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The effect of PLC inhibitor on cold responsive transcriptome.

ABSTRACT: Identification of genes induced with the cold via inhibition of the phospholipase C - To answer this question we chose a pharmacological approach. We decided to use molecules that are going to inhibit PLC. U73343 is an inactive homolog of U73122 (inhibitor of the phospholipase C pathway). Keywords: treated vs untreated comparison

ORGANISM(S): Arabidopsis thaliana

PROVIDER: GSE13295 | GEO | 2009/03/03

SECONDARY ACCESSION(S): PRJNA109505

REPOSITORIES: GEO

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The effect of PLC inhibitor on cold responsive transcriptome.

Project description:Identification of genes induced with the cold via inhibition of the phospholipase C - To answer this question we chose a pharmacological approach. We decided to use molecules that are going to inhibit PLC. U73343 is an inactive homolog of U73122 (inhibitor of the phospholipase C pathway). Keywords: treated vs untreated comparison 3 dye-swap - CATMA arrays

2010-05-22 | E-GEOD-13295 | biostudies-arrayexpress

Transcription profiling of cold and phosphlipase treated Arabidopsis tto analyse the effect of Phospholipases C and D

Project description:The study aims at determining the genes that are induced or repressed by cold in the suspension cells. It also aims at monitoring the effect of inhibitors of PLC (U73122 vs. U73343) and PLD (ethanol vs. tertiary butanol) on cold response at the transcription level. To answer this question we chose a pharmacological approach. We decided to use molecules that are going to inhibit PLC or PLD. For PLC we use U73122 and its inactive analog as a control; for PLD we used a primary alcohol (ethanol) and a tertiary alcohol (tert-butanol) as a control. We therefore extracted RNA after the following treatments: 4 °C 22 °C 4 °C + 0.9% primary-ethanol 4 °C + 0.9% tertiary-butanol 4 °C + 60 micromolaire U73122 4 °C + 60 micromolaire U73343 The exposure at 4 °C was 4 hours.

2005-08-26 | E-MEXP-259 | biostudies-arrayexpress

PLC-γ1 Can Regulate T-Cell Activation by Positive and Negative Feedback via Lck

Project description:Phospholipase C gamma 1 (PLC-γ1) occupies a critically important position in the T cell signaling pathway. While its functions as a regulator of both Ca2+ signaling and PKC-family kinases are well characterized, PLC-γ1’s role in the regulation of early T cell receptor signaling events is incomplete. Activation of the T cell receptor leads to the formation of a signalosome complex between SLP-76, LAT, PLC-γ1, Itk, and Vav1. Recent studies have revealed the existence of both positive and negative feedback pathways from components of the signalosome complex to the apical kinase in the pathway, Lck. To determine the role, if any, of PLC-γ1 in these feedback networks, we performed a quantitative phosphoproteomic analysis of the PLC-γ1-deficient T cells. These data revealed a previously unappreciated role for PLC-γ1 in the positive regulation of Zap-70 and T cell receptor tyrosine phosphorylation. Conversely, PLC-γ1 negatively regulated the phosphorylation of signalosome associated proteins including previously established Lck substrate phosphorylation sites within this complex. While the positive and negative regulatory phosphorylation sites on Lck were largely unchanged, Tyr192 phosphorylation was elevated in Jgamma1. The data supports a model wherein Lck’s targeting, but not its kinase activity is altered by PLC-γ1, possibly through Lck Tyr192 phosphorylation.

2017-06-28 | PXD005165 | Pride

Inhibition of the PI-PLC by U73122

Project description:au13-01_pi-plc What are the genes that are regulated by basal PI-PLC? Arabidopsis thaliana cells in suspension (5-days old). Cultivated in environment (middle) Gamborg+2,4-D. Added inhibitors 4 hr before extraction of the RNAs. We try to determine the role of phospholipases C ( PI-PLC) in the control of the basal expression of the genes of suspension of Arabidopsis thaliana. A first experience in which we used the edelfosine as inhibitor allowed us to identify numerous genes the basal expression of which is altered by this inhibition. We want to confirm these results with another inhibitor. 4 dye-swap - treated vs untreated comparison - treatment variations

2013-09-01 | E-GEOD-46941 | biostudies-arrayexpress

Inhibition of the PI-PLC by U73122

2013-09-01 | GSE46941 | GEO

edelfosine and wortmannin effect at 22°c and 4°c-PI4-kinase and phospholipase C signaling in cold response

Project description:rs09-04_plc_2 - edelfosine and wortmannin effect at 22°c and 4°c - Is there an overlap between PI4-kinase and phospholipase C signaling in cold response ? - Experiments were carried out with Columbia suspension cells. Cells were treated or not with edelfosine (PLC inhibitor) or wortmannin (PI4-kinase inhibitor). These agents were added 15 min before cold stress. ARN were extracted 4h after stress. Controls were made at 22°C. Keywords: treated vs untreated comparison 11 dye-swap - CATMA arrays

2010-08-01 | E-GEOD-19850 | biostudies-arrayexpress

PLC/PRF/5 cells ChIP on CHIP

Project description:PLC/PRF/5 cells were harvested for chromatin immunoprecipitation followed by CHIP analysis performed on Aligent platform.

2017-07-10 | GSE100968 | GEO

RRBS of PCK1 knockout in PLC/PRF/5

Project description:RRBS analysis of Parental and PCK1 knockout groups of PLC/PRF/5 cells.

2023-07-06 | GSE221725 | GEO

edelfosine and wortmannin effect at 22°c and 4°c-PI4-kinase and phospholipase C signaling in cold response

2010-08-01 | GSE19850 | GEO

Expression data from hepatitis E virus inoculated PLC/PRF/5 cells

Project description:Hepatitis E virus (HEV) is an important causative pathogen of acute hepatitis. Because of the absence of an in vitro culture system for HEV, research has been greatly impeded. And interaction between HEV and host cells was mainly studied by tansfection/transinfection system, such as Adeno virus transinfection system. We developed an in vitro culture system for HEV in PLC/PRF/5 cells. With this in vitro culture system, we studied the gene expression profile change by HEV infection. Using a microarray assay, we analysed genes of PLC/PRF/5 cells, whose transcription level could be changed by HEV infection. Five flasks of PLC/PRF/5 cells inoculated with HEV were used as test sample, and five flasks inoculated with serum-free DMEM/199 medium were used as control samples. Both test and control flasks were cultured under the same conditions. Sixty days after inoculation, the test and control flasks was resolved with Trizol and analysed with Affymetrix HG-U133 Plus 2 array.

2014-01-01 | E-GEOD-53731 | biostudies-arrayexpress

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