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NSC 74859
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
NSC 74859图片
CAS NO:501919-59-1
包装与价格:
包装价格(元)
5mg电议
10mg电议
50mg电议
100mg电议
200mg电议
500mg电议

产品名称
S3I-201
产品介绍
NSC 74859 (S3I-201) 是选择性的Stat3抑制剂,IC50为 86 μM。
生物活性

NSC 74859 (S3I-201) is a selectiveStat3inhibitor with anIC50of 86 μM[1].

IC50& Target[1]

STAT3

86 μM (IC50)

体外研究
(In Vitro)

NSC 74859 (S3I-201) preferentially inhibits Stat3 DNA-binding activity over that of Stat1 (IC50values, Stat3oStat3, 86±33 μM; Stat1oStat3, 160±43 μM; and Stat1oStat1, >300 μM) and inhibits that of Stat5 with IC50of 166±17 μM). NSC 74859 significantly reduces viable cell numbers and inhibits growth of transformed mouse fibroblasts NIH 3T3/v-Src and breast carcinoma cell lines (MDA-MB-231, MDA-MB-435, and MDA-MB-468). At 30-100 μM, NSC 74859 induces significant apoptosis in the representative human breast carcinoma cell line MDA-MB-435 and NIH 3T3/v-Src, both of which harbor constitutively active Stat3. The breast carcinoma MDA-MB-435 cell line is more sensitive to 30 μM NSC 74859. By contrast, the human breast cancer MDA-MB-453 cells and the normal mouse fibroblasts (NIH 3T3), which do not contain abnormal Stat3 activity, are less sensitive to NSC 74859 at 100 μM or less. At 300 μM or higher, NSC 74859 induced general, nonspecific cytotoxicity independent of Stat3 activation status[1]. Huh-7 cells do not express β2SP or TBGFR2 and are sensitive to STAT3 inhibition, with an IC50of 100 μM for NSC 74859, regardless of CD133+status. The IC50of NSC 74859 is 150 μM for Huh-7 and SNU-398 cells, 15 μM for SNU-475 cells and 200 μM for SNU-182 cells. NSC 74859 inhibits breast carcinoma MDA-MB-435, MDA-MB-453 and MDA-MB-231 cell lines with an IC50close to 100 μM[2].

体内研究
(In Vivo)

Human breast (MDA-MB-231) tumor-bearing mice are given an i.v. injection of NSC 74859 (S3I-201) or vehicle every 2 or every 3 days for 2 weeks, and tumor measurements are taken every 2-3 days. Compared with control (vehicle-treated) tumors, which continued to grow, human breast tumors in mice that received S3I-201 display strong growth inhibition. Continued evaluation of treated mice on termination of treatment shows no resumption of tumor growth, suggesting potentially a long-lasting effect of S3I-201 on tumor growth[1]. Compared with vehicle-treated control tumors (n=15), which continued to grow, S3I-201 treatment of somatotroph tumor xenografts (n=15) significantly attenuated tumor growth for the duration of the experiment. Tumors derived from NSC 74859-treated rats are significantly smaller than those from the untreated group (220±16 mm3vs. 287±16 mm3, P<0.01) as early as 5 days after NSC 74859 injection. Fifteen days after treatments, the average tumor volume of NSC 74859-treated rats is 64% of that of controls (449±40 mm3vs. 708±83 mm3, P<0.01). Rats are sacrificed and tumors are harvested 15 days after treatment initiation. The average tumor weight of NSC 74859-treated rats is 78±8 mg, while tumors derived from control rats weighed 114±13 mg (32% reduction; P<0.05)[3].

分子量

365.36

性状

Solid

Formula

C16H15NO7S

CAS 号

501919-59-1

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder-20°C3 years
4°C2 years

*该产品在溶液状态不稳定,建议您现用现配,即刻使用。

溶解性数据
In Vitro: 

DMSO : 100 mg/mL(273.70 mM;Need ultrasonic)

配制储备液
浓度溶剂体积质量1 mg5 mg10 mg
1 mM2.7370 mL13.6851 mL27.3703 mL
5 mM0.5474 mL2.7370 mL5.4741 mL
10 mM0.2737 mL1.3685 mL2.7370 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;该产品在溶液状态不稳定,建议您现用现配,即刻使用

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: ≥ 7.5 mg/mL (20.53 mM); Clear solution

    此方案可获得 ≥ 7.5 mg/mL (20.53 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 75.0 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-CDin saline)

    Solubility: ≥ 7.5 mg/mL (20.53 mM); Clear solution

    此方案可获得 ≥ 7.5 mg/mL (20.53 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 75.0 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 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: ≥ 7.5 mg/mL (20.53 mM); Clear solution

    此方案可获得 ≥ 7.5 mg/mL (20.53 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 75.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

  • 4.

    请依序添加每种溶剂: 5% DMSO    40%PEG300   5%Tween-80   50% saline

    Solubility: ≥ 2.5 mg/mL (6.84 mM); Clear solution

  • 5.

    请依序添加每种溶剂: 5% DMSO    95% (20%SBE-β-CDin saline)

    Solubility: ≥ 2.5 mg/mL (6.84 mM); Clear solution

*以上所有助溶剂都可在本网站选购。