7α,25-dihydroxy Cholesterol (Synonyms: 7α,25-DHC) |
| カタログ番号GC14433 |
7α, 25-ジヒドロキシコレステロール (7α,25-OHC) は、オーファン GPCR 受容体 EBI2 (GPR183) の強力かつ選択的なアゴニストおよび内因性リガンドです。
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Cas No.: 64907-22-8
Sample solution is provided at 25 µL, 10mM.
7α,25-dihydroxy Cholesterol (7α,25-DHC, 7α,25-OHC) is a potent and selective GPR183 agonist [1].
Epstein-Barr virus (EBV)-induced gene 2 (EBI2, also known as GPR183) is an orphan G protein-coupled receptor that is highly expressed in spleen and up-regulated upon Epstein–Barr-virus infection. GPR183 is required for humoral immune responses and polymorphisms in the receptor is associated with inflammatory autoimmune diseases [1][2].
7α,25-dihydroxy Cholesterol is a potent and selective GPR183 (EBI2) agonist and most potent EBI2 ligand with EC50 and Kd values of 140 pM and 450 pM, respectively. In a competition binding study, 7α,25-OHC competed for binding with IC50 value of 242 pM. In EBI2-expressing cells, 7α,25-OHC dose-dependently inhibited forskolin-induced cAMP with IC50 value of 2 nM. 7α,25-OHC was probably the endogenous ligand for EBI2. In EBI2-expressing mouse B and T cells, 7α,25-dihydroxy Cholesterol stimulated cell migration with IC50 value of around 500 pM, but had no effect on EBI2-deficient cells [1].
In EBI2-deficient mice, unseparated splenocytes, B cells and T cells were completely unresponsive to 7α,25-OHC stimulation [1]. Mice deficient in Ch25h, a key enzyme for the generation of 7α, 25-OHC, failed to position activated B cells within the spleen to the outer follicle [2].
References:
[1]. Liu C, Yang XV, Wu J, et al. Oxysterols direct B-cell migration through EBI2. Nature. 2011 Jul 27;475(7357):519-23.
[2]. Hannedouche S, Zhang J, Yi T, et al. Oxysterols direct immune cell migration via EBI2. Nature. 2011 Jul 27;475(7357):524-7.
| Cas No. | 64907-22-8 | SDF | |
| 同義語 | 7α,25-DHC | ||
| Chemical Name | (3β,7α)-cholest-5-ene-3,7,25-triol | ||
| Canonical SMILES | O[C@@H]1C=C2C[C@@H](O)CC[C@]2(C)[C@]3([H])[C@]1([H])[C@@](CC[C@]4([H])[C@H](C)CCCC(C)(C)O)([H])[C@]4(C)CC3 | ||
| Formula | C27H46O3 | M.Wt | 418.7 |
| 溶解度 | ≤2mg/ml in ethanol;0.1mg/ml in DMSO;20mg/ml in dimethyl formamide | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.3883 mL | 11.9417 mL | 23.8834 mL |
| 5 mM | 0.4777 mL | 2.3883 mL | 4.7767 mL |
| 10 mM | 0.2388 mL | 1.1942 mL | 2.3883 mL |
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- Purity: ≥95.00%
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