Description |
Artesunate is an inhibitor of both STAT-3 and exported protein 1 (EXP1).
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Target |
Stat-3
EXP1
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In Vitro |
Artesunate is an inhibitor of both STAT-3[1] and exported protein 1 (EXP1)[2]. Artesunate treatment for 24 h causes a significant increase in the levels of reactive oxygen species (ROS) in a dose-dependent manner in both cell lines. Moreover, Western blotting shows that the levels ofγ-H2AX are significantly elevated when cancer cells are treated with Artesunate in the higher dose range for 24 h. Artesunate also shows a time-dependent effect on the level of RAD51 in A2780 and HO8910 cells. In two types of non-malignant cells, normal human fibroblasts and immortalized epithelial cells, FTE-187, the level of RAD51 is not altered by Artesunate. In A2780 cells, the level of RAD51 mRNA is indeed decreased by the addition of Artesunate, in a dose-dependent manner. Correspondingly, the promoter activity of RAD51 is significantly inhibited by Artesunate. In contrast, the RAD51 mRNA level in H8910 cells is not affected by Artesunate[3].
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In Vivo |
Tumor growth is significantly reduced in the group receiving combined treatment of Artesunate and cisplatin (P<0.01). In comparison, Artesunate alone has no significant effect on the growth of tumor xenografts for both cell lines[3].
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Cell Assay |
A2780 and HO8910 cells are cultured in RPMI 1640, Normal human fibroblasts (NHF) in DMEM, and FTE-187 in M199, supplemented with 10% fetal bovine serum, 100 units/mL penicillin, and 100 mg/mL streptomycin. All the cells are incubated in a humidified atmosphere of 95% air and 5% CO2. Artesunate is applied to the cultured cells at the concentration of 0, 5, 10, 25, or 50 µg/mL for various periods. The reactive oxygen species (ROS) production following Artesunate treatment is determined. Briefly, cells are loaded with 5 μM of CM-H2DCFDA and incubated at 37°C for 20 min after treatment with Artesunate. Cells are resuspended using preserving fluid and analyzed with a FACSCanto II. The peak excitation wavelength for oxidized CM-H2DCFDA is 490 nm and emission is 530 nm[3].
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Animal Admin |
Four to six weeks old female athymic nude mice (BALB/c, nu/nu) are used. A2780 and HO8910 cells are harvested and resuspended in 0.1 ml of PBS, 5×106 cells/0.2 mL are injected subcutaneously into the left inguinal area of the mice. Two weeks later, mice bearing tumors (~70 mm3 for A2780 and HO8910) are randomly divided into 4 groups. Artesunate is administered daily via i.p. injection at doses of 50 mg/kg alone for 16 days. The tumor growth is monitored every other day. Tumor volume is determined by the formula 1/2a×b2 where a is the long diameter (mm) and b is the short diameter (mm)[3].
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Density | 1.3±0.1 g/cm3 |
Boiling Point | 507.1±50.0 °C at 760 mmHg |
Flash Point | 175.6±23.6 °C |
Exact Mass | 384.178406 |
PSA | 100.52000 |
LogP | 2.94 |
Vapour Pressure | 0.0±2.8 mmHg at 25°C |
Storage condition | Room temp |