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24(S)-Hydroxycholesterol | Endogenous cholesterol metabolite

24S Hydroxycholesterol (474-73-7) is an important cholesterol metabolite (cholesterol 24-hydroxylase) found in the brain.1 It is an endogenous agonist of the nuclear receptor LXR.2 It has been shown to induce cell death in neuroblastoma cells3, possibly via a necroptosis pathway4. 24S Hydroxycholesterol has also been found to be a high affinity ligand for RORα and RORγ (Ki = 25 nM).5 24(S)-Hydroxycholesterol levels are elevated in the cerebral spinal fluids of patients with neurogenerative diseases suggesting possible clinical applications.6,7 It was also able to reduce Aβ production and increase ER-resident immature amyloid precursor protein (APP) levels in human neuroblastoma SH-Sy5Y cells and CHO cells via inhibition of intracellular amyloid precursor protein trafficking.7

References/Citations - 24s hydroxycholesterol
1) Lujohann et al. (1996), Cholesterol homeostasis in human brain: evidence for an age-dependent flux of 24S-hydroxycholesterol from the brain into circulation; Proc. Natl. Acad. Sci. USA, 93 9799
2) Chawla et al. (2001), Nuclear receptors and lipid physiology:opening the X-files; Science, 294 1866
3) Kolsch et al. (1999), The neurotoxic effect of 24-hydroxycholesterol on SH-SY5Y human neuroblastoma cells; Brain Res., 818 171
4) Yamanaka et al. (2011), 24(S)-hydroxycholesterol induces neuronal cell death through necroptosis, a form of programmed necrosis; J. Biol. Chem., 286 24666
5) Wang et al. (2010), A second class of nuclear receptors for oxysterols: regulation of RORalpha and RORgamma activity by 24(S)-hydroxycholesteraol (cerebrosterol); Biochim. Biophys. Acta, 1801 917
6) Leoni and Caccia (2013), Potential diagnostic applications of side chain oxysterols analysis inplasma and cerebrospinal fluid; Biochem. Pharmacol., 86 26
7) Urano et al. (2013), Suppression of amyloid-β production by 24S-hydroxycholesterol via inhibition of intracellular amyloid precursor protein trafficking; FASEB J., Jul 9 Epub.

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Catalog#  10-1331

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Catalog Number:
Endogenous cholesterol metabolite
Molecular Weight:
Molecular Formula:
Soluble in DMSO (up to 10 mg/ml) or in Ethanol (up to 10 mg/ml).
Physical Properties:
White solid
99% by HPLC
NMR (Conforms)
Storage Temperature:
Stable for 2 years as supplied. Solutions in DMSO or ethanol may be stored at -20° for up to 2 months.
Shipping Code:
Materials provided by Focus Biomolecules are for laboratory research use only and are not intended for human or veterinary applications.

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