Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Whole genome transcriptome analysis of tumor-specific CD8 T cells in pre-malignant lesions

ABSTRACT: Gene expression analysis of tumor-specific CD8 T cells encountering a tumor-specific antigen in pre-malignant lesions in the liver at different time points post tumor initiation. The overall goal of this mouse study was to elucidate the molecular program in tumor-specific T cells encountering a tumor-specific antigen in pre-malignant lesions. The study identifies the genes and pathways that are dysregulated in tumor-specific T cells associated with T cell unresponsiveness in tumors. To identify the genes and pathways that are dysregulated in tumor-specific T cells. Gene signatures of the following sample groups were compared: 1. Naïve CD8 T cells; 2. Effector CD8 T cells; 3. Dysfunctional tumor-specific CD8 T cells isolated from pre-malignant lesions 8-12 days after tumor induction. 4. Dysfunctional tumor-specific CD8 T cells isolated from pre-malignant lesions 32-34 days after tumor initiation. The mouse tumor model that was used is an autochthonous, tamoxifen-inducible liver cancer model (ASTxCre-ERT2; AST=Albumin-floxStop-SV40 large T antigen; Cre-ERT2 = TAM-dependent Cre-recombinase) in which the SV40 large T antigen serves as the oncogenic driver and tumor-specific antigen; SV40-I TCR transgenic mice, whose CD8 T cells express a Db-restricted TCR specific for the Tag epitope I were used as source of naïve tumor-specific CD8 T cells (TCRSV40-I)

ORGANISM(S): Mus musculus

PROVIDER: GSE60501 | GEO | 2016/08/11

SECONDARY ACCESSION(S): PRJNA258423

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Whole genome transcriptome analysis of tumor-specific CD8 T cells in pre-malignant lesions

Project description:Gene expression analysis of tumor-specific CD8 T cells encountering a tumor-specific antigen in pre-malignant lesions in the liver at different time points post tumor initiation. The overall goal of this mouse study was to elucidate the molecular program in tumor-specific T cells encountering a tumor-specific antigen in pre-malignant lesions. The study identifies the genes and pathways that are dysregulated in tumor-specific T cells associated with T cell unresponsiveness in tumors. To identify the genes and pathways that are dysregulated in tumor-specific T cells. Gene signatures of the following sample groups were compared: 1. NaÃ¯ve CD8 T cells; 2. Effector CD8 T cells; 3. Dysfunctional tumor-specific CD8 T cells isolated from pre-malignant lesions 8-12 days after tumor induction. 4. Dysfunctional tumor-specific CD8 T cells isolated from pre-malignant lesions 32-34 days after tumor initiation. The mouse tumor model that was used is an autochthonous, tamoxifen-inducible liver cancer model (ASTxCre-ERT2; AST=Albumin-floxStop-SV40 large T antigen; Cre-ERT2 = TAM-dependent Cre-recombinase) in which the SV40 large T antigen serves as the oncogenic driver and tumor-specific antigen; SV40-I TCR transgenic mice, whose CD8 T cells express a Db-restricted TCR specific for the Tag epitope I were used as source of naÃ¯ve tumor-specific CD8 T cells (TCRSV40-I) Total RNA was isolated from flow-sorted transgenic CD8 TCRSV40-I T cells from the following sample groups: NaÃ¯ve, effector, D8-12-pre-malignant lesions, and D32-34 pre-malignant lesions.

2016-08-11 | E-GEOD-60501 | biostudies-arrayexpress

Mus musculus

Project description:Whole genome transcriptome analysis of tumor-specific CD8 T cells in pre-malignant lesions

| PRJNA258423 | ENA

TCR affinity defines tumor-specific CD8 T cell differentiation and dysfunction [ATAC-seq]

Project description:ATACseq analysis of tumor-infiltrating CD8 T cells encountering high (F6) or low (D4) affinity tumor antigen.

2021-12-11 | GSE141816 | GEO

TCR affinity defines tumor-specific CD8 T cell differentiation and dysfunction [RNA-seq]

Project description:RNA-seq analysis of tumor-specific CD8 T cells encountering tumor antigens with varying TCR/pMHC affinity.

2021-12-11 | GSE141817 | GEO

Mus musculus

Project description:Tumor antigen specific CD8 Tissue Resident Memory (Trm) Cells

| PRJNA644867 | ENA

Mus musculus strain:b6

Project description:Tumor antigen specific CD8 Tissue Resident Memory (Trm) Cells

| PRJNA644934 | ENA

IL-12 induces myeloid cells in situ to cross-present antigen

Project description:Myeloid-derived cells comprising the tumor stroma represent a heterogeneous population of cells critical to the structure, function and growth of established cancers. We have recently found that engineering tumor-specific CD8+ T cells to secrete IL-12 (IL-12TD) can lead to striking improvements in T-cell activity against established melanomas in murine models. Surprisingly, IL-12-dependent enhancement of CD8+ T-cell anti-tumor function did not occur through direct ligation of receptors on lymphocytes or NK cells. Instead, IL-12 sensitized host bone marrow-derived tumor-stromal cells, partly through interferon-gamma, to indirectly enhance the effects of adoptively-transferred T cells. Direct presentation of antigen by tumor was not necessary, but MHC class I expression on endogenous cells was essential for IL-12 mediated anti-tumor enhancements. Upon successful treatment with IL-12TD cells, we observed the selective elimination of tumor-infiltrating CD11b+ F4/80+ macrophages, CD11b+/ClassII+/CD11c+ dendritic cells and CD11b+/Ly6C+/Ly6G- but not CD11b+/Ly6C+/Ly6G+ myeloid-derived suppressor cells within regressing lesions. These results are consistent with a model whereby IL-12 triggers the maturation of myeloid-derived cells into competent antigen cross-presenting cells. Licensed recognition of these antigens by effector T cells may in turn trigger the collapse of the tumor stroma and aid in the regression of large vascularized lesions. Samples were collected at 3 days and 7 days from tumors treated in-vivo with no treatment, Mock pmel-1 CD8+ cell treatment, or IL-12 pmel-1 CD8+ cell treatment. There were 4 biological replicates of each sample type. There were a total of 24 samples.

2012-04-22 | E-GEOD-29164 | biostudies-arrayexpress

Global analysis of gene expression in REF52 cells expressing SV40 T antigens

2009-09-01 | GSE7836 | GEO

Cell-type Specific Regulation of Gene Expression by Simian Virus 40 T antigens

Project description:SV40 transforms cells through the action of two oncoproteins, large T antigen and small t antigen. Small t antigen targets phosphatase PP2A, while large T antigen stimulates cell proliferation and survival by action on multiple proteins, including the tumor suppressors Rb and p53. Large T antigen also binds components of the transcription initiation complex and several transcription factors. We examined global gene expression in SV40-transformed mouse embryo fibroblasts, and in enterocytes obtained from transgenic mice. SV40 transformation alters the expression of approximately 800 cellular genes in both systems. Much of this regulation is observed in both MEFs and enterocytes and is consistent with T antigen action on the Rb-E2F pathway. However, the regulation of many genes is cell-type specific, suggesting that unique signaling pathways are activated in different cell types upon transformation, and that the consequences of SV40 transformation depends on the type of cell targeted.

2009-09-01 | GSE7906 | GEO

Global analysis of gene expression in MEF cells and villi enterocytes expressing SV40 T antigens

2009-09-01 | GSE7892 | GEO