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Nuclear m6A Reader YTHDC1 Promotes Muscle Stem Cell Activation/Proliferation by Regulating mRNA Splicing and Nuclear Export [RNA-seq]

ABSTRACT: Nuclear m6A Reader YTHDC1 Promotes Muscle Stem Cell Activation/Proliferation by Regulating mRNA Splicing and Nuclear Export

ORGANISM(S): Mus musculus

PROVIDER: GSE210125 | GEO | 2023/03/20

REPOSITORIES: GEO

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Nuclear m6A Reader YTHDC1 Promotes Muscle Stem Cell Activation/Proliferation by Regulating mRNA Splicing and Nuclear Export [LACE-seq]

Project description:Nuclear m6A Reader YTHDC1 Promotes Muscle Stem Cell Activation/Proliferation by Regulating mRNA Splicing and Nuclear Export

2023-03-20 | GSE210126 | GEO

Structural basis of YTH domain as m6A reader

Project description:The N6-methyladenosine (m6A) is the most abundant internal modification in almost all eukaryotic messenger RNAs, and is dynamically regulated. Therefore, identification of m6A readers is especially important in determining the cellular function of m6A. YTHDF2 has recently been characterized as the first m6A reader that regulates the cytoplasmic stability of methylated RNA. Here we show that YTHDC1 is a nuclear m6A reader and report the crystal structure of the YTH domain of YTHDC1 bound to m6A-containing RNA. We further determined the structure of another YTH domain, YTHDF1, and found that the YTH domain utilizes a conserved aromatic cage to specifically recognize the methyl group of m6A. Our structural characterizations of the YTHDC1-m6A RNA complex also shed light on the molecular basis for the preferential binding of the GG(m6A)C sequence by YTHDC1 and confirm the YTH domain as a specific m6A RNA reader. PAR-CLIP (Photoactivatable-Ribonucleoside-Enhanced Crosslinking and Immunoprecipitation) was applied to human YTHDC1 protein to identify its binding sites.

2014-09-18 | E-GEOD-58352 | biostudies-arrayexpress

RNA N6-methyladenosine reader YTHDC1 is essential for TGF-beta-mediated metastasis of triple negative breast cancer [m6A-Seq]

Project description:RNA N6-methyladenosine (m6A) modification and its regulators fine tune gene expression and contribute to tumorigenesis. Here, we uncover the oncogenic role and mechanism of YTHDC1, an m6A reader positively correlated to poor prognosis in breast cancer patients. In a mammary fat pad mouse model, YTHDC1 significantly promoted lung metastasis of triple negative breast cancer (TNBC) cells. Using transcriptome-wide sequencing techniques, we found dysregulation of metastasis-related pathways following YTHDC1 depletion and demonstrated that YTHDC1 is critical for nuclear export of SMAD3 mRNA. YTHDC1 depletion desensitizes TNBC cells to TGF-β, resulting in impaired TGF-β-induced gene signature and inhibition on epithelial-mesenchymal transition (EMT) and cell migration/invasion, which could be at least partially restored by SMAD3 overexpression. Furthermore, we show that the ability of YTHDC1 to recognize m6A on SMAD3 RNA is important for its oncogenic role. Collectively, our study unravels YTHDC1 as vital for distant TNBC metastasis by promoting TGF-β-mediated EMT via SMAD3.

2023-03-25 | GSE193155 | GEO

Nuclear m6 A reader YTHDC1 suppresses proximal alternative polyadenylation sites by interfering with the 3' processing machinery

Project description:N6-methyladenosine (m6 A) and alternative polyadenylation (APA) are important regulators of gene expression in eukaryotes. Recently, it was found that m6 A is closely related to APA. However, the molecular mechanism of this new APA regulation remains elusive. Here, we show that YTHDC1, a nuclear m6 A reader, can suppress proximal APA sites and produce longer 3' UTR transcripts by binding to their upstream m6 A sites. YTHDC1 can directly interact with the 3' end processing factor FIP1L1 and interfere with its ability to recruit CPSF4. Binding to the m6 A sites can promote liquid-liquid phase separation of YTHDC1 and FIP1L1, which may play an important role in their interaction and APA regulation. Collectively, YTHDC1 as an m6 A "reader" links m6 A modification with pre-mRNA 3' end processing, providing a new mechanism for APA regulation.

2022-03-11 | GSE198143 | GEO

RNA N6-methyladenosine reader YTHDC1 is essential for TGF-beta-mediated metastasis of triple negative breast cancer [RIP-Seq]

2023-03-25 | GSE193154 | GEO

RNA N6-methyladenosine reader YTHDC1 is essential for TGF-beta-mediated metastasis of triple negative breast cancer [RNA-Seq]

2023-03-25 | GSE193153 | GEO

A Critical Role of Nuclear m6A Reader YTHDC1 in Leukemogenesis by Regulating MCM Complex-Mediated DNA Replication

Project description:PLKO.1 lentiviral vectors contained scramble shRNA, YTHDC1 shRNA 1# and YTHDC1 shRNA 2# were transfected into 293T cells together with package plasmids pMDG.2 and Δ8.91. The supernatant medium contained virus was collected and subjected to infect MOLM-13 cells by spinoculation, MOLM-13 cell is an AML cell line. The positive cells were collected 3 days after viral infection and subjected to RNA-seq.

2021-06-25 | GSE178859 | GEO

Structural basis of YTH domain as m6A reader

2014-09-18 | GSE58352 | GEO

A Critical Role of Nuclear m6A Reader YTHDC1 in Leukemogenesis by Regulating MCM Complex-Mediated DNA Replication

Project description:A Critical Role of Nuclear m6A Reader YTHDC1 in Leukemogenesis by Regulating MCM Complex-Mediated DNA Replication

| PRJNA741248 | ENA

The RNA m6A reader YTHDC1 silences retrotransposons and guards ES cell identity

Project description:The RNA modification N6-methyladenosine (m6A) has critical roles in many biological processes. However, the function of m6A in the early phase of mammalian development remains poorly understood. Here we show that the m6A reader YT521-B homology-domain-containing protein 1 (YTHDC1) is required for the maintenance of mouse embryonic stem (ES) cells in an m6A-dependent manner, and that its deletion initiates cellular reprogramming to a 2C-like state. Mechanistically, YTHDC1 binds to the transcripts of retrotransposons (such as intracisternal A particles, ERVK and LINE1) in mouse ES cells and its depletion results in the reactivation of these silenced retrotransposons, accompanied by a global decrease in SETDB1-mediated trimethylation at lysine 9 of histone H3 (H3K9me3). We further demonstrate that YTHDC1 and its target m6A RNAs act upstream of SETDB1 to repress retrotransposons and Dux, the master inducer of the two-cell stage (2C)-like program. This study reveals an essential role for m6A RNA and YTHDC1 in chromatin modification and retrotransposon repression. This SuperSeries is composed of the SubSeries listed below.

2021-01-24 | GSE146467 | GEO

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