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  3. Arzoxifene hydrochloride

Arzoxifene hydrochloride (Synonyms: LY353381 hydrochloride; SERM III hydrochloride)

Cat. No.: HY-13556A
Handling Instructions

Arzoxifene (LY353381) hydrocloride is a selective estrogen receptor modulator that is a potent estrogen antagonist in mammary and uterine tissue while acting as an estrogen agonist to maintain bone density and lower serum cholesterol.

For research use only. We do not sell to patients.

Arzoxifene hydrochloride Chemical Structure

Arzoxifene hydrochloride Chemical Structure

CAS No. : 182133-27-3

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Description

Arzoxifene (LY353381) hydrocloride is a selective estrogen receptor modulator that is a potent estrogen antagonist in mammary and uterine tissue while acting as an estrogen agonist to maintain bone density and lower serum cholesterol.

IC50 & Target

Estrogen receptor[1]

In Vitro

Arzoxifene inhibits cell growth as effectively as the antiestrogen tamoxifen. Northern analysis reveals that arzoxifene exerts a statistically significant inhibition of pS2 and progesterone receptor B mRNA expression. Significant agonistic effect is observed on the antitrypsin mRNA expression. In contrast to estradiol and tamoxifen, arzoxifene does not upregulate cathepsin D mRNA and protein expression[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Arzoxifene prevents the ovariectomy-induced increase in body weight and serum cholesterol levels of treated rats and lowers them to below sham levels in a dose dependent manner, with maximum efficacy similar to estrogen or raloxifene. Arzoxifene (LY353381.HCl) prevents loss of bone due to ovariectomy with an ED50 of about 0.01 mg/kg with maximal efficacy observed at 0.1-1 mg/kg/day. Arzoxifene (LY353381.HCl) antagonizes the estrogen-induced elevation in uterine weight down to vehicle-dosed control levels with ED50 of 0.03 mg/kg/day[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial
Molecular Weight

512.06

Formula

C₂₈H₃₀ClNO₄S

CAS No.
Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

References
Cell Assay

For growth experiments, MCF-7 and MDA-MB-231 cells are treated with Arzoxifene HCl (LY353381.HCl) (0.1, 1, 10, 100, 1000 nM). Medium is renewed at days 3 and 5. At day 6, four wells are used for each cell-number determination by counting in a hemocytometer[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration
[2]

Rats[2]

Antiestrogen activity is evaluated in 21-day old Sprague Dawley rats.17α-Ethynyl estradiol at 0.1 mg/kg/day is used as the estrogenic stimulus to increase uterine weight in these rats. Arzoxifene HCl (LY353381.HCl)LY353381.HCl (0.001-10 mg/kg) or raloxifene (1 mg/kg) are administered by oral gavage in a volume of 0.2 mL, 15 min prior to the EE2 gavage. Dosing with test compounds is continued for 3 consecutive days. Animals are fasted over night, following the final dose[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
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Arzoxifene hydrochloride
Cat. No.:
HY-13556A
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