Fatostatin

Catalog No.S9785 Batch:S978501

Technical Data

Formula

C₁₈H₁₈N₂S

Molecular Weight

294.41

CAS No.

125256-00-0

Solubility (25°C)*

In vitro

DMSO

75 mg/mL (254.74 mM)

Ethanol

75 mg/mL (254.74 mM)

Water

Insoluble

In vivo (Add solvents to the product individually and in order)

Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O	4.0mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 80 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5%DMSO 1 Corn oil	4.0mg/ml	Taking the 1 mL working solution as an example, add 50 μL of 80 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description

Fatostatin (125B11), a diarylthiazole derivative, is a specific inhibitor of Sterol regulatory element binding proteins (SREBPs) activation. Fatostatin binds to SCAP (SREBP cleavage-activating protein), and inhibits the ER-Golgi translocation of SREBPs. Fatostatin suppresses growth and enhances apoptosis in cancer cells.

Targets

SREBP ^[1]

In vitro

Fatostatin impairs the activation process of sterol regulatory element binding proteins (SREBPs), thereby decreasing the transcription of lipogenic genes in cells. Fatostatin inhibits the ER-Golgi translocation of SREBPs through binding to their escort protein, the SREBP cleavage-activating protein (SCAP), at a distinct site from the sterol-binding domain.^[1]

In vivo

Fatostatin blocks increases in body weight, blood glucose, and hepatic fat accumulation in obese ob/ob mice, even under uncontrolled food intake. Fatostatin may serve as a tool for gaining further insights into the regulation of SREBP.^[1]

Protocol (from reference)

Cell Assay:^{^[1]}	Cell lines CHO-K1 cells Concentrations 20 μM Incubation Time 20 h Method CHO-K1 cells are plated out onto a 96-well plate in medium A. The cells are transiently cotransfected with pCMV-PLAP-BP2, pCMV-SCAP, and pAc-b-gal, using Lipofectamine reagent. After incubation for 5 hr, the cells are washed with PBS and then incubated in medium B, in the absence or presence of fatostatin (20 μM) or sterols (10 μg/mL cholesterol and 1 μg/mL 25-hydroxycholesterol). After 20 hr of incubation, an aliquot of the medium is assayed for secreted alkaline phosphatase activity. The cells in each well are lysed and used for measurement of b-galactosidase activities. The alkaline phosphatase activity is normalized by the activity of b-galactosidase.
Animal Study:^{^[1]}	Animal Models 4-to-5-week-old homozygous male obese (ob/ob) mice (C57BL/6J) Dosages 30 mg/kg Administration IP

Cell Assay:^{^[1]}

Cell lines
CHO-K1 cells
Concentrations
20 μM
Incubation Time
20 h
Method
CHO-K1 cells are plated out onto a 96-well plate in medium A. The cells are transiently cotransfected with pCMV-PLAP-BP2, pCMV-SCAP, and pAc-b-gal, using Lipofectamine reagent. After incubation for 5 hr, the cells are washed with PBS and then incubated in medium B, in the absence or presence of fatostatin (20 μM) or sterols (10 μg/mL cholesterol and 1 μg/mL 25-hydroxycholesterol). After 20 hr of incubation, an aliquot of the medium is assayed for secreted alkaline phosphatase activity. The cells in each well are lysed and used for measurement of b-galactosidase activities. The alkaline phosphatase activity is normalized by the activity of b-galactosidase.

Animal Study:^{^[1]}

Animal Models
4-to-5-week-old homozygous male obese (ob/ob) mice (C57BL/6J)
Dosages
30 mg/kg
Administration
IP

References

Selleck's Fatostatin has been cited by 5 publications

The RORɣ/SREBP2 pathway is a master regulator of cholesterol metabolism and serves as potential therapeutic target in t(4;11) leukemia [ Oncogene, 2024, 43(4):281-293]	PubMed: 38030791
Cholesterol biosynthesis inhibition synergizes with AKT inhibitors in triple-negative breast cancer [ bioRxiv, 2024, 10.1101/2024.01.16.575899]	PubMed: none
p53 transcriptionally regulates SQLE to repress cholesterol synthesis and tumor growth [ EMBO Rep, 2021, e52537]	PubMed: 34459531
Inhibition of SREBP-1 Activation by a Novel Small-Molecule Inhibitor Enhances the Sensitivity of Hepatocellular Carcinoma Tissue to Radiofrequency Ablation [ Front Oncol, 2021, 11:796152]	PubMed: 34900747
Contribution of high-fat diet-induced PCSK9 upregulation to a mouse model of PCOS is mediated partly by SREBP2 [ Reproduction, 2021, 162(6):397-410]	PubMed: 34554110

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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