Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcriptome of YTN16 tumor tissues after treatment with anti-PD-L1 or anti-CTLA-4

ABSTRACT: A murine gastric cancer YTN16 is sensitive to anti-CTLA-4, but resistant to anti-PD-L1. To investigate tumor microenvironments after treatment of these mAbs, we performed RNA-Seq analyses.

ORGANISM(S): Mus musculus

PROVIDER: GSE184092 | GEO | 2022/01/19

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Transcriptome of YTN16 tumor tissues after treatment with anti-PD-L1 or anti-CTLA-4

Project description:Transcriptome of YTN16 tumor tissues after treatment with anti-PD-L1 or anti-CTLA-4

| PRJNA763167 | ENA

Transcriptome of murine gastric cancer treated with anti-IL-17, PD-1 or CTLA-4 antibodies.

Project description:YTN2 and YTN16 cells are chemically induced gastric cancer cell lines. YTN2 is spontaneously regressed in C57BL/6 mice in CD8+ T cell-dependent manner, while YTN16 grows progressively. To investigate the interaction of tumor microenvironment and T cells, bulk RNA-Seq of total tumor RNA were performed in YTN2 and YTN16 gastric tumor-bearing mice.

2020-10-28 | GSE146027 | GEO

Intratumoral anti-CTLA-4 delivery by an oncolytic Vaccinia virotherapy virus elicits CD8+ T cell immunity and synergizes with anti-PD-1 to reject “cold” tumors

Project description:CTLA-4 is a clinically validated antibody target for cancer immunotherapy. Toxicity, which is linked to efficacy in available anti-CTLA-4 regimens has, however, restricted their use and precluded full therapeutic dosing. Here we describe and preclinically characterize a potentially safe and highly efficacious strategy to target CTLA-4. Intratumoral administration of an oncolytic Vaccinia virus, engineered to encode a novel Treg depleting, checkpoint-blocking, anti-CTLA-4 antibody and GM-CSF (VVGM-aCTLA4) achieved tumor-restricted CTLA-4 receptor saturation and Treg-depletion, and regressed diverse tumors spanning inflamed to immunologically ignorant microenvironments. Critically, intratumorally “ignited” antitumor immunity translated into stronger systemic expansion of tumor-specific CD8+ T cells compared with systemic anti-CTLA-4. In a clinically relevant mouse model resistant to systemic immune checkpoint blockade, i.t. VVGM-aCTLA4 synergized with anti-PD-1 to reject “cold” tumors. Based on our established proof-of-concept, a clinical trial evaluating i.t. VVGM-aCTLA4 (BT-001) alone and in combination with anti-PD-1 in metastatic or advanced solid tumors has commenced.

2022-02-08 | GSE176052 | GEO

Distinct cellular mechanisms underlie anti-CTLA-4 and anti-PD-1 checkpoint blockade [WES]

Project description:Immune checkpoint blockade is able to achieve durable responses in a subset of patients, however we lack a satisfying comprehension of the underlying mechanisms of anti-CTLA-4 and anti-PD-1 induced tumor rejection. To address these issues we utilized mass cytometry to comprehensively profile the effects of checkpoint blockade on tumor immune infiltrates in human melanoma and murine tumor models. These analyses reveal a spectrum of tumor infiltrating T cell populations that are highly similar between tumor models and indicate that checkpoint blockade targets only specific subsets of tumor infiltrating T cell populations. Anti-PD-1 predominantly induces the expansion of specific tumor infiltrating exhausted-like CD8 T cell subsets. In contrast, anti-CTLA-4 induces the expansion of an ICOS+ Th1-like CD4 effector population in addition to engaging specific subsets of exhausted-like CD8 T cells. Thus, our findings indicate that anti-CTLA-4 and anti-PD-1 checkpoint blockade induced immune responses are driven by distinct cellular mechanisms.

2017-08-10 | GSE100808 | GEO

Distinct cellular mechanisms underlie anti-CTLA-4 and anti-PD-1 checkpoint blockade [RNA-seq]

2017-08-10 | GSE100807 | GEO

Defining the mechanisms of action to the anti-PD-1+LAG-3 and anti-PD-1+CTLA-4 combinations in melanoma flank models

Project description:We used single cell (sc) RNA-seq to analyze responding SM1 melanoma flank tumors and SM1 brain metastases to explore the mechanism of action of the anti-PD-1+LAG-3 and the anti-PD-1+CTLA-4 combination.

2023-11-10 | GSE243281 | GEO

RNAseq of tumor samples from CT26 syngeneic mouse treated with a PD-L1 and CTLA-4 immunotherapy combination

Project description:The ability to modulate immune-inhibitory pathways using checkpoint blockade antibodies such as PD-1, PD-L1, and CTLA-4 represents a significant breakthrough in cancer therapy in recent years. This has driven interest in identifying small-molecule-immunotherapy combinations to increase the proportion of responses. Murine syngeneic models, which have a functional immune system, represent an essential tool for pre-clinical evaluation of new immunotherapies. However, immune response varies widely between models and the translational relevance of each model is not fully understood, making selection of an appropriate pre-clinical model for drug target validation challenging. Utilizing RNAseq transcriptomic profiling, we have characterised the changes in gene regulatory pathways and immune populations in CT26 mice after treatment with the combination of anti-PD-L1 and anti-CTLA-4 antibodies. At day 7 post tumor implant, the pathways analysis of differentially expressed genes indicated an enrichment for migration of leukocytes in response to inflammation and communication between innate and adaptive immune cells. Similarly, analysis of upstream regulators suggested that lipopolysaccharide, IL-1B, TNF, IFNG, and NFKB1A pathways associated with inflammation were activated. At day 14, pathways related T-helper cell signalling pathways were upregulated. In addition, upstream regulators of the lipopolysaccharide and IFNG pathway, as well STAT1 and IL21 pathway were enriched, indicative of innate and adaptive immune response to inflammation.

2020-04-16 | E-MTAB-7777 | biostudies-arrayexpress

Anti-PD-1/anti-CTLA-4 efficacy in melanoma brain metastases depends on extracranial disease and augmentation of CD8+ T cell trafficking

Project description:Intracranial B16 melanoma tumors isolated from C57Bl6 mice were analyzed by mRNAseq. Four experimental groups were analyzed: (1) Mice with intracranial tumors receiving IgG; (2) Mice with intracranial tumors receiving anti-PD-1 plus anti-CTLA-4 therapy; (3) Mice with intracranial plus extracranial tumors receiving IgG; (4) Mice with intracranial plus extracranial tumors receiving anti-PD-1 plus anti-CTLA-4 therapy. Taggart et al., PNAS 2018;

2018-02-01 | GSE109485 | GEO

Distinct cellular mechanisms underlie anti-CTLA-4 and anti-PD-1 checkpoint blockade

Project description:Distinct cellular mechanisms underlie anti-CTLA-4 and anti-PD-1 checkpoint blockade

| PRJNA393126 | ENA

Transcriptome of murine gastric cancer treated with anti-IL-17, PD-1 or CTLA-4 antibodies.

Project description:Transcriptome of murine gastric cancer treated with anti-IL-17, PD-1 or CTLA-4 antibodies.

| PRJNA609077 | ENA