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Mettl14-mediated m6A modification enhances the function of Foxp3+ regulatory T cells and promotes allograft acceptance

ABSTRACT: Mettl14-mediated m6A modification enhances the function of Foxp3+ regulatory T cells and promotes allograft acceptance

PROVIDER: PRJNA889928 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21883637_1.fastq.gz	Fastqsanger.gz
	SRR21883637_2.fastq.gz	Fastqsanger.gz
	SRR21883638_1.fastq.gz	Fastqsanger.gz
	SRR21883638_2.fastq.gz	Fastqsanger.gz

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Mettl14-mediated m6A modification enhances the function of Foxp3+ regulatory T cells and promotes allograft acceptance

Project description:The transcripts levels of 434 genes were upregulated and those of 277 genes were downregulated in Treg cells from Foxp3-Mettl14f/+ cKO mice compared to those genes in Treg cells from the littermate controls.

2022-11-09 | GSE215371 | GEO

Mettl14-mediated m6A modification enhances the function of Foxp3<sup>+</sup> regulatory T cells and promotes allograft acceptance.

Project description: Not available

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Type 1 Classical Dendritic Cells Govern Long-Term Cardiac Allograft Acceptance

Project description:Type 1 Classical Dendritic Cells Govern Long-Term Cardiac Allograft Acceptance

| PRJNA1259371 | ENA

METTL14 regulates neuroblastoma through the m6A modification

Project description:METTL14 regulates neuroblastoma through the m6A modification

| PRJNA1022448 | ENA

METTL14-mediated N6-methyladenosine modification of Col17a1/Itgα6/Itgβ4 governs epidermal homeostasis [MeRIP-seq]

Project description:To elucidate the role of METTL14-mediated m6A modification in epidermal development, we conditionally knocked out the m6A methyltransferase METTL14 in mouse epidermal keratinocytes. We then performed MeRIP-seq analysis of epidermal keratinosis from P0 control mice (K14Cre,Mettl14F/+).

2023-12-31 | GSE246652 | GEO

METTL14-mediated N6-methyladenosine modification of Col17a1/Itgα6/Itgβ4 governs epidermal homeostasis [RNA-Seq]

Project description:To elucidate the role of METTL14-mediated m6A modification in epidermal development, we conditionally knocked out the m6A methyltransferase METTL14 in mouse epidermal keratinocytes. We then performed RNA-seq analysis of epidermal keratinosis from P0 control mice (K14Cre,Mettl14F/+) and cKO mice (K14CreMettl14F/F).

2023-12-31 | GSE246720 | GEO

METTL14-mediated N6-methyladenosine modification of Col17a1/Itgα6/Itgβ4 governs epidermal homeostasis [Ribo-Seq]

Project description:To elucidate the role of METTL14-mediated m6A modification in epidermal development, we conditionally knocked out the m6A methyltransferase METTL14 in mouse epidermal keratinocytes. We then performed ribosome-profiling analysis of epidermal keratinosis from P0 control mice (K14Cre,Mettl14F/+) and cKO mice (K14CreMettl14F/F).

2023-12-31 | GSE246653 | GEO

Mettl14-dependent m6A modification controls iNKT cells development and function by regulating p53-dependent apoptosis pathway and TCR signaling

Project description:N6-methyladenosine (m6A) is the most common modification to mRNA in mammalian cells linked to development and disease. m6A controls CD4+ T cell homeostasis by targeting the IL-7/STAT5/SOCS family pathway and sustains Treg suppressive function. However, the role of m6A modification in non-conventional T cell development and function remains unknown. Here we showed that m6A modification was indispensable for NKT cell homeostasis using mice with T cell-specific deletion of RNA methylation writer METTL14 (T-Mettl14-/-). Loss of METTL14-dependent m6A modification led to the upregulation of p53-mediated apoptosis in double-positive (DP) thymocytes. The decreased lifespan of DP thymocytes reduced the efficiency of distal Va-Ja rearrangement, including the invariant Va14-Ja18 TCR, and therefore led to a profound decrease in the iNKT cell population. The residual iNKT cells in T-Mettl14-/- mice exhibited increased apoptosis and impaired maturation. In addition, loss of METTL14 upregulated Cish expression, which contributed to decreased proliferative response to IL-2 and IL-15 and impaired cytokine production upon TCR stimulation in METTL14-deficient iNKT cells. Furthermore, knocking down METTL14 in mature iNKT cells diminished their cytokine production, correlated with increased Cish expression and decreased TCR signaling. Collectively, our data reveals a critical role for METTL14- dependent-m6A modification in iNKT cell development and function, highlighting the need to take this effect into consideration for targeting m6A pathway in therapeutic settings.

2022-03-01 | GSE189339 | GEO

Alloantigen-Induced Regulatory T Cells Generated in Presence of Vitamin C Display Enhanced Stability of Foxp3 Expression and Promote Skin Allograft Acceptance

Project description:Regulatory T cells (Tregs) are critical for the maintenance of immune homeostasis and self‑tolerance, and can be therapeutically used for prevention of unwanted immune responses such as allotransplant rejection. Tregs are characterized by the expression of the transcription factor Foxp3, and recent work suggested that epigenetic imprinting of Foxp3 and other Treg‑specific epigenetic signatures genes is crucial for the stabilization of both Foxp3 expression and immunosuppressive properties within Tregs. Lately, Vitamin C was reported to enhance the activity of enzymes of the ten‑eleven‑translocation family, thereby fostering the demethylation of Foxp3 and other Treg‑specific epigenetic signatures genes in developing Tregs. Here, we in vitro generated alloantigen‑specific Foxp3+ Tregs (allo‑iTregs) in presence of vitamin C, and those Tregs showed a pronounced demethylation of Foxp3 and other Treg‑specific epigenetic signatures genes, accompanied with an enhanced stability of Foxp3 expression. However, RNA‑seq analysis revealed an only minor impact of Vitamin C on the transcriptome of allo‑iTregs. Importantly, when being tested in vivo in a highly immunogenic skin transplantation model vitamin C‑treated allo‑iTregs showed a superior suppressive capacity as compared to allo‑iTregs generated in absence of vitamin C. Together, our results might pave the way for the establishment of novel protocols for the in vitro generation of allo‑antigen specific Foxp3+ Tregs for therapeutic usage in transplantation medicine.

2017-06-22 | GSE96960 | GEO

METTL14 regulates neuroblastoma through the m6A modification

Project description:RNA methylation is involved in the regulation of cell response and cell fate, and is closely related to the development of tumors. METTL14 is considered to be a m6A methyltransferase. Studies have found that METTL14 is associated with the occurrence and development of a variety of tumors, but the mechanism in neuroblastoma is not clear. The expression of METTL14 in high risk patients was significantly higher than that in low risk patients. Interference with METTL14 expression in SK-N-BE(2) cells significantly interfered with cell cycle and inhibited cell proliferation, migration and invasion. In neuroblastoma, METTL14 activates the PI3K/AKT signaling pathway by targeting YWHAH by upregulating m6A levels in mRNA transcripts. In all findings, it was suggested that METTL14 has a cancer-promoting function in neuroblastoma.

2024-05-10 | GSE244350 | GEO

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