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SK-NEP-1 treated with SKI-5C

ABSTRACT: Wilm’s tumor(WT) is the most common malignant renal tumor in children, representing approximately 6-14% of all childhood cancers and about 95% of all pediatric renal malignancies. SKI-5C is a newly developed Sphk1 inhibitor. This small molecular inhibitor was firstly reported at 2009 by Wang et al. This study investigated the antitumor activity of SKI-5C in SK-NEP-1 cells. SKI-5C inhibited cell proliferation of SK-NEP-1 cells in a dose-dependent manner. Annexin V, Tunel and Hochest 33342 staining analysis showed that SKI-5C-treated cells showed more apoptotic features compared with the control.

ORGANISM(S): Homo sapiens

PROVIDER: GSE72980 | GEO | 2016/12/31

SECONDARY ACCESSION(S): PRJNA295517

REPOSITORIES: GEO

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Homo sapiens

Project description:SK-NEP-1 treated with SKI-5C

| PRJNA295517 | ENA

SK-NEP-1 treated with LBH589

Project description:Wilms tumor (WT) is an embryonic kidney cancer, for which histone acetylation might be a therapeutic target. LBH589, a novel targeted agent, suppresses histone deacetylases in many tumors. This study investigated the antitumor activity of LBH589 in SK-NEP-1 cells. LBH589 inhibited cell proliferation of SK-NEP-1 cells in a dose-dependent manner. Annexin V, Tunel and Hochest 33342 staining analysis showed that LBH589-treated cells showed more apoptotic features compared with the control. LBH589 treatment inhibited the growth of SK-NEP-1 xenograft tumors in nude mice. Arraystar Human LncRNA Array analysis of genes and lncRNas regulated by LBH589 identified 6653 mRNAs and 8135 lncRNAs in LBH589-treated SK-NEP-1 cells. The most enriched gene ontology terms were those involved in nucleosome assembly. KEGG pathway analysis identified cell cycle proteins, including CCNA2, CCNB2, CCND1, CCND2, CDK4, CDKN1B and HDAC2, etc. Ingenuity Pathway Analysis identified important upstream molecules: HIST2H3C, HIST1H4A, HIST1A, HIST1C, HIST1D, Histone H1, Histone H3, RPRM, HSP70 and MYC.

2015-12-30 | GSE64975 | GEO

Cistrome analysis of SKI and RUNX1 in HL60

Project description:SKI is a transcriptional co-regulator and overexpressed in various human tumors, for example in acute myeloid leukemia (AML). SKI contributes to the origin and maintenance of the leukemic phenotype. Here we use ChIP-seq and RNA-seq to identify the epigenetic alterations induced by SKI overexpression in AML cells. We show that approximately two thirds of differentially expressed genes are up-regulated upon SKI deletion, of which nearly 50% harbour SKI binding sites in their proximity, primarily in enhancer regions. Gene ontology analysis reveals that many of the differentially expressed genes are annotated to hematopoietic cell differentiation and inflammatory response, corroborating our finding that SKI deletion causes a release of the myeloid differentiation block in HL60 cells. We find that SKI peaks are enriched for RUNX1 consensus motifs, particularly in up-regulated SKI targets. RUNX1 ChIP-seq demonstrates that nearly 70% of RUNX1 binding sites overlap with SKI peaks, mainly at enhancer regions. SKI and RUNX1 co-occupy the same genomic sites and cooperate in gene silencing. Our work demonstrates for the first time on a genome-wide scale the predominant co-repressive function of SKI in AML cells and uncovers the transcription factor RUNX1 as an important mediator of SKI-dependent transcriptional repression.

2018-02-07 | GSE107553 | GEO

Transcriptome analysis of SKI knock-out in HL60 cells

Project description:Whole transcriptome for SKI knock-out and control HL60 cells was sequenced. SKI control and knockout samples were compared to find differentially expressed genes. Differentially expressed genes were further analysed to find the significance of SKI in HL60 cells.

2018-02-07 | GSE107555 | GEO

Reversing SKI–SMAD4-mediated suppression is essential for TH17 cell differentiation

Project description:Disruption of Ski/Smad4 license Th17 differentiation. TGF-b-Ski-Smad4-RORgt-Th17 axis

2017-10-25 | GSE101527 | GEO

Differentiation of Mammary Tumors by SKI-606 (bostutinib) (illumina)

Project description:While c-Src is infrequently mutated in human cancers, it mediates oncogenic signals of many activated growth factor receptors and thus remains a key potential target of cancer therapy. However, the widespread function of Src in many cell types and processes requires evaluation of Src-targeted therapeutics within a normal developmental and immune competent environment. In an effort to direct clinical use of Src inhibitors, we tested the effectiveness of one of the four Src inhibitors in clinical testing, SKI-606 (bosutinib), in the MMTV-PyVmT transgenic mouse model of breast cancer. Tumor formation in this model is dependent on the presence of Src, but the necessity of Src kinase activity for tumor formation has not been determined. Furthermore, Src inhibitors have not been examined in an autochthonous tumor model. Here we show that oral administration of the Src inhibitor SKI-606 inhibited the phosphorylation of Src in mammary tumors, and caused a rapid decrease in the Ezh2 Polycomb group histone H3K27 methyltransferase and an increase in epithelial organization. SKI-606 prevented the appearance of palpable tumors in more than half of the animals treated from puberty and stopped tumor growth in older animals with preexisting tumors. These antitumor effects were accompanied by decreased cellular proliferation, altered tumor blood vessel organization and dramatically increased differentiation to lactational and epidermal cell fates. SKI-606 controls the development of mammary tumors in this model by inducing differentiation. Differentiation of Mammary Tumors by SKI-606 (bostutinib)

2010-09-15 | E-GEOD-20921 | biostudies-arrayexpress

Function of 5C medium in somatic cell reprogramming

Project description:We induced reprogramming by mES and 5C medium, and collected mRNA profiles of the GFP+ and GFP- reprogramming cells sorted by FACS. We found that 5C iPSCs showed differences with mES iPSCs, with different influences on GFP+ and GFP- cells on MET. And we picked the 5C iPSCs single colony, cultured with naive and primed medium. We showed that 5C iPSCs could be converted to naive and primed state respectively.

2019-04-14 | GSE103765 | GEO

Differentiation of Mammary Tumors by SKI-606 (bostutinib) (gene expression)

2011-01-01 | E-GEOD-22150 | biostudies-arrayexpress

Reversing SKI–SMAD4-mediated suppression is essential for TH17 cell differentiation [ChIP-seq]

Project description:Disruption of Ski/Smad4 license Th17 differentiation. TGF-b-Ski-Smad4-RORgt-Th17 axis

2017-10-25 | GSE101593 | GEO

Classifying leukemia types with chromatin conformation data (5C)

Project description:Background: Although genetic or epigenetic alterations have shown to affect the three-dimensional organization of genomes, the utility of chromatin conformation in the classification of human disease has never been addressed. Results: Here, we explore whether chromatin conformation can be used to classify human leukemia. We map the conformation of the HOXA gene cluster in a panel of cell lines with 5C chromosome conformation capture technology, and use the data to train and test a support vector machine classifier named 3D-SP. We show that 3D-SP is able to accurately distinguish leukemias expressing MLL-fusion proteins from those expressing only wild-type MLL, and that it can also classify leukemia subtypes according to MLL fusion partner, based solely on 5C data. Conclusions: Our study provides the first proof-of-principle demonstration that chromatin conformation contains the information value necessary for classification of leukemia subtypes. Analysis of 38 samples using 5C technology. All data normalized using a 'master' BAC consisting of 5C data from 6 samples.

2014-02-27 | E-GEOD-55406 | biostudies-arrayexpress

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