Tecalcet Hydrochloride (R 568 Hydrochloride) 是一个口服有效的拟钙剂,变构正调控钙敏感受体 (CaSR)。Tecalcet Hydrochloride (R 568 Hydrochloride) 可提高激活细胞外Ca2+的敏感性。
生物活性 | Tecalcet Hydrochloride (R 568 Hydrochloride), an orally active calcimimetic compound, allosterically and positively modulates thecalcium-sensing receptor (CaSR). Tecalcet Hydrochloride (R 568 Hydrochloride) increases the sensitivity to activation by extracellular Ca2+[1][2][3]. |
体外研究 (In Vitro) | Tecalcet (NPS 568, 0.1-100 μM) increase [Ca2+]i in a concentrationdependent and stereoselective manner[3]. Tecalcet (NPS 568, 0.1-100 nM) shiftes the concentration-response curve for extracellular Ca2+to the left without affecting the maximal response and, thereby, decreases
the EC50value for extracellular Ca21 to 0.61±0.04 mM[3].
|
体内研究 (In Vivo) | Tecalcet (1.5 and 15 mg/kg, orally, twice daily for 4 days) inhibits PT cell proliferation in rats with renal insufficiency[1].
Animal Model: | 10-wk-old Male Sprague-Dawley rats weighing 310-350 g[1]. | Dosage: | 1.5 and 15 mg/kg. | Administration: | Orally twice daily for 4 days. | Result: | Did not significantly change serum 1,25 (OH)2D3levels. In contrast, serum PTH levels were reduced by in a dose-dependent manner. Clearly reduced the number of BrdU-positive PT cells by 20% at a low dose (1.5 mg/kg body wt), and by 50% at a high dose (15 mg/kg body wt), indicating an antiproliferative effect on PT cells. Reduced PT cell volume in a dose-dependent manner.
|
|
分子量 | |
性状 | |
Formula | |
CAS 号 | |
运输条件 | Room temperature in continental US; may vary elsewhere. |
储存方式 | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
溶解性数据 | In Vitro: DMSO : 50 mg/mL(146.93 mM;Need ultrasonic) 配制储备液 1 mM | 2.9387 mL | 14.6933 mL | 29.3867 mL | 5 mM | 0.5877 mL | 2.9387 mL | 5.8773 mL | 10 mM | 0.2939 mL | 1.4693 mL | 2.9387 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℃, 6 months; -20℃, 1 month (sealed storage, away from moisture)。-80℃ 储存时,请在 6 个月内使用,-20℃ 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 (7.35 mM); Clear solution
此方案可获得 ≥ 2.5 mg/mL (7.35 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-CDin saline) Solubility: ≥ 2.5 mg/mL (7.35 mM); Clear solution
此方案可获得 ≥ 2.5 mg/mL (7.35 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 μL20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。 3. 请依序添加每种溶剂: 10% DMSO 90%corn oil Solubility: 2.5 mg/mL (7.35 mM); Suspended solution; Need ultrasonic
此方案可获得 2.5 mg/mL (7.35 mM) 的均匀悬浊液,悬浊液可用于口服和腹腔注射。 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。 *以上所有助溶剂都可在本网站选购。
|