产品信息
Cyclopamine, a Smoothened (Smo) antagonist (IC50: 46 nM in TM3Hh12 cells), belongs to the group of steroidal jerveratrum alkaloids.
|
CAS号
|
4449-51-8 |
| 分子式 |
C27H41NO2 |
| 主要靶点 |
Hedgehog/Smoothened|Endogenous Metabolite|Smo |
| 主要通路 |
代谢|G蛋白偶联受体|干细胞 |
| 分子量 |
411.63 |
| 纯度 |
98.55%， 此纯度可做参考，具体纯度与批次有关系，可咨询客服 |
| 储存条件 |
Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| 别名 |
环巴胺|11-Deoxojervine |
靶点活性
Smoothened:46 nM (TM3Hh12 cells)
体内活性
To examine the effects of cyclopamine treatment in vivo, subcutaneous xenografts from HUCCT1 cells, a metastatic cholangiocarcinoma cell line, were established in athymic mice. Tumours in cyclopamine-treated animals regressed completely by 12 days [3]. In the delayed treatment model, no difference in weight was noted between control and cyclopamine (1.2 mg) treated BxPC3-SMOlow tumours. By contrast, a 50–60% decrease in tumour mass was observed in Panc 05.04- and L3.6sl-derived tumours, respectively (Fig. 5b, c)—an even more marked effect was noted in the concurrent treatment model, which revealed an 84% reduction in tumour mass of L3.6sl-derived tumours [5].
体外活性
The Chicken embryos Exposure to cyclopamine resulted in visible external defects, including cyclopia, microphthalmia, proboscis formation, amelia, thoracic lordosis, and decreased body size [2]. cyclopamine treatment reduced the growth of tumor cell lines from the oesophagus, stomach, biliary tract and pancreas by 75–95% compared with tomatidine controls [3]. In pancreatic cancer cell lines, Hh inhibition with cyclopamine resulted in down-regulation of snail and up-regulation of E-cadherin, consistent with inhibition of epithelial-to-mesenchymal transition, and was mirrored by a striking reduction of in vitro invasive capacity (P < 0.0001) [4].
溶解度
DMSO:4.12 mg/mL (10 mM),Sonification is recommended.
细胞实验
Cells were cultured in triplicate in 96-well plates in assay media to which 5E1 monoclonal antibody, ShhNp and/or cyclopamine were added at 0 h at concentrations indicated in the main text. Viable cell mass was determined by optical density measurements at 490 nm (OD490) at 2 and 4 days using the CellTiter96 colorimetric assay. Relative growth was calculated as OD (day 4) 2 OD (day 2)/OD (day 2) [3].
动物实验
A total of 0.1 ml Hanks' balanced salt solution and matrigel (1:1) containing 2 × 10^6 cells were injected subcutaneously into CD-1 nude mice. Tumours were grown for 4 days to a minimum volume of 125 mm3; treatment was initiated simultaneously for all subjects. Mice were injected subcutaneously with vector alone (triolein:ethanol 4:1 v/v) or a cyclopamine suspension (1.2 mg per mouse in triolein: ethanol 4:1 v/v) daily for 7 days. At the end of the treatment period, tumours were excised from mice, weighed and then fixed for 3 h at 4 °C with 4% paraformaldehyde, embedded in paraffin wax and sectioned (6 μm). Apoptotic cells were identified by TUNEL using recombinant Tdt as previously described29. Sections were then counterstained with eosin. Eight ×20-magnified fields from regions corresponding to the exterior, middle and interior of two control and two cyclopamine-treated tumours were chosen at random [5].
