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受注：045-509-1970 |
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化学情報
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Synonyms | CYC202, Seliciclib, R-roscovitine | Storage (From the date of receipt) |
3 years -20°C powder 1 years -80°C in solvent |
| 化学式 | C19H26N6O |
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| 分子量 | 354.45 | CAS No. | 186692-46-6 | |
| Solubility (25°C)* | 体外 | DMSO | 71 mg/mL (200.31 mM) | |
| Ethanol | 71 mg/mL (200.31 mM) | |||
| Water | Insoluble | |||
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* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. |
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溶剤液（一定の濃度）を調合する
生物活性
| 製品説明 | Roscovitine is a potent and selective CDK inhibitor for Cdc2, CDK2 and CDK5 with IC50 of 0.65 μM, 0.7 μM and 0.16 μM in cell-free assays. It shows little effect on CDK4/6. Phase 2. |
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| in vitro | Roscovitine displays high efficiency and high selectivity towards some cyclin-dependent kinases with IC50 of 0.65, 0.7, 0.7 and 0.16 μM for cdc2/cyclin B, cdk2/cyclin A, cdk2/cyclin E and cdk5/p53, respectively. [1] Roscovitine reversibly inhibits the prophaselmetaphase transition in the micromolar range of starfish oocytes and sea urchin embryos, inhibits in vitro M-phase-promoting factor activity and in vitro DNA synthesis in Xenopus egg extracts, and suppresses the proliferation of mammalian cell lines with an average IC50 of 16 μM. [1] In mesangial cells, Roscovitine results in a dose-dependent reduction of CDK2 activity that at concentrations of 7.5, 12.5 and 25 mM, Roscovitine causes a 25, 50% and 100% decrease in CDK2 activity, respectively. [2] A recent study shows that Roscovitine inhibits cdk5 kinase activity, cell proliferation, multicellular development, and cdk5 nuclear translocation in Dictyostelium discoideum, without affecting the expression of cdk5 protein during axenic growth. [3] |
| in vivo | Roscovitine, at a dose of 50 mg/kg, significantly inhibits growth of The Ewing's sarcoma family of tumors (ESFT) xenografts. [4] Roscovitine enhances the antitumor effect of doxorubicin without increased toxicity with a mechanism that involves cell cycle arrest rather than apoptosis in nude mice bearing established MCF7 xenografts. [5] |
プロトコル(参考用のみ)
| キナーゼアッセイ | Enzymes | |
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| Kinases activities are assayed at 30 °C in buffer C. Blank values are subtracted from the data and activities calculated as molar amount of phosphate incorporated in protein acceptor during a 10-minute incubation. Controls are performed with appropriate dilutions of DMSO. In a few cases, phosphorylation of the substrate is assessed by autoradiography after SDS/PAGE. p34cdc2/cyclin B is purified from M-phase starfish (M. glacialis) oocytes by affinity chromatography. It is assayed with 1 mg histone Hl/mL, in the presence of 15 μM [γ-32P]ATP (3000 Ci/mmol; 1 mCi/mL) in a final volume of 30 μL. After a 10-minute incubation at 30 °C, 25-μL aliquots of supernatant are spotted onto pieces of Whatman P81 phosphocellulose paper, and, after 20 seconds, the filters are washed five times (for at least 5 minutes each time) in a solution of 10mL phosphoric acid/L water. The wet filters are transferred into 6-mL plastic scintillation vials, 5 mL ACS scintillation fluid is added and the radioactivity measured in a Packard counter. The kinase activity is expressed as molar amount of phosphate incorporated in histone H1 during a 10-minutes incubation or as a percentage of maximal activity. p33cdk2/cyclin A and p33cdk2/cyclinE are reconstituted from extracts of sf9 insect cells infected with various baculoviruses. Cyclins A and E are fusion proteins with glutathione S-transferase and the complexes are purified on glutathione-agarose beads. Kinase activities are assayed with 1 mg/mL histone H1, in the presence of 15 μM [γ-32P]ATP, during 10 minutes, in a final volume of 30 μL, as described for the p34cdc2/cyclin B kinase. p33cdk5/p35 is purified from bovine brain, excluding the Mono S-chromatographic step. The active fractions from the Superose 12 column are pooled and concentrated to a final concentration of approximately 25 μg enzyme/mL. The kinase is assayed with 1 mg/mL histone HI in the presence of 15 μM [γ-32P]ATP, during 10 minutes in a final volume of 30 μL, as described for the p34cdc2/cyclin B kinase. p33cdk5/cyclin D1 is obtained from insect cell lysates. Cdk4 is a fusion protein with glutathione-S-transferase and the active complex is purified on glutathione-agarose beads. Its kinase activity is assayed with purified retinoblastoma protein (complexed with glutathione-S-transferase) in the presence of 15 μM [γ-32P]ATP, in a final volume of 30 μL. After a 15-minute incubation, 30 μL Laemmli sample buffer is added. The phosphorylated substrate is resolved by 10 % SDS/PAGE and analysed by autoradiography by overnight exposure to Hyperfilm MP and densitometry. p33cdk4/cyclinD 2 is obtained from insect cell lysates. It is assayed with purified retinoblastoma protein (complexed with glutathione-S-transferase) in the presence of 15 μM [γ-32P]ATP in a final volume of 30 μL. After a 30-minute incubation, 30 μL Laemmli sample buffer is added. The phosphorylated substrate is resolved by 10% SDS/PAGE and analysed by autoradiography by overnight exposure to Hyperfilm MP and densitometry. MAP kinase erkl (tagged with glutathione-S-transferase), is expressed in bacteria, purified on glutathione-agarose beads and assayed with 1 mg myelin basic protein/ml in the presence of 15 μM [γ-32P]ATP as described above for the p34cdc2cyclin B kinase. His-tagged erkl and erk2 are activated in vitro by mitogen-activated protein kinase kinase, purified (Ni-affinity and Mono Q) and assayed as described above during 10 minutes in a final volume of 30 μL. The catalytic subunit of cAMP-dependent protein kinase, purified from bovine heart, is assayed with 1 mg histone Hl/ml, in the presence of 15 μM [γ-32P]ATP as described for the p34cdc2/cyclin B kinase. cGMP-dependent protein kinase, purified to homogeneity from bovine tracheal smooth muscle, is assayed with 1 mg histone Hl/mL, in the presence of 15 μM [γ-32P]ATP as described for the p34cdc2/cyclin B kinase. Casein kinase 2 is isolated from rat liver cytosol and assayed with 1 mg casein/mL and 15 μM [γ-32P]ATP. The substrate is spotted on Whatmann 3MM filters and washed with 10% (mass/vol.) trichloroacetic acid. Myosin light chain kinase, purified from chicken gizzard is assayed in the presence of 100 nM calmodulin, 100 μM CaCl2, 50 mM Hepes, 5 mM MgCI,, 1 mM dithiothreitol and 0.1 mg BSA/ml at pH 7.5 using a synthetic peptide based on the smooth-muscle myosin light-chain phosphorylation site and in the presence of 15 μM [γ-32P]ATP, in a final volume of 50 μL. Incorporation of radioactive phosphate is monitored on phosphocellulose filters as described above. ASK-γ, a plant homologue of GSK-3, is expressed as a glutathione-S-transferase fusion protein in Escherichia coli and purified on glutathione-agarose. ASK-γ kinase is assayed, for 10 minutes at 30 °C, with 5 μg myelin basic protein, in the presence of 15 μM [γ-32P]ATP in a final volume of 30 μL. The phosphorylated myelin basic protein is recovered on Whatman P81 phosphocellulose paper as described for the p34cdc2/cyclin B kinase. Insulin receptor tyrosine kinase domain (CIRK-41) is overexpressed in a baculovirus system and purified to homogeneity. Its kinase activity is assayed, for 10 minutes at 30 °C, with 5 μg Raytide, in the presence of 15 μM [γ-32P]ATP, in a final volume of 30 μL. The phosphorylated Raytide is recovered on Whatman P81 phosphocellulose paper as described for the p34cdc2/cyclin B kinase. c-src kinase is purified from infected Sf9 cells. The v-abl kinase is expressed in E. coli and affinity purified on IgG Affigel 10. Both kinases are assayed for 10 minutes at 30 °C, with 5 μg Raytide, in the presence of 15 μM [γ-32P]ATP, in a final volume of 30 μL. The phosphorylated Raytide is recovered on Whatman P81 phosphocellulose paper as described for the p34cdc2/cyclin B kinase. | ||
| 細胞アッセイ | 細胞株 | Leukemia, non-small cell lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer, prostate cancer, breast cancer |
| 濃度 | 0.01 - 100 μM | |
| 反応時間 | 48 hours | |
| 実験の流れ | 60 human tumour cell lines comprising nine tumor types are cultured for 24 hours prior to a 48-hour continuous exposure to 0.01-100 μM roscovitine. A sulforhodaminine B protein assay is used to estimate the cytotoxicity. |
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| 動物実験 | 動物モデル | A4573 cells are injected s.c. into the right posterior flank of CD1 nu/nu mice. |
| 投薬量 | ≤50 mg/kg | |
| 投与方法 | Administered via i.p. | |
参考
カスタマーフィードバック
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Data from [J Hematol Oncol, 2012, 7, 53]
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Data from [PNAS, 2011, 108, 8417]
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Data from [PNAS, 2011, 108, 8417]
Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：
| Switch-like phosphorylation of WRN integrates end-resection with RAD51 metabolism at collapsed replication forks [ Nucleic Acids Res, 2024, gkae807] | PubMed: 39315694 |
| An E7-retinoblastoma protein pathway mechanism may account for the higher carcinogenic ability of HPV16 over HPV58 in cervical cancer [ Transl Cancer Res, 2024, 13(4):1876-1886] | PubMed: 38737678 |
| Multiplex single-cell chemical genomics reveals the kinase dependence of the response to targeted therapy [ Cell Genom, 2024, 4(2):100487] | PubMed: 38278156 |
| Cytoplasmic division cycles without the nucleus and mitotic CDK/cyclin complexes [ Cell, 2023, 186(21):4694-4709.e16] | PubMed: 37832525 |
| Cytoplasmic division cycles without the nucleus and mitotic CDK/cyclin complexes [ Cell, 2023, 186(21):4694-4709.e16] | PubMed: 37832525 |
| Polarized microtubule remodeling transforms the morphology of reactive microglia and drives cytokine release [ Nat Commun, 2023, 14(1):6322] | PubMed: 37813836 |
| Polarized microtubule remodeling transforms the morphology of reactive microglia and drives cytokine release [ Nat Commun, 2023, 14(1):6322] | PubMed: 37813836 |
| Development of allosteric and selective CDK2 inhibitors for contraception with negative cooperativity to cyclin binding [ Nat Commun, 2023, 14(1):3213] | PubMed: 37270540 |
| Re-Evaluating the Relevance of the Oxygen-Glucose Deprivation Model in Ischemic Stroke: The Example of Cdk Inhibition [ Int J Mol Sci, 2023, 24(8)7009] | PubMed: 37108171 |
| 27-hydroxycholesterol and DNA damage repair: implication in prostate cancer [ Front Oncol, 2023, 13:1251297] | PubMed: 38188290 |
長期の保管のために-20°Cの下で製品を保ってください。
人間や獣医の診断であるか治療的な使用のためにでない。
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