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- Solarbio
- 北京
- IK00901
- 2025年07月23日
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- 详细信息
- 技术资料
- 保存条件：
Stroe at -20℃，6 months.
- 保质期：
Stroe at -20℃，6 months.
- 英文名：
K858(10mM in DMSO,Sterile）
- 库存：
现询
- 供应商：
北京索莱宝科技有限公司
- CAS号：
72926-24-0
- 规格：
1ml
| 基本信息 | |
| CAS | No.72926-24-0 |
| 中文名称 | N-(4-乙酰基-4,5-二氢-5-甲基-5-苯基-1,3,4-噻二唑-2-基)乙酰胺(10mM in DMSO,无菌） |
| 英文名称 | K858(10mM in DMSO,Sterile） |
| 分子式 | C13H15N3O2S |
| 分子量 | 277.34 |
| 溶解性 | 请根据自己的实验要求使用。 |
| 外观(性状) | 无菌溶液 |
| 储存条件 | Stroe at -20℃，6 months. |
| 靶点 | Eg5(Kinesin) |
| 通路 | Cytoskeleton |
| 背景说明 | K858是一种 ATP 非竞争性的驱动蛋白 Eg5 抑制剂。 |
| 生物活性 | K858 Racemic is an ATP-uncompetitive inhibitor of kinesin Eg5 with an IC50 of 1.3 μM.[1-2] |
| In Vitro | K858 Racemic is an ATP-uncompetitive inhibitor of Eg5 with an IC50 of 1.3 μM. K858 does not inhibit the ATPase activity of the mitotic kinesins CENP-E and MKLP1， or the conventional kinesin heavy chain even at 200 μM. K858 induces mitotic arrest and growth inhibition via the activation of the Mad2-mediated spindle checkpoint. K858 (5 μM) induces mitotic cell death in cancer cells but not in normal cells[1]. K858 (1， 10， 100 μM) inhibits the MCF7， BT474 and SKBR3 cell lines， and only at 10 and 100 μM suppresses MDA-MB231 cell line after treatment for 24 h. K858 incereases Bax/Bcl2 RNA ratio and survivin in the four cell lines. Furthermore， the up-regulation of survivin is totally reversed by wortmannin (phosphoinositide 3-kinase AKT) in MCF7 cells[2]. |
| 细胞实验 | K858 (50， 150 mg/kg， p.o.) shows antitumor activity in an A2780 ovarian cancer xenograft model， also inhibits tumor grwoth in a HCT116 colon cancer xenograft model via 100 mg/kg twice a day orally for 5 days. K858 (100 mg/kg， p.o.， qd ×5) displays no neurotoxic side effects in mice[1]. |
| 细胞实验 | To determine cytotoxicity， sulforhodamine B colorimetric assay is performed: 1.5 × 104 cells are plated on 96 well plates， grown for 24 h (h) and treated with different concentrations of K858 (1 μM， 10 μM， 100 μM) for 24 and 48 h. Cells are then fixed with 50 % trichloroacetic acid for 1 h at 4°C and stained for 30 min at room temperature (RT) with 0.4 % sulforhodamine B in 1 % acetic acid. Excess dye is removed by washing four times with 1 % acetic acid. Protein bound dye is dissolved in 10 mM TRIS pH 10， and optical density (OD) is determined at 510 nm using a microplate reader[2]. |
| 动物实验 | A2780 cells (5 × 106 cells) are inoculated s.c. into BALB/cAJcl-nu mice. K858 is administered orally twice daily on days 0 to 4， and 7 to 11 at 150 and 50 mg/kg. Doses and schedules are determined by the tolerability studies performed in advance. Vehicle (0.5% methylcellulose 400) is administered orally as a control twice daily on days 0 to 4， and 7 to 11. Paclitaxel is administered i.v. on day 0 at 25 mg/kg. Carboplatin is administered i.v. on day 0 at 60 mg/kg. Drug efficacy is expressed as the ratio of the mean experimental V/V0 value to that of the control group [treated versus control (T/C) ratio]， where V is the tumor volume at the day of evaluation and V0 is the tumor volume at the day of the initial treatment with the drug. Statistical analysis is performed using the nonparametric rank-sum test[1]. |
| 数据来源文献 | [1]. Nakai R， et al. K858， a novel inhibitor of mitotic kinesin Eg5 and antitumor agent， induces cell death in cancer cells. Cancer Res. 2009 May 1;69(9):3901-9. [2]. De Iuliis F， et al. The kinesin Eg5 inhibitor K858 induces apoptosis but also survivin-related chemoresistance in breast cancer cells. Invest New Drugs. 2016 Aug;34(4):399-406. |
| 单位 | 瓶 |
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IK00901 N-(4-乙酰基-4,5-二氢-5-甲基-5-苯基-1,3,4-噻二唑-2-基)乙酰胺(10mM in DMSO,无菌） 细胞骨架 索莱宝
￥1460
