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ENO1-IT1(ENSG00000236269.1) coordinates the acetylation of histone genome-wide in Colorectal Cancer

ABSTRACT: LncRNA ENO1-IT1 has been found to be mainly located in the nucleus of colorectal mucosa epithelial cells, which indicates that this lncRNA may be responsible for regulating the expression of target gene. To address whether ENO1-IT1 modulates epigenetic changes genome-wide, we performed chromatin immunoprecipitation coupled with high-throughput sequencing (ChIP-seq) in HCT116 cells

ORGANISM(S): Homo sapiens

PROVIDER: GSE139403 | GEO | 2022/10/25

REPOSITORIES: GEO

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mRNA expression of colorectal cancer cell line HCT116 transfected with lncRNA-SPRY4-IT1 overexpression or control vector

Project description:To determine the mRNA expression profile of colorectal cancer cell line HCT116 transfected with lncRNA-SPRY4-IT1 overexpression vector, we performedd gene expression microArray analysis to examine the expression of mRNAs.

2019-11-19 | GSE140616 | GEO

The long noncoding RNA SPRY4-IT1 increases the proliferation of human breast cancer cells by upregulating ZNF703 expression

Project description:Background: Long noncoding RNAs (lncRNAs) have emerged recently as a new class of genes regulating cellular processes, such as cell growth and apoptosis. The SPRY4 intronic transcript 1 (SPRY4-IT1) is a 708-bp lncRNA on chromosome 5 with a potential functional role in tumorigenesis. The clinical significance of SPRY4-IT1 and the effect of SPRY4-IT1 on cancer progression are unclear. Methods: Quantitative reverse transcriptase PCR (qRT-PCR) was performed to investigate the expression of SPRY4-IT1 in 48 breast cancer tissues and four breast cancer cell lines. Gain and loss of function approaches were used to investigate the biological role of SPRY4-IT1 in vitro. Microarray bioinformatics analysis was performed to identify the putative targets of SPRY4-IT1, which were further verified by rescue experiments, as well as by western blotting and qRT-PCR. Results: SPRY4-IT1 expression was significantly upregulated in 48 breast cancer tumor tissues compared to normal tissues. Additionally, increased SPRY4-IT1 expression was associated with larger tumor size and an advanced pathological stage in breast cancer patients. Knockdown of SPRY4-IT1 significantly suppressed proliferation and caused apoptosis of breast cancer cells in vitro. Furthermore, we discovered ZNF703 was a direct target of SPRY4-IT1 and was downregulated by SPRY4-IT1 knockdown. Moreover, we demonstrated for the first time that ZNF703 is a genetic driver in ER (-) breast carcinoma cells. Conclusions: SPRY4-IT1 is a novel prognostic biomarker and a potential therapeutic candidate for breast cancer. Five samples are analyzed, including three control groups and two small interfering RNA groups

2014-10-22 | E-GEOD-62507 | biostudies-arrayexpress

The long noncoding RNA SPRY4-IT1 increases the proliferation of human breast cancer cells by upregulating ZNF703 expression

2014-10-22 | GSE62507 | GEO

LncRNA SPRY4-IT1 Facilitates Cell Proliferation and Angiogenesis of Glioma by the miR-101-3p/EZH2/VEGFA Signaling Axis

Project description:SPRY4-IT1 (SPRY4 intronic transcript 1) is a long non-coding RNA (lncRNA) that was identified as a novel oncogene in various human cancers, including glioma. However, its function and the further mechanism in glioma remain largely unclear. Here, we aimed to investigate the role of SPRY4-IT1 in the development of glioma and its underlying molecular mechanism. We identify that SPRY4-IT1 is overexpressed in patients with glioma from the TCGA database and own cohort, and correlated with poor prognosis of patients. Then, loss of function and gain of function cell model were established by transfected with siRNA and pcDNA3.1 plasmid. SPRY4-IT1 promotes glioma cells proliferation by Cell Count Kit 8 assays and EdU assay in vitro, and xenograft tumor assays in vivo. RNA sequence was performed to compare the transcriptomes of U87 siSPRY4-IT1-NC and U87 siSPRY4-IT1 cells, and Gene Ontology (GO) enrichment analysis indicated angiogenesis is significantly enriched. HUVEC tube forming assays and Chick Embryo Chorioallantoic Membrane (CAM) assays confirmed that SPRY4-IT1 can induce angiogenesis of glioma in vitro and in vivo. Mechanistically, we identify that SPRY4-IT1 upregulates EZH2 expression by sponge miR-101-3p to induce VEGFA expression in glioma cells. Moreover, SPRY4-IT1 activates VEGFR2/AKT/ERK1/2 pathway in HUVECs by glioma cell-mediated. Rescue experiments were performed by co-transfected with SPRY4-IT1 and EZH2 overexpression plasmid in glioma cells, and confirmed that SPRY4-IT1 promotes cell proliferation and angiogenesis of glioma by miR-101-3p/EZH2/VEGFA signaling axis. Taken together, our studies clarify that SPRY4-IT1 upregulates EZH2 to induce VEGFA by sponge miR-101-3p to achieve cell proliferation and angiogenesis in glioma. Thus, these findings have provided insights into the prognosis prediction and therapeutic target of glioma.

2022-06-30 | GSE189462 | GEO

mRNA expression of colorectal cancer cell line HCT116 transfected with lncRNA-SPRY4-IT1 overexpression or control vector

Project description:mRNA expression of colorectal cancer cell line HCT116 transfected with lncRNA-SPRY4-IT1 overexpression or control vector

| PRJNA590254 | ENA

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2022-08-13 | GSE135783 | GEO

Effect of knockdown RUNX1-IT1 on gene expression in ES2 cells

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2024-01-01 | GSE245778 | GEO

Staphylococcus aureus strain:IT1-S

Project description:Staphylococcus aureus strain:IT1-S Genome sequencing

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A lncRNA from the FTO locus acts as an inhibitor of mRNA m6A methylation and p53 tumor suppression

Project description:The FTO gene locus has been linked to cancer and obesity through encoded N6-methyladenosine (m6A) demethylase FTO or inherited genomic variants (e.g. intronic single-nucleotide polymorphisms). Here we demonstrate that FTO-IT1, a long noncoding RNA (lncRNA) transcribed from a FTO gene intron, is upregulated during prostate cancer (PCa) progression and positively correlated with poor survival of patients with tumors only expressing wild-type p53. We show that RBM15, a mRNA/substrate binding subunit of the m6A methyltransferase complex binds and increases mRNA m6A methylation and stability of p53 transcriptional target genes; however, FTO-IT1 overexpression abolishes these effects by blocking RBM15 binding of p53 target gene mRNAs. Therapeutic targeting of FTO-IT1 restores mRNA m6A level and p53 signaling and inhibits PCa tumor growth in mice. Our study identifies FTO-IT1 lncRNA as a bono fide inhibitor of m6A methylation and p53 tumor suppression and nominates FTO-IT1 as a potential biomarker and therapeutic target of cancer.

2023-07-08 | GSE212043 | GEO

lncRNA and mRNA expression profile in colorectal adenoma and cancer

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2020-09-28 | GSE104364 | GEO

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