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Bulk RNA-seq analysis of IFNγ-PD-L1all, IFNγ+PD-L1all and IFNγ+PD-L1hi PDAC cells

ABSTRACT: Bulk RNA-seq analysis of IFNγ-PD-L1all, IFNγ+PD-L1all and IFNγ+PD-L1hi PDAC cells

PROVIDER: PRJNA918823 | ENA |

REPOSITORIES: ENA

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Bulk RNA-seq analysis of IFNγ-PD-L1all, IFNγ+PD-L1all and IFNγ+PD-L1hi PDAC cells

Project description:For comparison of the transcription profile between IFNγ-PD-L1all and IFNγ+PD-L1all cells, we treated KPC1199 cells with vehicle control or 10 ng/mL recombinant mouse IFNγ for 20 hours and harvested them. For comparison of PD-L1hi with PD-L1all, cells were either sorted with the top 15% PD-L1+ or total of IFNγ+PD-L1all PDAC cells, and freshly collected as soon as possible to be used for RNA preparation.

2024-08-20 | GSE222222 | GEO

IFNγ treatment restores TAP-dependent presentation competence of PD-L1 sensitive PDAC cells

Project description:For immunotherapy, there is an urgent need to restore presentation-competence of cancer cells with defects in MHC-I processing/presentation. We identified two tumor-specific antigens expressed in the ER of pancreatic ductal adenocarcinoma cells (PDACCs) that induced effector CD8 T cells either independent (Cripto-1-Kb/Cr16-24) or dependent (gp70-Kb/p15E) on TAP-mediated antigen processing/presentation by DNA immunization. In systematic analyses, we showed that transplantation into syngeneic C57BL/6J mice or IFNγ-treatment in vitro upregulated MHC-I but also co-inhibitory PD-L1 molecules on PDACCs. IFNγ-treated PDACCs efficiently formed solid tumors in transplanted C57BL/6J and PD-L1-/- but were rejected in PD-1-/- mice. PDACCs induced a prophylactic immunity against tumor transplants in C57BL/6J mice when irradiated at day 2-3 post IFNγ-treatment, thereby silencing the tumor-initiated immune-suppressive PD-L1/PD-1-signaling axis. Immune-protection correlated with a significant enhanced induction of CD8 T cells against the TAP- but not the TAP-dependent antigen/epitope.

2020-08-06 | GSE140397 | GEO

IFNγ treatment restores TAP-dependent presentation competence of PD-L1 sensitive PDAC cells

Project description:IFNγ treatment restores TAP-dependent presentation competence of PD-L1 sensitive PDAC cells

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CUT&Tag analysis of H3K4me3, H3K27Ac,H2A119Ub and H3K27me3 in treated KPC1199 murine PDAC cell line

Project description:To gain mechanistic insight into how Epigenetic factors reprogramming tumor immune microenvironment in response to IFNγ stimulation. we performed CUT&Tag sequencing in murine PDAC cells.For comparison of the transcription profile between IFNγ-PD-L1all and IFNγ+PD-L1all cells, we treated KPC1199 cells with vehicle control or 10 ng/mL recombinant mouse IFNγ for 20 hours and harvested them. For comparison of PD-L1hi with PD-L1all, cells were either sorted with the top 15% PD-L1+ or total of IFNγ+PD-L1all PDAC cells, and freshly collected as soon as possible. Hyperactive pA-Tn5 Transposase for CUT&Tag kit from Vazyme (TD901), and antibodies against H3K4me3 from Abcam (ab213224), H3K27Ac from Abcam (ab4729),H2A119Ub from Cell Signaling (8240T) and H3K27me3 from Abcam (ab6002) were employed. Trueprep index kit v2 and v3 for illumina were used to establish DNA library.

2024-08-20 | GSE222133 | GEO

Bulk RNA-seq analysis of PDAC tumor Cells

Project description:Bulk RNA-seq analysis of PDAC tumor Cells

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Effects of PD-0332991 on gene expression of human pancreatic ductal adenocarcinoma (PDAC) cell lines

Project description:PD-0332991 is a small molecule inhibitor for Cdk4 and Cdk6. It exerted growth inhibitory effects on PDAC cell lines (AsPC-1 and COLO-357). Microarray analysis was used to characterize the changes in gene expression profiles of AsPC-1 and COLO-357 upon PD-0332991 incubation AsPC-1 and COLO-357 cells were treated in the absence or presence of 5 ÂµM PD-0332991 for 24 h and 72 h. Each expreimental condition had biological triplicates. Twenty-four samples were analyzed in total.

2012-10-10 | E-GEOD-39646 | biostudies-arrayexpress

STUB1 dampens IFNγ response in tumors by destabilizing the IFNγ receptor complex

Project description:Despite its success, immune checkpoint blockade (ICB) cannot induce durable responses in most patients. This is partially attributed to reduced sensitivity to interferon gamma (IFNγ). Thus, elevating tumor IFNγ-receptor 1 (IFNγ-R1) expression to enhance IFNγ-mediated cytotoxicity is of clinical interest. Here, we demonstrate higher IFNγ-R1 expression to sensitize tumors to IFNγ-mediated killing. To unveil the largely undefined mechanisms of IFNγ-R1 expression, we performed a genome-wide CRISPR/Cas9 knockout screen for suppressors of IFNγ-R1 tumor cell surface abundance. We uncovered STUB1 as key mediator for proteasomally degrading IFNγ-R1/JAK1 complex. Conversely, STUB1 inactivation in tumor cells amplified IFNγ signaling and sensitized to cytotoxic T cells, but permitted IFNγ-induced PD-L1 expression. Rationally combining STUB1 inactivation with anti-PD-1 treatment effectively eliminated tumors in vivo. Clinically corroborating this is a STUB1 transcriptomic signature that associates with response to anti-PD-1 treatment in two patient cohorts. Thus, uncovering STUB1 as a pivotal regulator of IFNγ signaling and a synergistic target for anti-PD-1 treatment.

2022-02-24 | GSE154040 | GEO

Bulk RNA-seq analysis of PDAC tumor Cells

Project description:Orthotopic PDAC tumor were established with KPC and KPSC cells, respectively. After about 10-14 days, PDAC cells with Setd2-KO and Setd2-WT were sorted from orthotopic PDAC tumor by DPAI-CD45.2-Pdpn-Epcam+, and used for RNA preparation.

2024-08-07 | GSE196752 | GEO

UBIQUITIN LIGASE STUB1 DESTABILIZES IFNγ-RECEPTOR COMPLEX TO SUPPRESS TUMOR IFNγ SIGNALING

Project description:The cytokine IFNγ differentially impacts on tumors upon immune checkpoint blockade (ICB). Despite our understanding of downstream signaling events, less is known about 36 regulation of its receptor (IFNγ-R1). With an unbiased genome-wide CRISPR/Cas9 screen for critical regulators of IFNγ-R1 cell surface abundance, we identified STUB1 as an E3 ubiquitin ligase for IFNγ-R1 in complex with its signal-relaying kinase JAK1. STUB1 mediates ubiquitination-dependent proteasomal degradation of IFNγ-R1/JAK1 complex through IFNγ-R1K285 and JAK1K249. Conversely, STUB1 inactivation amplifies IFNγ signaling, sensitizing tumor cells to cytotoxic T cells in vitro. This was corroborated by an anticorrelation between STUB1 expression and IFNγ response in ICB-treated patients. Consistent with the context-dependent effects of IFNγ in vivo, anti-PD-1 response was increased in heterogenous tumors comprising both wildtype and STUB1-deficient cells but not full STUB1 knockout tumors. These results uncover STUB1 as a critical regulator of IFNγ-R1, and highlight the context-dependency of STUB1-regulated IFNγ signaling for ICB outcome.

2022-03-07 | PXD030580 | Pride

RNA-seq of M-CSF differentiated human peripheral monocyte-derived macrophages (MDMs) activated with short exposure (3hours) to LPS, or long exposure (24 hours) to LPS, LPS with IFNγ, IFNγ, IL-4, IL-10, and dexamethasone

Project description:The goal of this experiment was to validate a classification model built on other bulk transcriptomic data that was capable of identifying in vitro stimulated M-CSF differentiated macrophages. Specifically, the classification model was capable of distinguishing: M-LPSearly (2-4 hours) M-LPSlate (18-24 hours) M-LPS+IFNγ M-IFNγ M-IL4 M-IL-10 M-dex

2020-01-06 | E-MTAB-7572 | biostudies-arrayexpress

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