Tegaserod maleate (Synonyms:马来酸替加色罗; SDZ-HTF-919; HTF-919)
目录号 : KM8710 CAS No. : 189188-57-6 纯度 : 98%

Tegaserod maleate 是选择性的、5-HT4 受体的部分激动剂和 5-HT2B 受体的拮抗剂。Tegaserod maleate 在胃肠道中表现出促进的作用。

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生物活性

Tegaserod maleate is a selective 5-HT4 receptor partial agonist and a 5-HT2B receptor antagonist. Tegaserod maleate exhibits a promotile effect throughout the gastrointestinal (GI) tract.

体外研究

Tegaserod was metabolized in human liver microsomes to O-desmethyl tegaserod at a low rate.
Tegaserod had significant binding affinity for human recombinant 5-HT2A, 5-HT2B and 5-HT2C receptors (pKi=7.5, 8.4 and 7.0, respectively).
Tegaserod (0.1-3 μM) inhibits 5-HT-mediated contraction of the rat isolated stomach fundus potently (pA2=8.3), consistent with 5-HT2B receptor antagonist activity.

体内研究

Tegaserod increases the amplitude of excitatory postsynaptic currents mediated by nicotinic acetylcholine receptors which may contribute to the prokinetic effects by facilitating excitatory neurotransmission in mice.
Tegaserod (0.1 mg/kg) significantly accelerates the gastric emptying rate of glucose in db/db mice, reducing the fraction of the meal remaining in the stomach at 30 min by 80%.
Tegaserod (5, 10, 50, 100 μg/mL) promotes hindlimb motor function at 6 weeks after spinal cord injury compared to the control group receiving vehicle only.

Animal Model: Female C57BLKS/J db/db mice.
Dosage: 0.1, 0.5, 1.0, 2.0 mg/kg.
Administration: IP 15 min prior to gastric loading.
Result: Produced a dramatic decrease in the fraction of the meal remaining in the stomach for doses as low as 0.1 mg/kg (0.1 mg/kg).
Accelerated gastric emptying, with a reduction of nearly 80% in the fraction remaining at 30 min (P < 0.0001) (0.1 mg/kg).
Induced a significant decrease in the gastric emptying rate as the amount of the meal remaining at 30 min was significantly greater (2.0 mg/kg).
Resulted in inhibition of tegaserod-induced increased gastric emptying (0.1 mg/kg).
Animal Model: Three- to four-month-old female C57BL/6J mice.
Dosage: 5, 10, 50, 100 μg/mL.
Administration: Alzet pumps into non-injured spinal cords.
Result: Showed a less intense astrogliosis within and in the vicinity of the compression lesion site when compared to vehicle-only-treated mice.
Showed a smaller lesion area when compared to vehicle-onlytreated mice.
Showed a higher staining intensity of 5-HT-immunoreactive axons 1 mm rostral, but not caudal to the lesion center as determined in cross-sections and quantification by ImageJ analysis.
分子式
C20H27N5O5
分子量
417.46
CAS号
189188-57-6
中文名称
马来酸替加色罗
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 : ≥ 35 mg/mL (83.84 mM)

H2O : 1 mg/mL (2.40 mM; Need ultrasonic)

* "≥" means soluble, but saturation unknown.

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.3954 mL 11.9772 mL 23.9544 mL
5 mM 0.4791 mL 2.3954 mL 4.7909 mL
10 mM 0.2395 mL 1.1977 mL 2.3954 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 (5.99 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.99 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% corn oil

    Solubility: ≥ 2.5 mg/mL (5.99 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (5.99 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 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

临床试验
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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