NS-181
NS-181 is an orally active MetAP2 inhibitor and antiamebic agent with oral effectiveness.NS-181 functionally inhibits methionine aminopeptidase 2, a protein critical for Entamoeba histolytica proliferation. NS-181 exerts antiamebic activity against Entamoeba histolytica, leading to resolution of amebic liver abscess. NS-181 can be used for the research of amebiasis.
For research use only. We do not sell to patients.
- CAS No.: 3075693-63-6
- Formula: C24H28O7
- Molecular Weight:428.47
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
In Vitro
NS-181 (30 min) resists hamster liver microsome-mediated metabolism and retains potent antiamebic activity (ED50 of 14.6 nM) after 30 min of microsomal incubation[1].
NS-181 (10 μM) exhibits no cytotoxicity against Huh-7 human hepatocellular carcinoma cells[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:unstated specific strain[1]
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Dosage:15 mg/kg (subcutaneous); 30 mg/kg (oral)
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Administration:s.c.; 5 consecutive days; p.o.; 5 consecutive days
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Result:Achieved complete resolution of amebic liver abscess, with abscess weight proportion relative to whole liver reduced to near 0%, amebic mRNA levels in liver reduced, and inflammation levels decreased to match noninfected controls.
Significantly reduced amebic liver abscess size, with abscess weight proportion relative to whole liver markedly decreased compared to vehicle controls.
Chemical Information
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CAS No. 3075693-63-6
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Molecular Weight 428.47
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Formula C24H28O7
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SMILES
O=C(O[C@H](C(CC1)=O)[C@@]([C@@]2(C)O[C@@H]2C/C=C(C)\C)(O)[C@]31CO3)/C=C/C4=CC=CC(O)=C4
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocols
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Cell Viability Determination by MTT Colorimetric Assay
The following protocol uses the MTT colorimetric assay as a classic literature-established method for assessing cell viability/metabolic activity in cultured mammalian cells. MTT[3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] is reduced by metabolically active cells to a colored formazan product; the amount of formazan is quantified spectrophotometrically and provides an indirect measure of metabolically active viable cells. Importantly, MTT reduction reflects cellular oxidoreductase/metabolic activity rather than an absolute direct count of living cells, so changes in cellular metabolism can alter the signal independently of cell number.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)