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Gene expression profile of TCR Vdelta1 positive gammadelta T cells expressed CD161

ABSTRACT: To elucidate the difference between CD161-negative TCR Vdelta1 and CD161-positive TCR Vdelta1 cells, we performed GeneChip analysis of these two types of cells in peripheral blood mononuclear cells from healthy donors. Such analysis identified 192 genes that were expressed at two-fold or higher levels on CD161-positive TCR Vdelta1 cells than on CD161-negative TCR Vdelta1 cells. Expression of three genes (CCL3, CCL4 and CD161) from this signature was quantified in the same RNA samples by real-time PCR.

ORGANISM(S): Homo sapiens

PROVIDER: GSE43402 | GEO | 2014/01/09

SECONDARY ACCESSION(S): PRJNA187526

REPOSITORIES: GEO

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Gene expression profile of TCR Vdelta1 positive gammadelta T cells expressed CD161

Project description:To elucidate the difference between CD161-negative TCR Vdelta1 and CD161-positive TCR Vdelta1 cells, we performed GeneChip analysis of these two types of cells in peripheral blood mononuclear cells from healthy donors. Such analysis identified 192 genes that were expressed at two-fold or higher levels on CD161-positive TCR Vdelta1 cells than on CD161-negative TCR Vdelta1 cells. Expression of three genes (CCL3, CCL4 and CD161) from this signature was quantified in the same RNA samples by real-time PCR. CD161-negative and CD161-positive TCR Vdelta1cells of three healthy volunteers were isolated from freshly peripheral blood mononuclear cells.

2014-01-09 | E-GEOD-43402 | biostudies-arrayexpress

Expression data from human cord blood CD161++/CD161+/CD161- CD8+ T cell subsets

Project description:We used microarray to compare gene expression between CD161++/CD161+/CD161-CD8+ T cells from human cord blood. Lymphocytes from freshly obtained human cord blood samples were isolated by Ficoll density centrifugation. CD8+ T cells were purified by negative selection using magnetic beads and subsequently labelled with fluorescent antibodies prior to sorting using MoFlo MLS cell sorter (Dako).

2012-01-25 | E-GEOD-33424 | biostudies-arrayexpress

Expression data from human cord blood CD161++/CD161+/CD161- CD8+ T cell subsets

Project description:We used microarray to compare gene expression between CD161++/CD161+/CD161-CD8+ T cells from human cord blood.

2012-01-25 | GSE33424 | GEO

Expression data from healthy human CD161++CD8aa and CD161++CD8ab T cells

Project description:We used microarrays to compare gene expression between healthy human CD161++CD8aa and CD161++CD8ab T cells.

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Expression data from healthy human CD161++CD8aa and CD161++CD8ab T cells

Project description:We used microarrays to compare gene expression between healthy human CD161++CD8aa and CD161++CD8ab T cells. We sorted freshly obtained peripheral blood mononucleocytes from healthy controls by first using magnetic beads to negatively select for CD8a+ T cells, fluorescently labelling isolated cells with antibodies and subsequent sorting using MoFlow MLS cell sorter (DAKO). Sorted samples were snap frozen. RNA was later extracted from the sorted populations prior to hybridization to Affymetrix arrays.

2012-01-25 | E-GEOD-33374 | biostudies-arrayexpress

CD161 defines a distinct subset of pro-inflammatory NK cells that are present in the inflamed gut

Project description:CD161 is a C-type lectin like receptor expressed on the majority of Natural Killer (NK) cells, however, the significance of CD161 expression on NK cells has not been comprehensively investigated. We used microarrays to compare gene expression between healthy human CD161+ and CD161- NK cells.

2017-05-10 | GSE98702 | GEO

CD161+ Tconv and Treg share transcriptome and display a migratory phenotype which is modified at the inflamed site

Project description:Regulatory T cells (Treg) are a cornerstone of immune regulation. Recent evidence indicates that human Treg show plasticity in specific settings. A subpopulation of Treg expressing CD161, a marker associated with T helper (Th)17 cells, have T effector -like characteristics and are enriched at sites of autoimmune inflammation. Here we used RNAseq to confirm the effector-like signature of CD161+ Treg and demonstrated a shared transcriptional signature between CD161+ Treg and CD161+ conventional T cells (Tconv). Pathway analysis suggested that CD161+ T cells have a migratory phenotype, expressing high levels of CCR9 and integrin α4β7, markers associated with gut homing. In response to all-trans retinoic acid, CD161+ T cells expressed higher levels of CCR9 and integrin α4β7 than CD161- T cells. Our data suggest that blood CD161+ T cells may have adopted gut homing properties upon retinoic acid exposure. In contrast to their peripheral counterparts, CD161+ T cells from the site of autoimmune arthritis have a diminished gut homing phenotype and blunted response to retinoic acid. In health, the TCRβ repertoires of CD161+ and CD161- T cells showed limited overlap whereas there is clear overlap in T cell clones from synovial fluid of autoimmune arthritis patients. We therefore propose that CD161+ and CD161- T cells are largely distinct populations in the healthy immune system but that the inflamed site creates an environment where CD161 levels in T cells can be altered, potentially contributing to disease pathogenesis.

2017-03-27 | GSE86452 | GEO

Targeting of the CD161 Inhibitory Receptor Enhances T cell-mediated Immunity Against Hematological Malignancies

Project description:The CD161 inhibitory receptor is highly upregulated by tumor-infiltrating T cells in a number of human solid tumor types, and its ligand CLEC2D is expressed by both tumor cells and infiltrating myeloid cells. Here we assessed the role of the CD161 receptor in hematological malignancies. Systematic analysis of CLEC2D expression using the Cancer Cell Line Encyclopedia (CCLE) revealed that CLEC2D mRNA was most abundant in hematological malignancies, including B cell and T cell lymphomas as well as lymphocytic and myelogenous leukemias. CLEC2D protein was detected by flow cytometry on a panel of cell lines representing a diverse set of hematological malignancies. We therefore used yeast display to generate a panel of high-affinity, fully human CD161 monoclonal antibodies (mAbs) that blocked CLEC2D binding. These mAbs were specific for CD161 and had a similar affinity for human and non-human primate CD161, a property relevant for clinical translation. A high-affinity CD161 mAb enhanced key aspects of T cell function, including cytotoxicity, cytokine production and proliferation, against cell lines originating from patients with AML, DLBCL and Burkitt lymphoma. In humanized mouse models, this CD161 mAb enhanced T cell-mediated immunity resulting in a significant survival benefit. ScRNA-seq data demonstrated that CD161 mAb treatment enhanced expression of cytotoxicity genes by CD4 T cells as well as a tissue-resident memory program by CD4 and CD8 T cells that is associated with favorable survival outcomes in multiple human cancer types. These fully human monoclonal antibodies thus represent potential immunotherapy agents for hematological malignancies.

2024-01-02 | GSE220200 | GEO

CD161 defines a transcriptional and functional phenotype shared across distinct human T cell lineages (CD 8)

Project description:T lymphocytes are conventionally divided into subsets based upon expression of co-receptors, cytokines and surface molecules. By mRNA microarray analysis, T lymphocytes that express the C-type lectin CD161 were identified to share a transcriptional profile, which led to the identification of an innate function across these previously defined subsets, including CD8, CD4 and TCRgd T cells. Gene expression of sort purified, resting CD161++, CD161+ and CD161- CD8+ T cells from peripheral blood was measured in 4 healthy donors.

2014-10-07 | E-GEOD-62096 | biostudies-arrayexpress

CD161 defines a transcriptional and functional phenotype shared across distinct human T cell lineages (CD4)

Project description:T lymphocytes are conventionally divided into subsets based upon expression of co-receptors, cytokines and surface molecules. By mRNA microarray analysis, T lymphocytes that express the C-type lectin CD161 were identified to share a transcriptional profile, which led to the identification of an innate function across these previously defined subsets, including CD8, CD4 and TCRgd T cells. Gene expression of magnetically enriched, resting CD161+ and CD161- CD4+ T cells from peripheral blood was measured in 3 healthy donors.

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