24(S)-hydroxy Cholesterol (Synonyms: Cerebrosterol) |
| Catalog No.GC18076 |
LXRα and LXRβ nuclear receptors activator
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 474-73-7
Sample solution is provided at 25 µL, 10mM.
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24S-hydroxycholesterol (24S-OH-Chol) is an enzymatically oxidized product of cholesterol mainly synthesized in the brain, involved in the pathogenesis of Alzheimer disease (AD) [1].
24(S)-hydroxy Cholesterol has been generated by the action of enzyme cholesterol 24(S)-hydroxylase (CYP46) on cholesterol in the brain. 24(S)-hydroxy Cholesterol can diffuse across the blood-brain barrier to the systemic circulation where it modulates cell signaling, which could be used for further sterol biosynthesis, or be metabolized in the liver. In brain, disturbances of cholesterol homeostasis have been associated with severe neurological diseases and play a dominant role in the development of Alzheimer disease (AD).
In AD patients, the levels of 24(S)-hydroxycholesterol have been increased in cerebrospinal fluid [1]. 24(S)-hydroxycholesterol is able to induce the expression of ABCA1, ABCG1, and apoE in astrocytes and to elevate apoE-mediated cholesterol efflux in astrocytoma but not in neuroblastoma cells [1]. The concentration of 24(S)-hydroxycholesterol in AD and non-Alzheimer demented patients was modestly but significantly higher than in healthy volunteers and in depressed patients. Plasma 24(S)-hydroxycholesterol levels negatively correlated with the severity of dementia. 24(S)-hydroxycholesterol plasma levels may potentially be used as an early biochemical marker for an altered cholesterol homeostasis in the central nervous system [2]. 24(S)-hydroxycholesterol is a natural ligand of the liver X receptors (LXR), central players in the regulation of cholesterol metabolism. 24(S)-hydroxycholesterol potently activated LXRα and LXRβ nuclear receptors with the EC50 values of 4 and 3 μM, respectively, causing upregulation of cholesterol-lowering genes.
References:
[1] Abildayeva K, Jansen P J, Hirsch-Reinshagen V, et al. 24 (S)-hydroxycholesterol participates in a liver X receptor-controlled pathway in astrocytes that regulates apolipoprotein E-mediated cholesterol efflux[J]. Journal of Biological Chemistry, 2006, 281(18): 12799-12808.
[2] Lütjohann D, Papassotiropoulos A, Bjrkhem I, et al. Plasma 24S-hydroxycholesterol (cerebrosterol) is increased in Alzheimer and vascular demented patients[J]. Journal of Lipid Research, 2000, 41(2): 195-198.
[3] Janowski, B. A.,Grogan, M.J.,Jones, S.A., et al. Structural requirements of ligands for the oxysterol liver X receptors LXRα and LXRβ. Proceedings of the National Academy of Sciences of the United States of America 96(1), 266-271 (1999).
| Cas No. | 474-73-7 | SDF | |
| Synonyms | Cerebrosterol | ||
| Chemical Name | cholest-5-ene-3β,24S-diol | ||
| Canonical SMILES | O[C@@H]1CC2=CC[C@]3([H])[C@@](CC[C@]4([C@@]3([H])CC[C@]4([H])[C@@H](CC[C@H](O)C(C)C)C)C)([H])[C@](C)2CC1 | ||
| Formula | C27H46O2 | M.Wt | 402.7 |
| Solubility | ≤20mg/ml in ethanol; 100μg/ml in DMSO; 2mg/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 | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 2.4832 mL | 12.4162 mL | 24.8324 mL |
| 5 mM | 0.4966 mL | 2.4832 mL | 4.9665 mL |
| 10 mM | 0.2483 mL | 1.2416 mL | 2.4832 mL |
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
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- Purity: >95.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 22 reference(s) in Google Scholar.)
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