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Effects of SUV39H1 depletion on gene expression in HeLa cells

ABSTRACT: HeLa cells were transiently transfected with siRNA against SUV39H1, a histone H3K9 methyltransferase. Several genes were significantly up- or down-regulated.

ORGANISM(S): Homo sapiens

PROVIDER: GSE59243 | GEO | 2015/08/01

SECONDARY ACCESSION(S): PRJNA254799

REPOSITORIES: GEO

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Effects of SUV39H1 depletion on gene expression in HeLa cells

Project description:HeLa cells were transiently transfected with siRNA against SUV39H1, a histone H3K9 methyltransferase. Several genes were significantly up- or down-regulated. HeLa cells were transiently transfected with siRNA against SUV39H1 or negative control siRNA. Then total RNA was extracted.

2015-08-01 | E-GEOD-59243 | biostudies-arrayexpress

Profiling gene expression in HeLa cells following TFEB transient transfection

Project description:Total RNA samples from three biological replicates in which TFEB was transiently overexpressed in HeLa cells by transfection using a pcDNA3 vector. As negative control, we used total RNA samples from HeLa cells transfected with an empty pcDNA3 vector.

2009-07-01 | GSE16267 | GEO

Expression data from Adriamycin-treated Emu-myc; Suv39h1-/- B-cell lymphoma

Project description:Oncogene-induced senescence (OIS), a terminal cell cycle block countering (pre)neoplastic lesions, is characterised on the molecular level by trimethylated histone H3 lysine 9 (h3K9me3), a transcriptionally repressive chromatin mark linked to silencing of S-phase-promoting genes. Whether H3K9-governed chromatin remodelling influences anticancer treatment-induced senescence (TIS) and whether functional control of this mark impacts on treatment outcome is not known. We used global gene expression profiling by microarrays to gain insight into the molecular responses of Emu-myc; Suv39h1-/- B-cell lymphoma cells to senescence-inducing anticancer agent Adriamycin (ADR). Primary lymphoma cells isolated from lymph nodes of Emu-Myc; Suv39h1-/- mice were used. In this model, the c-Myc oncogene is constitutively expressed in the cells of the B-cell lineage, leading to spontaneous development of aggressive B-cell lymphomas. Adriamycin (ADR), a cytostatic drug used as a standard part of several lymphoma treatment regimens, is known to massively induce TIS in Suv39h1-proficient lymphomas, protected from apoptosis by Bcl-2 over expression (Myc;Bcl2). In order to discern the impact of Suv39h1 to TIS induction under these conditions, we analysed here transcriptional profiles of matched pairs of Emu-myc;Suv39h1-/-;Bcl2 lymphomas, untreated or treated for 5 days with ADR.

2013-07-04 | E-GEOD-44355 | biostudies-arrayexpress

Homo sapiens

Project description:Expression data from HeLa cells transiently transfected with control siRNA or SON siRNA

| PRJNA135949 | ENA

Expression of Data from EHMT1 siRNA transfected HeLa cell treated with TNF

Project description:We used microarrays to detail the global programme of gene expression to identify TNF-induced genes that are negatively regulated by EHMT1 Transcriptional homeostasis relies on the balance between positive and negative regulation of gene transcription. Methylation of histone H3 lysine 9 (H3K9) is commonly correlated with gene repression. Here, we report that a euchromatic H3K9 methyltransferase, EHTM1, functions as a negative regulator in both the NF-?B- and type I interferon-mediated gene induction pathways. EHMT1 catalyzes H3K9 methylation at promoters of NF-?B target genes. Moreover, EHMT1 interacts with p50 and, surprisingly, p50 appears to repress the expression of type I interferon genes and genes activated by type I interferons by recruiting EHMT1 to catalyze H3K9 methylation at their promoter regions. Silencing the expression of EHMT1 by RNA interference enhances expression of a subset NF-?B regulated genes, augments interferon production and augments antiviral immunity. HeLa cells were double-transfected with control or EHMT1 specific siRNAs. The cells were then treated with or without TNFa for 2 hours followed by RNA extraction and hybridization on Affymetrix microarrays.

2012-07-30 | E-GEOD-39744 | biostudies-arrayexpress

Expression data from Human Tax transfected HeLa cell

Project description:Human T cell leukemia virus type 1 (HTLV-1) Tax is potent activator of viral and cellular gene expression that interacts with a number of cellular proteins. In this study, a large-scale host cell signaling events related to cellular proliferation were used to identify genes involved in Tax-mediated cell signaling events related to cellular proliferation and apoptosis. HeLa cell transiently transfected with with pCAGGS vector for control sample was compared with HeLa cell transiently transfected with with pCAGGS-Tax-FLAG vector. These cells were incubated for 30h after transfection and were used for total RNA isolation.

2013-03-21 | E-GEOD-34750 | biostudies-arrayexpress

Probing off-target effect of LMNA siRNA and pro-siRNA in HeLa-d1EGFP cell line

Project description:We have develped a novel method of making siRNAs (named pro-siRNA for prokaryotic siRNA). To evaluate off-targeting of pro-siRNA, we compared mRNA expression profile of HeLa-d1EGFP cells transfected with 4 nM LMNA siRNAs and pro-siRNAs by microarray.

2013-02-06 | GSE44105 | GEO

CD8+ T cell responsiveness to anti-PD-1 is epigenetically regulated by Suv39h1 in melanomas [scRNA-seq]

Project description:Purpose: We show that genetic ablation or pharmacological inhibition of H3K9-methyl transferase Suv39h1 delays tumor growth and potentiates tumor rejection by anti-PD-1.

2022-03-14 | GSE198422 | GEO

CD8+ T cell responsiveness to anti-PD-1 is epigenetically regulated by Suv39h1 in melanomas [ATAC-seq]

Project description:Purpose: We show that genetic ablation or pharmacological inhibition of H3K9-methyl transferase Suv39h1 delays tumor growth and potentiates tumor rejection by anti-PD-1.

2022-03-14 | GSE198421 | GEO

Profiling gene expression in HeLa cells following TFEB transient transfection

2010-04-09 | E-GEOD-16267 | biostudies-arrayexpress

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