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BioAssay: AID 715950

Transactivation of human LXR-beta transfected in HEK293 cells at 100 uM after 24 hrs by luciferase reporter gene assay

The present study reports a novel liver X receptor (LXR) activator, ethyl 2,4,6-trihydroxybenzoate (ETB), isolated from Celtis biondii. Using a reporter gene assay, time-resolved fluorescence resonance energy transfer (TR-FRET), and surface plasmon resonance (SPR) analysis, we showed that ETB directly bound to and stimulated the transcriptional activity of LXR-alpha and LXR-beta. In macrophages, more ..
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 Tested Compounds
 Tested Compounds
All(1)
 
 
Unspecified(1)
 
 
 Tested Substances
 Tested Substances
All(1)
 
 
Unspecified(1)
 
 
 Related BioAssays
 Related BioAssays
AID: 715950
Data Source: ChEMBL (883693)
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2013-06-29
Modify Date: 2014-05-26

Data Table ( Complete ):           All
Target
Sequence: RecName: Full=Oxysterols receptor LXR-beta; AltName: Full=Liver X receptor beta; AltName: Full=Nuclear receptor NER; AltName: Full=Nuclear receptor subfamily 1 group H member 2; AltName: Full=Ubiquitously-expressed nuclear receptor
Description ..   
Protein Family: The ligand binding domain of Liver X receptors, a family of nuclear receptors of ligand-activated transcription factors
Comment ..   

Gene:NR1H2     Related Protein 3D Structures     More BioActivity Data..
Tested Compound:
Description:
Title: Ethyl 2,4,6-trihydroxybenzoate is an agonistic ligand for liver X receptor that induces cholesterol efflux from macrophages without affecting lipid accumulation in HepG2 cells.

Abstract: The present study reports a novel liver X receptor (LXR) activator, ethyl 2,4,6-trihydroxybenzoate (ETB), isolated from Celtis biondii. Using a reporter gene assay, time-resolved fluorescence resonance energy transfer (TR-FRET), and surface plasmon resonance (SPR) analysis, we showed that ETB directly bound to and stimulated the transcriptional activity of LXR-alpha and LXR-beta. In macrophages, hepatocytes, and intestinal cells, ETB suppressed cellular cholesterol accumulation in a dose-dependent manner and induced the transcriptional activation of LXR-alpha/-beta-responsive genes. Notably, ETB did not induce lipogenic gene expression or cellular triglyceride accumulation in hepatocytes. These results suggest that ETB is a dual-LXR modulator that regulates the expression of key genes in cholesterol homeostasis in multiple cells without inducing lipid accumulation in HepG2 cells.
(PMID: 22579484)
Categorized Comment
Assay Type: Binding

Assay Data Source: Scientific Literature

BAO: Assay Format: cell-based format

Assay Cell Type: HEK293

Target Type: Target is a single protein chain

Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1Activity activity commentActivity activity commentString
2Activity standard flagActivity standard flagInteger
3Activity qualifierActivity qualifierString
4Activity published valueActivity published valueFloat%
5Activity standard valueActivity standard valueFloat%

Data Table (Concise)
Classification
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