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Identification of ALKBH5 targets in osteosarcoma by methyl RNA immunoprecipitation [MeRIP-seq]

ABSTRACT: To identify potential target mRNAs that are demethylated by ALKBH5, meRIP-seq with a m6A antibody was conducted in 143B osteosarcoma cells transfected with scrambled or ALKBH5-siRNA.

ORGANISM(S): Homo sapiens

PROVIDER: GSE154529 | GEO | 2022/06/28

REPOSITORIES: GEO

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

Project description:To identify target genes regulated by ALKBH5 in osteosarcoma, we silenced the expression of ALKBH5 in osteosarcoma cell line-143B and tested its effect on 143B transcriptome.

2022-06-28 | GSE154528 | GEO

Identification of ALKBH5 targets in osteosarcoma by methyl RNA immunoprecipitation [MeRIP-seq]

Project description:Identification of ALKBH5 targets in osteosarcoma by methyl RNA immunoprecipitation [MeRIP-seq]

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Methylated RNA immunoprecipitation sequencing (MeRIP-seq) of human epidermis and HaCAT cells with or without ALKBH5 knockdown

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ALKBH5 promotes tumor progression by decreasing RIG-I expression mediated by N6-methyladenosine-dependent HNRNPC binding in HNSCC [MeRIP-seq]

Project description:To determine the targets underlying ALKBH5 during head and neck squamouse cell carcinoma progression, Methylated RNA immunoprecipitation (MeRIP) with an m6A specific antibody followed by RNA sequencing (MeRIP-seq) and next generation sequencing were combined to screen the potential targets haboring m6A modificatios and mRNA level alteration after ALKBH5 knockdown in a HNSCC cell line.

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Gene regulation by m6A demethylase ALKBH5 in U2OS osteosarcoma

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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

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

Genome-wide maps of m6a state in RA FLSs with or without ALKBH5 knockdown.

Project description:To investigate how ALKBH5 modulates RA FLSs functions, we conducted m6A sequencing (MeRIP-seq) of RA FLSs. Consistent with previous studies, in both scramble controls and ALKBH5 knockdown cells, m6A modifications were highly enriched within the GGAC motif. m6A peaks are located mainly in the protein-coding region (CDS) and 3’ untranslated region (3’ UTR) of mRNA transcripts

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Effect of knockout of ALKBH5 on gene expression and m6A modifications during IRI in mice

Project description:To identify the direct m6A demethylation targets of ALKBH5 at the onset of renal IRI, we performed methylated RNA immunoprecipitation sequencing (MeRIP-seq) and RNA sequencing (RNA-seq) using RNA isolated from IRI mouse kidney of WT and KO mice 24h after I/R (WT n=3 vs. KO n=3)

2023-02-05 | GSE224289 | GEO

Mapping the targeting transcripts and binding sites of ALKBH5 by individual-nucleotide resolution UV crosslinking and immunoprecipitation-based sequencing (iCLIP-seq)

Project description:To investigate whether the ALKBH5-mediated metabolic changes via demethylation of its target mRNA(s) is important in regulating viral response, we mapped the targeting transcripts and binding sites of ALKBH5 in the virus infected cells and uninfected cells by using iCLIP-seq. Biological replicates of iCLIP-seq confirmed that OGDH is the direct targeting transcript of ALKBH5 and the binding capacity of ALKBH5 to OGDH mRNA was decreased upon viral infection. By combining the ALKBH5-iCLIP-seq results with m6A-seq data, we identified that there are overlapped ALKBH5-iCLIP peaks and m6A-seq peaks on OGDH mRNA. Furthermore, other mRNAs, such as GOT2 mRNA, were also the ALKBH5’s targeting transcripts and m6A demethylation substrates. GOT2 is an important metabolic enzyme well known to be involved in host response to viral infection. These data demonstrated that ALKBH5-mediated metabolic rewiring via demethylation of target OGDH mRNA and other transcripts is important in regulating cellular viral replication.

2019-08-22 | GSE134754 | GEO

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