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Estriol(Oestriol)
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Estriol(Oestriol)图片
CAS NO:50-27-1
规格:≥98%
包装与价格:
包装价格(元)
250mg电议
500mg电议
1g电议
2g电议
5g电议
10g电议
25g电议

产品介绍
理化性质和储存条件
Molecular Weight (MW)288.39
FormulaC18H24O3
CAS No.50-27-1
Storage-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)DMSO: 57 mg/mL (197.6 mM)
Water: <1 mg/mL
Ethanol: 10 mg/mL (34.7 mM)
Solubility (In vivo)5% DMSO+95% Corn oil: 10 mg/mL
SynonymsNSC-12169; oestriol; NSC12169; NSC 12169;
实验参考方法
In Vitro

In vitro activity: MTT assays using G-1 shows that, in SkBr3 cells, the proliferative effect induced by 100 nM G-1 is abolished in the presence of 1 μM estriol which acts as an antagonist of GPR30-dependent pathway. A cell-free transcription assay demonstrates that the antiestrogenic activity exhibited by estriol is because of interferring with estradiol-induced positive cooperative binding and receptor dimerization, binding of hER complexes to ERE, as well as reducing estradiol-dependent transcription in a dose-dependent manner. A recent study shows that estrogen (estrone, estradiol, and estriol) inhibits Alzheimer's disease-associated low-order Aβ oligomer formation, and among them, estriol shows the strongest in vitro activity.


Cell Assay: For the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, cells are cultured in plastic 96-well plates under 200 μL of growth medium and at an initial density of 10,000 cells per well. Cells are washed once they have attached and further incubated in medium containing 2.5% charcoal-stripped FBS with the indicated treatment. The medium is changed every 2 days (with treatment). Where applicable, 200 ng of the indicated plasmids are transfected every 2 days before treatments using Fugene6 Reagent, as recommended by the manufacturer. Following 6 days of incubation, the assay mixture (10μL per well) containing 1mg/mL 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) is added to each well and incubated at 37 oC for 4 h in a 5% CO2 atmosphere. The yellow tetrazolium MTT, reduced by metabolically active cells, results in intracellular purple formazan, which is released after overnight incubation with 200 μL 1% sodium dodecyl sulfate in 0.01N HCL and quantified spectrophotometrically by reading absorbance at 570nm using an enzyme-linked immunosorbent assay plate reader.

In VivoIn mPTEN+/- mice, estriol treatments resulted in a 187.54% gain in the relative ratio of uterine wet weight to body weight; estriol also increases the ratio to 176.88% in wild-type mice. Estriol treatment (20 mg/kg ip), in vivo, sensitizes Kupffer cells to LPS via mechanisms dependent on an increase in CD14 by elevated portal blood endotoxin caused by increased gut permeability in rats; while one-half of the rats given estriol intraperitoneally 24 hours before an injection of a sublethal dose of LPS (5 mg/kg) died within 24 hours.
Animal modelmPTEN+/- and wild-type mice
Formulation & DosageDissolved in ethanol and corn oil; 4 μg/g/day; s.c. administration
References

Mol Cell Endocrinol. 2010 May 14;320(1-2):162-70; Lab Invest. 2006 Mar;86(3):286-96.