4-Hydroxytamoxifen(Synonyms: 4-羟基他莫昔芬; (Z)-4-Hydroxytamoxifen; trans-4-Hydroxytamoxifen; (Z)-Afimoxifene)

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4-Hydroxytamoxifen (Synonyms: 4-羟基他莫昔芬; (Z)-4-Hydroxytamoxifen; trans-4-Hydroxytamoxifen; (Z)-Afimoxifene) 纯度: 99.95%

4-Hydroxytamoxifen ((Z)-4-Hydroxytamoxifen) 是一种口服有效,选择性的雌激素受体调节剂 (SERM)。4-Hydroxytamoxifen ((Z)-4-Hydroxytamoxifen) 基于 ER 介导的细胞核易位诱导 CRISPR/Cas9 系统。

4-Hydroxytamoxifen(Synonyms: 4-羟基他莫昔芬; (Z)-4-Hydroxytamoxifen;  trans-4-Hydroxytamoxifen;  (Z)-Afimoxifene)

4-Hydroxytamoxifen Chemical Structure

CAS No. : 68047-06-3

规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥639 In-stock
5 mg ¥750 In-stock
10 mg ¥950 In-stock
25 mg ¥2050 In-stock
50 mg ¥4000 In-stock
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4-Hydroxytamoxifen 相关产品

相关化合物库:

  • Bioactive Compound Library Plus
  • Anti-Cancer Compound Library
  • Orally Active Compound Library

生物活性

4-Hydroxytamoxifen ((Z)-4-Hydroxytamoxifen) is an orally active, selective estrogen receptor modulator (SERM). 4-Hydroxytamoxifen ((Z)-4-Hydroxytamoxifen) induces CRISPR/Cas9 systems based on ER mediated nucleus translocation[1][2][3][4].

IC50 & Target[1][2]

Estrogen receptor

3.3 nM (IC50)

CRISPR/Cas9

 

体外研究
(In Vitro)

4-Hydroxytamoxifen (Monohydroxytamoxifen) is a selective ostrogen receptor antagonist, with an IC50 of 3.3 nM for the [3H]oestradiol binding to oestrogen receptor. 4-Hydroxytamoxifen (10, 100 nM) enables to inhibit the binding of [3H]oestradiol to the human 8 S oestrogen receptor[1]. 4-Hydroxytamoxifen activates intein-linked inactive Cas9, reduces off-target CRISPR-mediated gene editing. In human cells, conditionally active Cas9s modify target genomic sites with up to 25-fold higher specificity than wild-type Cas9[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究
(In Vivo)

4-Hydroxytamoxifen (0.2, 1 and 5 μg/day, p.o.) causes a dose-related decrease in uterine wet weight of immature rats[1]. 4-Hydroxytamoxifen (6 μg/0.1 mL sesame oil/day, s.c.) effectively attenuates methamphetamine-induced nigrostriatal dopamine depletions in bothsexes of intact and gonadectomized C57BL/6 J mice. 4-Hydroxytamoxifen does not alter the dopamine content levels in the striatum[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

分子量

387.51

Formula

C26H29NO2

CAS 号

68047-06-3

中文名称

4-羟基他莫昔芬

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 125 mg/mL (322.57 mM; Need ultrasonic)

Ethanol : 20 mg/mL (51.61 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.5806 mL 12.9029 mL 25.8058 mL
5 mM 0.5161 mL 2.5806 mL 5.1612 mL
10 mM 0.2581 mL 1.2903 mL 2.5806 mL

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.08 mg/mL (5.37 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (5.37 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液

  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.08 mg/mL (5.37 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (5.37 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
  • 3.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.08 mg/mL (5.37 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (5.37 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Jordan VC, et al. A monohydroxylated metabolite of tamoxifen with potent antioestrogenic activity. J Endocrinol. 1977 Nov;75(2):305-16.

    [2]. Davis KM, et al. Small molecule-triggered Cas9 protein with improved genome-editing specificity. Nat Chem Biol. 2015 May;11(5):316-8.

    [3]. Kuo YM, et al. 4-Hydroxytamoxifen attenuates methamphetamine-induced nigrostriatal dopaminergic toxicity in intact and gonadetomized mice. J Neurochem. 2003 Dec;87(6):1436-43.

    [4]. Zhang J, et al. Drug Inducible CRISPR/Cas Systems. Comput Struct Biotechnol J. 2019;17:1171-1177.

Kinase Assay
[1]

Cytosol (200 μL) is incubated for 30 min at 4°C with different concentrations of oestradiol, tamoxifen and (4-Hydroxytamoxifen) or dihydroxytamoxifen administered in 10 μL methanol. Control tubes are incubated with 10 μL methanol alone and non-specific binding is determined in a parallel incubation of cytosol (200 μL) with methanol (10 μL) containing DES (5 × 106 M). [2,4,6,7-3H]Oestradiol solution (50 μL) in TED buffer is added to each tube to give a final concentration of 2 × 10-9 M. Incubation is continued for 4 h (4°C) and then 400 μL of a suspension of dextran-coated charcoal (250 mg % Norit A, 2.5 mg % dextran) in TED buffer are added and allowed to stand for 20 min. Tubes are centrifuged at 800 g for 10 min (4°C) and 400 μL samples of the supernatant are added to 10 mL tritium scintillator (6 g butyl PBD, 135 mL toluene, 720 ml dioxan, 100 g naphthalene, 45 mL absolute methanol). Samples are counted for 10 min in a liquid scintillation spectrometer. Counting efficiency is determined by external standardization (35-36 %). Results are represented as a percentage of the specifically bound radioactivity (c.p.m.) in the control tubes[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration
[3]

Mice[3]
Animals of each sex are divided into two groups: one group receives 4-Hydroxytamoxifen [6 μg/0.1 mL sesame oil/day, subcutaneously (s.c.) starting at 06.00 h] injections for three consecutive days, while the other group receives an equivalent amount of sesame oil injection for 3 days. Four hours following the third injection, each group is then subdivided into two groups: one receives four cumulative doses of methamphetamine hydrochloride (10 mg/kg, s.c.), and the other receives a comparable volume of saline at 2-h intervals. Bilateral gonadectomy is performed under pentobarbital anesthesia (50 mg/kg, intraperitoneally). Five weeks after surgery,gonadectomized mice of each sex are randomly divided into six groups. Five groups of each sex receive three daily injections ofvarious concentrations of 4-Hydroxytamoxifen (0, 1.5, 3.0, 6.0, and 12.0 μg/0.1 mL sesame oil/day). Four hours following the third injection, mice receive four doses of methamphetamine (MA, 10 mg/kg) at 2-h intervals. The remaining group of each sex receives sesame oil pretreatment for three consecutive days, followed by saline injections, and serves as the control group[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

参考文献
  • [1]. Jordan VC, et al. A monohydroxylated metabolite of tamoxifen with potent antioestrogenic activity. J Endocrinol. 1977 Nov;75(2):305-16.

    [2]. Davis KM, et al. Small molecule-triggered Cas9 protein with improved genome-editing specificity. Nat Chem Biol. 2015 May;11(5):316-8.

    [3]. Kuo YM, et al. 4-Hydroxytamoxifen attenuates methamphetamine-induced nigrostriatal dopaminergic toxicity in intact and gonadetomized mice. J Neurochem. 2003 Dec;87(6):1436-43.

    [4]. Zhang J, et al. Drug Inducible CRISPR/Cas Systems. Comput Struct Biotechnol J. 2019;17:1171-1177.

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