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BioAssay: AID 720719

qHTS assay to identify small molecule agonists of the glucocorticoid receptor (GR) signaling pathway: Summary

The Glucocorticoid receptor (GR) is one of the members of the nuclear receptor family of ligand-dependent transcription factors. GR plays a critical role in carbohydrate, protein and lipid metabolisms and programmed cell death. CellSensor GR-bla HeLa cell line (Invitrogen) contains a beta-lactamase reporter gene under the control of an upstream activator sequence (UAS) stably integrated into more ..
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 Tested Compounds
 Tested Compounds
All(8121)
 
 
Active(180)
 
 
Inactive(7219)
 
 
Inconclusive(910)
 
 
 Tested Substances
 Tested Substances
All(10496)
 
 
Active(251)
 
 
Inactive(9155)
 
 
Inconclusive(1090)
 
 
AID: 720719
Data Source: Tox21 (GRA646)
BioAssay Type: Summary, Candidate Probes/Leads with Supporting Evidence
Depositor Category: Other
BioAssay Version:
Deposit Date: 2013-10-31
Modify Date: 2013-11-01

Data Table ( Complete ):           Active    All
Target
BioActive Compounds: 180
Depositor Specified Assays
AIDNameTypeComment
720691qHTS assay to identify small molecule agonists of the glucocorticoid receptor (GR) signaling pathwayconfirmatoryGR agonist mode screen
720687qHTS assay to test for compound auto fluorescence at 460 nm (blue) in HepG2 cellsconfirmatoryBlue (460 nm) auto fluorescence counter screen in HepG2 cells
720685qHTS assay to test for compound auto fluorescence at 460 nm (blue) in HepG2 cell free cultureconfirmatoryBlue (460 nm) auto fluorescence counter screen in HepG2 cell free culture
720678qHTS assay to test for compound auto fluorescence at 460 nm (blue) in HEK293 cellsconfirmatoryBlue (460 nm) auto fluorescence counter screen in HEK293 cells
720681qHTS assay to test for compound auto fluorescence at 460 nm (blue) in HEK293 cell free cultureconfirmatoryBlue (460 nm) auto fluorescence counter screen in HEK293 cell free culture
Description:
U.S. Tox21 Program

National Center for Advancing Translational Sciences [NCATS]
NIH Chemical Genomics Center [NCGC]
U.S. Environmental Protection Agency [EPA]
National Institutes of Environmental Health Sciences [NIEHS]
National Toxicology Program [NTP]
U.S. Food and Drug Administration [FDA]

Tox21 Assay Overview:

The Glucocorticoid receptor (GR) is one of the members of the nuclear receptor family of ligand-dependent transcription factors. GR plays a critical role in carbohydrate, protein and lipid metabolisms and programmed cell death. CellSensor GR-bla HeLa cell line (Invitrogen) contains a beta-lactamase reporter gene under the control of an upstream activator sequence (UAS) stably integrated into HeLa cells, a cervical cancer cell line that expresses glucocorticoid receptor. The activation of the reporter gene under culture conditions can be detected by fluorescence intensity. This cell line has been used to screen the Tox21 10K compound library and to identify the compounds that activate the GR signaling. The compounds were also tested for auto fluorescence that may interfere with the biological target readout resulting in potential false positives and/or negatives.
Protocol
Please refer to other AIDs 720691, 720687, 720685, 720678 and 720681, for detailed assay protocols.
Comment
This summary is written for the purposes of summarizing the compound activities from the project combining the results from both the GR agonist mode assay (AID 720691) and auto fluorescence counter screens (AIDs 720687, 720685, 720678 and 720681). For all inactive compounds, PUBCHEM_ACTIVITY_SCORE is 0. Active compounds have PUBCHEM_ACTIVITY_SCORE between 40 and 100. Potency and efficacy were used for determining relative score. Inconclusive compounds have PUBCHEM_ACTIVITY_SCORE between 5 and 30 determined by phenotype.

Disclaimer:

Although all reasonable efforts have been made to ensure the accuracy and reliability of the data, caution should be exercised when interpreting the results as artifacts are possible from nonspecific effects such as assay signal interference. The curve fitting and activity calls presented here are based on the NCATS analysis methods. Alternative analysis methods and interpretations of the data are available at EPA (http://actor.epa.gov) and NTP (http://tools.niehs.nih.gov/cebs3/ui/).

Result Definitions
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TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
ScoreThe BioAssay activity ranking scoreInteger
1Activity SummaryType of compound activity based on both the GR agonist mode screen and the auto fluorescence counter screens.String
2Ratio ActivityType of compound activity in the ratio readout of the GR agonist mode screen.String
3Ratio Potency (uM)*The concentration of sample yielding half-maximal activation in the ratio readout of the GR agonist mode screen.FloatμM
4Ratio Efficacy (%)Percent activation in the ratio readout of the GR agonist mode screen.Float%
5530 nm ActivityType of compound activity in the 530 nm readout of the GR agonist mode screen.String
6530 nm Potency (uM)The concentration of sample yielding half-maximal activation in the 530 nm readout of the GR agonist mode screen.FloatμM
7530 nm Efficacy (%)Percent activation in the 530 nm readout of the GR agonist mode screen.Float%
8460 nm ActivityType of compound activity in the 460 nm readout of the GR agonist mode screen.String
9460 nm Potency (uM)The concentration of sample yielding half-maximal activation in the 460 nm readout of the GR agonist mode screen.FloatμM
10460 nm Efficacy (%)Percent activation in the 460 nm readout of the GR agonist mode screen.Float%
11Blue (460 nm) auto fluorescence outcomeType of compound activity in the auto fluorescence counter screens.String
12Sample SourceWhere sample was obtained.String

* Activity Concentration.

Data Table (Concise)
Classification
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