OP-1074
目录号 : GC64345
OP-1074，纯抗雌激素药，是一种选择性 ER 降解剂 (PA-SERD)，对 ERα 和 ERβ 具有特异性抗雌激素活性，可抑制 17β-estradiol (E2)-刺激的转录活性，IC50 分别为 1.6 和 3.2 nM。
Cas No.:1443752-76-8
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
OP-1074 is a pure antiestrogen and a selective ER degrader (PA-SERD), shows specific antiestrogenic activity for ERα and ERβ, inhibits 17β-estradiol (E2)-stimulated transcriptional activity with IC50 of 1.6 and 3.2 nM, respectively[1].
OP-1074 (0-100 nM; 24 hours) inhibits MCF-7 cells and CAMA-1 cells proliferation with IC50 values of 6.3 and 9.2 nM, respectively[1].OP-1074 (100 nM; 24 hours) destabilizatizes ERα protein expression in MCF-7 and CAMA-1 cells[1].
[1]. Fanning SW, et al. Specific stereochemistry of OP-1074 disrupts estrogen receptor alpha helix 12 and confers pure antiestrogenic activity.Nat Commun. 2018 Jun 18;9(1):2368.
| Cas No. | 1443752-76-8 | SDF | Download SDF |
| 分子式 | C29H31NO4 | 分子量 | 457.56 |
| 溶解度 | 储存条件 | -20°C, stored under nitrogen | |
| General tips | 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 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.1855 mL | 10.9275 mL | 21.8551 mL |
| 5 mM | 0.4371 mL | 2.1855 mL | 4.371 mL |
| 10 mM | 0.2186 mL | 1.0928 mL | 2.1855 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Specific stereochemistry of OP-1074 disrupts estrogen receptor alpha helix 12 and confers pure antiestrogenic activity
Nat Commun 2018 Jun 18;9(1):2368.PMID:29915250DOI:PMC6006285
Complex tissue-specific and cell-specific signaling by the estrogen receptor (ER) frequently leads to the development of resistance to endocrine therapy for breast cancer. Pure ER antagonists, which completely lack tissue-specific agonist activity, hold promise for preventing and treating endocrine resistance, however an absence of structural information hinders the development of novel candidates. Here we synthesize a small panel of benzopyrans with variable side chains to identify pure antiestrogens in a uterotrophic assay. We identify OP-1074 as a pure antiestrogen and a selective ER degrader (PA-SERD) that is efficacious in shrinking tumors in a tamoxifen-resistant xenograft model. Biochemical and crystal structure analyses reveal a structure activity relationship implicating the importance of a stereospecific methyl on the pyrrolidine side chain of OP-1074, particularly on helix 12.