Chloropyramine hydrochloride |
| Catalog No.GC32979 |
Chloropyramine hydrochloride is a histamine receptor H1 antagonist which can also inhibit the biochemical function of VEGFR-3 and FAK.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 6170-42-9
Sample solution is provided at 25 µL, 10mM.
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Chloropyramine hydrochloride is a histamine receptor H1 antagonist which can also inhibit the biochemical function of VEGFR-3 and FAK.
BT474 cells are highly sensitive to Chloropyramine hydrochloride (compound 1) treatment, whereby 1 µM concentrations cause a 40% reduction of viability after 48 h of treatment. It is found that at 1 µM concentrations of Chloropyramine hydrochloride, viability of control MCF7-pcDNA3 cells is significantly higher than the viability of MCF7-VEGFR-3 cells (P<0.01) and at 10 µM concentration this difference reaches twofold (P<0.001). In the BT474 cells treatment with Chloropyramine hydrochloride also leads to a concentration-dependent decrease of cell proliferation. When treatment with Chloropyramine hydrochloride is continued for 48 h, the breast cancer cells that overexpressed VEGFR-3 undergo apoptosis. This effect is dose-dependent, with 10 µM Chloropyramine hydrochloride inducing apoptosis in more than 60% of BT474 cells. In our model cell lines MCF7-pcDNA3 and MCF7-VEGFR-3, treatment with 10 µM Chloropyramine hydrochloride for 48 h leads to a 4-fold increase in apoptotic cell death in the cell line that overexpressed VEGFR-3 (18% versus 76 % respectively)[1].
Chloropyramine hydrochloride causes a dramatic reduction of tumor growth in both model systems whereby the tumor size in the treated groups is approximately 20% of the tumor size in vehicle control groups. Doxorubicin administered at 3 mg/kg causes approximately 60% reduction of tumor growth, but has no effect on tumor growth at 0, 3 mg/kg. In contrast, there is a modest effect of Chloropyramine hydrochloride alone (50% reduction of tumor growth). The low-dose combination of Chloropyramine hydrochloride and doxorubicin has a prolonged anti-tumor effect (85% reduction of tumor growth) that is greater than either drug alone[1].
[1]. Kurenova EV, et al. Small molecule chloropyramine hydrochloride (C4) targets the binding site of focal adhesion kinase and vascular endothelial growth factor receptor 3 and suppresses breast cancer growth in vivo. J Med Chem. 2009 Aug 13;52(15):4716-24.
Kinase experiment: | Cells are incubated in presence or absence of Chloropyramine hydrochloride and stained with anti-FAK antibody 4.47 or in combination with paxillin or VEGFR-3. Detection is done with Alexa Fluor 546 secondary antibody and for dual staining combination of Alexa Fluor 488 and Alexa Fluor 546 secondary antibody is used[1]. |
Cell experiment: | Cell survival is assayed in MTS assay by measuring mitochondrial dehydrogenase activity of metabolically active cells. 5.0×103 (100 µL) cells are plated in 96-well plates and are allowed to attach overnight. One hundred microliters of fresh media with or without Chloropyramine hydrochloride is added to each well. Cells are treated for designated amount of time. MTS assay is performed according the manufacturers protocol[1]. |
Animal experiment: | BT474 and MCF7-VEGFR-3 cells at a concentration of 2 to 5×106 cells per 200 µL are subcutaneously injected into the right flank of the 5 to 6 week old mice, 5 in each group. Treatment with Chloropyramine hydrochloride is started next day after cells injection via intraperitoneal injection (IP) once a day. Tumor size is measured thrice weekly and volume is calculated using the formula length×width2×0.5. Animals are sacrificed after 21 days of treatment or when tumor size reaches protocol end point. Tumor is excised, measured and preserved for protein and RNA preparation and cytochemistry[1]. |
References: [1]. Kurenova EV, et al. Small molecule chloropyramine hydrochloride (C4) targets the binding site of focal adhesion kinase and vascular endothelial growth factor receptor 3 and suppresses breast cancer growth in vivo. J Med Chem. 2009 Aug 13;52(15):4716-24. | |
| Cas No. | 6170-42-9 | SDF | |
| Canonical SMILES | CN(C)CCN(CC1=CC=C(Cl)C=C1)C2=NC=CC=C2.[H]Cl | ||
| Formula | C16H21Cl2N3 | M.Wt | 326.26 |
| Solubility | DMSO : 30 mg/mL (91.95 mM) | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 3.065 mL | 15.3252 mL | 30.6504 mL |
| 5 mM | 0.613 mL | 3.065 mL | 6.1301 mL |
| 10 mM | 0.3065 mL | 1.5325 mL | 3.065 mL |
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Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
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3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
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- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 13 reference(s) in Google Scholar.)
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