Spantide I
Based on 1 Customer Validation
Spantide I, a substance P analog, is a selective NK1 receptor antagonist, with Ki values of 230 nM and 8150 nM for NK1 and NK2 receptor, respectively. Spantide I provides an approach to reduce type 1 and enhance the type 2 cytokine IL-10 in the infected cornea, leading to a significant reduction in corneal perforation.
For research use only. We do not sell to patients.
- Purity: 99.64%
- CAS No.: 91224-37-2
- Formula: C75H108N20O13
- Molecular Weight:1497.79
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Storage:
Sealed storage, away from moisture.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
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
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NK1R 230 nM (Ki) |
NK2R 8150 nM (Ki) |
Spantide I (36 μg/mouse, ip daily) significantly decreases the number of perforated corneas, bacterial counts, and PMNs. Spantide I also downregulates the mRNA levels for type I cytokines (e.g., IFN-γ) as well as MIP-2, IL-6, TNF-α, and IL-1β[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Female, 8-week-old C57BL/6 (B6) and BALB/c mice[3].
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Dosage:36 μg/mouse.
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Administration:IP on days -1 and 0 (day of infection) and daily through 5 days pi (post infection).
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Result:At 3 and 5 days pi, compound-treated mice had significantly less severe ocular disease than did the PBS-treated mice.
Contained significantly fewer PMNs than the corneas of PBS-treated mice at 3 and 5 days pi.
Significantly reduced levels of corneal TNF-α mRNA at 3 and 5 days pi.
Significantly reduced the level of IL-18 mRNA at 1 day pi.
Chemical Information
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CAS No. 91224-37-2
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Appearance Solid
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Molecular Weight 1497.79
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Formula C75H108N20O13
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Color White to off-white
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Sequence Shortening
{D-Arg}-PKPQQ-{D-Trp}-F-{D-Trp}-LL-NH2
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Sealed storage, away from moisture
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Solvent & Solubility
H2O : 100 mg/mL (66.77 mM; Need ultrasonic)
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)
Purity & Documentation
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Data Sheet (279 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
References
[1]. J C Beaujouan, et al. Higher potency of RP 67580, in the mouse and the rat compared with other nonpeptide and peptide tachykinin NK1 antagonists. Br J Pharmacol. 1993 Mar;108(3):793-800. [Content Brief]
[2]. M Zubrzycka, et al. Comparison of antagonistic properties of substance P analogs, spantide I, II and III, on evoked tongue jerks in rats. Endocr Regul. 2000 Mar;34(1):13-8. [Content Brief]
[3]. Linda D Hazlett, et al. Spantide I decreases type I cytokines, enhances IL-10, and reduces corneal perforation in susceptible mice after Pseudomonas aeruginosa infection. Invest Ophthalmol Vis Sci. 2007 Feb;48(2):797-807. [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 | 1 mM | 0.6677 mL | 3.3383 mL | 6.6765 mL | 16.6913 mL |
| 5 mM | 0.1335 mL | 0.6677 mL | 1.3353 mL | 3.3383 mL | |
| 10 mM | 0.0668 mL | 0.3338 mL | 0.6677 mL | 1.6691 mL | |
| 15 mM | 0.0445 mL | 0.2226 mL | 0.4451 mL | 1.1128 mL | |
| 20 mM | 0.0334 mL | 0.1669 mL | 0.3338 mL | 0.8346 mL | |
| 25 mM | 0.0267 mL | 0.1335 mL | 0.2671 mL | 0.6677 mL | |
| 30 mM | 0.0223 mL | 0.1113 mL | 0.2226 mL | 0.5564 mL | |
| 40 mM | 0.0167 mL | 0.0835 mL | 0.1669 mL | 0.4173 mL | |
| 50 mM | 0.0134 mL | 0.0668 mL | 0.1335 mL | 0.3338 mL | |
| 60 mM | 0.0111 mL | 0.0556 mL | 0.1113 mL | 0.2782 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.
Spantide I Related Classifications
HY-P1194 Related Classifications
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