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PD0166285

PD0166285
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Purity:99.59%
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PD0166285

Catalog No. T6931Cas No. 185039-89-8
PD0166285 is a potent Wee1 and Chk1 inhibitor with activity at nanomolar concentrations.PD0166285 is a novel G2 checkpoint abrogator.
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Pack SizePriceAvailabilityQuantity
1 mg$52In Stock
2 mg$73In Stock
5 mg$132In Stock
10 mg$210In Stock
25 mg$462In Stock
50 mg$678In Stock
100 mg$966In Stock
500 mg$1,930In Stock
1 mL x 10 mM (in DMSO)$148In Stock
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Product Introduction

Bioactivity
Description
PD0166285 is a potent Wee1 and Chk1 inhibitor with activity at nanomolar concentrations.PD0166285 is a novel G2 checkpoint abrogator.
In vitro
PD0166285 is identified to inhibit Wee1 activity at nanomolar concentrations. The inhibitor abrogates G2/M checkpoint inducing early cell division. At the cellular level, 0.5 μM PD0166285 dramatically inhibits irradiation-induced Cdc2 phosphorylation at the Tyr-15 and Thr-14 in seven of seven cancer cell lines tested. This G2 checkpoint abrogation by PD0166285 is demonstrated to kill cancer cells. PD0166285 does not inhibit Cdc2/cyclin B but inhibits Chk1 kinase at a much higher concentration (3433 nM). the treatment of cells with the inhibitor is related to microtubule stabilization and decrease in cyclin D transcription. Thus, PD0166285 may be a potentially useful anti-cancer therapy[1][2].
In vivo
PD0166285 at 0.5 μM concentration can inhibit Cdc2Y15 /T14 phosphorylation in all cell lines tested, regardless of their p53 status[1] and pharmacological targeting of WEE1 by PD0166285 sensitizes U251-FM GBM tumors to IR in vivo[3].
Kinase Assay
Wee1 Mass Screening: Wee1 mass screening is performed using Amersham's p34cdc2 kinase SPA kit with some modifications. Briefly, 45–60 nM full-length Wee1 kinase is incubated with 25 μM compounds, 20 μM ATP, and 122–441 nM Cdc2/cyclin B in a final volume of 50 μl of enzyme dilution buffer [50 mM Tris (pH 8.0), 10 mM NaCl, 10 mM MgCl2, 1 mM DTT, and 0.1 mM Na3VO4]. After 30 min incubation at 30°C, 30 μl of [33P]ATP containing kinase buffer [67 mM Tris (pH 8.0), 40 mM NaCl, 13 mM MgCl2, 1 mM DTT, and 0.13 mM Na3VO4] containing 1 μM biotinylated peptide, and 0.25 μCi of [γ-33P]ATP is added to the reaction and incubated for another 30 min at 30°C. The reaction is stopped by adding 200 μl of stop buffer [50 μM ATP, 5 mM EDTA, 0.1% Triton X-100, and 1.25 mg/ml SPA beads in PBS]. After centrifugation at 2400 rpm for 15 min, the plate is counted with Wallac's Microbeta counter.
Cell Research
B16 cells (1 × 105 cells in 100 mm-dishes) are maintained in medium overnight. In addition, the cells are treated with (0, 0.5, 1.0, or 2.0 μM) PD0166285 (including DMSO vehicle) for indicated times. The cells are washed twice with phosphate-buffered saline (PBS). Next, the cells are trypsinized, so the cell numbers in each dish are determined by using a computed cell-counter (Sysmex CDA-500) according to manufacturer's recommendation. (Only for Reference)
Animal Research
E98 tumor fragments (8 mm3) were grafted subcutaneously in the flank of Balb/C nude mice (n = 10). For the experiments with the orthotopic tumors, U251 mg and E98 cells were transduced to express Fluc and mCherry, to generate U251-FM and E98-FM cells. One million cells were injected intracranially. Starting at 12 days after tumor inoculation, mice received the WEE1 inhibitor PD0166285 via intraperitoneal injections (500 μl of a 20 μM solution diluted in NaCl) or vehicle for 5 consecutive days. On days 10–15, mice were irradiated with a single dose of irradiation.
AliasPD-166285
Chemical Properties
Molecular Weight512.43
FormulaC26H27Cl2N5O2
Cas No.185039-89-8
Storage & Solubility Information
StoragePowder: -20°C for 3 years | In solvent: -80°C for 1 year
Solubility Information
Ethanol: 93 mg/mL (181.5 mM)
DMSO: 93 mg/mL (181.5 mM)
H2O: < 1 mg/mL (insoluble or slightly soluble)
Solution Preparation Table
Ethanol
1mg5mg10mg50mg
1 mM1.9515 mL9.7574 mL19.5149 mL97.5743 mL
5 mM0.3903 mL1.9515 mL3.9030 mL19.5149 mL
10 mM0.1951 mL0.9757 mL1.9515 mL9.7574 mL
20 mM0.0976 mL0.4879 mL0.9757 mL4.8787 mL
50 mM0.0390 mL0.1951 mL0.3903 mL1.9515 mL
100 mM0.0195 mL0.0976 mL0.1951 mL0.9757 mL

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