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• 产品描述： OTSSP167 (OTS167) hydrochloride is a highly potent and ATP-competitive MELK inhibitor with IC50 value of 0.41 nM.

• 靶点： IC50: 0.41 nM (MELK);MELK

• 体外研究：
  OTSSP167 inhibits the growth of A549 (lung), T47D (breast), DU4475 (breast), 22Rv1 (prostate) and HT1197 (bladder) cancer cells with IC50 values of 6.7, 4.3, 2.3, 6.0 and 97 nM, respectively. OTSSP167 can abrogate the mitotic checkpoint, disrupt MCC and MCC-APC/C interaction in MCF7 cells. OTSSP167 causes GFP-MELK localization to cell cortex in prometaphase cells. OTSSP167 is a MELK selective inhibitor, exhibits a strong in vitro activity, conferring an IC50 of 0.41 nM

• 体内研究：
  OTSSP167 (20 mg/kg, i.v.) results in tumor growth inhibition (TGI) of 73% in xenograft mouse model; OTSSP167 (1, 5, and 10 mg/kg, p.o.) reveals TGI of 51, 91, and 108%, respectively. OTSSP167 (20 mg/kg, p.o.) shows no tumor growth suppressive effect on PC-14 xenografts

• 参考文献：
  1. Chung S, Suzuki H, Miyamoto T, et al. Development of an orally-administrative MELK-targeting inhibitor that suppresses the growth of various types of human cancer. Oncotarget. 2012 Dec 21. 2. Ji W, et al. OTSSP167 Abrogates Mitotic Checkpoint through Inhibiting Multiple Mitotic Kinases. PLoS One. 2016 Apr 15;11(4):e0153518. 3. Cho YS, et al. The crystal structure of MPK38 in complex with OTSSP167, an orally administrative MELK selective inhibitor. Biochem Biophys Res Commun. 2014 Apr 25;447(1):7-11. 4. Jurmeister S, et al. Identification of potential therapeutic targets in prostate cancer through a cross-species approach. EMBO Mol Med. 2018 Feb 5. pii: e8274. 5. Meel MH, et al. MELK inhibition in Diffuse Intrinsic Pontine Glioma. Clin Cancer Res. 2018 Jul 30. pii: clincanres.0924.201

• 溶解性： Soluble  in  DMSO、H2O

• 保存条件： -20℃

• 配置溶液浓度参考：
  

  	1mg	5mg	10mg
  1 mM	1.909 ml	9.544 ml	19.088 ml
  5 mM	0.382 ml	1.909 ml	3.818 ml
  10 mM	0.191 ml	0.954 ml	1.909 ml
  50 mM	0.038 ml	0.191 ml	0.382 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 *