4-Hydroxyestradiol (Synonyms: 4-Hydroxy-17β-estradiol) |
| Katalog-Nr.GC19552 |
4-Hydroxyestradiol (4-Hydroxy-17β-Estradiol) ist ein endogener Metabolit von Estradiol. 4-Hydroxyestradiol ist krebserzeugend und wirkt in Brustepithelzellen mutagen. 4-Hydroxyestradiol hemmt kompetitiv die Bindung von Estradiol an den Östrogenrezeptor mit einem Ki von 0,48 nM.
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Cas No.: 5976-61-4
Sample solution is provided at 25 µL, 10mM.
4-Hydroxyestradiol is a catechol estrogen and minor metabolite of estrogen.[1][2] 4-Hydroxyestradiol is formed from estrogen by the cytochrome P450 (CYP) isoform CYP1B1.[2] Production of 4-hydroxyestradiol is increased in microsomes prepared from human mammary adenocarcinoma and fibroadenoma microsomes compared with microsomes prepared from non-cancerous tissues.[1] 4-Hydroxyestradiol (25 mg/animal) induces renal tumor formation in male hamsters.[3]
Reference:
[1]. Liehr, J.C., and Ricci, M.J. 4-Hydroxylation of estrogens as marker of human mammary tumors. Proc. Natl. Acad. Sci. USA 93(8), 3294-3296 (1996).
[2]. Yager, J.D., and Liehr, J.G. Molecular mechanisms of estrogen carcinogenesis. Annu. Rev. Pharmacol. Toxicol. 36, 203-232 (1996).
[3]. Liehr, J.G., Fang, W.F., Sirbasku, D.A., et al. Carcinogenicity of catechol estrogens in Syrian hamsters. J. Steroid Biochem. 24(1), 353-356 (1986).
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