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Identification of Mettl3-dependent m6A-modified mRNAs upon DNA-damage

ABSTRACT: Identification of Mettl3-dependent m6A-modified mRNAs upon DNA-damage

PROVIDER: PRJNA716308 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR14035760.fastq.gz	Fastqsanger.gz
	SRR14035761.fastq.gz	Fastqsanger.gz
	SRR14035762.fastq.gz	Fastqsanger.gz
	SRR14035763.fastq.gz	Fastqsanger.gz

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Similar Datasets

Identification of Mettl3-dependent m6A-modified mRNAs upon DNA-damage

Project description:The goal of the study was to identify those mRNAs that are m6A-modified in a Mettl3-dependent manner under DNA-damage condition in oncogene-expressing mouse embryonic fibroblasts

2022-07-07 | GSE169343 | GEO

Mettl3/m6A promotes translation of pathogenic mRNAs to mediate cystogenesis in mouse models of ADPKD

Project description:Purpose: Determine the differential m6A methylation pattern of Mettl3 between wildtype, Pkd1F/RC-KO and Pkd1F/RC-Mettl3-DKO mouse kidneys. Methods: m6A RNA IP using the Magna MeRIP™ m6A Kit (EMD Millipore, catalog #17-10499) was performed on P18 wildtype, Pkd1F/RC-KO and Pkd1F/RC-Mettl3-DKO mouse kidney samples. Two biological replicate samples from each genotype were sequenced. Each sample was a pool of 6 kidneys of the same genotype. The input samples were also sequenced to obtain mRNA profiles. Results: 133 mRNAs were found to be differentially hypermethylated in the Pkd1-KO kidneys compared to the control kidneys and differentially hypomethylated in the Pkd1-Mettl3-DKO kidneys compared to the Pkd1-KO kidneys. Two key pathogenic mRNAs namely, c-Myc and Avpr2 were identified and validated as Mettl3 targets. The mRNA transcript levels were unchanged between Pkd1-KO and Pkd1-Mettl3-DKO kidneys. Conclusion: Mettl3/m6A promotes translation of pathogenic mRNAs to mediate cystogenesis in mouse models of ADPKD.

2021-02-03 | GSE165956 | GEO

METTL3 preferentially enhances non-m6A translation of epigenetic factors and promotes tumorigenesis (eCLIP-seq)

Project description:Methyltransferase-like 3 (METTL3) is the predominant catalytic enzyme which forms a stable complex with METTL14 and WTAP to promote m6A methylation in the nucleus. Recently, accumulating evidence has shown that METTL3 can express in the cytoplasm but the function of cytoplasmic METTL3 is not fully understood. Here, we demonstrated that METTL3 inhibition significantly delayed tumorigenesis in gastric cancer both in and ex vivo. Surprisingly, our data revealed that METTL3 could not only facilitate cancer progression via mRNA m6A modification, but also bind to numerous non-m6A-modified mRNAs, suggesting an unexpected role of METTL3 that was independent of m6A modification. Mechanistically, cytoplasm-anchored METTL3 interacted with poly(A) binding protein cytoplasmic 1 (PABPC1) to stabilize its association with cap-binding complex eIF4F, which preferentially promoted the translation of epigenetic factors without m6A modification. Clinical investigation using both xenograft models and patient samples showed that cytoplasmic distributed METTL3 was highly correlated with gastric cancer progression, and this finding could be expanded in prostate cancer patients. We therefore propose that cytoplasmic METTL3 enhances the translation of both m6A and non-m6A-modified epigenetic mRNAs thus serves as an oncogenic driver in cancer progression, and METTL3 subcellular distribution can assist diagnose and predict prognosis for cancer patients.

2022-05-16 | GSE191170 | GEO

Mettl3-m6A-YTHDF1 axis promotion of mitochondrial dysfunction in metabolic dysfunction–associated steatotic liver disease (MASLD)

Project description:The N6-methyladenosine (m6A) mRNA modification and the mitochondrial respiratory chain (MRC) hold paramount importance in the advancement of MASLD. This study thoroughly investigates the relationship and impact of m6A mRNA modification and mitochondrial function in the progression of MASLD. Here we report that the mRNA and protein levels of mitochondrial respiratory chain (MRC) subunits showed inconsistent trends in vivo experiments. Abnormal m6A modification and mitochondrial dysfunction in MASLD were attributed to the upregulation of methyltransferase like 3 (Mettl3) and the downregulation of YTH N6-methyladenosine RNA binding protein 1 (YTHDF1) induced by high-fat foods. Mettl3 promoted the MRC's function. However, knockout of the reader protein YTHDF1, which plays a crucial role in the m6A modification process, counteracted the effect of Mettl3 and suppressed MRC. In MASLD, damage to the MRC may be regulated by the Mettl3-m6A-YTHDF1 complex axis, especially by the role of YTHDF1. Our research has offered a novel perspective on the involvement of m6A mRNA methylation in the pathogenesis of MASLD.

2024-09-20 | PXD047819 | Pride

METTL3-dependent m6A RNA Methylation Regulates Transposable Elements and Represses Human Naïve Pluripotency through Transposable Element-derived Enhancers

Project description:N6-methyladenosine (m6A) is the most prevalent mRNA modification with diverse regulatory roles in mammalian cells. While its functions are well-documented in mouse embryonic stem cells (mESCs), its role in human pluripotent stem cells (hPSCs) remains to be fully explored. METTL3 is the main enzyme responsible for m6A deposition. Here, using a METTL3 inducible knockout (iKO) system, we uncovered that, unlike in mESCs, METTL3 was indispensable for hPSC maintenance. Importantly, loss of METTL3 caused significant upregulation of pluripotency factors including naïve pluripotency genes and failure to exit pluripotency, thus impaired stem cell differentiation towards embryonic and extraembryonic cells including trophoblasts. Mechanistically, METTL3 iKO in hPSCs substantially increased expression and enhancer activities of two primate-specific transposable elements (TEs), SVA_D and HERVK/LTR5_Hs, which are normally modified by METTL3-dependent m6A. METTL3 loss activated SVA_D by lowering H3K9me3 deposition, and increased chromatin accessibility at LTR5_Hs through the naïve and other pluripotency factors. Conversely, we discovered that the activated SVA_D and LTR5_Hs loci positively regulated naïve gene expression by directly interacted with their promoters. These findings thus reveal that METTL3-dependent m6A RNA methylation has critical roles in suppressing TE expression and in the human pluripotency regulatory network.

2025-05-07 | PXD056046 | Pride

Identification of N6-methyladenosine (m6A) modified RNA in ILC2 of WT and Mettl3 Klrg1Cre mice

Project description:Innate lymphoid cells (ILCs) are able to directly respond to alarmin signals and produce an array of effector molecules for immune protection and tissue homeostasis. However, how posttranscriptional machinery in ILCs execute extracellular stimuli towards robust gene expression is yet to understand. Here, we reported a cell type-specific role of N6-methyladenosine (m6A) RNA methylation in ILCs. Inducible deletion of m6A methyltransferase METTL3 had little impact on ILC maintenance in the steady state or cytokine-induced ILC1 or ILC3 activation, but dramatically diminished IL-25-triggered ILC2 response. Specific deletion of Mettl3 in ILC2 significantly attenuated cell expansion, cytokine production, inter-organ migration, and anti-helminth immunity. To investigate the molecular mechanism by which m6A modification regulates ILC2 response, we subjected ILC2 of WT and Mettl3 Klrg1Cre mice to a m6A-tagged mRNA immunoprecipitation sequencing (meRIP-seq) to identify the m6A modified mRNA.

2023-06-26 | GSE223082 | GEO

Global m6A-modified mRNAs in the uterus of wild-type mouse

Project description:Global m6A-modified mRNAs in the uterus of wild-type mouse were analyzed by using methylated RNA immunoprecipitation sequencing (MeRIP-seq)

2022-11-18 | GSE211521 | GEO

m6A-modified RNAs in human amniotic epithelial stem cells derived-insulin-producing cells: Wild type vs. overexpressed METTL3 plasmid transfected

Project description:m6A-modified RNAs expression profiles of human amniotic epithelial stem cells differentiation into insulin-producing cells and comparing Wild type with overexpressed METTL3 plasmid transfected. Goal was to determine the effects of METTL3 transfection on mature insulin-producing cells gene expression.

2025-06-20 | GSE266983 | GEO

Global m6A-modified mRNAs in mouse uterus on gestational day 4 [meRIP-seq]

Project description:Global m6A-modified mRNAs in wild-type mouse uterus on gestational day 4 were analyzed by using methylated RNA immunoprecipitation sequencing (MeRIP-seq)

2024-04-12 | GSE263379 | GEO

Mettl3-dependent m6A modulation of mRNAs in the Drosophila brain attenuates the stress response

Project description:We observe the increase of stress resilience in Drosophila in which the m6A methyltransferase Mettl3 is knocked down. Mettl3-dependent m6A is present in the 5' UTR of genes enriched for neurogenesis and signaling pathways, and determine that Mettl3-dependent m6A regulates the decay of heat shock chaperones. Expression levels of genes with Mettl3-dependent m6A are increased with the reduction of Mettl3 and with heat shock stress in the brain.

2022-08-26 | GSE178955 | GEO

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