Research Area
Product Type
United States ( Change Country )
Roscovitine (Seliciclib, CYC202) Chemical Structure
Recommended Products
PD 0332991 HCl
PD 0332991 is a highly selective inhibitor of Cdk4/cyclin D1 and Cdk6/cyclin D2 with IC50 of 11 nM and 16 nM, respectively.
SNS-032 (BMS-387032)
SNS-032 (BMS-387032) is a potent and selective cyclin-dependent kinases (CDK) 9, 7 and 2 inhibitor with IC50 of 4, 62 and 38 nM for CDK9, CDK2/cyclin A and CDK7/Cyclin H.
Flavopiridol (Alvocidib)
Flavopiridol (Alvocidib) is a pan-cdk inhibitor. Flavopiridol is a potent inhibitor of CDKs 1, 2 and 4 in cell-free assays (IC50 in the region of 100 nM) and tumour cell growth in vitro (typical IC50 in the region of 100 nM). Flavopiridol inhibited rhabdoid cell growth (IC50 of 200nmol/L).
JNJ-7706621
JNJ-7706621 is a novel, potent, and broad-spectrum inhibitor of CDK and Aurora kinases including CDK1/Cyclin B, CDK2/Cyclin A, CDK2/Cyclin E, Aurora-A and Aurora-B with IC50 of 9 nM, 4 nM, 3 nM and 11 nM, respectively.
PHA-793887
PHA-793887 is a novel pan-cdk inhibitor, including cdk1, cdk2, cdk4, cdk5, cdk7, and cdk9 with IC50 in the 5 to 140 nM range.
AT7519
AT7519 is a kinase inhibitor with IC50 of 0.19, 0.044, 0.51, 0.067, 0.66 and 0.018 μM for CDK1/cyclinB, CDK2/CyclinA, CDK2/Cyclin E, CDk4/CyclinD1, CDK6/Cyclin D3, CDk5/p35.
BS-181 HCl
BS-181 is a highly selective cyclin-dependent kinase (CDK) inhibitor of CDK7 activity with IC50 of 21 nM.
Mubritinib (TAK 165)
Mubritinib (TAK 165) is a potent EGFR and p34cdc2 inhibitor with IC50 of 6 nM and 0.2 μM, respectively
AZD5438
AZD5438 is a potent cyclin-dependent kinase (cdk) 1, 2 and 9 inhibitor with IC50 of 16, 6 and 20 nM, respectively.
Biological Activity
| Information | Roscovitine (Seliciclib, CYC202, R-roscovitine) is a potent and selective inhibitor of the 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. | |||||
|---|---|---|---|---|---|---|
| Targets | cdc2/cyclin B | cdk2/cyclin A | cdk2/cyclin E | cdk5/p35 | ||
| IC50 | 0.65 μM | 0.7 μM | 0.7 μM | 0.16 μM [1] | ||
| 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] | |||||
| Clinical Trials | Roscovitine is currently in Phase I clinical trial in patients with advanced solid tumors. | |||||
| Features | ||||||
Protocol
Kinase Assay: [1]
| Enzymes | 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. Protein kinase C isoforms are purified from baculovirus infected sf9 insect cells and assayed with 1 mg/mL protamine sulfate in the presence of 15 μM [γ-32P]ATP, during 10 minutes at 30 °C, in a final volume of 30 μL. Phosphorylated protamine sulfate is recovered on Whatman P81 phosphocellulose paper as described for the cdc2 kinase. 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. |
|---|
Cell Assay: [1]
| Cell lines: | Leukemia, non-small cell lung cancer, colon cancer, central nervous system cancer, melanoma, ovarian cancer, renal cancer, prostate cancer, breast cancer |
|---|---|
| Concentrations: | 0.01 - 100 μM |
| Incubation Time: | 48 hours |
| Method: | 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 was used to estimate the cytotoxicity. |
Animal Study:[4]
Chemical Information
| Molecular Weight (WM): | 354.45 |
|---|---|
| Formula: | C19H26N6O |
| CAS No.: | 186692-46-6 |
| Synonyms: |
N/A
|
| Dissolve in (25°C): | DMSO ≥71mg/mL |
| Water <1mg/mL | |
| Ethanol ≥71mg/mL | |
| Storage: | 2 years-20°CPowder |
| 1 week-4°Cin DMSO | |
| 1 month-80°in DMSO |
Quality Control & MSDS
Research Area
Notes:
Related Inhibitors
Recommended Screening Libraries
Chemical Library
A collection of 864 bioactive compounds
Inhibitor Library
A collection of 481 inhibitors
Kinase Inhibitor Library
A collection of 194 kinase inhibitors
Tyrosine Kinase Inhibitor Library
A collection of 85 tyrosine kinase inhibitors.
FDA Approved Drug Library
A collection of 426 FDA approved drugs
Natural Product Library
A collection of 139 natural products
Chemotherapeutic Agent Library
A collection of 40 chemotherapeutic agents
Epigenetics Compound library
A unique collection of 17 small molecule modulators
Stem Cell Compound library
A unique collection of 47 small molecule inhibitors
GPCR Compound library
A unique collection of 63 GPCR small molecules
Selleck's high quality products have been used in several published research findings, including the following:
Targeting zebrafish and murine pituitary corticotroph tumors with a cyclin-dependent kinase (CDK) inhibitor.
We have 3 customer reviews of Roscovitine (Seliciclib, CYC202) .
- (3)
- (0)
- (0)
- (0)
- (0)
- (0)
- (0)
- (0)
- (0)
Average Customer Review
(3 customer reviews)
-
Click to enlarge
(C) In vivo treatment of Tg:Pomc-Pttg;Pomc-eGFP embryos with small-molecule CDK inhibitors (50μM) or 0.2% DMSO as control from 18 to 40 hpf. One hundred to one hundred fifty embryos were treated with each compound. Representative images of live embryos are shown with gross morphology (Right) and pituitary Pomc-GFP–positive cells at higher magnification (Left) at 40 hpf. Embryos exposed to flavopiridol developed early developmental defect before pituitary POMC cell ontogeny occurs. (D) Relative expression of pituitary Pomc-eGFP fluorescence analyzed using Volocity 5.2 software (Improvision; mean ± SE of relative expression, n = 7). (E) R-roscovitine specifically suppresses expansion of pituitary POMC cells overexpressing zPttg from 18 to 48 hpf. Double transgenic Tg:Pomc-Pttg;Prl-RFP embryos were generated by breeding Tg:Pomc-Pttg fish with a previously generated PRL-RFP transgenic line, in which RFP was targeted to pituitary lactotrophs by a zebrafish Prolactin promoter (34). Representative fluorescent microscopy of pituitary POMC-eGFP (a and b) and PRL-RFP (c and d) expression in live Tg:Pomc-Pttg; Pomc-eGFP and Tg:Pomc-Pttg;Prl-RFP embryos treated with 0.2% DMSO (a and c) or 50 μM R-roscovitine (b and d). (F) Relative expression of pituitary POMC-eGFP or PRL-RFP fluorescence were analyzed (mean ± SE of relative expression; n = 10). Results represent one of three similar experiments;*P < 0.02 and **P < 0.000005. (Scale bar, 50 μm.)
(C) In vivo treatment of Tg:Pomc-Pttg;Pomc-eGFP embryos with small-molecule CDK inhibitors (50μM) or 0.2% DMSO as control from 18 to 40 hpf. One hundred to one hundred fifty embryos were treated with each compound. Representative images of live embryos are shown with gross morphology (Right) and pituitary Pomc-GFP–positive cells at higher magnification (Left) at 40 hpf. Embryos exposed to flavopiridol developed early developmental defect before pituitary POMC cell ontogeny occurs. (D) Relative expression of pituitary Pomc-eGFP fluorescence analyzed using Volocity 5.2 software (Improvision; mean ± SE of relative expression, n = 7). (E) R-roscovitine specifically suppresses expansion of pituitary POMC cells overexpressing zPttg from 18 to 48 hpf. Double transgenic Tg:Pomc-Pttg;Prl-RFP embryos were generated by breeding Tg:Pomc-Pttg fish with a previously generated PRL-RFP transgenic line, in which RFP was targeted to pituitary lactotrophs by a zebrafish Prolactin promoter (34). Representative fluorescent microscopy of pituitary POMC-eGFP (a and b) and PRL-RFP (c and d) expression in live Tg:Pomc-Pttg; Pomc-eGFP and Tg:Pomc-Pttg;Prl-RFP embryos treated with 0.2% DMSO (a and c) or 50 μM R-roscovitine (b and d). (F) Relative expression of pituitary POMC-eGFP or PRL-RFP fluorescence were analyzed (mean ± SE of relative expression; n = 10). Results represent one of three similar experiments;*P < 0.02 and **P < 0.000005. (Scale bar, 50 μm.)
Data from [PNAS 2011.May;108:8417] Roscovitine (Seliciclib, CYC202) purchased from Selleck
-
Click to enlarge
In vitro inhibition of mouse corticotroph tumor cells by R-roscovitine. (A) Treatment of ACTH-secreting AtT20 cells with R-roscovitine (1–2 × 10−5 M) led to decreased number of viable cells at 24 and 48 h, as depicted by Wst-1 proliferation assay (mean ± SE; **P < 0.01). (B) Western blot of protein extracts derived from AtT20 cells treated with vehicle or R-roscovitine. (C) R-roscovitine treatment (10 μM) for 48 h induced senescence as indicated by increased β-gal expression. (D) ACTH concentration by radioimmunoassays of culture medium from AtT20 cells treated with vehicle or R-roscovitine (mean ± SE; **P < 0.01 and ***P < 0.001). (E) Western blot of protein extracts derived from AtT20 cells treated with R-roscovitine. Vehicle is 0.2% DMSO. - In vitro inhibition of mouse corticotroph tumor cells by R-roscovitine. (A) Treatment of ACTH-secreting AtT20 cells with R-roscovitine (1–2 × 10−5 M) led to decreased number of viable cells at 24 and 48 h, as depicted by Wst-1 proliferation assay (mean ± SE; **P < 0.01). (B) Western blot of protein extracts derived from AtT20 cells treated with vehicle or R-roscovitine. (C) R-roscovitine treatment (10 μM) for 48 h induced senescence as indicated by increased β-gal expression. (D) ACTH concentration by radioimmunoassays of culture medium from AtT20 cells treated with vehicle or R-roscovitine (mean ± SE; **P < 0.01 and ***P < 0.001). (E) Western blot of protein extracts derived from AtT20 cells treated with R-roscovitine. Vehicle is 0.2% DMSO.
Data from [PNAS 2011.May;108:8417] Roscovitine (Seliciclib, CYC202) purchased from Selleck
-
Click to enlarge
In vivo action of R-roscovitine inmouse corticotroph adenomas. Athymic nude mice were s.c. inoculated with corticotroph tumor AtT20 cells (1 × 105 cells). Three days after injection, mice were randomized to receive Rroscovitine (150 mg/kg) or vehicle by oral gavage twice daily, 5 d/wk. After 3 wk, tumor xenografts were dissected and (A) tumor volumes were decreased in R-roscovitine–treated animals. (B) Western blot of representative tumor specimens showed decreased ACTH and PCNA expression in R-roscovitine–treated tumors. (C) R-roscovitine–treated corticotroph tumors exhibited decreased PCNA and ACTH coexpressing cells. Fluorescence microscopy image of immunohistochemistry detecting PCNA (red) and ACTH (green) expression in control (a–c) and R-roscovitine–treated tumors (d–f). Cryosection slides were counterstained with DAPI (blue). (D) Blood was collected from each animal for measurement of plasma ACTH and serum corticosterone levels (mean ± SE; n = 13–14 mice for each group; **P < 0.01). - In vivo action of R-roscovitine inmouse corticotroph adenomas. Athymic nude mice were s.c. inoculated with corticotroph tumor AtT20 cells (1 × 105 cells). Three days after injection, mice were randomized to receive Rroscovitine (150 mg/kg) or vehicle by oral gavage twice daily, 5 d/wk. After 3 wk, tumor xenografts were dissected and (A) tumor volumes were decreased in R-roscovitine–treated animals. (B) Western blot of representative tumor specimens showed decreased ACTH and PCNA expression in R-roscovitine–treated tumors. (C) R-roscovitine–treated corticotroph tumors exhibited decreased PCNA and ACTH coexpressing cells. Fluorescence microscopy image of immunohistochemistry detecting PCNA (red) and ACTH (green) expression in control (a–c) and R-roscovitine–treated tumors (d–f). Cryosection slides were counterstained with DAPI (blue). (D) Blood was collected from each animal for measurement of plasma ACTH and serum corticosterone levels (mean ± SE; n = 13–14 mice for each group; **P < 0.01).
Data from [PNAS 2011.May;108:8417] Roscovitine (Seliciclib, CYC202) purchased from Selleck
This product has been referenced in
Check our customer reviews
(C) In vivo treatment of Tg:Pomc-Pttg;Pomc-eGFP embryos with small-molecule CDK inhibitors (50μM) or 0.2% DMSO as control from 18 to 40 hpf. One hundred to one hundred fifty embryos were treated with each compound. Representative images of live embryos are shown with gross morphology (Right) and pituitary Pomc-GFP–positive cells at higher magnification (Left) at 40 hpf. Embryos exposed to flavopiridol developed early developmental defect before pituitary POMC cell ontogeny occurs. (D) Relative expression of pituitary Pomc-eGFP fluorescence analyzed using Volocity 5.2 software (Improvision; mean ± SE of relative expression, n = 7). (E) R-roscovitine specifically suppresses expansion of pituitary POMC cells overexpressing zPttg from 18 to 48 hpf. Double transgenic Tg:Pomc-Pttg;Prl-RFP embryos were generated by breeding Tg:Pomc-Pttg fish with a previously generated PRL-RFP transgenic line, in which RFP was targeted to pituitary lactotrophs by a zebrafish Prolactin promoter (34). Representative fluorescent microscopy of pituitary POMC-eGFP (a and b) and PRL-RFP (c and d) expression in live Tg:Pomc-Pttg; Pomc-eGFP and Tg:Pomc-Pttg;Prl-RFP embryos treated with 0.2% DMSO (a and c) or 50 μM R-roscovitine (b and d). (F) Relative expression of pituitary POMC-eGFP or PRL-RFP fluorescence were analyzed (mean ± SE of relative expression; n = 10). Results represent one of three similar experiments;*P < 0.02 and **P < 0.000005. (Scale bar, 50 μm.)
|
Data from [PNAS 2011.May;108:8417]
| In vitro inhibition of mouse corticotroph tumor cells by R-roscovitine. (A) Treatment of ACTH-secreting AtT20 cells with R-roscovitine (1–2 × 10−5 M) led to decreased number of viable cells at 24 and 48 h, as depicted by Wst-1 proliferation assay (mean ± SE; **P < 0.01). (B) Western blot of protein extracts derived from AtT20 cells treated with vehicle or R-roscovitine. (C) R-roscovitine treatment (10 μM) for 48 h induced senescence as indicated by increased β-gal expression. (D) ACTH concentration by radioimmunoassays of culture medium from AtT20 cells treated with vehicle or R-roscovitine (mean ± SE; **P < 0.01 and ***P < 0.001). (E) Western blot of protein extracts derived from AtT20 cells treated with R-roscovitine. Vehicle is 0.2% DMSO. |
Data from [PNAS 2011.May;108:8417]
Recently Viewed Items
Keywords:buy Roscovitine (Seliciclib, CYC202) | Roscovitine (Seliciclib, CYC202) supplier | purchase Roscovitine (Seliciclib, CYC202) | Roscovitine (Seliciclib, CYC202) cost | Roscovitine (Seliciclib, CYC202) manufacturer | order Roscovitine (Seliciclib, CYC202) | Roscovitine (Seliciclib, CYC202) distributor