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Gene expression profile changes in HDAC6 knockdown HT1080 cells cells after TLR3 stimulation

ABSTRACT: TLR3 stimulation by extracellular dsRNA (e.g. polyIC) induces expression of numerous genes. The knockdown of HDAC6 prior to TLR3 stimulation leads to an ablation of expression of IRF-3-dependent genes.

ORGANISM(S): Homo sapiens

PROVIDER: GSE43218 | GEO | 2013/12/31

SECONDARY ACCESSION(S): PRJNA184997

REPOSITORIES: GEO

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Gene expression profile changes in HDAC6 knockdown HT1080 cells cells after TLR3 stimulation

Project description:TLR3 stimulation by extracellular dsRNA (e.g. polyIC) induces expression of numerous genes. The knockdown of HDAC6 prior to TLR3 stimulation leads to an ablation of expression of IRF-3-dependent genes. Total RNA extracted from HT1080 cells expressing control-shRNA or HDAC6-shRNA, after 6 h of treatment with dsRNA (polyIC), compared to untreated controls

2013-12-31 | E-GEOD-43218 | biostudies-arrayexpress

Gene expression profile changes in PKC-inhibitor-pretreated HT1080 cells cells after TLR3 stimulation

Project description:TLR3 stimulation by extracellular dsRNA (e.g. polyIC) induces expression of numerous genes. The inhibition of PKC by Go6976 prior to TLR3 stimulation leads to an ablation of expression of IRF-3-dependent genes. Total RNA extracted from HT1080 cells with or without 1 h pretreatment with 5 uM Go6976, after 6 h of treatment with dsRNA (polyIC), compared to untreated controls

2013-04-03 | E-GEOD-43217 | biostudies-arrayexpress

Gene expression profile changes in PKC-inhibitor-pretreated HT1080 cells cells after TLR3 stimulation

2013-04-03 | GSE43217 | GEO

Assessment of the impact of the TLR3 L412F variant in terms of TLR3-sensitive transcript induction

Project description:we assessed the impact of TLR3 L412F at endogenous cellular levels upon double stranded RNA (dsRNA) stimulation, by performing RNA-sequencing in primary fibroblasts from individuals homozygous for the ancestral allele (n =2) or homozygous for TLR3 L412F (n = 4) upon extracellular Poly(I:C) stimulation that activates the TLR3 pathway. The average response of TLR3 L412F homozygotes was significantly decreased (mean Δ log2 fold-change = 0.93; Wilcoxon p <10-16) compared to that of cells with the ancestral allele, approaching that of TLR3-deficient cells, used as negative control.

2023-01-13 | GSE216304 | GEO

TLR3, TLR7, and TLR9 stimulation in murine dorsal root ganglion neurons

Project description:TLR3, TLR7, and TLR9 stimulation induces many mouse inflammatory and autoimmune cytokines or immune receptors

2011-03-02 | GSE27579 | GEO

The hTERT-RPE1 secretome after TLR3 stimulation

Project description:RPE cells perform a number of support functions in the inner eye including the secretion of signalling molecules and the maintenance of the immune privileged environment through communication with the immune system (Detrick and Hooks, 2010). Previous reports have demonstrated that RPE cells express a number of TLRs including the viral RNA receptor TLR3. To determine the complete secretory response of RPE cells downstream of poly(I:C) stimulation, we analysed conditioned medium from unstimulated or poly(I:C)-stimulated RPE cells using quantitative SILAC mass spectrometry.

2020-06-16 | PXD019445 | Pride

TLR3, TLR7, and TLR9 stimulation in murine dorsal root ganglion neurons

Project description:TLR3, TLR7, and TLR9 stimulation induces many mouse inflammatory and autoimmune cytokines or immune receptors DRGN were cultures 5 days prior to a 16 hour stimulation - Three separate studies were analyzed for inflammatory response

2011-03-02 | E-GEOD-27579 | biostudies-arrayexpress

Complete TLR3 deficiency

Project description:The objective of this study is to study the Toll-like receptor 3 (TLR3)-dependent gene expression in human fibroblast cells and peripheral blood mononuclear cells (PBMCs) Fibroblast cells and PBMCs from donors with autosomal recessive (AR) complete TLR3 deficiency and autosomal dominant (AD) partial TLR3 deficiency were collected for microarray analysis to measure the transcriptional responsiveness of TLR3 in fibroblast and PBMCs. A total of 3 healthy controls, 1 AD TLR3-deficient patient, 1 AR TLR3-deficient patient, 1 AR UNC-93B-deficient patient, 1 MyD88 deficient patien were used in this study. The fibroblast cells were cultured in DMEM medium supplemented with 10% fetal calf serum (FCS). The PBMCs were cultured in RPMI medium complemented with 10% FCS. Different kinetics (2 hours and 8 hours) of poly(I:C) (25ug/ml, purchased from Amersham) stimulations were performed, aiming to define TLR3-inducible genes in these human cells. A stimulation of IL-1β (20ng/ml, purchased from R&D system Inc.) was used as a positive activation control with same kinetics of stimulations. A total of one million cells per stimulation were used for fibroblasts, and around 1.5 million cells per stimulation for PBMCs.

2011-11-02 | E-GEOD-30951 | biostudies-arrayexpress

Hdac6 regulates Tip60-p400 function in stem cells (sequencing)

Project description:The Tip60 (also known as Kat5) lysine acetyltransferase functions broadly as a transcriptional co-activator that acetylates histones. In contrast, Tip60 functions in embryonic stem cells (ESCs) both to silence genes that promote differentiation and to activate genes required for proliferation. The mechanism by which Tip60 functions as a repressor is unknown. Here we show that the class II histone deacetylase Hdac6 co-purifies with Tip60-p400 complex from ESCs and is necessary for complete silencing of most differentiation genes targeted by Tip60. In contrast to differentiated cells, where Hdac6 is mainly cytoplasmic and does not interact with Tip60, Hdac6 is largely nuclear in ESCs and neural stem cells (NSCs) and interacts with Tip60-p400 in both cell types. Hdac6 is enriched at promoters bound by Tip60-p400 in ESCs, but while Tip60 binds on both sides of transcription start sites (TSSs), Hdac6 binding overlaps with only the downstream Tip60 peak. Surprisingly, Hdac6 does not deacetylate histones at these sites, but rather is required for Tip60 binding. These data suggest that nuclear exclusion of Hdac6 during differentiation plays a major role in modulation of Tip60-p400 function. We determined the genome-wide localization of Tip60 and Hdac6 in mouse ES cells, and examined genomic binding profiles of Tip60 and Hdac6 upon indicated knockdown by ChIP-seq. We examined genomic binding profiles of p400 upon indicated knockdown by ChIP-seq.

2013-11-20 | E-GEOD-42209 | biostudies-arrayexpress

HDAC6 and HSP90 control the functions of Foxp3+ T regulatory cells

Project description:Foxp3+ T-regulatory cells (Tregs) are key to immune homeostasis such that their diminished numbers or function can cause autoimmunity and allograft rejection. Foxp3+ Tregs express histone/protein deacetylases (HDACs) that regulate chromatin remodeling, gene expression and protein function. Pan-HDAC inhibitors developed for oncology enhance Treg production and suppression but have limited non-oncologic applications given their broad effects. We show, using HDAC6-deficient mice and WT mice treated with HDAC6-specific inhibitors, that HDAC6 inhibition promotes Treg suppressive activity in models of inflammation and autoimmunity, including multiple forms of experimental colitis and fully MHC-incompatible cardiac allograft rejection. Many of the beneficial effects of HDAC6 targeting are also achieved by inhibition of the HDAC6-regulated protein, HSP90. Hence, selective targeting of a single HDAC isoform, HDAC6, or its downstream target, HSP90, can promote Treg-dependent suppression of autoimmunity and transplant rejection. RNA from three independent samples from magnetically separated CD4+CD25+ Treg of HDAC6 knock out, compared to wild type (C57BL6) control

2011-05-01 | E-GEOD-27896 | biostudies-arrayexpress

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