KU-60019

Catalog No.S1570 Batch:S157011

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Technical Data

Formula

C30H33N3O5S
Molecular Weight 547.67 CAS No. 925701-49-1
Solubility (25°C)* In vitro DMSO 100 mg/mL (182.59 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
5.0mg/ml Taking the 1 mL working solution as an example, add 50 μL of 100 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to make it clear; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
* <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.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description KU-60019 is an improved analogue of KU-55933, with IC50 of 6.3 nM for ATM in cell-free assays, 270- and 1600-fold more selective for ATM than DNA-PK and ATR,and is a highly effective radiosensitizer.
Targets
ATM [1]
(Cell-free assay)
6.3 nM
In vitro

Compared to KU-55933, KU-60019 is an improved inhibitor of the ATM kinase, while displaying similar target selectivity. KU-60019 has little activity against DNA-PKcs and ATR with IC50 values of 1.7 μM and >10 μM, respectively, as well as 229 other protein kinases such as PI3K, mTOR and mTOR/FKBP12. KU-60019 displays 3- to 10-fold more potency than KU-55933 at blocking radiation-induced phosphorylation of key ATM protein targets such as p53, γ-H2AX, and CHK2, in human glioma U87 and U1242 cells, as 1 μM of KU-60019 significantly induces >70% decrease of p53 (S15) phosphorylation to which extent ~10 μM of KU-55933 is required to achieve. KU-60019 effectively radiosensitizes human glioma cells with dose-enhancement ratio of 1.7 and 4.4 at 1 μM and 10 μM, respectively, and also radiosensitizes the normal fibroblasts but not the A-T fibroblasts. KU-60019 treatment (3 μM) blocks basal and insulin-induced AKT S473 phosphorylation by 70% and ~50%, respectively, and completely reduces radiation-induced AKT phosphorylation below the level of control. The effect of KU-60019 on AKT S473 phosphorylation can be seen in glioma cell lines and normal fibroblasts but not in A-T (h-TERT) cells, and can be significantly blocked by phosphatase inhibitor okadaic acid, suggesting a critical role of ATM kinase in regulating AKT phosphorylation via unknown phosphatase. Consistent with the inhibition of prosurvival AKT signaling, KU-60019 at 3 μM significantly inhibits migration and invasion of human glioma U87 cells by >70% and ~60%, respectively, as well as U1242 cells by >50% and ~60% respectively. [1]
In vivo

In orthotopic glioma U1242/luc-GFP xenograft models, the combination of KU-60019 and radiation significantly increases survival of mice than KU-60019 alone, radiation alone, or no treatment. In addition, p53-mutant gliomas is much more sensitive to KU-60019 radiosensitization than wild-type glioma. [2]
Features Improved analog of KU-55933, and is more effective at blocking ATM-mediated DDR events.

Protocol (from reference)

Cell Assay:

[1]
  • Cell lines

    U87 and U1242

  • Concentrations

    Dissolved in water, final concentrations ~3 μM

  • Incubation Time

    1, 3, and 5 days

  • Method

    Cells are exposed to KU-60019 for 1, 3, and 5 days. Cell growth is determined by AlamarBlue. AlamarBlue is added to the medium to the recommended final concentration. Plates are incubated for 1 hour at 37 °C, fluorescence is determined on a Fluoro-Count plate reader (excitation 530 nm, emission 590 nm), and values are taken as a measure of cell growth. Cell survival is determined by trypan blue/fluorescence activated cell sorting (FACS) assay.
Animal Study:

[2]
  • Animal Models

    Athymic female mice harboring orthotopic glioma U1242/luc-GFP tumors or human glioma U1242/luc-GFP tumors

  • Dosages

    KU-60019 (10 μM) is delivered at a rate of 0.5 μL/h by osmotic pump; KU-60019 (250 μM) in 12.5 μL is infused by CED.

  • Administration

    Administered intratumorally by convection-enhanced delivery or osmotic pump

Customer Product Validation

Data from [Brain Pathol, 2012, 22(5), 677-88]

Data from [Data independently produced by , , Brain Pathol, 2012, 22(5): 677-88 ]

Data from [Data independently produced by , , Brain Pathol, 2012, 22(5): 677-88 ]

Data from [Data independently produced by , , Nat Commun, 2016, 7:13701]

Selleck's KU-60019 has been cited by 144 publications

ATM inhibition enhance immunotherapy by activating STING signaling and augmenting MHC Class I [ Cell Death Dis, 2024, 15(7):519] PubMed: 39033176
Loss of POLE3-POLE4 unleashes replicative gap accumulation upon treatment with PARP inhibitors [ Cell Rep, 2024, 43(5):114205] PubMed: 38753485
Simple aneuploidy evades p53 surveillance and promotes niche factor-independent growth in human intestinal organoids [ Mol Biol Cell, 2024, 35(8):br15] PubMed: 38985518
Replicative senescence is ATM driven, reversible, and accelerated by hyperactivation of ATM at normoxia [ bioRxiv, 2024, 2024.06.24.600514] PubMed: 38979390
RHOJ controls EMT-associated resistance to chemotherapy [ Nature, 2023, 616(7955):168-175] PubMed: 36949199
Pre-rRNA Facilitates TopBP1-Mediated DNA Double-Strand Break Response [ Adv Sci (Weinh), 2023, 10(28):e2206931] PubMed: 37582658
Inhibition of CDK12 elevates cancer cell dependence on P-TEFb by stimulation of RNA polymerase II pause release [ Nucleic Acids Res, 2023, 51(20):10970-10991] PubMed: 37811895
ABL1 kinase as a tumor suppressor in AML1-ETO and NUP98-PMX1 leukemias [ Blood Cancer J, 2023, 13(1):42] PubMed: 36959186
Combination Therapies with CDK4/6 Inhibitors to Treat KRAS-Mutant Pancreatic Cancer [ Cancer Res, 2023, 83(1):141-157] PubMed: 36346366
Combination Therapies with CDK4/6 Inhibitors to Treat KRAS-Mutant Pancreatic Cancer [ Cancer Res, 2023, 83(1):141-157] PubMed: 36346366

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.