27-Hydroxycholesterol

Names
IUPAC name

Cholest-5-ene-3β,27-diol

Systematic IUPAC name

(1R,3aS,3bS,7S,9aR,9bS,11aR)-1-[(2R,6R)-7-Hydroxy-6-methylheptan-2-yl]-9a,11a-dimethyl-2,3,3a,3b,4,6,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-cyclopenta[a]phenanthren-7-ol

Identifiers

CAS Number

* 20380-11-4 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 110495

IUPHAR/BPS

* 2752

PubChem CID

* 123976

UNII |

* 6T2NA6P5SQ Y

InChI

* InChI=1S/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

Key: FYHRJWMENCALJY-YSQMORBQSA-N

SMILES

* C[C@H](CCC[C@@H](C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC=C4[C@@]3(CC[C@@H](C4)O)C)C)CO

Properties

Chemical formula

| C27H46O2
Molar mass | 402.663 g·mol−1

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

27-Hydroxycholesterol (27-HC) is an endogenous oxysterol with multiple biological functions, including activity as a selective estrogen receptor modulator (SERM) (a mixed, tissue-specific agonist-antagonist of the estrogen receptor (ER)) and as an agonist of the liver X receptor (LXR).[1] It is a metabolite of cholesterol that is produced by the enzyme CYP27A1.[1]

A link between high cholesterol and breast cancer has been identified, and it has been proposed that this is due to 27-HC production by CYP27A1.[2] Because of its estrogenic action, 27-HC stimulates the growth of ER-positive breast cancer cells, and has been implicated in limiting the effectiveness of aromatase inhibitors in the treatment of breast cancer.[1] As such, identified CYP27A1 inhibitors, including the marketed drugs anastrozole, fadrozole, bicalutamide, dexmedetomidine, ravuconazole, and posaconazole, have been proposed as potential adjuvant therapies in ER-positive breast cancer.[1]

## See also[edit]

* 22R-Hydroxycholesterol
* 20α,22R-Dihydroxycholesterol
* 25-Hydroxycholesterol

## References[edit]

1. ^ a b c d Mast N, Lin JB, Pikuleva IA (2015). "Marketed Drugs Can Inhibit Cytochrome P450 27A1, a Potential New Target for Breast Cancer Adjuvant Therapy". Mol. Pharmacol. 88 (3): 428–36. doi:10.1124/mol.115.099598. PMC 4551053. PMID 26082378.
2. ^ Nelson ER, Wardell SE, Jasper JS, Park S, Suchindran S, Howe MK, Carver NJ, Pillai RV, Sullivan PM, Sondhi V, Umetani M, Geradts J, McDonnell DP (2013). "27-Hydroxycholesterol links hypercholesterolemia and breast cancer pathophysiology". Science. 342 (6162): 1094–8. Bibcode:2013Sci...342.1094N. doi:10.1126/science.1241908. PMC 3899689. PMID 24288332.

* v
* t
* e

Endogenous steroids

Precursors|

* Cholesterol
* 22R-Hydroxycholesterol
* 20α,22R-Dihydroxycholesterol
* Pregnenolone
* 11β-Hydroxypregnenolone
* 17α-Hydroxypregnenolone
* 21-Hydroxypregnenolone
* 17α,21-Dihydroxypregnenolone
* 11β,17α,21-Trihydroxypregnenolone

Corticosteroids|

| Glucocorticoids|

* 3α,5α-Tetrahydrocorticosterone
* 5α-Dihydrocorticosterone
* 11-Deoxycorticosterone
* 11-Deoxycortisol
* 11-Ketoprogesterone
* 21-Deoxycortisol
* 21-Deoxycortisone
* Corticosterone
* Cortisol
* Cortisone
* 17α-Hydroxypregnenolone
* 17α-Hydroxyprogesterone
* Pregnenolone
* Progesterone

* Metabolites: 5α-Dihydrocortisol
* 3α,5α-Tetrahydrocortisol

|

Mineralocorticoids|

* 5α-Dihydroaldosterone
* 11-Dehydrocorticosterone (11-oxocorticosterone, 17-deoxycortisone)
* 11-Deoxycortisol
* 11-Deoxycorticosterone
* 11β-Hydroxyprogesterone (21-deoxycorticosterone)
* 18-Hydroxy-11-deoxycorticosterone
* 18-Hydroxycorticosterone
* 18-Hydroxyprogesterone
* Aldosterone
* Corticosterone
* Cortisol

Sex steroids|

| Androgens|

* 11-Ketodihydrotestosterone
* 11-Ketotestosterone
* 7β-Hydroxyepiandrosterone
* 11β-Hydroxyandrostenedione
* Adrenosterone (11-ketoandrostenedione)
* Androstenediol
* Androstenedione
* Androsterone
* Dehydroandrosterone
* DHEA
* DHEA sulfate
* Dihydrotestosterone
* Epiandrosterone
* Epitestosterone
* 16α-Hydroxyandrostenedione
* 16α-Hydroxy-DHEA
* 16α-Hydroxy-DHEA sulfate
* Testosterone

* Metabolites: 3α-Androstanediol
* 3α-Androstanediol glucuronide
* 3β-Androstanediol
* 5β-Dihydrotestosterone
* 3α-Etiocholanediol
* 3β-Etiocholanediol
* Androstanetriols
* Androstenediol sulfate
* Androsterone glucuronide
* Androsterone sulfate
* Dihydrotestosterone glucuronide
* Dihydrotestosterone sulfate
* Etiocholanedione
* Etiocholanolone
* Etiocholanolone glucuronide
* Epietiocholanolone
* Testosterone glucuronide
* Testosterone sulfate

|

Estrogens|

* Estranes: Estetrol
* Estradiol
* Estrone
* Estriol
* 17α-Estradiol
* 16β-Epiestriol (16β-hydroxyestradiol)
* 17α-Epiestriol (16α-hydroxy-17α-estradiol)
* 16β,17α-Epiestriol (16β-hydroxy-17α-estradiol)
* 2-Hydroxyestradiol
* 2-Hydroxyestriol
* 2-Hydroxyestrone
* 4-Hydroxyestradiol
* 4-Hydroxyestriol
* 4-Hydroxyestrone
* 4-Methoxyestradiol
* 4-Methoxyestrone
* 16α-Hydroxyestrone
* 16β-Hydroxyestrone
* 16-Ketoestradiol
* 16-Ketoestrone

* Others: 27-Hydroxycholesterol
* 3α-Androstanediol
* 3β-Androstanediol
* 4-Androstenedione
* 5-Androstenediol
* DHEA
* DHEA sulfate
* 7-Keto-DHEA
* 7α-Hydroxy-DHEA
* 16α-Hydroxy-DHEA

* Metabolites: 2-Methoxyestradiol
* 2-Methoxyestrone
* 2-Methoxyestriol
* 4-Methoxyestriol
* Estradiol disulfate
* Estradiol glucuronide
* Estradiol 3-glucuronide
* Estradiol 3-glucuronide 17β-sulfate
* Estradiol sulfate
* Estradiol 17β-sulfate
* Estrone glucuronide
* Estrone sulfate
* Estriol glucuronide
* Estriol sulfate
* Lipoidal estradiol (e.g., estradiol stearate, estradiol palmitate)

Progestogens|

* Progesterone
* 16α-Hydroxyprogesterone
* 17α-Hydroxyprogesterone
* 20α-Dihydroprogesterone
* 20β-Dihydroprogesterone
* 5α-Dihydroprogesterone
* 11-Deoxycorticosterone
* 5α-DHDOC

* Metabolites: Allopregnanediol
* Pregnanediol
* Pregnanediol glucuronide
* Pregnanetriol

Neurosteroids|

* Cholestanes: 24S-Hydroxycholesterol
* Cholesterol

* Pregnanes: 3α-Dihydroprogesterone
* 3β-Dihydroprogesterone
* 5α-Dihydrocorticosterone
* 5α-Dihydroprogesterone
* 5β-Dihydroprogesterone
* Allopregnanolone
* Corticosterone
* DHC
* DHDOC
* 11-Deoxycorticosterone
* Epipregnanolone
* Isopregnanolone
* Pregnanolone
* Pregnenolone
* Pregnenolone sulfate
* Progesterone
* THB
* THDOC

* Androstanes: 3α-Androstanediol
* 3α-Androstenol
* 7-Keto-DHEA
* 7α-Hydroxy-DHEA
* 7β-Hydroxy-DHEA
* 7α-Hydroxyepiandrosterone
* 7β-Hydroxyepiandrosterone
* Androsterone
* DHEA
* DHEA sulfate
* Etiocholanolone

* Pheromones: 3α-Androstenol
* 3β-Androstenol
* Androstadienol
* Androstadienone
* Androstenone
* Androsterone
* Estratetraenol

Others|

* Vitamin D: 7-Dehydrocholesterol
* Calcidiol/Calcifediol
* Calcitriol
* Cholecalciferol

* Others: 7α-Hydroxycholesterol
* 11α-Hydroxyprogesterone
* 11β-Hydroxyprogesterone
* Cholesterol sulfate

* v
* t
* e

Estrogen receptor modulators

ER|

| Agonists|

* Steroidal: 2-Hydroxyestradiol
* 2-Hydroxyestrone
* 3-Methyl-19-methyleneandrosta-3,5-dien-17β-ol
* 3α-Androstanediol
* 3α,5α-Dihydrolevonorgestrel
* 3β,5α-Dihydrolevonorgestrel
* 3α-Hydroxytibolone
* 3β-Hydroxytibolone
* 3β-Androstanediol
* 4-Androstenediol
* 4-Androstenedione
* 4-Fluoroestradiol
* 4-Hydroxyestradiol
* 4-Hydroxyestrone
* 4-Methoxyestradiol
* 4-Methoxyestrone
* 5-Androstenediol
* 7-Oxo-DHEA
* 7α-Hydroxy-DHEA
* 7α-Methylestradiol
* 7β-Hydroxyepiandrosterone
* 8,9-Dehydroestradiol
* 8,9-Dehydroestrone
* 8β-VE2
* 10β,17β-Dihydroxyestra-1,4-dien-3-one (DHED)
* 11β-Chloromethylestradiol
* 11β-Methoxyestradiol
* 15α-Hydroxyestradiol
* 16-Ketoestradiol
* 16-Ketoestrone
* 16α-Fluoroestradiol
* 16α-Hydroxy-DHEA
* 16α-Hydroxyestrone
* 16α-Iodoestradiol
* 16α-LE2
* 16β-Hydroxyestrone
* 16β,17α-Epiestriol (16β-hydroxy-17α-estradiol)
* 17α-Estradiol (alfatradiol)
* 17α-Dihydroequilenin
* 17α-Dihydroequilin
* 17α-Epiestriol (16α-hydroxy-17α-estradiol)
* 17α-Ethynyl-3α-androstanediol
* 17α-Ethynyl-3β-androstanediol
* 17β-Dihydroequilenin
* 17β-Dihydroequilin
* 17β-Methyl-17α-dihydroequilenin
* Abiraterone
* Abiraterone acetate
* Alestramustine
* Almestrone
* Anabolic steroids (e.g., testosterone and esters, methyltestosterone, metandienone (methandrostenolone), nandrolone and esters, many others; via estrogenic metabolites)
* Atrimustine
* Bolandiol
* Bolandiol dipropionate
* Butolame
* Clomestrone
* Cloxestradiol
* Cloxestradiol acetate
* Conjugated estriol
* Conjugated estrogens
* Cyclodiol
* Cyclotriol
* DHEA
* DHEA-S
* ent-Estradiol
* Epiestriol (16β-epiestriol, 16β-hydroxy-17β-estradiol)
* Epimestrol
* Equilenin
* Equilin
* ERA-63 (ORG-37663)
* Esterified estrogens
* Estetrol
* Estradiol
* Estradiol esters
* Lipoidal estradiol
* Polyestradiol phosphate
* Estramustine
* Estramustine phosphate
* Estrapronicate
* Estrazinol
* Estriol
* Estriol esters
* Polyestriol phosphate
* Estrofurate
* Estrogenic substances
* Estromustine
* Estrone
* Estrone esters
* Estrone methyl ether
* Estropipate
* Etamestrol (eptamestrol)
* Ethinylandrostenediol
* Ethandrostate
* Ethinylestradiol
* Ethinylestradiol 3-benzoate
* Ethinylestradiol sulfonate
* Ethinylestriol
* Ethylestradiol
* Etynodiol
* Etynodiol diacetate
* Hexolame
* Hippulin
* Hydroxyestrone diacetate
* Lynestrenol
* Lynestrenol phenylpropionate
* Mestranol
* Methylestradiol
* Moxestrol
* Mytatrienediol
* Nilestriol
* Norethisterone
* Noretynodrel
* Orestrate
* Pentolame
* Prodiame
* Prolame
* Promestriene
* RU-16117
* Quinestradol
* Quinestrol
* Tibolone

* Nonsteroidal: (R,R)-THC
* (S,S)-THC
* 2,8-DHHHC
* β-LGND1
* β-LGND2 (GTx-878)
* AC-186
* Allenestrol
* Allenolic acid
* Benzestrol
* Bifluranol
* Bisdehydrodoisynolic acid
* Butestrol
* Carbestrol
* D-15414
* DCW234
* Diarylpropionitrile
* Dienestrol
* Dienestrol diacetate
* Diethylstilbestrol
* Diethylstilbestrol esters
* Dimestrol (dianisylhexene)
* Dimethylstilbestrol
* Doisynoestrol (fenocycline)
* Doisynolic acid
* Efavirenz
* Elacestrant
* ERB-196 (WAY-202196)
* Erteberel (SERBA-1, LY-500307)
* Estrobin (DBE)
* Fenestrel
* FERb 033
* Fosfestrol (diethylstilbestrol diphosphate)
* Furostilbestrol (diethylstilbestrol difuroate)
* GTx-758
* Hexestrol
* Hexestrol esters
* ICI-85966 (Stilbostat)
* M2613
* meso-Butestrol
* meso-Hexestrol
* Mestilbol
* Methallenestril
* Methestrol
* Methestrol dipropionate
* Paroxypropione
* Pentafluranol
* Phenestrol
* Prinaberel (ERB-041, WAY-202041)
* Propylpyrazoletriol
* Quadrosilan
* SC-3296
* SC-4289
* SERBA-2
* SKF-82,958
* Terfluranol
* Triphenylbromoethylene
* Triphenylchloroethylene
* Triphenyliodoethylene
* Triphenylmethylethylene (triphenylpropene)
* WAY-166818
* WAY-169916
* WAY-200070
* WAY-204688 (SIM-688)
* WAY-214156

* Unknown/unsorted: ERB-26
* ERA-45
* ERB-79
* ZK-283197

* Xenoestrogens: Anise-related (e.g., anethole, anol, dianethole, dianol, photoanethole)
* Chalconoids (e.g., isoliquiritigenin, phloretin, phlorizin (phloridzin), wedelolactone)
* Coumestans (e.g., coumestrol, psoralidin)
* Flavonoids (incl. 7,8-DHF, 8-prenylnaringenin, apigenin, baicalein, baicalin, biochanin A, calycosin, catechin, daidzein, daidzin, ECG, EGCG, epicatechin, equol, formononetin, glabrene, glabridin, genistein, genistin, glycitein, kaempferol, liquiritigenin, mirificin, myricetin, naringenin, penduletin, pinocembrin, prunetin, puerarin, quercetin, tectoridin, tectorigenin)
* Lavender oil
* Lignans (e.g., enterodiol, enterolactone, nyasol (cis-hinokiresinol))
* Metalloestrogens (e.g., cadmium)
* Pesticides (e.g., alternariol, dieldrin, endosulfan, fenarimol, HPTE, methiocarb, methoxychlor, triclocarban, triclosan)
* Phytosteroids (e.g., digitoxin (digitalis), diosgenin, guggulsterone)
* Phytosterols (e.g., β-sitosterol, campesterol, stigmasterol)
* Resorcylic acid lactones (e.g., zearalanone, α-zearalenol, β-zearalenol, zearalenone, zeranol (α-zearalanol), taleranol (teranol, β-zearalanol))
* Steroid-like (e.g., deoxymiroestrol, miroestrol)
* Stilbenoids (e.g., resveratrol, rhaponticin)
* Synthetic xenoestrogens (e.g., alkylphenols, bisphenols (e.g., BPA, BPF, BPS), DDT, parabens, PBBs, PHBA, phthalates, PCBs)
* Others (e.g., agnuside, rotundifuran)

|

Mixed
(SERMs)|

* 2-Phenylbenzofuran
* 2-Phenylbenzothiophene
* 4'-Hydroxynorendoxifen
* 27-Hydroxycholesterol
* Acefluranol
* Acolbifene
* Afimoxifene
* Anordiol
* Anordrin
* Arzoxifene
* Bazedoxifene
* Brilanestrant
* Broparestrol
* Camizestrant
* Chlorotrianisene
* Clomifene
* Clomifenoxide
* CN-55945-27
* Cyclofenil
* D-15413
* Desmethylchlorotrianisene
* Droloxifene
* Enclomifene
* Endoxifen
* Etacstil (GW-5638, DPC-974)
* Ethamoxytriphetol (MER-25)
* Femarelle
* Fispemifene
* GW-7604
* ICI-55548
* Idoxifene
* Lasofoxifene
* Levormeloxifene
* LN-1643
* LN-2299
* LY-117018
* Menerba
* Miproxifene
* Miproxifene phosphate
* MRL-37
* Nafoxidine
* Nitromifene
* NNC 45-0095
* NNC 45-0320
* NNC 45-0781
* NNC 45-1506
* Ormeloxifene
* Ospemifene
* Panomifene
* Pipendoxifene
* Promensil
* Raloxifene
* Rimostil (P-081)
* Spironolactone
* SS1010
* Tamoxifen
* TAS-108 (SR-16234)
* Toremifene
* Trioxifene
* TZE-5323
* U-11555A
* U-11634
* Y-134
* Zindoxifene
* Zuclomifene

Antagonists|

* (R,R)-THC
* 7β-Hydroxy-DHEA
* Chloroindazole
* Cytestrol acetate
* EM-800 (SCH-57050)
* Epitiostanol
* ERA-90
* ERB-88
* Fulvestrant (ICI-182780)
* Glyceollins (I, II, III, IV)
* ICI-164384
* MDL-101906
* Mepitiostane
* Methylepitiostanol
* Methylpiperidinopyrazole
* MIBE
* Oxabicycloheptene sulfonate
* Phenytoin
* PHTPP
* Prochloraz
* RU-39411
* RU-58668
* SS1020
* TAS-108 (SR-16234)
* ZB716
* ZK-164015
* ZK-191703

* Coregulator-binding modulators: ERX-11

* Noncompetitive inhibitors: Trilostane

GPER|

| Agonists|

* 2-Methoxyestradiol
* 7β-Hydroxyepiandrosterone
* Afimoxifene (4-hydroxytamoxifen)
* Aldosterone
* Atrazine
* Bisphenol A
* Daidzein
* DDT (p,p'-DDT, o',p'-DDE)
* Diarylpropionitrile
* Equol
* Estradiol
* Ethinylestradiol
* Fulvestrant (ICI-182780)
* G-1
* Genistein
* GPER-L1
* GPER-L2
* Hydroxytyrosol
* Kepone
* Niacin
* Niacinamide
* Nonylphenol
* Oleuropein
* PCBs (2,2',5'-PCB-4-OH)
* Propylpyrazoletriol
* Quercetin
* Raloxifene
* Resveratrol
* STX
* Tamoxifen
* Tectoridin

|

Antagonists|

* CCL18
* Estriol
* G-15
* G-36
* MIBE

Unknown|

* Diethylstilbestrol
* Zearalenone

See also
Receptor/signaling modulators
Estrogens and antiestrogens
Androgen receptor modulators
Progesterone receptor modulators
List of estrogens

* v
* t
* e

FXR and LXR modulators

FXR|

* Agonists: Bile acids
* Cafestol
* Chenodeoxycholic acid
* Cilofexor
* Fexaramine
* GW-4064
* Ivermectin
* Nidufexor
* Obeticholic acid
* Tropifexor

* Antagonists: Guggulsterone

LXR|

* Agonists: 22R-Hydroxycholesterol
* 24S-Hydroxycholesterol
* 27-Hydroxycholesterol
* Abequolixron
* Cholestenoic acid
* DMHCA
* GW-3965
* Hypocholamide
* T-0901317

* Antagonists: Efavirenz
* Larsucosterol

See also
Receptor/signaling modulators

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* v
* t
* e

*[CID]: Compound ID
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template
*[ER]: Estrogen receptor
*[SERMs]: Selective estrogen receptor modulators
*[GPER]: G protein-coupled estrogen receptor
*[FXR]: Farnesoid X receptor
*[LXR]: Liver X receptor