PF-477736

製品コードS2904 バッチS290404

印刷

化学情報

Chemical Structure Synonyms PF-736, PF-00477736 Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C22H25N7O2
分子量 419.48 CAS No. 952021-60-2
Solubility (25°C)* 体外 DMSO 84 mg/mL (200.24 mM)
Water Insoluble
Ethanol Insoluble
* <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.

溶剤液（一定の濃度）を調合する

生物活性

製品説明 PF-477736 (PF-736, PF-00477736) is a selective, potent and ATP-competitive Chk1 inhibitor with Ki of 0.49 nM in a cell-free assay and also inhibits VEGFR2, Aurora-A, FGFR3, Flt3, Fms (CSF1R), Ret and Yes. It shows ~100-fold selectivity for Chk1 than Chk2.
in vitro

PF-477736 (128 nM) abrogates the camptothecin-induced DNA damage checkpoint in a dose-dependent manner in CA46 and HeLa cells. PF-477736 effectively abrogates the gemcitabine-induced S-phase arrest with a corresponding increase in apoptotic cell populations in HT29 cells. PF-477736 (540 nM) enhances gemcitabine-induced cytotoxicity in a time- and dose-dependent manner in HT29 cells. PF-477736 potentiates the growth-inhibitory activity of a panel of chemotherapeutic agents across a broad spectrum of p53-deficient human cancer cell lines in the MTT assay. Addition of PF-477736 (360 nM) to gemcitabine-arrested cells induces a dramatic increase in the intensity of H2AX phosphorylation, reflecting a greater number of γ-H2AX molecules near sites of DNA damage. [1] PF-477736 (0.5 nM) selectively blocks p73 and P53 phosphorylation in presence of curcumin in HL-60 cells. [2] PF-477736 (360 nM) suppresses docetaxel-induced phosphorylation of histone H3 (Ser10) and Cdc25C (Ser216) and potentiates apoptosis in COLO205 cells. [3] PF-477736 (250 nM) combined with MK-1775 has marked synergistic cytotoxic activity in OVCAR-5 cells. PF-477736 (250 nM) combined with MK-1775 causes accumulation of cells with a DNA content between 2N and 4N in OVCAR-5 cells. PF-477736 (250 nM) combined with MK-1775 causes premature mitosis before the end of DNA replication, with damaged DNA leading to apoptotic cell death in OVCAR-5 cells. [4]
in vivo

PF-477736 (4 mg/kg i.v.) results in terminal half-life (T1/2) of 2.9 hours, AUC of 5.72 μg×hr/mL and CLp of 11.8 mL/min/kg in rats. PF-477736 dose-dependently enhances the antitumor activity of a maximum tolerated dose of gemcitabine in the Colo205 xenograft mouse model. PF-477736 (12 mg/kg) induces an increase in the phosphorylation of histone H3 (Ser10) and of phospho-histone H2AX in the Colo205 xenograft mouse model. [1] PF-477736 (15 mg/kg i.p.) enhances docetaxel induced tumor growth inhibition and tumor growth delay in COLO205 and MDA-MB-231 xenograft models. [3] PF 477736 (10 mg/kg once daily i.p.) combined with MK-1775 (30 mg/kg twice a day oral) leads to greater tumor growth inhibition in mice bearing OVCAR-5 xenografts. [4]

プロトコル(参考用のみ)

キナーゼアッセイ Binding assay
The assay is performed in a 96-well plate for 20 minutes at 30℃ in 0.1 mL of assay buffer containing 50 mM TRIS pH 7.5, 0.4 M NaCl, 4 mM PEP, 0.15 mM NADH, 28 units of lactate dehydrogenase/mL, 16 units of pyruvate kinase/mL, 3 mM DTT, 0.125 mM Syntide-2, 0.15 mM ATP and 25 mM magnesium chloride. Assays are initiated with 1 nM of CHK1 kinase domain. The inhibition of CHK1 activity is determined by measuring initial velocities in the presence of varying concentrations of PF-477736. The data is analyzed using Enzyme Kinetic and Excel software and fit to a kinetic model for competitive inhibition to obtain a Ki value. The kinase selectivity of PF-477736 is evaluated by screening the compound at 1 μM or 10 μM against a panel 2 of about 100 protein kinases.
細胞アッセイ 細胞株 HT29, Colo205, PC-3, MDA-MB-231 and K562 cells
濃度 ~1 μM
反応時間 96 hours
実験の流れ

The IC50 assay measures the antiproliferative effects of PF-477736 on p53-defective human cancer cell lines. Cells in each line are seeded in complete medium at an exponentially growing density in 96-well assay plate and allowed to attach for 16 hours. Serial dilutions of PF-477736 are then done, and appropriate controls are added to each plate. Cells are incubated with drug for 96 hours. After incubation, MTT working stock diluted in complete medium is added to each well, and cells are incubated for 4 hours. After centrifugation and supernatant removal, DMSO is added to each well and plates are read on SpectraMax plate reader at 540 nm.
動物実験 動物モデル Colo205 xenograft mouse model
投薬量 40 mg/kg
投与方法 intravenous injection

カスタマーフィードバック

Data from [Data independently produced by , , BMC Cancer, 2015, 10.1186/s12885-015-1231-z]

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：

Mild replication stress causes premature centriole disengagement via a sub-critical Plk1 activity under the control of ATR-Chk1 [ Nat Commun, 2023, 14(1):6088] PubMed: 37773176
BRD7 suppresses tumor chemosensitivity to CHK1 inhibitors by inhibiting USP1-mediated deubiquitination of CHK1 [ Cell Death Discov, 2023, 9(1):313] PubMed: 37626049
The p38/MK2 Pathway Functions as Chk1-Backup Downstream of ATM/ATR in G2-Checkpoint Activation in Cells Exposed to Ionizing Radiation [ Cells, 2023, 12(10)1387] PubMed: 37408221
Deregulation and epigenetic modification of BCL2-family genes cause resistance to venetoclax in hematologic malignancies [ Blood, 2022, blood.2021014304] PubMed: 35704690
Resistance to ATR Inhibitors Is Mediated by Loss of the Nonsense-Mediated Decay Factor UPF2 [ Cancer Res, 2022, 82(21):3950-3961] PubMed: 36273492
Benchmarking AlphaFold-enabled molecular docking predictions for antibiotic discovery [ Mol Syst Biol, 2022, 18(9):e11081] PubMed: 36065847
Combined inhibition of EZH2 and ATM is synthetic lethal in BRCA1-deficient breast cancer [ Breast Cancer Res, 2022, 24(1):41] PubMed: 35715861
The SKP2-p27 axis defines susceptibility to cell death upon CHK1 inhibition [ Mol Oncol, 2022, 16(15):2771-2787] PubMed: 35673965
Determining the Potential of DNA Damage Response -DDR Inhibitors in Cervical Cancer Therapy [ Cancers -Basel, 2022, 14-174288] PubMed: 36077823
Shift in G1-Checkpoint from ATM-Alone to a Cooperative ATM Plus ATR Regulation with Increasing Dose of Radiation [ Cells, 2021, 11(1)63] PubMed: 35011623

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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