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The m6A Demethylase ALKBH5 Maintains Stemness and Therapeutic Resistance of Glioblastoma Stem Cells [Polysome-seq]

ABSTRACT: The m6A Demethylase ALKBH5 Maintains Stemness and Therapeutic Resistance of Glioblastoma Stem Cells [Polysome-seq]

PROVIDER: PRJNA1204321 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR31853473_1.fastq.gz	Fastqsanger.gz
	SRR31853473_2.fastq.gz	Fastqsanger.gz
	SRR31853474_1.fastq.gz	Fastqsanger.gz
	SRR31853474_2.fastq.gz	Fastqsanger.gz
	SRR31853475_1.fastq.gz	Fastqsanger.gz

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The m6A Demethylase ALKBH5 Maintains Stemness and Therapeutic Resistance of Glioblastoma Stem Cells [Polysome-seq]

Project description:One prevalent modification, N6-methyladenosine (m6A), is a dynamic and reversible process regulated by methyltransferases (the "writers"), demethylases (the "erasers"), and m6A-binding proteins (the "readers"). Its abnormal changes are closely associated with the development and progression of human cancers. m6A demethylases, such as FTO and ALKBH5, eliminate the m6A modification from RNA, thus regulating the overall levels of this modification. Here, we show that the m6A demethylase ALKBH5 is highly expressed after ionizing radiation treatment. We conducted polysome profiling alongside RNA sequencing in both control and ALKBH5-KO GSC 83 cells and identified genes with differential translational efficiency due to ALKBH5 KO. We further elucidated that genes, whose translational efficiencies (TEs) were down-regulated after ALKBH5 knockout, were enriched in stemness properties and DNA repair. Overall, our findings imply that ALKBH5 facilitates the selective translation of mRNAs encoding pathways related to stemness and resistance to therapeutic interventions.

2025-01-06 | GSE285535 | GEO

ALKBH5 is a New Mammalian RNA Demethylase

Project description:N6-methyladenosine (m6A) is the most prevalent internal modification of messenger RNA (mRNA) in higher eukaryotes. Here we report ALKBH5 as a new mammalian demethylase that oxidatively removes the m6A modification in mRNA in vitro and inside cells. This demethylation activity of ALKBH5 significantly affects mRNA export and RNA metabolism as well as the assembly of mRNA processing factors in nuclear speckles. Alkbh5-deficient male mice are characterized by impaired fertility resulting from apoptosis that affects meiotic metaphase-stage spermatocytes. In accordance with this defect, we have identified in mouse testes 1552 differentially expressed genes which cover broad functional categories and include spermatogenesis-related mRNAs involved in the p53 functional interaction network. We show that Alkbh5-deficiency impacts the expression levels of some of these mRNAs, supporting the observed phenotype. The discovery of this new RNA demethylase strongly suggests that the reversible m6A modification plays fundamental and broad functions in mammalian cells. RNA-seq in two cell types

2013-02-15 | E-GEOD-40132 | biostudies-arrayexpress

Chromatin state maintains human myeloid leukemia by regulating m6A demethylase ALKBH5 expression [RNA-Seq]

Project description:ALKBH5 is the RNA N(6)-methyladenosine (m6A) demethylase. To under sthand the function and mechnism of ALKBH5 in human acute myeloid leukemia, we compared the m6A profiling in wild-type, ALKBH5-knock-down, and ALKBH5 rescue THP1 cells.

2020-05-27 | GSE128574 | GEO

Chromatin state maintains human myeloid leukemia by regulating m6A demethylase ALKBH5 expression [m6A-seq]

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Chromatin state maintains human myeloid leukemia by regulating m6A demethylase ALKBH5 expression [Ribo-seq]

Project description:ALKBH5 is the RNA N(6)-methyladenosine (m6A) demethylase. To understhand the function and mechnism of ALKBH5 in human acute myeloid leukemia, we compared the translational efficiency in wild-type and ALKBH5-knock-down THP1 cells.

2020-05-27 | GSE146849 | GEO

Chromatin state maintains human myeloid leukemia by regulating m6A demethylase ALKBH5 expression [Slam-seq]

Project description:ALKBH5 is the RNA N(6)-methyladenosine (m6A) demethylase. To understhand the function and mechnism of ALKBH5 in human acute myeloid leukemia, we compared the RNA decay rate in wild-type and ALKBH5-knock-down THP1 cells.

2020-05-27 | GSE146874 | GEO

Chromatin state maintains human myeloid leukemia by regulating m6A demethylase ALKBH5 expression [ATAC-seq]

Project description:ALKBH5 is the RNA N(6)-methyladenosine (m6A) demethylase. To understhand the function and mechnism of ALKBH5 in human acute myeloid leukemia, we compared the translational efficiency in wild-type and ALKBH5-knock-down MOLM-13 cells.

2020-05-27 | GSE146831 | GEO

Chromatin state maintains human myeloid leukemia by regulating m6A demethylase ALKBH5 expression

Project description:Chromatin state maintains human myeloid leukemia by regulating m6A demethylase ALKBH5 expression

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ALKBH5 is a New Mammalian RNA Demethylase

2013-02-15 | GSE40132 | GEO

RNA demethylase ALKBH5 promotes tumorigenesis in multiple myeloma [m6A-seq]

Project description:We here report ALKBH5, a m6A RNA demethylase, as a crucial oncogene in multiple myeloma (MM). Using various MM models, we demonstrated a critical requirement of ALKBH5 for MM cell proliferation in vitro and in vivo. To identify the potential mRNA targets of ALKBH5, we conducted m6A-seq with mRNA samples enriched from MM cells with or without ALKBH5 knockdown.

2022-07-07 | GSE180207 | GEO

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