肉盘菌内酯
肉盘菌内酯 性质
| 沸点 | 400.7±38.0 °C(Predicted) |
|---|---|
| 密度 | 1.29±0.1 g/cm3(Predicted) |
| 储存条件 | Store at -20°C |
| 溶解度 | DMSO:0.97(最大浓度 mg/mL);4.99(最大浓度 mM) 乙醇:0.97(最大浓度 mg/mL);4.99(最大浓度 mM) |
| 形态 | 白色至浅褐色固体 |
| 酸度系数(pKa) | 12.48±0.40(Predicted) |
肉盘菌内酯 用途与合成方法
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STAT3 250-500 nM (IC 50 ) |
Galiellalactone (2.5-25 μM; 24-72 hour) induces apoptosis of prostate cancer (PCa) cell lines expressingp-Stat3.
Galiellalactone (2.5-25 μM; 24-72 hour) decreases viability of DU145 cells.
Galiellalactone (10 μM) inhibits STAT3 signaling activity as assessed by luciferase reporter gene assay in IL-6-stimulated LNCaP cells.
Galiellalactone (10-100 μM; 1 hour) binds directly to STAT3 in DU145 cells .
Galiellalactone (5-50 μM; 1 hour) interferes with STAT3 DNA binding without inhibiting phosphorylation in DU145 cells .
Apoptosis Analysis
| Cell Line: | DU145, PC-3, and LNCaP cells |
| Concentration: | 0, 2.5, 5, 10, 25 μM |
| Incubation Time: | 24, 48, 72 hours |
| Result: | Induced an apoptotic response in PC-3 and DU145 cells. |
Cell Viability Assay
| Cell Line: | DU145 cells |
| Concentration: | 0, 2.5, 5, 10, 17.5, 25 μM |
| Incubation Time: | 24, 48, 72 hours |
| Result: | Decreased DU145 cells viability in a dose- and time-dependent manner. |
Western Blot Analysis
| Cell Line: | DU145 cells |
| Concentration: | 0, 10, 25 μM |
| Incubation Time: | 48 hours |
| Result: | Induced expression of the apoptotic marker cleaved caspase-3 and increased expression of cleaved PARP. |
Western Blot Analysis
| Cell Line: | DU145 cells |
| Concentration: | 0, 10, 25, 50, 100 μM |
| Incubation Time: | 1 hour |
| Result: | Prevented the binding of the biotinylated analogue of galiellalactone (GL-biot) to STAT3 in a dose-dependent manner demonstrating competitive binding. |
Western Blot Analysis
| Cell Line: | DU145 cells |
| Concentration: | 0, 5, 10, 25, 50 μM |
| Incubation Time: | 1 hour |
| Result: |
Inhibited STAT3 binding to DNA in a dose-dependent manner.
Did not affect phosphorylation of STAT3 Tyr-705 and Ser-727 or the expression of total STAT3. |
Galiellalactone (1, 3 mg/kg; daily i.p. for 3 weeks) inhibits PCa tumor growth in vivo.
| Animal Model: | Male nude NMR1 mice are injected PCa cell |
| Dosage: | 0, 1, 3 mg/kg |
| Administration: | Daily i.p. injections for 3 weeks |
| Result: | Reduced the tumor growth rate in DU145 xenografts by 41-42% and was well tolerated. |
