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Inhibition of METTL3 Results in a Cell-Intrinsic Interferon Response That Enhances Antitumor Immunity [ONT direct RNA-seq]

ABSTRACT: Inhibition of METTL3 Results in a Cell-Intrinsic Interferon Response That Enhances Antitumor Immunity [ONT direct RNA-seq]

PROVIDER: PRJNA1061135 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR27423500_1.fastq.gz	Fastqsanger.gz
	SRR27423600_1.fastq.gz	Fastqsanger.gz
	SRR27423700_1.fastq.gz	Fastqsanger.gz
	SRR27423800_1.fastq.gz	Fastqsanger.gz
	SRR27423900_1.fastq.gz	Fastqsanger.gz

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Similar Datasets

Inhibition of METTL3 Results in a Cell-Intrinsic Interferon Response That Enhances Antitumor Immunity [ONT direct RNA-seq]

Project description:Therapies that enhance antitumor immunity have altered the natural history of many cancers. Consequently, leveraging nonoverlapping mechanisms to increase immunogenicity of cancer cells remains a priority. Using a novel enzymatic inhibitor of the RNA methyltransferase METTL3, we demonstrate a global decrease in N6-methyladenosine (m6A) results in double-stranded RNA (dsRNA) formation and a profound cell-intrinsic interferon response. Through unbiased CRISPR screens, we establish dsRNA-sensing and interferon signaling are primary mediators that potentiate T-cell killing of cancer cells following METTL3 inhibition. We show in a range of immunocompetent mouse models that although METTL3 inhibition is equally efficacious to anti–PD-1 therapy, the combination has far greater preclinical activity. Using SPLINTR barcoding, we demonstrate that anti–PD-1 therapy and METTL3 inhibition target distinct malignant clones, and the combination of these therapies overcomes clones insensitive to the single agents. These data provide the molecular and preclinical rationale for employing METTL3 inhibitors to promote antitumor immunity in the clinic.

2024-01-06 | GSE252537 | GEO

Inhibition of METTL3 Results in a Cell-Intrinsic Interferon Response That Enhances Antitumor Immunity [QuantSeq 3’ mRNA-Seq]

2024-01-14 | GSE252960 | GEO

Inhibition of METTL3 results in a cell-intrinsic interferon response that enhances anti-tumour immunity [CRISPR screen]

Project description:Therapies that enhance antitumor immunity have altered the natural history of many cancers. Consequently, leveraging nonoverlapping mechanisms to increase immunogenicity of cancer cells remains a priority. Using a novel enzymatic inhibitor of the RNA methyl-transferase METTL3, we demonstrate a global decrease in N6-methyladenosine (m6A) results in double-stranded RNA (dsRNA) formation and a profound cell-intrinsic interferon response. Through unbiased CRISPR screens, we establish dsRNA-sensing and interferon signaling are primary mediators that potentiate T-cell killing of cancer cells following METTL3 inhibition. We show in a range of immunocompetent mouse models that although METTL3 inhibition is equally efficacious to anti-PD-1 therapy, the combination has far greater preclinical activity. Using SPLINTR barcoding, we demonstrate that anti-PD-1 therapy and METTL3 inhibition target distinct malignant clones, and the combination of these therapies overcomes clones insensitive to the single agents. These data provide the mole-cular and preclinical rationale for employing METTL3 inhibitors to promote antitumor immunity in the clinic.

2023-11-04 | GSE246837 | GEO

Inhibition of METTL3 Results in a Cell-Intrinsic Interferon Response That Enhances Antitumor Immunity [QuantSeq 3’ mRNA-Seq]

Project description:Inhibition of METTL3 Results in a Cell-Intrinsic Interferon Response That Enhances Antitumor Immunity [QuantSeq 3’ mRNA-Seq]

| PRJNA1063316 | ENA

Inhibition of METTL3 results in a cell-intrinsic interferon response that enhances anti-tumour immunity [RNA-seq]

Project description:Therapies that enhance anti-tumour immunity have dramatically changed the natural history of a range of cancers. Consequently, leveraging non-overlapping mechanisms to further increase the immunogenicity of cancer cells remains a major priority. Here, using a novel inhibitor of the RNA methyltransferase, METTL3, we demonstrate that enzymatic inhibition and a global decrease in N6-methyladenosine (m6A) results in double stranded RNA formation and a profound cell-intrinsic interferon response. By monitoring nascent mRNA, we show that the downstream induction of interferon stimulated genes (ISG) is coupled to a global increase in mRNA stability due to decreased m6A. One of the primary sequelae of this process is an increased expression and stability of genes associated with antigen presentation via MHC-I3. With unbiased global CRISPR screens we demonstrate that components of dsRNA sensing and interferon signalling are the primary mediators that potentiate T-cell killing of cancer cells following METTL3 inhibition. As PDL1, a key immune checkpoint, is also induced by interferon3, we show in a range of immunocompetent mouse models that whilst METTL3 inhibition alone is equally efficacious to anti-PD1 therapy, the combination has far greater pre-clinical activity. Importantly, using SPLINTR barcoding4, we demonstrate at single clone resolution that anti-PD1 and METTL3 inhibition target distinct malignant clones and the combination of these therapies augment anti-tumour immunity to overcome clones insensitive to the single agents. Together these data provide the molecular and pre-clinical rationale for employing METTL3 inhibitors to promote anti-tumour immunity in the clinical setting.

2023-10-12 | GSE217920 | GEO

Inhibition of METTL3 results in a cell-intrinsic interferon response that enhances anti-tumour immunity

Project description:Inhibition of METTL3 results in a cell-intrinsic interferon response that enhances anti-tumour immunity

| PRJNA901397 | ENA

METTL3 promotes translation in human cancer cells

Project description:we find METTL3 associates with polyribosomes and promotes translation. METTL3 depletion inhibits translation, and both wild-type and catalytically inactive METTL3 promote translation when tethered to the 3' untranslated region (UTR) of a reporter mRNA. Mechanistically, METTL3 enhances mRNA translation through an interaction with the translation initiation machinery. m6A seq in A549 and H1299 cells, RNA seq in METTL3 knockdown cells

2016-07-03 | E-GEOD-76367 | biostudies-arrayexpress

METTL3 KD in HepG2 cells

Project description:To gain insight into possible processes that require m6A for their function, METTL3 was knocked down (KD) in HepG2 cells by siRNA transfections Differential expression analysis of METTL3 KD versus mock-transfected HepG2 cells, in 2 biological replicates

2012-04-25 | E-GEOD-37001 | biostudies-arrayexpress

Cancer Mutations Rewire the RNA Methylation Specificity of METTL3-METTL14

Project description:Chemical modification of RNAs is important for post-transcriptional gene regulation. The METTL3-METTL14 complex generates most N6-methyladenosine (m6A) modifications in mRNAs, and dysregulated methyltransferase expression has been linked to numerous cancers. Here we show that m6A modification location, rather than the overall modification level, can impact oncogenesis. A gain-of-function missense mutation found in cancer patients, METTL14R298P, promotes malignant cell growth in culture and in transgenic mice. The mutant methyltransferase preferentially modifies noncanonical sites and transforms gene expression without increasing global m6A levels in mRNAs. The altered substrate specificity is intrinsic to METTL3-METTL14, helping us to propose a structural model for how the METTL3-METTL14 complex detects RNA sequences. Together, our work highlights that m6A location is important for function and that noncanonical methylation sites may impact aberrant gene expression and oncogenesis.

2024-12-21 | PXD039447 | Pride

Binding motif analysis of METTL3，WTAP in METTL3，WTAP overexpressed Human 293T cells

Project description:label the cells overexpressed Myc tagged METTL3 and Flag tagged WTAP with 4-SU, the RNA bound by METT3,WTAP can be got by Myc or Flag IP followed by RNA isolation by using the TRIzol (Invitrogen) reagent by following the company manual.the RNA was then used for library preparation using a TruSeq™ RNA Sample Prep Kit v2 (Illumina, San Diego, CA, USA) according to the manufacturer’s protocol.The libraries were sequenced using HiSeq2000 (Illumina) in single-read mode, creating reads with a length of 50 bp. Sequencing chemistry v2 (Illumina) was used and samples were multiplexed in two samples per lane. discovery of the binding motif of METTL3，WTAP in METTL3，WTAP overexpressed Human 293T cells

2014-01-16 | E-GEOD-50580 | biostudies-arrayexpress

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