SD-208

For research use only.

Catalog No.S7624

9 publications

CAS No. 627536-09-8

SD-208 is a selective TGF-βRI (ALK5) inhibitor with IC50 of 48 nM, >100-fold selectivity over TGF-βRII.

Selleck's SD-208 has been cited by 9 publications

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Biological Activity

Description

SD-208 is a selective TGF-βRI (ALK5) inhibitor with IC50 of 48 nM, >100-fold selectivity over TGF-βRII.

Targets

TGF-βRI (ALK5) ^[1]
(Cell-free assay)

48 nM

In vitro

SD-208 inhibits the cell growth and constitutive and TGF-beta-evoked migration and invasion, and enhances immunogenicity in murine SMA-560 and human LN-308 glioma cells. ^[1] SD-208 blocka TGF-beta-induced phosphorylation of the receptor-associated Smads, Smad2 and Smad3, and stimulates epithelial-to-mesenchymal transdifferentiation, migration, and invasiveness into Matrigel in vitro. ^[2] SD-208 also abolishes the promoting effect of TGF-β on neointimal smooth muscle-like cell (SMLC) proliferation and migration in vitro. ^[3]

In vivo

SD-208 (1 mg/mL, p.o.) significantly prolongs the median survival of SMA-560 glioma-bearing mice. ^[1] In syngeneic 129S1 mice, SD-208 (60 mg/kg/d, p.o.) inhibits primary R3T tumor growth, and reduces the number and the size of lung metastases. ^[2] In the murine aortic allograft model, SD-208 effectively reduces the formation of intimal hyperplasia of transplant arteriosclerosis (TA). ^[3]

Protocol

Kinase Assay:^[1]	- Collapse Kinase assay: Various kinase activities are assayed by measuring the incorporation of radiolabeled ATP into a peptide or protein substrate. The reactions are performed in 96-well plates and included the relevant kinase, substrate, ATP, and appropriate cofactors. The reactions are incubated and then stopped by the addition of phosphoric acid. Substrate is captured onto a phosphocellulose filter, which is washed free of unreacted ATP. The counts incorporated are determined by counting on a microplate scintillation counter. The ability of SD-208 to inhibit the respective kinase is determined by comparing counts incorporated in the presence of compound with those incorporated in the absence of compound.
Cell Research:^[1]	- Collapse Cell lines: Murine SMA-560 and human LN-308 glioma cells Concentrations: 1 μM Incubation Time: 48 hours Method: Glioma cells are cultured in the absence or presence of SD-208 (1 μM) for 48 hours. The cells are pulsed for the last 24 hours with [methyl-³H]thymidine (0.5 μCi) and harvested, and incorporated radioactivity is determined in a liquid scintillation counter. (Only for Reference)
Animal Research:^[1]	- Collapse Animal Models: VM/Dk mice bearing SMA-560 tumors Dosages: 1 mg/mL Administration: p.o. (Only for Reference)

References

Solubility (25°C)

In vitro	DMSO	9 mg/mL warmed (25.51 mM)
	Water	Insoluble
	Ethanol	Insoluble
In vivo	Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 1% methylcellulose For best results, use promptly after mixing.	8mg/mL

* 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.

Chemical Information Download SD-208 SDF

Molecular Weight	352.75
Formula	C₁₇H₁₀ClFN₆
CAS No.	627536-09-8
Storage	3 years-20°C powder 2 years-80°C in solvent
Synonyms	N/A
Smiles	C1=CC(=C(C=C1Cl)C2=NC3=NC=CN=C3C(=N2)NC4=CC=NC=C4)F

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Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

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Step 2: Enter the in vivo formulation (Different batches have different solubility ratios, please contact Selleck to provide you with the correct ratio)

% DMSO+ % + % Tween 80+ % ddH₂O

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Working concentration： mg/ml；

Method for preparing DMSO master liquid: ： mg drug pre-dissolved in μL DMSO (Master liquid concentration mg/mL， Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation：Take DMSO master liquid, next addμL PEG300， mix and clarify, next addμL Tween 80，mix and clarify, next add μL ddH₂O，mix and clarify.

Note：1.Please make sure the liquid is clear before adding the next solvent.
2.Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3

If you have any other enquiries, please leave a message.

Frequently Asked Questions

Question 1:
How to reconstitute the compound for in vivo studies?
Answer:
We recommend to dissolve S7624 in 1%methylcellulose or 1%CMC-Na which is a suspension for oral gavage administration.

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SD-208