PD 168368
Based on 1 Customer Validation
PD 168368 is a potent, competitive, and selective neuromedin B receptor (NMB-R) antagonist with the Ki of 15–45 nM. PD 168368 is neuromedin B receptor (NMBR; IC50=96 nM) / gastrin-releasing peptide receptor (GRPR IC50=3500 nM) antagonist. PD 168368 also is a mixed FPR1/FPR2/FPR3 agonist with EC50s of 0.57, 0.24, and 2.7 nM, respectively.
For research use only. We do not sell to patients.
- Purity: 98.11%
- CAS No.: 204066-82-0
- Formula: C31H34N6O4
- Molecular Weight:554.64
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Storage:Powder -20°C, 3 years ; In solvent -80°C, 6 months , -20°C, 1 month
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Biological Activity
PD 168368 (PD168368) is highly active and stimulated [Ca2+]I release in human neutrophils with EC50 values in the nanomolar range[3].
PD 168368 (PD168368) suppresses migration and invasion of the human breast cancer cell line MDA-MB-231. PD 168368 reduces epithelial-mesenchymal transition (EMT) of breast cancer cells by E-cadherin upregulation and vimentin downregulation. PD 168368 (5 μM) inhibits migration and invasiveness in breast cancer cells[4].
PD 168368 (10 μM) suppresses the activation of mTOR/p70S6K/4EBP1 and AKT/GSK-3β pathways in breast cancer cells[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:Human breast cancer cell line MDA-MB-231
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Concentration:5 μM
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Incubation Time:24 hours
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Result:Clearly decreased the migratory ability of MDA-MB-231 cells in a Boyden chamber migration assay.
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Cell Line:MDA-MB-231 cells
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Concentration:10 μM
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Incubation Time:0, 0.5, 1, 2, 4, 8, and 16 hours
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Result:Decreased phosphorylation levels of mTOR, p70S6K, 4EBP1, AKT and GSK-3β in a time-dependent manner.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Female BALB/c-nude mice (age 8-10 weeks) bearing MDA-MB-231 xenograft model[4]
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Dosage:1.2 mg/kg
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Administration:Intraperitoneal injection for 30 days
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Result:No metastatic tumor nodules were observed in lungs of PD 168368-treated mice compared to PEG-injected mice.
Chemical Information
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CAS No. 204066-82-0
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Appearance Solid
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Molecular Weight 554.64
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Formula C31H34N6O4
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Color White to off-white
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SMILES
O=C([C@](C)(CC1=CNC2=C1C=CC=C2)NC(NC3=CC=C(C=C3)[N+]([O-])=O)=O)NCC4(CCCCC4)C5=NC=CC=C5
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
DMSO : 125 mg/mL (225.37 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 1 mg/mL (1.80 mM); Clear solution
This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 1 mg/mL (1.80 mM); Clear solution
This protocol yields a clear solution of ≥ 1 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (10.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (282 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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Handling Instructions (2659 KB)
References
[1]. R R Ryan, et al. Comparative pharmacology of the nonpeptide neuromedin B receptor antagonist PD 168368. J Pharmacol Exp Ther. 1999 Sep;290(3):1202-11. [Content Brief]
[2]. K Tokita, et al. Tyrosine 220 in the 5th transmembrane domain of the neuromedin B receptor is critical for the high selectivity of the peptoid antagonist PD168368. J Biol Chem. 2001 Jan 5;276(1):495-504. [Content Brief]
[3]. Igor A Schepetkin, et al. Gastrin-releasing peptide/neuromedin B receptor antagonists PD176252, PD168368, and related analogs are potent agonists of human formyl-peptide receptors. Mol Pharmacol. 2011 Jan;79(1):77-90. [Content Brief]
[4]. Hyun-Joo Park, et al. Neuromedin B receptor antagonism inhibits migration, invasion, and epithelial-mesenchymal transition of breast cancer cells. Int J Oncol. 2016 Sep;49(3):934-42. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 1.8030 mL | 9.0149 mL | 18.0297 mL | 45.0743 mL |
| 5 mM | 0.3606 mL | 1.8030 mL | 3.6059 mL | 9.0149 mL | |
| 10 mM | 0.1803 mL | 0.9015 mL | 1.8030 mL | 4.5074 mL | |
| 15 mM | 0.1202 mL | 0.6010 mL | 1.2020 mL | 3.0050 mL | |
| 20 mM | 0.0901 mL | 0.4507 mL | 0.9015 mL | 2.2537 mL | |
| 25 mM | 0.0721 mL | 0.3606 mL | 0.7212 mL | 1.8030 mL | |
| 30 mM | 0.0601 mL | 0.3005 mL | 0.6010 mL | 1.5025 mL | |
| 40 mM | 0.0451 mL | 0.2254 mL | 0.4507 mL | 1.1269 mL | |
| 50 mM | 0.0361 mL | 0.1803 mL | 0.3606 mL | 0.9015 mL | |
| 60 mM | 0.0300 mL | 0.1502 mL | 0.3005 mL | 0.7512 mL | |
| 80 mM | 0.0225 mL | 0.1127 mL | 0.2254 mL | 0.5634 mL | |
| 100 mM | 0.0180 mL | 0.0901 mL | 0.1803 mL | 0.4507 mL |
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