Poloxamer 188
Based on 1 Customer Validation
Poloxamer 188 is a nonionic linear copolymer with surfactant properties. Poloxamer 188 exhibits anti-thrombotic, anti-inflammatory, and cytoprotective activities in various tissue injury models. Poloxamer 188 can be used for drug delivery.
商品は「研究用試薬」です。人や動物の医療用・臨床診断用・食品用の製品ではありません。
研究用途以外に使用した場合、当社は一切の責任を負いかねます。
- CAS 番号: 9003-11-6
- 分子量:8800(Average)
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保管条件:
Please store the product under the recommended conditions in the Certificate of Analysis.
生物活性
製品説明
体外実験
Poloxamer 188 (10-1000 μM, 5 h) has a protective effect on cerebral microvascular endothelial cells (MBEC) in mice[2].
Docetaxel-loaded PLGA/poloxamer 188 nanoparticles leads to an increased level of drug uptake and cytotoxicity in the docetaxel-resistant MCF-7 TAX30 human breast cancer cells against Docetaxel-loaded PLGA nanoparticles[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
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Cell Line:MBEC
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Concentration:10, 100, 1000 μM
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Incubation Time:5 h
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Result:Increased the cell number of hypoxic cells at high concentrations.
体内実験
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:TourniquetInduced Ischemia-Reperfusion Injury in Rats[3]
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Dosage:150 mg/kg
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Administration:i.v
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Result:Reduced the elevated TBARS but not to control levels and SOD activity was at control levels.
臨床実験
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
化学情報
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CAS 番号 9003-11-6
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性状 Solid
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分子量 8800(Average)
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Color White to yellow
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SMILES
CC.[H(OCH2CH2)x(OCH2CH)y(OCH2CH2)zOH].[CH3]
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別名
PEG-PPG-PEG, 8800 (Average Mn)
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輸送条件
Room temperature in continental US; may vary elsewhere.
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保管条件
Please store the product under the recommended conditions in the Certificate of Analysis.
溶剤 & 溶解度
体外:
DMSO : ≥ 100 mg/mL
H2O : ≥ 100 mg/mL
* "≥" means soluble, but saturation unknown.
体内:
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.
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: 25 mg/mL; Clear solution; Need ultrasonic
In Vivo Dissolution Calculator
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.
プロトコル
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Research Protocol for Inflammation-related Diseases
The NLRP3 inflammasome is a cytosolic innate immune signaling platform that integrates priming signals and danger-signal activation to promote caspase-1 activation, maturation of IL-1β and IL-18, and gasdermin D-mediated pyroptotic cell death. The core experimental logic is to determine whether inflammatory disease phenotypes are driven by increased NLRP3 expression, ASC-containing inflammasome assembly, caspase-1 cleavage, GSDMD cleavage, and extracellular release of IL-1β/IL-18 rather than by nonspecific cell injury alone. The pathway is strongly linked to inflammation-related disease phenotypes because monosodium urate crystals activate NALP3/NLRP3 inflammasome signaling in gout-like crystal inflammation, cholesterol crystals activate NLRP3 inflammasomes in atherogenesis models, and DSS-induced intestinal inflammation has been reported to involve NLRP3 inflammasome activity. However, experimental colitis studies also show context-dependent protective effects of NLRP3 inflammasome co
純度とドキュメンテーション
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データシート (270 KB)
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SDS (252 KB)
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- Portuguese - PT (252 KB)
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取扱説明書 (2659 KB)
参考文献
[1]. Guoyuan Li, et al. Enhanced Oral Bioavailability of Magnolol via Mixed Micelles and Nanosuspensions Based on Soluplus ®-Poloxamer 188. Drug Deliv. 2020 Dec;27(1):1010-1017. [Content Brief]
[2]. Lotze FP, et al. Poloxamer 188 Exerts Direct Protective Effects on Mouse Brain Microvascular Endothelial Cells in an In Vitro Traumatic Brain Injury Model. Biomedicines. 2021 Aug 19;9(8):1043. [Content Brief]
[3]. Walters TJ, et al. Poloxamer-188 reduces muscular edema after tourniquet-induced ischemia-reperfusion injury in rats. J Trauma. 2011 May;70(5):1192-7. [Content Brief]
[4]. Yan F, et al. The effect of poloxamer 188 on nanoparticle morphology, size, cancer cell uptake, and cytotoxicity. Nanomedicine. 2010 Feb;6(1):170-8. [Content Brief]
Calculators
濃度 (開始) × 体積 (開始) = 濃度 (終了) × 体積 (終了)