GW441756

For research use only.

Catalog No.S2891

9 publications

GW441756 Chemical Structure

CAS No. 504433-23-2

GW441756 is a potent, selective inhibitor of TrkA with IC50 of 2 nM, with very little activity to c-Raf1 and CDK2. GW441756 produces a relevant increase of caspase-3 that leads to apoptosis.

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Selleck's GW441756 has been cited by 9 publications

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  • Thermal latency and mechanical allodynia were normalized in the RTXw1 + 4MC group (n= 6). In these mice, thermal hypoalgesia reappeared within 2 days of GW441756 injection (D). GW441756 did not affect mechanical thresholds (E) in the RTXw1 + 4MC group. (F, G) The diagrams show behavioral responses of naïve mice to either gambogic amide (open square, n = 6) or GW441756 (open circle, n =6). Gambogic amide induced mild thermal hyperalgesia within 2 days of injection but GW441756 did not affect thermal latencies (F). Both gambogic amide and GW441756 did not affect mechanical responses. *P < 0.05, **P < 0.01, and ***P < 0.001: paired t-test comparing preinjection vs. postinjection effects. #P < 0.05, ##P < 0.01, and ###P < 0.001: between drugs and saline treatments.

    Exp Neurol, 2018, 300:87-99. GW441756 purchased from Selleck.

    Effect of TrkA inhibitorGW441756 on vorinostat andNGFmediated ERK phosphorylation. A)NS-1 cellswere treatedwith vorinostat (1 and 2.5 μM) andNGF (2.5 ng/mL)with and without GW441756 (1 μM) for 3 h. The blots were probed with anti-pERK.1/2 antibody. Vorinostat mediated activation of ERK1/2 phosphorylation (pErk) was abolished in presence of GW441756. Total ERK levels were checked using ERK 1/2 antibody. B) Bar graph represents the densitometric analysis of immunoblots. X axis represents treatments and Y axis represents the ratio of absolute relative density of pERK to the total ERK. The data sets are the mean ± SE of two biological replicates from two independent experiments (values compared to control vs vorinostat 1 μM and 2.5 μM, vorinostat 1 μM and 2.5 μM Vs GW441756 + vorinostat 1 and 2.5 μM respectively). *P < 0.05, **P < 0.001, ***P < 0.0001 indicate significant differences and ns indicates non-significant difference.

    Mol Cell Neurosci, 2016, 77:11-20.. GW441756 purchased from Selleck.

  • Neurite extension of PC12 cells was visualized by immunostaining (×200 magnification; scale bar, 50 µm) with anti-neurofilament H antibody (red) and nuclei were stained with DAPI (blue). SCDC2 cells (2×104 cells) and rat pheochromocytoma cells PC12 (1×104 cells) were co-cultured and treated with or without TGF-β1 (10 ng/ml) for 4 days. Cells were also treated with TGF-β type I receptor inhibitor SB-431542 (10 µM), TrkA inhibitor GW441756 (2 nM), IL-1β (10 ng/ml), or TNF-α (10 ng/ml) from the beginning of the co-culture. In addition, ATPγS (100 µM) was added to all cultures during cell seeding. Dimethyl sulfoxide was added to cell cultures as a vehicle control for SB-431542 and GW441756, respectively.

    Int J Mol Med, 2018, 42(3):1484-1494. GW441756 purchased from Selleck.

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Choose Selective Trk receptor Inhibitors

Biological Activity

Description GW441756 is a potent, selective inhibitor of TrkA with IC50 of 2 nM, with very little activity to c-Raf1 and CDK2. GW441756 produces a relevant increase of caspase-3 that leads to apoptosis.
Targets
TrkA [1]
(Cell-free assay)
2 nM
In vitro

GW441756 can specifically block TrkA-induced cell death in a dose-dependent manner. GW441756 can block TrkA-mediated γH2AX production[2] and apoptosis in TrkA-overexpressing cells. [3]

Protocol

Solubility (25°C)

In vitro DMSO 25 mg/mL (90.81 mM)
Water Insoluble
Ethanol 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.

Chemical Information

Molecular Weight 275.3
Formula

C17H13N3O

CAS No. 504433-23-2
Storage powder
in solvent
Synonyms N/A
Smiles CN1C=C(C2=CC=CC=C21)C=C3C4=C(C=CC=N4)NC3=O

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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.

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Trk receptor Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID