生物活性 | |||
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描述 | Rigosertib is non-ATP-competitive inhibitor to PLK1 with IC50 of 9 nM. Rigosertib also exhibits inhibition against PLK2, PDGFR, Flt1, BCR-ABL, Fyn, Src, and CDK1, with IC50 of 18-260 nM. Rigosertib shows cell killing activity against 94 different tumor cell lines with IC50 of 50-250 nM, including BT27, MCF-7, DU145, PC3, U87, A549, H187, RF1, HCT15, SW480, and KB cells. While in normal cells, such as HFL, PrEC, HMEC, and HUVEC, Rigosertib has little or no effect unless its concentration is greater than 5-10 μM. In HeLa cells, Rigosertib (100-250 nM) induces spindle abnormalities and apoptosis. Rigosertib also inhibits several multidrug resistant tumor cell lines, including MES-SA, MES-SA/DX5a, CEM, and CEM/C2a, with IC50 of 50-100 nM. In DU145 cells, Rigosertib (0.25-5 μM) blocks cell cycle progression in G2/M phase, results in an accumulation of cells containing subG1 content of DNA, and activates apoptotic pathways. In A549 cells, Rigosertib (50 nM-0.5 μM) induces loss of viability and caspase 3/7 activation. In a recent study, Rigosertib induces apoptosis in chronic lymphocytic leukemia (CLL) cells without toxicity against T-cells or normal B-cells. Rigosertib also abrogates the pro-survival effect of follicular dendritic cells on CLL cells and reduces SDF-1-induced migration of leukemic cells. |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
human A2780 cells | Proliferation assay | 72 h | Antiproliferative activity against human A2780 cells assessed as cell growth inhibition after 72 hrs by MTT assay, GI50=62 nM | 24471873 | |
human A2780 cells | 0.25 μM | Function assay | 24 h | Reduction in Mcl1 level in human A2780 cells at 0.25 uM after 24 hrs by Western blot analysis | 24471873 |
human DU145 cells | Proliferation assay | 72 h | Antiproliferative activity against AR negative human DU145 cells assessed as cell growth inhibition after 72 hrs by MTT assay, GI50=75 nM | 24471873 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.11mL 0.42mL 0.21mL |
10.56mL 2.11mL 1.06mL |
21.12mL 4.22mL 2.11mL |