| Version |
2.5 |
| Creation Date |
2006-05-22 15:17:36 |
| Update Date |
2009-05-05 20:59:05 |
| Accession Number |
HMDB02103 |
| Secondary Accession Numbers |
Not Available |
| Common Name |
27-Hydroxycholesterol |
| Description |
27-hydroxycholesterol is an oxygenated derivative of cholesterol and a major oxysterol in circulation. 27-hydroxycholesterol is the product of the enzyme sterol 27-hydroxylase. The enzyme is critical for degradation of the steroid side-chain and a genetic deficiency of the enzyme leads to reduced formation of bile acids in humans. There is a correlation between 27-hydroxycholesterol and cholesterol in the circulation, and females have lower levels of 27-hydroxycholesterol than males. A strong correlation is observed between circulating levels of 27-hydroxycholesterol and cholesterol, in both healthy subjects and subjects with hypercholesterolemia and documented atherosclerosis. 27-hydroxycholesterol is metabolized by an oxysterol 7a-hydroxylase in the liver, and changes in the activity of this enzyme may lead to accumulation of 27-hydroxycholesterol in the circulation. It has been reported that patients with a genetic deficiency of oxysterol 7a-hydroxylase in the liver had markedly increased levels of 27-hydroxycholesterol in the circulation. Under normal conditions, however, and in the absence of liver or kidney disease, changes in the levels of 27-hydroxycholesterol in the circulation are likely to be caused by changes in the rate of synthesis of these steroids rather than by the rate of metabolism. Three possible explanations for the high concentrations of 27-hydroxycholesterol found in the circulation of the three subjects with atherosclerosis could be: 1) Increased expression of sterol 27-hydroxylase owing to a genetic factor or some other factor completely unrelated to atherosclerosis. 2) The extrahepatic sterol 27-hydroxylase may be up-regulated by circulating factors (e.g. cytokines) that are directly or indirectly related to the development of atherosclerosis. 3) The high amounts of cholesterol accumulating in macrophages in some patients with atherosclerosis may result in increased flux of 27-hydroxycholesterol from the macrophages to the circulation.
Since there is a close relation between levels of cholesterol and 27-hydroxycholesterol in the circulation, the possibility must be considered that the flux of 27-hydroxycholesterol into the brain may be part of the yet unexplained link between hypercholesterolemia and Alzheimer's disease.
27-hydroxysterol is the most dominant oxysterol in human ateromas where it may reflect a mechanism for eliminating excessive cholesterol and thus have a protective role.
Hypercholesterolemia and chronic low-grade immunological activation are pivotal in the development of atherosclerosis. However, the interconnections between these two factors are not well known. The CD40 system, as measured by the plasma level of soluble CD40 (sCD40), is associated with cholesterol metabolism in hypercholesterolemic patients. When combined, a decreased cholesterol synthesis rate and increased levels of 27-hydroxycholesterol may be a consequence of high levels of cellular cholesterol and, therefore, be related to sCD40. However, sCD40 had no significant correlation with total plasma cholesterol. This suggests that the cellular cholesterol synthesis rate and 27-hydroxycholesterol production are more importantly linked with the plasma levels of sCD40 than total cholesterol. (PMID: 16081359, 17012138, 11504730, 9144161) |
| Synonyms |
- (25R)-26-Hydroxycholesterol
- (25R)-Cholest-5-ene-3b,26-diol
- (25R)-Cholest-5-ene-3beta,26-diol
- (3-beta)-cholest-5-ene-3,26-diol
- (3b,25R)-Cholest-5-ene-3,26-diol
- (3beta,25R)-Cholest-5-ene-3,26,diol
- 26-hydroxycholesterol(25R)
- Cholest-5-ene-3-beta,26-diol
- Cholest-5-ene-3beta,26-diol
- Cholest-5-ene-3beta,27-diol
- cholest-(25R)-5-en-3beta,26-diol
- Cholest-5-ene-3-beta,27-diol
- Cholest-5-ene-3-b,27-diol
|
| Chemical IUPAC Name |
(3S,8S,9S,10R,13R,14S,17R)-17-[(2R)-7-hydroxy-6-methyl-heptan-2-yl]-10,13-d |
| Chemical Formula |
C27H46O2 |
| Chemical Structure |
 |
| Chemical Taxonomy |
| Kingdom |
|
| Super Class |
- Cholesterols and derivatives
|
| Class |
- Steroids and Steroid Derivatives
|
| Sub Class |
|
| Family |
|
| Species |
- primary alcohol
- secondary alcohol
- alkene
|
| Biofunction |
- Hormones, Membrane component
|
| Application |
| — |
| Source |
|
|
| Average Molecular Weight |
402.653 |
| Monoisotopic Molecular Weight |
402.349792 |
| Isomeric SMILES |
C[C@@H](CO)CCC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C |
| Canonical SMILES |
CC(CO)CCCC(C)C1CCC2C3CC=C4CC(O)CCC4(C)C3CCC12C |
| KEGG Compound ID |
C06340  |
| BioCyc ID |
27-HYDROXYCHOLESTEROL  |
| BiGG ID |
48021  |
| Wikipedia Link |
Not Available |
| NuGOwiki Link |
HMDB02103  |
| Metagene Link |
HMDB02103  |
| METLIN ID |
6487  |
| PubChem Compound |
99470  |
| PubChem Substance |
7850685  |
| ChEBI ID |
16546  |
| CAS Registry Number |
20380-11-4 |
| InChI Identifier |
InChI=1/C27H46O2/c1-18(17-28)6-5-7-19(2)23-10-11-24-22-9-8-20-16-21(29)12-14-26(20,3)25(22)13-15-27(23,24)4/h8,18-19,21-25,28-29H,5-7,9-17H2,1-4H3/t18-,19-,21+,22+,23-,24+,25+,26+,27-/m1/s1 |
| Synthesis Reference |
Hausheer, Frederick H.; Haridas, Kochat. Process for preparing 27-hydroxycholesterol and related derivatives. PCT Int. Appl. (1997), 38 pp. |
| Melting Point (Experimental) |
Not Available |
| Experimental Water Solubility |
Not Available
Source: PhysProp
|
| Predicted Water Solubility |
2.11e-04 mg/mL [Predicted by ALOGPS]
Calculated using ALOGPS
|
| Physiological Charge |
0 |
| State |
Solid |
| Experimental LogP/Hydrophobicity |
Not Available
Source: PhysProp
|
| Predicted LogP/Hydrophobicity |
6.21 [Predicted by ALOGPS]; 6.6 [Predicted by PubChem via XLOGP]
Calculated using ALOGPS
|
| Material Safety Data Sheet (MSDS) |
Not Available |
| MOL File |
Show |
| SDF File |
Show |
| PDB File |
Show |
| 2D Structure |
|
| 3D Structure |
|
| Experimental PDB ID |
Not Available |
| Experimental 1H NMR Spectrum |
Not Available |
| Experimental 13C NMR Spectrum |
Not Available |
| Experimental 13C HSQC Spectrum |
Not Available |
| Predicted 1H NMR Spectrum |
Show Image Show Peaklist
|
| Predicted 13C NMR Spectrum |
Show Image Show Peaklist
|
| Mass Spectrum |
Not Available |
| Simplified TOCSY Spectrum |
Not Available |
| BMRB Spectrum |
Not Available |
| Cellular Location |
- Membrane (Predicted from LogP)
- endoplasmic reticulum
- mitochondria
|
| Biofluid Location |
- Blood
- Cerebrospinal Fluid
|
| Tissue Location |
| Tissue |
References |
| Brain |
— |
| Fibroblasts |
— |
| Neuron |
— |
|
| Concentrations (Normal) |
| Biofluid |
Blood |
| Value |
0.3 +/- 0.074 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Patient information |
Normal |
| Comments |
Not Available |
| References |
- Burkard I, Rentsch KM, von Eckardstein A: Determination of 24S- and 27-hydroxycholesterol in plasma by high-performance liquid chromatography-mass spectrometry. J Lipid Res. 2004 Apr;45(4):776-81. Epub 2004 Jan 16. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.0013 +/- 0.0001 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Patient information |
Normal |
| Comments |
Not Available |
| References |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.002 +/- 0.0004 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Patient information |
Normal |
| Comments |
Not Available |
| References |
- Leoni V, Lutjohann D, Masterman T: Levels of 7-oxocholesterol in cerebrospinal fluid are more than one thousand times lower than reported in multiple sclerosis. J Lipid Res. 2005 Feb;46(2):191-5. Epub 2004 Dec 1. [PubMed
]
|
|
| Concentrations (Abnormal) |
| Biofluid |
CSF |
| Value |
0.0026 +/- 0.0002 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Multiple sclerosis |
| Comments |
With gadolinium-enhancing lesion |
| References |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.0038 +/- 0.0003 uM |
| Age |
Elderly:>65 yrs old |
| Sex |
Both |
| Condition |
Alzheimer's disease |
| Comments |
Not Available |
| References |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.01 +/- 0.001 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Demyelinating polyneuropathy |
| Comments |
Not Available |
| References |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.0058 +/- 0.0006 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Subarachnoid hemorrhage |
| Comments |
Not Available |
| References |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.006 +/- 0.0006 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Meningitis |
| Comments |
Viral |
| References |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.0063 +/- 0.001 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Neuroborreliosis |
| Comments |
Not Available |
| References |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.0045 +/- 0.001 uM |
| Age |
Elderly:>65 yrs old |
| Sex |
Both |
| Condition |
Mild cognitive impairment |
| Comments |
Also known as incipient dementia or isolated memory impairment |
| References |
- Leoni V, Shafaati M, Salomon A, Kivipelto M, Bjorkhem I, Wahlund LO: Are the CSF levels of 24S-hydroxycholesterol a sensitive biomarker for mild cognitive impairment? Neurosci Lett. 2006 Apr 10-17;397(1-2):83-7. Epub 2006 Jan 6. [PubMed
]
|
| Biofluid |
CSF |
| Value |
0.003 +/- 0.0008 uM |
| Age |
Adult:>18 yrs old |
| Sex |
Both |
| Condition |
Multiple sclerosis |
| Comments |
Not Available |
| References |
- Leoni V, Lutjohann D, Masterman T: Levels of 7-oxocholesterol in cerebrospinal fluid are more than one thousand times lower than reported in multiple sclerosis. J Lipid Res. 2005 Feb;46(2):191-5. Epub 2004 Dec 1. [PubMed
]
|
|
| Associated Disorders |
| Condition |
References |
| Alzheimer's disease |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Demyelinating polyneuropathy |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Meningitis |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Mild cognitive impairment |
- Leoni V, Shafaati M, Salomon A, Kivipelto M, Bjorkhem I, Wahlund LO: Are the CSF levels of 24S-hydroxycholesterol a sensitive biomarker for mild cognitive impairment? Neurosci Lett. 2006 Apr 10-17;397(1-2):83-7. Epub 2006 Jan 6. [PubMed
]
|
| Multiple sclerosis |
|
| Neuroborreliosis |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
| Subarachnoid hemorrhage |
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
|
|
| OMIM ID |
|
| Pathways |
|
| General References |
- Burkard I, Rentsch KM, von Eckardstein A: Determination of 24S- and 27-hydroxycholesterol in plasma by high-performance liquid chromatography-mass spectrometry. J Lipid Res. 2004 Apr;45(4):776-81. Epub 2004 Jan 16. [PubMed
]
- Fu X, Menke JG, Chen Y, Zhou G, MacNaul KL, Wright SD, Sparrow CP, Lund EG: 27-hydroxycholesterol is an endogenous ligand for liver X receptor in cholesterol-loaded cells. J Biol Chem. 2001 Oct 19;276(42):38378-87. Epub 2001 Aug 14. [PubMed
]
- Rajagopalon I, Kok E, Cohen BI, Javitt NB: 26-Hydroxycholesterol disulfate: metabolism and excretion in the normal neonate. J Steroid Biochem. 1986 Dec;25(6):991-4. [PubMed
]
- Li S, Pang J, Jackson EM, Wilson WK, Mott GE, Schroepfer GJ Jr: Kinetics and plasma concentrations of 26-hydroxycholesterol in baboons. Biochim Biophys Acta. 2000 May 31;1485(2-3):173-84. [PubMed
]
- Frolov A, Zielinski SE, Crowley JR, Dudley-Rucker N, Schaffer JE, Ory DS: NPC1 and NPC2 regulate cellular cholesterol homeostasis through generation of low density lipoprotein cholesterol-derived oxysterols. J Biol Chem. 2003 Jul 11;278(28):25517-25. Epub 2003 Apr 28. [PubMed
]
- Brown J 3rd, Theisler C, Silberman S, Magnuson D, Gottardi-Littell N, Lee JM, Yager D, Crowley J, Sambamurti K, Rahman MM, Reiss AB, Eckman CB, Wolozin B: Differential expression of cholesterol hydroxylases in Alzheimer's disease. J Biol Chem. 2004 Aug 13;279(33):34674-81. Epub 2004 May 17. [PubMed
]
- Leoni V, Masterman T, Mousavi FS, Wretlind B, Wahlund LO, Diczfalusy U, Hillert J, Bjorkhem I: Diagnostic use of cerebral and extracerebral oxysterols. Clin Chem Lab Med. 2004 Feb;42(2):186-91. [PubMed
]
- Bellosta S, Corsini A, Bernini F, Granata A, Didoni G, Mazzotti M, Fumagalli R: 27-Hydroxycholesterol modulation of low density lipoprotein metabolism in cultured human hepatic and extrahepatic cells. FEBS Lett. 1993 Oct 11;332(1-2):115-8. [PubMed
]
- Heverin M, Bogdanovic N, Lutjohann D, Bayer T, Pikuleva I, Bretillon L, Diczfalusy U, Winblad B, Bjorkhem I: Changes in the levels of cerebral and extracerebral sterols in the brain of patients with Alzheimer's disease. J Lipid Res. 2004 Jan;45(1):186-93. Epub 2003 Oct 1. [PubMed
]
- Shoda J, Toll A, Axelson M, Pieper F, Wikvall K, Sjovall J: Formation of 7 alpha- and 7 beta-hydroxylated bile acid precursors from 27-hydroxycholesterol in human liver microsomes and mitochondria. Hepatology. 1993 Mar;17(3):395-403. [PubMed
]
- Goldman M, Vlahcevic ZR, Schwartz CC, Gustafsson J, Swell L: Bile acid metabolism in cirrhosis. VIII. Quantitative evaluation of bile acid synthesis from [7 beta-3H]7 alpha-hydroxycholesterol and [G-3H]26-hydroxycholesterol. Hepatology. 1982 Jan-Feb;2(1):59-66. [PubMed
]
- Summerfield JA, Billing BH, Shackleton CH: Identification of bile acids in the serum and urine in cholestasis. Evidence for 6alpha-hydroxylation of bile acids in man. Biochem J. 1976 Feb 15;154(2):507-16. [PubMed
]
- Lala DS, Syka PM, Lazarchik SB, Mangelsdorf DJ, Parker KL, Heyman RA: Activation of the orphan nuclear receptor steroidogenic factor 1 by oxysterols. Proc Natl Acad Sci U S A. 1997 May 13;94(10):4895-900. [PubMed
]
- Norlin M, Andersson U, Bjorkhem I, Wikvall K: Oxysterol 7 alpha-hydroxylase activity by cholesterol 7 alpha-hydroxylase (CYP7A). J Biol Chem. 2000 Nov 3;275(44):34046-53. [PubMed
]
|