SPACE peptide
Based on 3 publication(s) in Google Scholar
SPACE peptide is a skin penetrating peptide (SPPs). SPACE peptide can enhance topical delivery of a macromolecule, hyaluronic acid.
For research use only. We do not sell to patients.
- Purity: 99.37%
- CAS No.: 1621717-95-0
- Formula: C40H63N15O17S2
- Molecular Weight:1090.15
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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)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocol
- Purity & Documentation
- References
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Help & FAQs
Publications Citing Use of MedChemExpress (MCE) SPACE peptide
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Biological Activity
SPACE peptide, when conjugates to cargoes such as small molecules and proteins, is able to facilitate their penetration across the stratum corneum into epidermis and dermis[2].
SPACE peptide also exhibits increased penetration into various cells including keratinocytes, fibroblasts, and endothelial cells, likely through a macropinocytosis pathway[2].
SPACE peptide enhances Cyclosporine A skin penetration, via a transcellular pathway, enhancing its partitioning into keratin-rich corneocytes through concurrent binding of SPACE with keratin and Cyclosporine A[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1621717-95-0
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Appearance Solid
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Molecular Weight 1090.15
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Formula C40H63N15O17S2
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Color White to off-white
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Sequence
Ala-Cys-Thr-Gly-Ser-Thr-Gln-His-Gln-Cys-Gly (Disulfide bridge: Cys2-Cys10)
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Sequence Shortening
ACTGSTQHQCG (Disulfide bridge: Cys2-Cys10)
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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)
Publications (3)
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Journal Impact Factor
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Most Recent
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J Nat Med
Identification of pheophorbide a as an inhibitor of receptor for advanced glycation end products in Mallotus japonicus. [Abstract]2021 Jun;75(3):675-681. PMID: 33625682 -
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Solvent & Solubility
DMSO : 100 mg/mL (91.73 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
H2O : 50 mg/mL (45.87 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)
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: ≥ 2.5 mg/mL (2.29 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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: ≥ 2.5 mg/mL (2.29 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
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: PBS
Solubility: 100 mg/mL (91.73 mM); Clear solution; Need ultrasonic
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.
Protocol
The cytotoxicity of SPACE peptide is assessed using the MTT Cell Proliferation Assay. HEKa cells are seeded in 96-well microplates at a density of 5000 cells/well. Cultures are allowed to grow until they reaches ~80% confluency. Cells are then incubated with 150 μL of 10, 5, 2.5, or 1.25 mg/mL SPACE peptide in media. Media only is used as a negative control, and media without cells is used to subtract background. Cytotoxicity is assessed for 1, 4, and 12 h incubation periods[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Mice: Female BALB/c mice (knockdown of GAPDH protein) are anesthetized using isoflurane inhalation (2-3%), the back skin of animals is shaved, and a cylinder with an exposed skin area of 1.8 cm2 is attached to the back of mice. 200 μL of the SPACE peptide is topically applied in the attached cylinder, and is manually spread over the entire exposure area. Applied test solutions are allowed to incubate with the exposed skin for 6 hours while keeping animals under minimal anesthesia. After 6 hours, the cylinder is carefully removed, and the entire exposure area is covered with sterile gauze and a breathable bandage. After 72 hrs, animals are sacrificed and skin biopsies (5 mm diameter) are collected from treated area of the animal’s skin. Total protein concentration in the skin biopsy tissue is determined[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (286 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]. Chen M, et al. Topical delivery of hyaluronic acid into skin using SPACE-peptide carriers. J Control Release. 2014 Jan 10;173:67-74. [Content Brief]
[2]. Hsu T, et al. Delivery of siRNA and other macromolecules into skin and cells using a peptide enhancer. Proc Natl Acad Sci U S A. 2011 Sep 20;108(38):15816-21. [Content Brief]
[3]. Kumar S, et al. Peptides as skin penetration enhancers: mechanisms of action. J Control Release. 2015 Feb 10;199:168-78. [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 | 0.9173 mL | 4.5865 mL | 9.1730 mL | 22.9326 mL |
| 5 mM | 0.1835 mL | 0.9173 mL | 1.8346 mL | 4.5865 mL | |
| 10 mM | 0.0917 mL | 0.4587 mL | 0.9173 mL | 2.2933 mL | |
| 15 mM | 0.0612 mL | 0.3058 mL | 0.6115 mL | 1.5288 mL | |
| 20 mM | 0.0459 mL | 0.2293 mL | 0.4587 mL | 1.1466 mL | |
| 25 mM | 0.0367 mL | 0.1835 mL | 0.3669 mL | 0.9173 mL | |
| 30 mM | 0.0306 mL | 0.1529 mL | 0.3058 mL | 0.7644 mL | |
| 40 mM | 0.0229 mL | 0.1147 mL | 0.2293 mL | 0.5733 mL | |
| DMSO | 50 mM | 0.0183 mL | 0.0917 mL | 0.1835 mL | 0.4587 mL |
| 60 mM | 0.0153 mL | 0.0764 mL | 0.1529 mL | 0.3822 mL | |
| 80 mM | 0.0115 mL | 0.0573 mL | 0.1147 mL | 0.2867 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.
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