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Hallmarks of CD8 T cell dysfunction are established within hours of tumor antigen encounter

ABSTRACT: ATAC-SEQ analysis of antigen-specific CD8 T cells sorted from murine liver tumors and from the spleens of Listeria-infected mice at different early timepoints following adoptive transfer. We sequenced naive antigen-specific CD8 T cells from spleens for comparison. We also sorted tumor-infiltrating antigen-specific CD8 T cells that were removed from tumors and parked in tumor-free hosts for 5 days. The overall goal of this study was to determine the earliest chromatin remodeling events in CD8 T cells activated and differentiating in late tumor-bearing hosts or in infected mice and to determine the extent to which tumor-induced chromatin remodeling was "imprinted."

ORGANISM(S): Mus musculus

PROVIDER: GSE209710 | GEO | 2023/07/10

REPOSITORIES: GEO

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Hallmarks of CD8 T cell dysfunction are established within hours of tumor antigen encounter

Project description:RNA-SEQ analysis of antigen-specific CD8 T cells sorted from murine liver tumors and from the spleens of Listeria-infected mice at different early timepoints following adoptive transfer. We sequenced naive antigen-specific CD8 T cells from spleens for comparison.

2023-07-10 | GSE209711 | GEO

Whole-genome microarray analysis of primary, secondary, tertiary and quaternary memory CD8 T cells

Project description:The transcriptome of naive OT-I T cells was compared to memory CD8 T cells after 1, 2, 3, or 4 infection with ovalbumin expressing Listeria monocytogenes (LM-OVA). Naive Thy1.1 OT-I T cells were adoptively transferred into Thy1.2 naive hosts prior to infection with LM-OVA. The resulting memory CD8 T cell population was again adoptively transferred into naive hosts and the recipient mice were again infected with LM-OVA. The adoptive transfer was repeated up to four times to generate memory CD8 T cells with up to four consecutive antigen stimulations. Three individual mice were analyzed for each group. For quaternary memory CD8 T cells, spleens from two to three mice were pooled for each sample. Naive OT-I T cells served as control samples. http://dx.doi.org/10.1016/j.immuni.2010.06.014

2010-07-09 | E-GEOD-21360 | biostudies-arrayexpress

Hallmarks of CD8 T cell dysfunction are established within hours of tumor antigen encounter

Project description:Hallmarks of CD8 T cell dysfunction are established within hours of tumor antigen encounter

| PRJNA862138 | ENA

Hallmarks of CD8 T cell dysfunction are established within hours of tumor antigen encounter

Project description:Hallmarks of CD8 T cell dysfunction are established within hours of tumor antigen encounter

| PRJNA862137 | ENA

Bulk RNA-Seq analysis of CD8+ T cells from treatment-naïve matched tumor-bearing lungs and spleens from the HKP1 orthotopic mouse lung adenocarcinoma model

Project description:To investigate how gene expression profiles change in CD8+ T cells based on time, tumor burden, and tissue localization, we orthotopically implanted the mouse lung adenocarcinoma HKP1 cell line expressing luciferase into syngeneic C57BL/6 mice by tail vein injections. Tumor growth was monitored by bioluminescence imaging. A separate cohort of mice received no tumor implantation. At days 7, 17, and 24 post tumor implantation, mice were euthanized and CD8+ T cells sorted from tumor-bearing lungs and spleens, or matched naive lungs and spleens. We then performed gene expression profiling analysis using data obtained from RNA-seq of sorted cells, comparing across time, tumor burden, and tissue localization.

2023-10-19 | GSE218141 | GEO

Hexokinase 2 is dispensable for T cell-dependent immunity

Project description:Hexokinase 2 (HK2) is one the most highly upregulated enzymes in glycolysis in activated T cells and cancer cells. We genetically abolished HK2 expression in T cells in vivo and infected mice with LCMV to induce T cell proliferation. CD8+ T cells from were sorted from spleens of WT and HK2 null mice 8 days after infection. Additionally, WT CD8+ T cells were compared to WT primary T cell acute lymphoblastic leukemia (T-ALL). T-ALL cells were sorted from spleens of mice 6 weeks after adoptive transfer of bone marrow that overexpresses mutant Notch1 (Notch1-deltaE).

2018-08-13 | GSE118326 | GEO

Tumor-specific CD4+ T cells eradicate established melanoma

Project description:Adoptive transfer of CD4+ T cells (TRP-1 CD4+ T cells) specific for tyrp-1 (tyrosinase-related protein 1) eradicate established tumors (melanoma) in lymphopenic RAG-/- hosts. In vitro differentiated CD8+ T cells have been the primary focus of immunotherapy of cancer with little focus on CD4+ T cells. Immunotherapy involving in vitro differentiated T cells given after lymphodepleting regimens significantly augments antitumor immunity in animals and human patients with cancer. However, the mechanisms by which lymphopenia augments adoptive cell therapy and the means of properly differentiating T cells in vitro are still emerging. We demonstrate that naïve tumor/self-specific CD4+ T cells naturally differentiated into T helper type 1 (Th1) cytotoxic T cells in vivo and caused the regression of established tumors and depigmentation in lymphopenic hosts. Therapy was independent of vaccination, exogenous cytokine support, CD8+-, B-, NK and NK-T cells. Proper activation of CD4+ T cells in vivo was important for tumor clearance as naïve tumor-specific CD4+ T cells could not completely treat tumor in lymphopenic common gamma chain-deficient (gc-/-) hosts. gc signaling in the tumor-bearing host was important for survival and proper differentiation of adoptively transferred tumor-specific CD4+ T cells. Thus, these data provide a platform for designing immunotherapies that incorporate tumor/self-reactive CD4+ T cells. 2 x 10^5 sorted TRP-1 CD4+ T cells were transferred i.v. into tumor-bearing RAG-/- hosts on day 7-10 after tumor challenge, and ~1 x 10^6 CD4+ T cells were isolated 1 week later by flow sorting from pooled lymph nodes (LN) or spleens. Dye-swaps were performed.

2010-01-14 | E-GEOD-19904 | biostudies-arrayexpress

Expression data from OT-I CD8 T cells activated with DC in the presence or absence of CpG-Induced Inflammation

Project description:Inflammatory cytokines promote the accumulation of activated CD8 T cells. Here, we transfer 600 OT-I CD8 T cells iv into naïve C57BL/6 hosts. One day later, 500,000 LPS-matured and OVA257 peptide-coated DC were injected iv into OT-I CD8 T cell seeded hosts with (DC+CpG) or without (DC). Other seeded mice were infected with 2x10^4 virulent Listeria monocytogenes (vLM-OVA) iv. OT-I CD8 T cells were harvested from the spleen, flow sort purified, then RNA was extracted using RNeasy (Qiagen) kit. Naive OT-I CD8 T cells (Naive) were purified from the spleens of OT-I transgenic mice. Each group had three independent biological replicates.Transcriptomes were compared using DAVID analysis (with genes scoring FDR<0.01) and GSEA analysis.

2013-12-10 | GSE53200 | GEO

Expression data from OT-I CD8 T cells activated with DC in the presence or absence of CpG-Induced Inflammation

Project description:Inflammatory cytokines promote the accumulation of activated CD8 T cells. Here, we transfer 600 OT-I CD8 T cells iv into naÃ¯ve C57BL/6 hosts. One day later, 500,000 LPS-matured and OVA257 peptide-coated DC were injected iv into OT-I CD8 T cell seeded hosts with (DC+CpG) or without (DC). Other seeded mice were infected with 2x10^4 virulent Listeria monocytogenes (vLM-OVA) iv. OT-I CD8 T cells were harvested from the spleen, flow sort purified, then RNA was extracted using RNeasy (Qiagen) kit. Naive OT-I CD8 T cells (Naive) were purified from the spleens of OT-I transgenic mice. Each group had three independent biological replicates.Transcriptomes were compared using DAVID analysis (with genes scoring FDR<0.01) and GSEA analysis. 3 biological replicates per group. Groups included NaÃ¯ve OT-I CD8 T cells, DC+CpG OT-I CD8 T cells, DC OT-I CD8 T cells, and vLM-OVA OT-I CD8 T cells. Most comparisons used NaÃ¯ve OT-I CD8 T cells as a baseline comparison

2013-12-10 | E-GEOD-53200 | biostudies-arrayexpress

Gene expression profile of influenza virus antigen-activated or in vitro stimulated murine CD8+ T cells on day 7

Project description:The precise timing and pathway of memory CD8+ T cells differentiation from naïve T cells have remained undetermined. We found the smaller cell-size and slower cell cycling cells were segregated from the proliferative larger cell-size activated T cell pool at the peak of infection. Gene signature of the smaller cell-size slower cycling cells and the large cell-size proliferative cells was compared to the signature of naïve, effector, central and effector memory CD8+ T cells. Total RNA samples were prepared from sorted populations of larger or smaller cell-sized cells from spleens of influenza virus PR8-OVA-infected mice on day 7 p.i. or from in vitro 7 days culture after stimulation with plate-bound anti-CD3ε (1.0 μg ml−1) and anti-CD28 mAb (0.5 μg ml−1). Effector T-cell control samples were prepared from SIINFEKL (100 ng ml−1) stimulated OT-I cells after 4 days of in vitro culture with rIL-2 (10 ng/ml) and sorted as CD8+CD44hiCD62Llo. Control bona fide effector memory and central memory T cells were sorted from the spleens of PR8-OVA-infected mice on day 42 p.i. Naive cells were sorted as CD8+CD44loCD62Lhi cells from uninfected C57BL/6 mice.

2015-02-25 | E-GEOD-48219 | biostudies-arrayexpress

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