IL4RPep-1 acetate
Based on 1 publication(s) in Google Scholar
IL4RPep-1 acetate is an interleukin-4 receptor (IL-4R) binding agent. IL4RPep-1 acetate preferentially binds to cells with high levels of IL-4R expression compared to those with low levels of expression. IL4RPep-1 acetate-labeled liposomes containing Doxorubicin (HY-15142A) are internalized by cells more efficiently. IL4RPep-1 acetate-labeled liposomes accumulate more effectively within H226 tumors.
For research use only. We do not sell to patients.
- Purity: 98.61%
- Formula: C44H80N20O13S2·xC2H4O2
- Molecular Weight:1161.36 (free base)
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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 Citing Use of MedChemExpress (MCE) IL4RPep-1 acetate
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Biological Activity
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IL-4Rα/IL4R/CD124 |
IL4RPep-1 (biotin-labeled IL4RPep-1; 1-80 μM; 1 h) acetate binds to H226 squamous cell lung cancer cells with high IL-4R expression, with a dissociation constant Kd of 6.5 μM, and its binding affinity is significantly higher than that to H460 large cell lung cancer cells with low IL-4R expression (Kd = 51.9 μM)[1].
IL4RPep-1 (100 μg IL4RPep-1; 0-24 h) acetate remains stable in mouse serum at 37 °C for at least 4 h, and most of the peptide stays intact even after 24 h of incubation[1].
IL4RPep-1 (10 μM; 1 h) acetate preferentially binds to TNF-α-activated HUVEC with upregulated IL-4R expression, compared with untreated human umbilical vein endothelial cells (HUVEC)[1].
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.
Chemical Information
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Appearance Solid
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Molecular Weight 1161.36 (free base)
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Formula C44H80N20O13S2·xC2H4O2
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Color White to off-white
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Sequence
Cys-Arg-Lys-Arg-Leu-Asp-Arg-Asn-Cys (Disulfide bridge: Cys1-Cys9)
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Sequence Shortening
CRKRLDRNC (Disulfide bridge: Cys1-Cys9)
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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 (1)
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Journal Impact Factor
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Most Recent
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J Control Release
Nanoprodrug targeting tumor-associated intracellular bacteria enhances colorectal cancer immunotherapy. [Abstract]2025 Dec 6:390:114512. PMID: 41360332
Solvent & Solubility
DMSO : 25 mg/mL (Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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; 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; 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.
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. * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
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
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)