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Transcriptomics provides novel insights into the regulatory mechanism of lncRNA HIF1A-AS1 on VSMCs

ABSTRACT: Transcriptomics provides novel insights into the regulatory mechanism of lncRNA HIF1A-AS1 on VSMCs

PROVIDER: PRJNA834151 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19040521_1.fastq.gz	Fastqsanger.gz
	SRR19040521_2.fastq.gz	Fastqsanger.gz
	SRR19040522_1.fastq.gz	Fastqsanger.gz
	SRR19040522_2.fastq.gz	Fastqsanger.gz
	SRR19040523_1.fastq.gz	Fastqsanger.gz

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Transcriptomics provides novel insights into the regulatory mechanism of lncRNA HIF1A-AS1 on VSMCs

Project description:In current study, using a lentivirus-based expression system, we observed that overexpressing HIF1A-AS1 successfully promoted apoptosis, significantly altered cell cycle distribution and greatly facilitated migration in VSMCs, further highlighting the robust promoting effects of HIF1A-AS1 to TAA. Moreover, transcriptomics was implemented to uncover its underlying mechanism. A total of 175 differentially expressed genes (DEGs) were identified, with some of them enriched in apoptosis, migration and cell cycle related pathways. Intriguingly, some DEGs were annotated in vascular development or coagulation function pathways. In view of this, we suggested HIF1A-AS1 mediated the progression of TAA by not only regulating the function of VSMC cells, but also altering vascular development or coagulation function. Lastly, RT-qPCR confirmed the veracity and reliability of RNA-sequencing results.

2023-10-12 | GSE202078 | GEO

LncRNA HIF1A-AS1 regulates the apoptosis and proliferation of vascular endothelial cells through globally regulating miRNAs expression [miRNA-Seq]

Project description:In the current study, on the basis of establishment of PA-induced damage model of HUVECs, the silencing and overexpression (OE) of HIF1A-AS1 were implemented in the HUVECs, and the effects on cell viability, apoptosis, migration and invasion were explored, respectively. Functionally, the results indicated silencing of HIF1A-AS1 promoted the proliferation migration and invasion, and reduced the apoptosis of HUVECs. In contrast, OE of HIF1A-AS1 reduced proliferation transwell and invasion, promoted the apoptosis, suggesting that HIF1A-AS1 play vital roles in regulating HUVECs. Moreover, miRNA sequencing (miRNA-seq) and RNA sequencing (RNA-seq) were carried out, and the results indicated that HIF1A-AS1 globally mediate expression of miRNA and mRNA. The multiple target genes of DEmiRNA were associated with cell proliferation and apoptosis, and overlapped with the DEGs from RNA-seq, suggestion that HIF1A-AS1 might regulate the proliferation and apoptosis of HUVECs by regulating miRNA expression.

2024-06-17 | GSE178397 | GEO

LncRNA HIF1A-AS1 regulates the apoptosis and proliferation of vascular endothelial cells through globally regulating miRNAs expression [RNA-Seq]

2024-06-17 | GSE178401 | GEO

Identification of interacting proteins of lncRNA HIF1α-AS1

Project description:LncRNA Hypoxia-inducible factor 1α-antisense 1 (HIF1α-AS1) is located on the antisense strand of the important Hypoxia-inducible factor 1α (HIF1α) gene, but being transcribed in antisense direction along the HIF1α promoter. Here we used the 3’end biotinylated HIF1a-AS1 RNA and a control RNA for RNA Pulldown and searched for interacting proteins in nuclear extracts of human umbilical vein endothelial cells (HUVEC).

2022-09-23 | PXD023512 | Pride

Development of gene expression signatures for WT (Hif1afl/fl) mice and VSMC-specific HIF1α disruption (Hif1a△SMC) mice VSMCs treated with 150μM CoCl2 for 24hours

Project description:HIF1α is a key regulator of hypoxia, however, the changes of its target genes in VSMCs under hypoxia were unknown. CoCl2 is a chemical hypoxia agent which leads to the stabilization of HIF1-α and the expression of hypoxia responsive genes, Therefore Hif1afl/fl and Hif1a△SMC VSMCs were treated with CoCl2 and performed microarray analysis. We used microarray to detail the gene expression of WT (Hif1afl/fl) mice and VSMC-specific HIF1α disruption (Hif1a△SMC) mice VSMCs treated with 150μM CoCl2 for 24hours.

2020-06-22 | GSE119226 | GEO

HIF1α-AS1 is a DNA:DNA:RNA triplex-forming lncRNA interacting with the HUSH complex

Project description:To investigate the effect of HIF1a-AS1 on chromatin accessibility, a number of ATAC-sequencing experiments were performed after perturbation of the lncRNA.

2022-09-23 | GSE203252 | GEO

Circadian lncRNA ADIRF-AS1 binds PBAF and regulates renal clear cell tumorigenesis

Project description:We identified ADIRF-AS1 as a BMAL1-CLOCK regulated circadian lncRNA. Loss of ADIRF-AS1 in U2OS cells altered rhythmicity of clock-controlled genes and expression of genes associated with cell adhesion and the extracellular matrix (ECM) but did not affect neighboring genes in cis. Affinity based enrichment of U2OS ADIRF-AS1-interacting proteins identified all components of the tumor suppressive PBAF (PBRM1/BRG1) complex. Because PBRM1 is a tumor suppressor mutated in 40% of clear cell renal carcinoma (ccRCC) cases, we studied ccRCC 786O cells and also found PBRM1 bound to ADIRF-AS1. Reducing ADIRF-AS1 expression in 786O and A498 ccRCC cells decreased expression of PBAF-suppressed genes, consistent with ADIRF-AS1 acting to antagonize the function of PBAF. Loss of PBRM1, however, rescued PBAF responsive cell cycle genes in ADIRF-AS1 KO 786O ccRCC cells. Importantly, ADIRF-AS1 expression correlates with survival in human ccRCC, particularly in PBRM1 wild-type, but not mutant PBRM1 tumors. In this regard, loss of ADIRF-AS1 did not affect in vitro 786O cell growth, but strikingly eliminated in vivo tumorigenesis, which was partially rescued by concurrent loss of PBRM1. This rescue, however, requires Matrigel, suggesting a PBRM1-independent function of ADIRF-AS1 in regulating the ECM. Collectively, our findings suggest that ADIRF-AS1 functions partly to antagonize the tumor suppressive effect of the PBAF complex and behaves as an unforeseen BMAL1-regulated, oncogenic lncRNA.

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Identification of protein interaction partners of the lncRNA ADPGK-AS1

Project description:M2-like macrophage upregulated lncRNA ADPGK-AS1 regulates macrophage phenotype and modulates the influence of macrophages on lung tumor apoptosis and migration. Here we identified proteins that interact with ADPGK-AS1 that might give insight into how this regulation this is regulated on molecular level. We were able to identify interaction with mitochondrial ribosomal proteins, leading to regulation of mitochondrial oxidative phosphorylation.

2023-08-13 | PXD030605 | Pride

HHIP-AS1 lncRNA promotes tumorigenicity in human SHH-driven brain tumors

Project description:Long non-coding RNAs (lncRNAs) comprise a diverse class of gene expression regulators with emerging roles in many biological processes including cancer. Here we show that the expression of the lncRNA Hedgehog Interacting Protein Antisense 1 (HHIP-AS1) is a hallmark feature of human SHH-driven tumors. Importantly, loss of HHIP-AS1 leads to reduced tumor growth in SHH-driven tumors in vitro and in vivo. Our results demonstrate the power of cross-entity transcriptome-wide comparisons to identify novel epigenetic–regulatory lncRNA circuitries underlying human cancers.

2022-06-01 | PXD016550 | Pride

LncRNA HIF1A-AS1 regulates the apoptosis and proliferation of vascular endothelial cells through globally regulating miRNAs expression

Project description:LncRNA HIF1A-AS1 regulates the apoptosis and proliferation of vascular endothelial cells through globally regulating miRNAs expression

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