Tolcapone (Synonyms:托卡朋; Ro 40-7592)
目录号 : KM15868 CAS No. : 134308-13-7 纯度 : 98%

Tolcapone (Ro 40-7592) 是一种选择性,有效的,具有口服活性的外周和中枢 COMT 抑制剂,在肝脏中对 COMT 的 IC50 为 773 nM。Tolcapone 还是一种 α-syn 和 Aβ42 寡聚和原纤维形成的有效抑制剂。Tolcapone 诱导氧化应激导致神经母细胞瘤细胞凋亡(apoptosis) 和抑制肿瘤生长。

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生物活性

Tolcapone (Ro 40-7592) is a selective, orally active and powerful mixed (peripheral and central) COMT inhibitor with an IC50 of 773 nM in the liver. Tolcapone is also a potent inhibitor of α-syn and Aβ42 oligomerization and fibrillogenesis. Tolcapone induces oxidative stress leading to apoptosis and inhibition of tumor growth in neuroblastoma.

体外研究

Tolcapone is cytotoxic to neuroblastoma (NB) cells with IC50 values ranging from 32.27 μM for SMS-KCNR cells to 219.8 μM for MGT9-102-08 primary cells.
Tolcapone (25, 50,75, 100 μM) treatment activates downstream apoptotic events in NB cells. Tolcapone induces caspase-mediated apoptosis in neuroblastoma.

Cell Viability Assay

Cell Line: BE(2)-C, SMS-KCNR, CHLA-90, SH-SY5Y, MGT-015-08 and MGT9-102-08
Concentration: 1.5625~400 μM
Incubation Time: 48 hours
Result: IC50s of 32.27, 72.31, 80.29, 109.4, 174.6, 219.8 μM for SMS-KCNR, SH-SY5Y, BE(2)-C, CHLA-90, MGT-015-08 and MGT9-102-08, respectively.

Cell Viability Assay

Cell Line: NB cell lines: BE(2)-C, SMS-KCNR, CHLA-90, SH-SY5Y, MGT-015-08 and MGT9-102-08
Concentration: 25, 50, 75, 100 μM
Incubation Time:
Result: A dose-dependent increase in cleaved caspase-3 and cleaved PARP protein in all six NB cell lines and a subsequent decrease in whole caspase-3 and whole PARP protein.
体内研究

Tolcapone (125 mg/kg; orally) inhibits tumor growth and prolongs survival in vivo. There are no adverse events or differences in weight or behavior noted in the mice.

Animal Model: 4-week-old female nude mice (nu/nu) bearing SMS‐KCNR xenograft models
Dosage: 125 mg/kg
Administration: Treated orally every 24 h for 35 days
Result: Decreased tumor volume compared to control.
Resulted in a smaller average tumor of 490±310 mm compared to control tumors of 1100±450 mm.
分子式
C14H11NO5
分子量
273.24
CAS号
134308-13-7
中文名称
托卡朋
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMSO : 100 mg/mL (365.98 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 3.6598 mL 18.2989 mL 36.5979 mL
5 mM 0.7320 mL 3.6598 mL 7.3196 mL
10 mM 0.3660 mL 1.8299 mL 3.6598 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;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, 6 months; -20°C, 1 month。-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。

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: ≥ 2.5 mg/mL (9.15 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (9.15 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 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。

  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.5 mg/mL (9.15 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (9.15 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

临床试验
科研文献
The molarity calculator equation
Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)
The dilution calculator equation
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2
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