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- 详细信息
- 技术资料
- 库存:
28
- 英文名:
Silvestrol
- CAS号:
697235-38-4
- 供应商:
上海莼试
- 保存条件:
Store at -20°C
- 规格:
10 mM * 1 mL in DMSO 1mg 2mg
本产品仅供科学实验研究使用! 不能用于临床或动物诊断!
化学性质:

Silvestrol规格:10 mM * 1 mL in DMSO 1mg 2mg
CAS:697235-38-4
别名:(-)-Silvestrol
化学名:methyl (1R,2R,3S,3aR,8bS)-6-[[(3R,6R)-6-[(1R)-1,2-dihydroxyethyl]-3-methoxy-1,4-dioxan-2-yl]oxy]-1,8b-dihydroxy-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3-dihydro-1H-cyclopenta[b][1]benzofuran-2-carboxylate
分子式:C34H38O13

分子量:654.66
溶解度:Soluble in DMSO
储存条件:Store at -20°C
General tips:For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping Condition: Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request
产品描述:

Silvestrol inhibited protein synthesis in MDA-MB-231 breast and PC-3 prostate cancer cell lines with IC50 ~60 nM following a 1 h exposure) [1]. Silvestrol inhibited cell growth with an IC50 of 12.5-86 nM in four different HCC cell lines [3].Silvestrol, a member of flavagline family of natural products from the genus of Aglaia exhibiting anti-cancer activity in vitro and in vivo and inhibiting translation initiation, was shown to be capable of modulating chemosensitivity in a mechanism-based mouse model.Preclinical study: A previous study demonstrated that silvestrol showed antileukemia activity at nanomolar concentrations in both FLT3-wt overexpressing (THP-1) and FLT3-ITD (MV4-11) expressing AML cell lines (IC50 = 3.8 and 2.7 nM, respectively) and patients' primary blasts [IC50 = ~12 nM (FLT3-wt) and ~5 nM (FLT3-ITD)]. Moreover, silvestrol was orved to efficiently inhibite FLT3 translation resulting in a decrese of FLT3 protein expression by 80–90%. Animal study indicated that the median survival of silvestrol-treated mice significantly increased (silvestrol-treated vs vehicle-treated = 63 vs 29 days postengraftment) [2]. Another study showed that silvestrol could increase the activities of apoptosis and caspase 3/7. In vivo, the antitumor effect was found with 0.4 mg/kg silvestrol, and the survival of tumor-bearing mice was improved with a median survival time of 42 and 28 days in the silvestrol and control groups, respectively [3].Clinical study: Currently, there is no clinical data about the anti-cancer efficacy of silvestrol. A grant application proposeed to pursue a Phase I clinical trial to assess the safety, maximum tolerated dose, pharmacokinetic and pharmacodynamic properties, and preliminary efficacy of silvestrol in patients with relapsed, refractory Chronic lymphocytic leukemia (Pre-Clinical and Clinical Development of Silvestrol in Chronic Lymphocytic).
使用方法:

1. 常用筛选浓度
注意:用来筛选稳转株的工作浓度需要根据细胞类型,培养基,生长条件和细胞代谢率而变化,推荐使用浓度为50-1000μg/mL。对于第一次使用的实验体系建议通过建立杀灭曲线(kill curve),即剂量反应性曲线,来确定最佳筛选浓度。
一般而言,哺乳动物细胞50-500μg/mL;细菌/植物细胞20-200μg/mL;真菌300-1000μg/mL。
2. 杀灭曲线的建立
注意:为了筛选得到稳定表达目的蛋白的细胞株,需要确定能够杀死未转染宿主细胞的抗生素浓度,可通过建立杀灭曲线(剂量反应曲线)来实现,至少选择5个浓度。
1) 第一天:未转化的细胞按照20-25%的细胞密度铺在合适的培养板上,37℃,CO2培养过夜;注:对于需要更高密度来检测活力的细胞,可增加接种量。
2) 根据细胞类型,设定合适范围内的浓度梯度。以哺乳动物细胞为例,可设定50,100,250,500,750,1000μg/mL。先用去离子水或者PBS buffer按照1:10的比例将母液稀释到5 mg/ml,然后按照下表稀释到相应浓度的工作液。
3) 第二天:替换旧的培养基,换用新鲜配制的含有相应浓度药物的培养基。每个浓度做三个平行孔。
4) 接下来每3-4天更换新的含药物培养基。
5) 按照固定的周期(如每2天)进行活细胞计数来确定阻止未转染细胞生长的恰当浓度。选择在理想的天数(通常是7-10天)内能够杀死绝大多数细胞的浓度为稳定转染细胞筛选用的工作浓度。
3. 稳定转染细胞的筛选
1) 转染48h后,用含有适当浓度的潮霉素B筛选培养基来传代细胞(直接传代或者稀释后传代)。
注意:细胞处于活跃分裂状态时抗生素的杀伤。则当细胞过于稠密,其效率会降低。为了得到较好的筛选效果,最好将细胞稀释至丰度不超过25%
2) 每隔3-4天更换含有药物的筛选培养液。
3) 筛选7天后观察并评估细胞克隆(集落)的形成情况。集落的形成可能还需要一周或者更多的时间,这取决于宿主细胞类型,转染,以及筛选效果。
4) 挑取并转移5-10个抗性克隆于35mm细胞培养板,继续用含药物的筛选培养液维持培养7天。
5) 之后更换正常培养基培养即可。
公司正在出售的产品:

蛋白酶抑制剂混合物实验步骤:

(1)实验开始前将RNA提取液于65℃水浴锅中预热,离心管中加入ME(巯基乙醇),(10mL加80ul,50mL中加入300ul)
(2)取约0.8g菌丝体(液体培养获得的菌丝用真空抽滤即可!固体培养就更好说了),在液氮中迅速磨成精细粉末,装入50mL离心管,按1g材料8mL的量加入预热的RNA提取液,颠倒混匀
(3)65℃水浴3-10 min,期间混匀2-3次
(4)加入等体积的酚(注意是酸酚pH4.5)::yi戊醇(25:24:1)抽提(10,000rpm,4℃,5 min)
(5)取上清,等体积的yi戊醇(24:1)抽提(10,000rpm,4℃,5 min)
(6)加入1/4V体积10M LiCl溶液,4℃放置6h以上(或过夜)
(7)10,000rpm,4℃离心20min
(8)弃上清,用500ul SSTE溶解沉淀
(9)酚::yi戊醇(25:24:1)抽提两次,:yi戊醇(24:1)抽提1次(10,000rpm,4℃,5min)
(10)加2V体积的无水乙醇,在-70℃冰箱沉淀30min以上
(11)12,000rpm,4℃离心20 min
(12)弃上清.沉淀用70%酒精漂洗一次,干燥
(13)加200ul的DEPC处理水溶解
(14)用非变性琼脂糖凝胶电泳和紫外分光光度计扫描检测RNA的质量(在抽提过程中,若蛋白质含量或其它的杂质还较多,可以增加抽提次数)
| 产品名称 | Silvestrol | 产品货号 | CS-01Y66099 |
| 规格 | 10 mM * 1 mL in DMSO 1mg 2mg | CAS号 | 697235-38-4 |
| 含量 | >98.00% | 分子式 | C34H38O13 |
| 分子量 | 654.66 | 用途 | 仅供科研研究使用 |

Silvestrol规格:10 mM * 1 mL in DMSO 1mg 2mg
CAS:697235-38-4
别名:(-)-Silvestrol
化学名:methyl (1R,2R,3S,3aR,8bS)-6-[[(3R,6R)-6-[(1R)-1,2-dihydroxyethyl]-3-methoxy-1,4-dioxan-2-yl]oxy]-1,8b-dihydroxy-8-methoxy-3a-(4-methoxyphenyl)-3-phenyl-2,3-dihydro-1H-cyclopenta[b][1]benzofuran-2-carboxylate
分子式:C34H38O13

分子量:654.66
溶解度:Soluble in DMSO
储存条件:Store at -20°C
General tips:For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping Condition: Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request
产品描述:

Silvestrol inhibited protein synthesis in MDA-MB-231 breast and PC-3 prostate cancer cell lines with IC50 ~60 nM following a 1 h exposure) [1]. Silvestrol inhibited cell growth with an IC50 of 12.5-86 nM in four different HCC cell lines [3].Silvestrol, a member of flavagline family of natural products from the genus of Aglaia exhibiting anti-cancer activity in vitro and in vivo and inhibiting translation initiation, was shown to be capable of modulating chemosensitivity in a mechanism-based mouse model.Preclinical study: A previous study demonstrated that silvestrol showed antileukemia activity at nanomolar concentrations in both FLT3-wt overexpressing (THP-1) and FLT3-ITD (MV4-11) expressing AML cell lines (IC50 = 3.8 and 2.7 nM, respectively) and patients' primary blasts [IC50 = ~12 nM (FLT3-wt) and ~5 nM (FLT3-ITD)]. Moreover, silvestrol was orved to efficiently inhibite FLT3 translation resulting in a decrese of FLT3 protein expression by 80–90%. Animal study indicated that the median survival of silvestrol-treated mice significantly increased (silvestrol-treated vs vehicle-treated = 63 vs 29 days postengraftment) [2]. Another study showed that silvestrol could increase the activities of apoptosis and caspase 3/7. In vivo, the antitumor effect was found with 0.4 mg/kg silvestrol, and the survival of tumor-bearing mice was improved with a median survival time of 42 and 28 days in the silvestrol and control groups, respectively [3].Clinical study: Currently, there is no clinical data about the anti-cancer efficacy of silvestrol. A grant application proposeed to pursue a Phase I clinical trial to assess the safety, maximum tolerated dose, pharmacokinetic and pharmacodynamic properties, and preliminary efficacy of silvestrol in patients with relapsed, refractory Chronic lymphocytic leukemia (Pre-Clinical and Clinical Development of Silvestrol in Chronic Lymphocytic).
使用方法:

1. 常用筛选浓度
注意:用来筛选稳转株的工作浓度需要根据细胞类型,培养基,生长条件和细胞代谢率而变化,推荐使用浓度为50-1000μg/mL。对于第一次使用的实验体系建议通过建立杀灭曲线(kill curve),即剂量反应性曲线,来确定最佳筛选浓度。
一般而言,哺乳动物细胞50-500μg/mL;细菌/植物细胞20-200μg/mL;真菌300-1000μg/mL。
2. 杀灭曲线的建立
注意:为了筛选得到稳定表达目的蛋白的细胞株,需要确定能够杀死未转染宿主细胞的抗生素浓度,可通过建立杀灭曲线(剂量反应曲线)来实现,至少选择5个浓度。
1) 第一天:未转化的细胞按照20-25%的细胞密度铺在合适的培养板上,37℃,CO2培养过夜;注:对于需要更高密度来检测活力的细胞,可增加接种量。
2) 根据细胞类型,设定合适范围内的浓度梯度。以哺乳动物细胞为例,可设定50,100,250,500,750,1000μg/mL。先用去离子水或者PBS buffer按照1:10的比例将母液稀释到5 mg/ml,然后按照下表稀释到相应浓度的工作液。
3) 第二天:替换旧的培养基,换用新鲜配制的含有相应浓度药物的培养基。每个浓度做三个平行孔。
4) 接下来每3-4天更换新的含药物培养基。
5) 按照固定的周期(如每2天)进行活细胞计数来确定阻止未转染细胞生长的恰当浓度。选择在理想的天数(通常是7-10天)内能够杀死绝大多数细胞的浓度为稳定转染细胞筛选用的工作浓度。
3. 稳定转染细胞的筛选
1) 转染48h后,用含有适当浓度的潮霉素B筛选培养基来传代细胞(直接传代或者稀释后传代)。
注意:细胞处于活跃分裂状态时抗生素的杀伤。则当细胞过于稠密,其效率会降低。为了得到较好的筛选效果,最好将细胞稀释至丰度不超过25%
2) 每隔3-4天更换含有药物的筛选培养液。
3) 筛选7天后观察并评估细胞克隆(集落)的形成情况。集落的形成可能还需要一周或者更多的时间,这取决于宿主细胞类型,转染,以及筛选效果。
4) 挑取并转移5-10个抗性克隆于35mm细胞培养板,继续用含药物的筛选培养液维持培养7天。
5) 之后更换正常培养基培养即可。
公司正在出售的产品:

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| 细胞色素P450 IVF8封闭多肽 | GRAMD1C Antibody Blocking Peptide |
| 转录调节因子HOXD9封闭多肽 | GGT2 light chain Antibody Blocking Peptide |
| 重组人骨形态发生蛋白-7 (活性的, Tag free) | FAR1 Antibody Blocking Peptide |
| 转录调控因子MRG15封闭多肽 | EIF4G2 Antibody Blocking Peptide |
| 6号染色体开放阅读框20封闭多肽 | ADCK4 Antibody Blocking Peptide |
| 锌指蛋白774封闭多肽 | MYST1 Antibody Blocking Peptide |
| 突触融合蛋白6封闭多肽 | FAM83B蛋白封闭多肽 |
| GRAMD1C蛋白封闭多肽 | STX6 Antibody Blocking Peptide |
| γ谷氨酰转肽酶2轻链封闭多肽 | ZNF774 Antibody Blocking Peptide |
| 死亡相关蛋白5封闭多肽 | LY6G5C Antibody Blocking Peptide |
| 脂肪酰基辅酶A还原酶1封闭多肽 | MRG15 Antibody Blocking Peptide |
| ADCK4蛋白封闭多肽 | SilvestrolRecombinant human BMP-7 protein (Active, HEK293) |
| 组蛋白乙酰转移酶MOF封闭多肽 | HOXD9 Antibody Blocking Peptide |
| TET1 Antibody Blocking Peptide | CYPIVF8 Antibody Blocking Peptide |
蛋白酶抑制剂混合物实验步骤:

(1)实验开始前将RNA提取液于65℃水浴锅中预热,离心管中加入ME(巯基乙醇),(10mL加80ul,50mL中加入300ul)
(2)取约0.8g菌丝体(液体培养获得的菌丝用真空抽滤即可!固体培养就更好说了),在液氮中迅速磨成精细粉末,装入50mL离心管,按1g材料8mL的量加入预热的RNA提取液,颠倒混匀
(3)65℃水浴3-10 min,期间混匀2-3次
(4)加入等体积的酚(注意是酸酚pH4.5)::yi戊醇(25:24:1)抽提(10,000rpm,4℃,5 min)
(5)取上清,等体积的yi戊醇(24:1)抽提(10,000rpm,4℃,5 min)
(6)加入1/4V体积10M LiCl溶液,4℃放置6h以上(或过夜)
(7)10,000rpm,4℃离心20min
(8)弃上清,用500ul SSTE溶解沉淀
(9)酚::yi戊醇(25:24:1)抽提两次,:yi戊醇(24:1)抽提1次(10,000rpm,4℃,5min)
(10)加2V体积的无水乙醇,在-70℃冰箱沉淀30min以上
(11)12,000rpm,4℃离心20 min
(12)弃上清.沉淀用70%酒精漂洗一次,干燥
(13)加200ul的DEPC处理水溶解
(14)用非变性琼脂糖凝胶电泳和紫外分光光度计扫描检测RNA的质量(在抽提过程中,若蛋白质含量或其它的杂质还较多,可以增加抽提次数)
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Silvestrol
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