• 产品描述： H3B-5942 is a selective, irreversible and orally active estrogen receptor covalent antagonist, inactivates both wild-type and mutant ERα by targeting Cys530, with Kis of 1 nM and 0.41 nM, respectively. H3B-5942 reduces ERα target gene GREB1, shows potent antitumor activity both in multiple cell lines or animals bearing ERαWT or ERα mutations

• 靶点： ERαY537S:0.41 nM (Ki);ERαWT:1 nM (Ki);EstrogenReceptor/ERR; Estrogen/progestogenReceptor

• 体外研究：
  H3B-5942 is a selective and irreversible estrogen receptor covalent antagonist, inactivates both wild-type and mutant ERα by targeting Cys530, with Kis of 1 nM and 0.41 nM, respectively. H3B-5942 elevates ERα protein level distinct from SERMs/SERD, blocks ERα-dependent transcription in breast cancer cells. H3B-5942 (0.01-10 μM) reduces ERα target gene GREB1 in MCF7-ERαWT, various MCF7-ERαMUT lines, and the PDX-ERαY537S/WT line. H3B-5942 also decreases proliferation of MCF7-Parental, MCF7-LTED-ERαWT, and MCF7-LTED-ERαY537C lines with GI50s of 0.5, 2, and 30 nM, respectively. H3B-5942 (10-25 nM) in combination with CDK4/6 inhibitors (≥25 pM) has synergic inhibitory effect on multiple cell lines bearing ERαWT or clinically frequent ERα mutations

• 体内研究：
  H3B-5942 (1, 3, 10, or 30 mg/kg, p.o, q.d. for 17 days) dose-dependently inhibits tumor growth in MCF7 xenograft model in athymic female nude mice. H3B-5942 (3, 10, 30, 100, and 200 mg/kg, p.o, q.d.) exhibits similar anti-tumor activity in the ERαY537S/WT ST941 model in athymic female nude mice. Animal Model: MCF7 xenograft model in athymic female nude mice Dosage: 1, 3, 10, or 30 mg/kg Administration: P.O. once a day (q.d.×1) for 17 days Result: Exhibited tumor growth inhibition (TGI) on day 17 of 19%, 41%, 68%, and 83%, respectively.

• 参考文献：
  1. Puyang X, et al. Discovery of Selective Estrogen Receptor Covalent Antagonists for the Treatment of ERαWT and ERαMUT Breast Cancer. Cancer Discov. 2018 Sep;8(9):1176-1193.

• 溶解性： Soluble  in  DMSO

• 保存条件： -20°C

• 配置溶液浓度参考：
  

  	1mg	5mg	10mg
  1 mM	2.022 ml	10.109 ml	20.217 ml
  5 mM	0.404 ml	2.022 ml	4.043 ml
  10 mM	0.202 ml	1.011 ml	2.022 ml
  50 mM	0.04 ml	0.202 ml	0.404 ml

• 注意：部分产品我司仅能提供部分信息，我司不保证所提供信息的权威性，仅供客户参考交流研究之用。

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本计算器可帮助您计算出特定溶液中溶质的质量、溶液浓度和体积之间的关系，公式为：

质量 (mg) = 浓度 (mM) x 体积 (mL) x 分子摩尔量 (g/mol)

• pg ng μg mg g kg =
  fM pM nM μM mM M *
  nL μL mL L *