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BioAssay: AID 515378

Antioxidant activity assessed as nitric oxide scavenging activity by spectrophotometry

Xanthones are a class of oxygen-containing heterocyclic compounds widely distributed in nature. The natural derivatives can present different substitutions in the xanthone core that include hydroxyl, methoxyl, prenyl and glycosyl groups. The inclusion of aryl groups has only been reported for a few synthetic derivatives, the 2,3-diaryl moiety being recently introduced by our group. Xanthones are more ..
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 Tested Compounds
 Tested Compounds
All(8)
 
 
Active(6)
 
 
Unspecified(2)
 
 
 Tested Substances
 Tested Substances
All(8)
 
 
Active(6)
 
 
Unspecified(2)
 
 
 Related BioAssays
 Related BioAssays
AID: 515378
Data Source: ChEMBL (663232)
BioAssay Type: Confirmatory, Concentration-Response Relationship Observed
Depositor Category: Literature, Extracted
BioAssay Version:
Deposit Date: 2011-09-17
Modify Date: 2014-05-27

Data Table ( Complete ):           View Active Data    View All Data
BioActive Compounds: 6
Description:
Title: 2,3-diarylxanthones as strong scavengers of reactive oxygen and nitrogen species: a structure-activity relationship study.

Abstract: Xanthones are a class of oxygen-containing heterocyclic compounds widely distributed in nature. The natural derivatives can present different substitutions in the xanthone core that include hydroxyl, methoxyl, prenyl and glycosyl groups. The inclusion of aryl groups has only been reported for a few synthetic derivatives, the 2,3-diaryl moiety being recently introduced by our group. Xanthones are endowed with a broad spectrum of biological activities, many of them related to their antioxidant ability, including the scavenging of reactive oxygen species (ROS) and reactive nitrogen species (RNS), as well as metal chelating effects. Considering the interesting and promising antioxidant activities present in compounds derived from the xanthone core, the main goal of this work was to evaluate the scavenging activity of the new 2,3-diarylxanthones for ROS, including superoxide radical (O2-), hydrogen peroxide (H2O2), singlet oxygen (1O2), peroxyl radical (ROO.) and hypochlorous acid (HOCl), and RNS, including nitric oxide (.NO) and peroxynitrite anion (ONOO-). The obtained results revealed that the tested 2,3-diarylxanthones are endowed with outstanding ROS and RNS scavenging properties, considering the nanomolar to micromolar range of the IC50 values found. The xanthones with two catechol rings were the most potent scavengers of all tested ROS and RNS. In conclusion, the new 2,3-diarylxanthones are promising molecules to be used for their potential antioxidant properties.
(PMID: 20709556)
Comment
Compounds with activity <= 50uM or explicitly reported as active by ChEMBL are flagged as active in this PubChem assay presentation.
Putative Target:
ChEMBL Target ID: 22226
Target Type: UNCHECKED
Pref Name: Unchecked
Confidence: Default value - Target unknown or has yet to be assigned
Relationship Type: Default value - Target has yet to be curated
Categorized Comment - additional comments and annotations
From ChEMBL:
Assay Type: Functional
Assay Data Source: Scientific Literature
Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
1IC50*IC50 PubChem standard valueFloatμM
2IC50 activity commentIC50 activity commentString
3IC50 standard flagIC50 standard flagInteger
4IC50 qualifierIC50 qualifierString
5IC50 published valueIC50 published valueFloatμM
6IC50 standard valueIC50 standard valueFloatnM
7IC50 data validityIC50 data validityString

* Activity Concentration.

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