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2-Methoxyestradiol

2-Methoxyestradiol
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Purity:99.95%
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2-Methoxyestradiol

Catalog No. T2220Cas No. 362-07-2
2-Methoxyestradiol (2-ME2) is an orally bioavailable estradiol metabolite with potential antineoplastic activity. 2-Methoxyestradiol inhibits angiogenesis by reducing endothelial cell proliferation and inducing endothelial cell apoptosis. This agent also inhibits tumor cell growth by binding to tubulin, resulting in antimitotic activity, and by inducing caspase activation, resulting in cell cycle arrest in the G2 phase, DNA fragmentation, and apoptosis.
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Pack SizePriceAvailabilityQuantity
50 mg$50In Stock
100 mg$58In Stock
1 mL x 10 mM (in DMSO)$30In Stock
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Product Introduction

Bioactivity
Description
2-Methoxyestradiol (2-ME2) is an orally bioavailable estradiol metabolite with potential antineoplastic activity. 2-Methoxyestradiol inhibits angiogenesis by reducing endothelial cell proliferation and inducing endothelial cell apoptosis. This agent also inhibits tumor cell growth by binding to tubulin, resulting in antimitotic activity, and by inducing caspase activation, resulting in cell cycle arrest in the G2 phase, DNA fragmentation, and apoptosis.
In vitro
2-Methoxyestradiol (60 mg/kg/day) can reduce tumor size by fourfold, and increasing the dose tenfold further reduces it by 23 times. This compound demonstrates dose-dependent therapeutic efficacy in the 9L rat glioma model (9L-V6R), significantly decreasing HIF-1 activity and inhibiting tumor growth.
In vivo
2-Methoxyestradiol (0.5 μM) inhibits the TGF-β3-induced expression of Type I collagen (Col I) (αI), Col III (αI), connective tissue growth factor, plasminogen activator inhibitor, and α-smooth muscle actin. In MDA-MB-231 cells, it suppresses the transcriptional activation of HIF-1-regulated target genes without affecting HIF-1α transcription itself. It inhibits cell proliferation in breast cancer cell line MDA-MB-435 (IC50: 1.38 μM) and ovarian cancer cell line SK-OV-3 (IC50: 1.79 μM). Furthermore, in rat aortic smooth muscle A-10 cells, 2-Methoxyestradiol prevents microtubule disassembly (EC50: 7.5 μM) and mitigates TGF-β3-induced Smad2/3 phosphorylation and nuclear translocation, as well as inhibiting the activation of the TGF-β3-induced PI3K/Akt/mTOR pathway. Additionally, it suppresses cell proliferation in MCF-7 (IC50: 52 μM) and BM (IC50: 8 μM) cells.
Kinase Assay
Microtubule depolymerizing activity: The effects of 2-Methoxyestradiol on cellular microtubule depolymerization are determined by indirect immunofluorescence techniques in rat aortic smooth muscle A-10 cells. Microtubules are visualized using a β-tubulin antibody. Three viewers determines the percent microtubule loss for each treatment concentration. The data are averaged and plotted as percent microtubule loss versus drug concentration and the EC50s for microtubule depolymerization calculated from the log dose–response curves.
Cell Research
The sulforhodamine B (SRB) assay is used to evaluate the antiproliferative activity of 2-Methoxyestradiol in the MDA-MB-435 and SK-OV-3 cell lines. Cells a plated into 96-well plates and allowed to grow and attach for 24 hours followed by addition of 2-Methoxyestradiol or vehicle controls. The cells are incubated with drugs for 48 hours and then the cellular protein is fixed, stained, and concentration determined by absorbance at 560 nm. Log dose–response curves are constructed for each experiment and the IC50 for inhibition of proliferation determined.(Only for Reference)
AliasNSC-659853, 2-MeOE2, 2-ME2
Chemical Properties
Molecular Weight302.41
FormulaC19H26O3
Cas No.362-07-2
Storage & Solubility Information
StoragePowder: -20°C for 3 years | In solvent: -80°C for 1 year
Solubility Information
DMSO: 15.1 mg/mL (50 mM)
Solution Preparation Table
DMSO
1mg5mg10mg50mg
1 mM3.3068 mL16.5338 mL33.0677 mL165.3384 mL
5 mM0.6614 mL3.3068 mL6.6135 mL33.0677 mL
10 mM0.3307 mL1.6534 mL3.3068 mL16.5338 mL
20 mM0.1653 mL0.8267 mL1.6534 mL8.2669 mL

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