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A77-01

Alias: A77-01 A-77-01 A 77-01
Cat No.:V7118 Purity: ≥98%
A 77-01 is a potent inhibitor of the TGF-β type I receptor family ALK5 with IC50 of 25 nM.
A77-01
A77-01 Chemical Structure CAS No.: 607737-87-1
Product category: TGF-β Receptor
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
10mg
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Product Description
A 77-01 is a potent inhibitor of the TGF-β type I receptor family ALK5 with IC50 of 25 nM.
Biological Activity I Assay Protocols (From Reference)
ln Vitro
Treatment with A-77-01 (0.01-10 µM; 25 hours; Mv1Lu cells) potently suppresses the concentration-dependent transcriptional activation elicited by TGF-β [1]. The growth-inhibitory effects of TGF-β are successfully prevented when Mv1Lu cells are treated with A-77-01 (1 µM) for 24-72 hours [1]. TGF-β-induced Smad2 phosphorylation is inhibited when HaCaT cells are treated with A-77-01 (1 µM) for 30 minutes [1].
Cell Assay
RT-PCR[1]
Cell Types: Mv1Lu Cell
Tested Concentrations: 0.01 µM, 0.03 µM, 0.1 µM, 0.3 µM, 1 µM, 3 µM, 10 µM
Incubation Duration: 25 hrs (hours)
Experimental Results: Inhibition of TGF-β-induced luciferase activity Concentration-dependent fashion.

Cell viability assay [1]
Cell Types: Mv1Lu Cell
Tested Concentrations: 1 µM
Incubation Duration: 24 hrs (hours), 48 hrs (hours), 72 hrs (hours)
Experimental Results: Effectively prevents the growth inhibitory effect of TGF-β.

Western Blot Analysis[1]
Cell Types: HaCaT cells
Tested Concentrations: 1 µM
Incubation Duration: 30 minutes
Experimental Results: Inhibition of TGF-β-induced Smad2 phosphorylation.
References

[1]. The ALK-5 inhibitor A-83-01 inhibits Smad signaling and epithelial-to-mesenchymal transition by transforming growth factor-beta. Cancer Sci. 2005 Nov;96(11):791-800.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C18H14N4
Molecular Weight
286.33
Exact Mass
286.122
CAS #
607737-87-1
PubChem CID
10469233
Appearance
Off-white to light yellow solid powder
Density
1.254g/cm3
Boiling Point
481.63ºC at 760 mmHg
Flash Point
256.391ºC
Index of Refraction
1.685
LogP
3.995
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
3
Rotatable Bond Count
2
Heavy Atom Count
22
Complexity
374
Defined Atom Stereocenter Count
0
InChi Key
KJTYZDORHCDZPS-UHFFFAOYSA-N
InChi Code
InChI=1S/C18H14N4/c1-12-5-4-8-17(21-12)18-15(11-20-22-18)13-9-10-19-16-7-3-2-6-14(13)16/h2-11H,1H3,(H,20,22)
Chemical Name
4-[5-(6-methylpyridin-2-yl)-1H-pyrazol-4-yl]quinoline
Synonyms
A77-01 A-77-01 A 77-01
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~25 mg/mL (~87.31 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (8.73 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (8.73 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 2.5 mg/mL (8.73 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.4925 mL 17.4624 mL 34.9247 mL
5 mM 0.6985 mL 3.4925 mL 6.9849 mL
10 mM 0.3492 mL 1.7462 mL 3.4925 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution 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 stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Biological Data
  • A‐77‐01 (11) and A‐83‐01 (15) effectively inhibited TGF‐β‐induced transcriptional activation in concentration‐dependent fashion. (a, b) Mv1Lu cells were transfected with 9xCAGA‐luciferase reporter gene. Eight hours after transfection, cells were pretreated for 1 h with various concentrations of A‐77‐01 (11) (a) or A‐83‐01 (15) (b), or 0.3 µM SB‐431542, then cultured with TGF‐β 1 ng/mL) for 24 h. (c) C2C12 cells were transfected with (BRE)2‐luciferase reporter gene. Eight hours after transfection, cells were pretreated for 1 h with various concentrations of A‐77‐01 (11) (a) or A‐83‐01 (15) (b), or 1 µM SB‐431542, then cultured with BMP 20 ng/mL) for 24 h. Smad7 (0.15 µg) was transfected into Mv1Lu cells and used as a control (lane 10). Luciferase activities (% of control) are the means of results of duplicate assays, with error bars representing standard deviation.[1].Tojo M, et al. The ALK-5 inhibitor A-83-01 inhibits Smad signaling and epithelial-to-mesenchymal transition by transforming growth factor-beta. Cancer Sci. 2005 Nov;96(11):791-800.
  • A‐83‐01 (15) prevented the growth‐inhibitory effects of TGF‐β. (a) Mv1Lu cells were pretreated for 1 h with 1 µM of A‐77‐01 (11), A‐83‐01 (15), or SB‐431542, cultured with TGF‐β 1 ng/mL) for 24 h, 48 h or 72 h, and cell numbers were counted. (b) Mv1Lu cells were pretreated for 1 h with various concentrations of A‐83‐01 (15) or SB‐431542, cultured with TGF‐β 1 ng/mL) for 48 h, and cell numbers were counted.[1].Tojo M, et al. The ALK-5 inhibitor A-83-01 inhibits Smad signaling and epithelial-to-mesenchymal transition by transforming growth factor-beta. Cancer Sci. 2005 Nov;96(11):791-800.
  • Effects of A‐83‐01 (15) and A‐77‐01 (11) on Smad2 phosphorylation and MAPK activities. (a) A‐77‐01 (11) and A‐83‐01 (15) inhibited TGF‐β‐induced phosphorylation of Smad2. HaCaT cells were pretreated for 30 min with 1 µM of A‐77‐01 (11), A‐83‐01 (15), or SB‐431542, and then treated for 1 h with TGF‐β 1 ng/mL). Cell lysates were subjected to immunoblotting with an antiphospho‐Smad2 antibody (top panel) or anti‐Smad2/3 antibody (lower panel). (b) A‐77‐01 (11) and A‐83‐01 (15) had no significant effect on fetal bovine serum (FBS)‐induced activation of ERK1 and ERK2. HaCaT cells were serum‐starved for 24 h and pretreated for 30 min with various concentrations of A‐77‐01 (11) or A‐83‐01 (15), or 10 µM MEK1/2 inhibitor U0126, followed by treatment with 20% FBS for 30 min. Cell lysates were subjected to immunoblotting with antiphospho‐ERK1/2 antibody (upper panel) or anti‐ERK1/2 antibody (lower panel). [1].Tojo M, et al. The ALK-5 inhibitor A-83-01 inhibits Smad signaling and epithelial-to-mesenchymal transition by transforming growth factor-beta. Cancer Sci. 2005 Nov;96(11):791-800.
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