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Epigenetic Activation and alteration of chromatin structure regulated by NSD2 in metastatic castration-resistant prostate cancer (RNA-seq)

ABSTRACT: To elucidate the regulation of NSD2 in metastatic castration-resistant prostate cancer(CRPC), we performed ChIP-seq of H3K36me2, H3K27me3, H3K4me1, H3K4me3,H3K27ac and NSD2 against castration-sensitive prostate cancer cell line LNCaP and metastatic castration-resistant prostate cancer cell lines, PC3 and DU145, respectively. In metastatic CRPC, we found specific regions of activation with epigenetic changes.

ORGANISM(S): Homo sapiens

PROVIDER: GSE248628 | GEO | 2024/09/04

REPOSITORIES: GEO

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Epigenetic Activation and alteration of chromatin structure regulated by NSD2 in metastatic castration-resistant prostate cancer (ChIP-seq)

Project description:To elucidate the regulation of NSD2 in metastatic castration-resistant prostate cancer(CRPC), we performed ChIP-seq of H3K36me2, H3K27me3, H3K4me1, H3K4me3,H3K27ac and NSD2 against castration-sensitive prostate cancer cell line LNCaP and metastatic castration-resistant prostate cancer cell lines, PC3 and DU145, respectively. In metastatic CRPC, we found specific regions of activation with epigenetic changes.

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Epigenetic Activation and alteration of chromatin structure regulated by NSD2 in metastatic castration-resistant prostate cancer (Hi-C)

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Effects of OCT4/NRF1 knockdown in castration-resistant prostate cancer cells

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Project description:Prostate cancer is the most common cancer in men and androgen receptor (AR) downstream signalings promote prostate cancer progression. Although androgen deprivation therapy is effective for treating prostate cancer, most tumors relapsed as castration-resistant prostate cancer (CRPC). We performed ChIP-seq analysis to investigate the role of important transcription factors and histone modifications using AR positive prostate cancer cells, LNCaP, CRPC model cells, 22Rv1 and DU145 cells.

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CRISPR/Cas9 regulates EphA2-CDH1 axis to inhibit the migration of castration-resistant prostate cancer cells

Project description:We ued CRISPR/Cas9 to knock out EphA2 gene in PC3 cells, and overexpress EphA2 gene in Du145 cells with overexpressed plasmids to explore the underlying mechanisms of EphA2 function in castration-resistant prostate cancer(CRPC) and clinical relevance, providing more evidence for EphA2 as a potential therapeutic target for CRPC.

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Effects of PSF inhibitors in castration-resistant prostate cancer cells

Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Although initially hormone-deprovation therapy is effective to inhibit cancer progression, most of cancers relapse as castration-resistant prostate cancer (CRPC). RNA binding protein PSF is upregulated in CRPC tissues comparedd with hormone-sensitive prostate cancer. Therefore, we examined the effect of newly developed small molecules targeting PSF in CRPC cells. In order to investigate the effect of PSF inhibiton in CRPC cells, we performed gene expression analysis in AR-negative CRPC cell line, DU145. We treated cells with vehicle, No.10-3, or C-30, which are supposed to inhibit PSF function.

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Effects of PSF knockdown in castration-resistant prostate cancer cells

Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. Androgen-deprivation therapy is the first-line treatment strategy for advanced prostate cancer. However, many tumors develop to castration-resistant prostate cancer (CRPC) and relapse. Thus, analyzing key factors for development of CRPC is important. We found PSF functions as RNA binding protein and transcription factor to promote castration-resistant tumor growth. High expression of PSF in metastatic prostate cancer tissue indicates the clinical relevance. In order to investigate the PSF function in CRPC cells, we performed gene expression in CRPC model cells derived from AR-positive prostate cancer cell lines after siPSF treatment.

2017-12-24 | GSE100239 | GEO

Expression data of EZH2-dependent genes in prostate cancer cell lines

Project description:EZH2 is frequently over-expressed in aggressive and metastatic solid tumors, including castration resistant prostate cancer (CRPC). We sought to determine EZH2-dependent gene expression programmes in prostate cancer progression, and found an intriguing functional switch of EZH2 from a repressor to an activator during CRPC development. We used microarrays to detail the global profiling of gene expression that are differentially regulated upon EZH2 depletion in two different prostate cancer cell lines. The androgen-dependent prostate cancer cell line LNCaP and the LNCaP-derived androgen-independent cell line LNCaP-abl (abl) were used for this study, as their transcription profiles strongly resemble that of clinical androgen-dependent and castration resistant prostate tumors, respectively. EZH2 was silenced by specific siRNAs in both cell lines, and total RNA was extracted and hybridized on Affymetrix microarrays.

2012-11-30 | E-GEOD-39452 | biostudies-arrayexpress

Homo sapiens

Project description:Castration-Resistant Prostate Cancer (CRPC)

| PRJNA149075 | ENA

NSD2 links dimethylation of histone H3 at lysine 36 to oncogenic programming [ChIP]

Project description:NSD2 (also named MMSET and WHSC1) is a histone lysine methyltransferase that is implicated in diverse diseases and commonly overexpressed in multiple myeloma due to a recurrent t(4;14) chromosomal translocation. However, the precise catalytic activity of NSD2 is obscure, preventing progress in understanding how this enzyme influences chromatin biology and myeloma pathogenesis. Here we show that dimethylation of histone H3 at lysine 36 (H3K36me2) is the principal chromatin-regulatory activity of NSD2. Catalysis of H3K36me2 by NSD2 is sufficient for gene activation. In t(4;14)-positive myeloma cells, the normal genome-wide and gene-specific distribution of H3K36me2 is obliterated, creating a chromatin landscape that selects for a transcription profile favorable for myelomagenesis. Catalytically active NSD2 confers xenograft tumor formation and invasion capacity upon t(4;14)-negative cells and NSD2 promotes oncogenic transformation of primary cells in an H3K36me2-dependent manner. Together our findings establish H3K36me2 as the primary product generated by NSD2, and demonstrate that genomic disorganization of this canonical chromatin mark initiates oncogenic programming. ChIP sequencing of H3K36me2 ChIP DNA from KMS11 and TKO2 cells using Illumina Solexa Genome Analyzer II single end sequencing protocol. The experiment contains two biological replicates of H3K36me2 ChIP DNA and input materials from KMS11 and TKO2 cells.

2011-11-29 | E-GEOD-29146 | biostudies-arrayexpress

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