tumor growth. Our results uncover pro- and anti-tumor roles for γδ T cell subsets.

2022-06-14 | GSE205720 | GEO

Expression data from mouse small intestinal γδ intraepithelial lymphocytes

Project description:The mammalian gastrointestinal tract harbors thousands of bacterial species that include symbionts as well as potential pathogens. The immune responses that limit access of these bacteria to underlying tissue remain poorly defined. In this study, we used microarrays to uncover the transcriptional responses that occur in small intestinal γδ intraepithelial lymphocytes following bacterial challenge. γδ intraepithelial lymphocytes (γδ IEL) were isolated by flow cytometry from the small intestines of germ-free mice, or from age- and sex-matched conventionally-raised counterparts. We extracted RNAs from these purified γδ IEL for analysis on Affymetrix DNA microarrays. The mice were all >8 weeks in age, and each sample represents a pool of RNAs from 5-8 mice.

2011-04-06 | E-GEOD-28437 | biostudies-arrayexpress

Single-Cell RNA Sequencing of Thymic KN6 γδ T-Cells Modulated by TCR Signal Strength and Notch Signaling

2021-05-01 | GSE165908 | GEO

γδ-T cells and αβ-TCR transduced γδ-T cells

Project description:RNA expression of unstimulated γδ-T cells,γδ-TCR-stimulated γδ-T cells, unstimulated αβ-TCR transduced γδ-T cells and αβ-TCR-stimulated αβ-TCR transduced γδ-T cells.

2023-09-07 | GSE216880 | GEO

The human fetal thymus generates effector invariant γδ T cells in a Lin28b-dependent manner

Project description:In the mouse thymus, invariant γδ T cells are generated at well-defined times during development and acquire effector functions before exiting the thymus. However, whether such thymic programming can occur in human is not known. Here we analyzed human fetal and post-natal γδ thymocytes and investigated the role of hematopoietic-stem-and-precursor-cells (HSPC) in the generation of human γδ T cells. Unlike post-natal γδ thymocytes, fetal γδ thymocytes were functionally programmed (e.g. IFNγ, granzymes), expressed low levels of terminal-deoxynucleotidyl-transferase (TdT) and were highly enriched for invariant/public germline-encoded CDR3 sequences (TRGV8-TRJP1-CATWDTTGWFKIF, TRDV2-TRDD3-CACDTGGY and TRDV1-TRDD3-CALGELGD, previously shown to be expanded in cytomegalovirus infection) composed of short-homology-repeat-containing gene segments. Furthermore, these unique characteristics were due to an intrinsic property of fetal HSPC caused by high expression of the RNA-binding protein Lin28b. In conclusion, our data indicate that the human fetal thymus generates, in a HSPC/Lin28b-dependent manner, invariant γδ T cells with programmed effector functions.

2019-11-21 | GSE128163 | GEO

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