Name: SB-525334
Brand: Selleck Chemicals
SKU: S1476
Availability: InStock
Rating: 5 (116 reviews)

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Quality Control

Batch: Purity: 99.99%

99.99

Related Targets	PKC ROCK Bcr-Abl
Other TGF-beta/Smad Products	SB431542 LDN-193189 Galunisertib (LY2157299) LY2109761 LDN-193189 Dihydrochloride SIS3 Hydrochloride RepSox (E-616452) DMH1 A-83-01 Vactosertib (TEW-7197) SRI-011381 (C381)

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Concentration	Incubation Time	Formulation	Activity Description	PMID
MiaPaCa2	Cell Viability Assay	0-10 μM	72 h		efficiently reduces the viability with	22399597
HUVECs	Function Assay	10 μM	72 h		reduces the phosphorylation of smad2	23968981
HUVECs	Function Assay	10 μM	72 h		blocks signaling	23968981
HUVECs	Function Assay	10 μM	24/48/72 h		leads to a disruption of the HUVEC monolayer after 72 hr	23968981
rhPOSTN	Apoptosis Assay	0.5 μM	48 h		significantly decreases the number of apoptotic cells	24129188
AsPC1	Cell Viability Assay	0-10 μM	72 h		efficiently reduces the viability with	22399597
PASMCs	Function Assay	1 μM	15 min		inhibits TGF-β1-mediated proliferation of familial iPAH PASMCs at an IC50 of 295 nmol/L	19116361
ELT-3	Function Assay	0.5/1.0/2.0 μM	1 h	DMSO	inhibits TGF-β signaling in leiomyomas	17505012
Sf9	Function assay				Inhibition of human recombinant GST-fused ALK5 expressed in Sf9 cells, IC50 = 0.162 μM.	20472445
TC32	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for TC32 cells	29435139
A673	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for A673 cells	29435139
Saos-2	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Saos-2 cells	29435139
BT-37	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-37 cells	29435139
BT-12	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-12 cells	29435139
NB1643	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 cells	29435139
OHS-50	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for OHS-50 cells	29435139
Rh41	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh41 cells	29435139
SJ-GBM2	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SJ-GBM2 cells	29435139
SK-N-MC	qHTS assay				qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells	29435139
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

DMSO : 69 mg/mL (200.92 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 69 mg/mL

Water : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.450mg/ml (10.05mM)	Taking the 1 mL working solution as an example, add 50 μL of 69 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.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

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

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

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 μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, 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.

Chemical Information, Storage & Stability

Molecular Weight	343.42	Formula	C₂₁H₂₁N₅	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	356559-20-1	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CC1=NC(=CC=C1)C2=C(N=C(N2)C(C)(C)C)C3=CC4=NC=CN=C4C=C3

Mechanism of Action

Targets/IC₅₀/Ki	TGFβR1(ALK5) (Cell-free assay) 14.3 nM
In vitro	SB 525334 shows no inhibition in the enzymes ALK2, 3, and 6, with IC50 values > 10 μM. SB 525334 blocks phosphorylation induced by TGF-β1 and nuclear translocation of Smad2/3 in renal proximal tubule cells. SB 525334 also inhibits the increased mRNA expression levels of plasminogen activator inhibitor-1 (PAI-1) and procollagen α1(I) induced by TGF-β1 in A498 renal epithelial carcinoma cells at 1 μM). SB 525334 (1 μM) attenuates the heightened sensitivity to TGF-β1 exhibited by pulmonary artery smooth muscle cells (PASMCs) from patients with familial forms of idiopathic pulmonary arterial hypertension (PAH).
Kinase Assay	Kinase assay to determine the potency and selectivity of SB 525334
Kinase Assay	In order to determine the potency of SB 525334, purified GST-tagged kinase domain of ALK5 is incubated with purified GST-tagged full-length Smad3 in the presence of ³³P-γATP and different concentrations of SB 525334. The readout is radioactively labeled Smad3.To determine the selectivity of SB 525334, purified GST-tagged kinase domain of ALK2 and ALK4 are incubated with GST-tagged full-length Smad1 and Smad3, respectively, in the presence of different concentrations of SB 525334. IC50 values are calculated.
In vivo	SB 525334 (10 mg/kg/day) decreases the renal mRNA levels of PAI-1, procollagen α1(I), and procollagen α1(III) in a nephritis-induced renal fibrosis rat model. Furthermore, PAN-induced proteinuria is significantly inhibited by SB 525334 (10 mg/kg/day). SB 525334 may also be efficacious in mesenchymal tumors. SB 525334 (10 mg/kg/day) significantly decreases uterine mesenchymal tumor incidence, multiplicity, and size in Eker rats. SB 525334 significantly reverses pulmonary arterial pressure and inhibits right ventricular hypertrophy in a rat model of PAH. This is revealed by a significant reduction in pulmonary arteriole muscularization induced by monocrotaline (used to induce PAH) after treatment with SB 525334 (3 or 30 mg/kg). In a induced pulmonary fibrosis mice model, SB 525334 (10 mg/kg or 30 mg/kg) attenuates the histopathological alterations in the lung, and significantly decreased mRNA expression of Type I and III procollagen and fibronectin. SB 525334 also attenuates Smad2/3 nuclear translocation, myofibroblast proliferation, deposition of Type I collagen, and decreases CTGF-expressing cells.
References	[1] https://pubmed.ncbi.nlm.nih.gov/15769863/ [2] https://pubmed.ncbi.nlm.nih.gov/19116361/ [3] https://pubmed.ncbi.nlm.nih.gov/17505012/ [4] https://pubmed.ncbi.nlm.nih.gov/17274978/

Applications

Methods	Biomarkers	Images	PMID
Western blot	Fibronectin / E-cadherin / Hif-1α		29127306
Immunofluorescence	E-cadherin / Vimentin		27471572

Tech Support

Handling Instructions

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

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Frequently Asked Questions

Question 1:
I want to know the feasibility of using it via oral gavage in rodents (dosing, frequency, formulation…)?

Answer:
It can be used for oral gavage in rodents, and the vehicle we suggest is: 30% Propylene glycol, 5% Tween 80, 65% D5W (dextrose(5%)in water) at 20mg/ml maximum. Based on the following reference they administrated this compound at an estimated dose of 10 mg/kg/day in rat for 2 months: http://clincancerres.aacrjournals.org/content/13/10/3087.long

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SB-525334 ALK5 inhibitor

Chemical Structure

Molecular Weight: 343.42