Pilaralisib (XL147)

Catalog No.S7645 Batch:S764501

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Technical Data

Formula

C25H25ClN6O4S
Molecular Weight 541.02 CAS No. 934526-89-3
Solubility (25°C)* In vitro DMSO 100 mg/mL (184.83 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
10mM HCl in sterile water
0.5mg/ml Taking the 1 mL working solution as an example, add 0.5 mg of this product to 10 mM HCl solution, mix evenly to make it clear, 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.)

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Biological Activity

Description Pilaralisib (XL147) is a selective and reversible class I PI3K inhibitor for PI3Kα/δ/γ with IC50 of 39 nM/36 nM/23 nM in cell-free assays, less potent to PI3Kβ. Phase 1/2.
Targets
PI3Kγ [1] PI3Kβ [1] PI3Kδ [1] PI3Kα [1]
23 nM 36 nM 36 nM 39 nM
In vitro Pilaralisib exhibits cytotoxic activity in Pediatric Preclinical Testing Program (PPTP) cell lines, with a median relative IC50 value of 10.9 mM (range 2.7 mM to 24.5 mM).[2]
In vivo In BALB/c nu/nu mice, Pilaralisib (100 mg/kg, p.o.) induces tumor growth inhibition for solid glioma xenografts. Pilaralisib is well tolerated, with only 0.7% toxicity rate in the treated groups, similar to that observed for control animals.[2] In athymic female mouse, Pilaralisib (100 mg/kg, p.o.) significantly delays tumor growth without significant drug-related toxicity.[3]

Protocol (from reference)

Kinase Assay: [4]
  • In vitro kinase inhibition assays

    Kinase activity for PI3K isoforms is measured as the percentage of ATP consumed following the kinase reaction using luciferase–luciferin-coupled chemiluminescence, with ATP concentrations approximately equal to the Km for each respective kinase. Kinase reactions are initiated by combining test compounds, ATP and kinase in a 20 μL volume. PI3Kα, PI3Kβ, PI3Kγ, and PI3Kδ final enzyme concentrations are 0.5, 8, 20, and 2 nM, respectively. Of note, 0.5 μL dimethyl sulfoxide (DMSO) containing varying concentrations of the test compound is mixed with 10 μL enzyme solution (2×concentration). Kinase reactions are initiated by the addition of 10 μL of liver phosphatidylinositol and ATP solution (2×concentration). Assay concentrations for VPS34, ATP, and phosphatidylinositol are 40 nM, 1 μM, and 5 μM, respectively
Cell Assay:[5]
  • Cell lines

    BT474 cells

  • Concentrations

    6 μM

  • Incubation Time

    5 days

  • Method

    Cell proliferation is measured by using MTT or pre-mixed WST-1 reagent. For MTT/WST-1 assays, 10,000 cells/well are seeded in 96-well plates. 24 h after plating, cells are treated with DMSO or pilaralisib. After 5 days of treatment, MTT/WST-1 assays are performed.
Animal Study:[2]
  • Animal Models

    BALB/c nu/nu mice with glioma xenografts

  • Dosages

    100 mg/kg

  • Administration

    p.o.

Customer Product Validation

Data from [Data independently produced by , , Cancer Res, 2014, 74(18):5184-94]

Data from [Data independently produced by , , Cancer Res, 2014, 74(18):5184-5194.]

Data from [Data independently produced by , , J Cell Biochem, 2018, 119(8):6398-6407]

Selleck's Pilaralisib (XL147) has been cited by 15 publications

Signaling-induced systematic repression of miRNAs uncovers cancer vulnerabilities and targeted therapy sensitivity [ Cell Rep Med, 2023, S2666-3791(23)00367-1] PubMed: 37734378
Signaling-induced systematic repression of miRNAs uncovers cancer vulnerabilities and targeted therapy sensitivity [ Cell Rep Med, 2023, 4(10):101200] PubMed: 37734378
Functional Testing to Characterize and Stratify PI3K Inhibitor Responses in Chronic Lymphocytic Leukemia [ Clin Cancer Res, 2022, 28-20:4444-4455] PubMed: 35998013
In Vitro Angiogenesis Inhibition and Endothelial Cell Growth and Morphology [ Int J Mol Sci, 2022, 23(8)4277] PubMed: 35457095
Pharmacological inhibitors of anaplastic lymphoma kinase (ALK) induce immunogenic cell death through on-target effects [ Cell Death Dis, 2021, 12(8):713] PubMed: 34272360
Comprehensive pharmacogenomic characterization of gastric cancer. [ Genome Med, 2020, 18;12(1):17] PubMed: 32070411
The PI3K/mTOR dual inhibitor GSK458 potently impedes ovarian cancer tumorigenesis and metastasis. [ Cell Oncol (Dordr), 2020, 8] PubMed: 32382996
High-Complexity shRNA Libraries and PI3 Kinase Inhibition in Cancer: High-Fidelity Synthetic Lethality Predictions [ Cell Rep, 2019, 27(2):631-647] PubMed: 30970263
Cellular Metabolic Heterogeneity In Vivo Is Recapitulated in Tumor Organoids [ Neoplasia, 2019, 21(6):615-626] PubMed: 31078067
CDKL5 promotes proliferation, migration, and chemotherapeutic drug resistance of glioma cells via activation of the PI3K/AKT signaling pathway. [ FEBS Open Bio, 2019, 10.1002/2211-5463] PubMed: 31858726

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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.

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