SCH529074 是一种具有口服活性的p53激活剂。SCH529074 与 p53 DBD 特异性结合并与构象相关,其Ki值为 1-2 μM。SCH529074 恢复突变的 p53 功能,并阻断 HDM2 介导的野生型 p53 泛素化。SCH529074 可用于非小细胞肺癌 NSCLC 的研究。
生物活性 | SCH529074 is a potent and orally activep53activator. SCH529074 binds specifically and conformation-dependently to p53 DBD ( DNA binding domain) with aKiof 1-2 μM in a saturable manner. SCH529074 restores mutant p53 function and interrupts HDM2-mediated ubiquitination of wild Type p53. SCH529074 can be used for the study of non-small-cell lung carcinoma (NSCLC)[1][2]. |
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体外研究 (In Vitro) | SCH529074 (2-4 μM; 24 hours) causes significant reduction in cell viability, it causes a significant decreasing to 20-25% in p53 mutant cells (H157, H1975 and H322) and to 68% in the p53 WT cell line A549 at 4 μM[1]. SCH 529074 (2 and 4 μM) induces NSCLC cells (H157, A549, HCT116 and HCT116 p53-/-) arrested at the G0/G1 phase (59%; 72%; 66%; and 57%) compared with the control cells following low concentration (2 μM) of treatment[1]. SCH 529074 (2-4 μM; 24 hours) induces the early and late apoptotic rates at 2 μM in H1975 cells. In H157 cells, SCH 529074 treatment induces early and late apoptosis. Similarly, in A549 cells, 2 and 4 μM of SCH 529074 significantly increased early and late apoptosis. In line with that, in colon cancer cells, in HCT116 cells, 4 μM of SCH 529074 causes a significant induction of early and late apoptosis, and 4 μM of SCH 529074 significantly induces early apoptosis in HCT116 p53-/-cells[1]. SCH 529074 (2-6 μM; 24 hours) increases the protein levels of PUMA and p21 revealed to 4 or 6 μM in the cancer cell lines regardless of their p53 status[1].
Cell Viability Assay[1] Cell Line: | p53 mutant cells (H157, H1975 and H322) and p53 WT cell line A549 | Concentration: | 2 μM; 4 μM | Incubation Time: | 24 hours | Result: | Inhibited cancer WT and mutant cell viability. |
Cell Cycle Analysis[1] Cell Line: | H1975, H157, A549, HCT116, HCT116 p53-/-cells | Concentration: | 2 μM, 4 μM, 6 μM | Incubation Time: | 24 hours | Result: | Induced apoptosis in all assessed NSCLC cell lines irrespective of their p53 mutational status. |
Western Blot Analysis[1] Cell Line: | H1975, H322, H157, A549, HCT116, HCT116 p53-/- | Concentration: | 2 μM, 4 μM, 6 μM | Incubation Time: | 24 hours | Result: | Increased PUMA and p21 protein expression. |
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体内研究 (In Vivo) | SCH529074 (oral administration; 30 or 50 mg/kg; twice daily; 4 weeks; started on day 3 until day 31) causes 79 and 43% reduction of tumor growth at 50 and 30 mg/kg doses, respectively. the degree of tumor inhibition correlates with the plasma exposure of the compound (0.26–0.55 μm at 30 mg/kg and 0.39-0.79 μm at 50 mg/kg, 2-12 h post final dosing) in human DLD-1 colorectal cancer xenograft[2].
Animal Model: | Female nude mice, 5–7 weeks of age, received subcutaneous inoculation of DLD-1 human colorectal carcinoma cells[2] | Dosage: | 30 or 50 mg/kg | Administration: | Oral administration; twice daily; 4 weeks; started on day 3 until day 31 | Result: | Inhibited tumor growth |
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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 |
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溶解性数据 | In Vitro: DMSO : 20 mg/mL(35.49 mM;Need ultrasonic) 配制储备液 1 mM | 1.7744 mL | 8.8722 mL | 17.7443 mL | 5 mM | 0.3549 mL | 1.7744 mL | 3.5489 mL | 10 mM | 0.1774 mL | 0.8872 mL | 1.7744 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。-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: ≥ 1 mg/mL (1.77 mM); Clear solution
此方案可获得 ≥ 1 mg/mL (1.77 mM,饱和度未知) 的澄清溶液。 以 1 mL 工作液为例,取 100 μL 10.0 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: ≥ 1 mg/mL (1.77 mM); Clear solution
此方案可获得 ≥ 1 mg/mL (1.77 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 10.0 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。 |