Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Decoding the interplay between m6A modification and stress granule stability by live-cell imaging

ABSTRACT: We present a spatiotemporal m6A imaging system (SMIS) that can monitor the m6A modification and the translation of mRNAs with high specificity and sensitivity in a single live cell. The SMIS system contains a m6A-modified reporter mRNA and fluorescence resonance energy transfer (FRET) biosensors. To quantify the methylation viariation achieved at m6A sites in the reporter mRNA after STM2457 treatment, a classical METTL3 inhibitor, we performed m6ACE-seq to measure the relative m6A level with single-base-resolusion.

ORGANISM(S): Homo sapiens

PROVIDER: GSE273366 | GEO | 2024/10/11

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

RNA-seq of human breast cancer cell line MDA-MB-231 treated with STM2457 against untreated controls

Project description:Here, we aim to investigate if catalytic inhibition of the m6A methyltransferase METTL3 by the small-molecule STM2457 may be a viable treatment option for TNBC.

2023-12-18 | E-MTAB-13184 | biostudies-arrayexpress

Heterochromatin protein 1 alpha (HP1α) undergoes a monomer to dimer transition that opens and compacts live cell genome architecture

Project description:Our understanding of heterochromatin nanostructure and its capacity to mediate gene silencing in a living cell has been prevented by the diffraction limit of optical microscopy. Thus, here to overcome this technical hurdle, and directly measure the nucleosome arrangement that underpins this dense chromatin state, we coupled fluorescence lifetime imaging microscopy (FLIM) of Förster resonance energy transfer (FRET) between histones core to the nucleosome, with molecular editing of heterochromatin protein 1 alpha (HP1α). Intriguingly, this super- resolved readout of nanoscale chromatin structure, alongside fluorescence fluctuation spectroscopy (FFS) and FLIM-FRET analysis of HP1α protein-protein interaction, revealed nucleosome arrangement to be differentially regulated by HP1α oligomeric state. Specifically, we found HP1α monomers to impart a previously undescribed global nucleosome spacing throughout genome architecture that is mediated by trimethylation on lysine 9 of histone H3 (H3K9me3) and locally reduced upon HP1α dimerisation. Collectively, these results demonstrate HP1α to impart a dual action on chromatin that increases the dynamic range of nucleosome proximity. We anticipate that this finding will have important implications for our understanding of how live cell heterochromatin structure regulates genome function.

2024-09-02 | GSE272234 | GEO

Live-animal imaging of native hematopoietic stem and progenitor cells

Project description:As the biology of hematopoietic stem cells (HSCs) has been predominantly studied under transplantation conditions, it has been challenging to study dynamic HSC behaviors in their native niche given under steady state conditions. Here, we describe the generation of a double knock-in fluorescent reporter that restricts the reporter labeling exclusively to the LT-HSC compartment. Single cell RNAseq comparing previously published LSK signatures (GEO: GSE90742) to our sorted fluorescently labeled cells (sorted without the use of any other cell surface markers) demonstrates that the fluorescently marked cells in our unique mouse model are exclusively found in the LT-HSC compartment in terms of their overal RNA content. This confirms that the generated mice label LT-HSCs in a highly specific manner.

2019-09-23 | GSE115908 | GEO

Decoding the interplay between m6A modification and stress granule stability by live-cell imaging

Project description:Decoding the interplay between m6A modification and stress granule stability by live-cell imaging

| PRJNA1141493 | ENA

DARTseq identifies m6A targets in human CD34+ HSPCs

Project description:The goal of this study is to identify m6A targets in human CD34+ HSPCs with or without STM2457 treatment using DARTseq. Purified human CD34+ HSPC cells were transduced with APOBEC-YTH or empty vector control (MIG). 24hr post infection, CD34+ cells were treated with STM2457 at a concentration of 20µM for 2 days. GFP+ cells were sorted the next day. 3 replicates were performed.

2023-12-07 | GSE231861 | GEO

Interaction partners of arginyl-tRNA protein transferase in the moss Physcomitrella patens

Project description:Protein arginylation is a post-translational modification at the N-terminus of proteins and is crucial for viability and physiology in higher eukaryotes. The lack of arginylation causes severe developmental defects in plants and embryo lethality in Drosophila and in mice. Although several studies investigated impact and function of the responsible enzyme, the arginyl-tRNA protein transferase (ATE) in plants, identification of arginylated proteins by mass spectrometry was not hitherto achieved. In the present study, we report the identification of targets and interaction partners of ATE in the model plant Physcomitrella patens by mass spectrometry employing two different immuno-affinity strategies and a recently established transgenic ATE:GUS reporter line (Schuessele et al., 2015 New Phytol., DOI: 10.1111/nph.13656). Here we use a commercially available antibody against the fused reporter protein (GUS) to pull down ATE and its interacting proteins and validate the in vivo interaction with a class I small heatshock protein via Förster resonance energy transfer (FRET).

2016-04-19 | PXD003228 | Pride

Small-molecule Inhibition of METTL3 Suppresses Tumor Growth and Promotes Neuroblastoma Differentiation [meRIP-Seq]

Project description:The N6-methyladenosine (m6A) RNA modification is an important regulator of gene expression. m6A is deposited by a methyltransferase complex that includes methyltransferase-like 3 (METTL3) and methyltransferase-like 14 (METTL14). High levels of METTL3 and METTL14 drive the growth of many types of adult cancer, and METTL3/METTL14 inhibitors are emerging as new anticancer agents. However, little is known about the m6A epitranscriptome or the role of the METTL3/METTL14 complex in neuroblastoma, a common pediatric cancer. Here, we show that METTL3 knockdown or pharmacologic inhibition with the small molecule STM2457 leads to reduced neuroblastoma cell proliferation and increased differentiation. These changes in neuroblastoma phenotype were associated with decreased m6A deposition on transcripts involved in nervous system development and neuronal differentiation and increased stability and expression of target mRNAs. In preclinical studies, STM2457 treatment suppressed the growth of neuroblastoma tumors in vivo. Together, these results support the potential of METTL3/METTL14 complex inhibition as therapeutic strategy against neuroblastoma.

2024-04-10 | GSE240582 | GEO

Small-molecule Inhibition of METTL3 Suppresses Tumor Growth and Promotes Neuroblastoma Differentiation [RNA-Seq Decay]

2024-04-10 | GSE240581 | GEO

Small-molecule Inhibition of METTL3 Suppresses Tumor Growth and Promotes Neuroblastoma Differentiation [RNA-Seq STM]

2024-04-10 | GSE262731 | GEO

Small-molecule Inhibition of METTL3 Suppresses Tumor Growth and Promotes Neuroblastoma Differentiation [RNA-seq siMETTL3]

2024-04-10 | GSE263118 | GEO