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- 详细信息
- 技术资料
- 库存:
30
- 英文名:
Cucurbitacin I
- CAS号:
2222-07-3
- 供应商:
上海莼试
- 保存条件:
Store at -20°C
- 规格:
1mg 5mg 10mg
产品描述:
分子式:C30H42O7

分子量:514.65
溶解度:5mg/mL in DMSO, 10mg/mL in Ethanol
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
Cucurbitacin I is a selective inhibitor of JAK2/STAT3 signaling pathway with an IC50 value of 500 nM in A549 (a human lung adenocarcinoma cell line). It suppressed phosphotyrosine levels of STAT3, restrained STAT3 DNA binding and STAT3-mediated gene expression but had no effects on the activation of Src, Akt, ERK and JNK [1].JAK/STAT3 signaling is well known for its vital role in the regulation of tumor cell proliferation, survival, invasion and immunosuppression. It promotes the development of various types of cancer in different manners [2].Cucurbitacin I is often used to investigate the role of STAT3 in tumor development. It can induce apoptosis and block cell cycle progression of various cancer cells. In addition, Cucurbitacin I can decrease cell viability through inhibiting cell migration and invasion and enhancing chemosensitivity in the colon cancer cell line COLO205 [3].Recent research has showed that it also has anti-angiogenic effects in human breast cancer cells [4]. In vivo, matrigel plug assay showed dramatic decrease in vascularization and hemoglobin content in the plugs from Cucurbitacin-I-treated mice, compared with control mice [5]. Therefore, Cucurbitacin I has potent anticancer effect on a variety of cancer cell types.However, exposing glioblastoma multiforme cells to Cucurbitacin I could up-regulate beclin1 and trigger a protective autophagy against the apoptosis. Deletion of beclin 1 or treatment with the autophagy inhibitor sensitized cancer cells to Cucurbitacin I-induced apoptosis [6]. Thus the role of Cucurbitacin I in the regulation of autophagy requires for further research.
商品属性:
注意事项:
抗逆滴加序列
每次向板内滴加抗原时,移液器滴头要与平面45度悬空,不要触碰到孔内的液体,由后向前依次滴加(即浓度由低往高滴加)。
抗感染反应期
抗原抗体在室温20~25℃下,必须反应30min以上,若环境温度低于室温,可将微量反应板置于恒温培养箱中,使二者充分反应。
旅游温度
磷酸盐缓冲液的pH值要在高压灭菌后进行滴定,往往在高压后pH值会有所改变,所以高压后再调一次pH值更为准确。磷酸盐缓冲液一经使用保存期不要超过3周。当pH<5.8时,红细胞会产生自凝现象;当pH>7.8时,图形洗脱加快,易造成肉眼观察产生误差;p H=7.2时,红细胞沉降最充分,图形最清晰。
当滴注 1%红细胞悬液时,应经常摇晃红细胞悬液,使红细胞均匀地分布在磷酸缓冲液中,以防止红细胞下降。
反应时间及温度
加入鸡红血球之后,反应板在室温(20~25℃)静置30~40min,对照孔血球下沉于孔底,即可判定结果。若室温达不到实验要求,需相应调整反应时间。当环境温度低于4℃时,红细胞发生自凝;高于37℃时,会发生反应物分离和红细胞溶血。
公司正在出售的产品:
使用方法:
1.本蛋白酶抑制剂混合物为100×的储存液,使用时按照1:100的比例加入到裂解液中(例如,1ml裂解液中加入10μl蛋白酶抑制剂混合物),混匀后即可使用。根据需要,0.5M的EDTA也按照1:100的比例加入到裂解液中(如用于检测金属蛋白酶活性,则不宜添加EDTA)。含有蛋白酶抑制剂混合物的裂解液宜现用现配,不宜配制后冻存待后续使用。
2. 待所需的抑制剂添加完毕混匀后,就可以开始进行哺乳动物组织的裂解和蛋白提取。
分子式:C30H42O7

分子量:514.65
溶解度:5mg/mL in DMSO, 10mg/mL in Ethanol
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
Cucurbitacin I is a selective inhibitor of JAK2/STAT3 signaling pathway with an IC50 value of 500 nM in A549 (a human lung adenocarcinoma cell line). It suppressed phosphotyrosine levels of STAT3, restrained STAT3 DNA binding and STAT3-mediated gene expression but had no effects on the activation of Src, Akt, ERK and JNK [1].JAK/STAT3 signaling is well known for its vital role in the regulation of tumor cell proliferation, survival, invasion and immunosuppression. It promotes the development of various types of cancer in different manners [2].Cucurbitacin I is often used to investigate the role of STAT3 in tumor development. It can induce apoptosis and block cell cycle progression of various cancer cells. In addition, Cucurbitacin I can decrease cell viability through inhibiting cell migration and invasion and enhancing chemosensitivity in the colon cancer cell line COLO205 [3].Recent research has showed that it also has anti-angiogenic effects in human breast cancer cells [4]. In vivo, matrigel plug assay showed dramatic decrease in vascularization and hemoglobin content in the plugs from Cucurbitacin-I-treated mice, compared with control mice [5]. Therefore, Cucurbitacin I has potent anticancer effect on a variety of cancer cell types.However, exposing glioblastoma multiforme cells to Cucurbitacin I could up-regulate beclin1 and trigger a protective autophagy against the apoptosis. Deletion of beclin 1 or treatment with the autophagy inhibitor sensitized cancer cells to Cucurbitacin I-induced apoptosis [6]. Thus the role of Cucurbitacin I in the regulation of autophagy requires for further research.
商品属性:
| 货号 | CS-01Y66859 | 规格 | 1mg 5mg 10mg |
| CAS号 | 2222-07-3 | 分子量 | 514.65 |
| 含量 | >98.00% | 别名 | N/A |
| 分子式 | C30H42O7 | 化学名 | (10α)-2,16α,20,25-tetrahydroxy-9β-methyl-19-norlanosta-1,5,23E-triene-3,11,22-trione |
| 产地 | 国产 | 用途 | 仅供科研研究实验 |
抗逆滴加序列
每次向板内滴加抗原时,移液器滴头要与平面45度悬空,不要触碰到孔内的液体,由后向前依次滴加(即浓度由低往高滴加)。
抗感染反应期
抗原抗体在室温20~25℃下,必须反应30min以上,若环境温度低于室温,可将微量反应板置于恒温培养箱中,使二者充分反应。
旅游温度
磷酸盐缓冲液的pH值要在高压灭菌后进行滴定,往往在高压后pH值会有所改变,所以高压后再调一次pH值更为准确。磷酸盐缓冲液一经使用保存期不要超过3周。当pH<5.8时,红细胞会产生自凝现象;当pH>7.8时,图形洗脱加快,易造成肉眼观察产生误差;p H=7.2时,红细胞沉降最充分,图形最清晰。
当滴注 1%红细胞悬液时,应经常摇晃红细胞悬液,使红细胞均匀地分布在磷酸缓冲液中,以防止红细胞下降。
反应时间及温度
加入鸡红血球之后,反应板在室温(20~25℃)静置30~40min,对照孔血球下沉于孔底,即可判定结果。若室温达不到实验要求,需相应调整反应时间。当环境温度低于4℃时,红细胞发生自凝;高于37℃时,会发生反应物分离和红细胞溶血。
公司正在出售的产品:
| FITC标记的小鼠抗牛IgG H&L | RBITC标记兔抗鸡IgY抗体 |
| Alexa Fluor 647标记的羊抗人IgM | β葡萄糖苷酶3抗体 |
| PE-Cy7标记的小鼠抗兔IgG H&L | 整合素αVβ1抗体 |
| Alexa Fluor 555标记的兔抗大鼠IgM | IGF2基因的互补基因1蛋白抗体 |
| AF594标记的兔抗大鼠IgG H&L | 补体C3cα 链片段1抗体 |
| 碱性磷酸酶(AP)标记的羊抗人IgG H&L | 囊泡相关膜蛋白相关蛋白A抗体 |
| Cy3标记的羊抗小鼠IgM | 人巨细胞病毒UL49蛋白抗体 |
| Cy3标记的羊抗牛IgG H&L | GATA结合蛋白4抗体 |
| 碱性磷酸酶(AP)标记的兔抗小鼠IgG H&L | 磷酸化HER4抗体 |
| 辣根过氧化物酶标记的小鼠抗豚鼠IgG H&L | 胞质紧密粘连蛋白1/闭锁小带蛋白1抗体 |
| Alexa Fluor 555标记的兔抗牛IgG H&L | 白介素13抗体 |
| PE-Cy7标记的羊抗豚鼠IgG H&L | 锌指蛋白142抗体 |
| Alexa Fluor 488标记的羊抗大鼠IgG H&L | Cucurbitacin Iβ淀粉样蛋白前体蛋白结合蛋白2抗体 |
| 5'-核苷酸酶Ⅲ(NT5C3)重组蛋白 | 钙结合蛋白39单克隆抗体 |
| 血红素转运蛋白1抗体 | E3泛素蛋白连接酶HACE1单克隆抗体 |
1.本蛋白酶抑制剂混合物为100×的储存液,使用时按照1:100的比例加入到裂解液中(例如,1ml裂解液中加入10μl蛋白酶抑制剂混合物),混匀后即可使用。根据需要,0.5M的EDTA也按照1:100的比例加入到裂解液中(如用于检测金属蛋白酶活性,则不宜添加EDTA)。含有蛋白酶抑制剂混合物的裂解液宜现用现配,不宜配制后冻存待后续使用。
2. 待所需的抑制剂添加完毕混匀后,就可以开始进行哺乳动物组织的裂解和蛋白提取。
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Cucurbitacin I
¥600 - 3200








