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BioAssay: AID 428034

Amplification of HSF1 transcriptional activity in human heat shock-induced HeLa cells assessed as granule formation treated 1 hr before heat shock challenge measured after 2 hrs without recovery time by immunocytochemical staining

Pyrimido[5,4-e][1,2,4]triazine-5,7(1H,6H)-dione derivatives were investigated as novel small molecule amplifiers of heat shock factor 1 transcriptional activity. Lead optimization led to the discovery of compound 4A-13, which displayed potent HSF1 activity under mild heat stress (EC(50)=2.5microM) and significant cytoprotection in both rotenone (EC(50)=0.23microM) and oxygen-glucose deprivation cell toxicity models (80% protection at 2.5microM). ..more
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 Tested Compounds
 Tested Compounds
All(26)
 
 
Active(25)
 
 
Inactive(1)
 
 
 Tested Substances
 Tested Substances
All(26)
 
 
Active(25)
 
 
Inactive(1)
 
 
AID: 428034
Data Source: ChEMBL (579378)
BioAssay Type: Confirmatory, Concentration-Response Relationship Observed
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2010-05-26
Modify Date: 2014-05-16

Data Table ( Complete ):           View Active Data    View All Data
Target
Sequence: RecName: Full=Heat shock factor protein 1; Short=HSF 1; AltName: Full=Heat shock transcription factor 1; Short=HSTF 1
Description ..   
Protein Family: Vertebrate heat shock transcription factor
Comment ..   

Gene:HSF1     Related Protein 3D Structures     More BioActivity Data..
BioActive Compounds: 25
Description:
Title: Pyrimido[5,4-e][1,2,4]triazine-5,7(1H,6H)-dione derivatives as novel small molecule chaperone amplifiers.

Abstract: Pyrimido[5,4-e][1,2,4]triazine-5,7(1H,6H)-dione derivatives were investigated as novel small molecule amplifiers of heat shock factor 1 transcriptional activity. Lead optimization led to the discovery of compound 4A-13, which displayed potent HSF1 activity under mild heat stress (EC(50)=2.5microM) and significant cytoprotection in both rotenone (EC(50)=0.23microM) and oxygen-glucose deprivation cell toxicity models (80% protection at 2.5microM).
(PMID: 19502057)
Comment
Compounds with activity <= 50uM or explicitly reported as active by ChEMBL are flagged as active in this PubChem assay presentation.

Categorized Comment
Assay Type: Binding

Assay Data Source: Scientific Literature

BAO: Assay Format: cell-based format

Assay Cell Type: HeLa

Target Type: Target is a single protein chain

Result Definitions
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TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1EC50*EC50 PubChem standard valueFloatμM
3BEIBinding Efficiency Index(nM)Float
2SEISurface Efficiency Index(nM)Float
4LELigand EfficiencyFloat
5LLELipophilic Ligand EfficiencyFloat
6EC50 activity commentEC50 activity commentString
7EC50 standard flagEC50 standard flagInteger
8EC50 qualifierEC50 qualifierString
9EC50 published valueEC50 published valueFloatμM
10EC50 standard valueEC50 standard valueFloatnM

* Activity Concentration.

Data Table (Concise)
Data Table ( Complete ):     View Active Data    View All Data
Classification
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