product name MLN0905
Description: MLN0905 is a potent, selective small-molecule inhibitor of PLK1 with IC50 of 2 nM. MLN0905 inhibits cell proliferation in a broad range of human tumor cells including DLBCL cell lines. PLK1 inhibition leads to pharmacodynamic pHisH3 modulation and significant antitumor activity in multiple DLBCL models. These data strongly suggest evaluating PLK1 inhibitors as DLBCL anticancer agents in the clinic.
References: J Med Chem. 2012 Jan 12;55(1):197-208; Mol Cancer Ther. 2012 Sep;11(9):2045-53.
486.56
Formula
C24H25F3N6S
CAS No.
1228960-69-7
Storage
-20℃ for 3 years in powder form
-80℃ for 2 years in solvent
Solubility (In vitro)
DMSO: 97 mg/mL (199.4 mM)
Water: <1 mg/mL
Ethanol: <1 mg/mL
Solubility (In vivo)
Synonyms
other peoduct :
| In Vitro |
In vitro activity: MLN0905 is a potent inhibitor of PLK1 with IC50 of 2 nM. MLN0905 inhibits cell mitosis with EC50 of 9 nM. MLN0905 inhibits Cdc25C-T96 phosphorylation, a direct readout of PLK1 inhibition with EC50 of 29 nM. MLN0905 inhibits HT-29 viability with LD50 of 22 nM. MLN0905 possesses reasonable selectivity against a panel of 359 kinases. MLN0905 inhibits a panel of lymphoma cells viability with IC50 of 3 – 24 nM. Kinase Assay: The human PLK1 enzymatic reaction totaling 30μL contained 50 mM Tris-HCl (pH 8.0), 10 mM MgCl2, 0.02% BSA, 10% glycerol, 1 mM DTT, 100 mM NaCl, 3.3% DMSO, 8 μM ATP, 0.2μCi [γ- 33 P]-ATP, 4μM peptide substrate (Biotin-AHX-LDETGHLDSSGLQEVHLA-CONH2), and 10 nM recombinant human PLK1[2–369]T210D. The enzymatic reaction mixture, with or without PLK inhibitors, is incubated for 2.5 h at 30℃before termination with 20μL of 150 mM EDTA. Then 25μL of the stopped enzyme reaction mixture is transferred to a 384-well streptavidin coated Image FlashPlate and incubated at room temperature for 3 h. The Image Flash Plate wells are washed three times with 0.02% Tween-20 and then read on the Perkin-Elmer Viewlux. Cell Assay: MLN0905 is a selective PLK1 inhibitor and has similar effect as RNAi hnockdown. When tested with HT-29 cells, MLN0905 treatment significantly increased pHisH3 expression which indicated that cells were arrested in G2/M phase by inhibiting PLK1 expression. |
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| In Vivo | Nude mice bearing HT-29 xenografts administered with MLN0905 (6.25 mg/Kg – 50 mg/Kg, p.o.) shows dose-dependent pharmacodynamic responses (48 hours after treatment). OCI LY-19-Luc tumor bearing mice administered with MLN0905 (3.12 mg/Kg – 6.25 mg/Kg, p.o.) shows significant pharmacodynamic responses amd peaks at 8 hours after treatment. MLN0905 shows antitumor efficacy in treatment with OCI LY-19-Luc xenografts bearing scid mice for 21 days. The T/C of 6.25 mg/Kg daily group is 0.15. |
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| Formulation & Dosage | |
| References | J Med Chem. 2012 Jan 12;55(1):197-208; Mol Cancer Ther. 2012 Sep;11(9):2045-53. |
