AZD 6482 (KIN-193) 是一种有效的选择性 p

AZD 6482 (KIN-193) is a potent and selective p110β inhibitor with an IC₅₀ of 0.69 nM.

An in vitrokinase assay demonstrates that AZD 6482 (KIN-193) is highly potent in the inhibition of p110β’s kinase activity (IC₅₀of 0.69 nM) and has 200, 20, and 70-fold selectivity over p110α, p110δ, and p110γ isoforms, respectively. AZD 6482 also exhibits selectivity of ~80 fold over PI3K-C2β and DNA-PK and more than 1,000-fold over other phosphatidylinositol-3 kinase–related kinases (PIKKs). An inhibitor-kinase interaction profiling of AZD 6482 against a panel of 433 kinases using the KinomeScan approach demonstrates that AZD 6482 is highly selective in its interaction with PI3Ks. To determine whether AZD 6482 selectively targets PTEN-deficient tumors, the effect of AZD 6482 is tested on cell proliferation on a large panel of 422 cancer cell lines using high-throughput tumor cell line profiling. 35% of cell lines with PTEN mutations (20 out of 57) and 16% of cell lines with wild-type PTEN (58 out of 365) are sensitive to AZD 6482 with a threshold of EC₅₀<5 µM^[1].

To determine the pharmacodynamics of AZD 6482 (KIN-193) in tumors in vivo, rat fibroblast (Rat1) cells are engineered to express both p53DD, a dominant negative mutant of p53, and a constitutively activated myr-p110β (Rat1-CA-p110β) to enable these cells to form xenograft tumors in mice. For comparison, an isogenic Rat1 cell line expressing p53DD and myr-p110α (Rat1-CA-p110α) is also generated. Rat1-CA-p110α and Rat1-CA-p110β cells are introduced subcutaneously into the contralateral flanks of athymic mice such that tumors driven by activated p110α or p110β would be exposed to identical conditions and that concern about animal-to-animal variability could be eliminated. When tumors reach a volume of ~500 mm³, the tumor-bearing mice receives a single IP injection of AZD 6482 (10 mg/kg). The plasma concentration of AZD 6482 is highest at 1 hour post-injection and declined to undetectable levels by 4h. Concentrations of AZD 6482 in both the CA-p110α- and CA-p110β-driven tumors parallel the plasma concentrations. Analyses of tumor lysates harvested at various time points after AZD 6482 injection reveal that the phosphorylation of AKT is significantly reduced at 1hour after AZD 6482 injection in Rat1-CA-p110β tumors, but remain unchanged in Rat1-CAp110α tumors^[1].

408.45

Solid

C₂₂H₂₄N₄O₄

1173900-33-8

Room temperature in continental US; may vary elsewhere.

DMSO : 50 mg/mL (122.41 mM; Need ultrasonic)

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• 1.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (6.12 mM); Clear solution

   

  此方案可获得 ≥ 2.5 mg/mL (6.12 mM，饱和度未知) 的澄清溶液。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；向上述体系中加入50 μL Tween-80，混合均匀；然后继续加入 450 μL生理盐水定容至 1 mL。

• 2.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (6.12 mM); Clear solution

   

  此方案可获得 ≥ 2.5 mg/mL (6.12 mM，饱和度未知) 的澄清溶液，此方案不适用于实验周期在半个月以上的实验。

  以 1 mL 工作液为例，取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中，混合均匀。

• [1]. Ni J, et al. Functional characterization of an isoform-selective inhibitor of PI3K-p110β as a potential anticancer agent. Cancer Discov. 2012 May;2(5):425-33.  [Content Brief]