25-Hydroxycholesterol

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25-Hydroxycholesterol is a derivative of cholesterol, which plays a role in various biological processes in humans and other species. It is involved in cholesterol metabolism, antivirus process, inflammatory and immune response, and survival signaling pathway. 25-hydroxycholesterol is biosynthesized from cholesterol by adding a hydroxyl group at the position 25-carbon of a steroid nucleus. This reaction is catalyzed by cholesterol 25-hydroxylase, a family of enzymes that use oxygen and a di-iron cofactor to catalyze hydroxylation reaction.[1][2]

25-Hydroxycholesterol
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
DrugBank
ECHA InfoCard 100.163.612 Edit this at Wikidata
EC Number
  • 635-752-4
KEGG
UNII
  • InChI=1S/C27H46O2/c1-18(7-6-14-25(2,3)29)22-10-11-23-21-9-8-19-17-20(28)12-15-26(19,4)24(21)13-16-27(22,23)5/h8,18,20-24,28-29H,6-7,9-17H2,1-5H3/t18-,20+,21+,22-,23+,24+,26+,27-/m1/s1
    Key: INBGSXNNRGWLJU-ZHHJOTBYSA-N
  • CC(CCCC(C)(C)O)C1CCC2C1(CCC3C2CC=C4C3(CCC(C4)O)C)C
Properties
C27H46O2
Molar mass 402.7
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

The CYP3A4 enzyme, a member of the cytochrome P450 family, can catalyze the oxidation of 25-hydroxycholesterol to 7α,25-dihydroxycholesterol, whereas 25-hydroxycholesterol can inhibit CYP4F2 mRNA expression, so that members of the cytochrome P450 family are also involved in the metabolism of 25-hydroxycholesterol besides cholesterol 25-hydroxylase.[3]

25-hydroxycholesterol has been found in various organisms such as mice, rats, rabbits, and cows. As of 2023, its presence in other species has not been extensively studied.[2][1]

See also

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References

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  1. ^ a b Zhang J, Zhu Y, Wang X, Wang J (2023). "25-hydroxycholesterol: an integrator of antiviral ability and signaling". Front Immunol. 14: 1268104. doi:10.3389/fimmu.2023.1268104. PMC 10533924. PMID 37781400.
  2. ^ a b Cao Q, Liu Z, Xiong Y, Zhong Z, Ye Q (2020). "Multiple Roles of 25-Hydroxycholesterol in Lipid Metabolism, Antivirus Process, Inflammatory Response, and Cell Survival". Oxid Med Cell Longev. 2020: 8893305. doi:10.1155/2020/8893305. PMC 7695496. PMID 33274010.
  3. ^ Hsu MH, Savas U, Griffin KJ, Johnson EF (February 2007). "Regulation of human cytochrome P450 4F2 expression by sterol regulatory element-binding protein and lovastatin". J Biol Chem. 282 (8): 5225–36. doi:10.1074/jbc.M608176200. PMID 17142457.

Further reading

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