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Gene expression profile of chronically activated CD4+ T cells from cancer patients

ABSTRACT: Gene expression profile of chronically activated CD4+ T cells from cancer patients

PROVIDER: PRJNA453410 | ENA |

REPOSITORIES: ENA

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Gene expression profile of chronically activated CD4+ T cells from cancer patients

Project description:CD4+ T cells as mediators of antitumor responses are beginning to be appreciated. Our team demonstrated that chronically activated CD4+ T cells (chCD4+ T cells) were expanded in the blood of cancer patients and their expansion is correlated with tumor regression. Here we characterized the gene expression profile of this population with therapeutic potential.

2018-04-26 | GSE113625 | GEO

Multiomic profiling of chronically activated CD4+ T cells identifies drivers of exhaustion and metabolic reprogramming

Project description:T-cell exhaustion occurs when T cells are chronically activated, usually in the context of cancer or chronic infection. Exhausted T cells lose effector functions, upregulate inhibitory receptors, and lose proliferation ability. Understanding the mechanisms of T-cell exhaustion is important as it has critical clinical applications, such as checkpoint blockade therapy. CD4+ T cells are understudied in the context of exhaustion, and no large-scale multiomic datasets containing proteomics, phosphoproteomics, or metabolomics exist. We therefor performed a multiomic experiment to profile this cell state using a time course analysis to also capture progression.

2024-11-28 | PXD057703 | Pride

MicroRNAs profile in Human Circulating CD4+ T Cells in Patients with Atherosclerosis Obliterans：Healthy persons vs. patients

Project description:MicroRNAs profile of circulating CD4+ T Cells in Aged Patients with Atherosclerosis Obliterans comparing healthy persons without symptoms or lesion associated with atherosclerosis.

2022-02-15 | GSE196698 | GEO

Gene expression profile of myosin-specific CD4+ T-cells activated after myocardial infarction

Project description:Gene expression profile of myosin-specific CD4+ T-cells activated after myocardial infarction

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MicroRNAs profile in Human Circulating CD4+ T Cells in Patients with Atherosclerosis Obliterans：Healthy persons vs. patients

Project description:MicroRNAs profile in Human Circulating CD4+ T Cells in Patients with Atherosclerosis Obliterans：Healthy persons vs. patients

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miRNA profiling of CD4+ T cells in chronically infected HIV-1 patients, LTNPs and healthy controls

Project description:We extracted total RNA from CD4+ T cells from 3 patient groups: chronic HIV-1 patients (CHI), long term non-progressors (LTNPs) and healthy controls (HC). Array results show that a large number of miRNAs are altered in HIV-1 infected patients compared to HC. Most of the differentially expressed miRNAs are down-regulated but there are some up-regulated miRNAs. A particular family of miRNAs which appear to be downregulated in HIV-1 infected patients is the let-7 family of miRNAs. In this study, we have included 8 healthy controls, 7 LTNPs and 7 CHI patients. We extracted RNA from magnetically separated CD4+ T cells (separated from peripheral blood mononuclear cells) and ran them on an Agilent miRNA array.

2012-05-21 | E-GEOD-24022 | biostudies-arrayexpress

Gene expression profile of myosin-specific CD4+ T-cells activated after myocardial infarction

Project description:Pathological expansion of self-reactive T cells is a hallmark of autoimmune diseases. Notwith-standing, T cell autoreactivity can also benefit self-maintenance and foster tissue repair. Herein, we investigated whether heart-specific T cells exert salutary or detrimental effects in the context of the post myocardial infarction (MI) healing process in mice, and whether the findings can be translated to humans. Transferred cardiac-myosin-specific CD4+ T cells (TCR-M) selectively accumulate in the myocardium and mediastinal lymph nodes (med-LNs) of infarcted mice. TCR-M cells activated in the MI-context acquire a Foxp3+ regulatory phenotype, exhibit a distinct gene expression profile enriched with growth factors, and promote cardioprotection. Massive parallel sequencing of T cell receptors revealed that CD4+ T cells infiltrating the infarcted myo-cardium display a unique repertoire signature with skewed diversity and dominated by a limited set of expanded clones - hallmarks of antigen-specific responses. CD4+ Foxp3+ cells were also detected in myocardial biopsies obtained from patients who suffered MI, especially in associa-tion with the granulation tissue (i.e., healing phase). Noninvasive positron emission tomogra-phy/computed tomography (PET/CT) imaging using a CXCR4 radioligand revealed that MI pa-tients display enlarged med-LNs with increased T cellularity. Alterations in the med-LN corre-lated with infarct size and cardiac function. Taken together, these results provide strong evidence that the MI-context induces protective T cell autoimmunity in mice, and confirm the existence of an analogous physiological heart/med-LN/T cell axis in MI patients, which offers translational potential.

2019-08-14 | GSE116569 | GEO

A proteomic map of resting and activated CD4+ T cells

Project description:CD4+ T cells (T helper cells) are cytokine-producing adaptive immune cells that activate or regulate the responses of different immune cells. They are known to play crucial roles in antibody class switching in B cells, neutrophil recruitment and activation of macrophages and CD8+ cytotoxic T cells. The activation and functional status of CD4+ T cells is important for adequate responses to pathogen infections but has also been associated with auto-immune disorders and survival in several cancers. In the current study, we carried out proteomic profiling of resting and activated primary human CD4+ T cells from healthy donors. In addition to identifying known markers of CD4+ T cell activation, we also identified protein kinases, protein phosphatases, and cytokines to be differentially expressed.

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Rnmt cKO vs control activated CD4 T cell ribo Mega-SEC

Project description:We aimed to identify how loss of the cap methyltransferase RNMT affected the ribosomes and ribosome-associated proteins in activated CD4 T cells.

2021-05-13 | PXD023832 | Pride

Microenvironmental network of clonal CXCL13+CD4+ T cells and regulatory T cells in pemphigus chronic blisters

Project description:Pemphigus, a rare autoimmune bullous disease mediated by anti-desmoglein autoantibodies, can be controlled with systemic medication like rituximab and high-dose systemic corticosteroids combined with immunosuppressants. However, some patients continue to experience chronically recurrent blisters in a specific area, requiring long-term maintenance systemic therapy. We demonstrate the presence of skin tertiary lymphoid structures (TLSs) with desmoglein-specific B cells in chronic blisters from pemphigus patients. In the skin TLSs, CD4+ T cells predominantly produced CXCL13. These clonally expanded CXCL13+CD4+ T cells exhibited features of activated Th1-like cells and downregulated genes associated with T-cell receptor-mediated signaling. Regulatory T cells (Tregs) are in direct contact with CXCL13+CD4+ memory T cells and increased CXCL13 production of CD4+ T cells through IL-2 consumption and TGF-β stimulation. Lastly, Intralesional corticosteroid injection improved chronic blisters and reduce skin TLSs in patients with pemphigus. This study concludes that skin TLSs are associated with the persistence of chronically recurrent blisters in pemphigus patients, and the microenvironmental network involving CXCL13+CD4+ T cells and Tregs within these structures plays an important role in CXCL13 production.

2023-09-10 | GSE242234 | GEO

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