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Gene regulation by m6A demethylase ALKBH5 in osteosarcoma [RNA-seq]

ABSTRACT: Gene regulation by m6A demethylase ALKBH5 in osteosarcoma [RNA-seq]

PROVIDER: PRJNA646540 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR12232921.fastq.gz	Fastqsanger.gz
	SRR12232922.fastq.gz	Fastqsanger.gz
	SRR12232923.fastq.gz	Fastqsanger.gz
	SRR12232924.fastq.gz	Fastqsanger.gz

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Gene regulation by m6A demethylase ALKBH5 in osteosarcoma

Project description:Gene regulation by m6A demethylase ALKBH5 in osteosarcoma

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Gene regulation by m6A demethylase ALKBH5 in U2OS osteosarcoma

Project description:To identify target genes regulated by ALKBH5 in osteosarcoma, we silenced the expression of ALKBH5 in osteosarcoma cell line-U2OS and tested its effect on U2OS transcriptome.

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Gene regulation by m6A demethylase ALKBH5 in osteosarcoma [RNA-seq]

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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

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

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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.

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

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m6A Demethylase ALKBH5 attenuates doxorubicin-induced cardiotoxicity via posttranscriptional stabilization of Rasal3

Project description:The clinical application of anthracyclines such as doxorubicin (DOX) is limited due to their cardiotoxicity. N6-methyladenosine (m6A) plays an essential role in numerous biological processes. However, the roles of m6A and m6A demethylase ALKBH5 in DOX-induced cardiotoxicity (DIC) remain unclear. In this research, DIC models were constructed using Alkbh5-knockout (KO), Alkbh5-knockin (KI), and Alkbh5-myocardial-specific knockout (ALKBH5flox/flox, αMyHC-Cre) mice. Cardiac function and DOX-mediated signal transduction were investigated. As a result, both Alkbh5 whole-body KO and myocardial-specific KO mice had increased mortality, decreased cardiac function, and aggravated DIC injury with severe myocardial mitochondrial damage. Conversely, ALKBH5 overexpression alleviated DOX-mediated mitochondrial injury, increased survival, and improved myocardial function. Mechanistically, ALKBH5 regulated the expression of Rasal3 in an m6A-dependent manner through posttranscriptional mRNA regulation and reduced Rasal3 mRNA stability, thus activating RAS3, inhibiting apoptosis through the RAS/RAF/ERK signaling pathway, and alleviating DIC injury. These findings indicate the potential therapeutic effect of ALKBH5 on DIC.

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