A3022-25mg | Pazopanib (GW-786034) [444731-52-6] Clinisciences

Background

Pazopanib is a potent and selective second generation multi-targeted receptor tyrosine kinase inhibitor of vascular endothelial growth factor receptor (VEGFR), platelet-derived growth factor receptor (PDGFR) and c-kit tyrosine kinases. It is involved in inhibiting signaling pathways, angiogenesis, and cell proliferation. Pazopanib exhibited excellent anti-angiogenic and anti-tumor activity and synergism was observed in combination with chemotherapeutic drugs in several mouse models of a variety of tumors, accompanied by desirable pharmacokinetics and oral bioavailability. It inhibits the intracellular tyrosine kinase portion of all the VEGFR subtypes, and exhibits distinct pharmacokinetic and toxicity profiles compared with other agents among VEGF signaling pathway inhibitors. Recent studies elucidated its importance of signaling cascades related to angiogenesis in the management of RCC.

Reference

Sonpavde G, Hutson T E. Pazopanib: a novel multitargeted tyrosine kinase inhibitor. Current oncology reports. 2007; 9(2): 115 - 119.

Podar K, Tonon G, Sattler M, et al. The small-molecule VEGF receptor inhibitor pazopanib (GW786034B) targets both tumor and endothelial cells in multiple myeloma. Proceedings of the National Academy of Sciences. 2006; 103(51): 19478 - 19483.

Chemical Properties

Storage	Desiccate at -20°C
M.Wt	437.52
Cas No.	444731-52-6
Formula	C₂₁H₂₃N₇O₂S
Synonyms	Pazopanib, Votrient, GW786034B, GW 786034, GW-786034
Solubility	insoluble in EtOH; insoluble in H2O; ≥10.95 mg/mL in DMSO
Chemical Name	5-[[4-[(2,3-dimethylindazol-6-yl)-methylamino]pyrimidin-2-yl]amino]-2-methylbenzenesulfonamide;hydrochloride
SDF	Download SDF
Canonical SMILES	CC1=C(C=C(C=C1)NC2=NC=CC(=N2)N(C)C3=CC4=NN(C(=C4C=C3)C)C)S(=O)(=O)N.Cl
Shipping Condition	Small Molecules with Blue Ice, Modified Nucleotides with Dry Ice.
General tips	We do not recommend long-term storage for the solution, please use it up soon.

Protocol

Cell experiment: [1]
Cell lines	Primary human brain microvascular endothelial cells (HBMEC)
Preparation method	The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months.
Reaction Conditions	IC50: 2 μM, 48 hours
Applications	The IC50 for pazopanib for anchorage-dependent growth was 2 μM and 1 μM after 48 h and 72 h, respectively. Pazopanib abrogated the phosphorylation of VEGFR2 with disruption of downstream PLCγ1. It also disrupted the Ras-Raf-ERK pathway through decreased phosphorylated MEK1/2 and ERK1/2 and affected the phosphorylation of 70S6K. Our findings confirmed that pazopanib targeted endothelial cells, affecting cell growth, VEGFR-induced signaling, and tube formation.
Animal experiment: [2]
Animal models	Immune-deficient beige-nude-xid (BNX) mice injected with MM.1S cells
Dosage form	Oral administration, 30 mg/kg and 100 mg/kg, daily for five weeks
Applications	Tumor growth in treated mice was significantly delayed (30 mg/kg) or almost totally inhibited (100 mg/kg) compared with the control group. However, tumors rapidly regrew after cessation of treatment at day 30. Using Kaplan–Meier and log-rank analysis, the mean overall survival (OS) was 20 days in the control cohort versus 41 days and 51 days in groups treated with 30 mg/kg and 100 mg/kg pazopanib, respectively. Statistically significant prolongation in mean OS compared with control mice was observed in animals treated with 30 mg/kg and 100 mg/kg. Importantly, treatment with either the vehicle alone or pazopanib did not affect body weight.
Other notes	Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.
References: [1] Gril B, Palmieri D, Qian Y, et al. Pazopanib reveals a role for tumor cell B-Raf in the prevention of HER2+ breast cancer brain metastasis. Clinical Cancer Research, 2011, 17(1): 142-153. [2] Podar K, Tonon G, Sattler M, et al. The small-molecule VEGF receptor inhibitor pazopanib (GW786034B) targets both tumor and endothelial cells in multiple myeloma. Proceedings of the National Academy of Sciences, 2006, 103(51): 19478-19483.

Biological Activity

Description	Pazopanib is a novel multi-target inhibitor of VEGFR1, VEGFR2, VEGFR3, PDGFR, FGFR, c-Kit and c-Fms with IC50 of 10 nM, 30 nM, 47 nM, 84 nM, 74 nM, 140 nM and 146 nM, respectively.
Targets	VEGFR1	VEGFR2	VEGFR3	PDGFR	FGFR
IC50	10 nM	30 nM	47 nM	84 nM	74 nM

Quality Control

Purity = 98.81%

Chemical structure

Related Biological Data

Effect of oral administration of pazopanib hydrochloride vs vehicle on the development of choroidal neovascularization (CNV). Bars represent mean (SEM) area of CNV and show marked suppression of CNV in eyes of mice treated with pazopanib. *P<.001 by analysis of variance.

Pazopanib (GW-786034) [444731-52-6]

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Background

Chemical Properties

Protocol

Biological Activity

Quality Control

Chemical structure

Related Biological Data

Related Biological Data

Related Biological Data

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