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SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: Gene expression profiles of cSAM leukemia cells with Setdb1 depletion [RNA-seq]

ABSTRACT: SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: Gene expression profiles of cSAM leukemia cells with Setdb1 depletion [RNA-seq]

PROVIDER: PRJNA1105879 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR28828315_1.fastq.gz	Fastqsanger.gz
	SRR28828315_2.fastq.gz	Fastqsanger.gz
	SRR28828316_1.fastq.gz	Fastqsanger.gz
	SRR28828316_2.fastq.gz	Fastqsanger.gz
	SRR28828317_1.fastq.gz	Fastqsanger.gz

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SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: CRISPR/Cas9 screens on cSAM leukemia cells

Project description:Monocytic acute myeloid leukemia (AML) responds poorly to current treatments, including venetoclax-based therapy. We conducted in vivo and in vitro CRISPR/Cas9 library screenings using a mouse monocytic AML model, and identified SETDB1 and its binding partners (ATF7IP and TRIM33) as crucial tumor promoters in vivo. The growth-inhibitory effect of Setdb1 depletion in vivo was mainly dependent on NK cell-mediated cytotoxicity. Mechanistically, SETDB1 depletion upregulated interferon-stimulated genes and NKG2D ligands through demethylation of histone H3 Lys9 at the monocyte-specific enhancer regions, thereby enhancing their immunogenicity to NK cells and intrinsic apoptosis. Importantly, these effects were not observed in non-monocytic leukemia cells. We also identified the expression of MNDA and its murine counterpart Ifi203 as biomarkers to predict the sensitivity of each AML to SETDB1 depletion. Our study highlights the critical and selective role of SETDB1 in monocytic AML and underscores its potential as a therapeutic target for current unmet needs.

2024-08-03 | GSE270630 | GEO

SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: H3K9me3 ChIP-seq of cSAM leukemia cells with Setdb1 depletion [ChIP-seq]

2024-08-03 | GSE266098 | GEO

SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: Gene expression profiles of cSAM leukemia cells with Setdb1 depletion [RNA-seq]

2024-08-03 | GSE266097 | GEO

SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: CRISPR/Cas9 screens on cSAM leukemia cells

Project description:SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: CRISPR/Cas9 screens on cSAM leukemia cells

| PRJNA1127595 | ENA

SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: H3K9me3 ChIP-seq of cSAM leukemia cells with Setdb1 depletion [ChIP-seq]

Project description:SETDB1 suppresses interferon responses and NK cell-mediated immunosurveillance specifically in monocytic AML: H3K9me3 ChIP-seq of cSAM leukemia cells with Setdb1 depletion [ChIP-seq]

| PRJNA1105882 | ENA

Activin A and NK cell function

Project description:Natural killer (NK) cells are innate lymphocytes that play a major role in immunosurveillance against tumor initiation and metastasis spread. Signals and checkpoints that regulate NK cell fitness and function in the tumor microenvironment are not well defined. Transforming grow factor (TGF)- is a recognized suppressor of NK cells that inhibits IL-15 dependent signaling events and induces cellular transdifferentiation, however the role of other SMAD signaling pathways in NK cells is unknown. We used a global, label-free proteomics approach to compare the protein expression profiles of NK cells in the presence of TGF-b or activin-A.

2020-04-06 | PXD011672 | Pride

Regulatory NK cells: IL-18-elicited NK cells with immunosuppressive functions

Project description:Cancer-induced tolerance mostly involves myeloid suppressor cells, regulatory T cells and immunosuppressive cytokines, which all subvert adaptive immune responses against tumor cells. Here, we show that a subset of innate effectors, c-kit expressing NK cells (Kit+ NK), can participate in tumor-induced tolerance by compromising the NK cell arm of tumor immunosurveillance. IL-18 produced by tumor cells can convert Kit- into Kit+ NK cells that overexpress B7-H1/PD-L1 molecules. Upon tumor inoculation, Kit+ NK cells rapidly develop in lymphoid organs in a IL-18R/MyD88 dependent manner and directly kill Kit- NK cells in a B7-H1/PD-1-dependent manner, thereby promoting the progression of NK-controlled cancers. Our data suggest that, in a tumoral context, IL-18 subverts antitumor NK cell functions. Systemic neutralization of IL-18 by IL-18-binding protein may improve the NK-mediated immunosurveillance. Keywords: cell type comparison

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Cancer Immunosurveillance by Innate Lymphoid Cells and Innate-like T Cells

Project description:Malignancy can be suppressed by the immune system in a process termed immunosurveillance. However, to what extent immunosurveillance occurs in spontaneous cancers and the composition of participating cell types remain obscure. Here we show that cell transformation triggers a tissue-resident lymphocyte response in oncogene-induced murine cancer models. Non-circulating cytotoxic lymphocytes, derived from innate, TCRαβ and TCRγδ lineages, expand in early tumors. Characterized by high expression of NK1.1, CD49a and CD103, these cells share a gene expression signature distinct from those of conventional NK cells, T cells and invariant NKT cells. Generation of these lymphocytes is dependent on the cytokine IL-15, but not the transcription factor Nfil3 that is required for the differentiation of tumor-infiltrating NK cells; and IL-15, but not Nfil3, deficiency results in accelerated tumor growth. These findings reveal a novel tumor-elicited cancer immunosurveillance mechanism that engages unconventional type 1-like innate lymphoid cells and type 1 innate-like T cells.

2016-01-21 | GSE76362 | GEO

Proteomic analysis of NK cell-derived extracellular vesicles.

Project description:Natural killer (NK) cells contribute to immunosurveillance and first-line defense in the control of tumor growth and metastasis diffusion. NKEVs are constitutively secreted, are biologically active, reflect the protein and genetic repertoire of their originating cells and exert anti-tumor activity in vitro and in vivo. NKEVs from tumor-conditioned NK cells interact with naïve NK cells promoting their cytotoxic activity. In cancer NK cells exhibit profound defects in degranulation ability, a status probably reflected by their NKEVs. Hence, NKEVs could contribute to improve cancer therapy by interacting with tumor and/or immune cells at the same time sensing the actual NK cell status in cancer patients. Here we investigated the role of NKEVs in stimulating the immune system and developed an immune enzymatic test (NKExoELISA) to sense the systemic NK cell status by measuring plasma NK-derived exosomes through combined capture of exosomes, expressing typical EV (tsg101) and NK cell (CD56) markers. We analyzed by LC-MS/MS the protein content from NKEVs evaluating proteins differentially expressed in exosomes (NKExo), vescicles (NKMV) and total cell extract (Tot extr) from parental NK cells. Proteomic data confirmed the presence of many EV markers and detected several proteins involved in immune response, cell adhesion and complement biological processes.

2020-04-03 | PXD014894 | Pride

Hypoxia stabilizes SETDB1 to maintain genome stability

Project description:Von Hippel-Lindau (VHL) is a tumor suppressor that functions as the substrate recognition subunit of the CRL2VHL E3 complex. While substrates of VHL have been identified, its tumor suppressive role remains to be fully understood. For further determination of VHL substrates, we analyzed the physical interactome of VHL and identified the histone H3K9 methyltransferase SETBD1 as a novel target. SETDB1 undergoes oxygen-dependent hydroxylation by prolyl hydroxylase domain proteins (PHD) and the CRL2VHL complex recognizes hydroxylated SETDB1 for ubiquitin-mediated degradation. Under hypoxic conditions, SETDB1 accumulates by escaping CRL2VHL activity. Loss of SETDB1 in hypoxia compared with that in normoxia escalates the production of transposable element (TE)-derived double-stranded RNAs (dsRNAs), thereby hyperactivating the immune-inflammatory response. In addition, strong derepression of TEs in hypoxic cells lacking SETDB1 triggers DNA damage-induced death. Our collective results support a molecular mechanism of oxygen-dependent SETDB1 degradation by the CRL2VHL E3 complex and reveal a role of SETDB1 in genome stability under hypoxia.

2024-01-26 | PXD037104 | Pride

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