Vandetanib Dihydrochloride (PTK787) is an orally VEGF receptors inhibitor that inhibits angiogenesis (IC50 = 37 nM and 77 nM for KDR and Flt-1 respectively). The vascular endothelial growth factor (VEGF) is a central mediator of tumor-induced angiogenesis. Vandetanib (PTK787) was hypothesized that dual inhibition of VEGF signaling by inhibition of VEGF production and VEGF receptor signaling leads to synergistic anti-tumor effects. Effects of vatalanib and everolimus on cell proliferation, cell cycle, apoptosis and signal transduction were examined in three gastric cancer cell lines in vitro. Vatalanib abolished endothelial cell tube formation, whereas inhibition of tube formation by everolimus was incomplete. In vivo, the combination of vatalanib with everolimus was superior to single agent treatments and reduced tumor size by about 50% relative to everolimus monotherapy (p < 0.005). Furthermore, Vatalanib dihydrochloride shows significant inhibition of hepatocellular carcinoma cells growth and enhances the IFN/5-FU induced apoptosis by increasing proteins levels of Bax and reduced Bcl-xL and Bcl-2.
J Ethnopharmacol. 2023 Apr 20;116397.
Qilong capsule alleviates ponatinib-induced ischemic stroke in a zebrafish model by regulating coagulation, inflammation and apoptosis
Vatalanib dihydrochloride purchased from AbMole
Molecules. 2022 Jun 24;27(13):4075.
Investigation Driven by Network Pharmacology on Potential Components and Mechanism of DGS, a Natural Vasoprotective Combination, for the Phytotherapy of
Vatalanib dihydrochloride purchased from AbMole
JCI Insight. 2019 Jul 23;5(16):e128336.
Induction of cardiomyocyte proliferation and angiogenesis protects neonatal mice from pressure overload-associated maladaptation
Vatalanib dihydrochloride purchased from AbMole
| Cell Experiment | |
|---|---|
| Cell lines | HUVECs |
| Preparation method | Endothelial Cell Proliferation Assays. As a test of the ability of PTK787/ZK 222584 to inhibit a functional response to VEGF, an endothelial cell proliferation assay, based on BrdUrd incorporation was used (Biotrak Cell Proliferation System V.2, Amersham, England). Subconfluent HUVECs were seeded at a density of 5 3 103 cells/well into 96-well plates coated with 1.5% gelatin and then incubated at 37°C and 5% CO2 in growth medium. After 24 h, growth medium was replaced by basal medium containing 1.5% FCS and a constant concentration of VEGF (50 ng/ml), bFGF (0.5 ng/ml), or FCS (5%), in the presence or absence of PTK787/ZK 222584. As a control, wells without growth factor were also included. After 24 h of incubation, BrdUrd labeling solution was added, and cells incubated an additional 24 h before fixation, blocking, and addition of peroxidase-labeled anti-BrdUrd antibody. Bound antibody was then detected using 3,395,59-tetramethylbenzidine substrate, which results in a colored reaction product that is quantified spectrophotometrically at 450 nm. |
| Concentrations | 0~1 μM |
| Incubation time | 24 h |
| Animal Experiment | |
|---|---|
| Animal models | Nude Mouse Human Tumor Xenograft Model |
| Formulation | distilled water |
| Dosages | 25 to 100 mg/kg once or twice dail |
| Administration | p.o. |
| Molecular Weight | 419.73 |
| Formula | C20H15ClN4.2HCl |
| CAS Number | 212141-51-0 |
| Solubility (25°C) | DMSO 34 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
| Related VEGFR/PDGFR Products |
|---|
| Isolinderalactone
Isolinderalactone suppresses human glioblastoma growth and angiogenic activity through the inhibition of VEGFR2 activation in endothelial cells. Isolinderalactone suppressed the expression of B-cell lymphoma 2 (BCL-2), as well as of survivin and X-linked inhibitor of apoptosis protein (XIAP). |
| Oglufanide
Oglufanide (H-Glu-Trp-OH) is a dipeptide immunomodulator isolated from calf thymus. |
| KLTWQELYQLKYKGI
KLTWQELYQLKYKGI (QK) is a VEGF mimicking peptide, binds to the VEGF receptors and competes with VEGF. |
| Protein LMWP
Protein LMWP is a cell-penetrating peptide with vascular endothelial growth factor (VEGF) inhibitory activity. |
| CBO-P11
CBO-P11 specifically binds to receptor of VEGFR-2 and is used as targeting ligand for tumor angiogenesis. |
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