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Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [CRLM1_CHIRP]

ABSTRACT: Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [CRLM1_CHIRP]

PROVIDER: PRJNA706355 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13844471_1.fastq.gz	Fastqsanger.gz
	SRR13844471_2.fastq.gz	Fastqsanger.gz
	SRR13844472_1.fastq.gz	Fastqsanger.gz
	SRR13844472_2.fastq.gz	Fastqsanger.gz
	SRR13844473_1.fastq.gz	Fastqsanger.gz

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Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [CRLM1_OE]

Project description:The survival rate of colorectal liver metastases remains low. Long noncoding lncRNAs is emerging as a novel class of master regulators of cell invasion and metastasis. In this study, analysis of the lncRNA expression dynamics in the colorectal liver metastases, primary colorectal tumor and normal tissues led to the identification of the metastasis-specific expression of a set of lncRNAs including CRLM1. CRLM1 inhibited apoptosis and promoted metastasis and invasion of colorectal cancer cells, and also promoted tumor growth in nude mice. CRLM1 weakly associated with chromatin regions of genes involved in cell adhesion and DNA damage, correlated with CRLM1-regulated gene expression bidirectionally. CRLM1 physically interacts with and promotes the nuclear localization of the metastasis protein hnRNPK. CRLM1 effectively promotes hnRNPK promoter occupancy, and co-regulate gene expression. These findings suggest a potential biomarker and druggable target for treatment of colorectal liver metastases.

2022-08-03 | GSE168145 | GEO

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [CRLM1_CHIRP]

2022-08-03 | GSE168144 | GEO

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [HNRNPK_OE]

2022-08-03 | GSE168147 | GEO

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [HNRNPK_CHIP]

2022-08-03 | GSE168146 | GEO

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK

Project description:Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK

| PRJNA706350 | ENA

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [CRLM1_OE]

Project description:Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [CRLM1_OE]

| PRJNA706356 | ENA

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [HNRNPK_CHIP]

Project description:Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [HNRNPK_CHIP]

| PRJNA706358 | ENA

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [HNRNPK_OE]

Project description:Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK [HNRNPK_OE]

| PRJNA706360 | ENA

LncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK in colorectal cancer.

Project description:BackgroundColorectal liver metastases (CRLM) continue to have a low survival rate. The number of CRLM regulators and clinical indicators remains limited. Long non-coding RNAs (lncRNAs) are a new master regulator of cell invasion and metastasis. However, the function and regulation mechanism of lncRNAs in colorectal cancer (CRC) metastasis are yet unknown.MethodsTo screen and identify CRLM-related lncRNAs, public transcriptome data were used. Gain and loss of function experiments were carried out to investigate the biological activities of lncRNA CRLM1 in vitro and in vivo. RNA sequencing (RNA-seq), chromatin isolation by RNA purification (ChIRP), immunofluorescence (IF), quantitative real-time PCR (qRT-PCR), western blotting, and rescue experiments were performed to explore the molecular mechanism of CRLM1. Moreover, identified the proteins, DNAs, and RNAs that interact with CRLM1.ResultsThe investigation of lncRNA expression dynamics in CRLM, primary CRC, and normal tissues in this work resulted in identifying a series of lncRNAs associated with metastasis, including CRLM1. CRLM1 inhibited apoptosis of CRC cells and promoted liver metastasis in Balb/C nude mice. CRLM1 was weakly associated with the chromatin regions of genes involved in cell adhesion and DNA damage, and this association was bidirectionally correlated with CRLM1-regulated pro-metastatic gene expression. CRLM1 physically interacts with the hnRNPK protein and promotes its nuclear localization. CRLM1 effectively enhances hnRNPK promoter occupancy and co-regulates the expression of a panel of metastatic genes.ConclusionsThe finding of the clinically significant lncRNA CRLM1 in promoting metastasis and regulating gene expression suggests a potential biomarker and target for CRLM therapy.

| S-EPMC9338583 | biostudies-literature

Colorectal liver metastases-specific lncRNA CRLM1 inhibits apoptosis and promotes metastasis through transcriptional regulation cooperated with hnRNPK

Project description:This SuperSeries is composed of the SubSeries listed below.

2022-08-03 | GSE167224 | GEO