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RBMX suppresses tumorigenicity and progression of bladder cancer via interaction with hnRNP A1 protein to regulate PKM alternative splicing

ABSTRACT: RBMX suppresses tumorigenicity and progression of bladder cancer via interaction with hnRNP A1 protein to regulate PKM alternative splicing

PROVIDER: PRJNA632747 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11788862_1.fastq.gz	Fastqsanger.gz
	SRR11788862_2.fastq.gz	Fastqsanger.gz
	SRR11788863_1.fastq.gz	Fastqsanger.gz
	SRR11788863_2.fastq.gz	Fastqsanger.gz
	SRR11788864_1.fastq.gz	Fastqsanger.gz

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RBMX suppresses tumorigenicity and progression of bladder cancer via interaction with hnRNP A1 protein to regulate PKM alternative splicing

Project description:Bladder cancer (BCa) is one of the most common malignant tumors of urinary system and has high incidence rate and mortality but there is a lack of effective treatment. Therefore, an in-depth study of the molecular mechanisms involved in BCa is of great significance for improving the survival of patients with advanced BCa. We found that the expression of RBMX was significantly declined in BCa, especially in muscle-invasive BCa. BCa patients with low levels of RBMX had poor prognoses. By in vitro and in vivo experiments, RBMX was shown to inhibit BCa cells growth and metastasis. Co-IP coupled with MS and GO analysis identified hnRNP A1 as a RBMX-binding protein. Mechanistically, RBMX competitively bond to the RGG box of hnRNP A1 and antagonized the hnRNP A1-mediated regulation of PKM splicing by blocking the binding of the RGG motif of hnRNP A1 to the sequences flanking PKM exon 9, resulting in downregulation of PKM2 and upregulation of PKM1. By decreasing the PKM2/PKM1 ratio, RBMX suppressed BCa cells aerobic glycolysis, which further inhibited tumorigenicity and progression of BCa.

2020-11-23 | GSE150548 | GEO

hnRNP A1 iCLIP

Project description:hnRNP A1 iCLIP

| PRJEB9546 | ENA

hnRNP A1 iCLIP

Project description:This experiment identifies hnRNP A1 binding sites transcriptome-wide in Hela cells. HeLa cells with inducible expression of T7-tagged hnRNP A1 were grown to approximately 90% confluence and then subject to iCLIP analysis (following the protocol from Huppertz et al. 2014 (iCLIP: protein-RNA interactions at nucleotide resolution)). The iCLIP library was sequenced using Illumina's HighSeq 1500

2016-06-23 | E-MTAB-3612 | biostudies-arrayexpress

RNAseq of human Multiple Sclerosis cortex with hnRNP A1 dysfunction

Project description:We sought to identify alterations in RNA expression and splicing in human grey matter from the brains of people with Multiple Sclerosis (MS) where we observe mislocalization of the RNA binding protein hnRNP A1. Thus, RNA was extracted from fresh-frozen post-mortem brain samples of three people with MS and compared to RNA extracted from fresh-frozen post-mortem brain samples of three healthy controls by RNAseq. Regions of interest in human grey matter were defined by immunostaining for hnRNP A1 to confirm grey matter regions with hnRNP A1 mislocalization in MS tissue, and grey matter regions with normal hnRNP A1 localization in control tissue, and the same region from an adjacent tissue section was dissected with a razor blade and used for RNA extraction and sequencing.

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Effects of hnRNP A1 on gene expression in oral squamous cell carcinoma

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CLIPseq of hnRNP A1 from the spinal cords of mice with experimental autoimmune encephalomyelitis

Project description:Experimental autoimmune encephalomyelitis (EAE) is a mouse model for multiple sclerosis (MS) a chronic autoimmune disease of the central nervous system. We have observed dysfunction of the RNA binding protein hnRNP A1 in neurons from the brains of patients with MS, and the spinal cords of mice with EAE. Here, we sought to characterize the consequences of EAE-induced dysfunction of hnRNP A1 on the RNAs it binds by using CLIPseq to establish both the normal central nervous system RNA binding profile of hnRNP A1 in the spinal cords of naive mice, and any alterations to the binding profile of hnRNP A1 in the spinal cords of mice with EAE.

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Transcriptome profiling of hnRNP A2/B1 and A1 depleted cells

Project description:We used NEBNext UltraÂ DirectionalÂ RNA Library Prep Kits to prepare RNA-seq libraries of total RNA from hnRNP A2/B1 and A1 depleted A549 cells. Pro-seq libraries were prepared from A549 cells using Illumina adapters hnRNP A2/B1 and A1 depleted A549 cells were generated by lentiviral infections of shRNA constructs. RNAs were isolated using Trizol.

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Effects of hnRNP A1 on gene expression in oral squamous cell carcinoma

Project description:To find the discover target genes regulated by hnRNP A1 in oral squamous cell carcinoma, NimbleGen 12x135K microarrays were used to find the gene expression changes between hnRNP A1 or non-specific (NS) siRNA treated oral cancer cells. Cal27 cells were treated with hnRNP A1 or non-specific (NS) siRNA twice in a 48-hour interval. After 96 hours, total RNAs were collected for microarray assay. Total RNAs from hnRNP A1 knockdown (3 samples) or NS siRNA treated cells (3 samples) were used for chip experiment (6 chips). Each chip measures the expression levels of human 45,033 genes. NimbleGen One-Color DNA Labeling Kit was used for sample labeling. Hybridization was performed in NimbleGen Hybridization System. After washing, slides were scanned with Axon GenePix 4000B scanner. Data was extracted and normalized using NimbleScan v2.5 Software.

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Project description:Transcription profiling of human HeLa cells (cervical cancer cell line) transfected with a plasmid expressing shRNAs cloned into the pSuper expression vector compared to emprty vector negative controls for transfection. Four different RNA interference treatments targetted: A1 hnRNP (HNRNPA1, Heterogeneous nuclear ribonucleoprotein A1); FUS (fusion gene, involved in t(12;16) in malignant liposarcoma); H hnRNP (HNRNPH1); and p68 helicase (DDX5, DEAD (Asp-Glu-Ala-Asp) box polypeptide 5). Keywords: genetic modification

2008-08-20 | GSE12058 | GEO

Rip-Chip profiling of HnRNP A1 nuclear complexes in HuR WT and HuR KO cells

Project description:Post-transcriptional regulatory networks are dependent on the interplay of many RNA-binding proteins having a major role in mRNA processing events in mammals. We have been interested in the concerted action of the two RNA-binding proteins hnRNP A1 and HuR, both stable components of immunoselected hnRNP complexes and having a major nuclear localization. Specifically, we present here the application of the RNA-immunoprecipitation (RIP)-Chip technology to identify a population of nuclear transcripts associated with hnRNP A1-RNPs as isolated from the nuclear extract of either HuR WT or HuR-depleted (KO) mouse embryonic fibroblast (MEF) cells. The outcome of this analysis was a list of target genes regulated via HuR for their association (either increased or reduced) with the nuclear hnRNP A1-RNP complexes. Real time PCR analysis was applied to validate a selected number of nuclear mRNA transcripts, as well as to identify pre-spliced transcripts (in addition to their mature mRNA counterpart) within the isolated nuclear hnRNP A1-RNPs. The differentially enriched mRNAs were found to belong to GO categories relevant to biological processes anticipated for hnRNP A1 and HuR (such as transport, transcription, translation, apoptosis and cell cycle) indicative of their concerted function in mRNA metabolism.

2013-11-01 | GSE49225 | GEO

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