FK706
Based on 1 Customer Validation
FK706 is a potent, slow-binding and competitive inhibitor of human neutrophil elastase with an IC50 of 83 nM and a Ki of 4.2 nM. FK706 also inhibits mouse neutrophil elastase and porcine pancreatic elastase with IC50s of 22 nM and 100 nM, respectively, and has no inhibitory activity against other serine proteinases such as human pancreatic trypsin, human pancreatic α-chymotrypsin and human leukocyte cathepsin G. FK706 has anti-inflammatory effect.
For research use only. We do not sell to patients.
- Purity: 99.31%
- CAS No.: 144055-55-0
- Formula: C26H32F3N4NaO7
- Molecular Weight:592.54
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Storage:
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Biological Activity
IC50: 83 nM (Human neutrophil elastase), 22 nM (Mouse neutrophil elastase) and 100 nM (Porcine pancreatic elastase)[1];
Ki: 4.2 nM (Human neutrophil elastase)[1]
FK706 effectively inhibits the hydrolysis of bovine neck ligament elastin (2 mg/mL final concentration) by human neutrophil elastase (4 μg/mL final concentration) with an IC50 value of 230 nM[1].
FK706 blocks the release of inflammatory chemokines, suppresses the expression of IL-8 and MCP-1 mRNA, and suppresses NF-κB activation. It seems possible that FK706 may directly blocks human lung fibroblasts activation of NF-κB, preventing expression of inflammatory chemokines during cigarette smoke–induced lung inflammation[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male C57BL mice (6 weeks old) injected with human neutrophil elastase[1]
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Dosage:10 mg/kg, 32 mg/kg, 100 mg/kg
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Administration:Subcutaneous injection; for 1 hour, 2 hours, 4 hours, 6 hours
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Result:Significantly suppressed human neutrophil elastase-induced paw edema in mice in a dose-dependent manner.
Chemical Information
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CAS No. 144055-55-0
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Appearance Solid
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Molecular Weight 592.54
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Formula C26H32F3N4NaO7
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Color White to off-white
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SMILES
O=C(NC(C(C)C)C(C(F)(F)F)=O)[C@H]1N(C([C@H](C(C)C)NC(C2=CC=C(C(NCC(O[Na])=O)=O)C=C2)=O)=O)CCC1
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
DMSO : 115 mg/mL (194.08 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : ≥ 100 mg/mL (168.76 mM)
* "≥" means soluble, but saturation unknown.
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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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 (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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: ≥ 5 mg/mL (8.44 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 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: ≥ 5 mg/mL (8.44 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 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.
Working solution concentration: 0.22 mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
Purity & Documentation
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Data Sheet (282 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Shinguh Y, et al. Biochemical and pharmacological characterization of FK706, a novel elastase inhibitor. Eur J Pharmacol. 1997 Oct 15;337(1):63-71. [Content Brief]
[2]. Numanami H, et al. Serine protease inhibitors modulate smoke-induced chemokine release from human lung fibroblasts. Am J Respir Cell Mol Biol. 2003 Nov;29(5):613-9. [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 (sealed storage, away from moisture). 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 |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 1.6876 mL | 8.4382 mL | 16.8765 mL | 42.1912 mL |
| 5 mM | 0.3375 mL | 1.6876 mL | 3.3753 mL | 8.4382 mL | |
| 10 mM | 0.1688 mL | 0.8438 mL | 1.6876 mL | 4.2191 mL | |
| 15 mM | 0.1125 mL | 0.5625 mL | 1.1251 mL | 2.8127 mL | |
| 20 mM | 0.0844 mL | 0.4219 mL | 0.8438 mL | 2.1096 mL | |
| 25 mM | 0.0675 mL | 0.3375 mL | 0.6751 mL | 1.6876 mL | |
| 30 mM | 0.0563 mL | 0.2813 mL | 0.5625 mL | 1.4064 mL | |
| 40 mM | 0.0422 mL | 0.2110 mL | 0.4219 mL | 1.0548 mL | |
| 50 mM | 0.0338 mL | 0.1688 mL | 0.3375 mL | 0.8438 mL | |
| 60 mM | 0.0281 mL | 0.1406 mL | 0.2813 mL | 0.7032 mL | |
| 80 mM | 0.0211 mL | 0.1055 mL | 0.2110 mL | 0.5274 mL | |
| 100 mM | 0.0169 mL | 0.0844 mL | 0.1688 mL | 0.4219 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.