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cd39 identifies the cd4 tumor specific t cell population

Current Location : Home > cd39 identifies the cd4 tumor specific t cell population

  • CD39 Expression Defines Cell Exhaustion in Tumor

    Sep 01 2018 · Because exhausted T cells the target population of immune checkpoint inhibition do not express high levels of CD39 (4) it might be a promising strategy to create a synergistic effect between immune checkpoint inhibition and CD39 targeting thereby improving efficacy of immune checkpoint inhibition in cancer.

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  • Tumor-infiltrating human CD4 regulatory T cells display a

    Jan 11 2019 · Elevated frequencies of intratumoral CD4 regulatory T (Treg) cells have typically been associated with more rapid tumor progression but the antigen specificity of these Treg cells within tumors is not well understood. Here Ahmadzadeh et al. characterized the TCR repertoire of intratumoral Treg cells from patients with metastatic melanoma gastrointestinal and ovarian cancers.

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  • Frontiers Enhanced Phenotype Definition for Precision

    In the context of adoptive T cell transfer (ACT) for cancer treatment it is crucial to generate in vitro large amounts of tumor-specific CD8 T cells with high potential to persist in vivo. PD-1 Tim3 and CD39 have been proposed as markers of tumor-specific tumor-infiltrating CD8 T lymphocytes (CD8 TILs). However these molecules are highly expressed by terminally differentiated exhausted CD8

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  • Optimized workflow improves the characterization of

    1 Reliable and fast isolation of 250T cells from syngeneic mouse tumors Results We have developed new CD4 CD8 and pan T cell specific enrichment reagents for magnetic cell isolation (MACS® Technology) directly from dissociated tumor tissue (fig. 1A). Tumors derived from B16-F10 (left and

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  • CD39 Identifies the CD4 Tumor-Specific T-cell Population

    Oct 01 2020 · The CD4 T-cell population tended to comprise more CD39 cells coexpressing CD38 PD-1 and HLA-DR whereas a small percentage also coexpressed CD103 and CD161 (Fig. 1BD Supplementary Fig. S2A).

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  • Human CD4 T Cells Specific for Merkel Cell Polyomavirus

    Merkel cell carcinoma (MCC) is an aggressive skin cancer caused by Merkel cell polyomavirus (MCPyV) oncoproteins in 80 of cases. Because MCPyV oncoproteins are shared across most patients with MCC it is unusually feasible to identify characterize and potentially augment tumor-specific CD4 T cells.

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  • Detailed characterization of tumor infiltrating

    Nov 18 2014 · CD3 enriched T cells from tumors were stained with anti-CD4 anti-CD25 anti-CD127 and anti-HLA-DR and were gated on the CD25 hi CD127 lo CD4 T cells which identifies the Treg population in tumors . These cells were then sorted into HLA-DR positive and negative subsets and their ability to inhibit T cell function was assessed.

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  • Increased CD39 expression on CD4 T lymphocytes has

    Chronic lymphocytic leukemia (CLL) cells depend on their microenvironment for proliferation and survival. Ectonucleotidase CD39 has anti-inflammatory properties as it hydrolyzes proinflammatory extracellular ATP generates anti-inflammatory adenosine and also protects regulatory T cells from ATP-induced cell death. In this study we investigated the clinical significance of CD39 expression on

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  • Induction of gut regulatory CD39 T cells by teriflunomide

    Flow cytometric analysis was performed to examine T cells (total T cells CD4 and CD8 T cell numbers are shown) and CD39 Foxp3 − CD39 Foxp3 and CD39 − Foxp3 subpopulations (after gating on CD4 CD3 T cells) in the PPs (A C E) and MLNs (B D F). Bar graphs show the mean ± standard errors of frequencies and absolute

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  • Full text CD8 CD39 T Cells Mediate Anti-Tumor

    In our study the elevated expression of CD39 in CD4 /CD8 T cells were significantly associated with the pathological T stage (pT < 2 P = 0.041) and papillary tumor ( P = 0.038). Moreover the CD8 CD39 T cells showed a stronger tumor-killing effect and produced a higher level of IFN-γ than other T cell

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  • JCIPD-1 identifies the patient-specific CD8 tumor

    Mar 25 2014 · Figure 7. Tumor-reactive and mutation-specific clonotypes are highly expanded in the CD8 and PD-1 populations. ( A) Response of CD8 PD-1 ( n = 44) and CD8 PD-1( n = 109) FrTu3713-derived T cell clones to TC3713. Each dot represents 1 clone line represents median IFN-γ release for all clones tested.

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  • CD39 Expression Identifies Terminally Exhausted CD8 T Cells

    CD39 expressed by CD8 T cells in chronic infection is enzymatically active co-expressed with PD-1 marks cells with a transcriptional signature of T cell exhaustion and correlates with viral load in HIV and HCV. In the mouse model of chronic Lymphocytic Choriomeningitis Virus infection virus-specific CD8 T cells contain a population of

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  • (PDF) Targeting CD39 in cancerResearchGate

    Dec 16 2020 · In our study the elevated expression of CD39 in CD4 /CD8 T cells were significantly associated with the pathological T stage (pT <2 P = 0.041) and papillary tumor

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  • Cancer Immunotherapy Based on Mutation-Specific CD4 T

    Using whole-exome sequencing Tran et al. (p. 641) identified tumor-infiltrating CD4 T cells specific for a mutated antigen expressed by a tumor from a patient with metastatic cholangiocarcinoma.

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  • CD39 Expression Identifies Terminally Exhausted CD8 T Cells

    Oct 20 2015 · Author Summary Chronic viral infection induces an acquired state of T cell dysfunction known as exhaustion. Discovering surface markers of exhausted T cells is important for both to identify exhausted T cells as well as to develop potential therapies. We report that the ectonucleotidase CD39 is expressed by T cells specific for chronic viral infections in humans and a mouse model but is rare

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  • CD39 Expression Identifies Terminally Exhausted CD8 T Cells

    Oct 20 2015 · Author Summary Chronic viral infection induces an acquired state of T cell dysfunction known as exhaustion. Discovering surface markers of exhausted T cells is important for both to identify exhausted T cells as well as to develop potential therapies. We report that the ectonucleotidase CD39 is expressed by T cells specific for chronic viral infections in humans and a mouse model but is rare

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  • Synergy between the ectoenzymes CD39 and CD73 contributes

    Specifically CD4 CD39 T cells U-87 MG/T98G cells and CD4 CD39 − responder T cells were pretreated with 250 µM ARL67156 100 µM APCP and 1 µM adenosine A 2a receptor–specific antagonist SCH58261 (Tocris Bioscience) respectively for 30 min before the start of coculture. On day 4 percent cell proliferation was analyzed using a

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  • Mass Cytometry Identifies Distinct Lung CD4 T Cell

    Sep 12 2017 · The role of CD39 in this context is less established but CD39 CD4 T cells have been proposed as inducers of T cell proliferation and cytokine production . Moreover a recent study showed reduced suppressive function of CD39 compared to CD39 − Tregs ( 29 ) implicating dysfunctional regulatory mechanisms particularly in the pathogenesis

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  • Mass Cytometry Identifies Distinct Lung CD4 T Cell

    Sep 12 2017 · The role of CD39 in this context is less established but CD39 CD4 T cells have been proposed as inducers of T cell proliferation and cytokine production . Moreover a recent study showed reduced suppressive function of CD39 compared to CD39 − Tregs ( 29 ) implicating dysfunctional regulatory mechanisms particularly in the pathogenesis

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  • Expression of CD39 on Activated T Cells Impairs their

    Feb 09 2016 · CD39 is inducible in central and effector memory CD4 T cells while end-differentiated TEMRA cells show lesser expression (Figure 1 B). CD39 expression on activated naive CD4 T cells is infrequent on day 4 (Figure 1 B) but increases on subsequent days (data not shown).

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  • Role of T-cells in myocardial infarction European Heart

    CD4 antigen mainly identifies T-helper cells CD8 CD8 antigen mainly identifies cytotoxic T-cells CD25 Subunit of the interleukin-2 receptor expressed on activated T-cells and CD4 T-regulatory T-cells Foxp3 Forkhead-Box-Protein 3 transcription factor serves as marker for CD4 T-regulatory cells in mice CD39

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  • Co-expression of CD39 and CD103 identifies tumor-reactive

    Jul 13 2018 · CD103 and CD39 identify tumor-resident CD8 T cells. Recent work has shown that tumor-reactive CD8 T cells can be found within the CD103

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  • Full text CD8 CD39 T Cells Mediate Anti-Tumor

    In our study the elevated expression of CD39 in CD4 /CD8 T cells were significantly associated with the pathological T stage (pT < 2 P = 0.041) and papillary tumor ( P = 0.038). Moreover the CD8 CD39 T cells showed a stronger tumor-killing effect and produced a higher level of IFN-γ than other T cell

    Get Price
  • PD-L1 blockade engages tumor-infiltrating lymphocytes to

    Aug 14 2019 · The CD4 T cell pool in human tumors contained a substantial fraction of cells with a CD69 PD1 phenotype and within this population a CD39 ICOS subset could be identified (Fig. 7B). Together these results established that in tumors of mice and humans CD4 and CD8 T AI cell subsets are present.

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  • Expression of CD39 by Human Peripheral Blood CD4 CD25 T

    Oct 26 2010 · CD4 CD25 CD39 expression identifies a Treg subset while CD4 CD25 CD39 − expression denotes a population of T cells with Th17 potential in accordance with recently published data (8 9). In contrast to the phenotype observed in mice CD73 is not substantially coexpressed with CD39 in these Treg populations.

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  • JCIPD-1 identifies the patient-specific CD8 tumor

    Mar 25 2014 · Figure 7. Tumor-reactive and mutation-specific clonotypes are highly expanded in the CD8 and PD-1 populations. ( A) Response of CD8 PD-1 ( n = 44) and CD8 PD-1( n = 109) FrTu3713-derived T cell clones to TC3713. Each dot represents 1 clone line represents median IFN-γ release for all clones tested.

    Get Price

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