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MYC Promotes Cancer Progression by Modulating m6A Modification to Suppress Target Gene Translation

ABSTRACT: MYC Promotes Cancer Progression by Modulating m6A Modification to Suppress Target Gene Translation

PROVIDER: PRJNA634001 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11816542_1.fastq.gz	Fastqsanger.gz
	SRR11816542_2.fastq.gz	Fastqsanger.gz
	SRR11816543_1.fastq.gz	Fastqsanger.gz
	SRR11816543_2.fastq.gz	Fastqsanger.gz
	SRR11816544_1.fastq.gz	Fastqsanger.gz

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m6A modification regulates lung fibroblast-to-myofibroblast transition through modulating KCNH6 mRNA translation

Project description:In summary, we characterized the role of m6A modification in pulmonary fibrosis. We reveal that m6A modification is increased in bleomycin induced pulmonary fibrosis mice model, FMT-derived myofibroblasts and idiopathic pulmonary fibrosis patient lung samples. Lowering m6A level through silencing METTL3 suppress FMT process in vitro and vivo. Fundamentally, m6A modification regulates FMT by modulating the translation of KCNH6 mRNA in a YTHDF1 dependent manner. This study provides novel insights into the mechanism of FMT process and suggests m6A modification intervention may be a promising therapeutic strategy for pulmonary fibrosis.

2021-06-02 | GSE164151 | GEO

MYC Promotes Cancer Progression by Modulating m6A Modification to Suppress Target Gene Translation

Project description:N6-Methyladenosine (m6A) is the most prevalent internal modification in mammalian mRNAs, and participates in various fundamental bioprocesses as well as cancer. Here we immunoprecipitated m6A methylated poly (A+) RNAs (MeRIP) and then sequenced and profiled mRNA m6A methylation in P493-6 cells.

2020-12-18 | GSE150892 | GEO

MYC Promotes Cancer Progression by Modulating m6A Modifications to Suppress Target Gene Translation

Project description:The MYC oncoprotein activates and represses gene expression in a transcription-dependent or -independent manner. Modification of mRNA emerges as a key gene expression regulatory nexus. We sought to determine whether MYC alters mRNA modifications and report here that MYC promotes cancer progression by down-regulating N6-methyladenosine (m6A) preferentially in transcripts of a subset of MYC-repressed genes (MRGs). We find that MYC activates the expression of ALKBH5 and reduces m6A levels in the mRNA of the selected MRGs SPI1 and PHF12. We also show that MYC-regulated m6A controls the translation of MRG mRNA via the specific m6A reader YTHDF3. Finally, we find that inhibition of ALKBH5, or overexpression of SPI1 or PHF12, effectively suppresses the growth of MYC-deregulated B-cell lymphomas, both in vitro and in vivo. Our findings uncover a novel mechanism by which MYC suppresses gene expression by altering m6A modifications in selected MRG transcripts promotes cancer progression.

| S-SCDT-EMBOR-2020-51519-T | biostudies-other

m6A modification regulates lung fibroblast-to-myofibroblast transition through modulating KCNH6 mRNA translation

Project description:m6A modification regulates lung fibroblast-to-myofibroblast transition through modulating KCNH6 mRNA translation

| PRJNA689296 | ENA

A m6A methyltransferase fine-tune m6A modification and ubiquitination to balance antiviral immunity and yield

Project description:Posttranscriptional and posttranslational modifications play crucial roles in plant immunity. However, how plant fine-tune these two modifications to activate antiviral immunity remains unknown. Here, we report that the m6A methyltransferase TaHAKAI is utilized by wheat yellow mosaic virus (WYMV) to increase viral genomic m6A modification and promotes viral replication. However, TaHAKAI also functions as an E3 ligase that targets the viral RNA silencing suppressor P2 for degradation and inhibits viral infection. A major allele of TaHAKAI in susceptible cultivar reduced the E3 ligase activity but not m6A methyltransferase activity, promoting viral infection. Interestingly, TaHAKAIR attenuates the mRNA stability of TaWPS1, the negative regulator of spike development, to increase panicle length and spikelet number by modulating its m6A modification. Our study reveals a new mechanisms of balancing disease resistance and yield by fine-tuning m6A modification and ubiquitination.

2024-10-09 | PXD056650 | Pride

m6A RNA modification controls cell fate transition in mammalian embryonic stem cells

Project description:N6-methyl-adenosine (m6A) is the most abundant modification on messenger RNAs and is linked to human diseases, but its functions in mammalian development are poorly understood. Here we reveal the evolutionary conservation and function of m6A by mapping the m6A methylome in mouse and human embryonic stem cells. Thousands of messenger and long noncoding RNAs show conserved m6A modification, including transcripts encoding core pluripotency transcription factors. m6A is enriched over 3M-bM-^@M-^Y untranslated regions at defined sequence motifs, and marks unstable transcripts, including transcripts turned over upon differentiation. Genetic inactivation or depletion of mouse and human Mettl3, one of the m6A methylases, led to m6A erasure on select target genes, prolonged Nanog expression upon differentiation, and impaired ESCM-bM-^@M-^Ys exit from self-renewal towards differentiation into several lineages in vitro and in vivo. Thus, m6A is a mark of transcriptome flexibility required for stem cells to differentiate to specific lineages. Examing m6A modification differences in two different cell types

2014-10-20 | E-GEOD-52600 | biostudies-arrayexpress

m6A modification profile in primary microglia with/without Igf2bp1 knockdown

Project description:Our study demonstrated that the expression of Igf2bp1 in activated microglia was significantly up-regulated, implying a role of Igf2bp1 in LPS-induced m6A modifications in microglia. To understand the roles of Igf2bp1 on LPS-induced m6A modification in microglia, we performed Igf2bp1 loss-of-function (LOF) approach. Microglia stimulated by LPS were transfected with either scrambled siRNA control or Igf2bp1 siRNA for 48 hours. To m6A modification profiles in control and Igf2bp1 LOF microglia were determined by MeRIP-seq analysis.

2022-12-31 | E-MTAB-11411 | biostudies-arrayexpress

m6A RNA Methylation Is Regulated by MicroRNAs and Promotes Reprogramming to Pluripotency

Project description:N6-methyladenosine (m6A) has been recently identified as a conserved epitranscriptomic modification of eukaryotic mRNAs, but its features, regulatory mechanisms, and functions in cell reprogramming are largely unknown. Here, we report m6A modification profiles in the mRNA transcriptomes of four cell types with different degrees of pluripotency. Comparative analysis reveals several features of m6A, especially gene- and cell-type-specific m6A mRNA modifications. We also show that microRNAs (miRNAs) regulate m6A modification via a sequence pairing mechanism. Manipulation of miRNA expression or sequences alters m6A modification levels through modulating the binding of METTL3 methyltransferase to mRNAs containing miRNA targeting sites. Increased m6A abundance promotes the reprogramming of mouse embryonic fibroblasts (MEFs) to pluripotent stem cells; conversely, reduced m6A levels impede reprogramming. Our results therefore uncover a role for miRNAs in regulating m6A formation of mRNAs and provide a foundation for future functional studies of m6A modification in cell reprogramming. m6A-seq in ESC, iPSC, NSC and sertoli cells.

2015-03-10 | E-GEOD-52125 | biostudies-arrayexpress

m6A RNA modification controls cell fate transition in mammalian embryonic stem cells (RNA methylation)

Project description:Here we determine the map of RNA methylation (m6A) in mouse embrionic stem cells, and Mettl3 knock out cells Examination of m6A modification sites on the transcriptome of mouse Embryonic stem cells and Embryonic Mettl3 knock out cells, using a m6A specific antibody.

2014-10-16 | E-GEOD-52662 | biostudies-arrayexpress

m6A in 5â untranslated regions promotes cap-independent translation of mRNA

Project description:N6-methyladenosine (m6A) is a widespread internal RNA modification whose function is poorly understood. Here we report that m6A residues within the 5'UTR promote a novel form of cap-independent translation which is mediated through an interaction between m6A residues and the translation initiation factor, eIF3. We present eIF3a PAR-iCLIP data which demonstrate that eIF3 predominantly binds mRNAs within the 5'UTR. eIF3 binding sites are also in proximity to m6A residues within the 5'UTR of cellular mRNAs. Two replicates of eIF3a PAR-iCLIP in HEK293T cells.

2015-10-26 | E-GEOD-73405 | biostudies-arrayexpress

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