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A 77-01

Catalog No.
Potent ALK5 inhibitor
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
In stock
In stock
In stock

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Email: [email protected]

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Transforming growth factor (TGF)-β signaling facilitates tumor growth and metastasis in advanced cancer. Use of inhibitors of TGF-β signaling may thus be a novel strategy for the treatment of patients with such cancer. A-77-01 is a close analogue of A-83-01 and has a very similar biological profile of A-83-01. A-83-01 is found to decompose to A-77-01 under certain circumstances and A-77-01 is likely an active component or metabolite of its prodrug A-83-01.
In vitro: A-77-01 and A-83–01 almost completely inhibited the transcriptional activation induced by the constitutively active TGF-β type I receptor (ALK5-TD). A-77-01 and A-83-01 were five to 10 times more potent than the ALK-5 inhibitor SB-431542. In contrast, treatment with 1 μM A-77-01 or 1 μM A-83-01 had no effects on BMP-induced transcriptional activity. However, A-83-01, but not A-77–01, weakly suppressed the transcriptional activity induced by BMP4 at concentrations above 3 μM. A-83-01 and A-77-01 had weak effects on osmotic shock-induced p38 MAPK activity only at high concentrations. A-83-01 and A-77-01 restored the expression of E-cadherin and repressed that of fibronectin and N-cadherin more efficiently than SB-431542 [1].
In vivo: No animal in-vivo data available currently.
Clinical trial: A-77-01 is currently in the preclinical developlent stage and no clinical data are available.
[1] Tojo M, Hamashima Y, Hanyu A, Kajimoto T, Saitoh M, Miyazono K, Node M, Imamura T. The ALK-5 inhibitor A-83-01 inhibits Smad signaling and epithelial-to-mesenchymal transition by transforming growth factor-beta. Cancer Sci. 2005;96(11):791-800.

Chemical Properties

Physical AppearanceA solid
StorageStore at -20°C
Cas No.607737-87-1
Solubility≥14.3 mg/mL in DMSO, ≥8.84 mg/mL in EtOH with ultrasonic and warming, insoluble in H2O
Chemical Name4-[5-(6-methylpyridin-2-yl)-1H-pyrazol-4-yl]quinoline
SDFDownload SDF
Canonical SMILESCC1=CC=CC(=N1)C2=C(C=NN2)C3=CC=NC4=CC=CC=C34
Shipping ConditionEvaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.
General tipsFor obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.

Quality Control

Chemical structure

A 77-01