| 7α,25-dihydroxy CholesterolGPR183 agonist |
Sample solution is provided at 25 µL, 10mM.
Nature.2017 Jan 19;541(7637):417-420.
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Chemical structure
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| Cas No. | 64907-22-8 | SDF | Download SDF |
| Synonyms | 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 |
| Solubility | ≤2mg/ml in ethanol;0.1mg/ml in DMSO;20mg/ml in dimethyl formamide | Storage | Store at -20°C |
| Physical Appearance | A crystalline solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
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.
