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- 文献和实验
- 技术资料
- CAS号:
97682-44-5
- 规格:
1mLx10mM(inDMSO)/5mg/10mg/25mg/50mg/100mg/200mg/500mg
| 规格: | 1mLx10mM(inDMSO) | 产品价格: | ¥214.0 |
|---|---|---|---|
| 规格: | 5mg | 产品价格: | ¥133.0 |
| 规格: | 10mg | 产品价格: | ¥172.0 |
| 规格: | 25mg | 产品价格: | ¥253.0 |
| 规格: | 50mg | 产品价格: | ¥430.0 |
| 规格: | 100mg | 产品价格: | ¥654.0 |
| 规格: | 200mg | 产品价格: | ¥1024.0 |
| 规格: | 500mg | 产品价格: | ¥2072.0 |
Product Introduction
Bioactivity
| 名称 | Irinotecan |
| 描述 | Irinotecan (CPT-11), a derivative of camptothecin, is an inhibitor of DNA topoisomerase I (Topo I). Irinotecan has antitumor activity by preventing DNA strand reattachment through binding to the Topo I complex, resulting in double-stranded DNA breaks and cell death. |
| 细胞实验 | Irinotecan is dissolved in DMSO and stored, and then diluted with appropriate medium before use[1]. To determine the effects of Irinotecan in combination with 5-FU, the MTT assay is used. Depending on the cell lines, 10,000 to 20,000 cells per well are seeded in 96-well plates and incubated for 24 h in complete medium. On day 2, cells are incubated in the absence or presence of Irinotecan for 30 min followed by 5-FU for 24 h. After another 24 h in complete medium without any additives, MTT reagent is added on day 4 to initiate the assay and the cells are incubated for an additional 4 h at 37°C. After removal of the medium and dissolving the crystals with acidified isopropanol, the samples are analyzed using an ELISA plate reader at 570 nm. The value at 650 nm is subtracted as background[1]. |
| 体外活性 | 方法:人乳腺癌细胞 MCF-7 用 Irinotecan (10-320 µg/mL) 处理 24-48 h,使用 trypan blue 检测细胞活力。 结果:Irinotecan 处理 24 h,10 µg/mL 时细胞活力降至 85.5%,160 µg/mL 时活力降至 58%。Irinotecan 处理 48 h,160 µg/mL 时活力降至 33%。[1] 方法:HCT116 p53+/+,hMLH1+、p53+/+,hMLH1- 和 p53-/-,hMLH1- 用 Irinotecan (4.5 µM) 处理 48 h,使用 Flow Cytometry 分析细胞周期情况。 结果:Irinotecan 处理在所有三种细胞系中诱导不同持续时间的 G2/M 停滞。在 p53+/+、hMLH1+ 细胞系中维持阻滞至少 12 天。在治疗开始后的 6-9 天内,p53+/+、hMLH1- 细胞系中的阻滞缓慢释放,表明 hMLH1 分子的状态可能间接或直接影响 G2/M 阻滞的维持。在 p53-/- 细胞系中,G2/M 阻滞在治疗开始后 4 天内就已经终止。[2] |
| 体内活性 | 方法:为检测体内抗肿瘤活性,将 Irinotecan (40 mg/kg) 腹腔注射给 MLL 重排 ALL 异种移植物的 NSG 小鼠模型,每周三次,持续四周。 结果:Irinotecan 在体内有效抑制 MLL 重排 ALL 的体内生长。[3] 方法:为检测体内抗肿瘤活性,将 Irinotecan (10 mg/kg 每四天一次,给药四次;或 40 mg/kg 每四天一次,给药六次) 腹腔注射给携带五种 CRC 异种移植瘤的 swiss nu/nu 小鼠。 结果:在低剂量 Irinotecan 下,五个异种移植物中的四个对 Irinotecan 有反应,生长延迟长达 10 天。在高剂量 Irinotecan 下,五个异种移植物显示出可变但显著的反应。[4] |
| 存储条件 | Powder: -20°C for 3 years | In solvent: -80°C for 1 year Shipping with blue ice/Shipping at ambient temperature. |
| 溶解度 | DMSO : 11 mg/mL (18.75 mM), Sonication is recommended. 10% DMSO+40% PEG300+5% Tween 80+45% Saline : 3.2 mg/mL (5.45 mM), Solution. |
| 关键字 | Topoisomerase | Topo I | Irinotecan | Inhibitor | inhibit | CPT11 | CPT 11 | Autophagy |
| 相关产品 | Guanidine hydrochloride | Naringin | Enzalutamide | Aceglutamide | Alginic acid | Cysteamine hydrochloride | Hemin | Hydroxychloroquine | Sildenafil citrate | Stavudine | Tamoxifen | Paeonol |
| 相关库 | Inhibitor Library | Anti-Cancer Active Compound Library | Anti-Cancer Approved Drug Library | Bioactive Compound Library | Bioactive Compounds Library Max | Alkaloid Natural Product Library | Anti-Aging Compound Library | Anti-Tumor Natural Product Library | FDA-Approved Drug Library | Drug Repurposing Compound Library | Anti-Cancer Clinical Compound Library | Anti-Cancer Drug Library |
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文献和实验C18 H44 O,麦角甾 -5, 7, 22-三烯 -3β -醇, 24s-甲基胆甾 -5, 7, 22-三烯 -3β -醇。含于酵母、麦角、香蕈等中的甾醇。是重要的维生素 D原之一,经紫外线作用成为麦角钙化醇( ergocalciferol,维生素 D2 )。易溶于热醇、醚、氯仿中,与毛地黄皂苷形成分子化合物。
C27 H44 O,胆甾 -5, 7-二烯 -3β -醇。甾醇的一种。在生物体中以胆甾醇的形态少量存在着。 是维生素 D原的一种。由紫外线照射可转化成维生素 D3 。曾认为是由胆甾醇生物合成的,但现在证明是胆甾醇的生物合成的前体物质。虽然生成毛地黄皂苷化物( digitonide)但与甾醇毛地黄皂苷化物相比,其溶解度稍高。
Lipoprotein Isolation - First week
bromide is added to the hemolymph to form a 44 % solution. This is over layered with phosphate buffered saline (PBS), and centrifuged to form a density gradient. Eventually, all proteins float or sink to the zone that corresponds to their density. Having
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