1. PI3K/Akt/mTOR
  2. PI3K mTOR
  3. PKI-402

PKI-402 is a selective, reversible, ATP-competitive inhibitor of PI3K, including PI3K-α mutants, and mTOR (IC50=2, 3, 7,14 and 16 nM for PI3Kα, mTOR, PI3Kβ, PI3Kδ and PI3Kγ).

For research use only. We do not sell to patients.

CAS No. : 1173204-81-3

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Customer Review

Based on 11 publication(s) in Google Scholar

Other Forms of PKI-402:

Top Publications Citing Use of Products

    PKI-402 purchased from MedChemExpress. Usage Cited in: Cell Prolif. 2019 May;52(3):e12609.  [Abstract]

    Huh7 cells were treated with 8 μg/mL cisplatin and/or 5 μmol/L PKI‐402 in the presence or absence of 5 μmol/L E‐64 for 24 h and then stained with MitoSOX Red and detected using flow cytometry.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    PKI-402 is a selective, reversible, ATP-competitive inhibitor of PI3K, including PI3K-α mutants, and mTOR (IC50=2, 3, 7,14 and 16 nM for PI3Kα, mTOR, PI3Kβ, PI3Kδ and PI3Kγ).

    IC50 & Target[1]

    PI3Kα

    2 nM (IC50)

    PI3Kα-H1047R

    3 nM (IC50)

    PI3Kα-E545K

    3 nM (IC50)

    PI3Kβ

    7 nM (IC50)

    PI3Kδ

    14 nM (IC50)

    PI3Kγ

    16 nM (IC50)

    mTOR

    3 nM (IC50)

    Cellular Effect
    Cell Line Type Value Description References
    MDA-MB-361 IC50
    10 nM
    Compound: 77
    Cytotoxicity against human MDA-MB-361 cells
    Cytotoxicity against human MDA-MB-361 cells
    [PMID: 25387153]
    MDA-MB-361 IC50
    5 nM
    Compound: 3, PKI-402
    Inhibition of Akt T308 phosphorylation in human MDA-MB-361 cells after 4 hrs by Western blotting
    Inhibition of Akt T308 phosphorylation in human MDA-MB-361 cells after 4 hrs by Western blotting
    [PMID: 19968288]
    MDA-MB-361 IC50
    8 nM
    Compound: 2, PKI-402
    Growth inhibition of human MDA-MB-361 cells after 72 hrs
    Growth inhibition of human MDA-MB-361 cells after 72 hrs
    [PMID: 21763134]
    MDA-MB-361 IC50
    8 nM
    Compound: 3, PKI-402
    Cytotoxicity against human MDA-MB-361 cells with Her2+/PI3KCA mutant after 72 hrs
    Cytotoxicity against human MDA-MB-361 cells with Her2+/PI3KCA mutant after 72 hrs
    [PMID: 19968288]
    PC-3 IC50
    21 nM
    Compound: 2, PKI-402
    Growth inhibition of human PC3 cells after 72 hrs
    Growth inhibition of human PC3 cells after 72 hrs
    [PMID: 21763134]
    PC-3 IC50
    21 nM
    Compound: 3, PKI-402
    Cytotoxicity against human PC3 cells with PTEN mutant after 72 hrs
    Cytotoxicity against human PC3 cells with PTEN mutant after 72 hrs
    [PMID: 19968288]
    Sf9 IC50
    1 nM
    Compound: 2, PKI-402
    Inhibition of human PI3Kalpha expressed in SF9 insect cells after 2 hrs by fluorescence polarization assay
    Inhibition of human PI3Kalpha expressed in SF9 insect cells after 2 hrs by fluorescence polarization assay
    [PMID: 21763134]
    Sf9 IC50
    9 nM
    Compound: 2, PKI-402
    Inhibition of human PI3Kgamma expressed in SF9 insect cells after 2 hrs by fluorescence polarization assay
    Inhibition of human PI3Kgamma expressed in SF9 insect cells after 2 hrs by fluorescence polarization assay
    [PMID: 21763134]
    In Vitro

    PKI-402 is an equipotent inhibitor of class I PI3K, including the E545K and H1047R PI3K-α mutants (IC50=2, 3 and 3 nM for PI3Kα, PI3Kα-H1047R and PI3Kα-E545K, respectively). PKI-402 causes in vitro growth inhibition of human tumor cell lines derived from a diverse set of human tumor tissues, including breast, brain (glioma), pancreas, and non-small cell lung cancer (NSCLC) tissues. PKI-402 inhibits MDA-MB-361 [breast: Her2+ and PIK3CA mutant (E545K)], with an IC50 of 6 nM. PKI-402 inhibits HCT116 (K-Ras and PIK3CA mutant) with an IC50 of 33 nM[1].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    In Vivo

    PKI-402 displays antitumor activity (i.v. route) in breast [MDA-MB-361: Her2+ and PIK3CA (E545K)], glioma (U87MG and PTEN), and NSCLC (A549; K-Ras and STK11) xenograft models. PKI-402 causes regression in the MDA-MB-361 xenograft model. PKI-402 effect is most pronounced at 100 mg/kg (daily for 5 days, one round), which reduces initial tumor volume and prevents tumor re-growth for 70 days. In MDA-MB-361 tumor tissue, PKI-402 at 100 mg/kg (single dose) fully suppresses p-Akt at both the T308 and the S473 sites at 8 hours and induces cleaved PARP. At 24 hours, p-Akt suppression is still evident, as is cleaved PARP[1].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Molecular Weight

    570.65

    Formula

    C29H34N10O3

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    CCN1N=NC2=C1N=C(N=C2N3CCOCC3)C4=CC=C(C=C4)NC(NC5=CC=C(C=C5)C(N6CCN(CC6)C)=O)=O

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 2 years
    -20°C 1 year
    Solvent & Solubility
    In Vitro: 

    DMSO : 5 mg/mL (8.76 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : < 0.1 mg/mL (insoluble)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 1.7524 mL 8.7619 mL 17.5239 mL
    5 mM 0.3505 mL 1.7524 mL 3.5048 mL
    View the Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    • Molarity Calculator

    • Dilution Calculator

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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    Molecular Weight *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

    ×
    Volume (start)

    V1

    =
    Concentration (final)

    C2

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    Volume (final)

    V2

    In Vivo:

    For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  50% PEG300    50% Saline

      Solubility: 1.43 mg/mL (2.51 mM); Suspended solution; Need ultrasonic

    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

    Dosage

    mg/kg

    Animal weight
    (per animal)

    g

    Dosing volume
    (per animal)

    μL

    Number of animals

    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Calculation results:
    Working solution concentration: mg/mL
    Purity & Documentation
    References
    Kinase Assay
    [1]

    Enzyme assays are done in fluorescent polarization (FP) format. Human class I PI3Ks and PI3K-α mutants (E545K and H1047R) are produced in Sf9. GST-GRP1 (murine) is produced in Escherichia coli and isolated by GST-Sepharose. Assay buffers are reaction buffer [20 mM HEPES (pH 7.1), 2 mM MgCl2, 0.05% CHAPS, and 0.01% β-mercaptoethanol] and stop/detection buffer [100 mM HEPES (pH 7.5), 4 mM EDTA, 0.05% CHAPS]. FP reaction is run for 30 min at room temperature in 20 μL of reaction buffer containing 20 μM phosphatidylinositol 4,5-bisphosphate (PIP2), 25 μM ATP, and <4% DMSO (compound solvent). FP reaction is stopped with 20 μL of stop/detection buffer (10 nM probe and 40 nM GST-GRP), and after 2 h, data are collected. Selectivity of PKI-402 is evaluated in the 236 human kinase panel at [ATP]=Km for each enzyme[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Cell Assay
    [1]

    MDA-MB-361, MDA-MB-468, T47D, MCF7, BT474, HT29, HCT116, DLD1, U87MG, H157, NCI-H460, A549, NCI-H1975, NCI-H1650, NCI-H2170, KB, 786-0, A498, MIA-PaCa-2, and PC3 cell lines are propagated at 37°C in 5% CO2 incubators in supplier-recommended growth medium. Cell growth inhibition is determined using the CellTiter 96 AQueous proliferation assay. Data are collected after 72 h using a Wallac Victor2 V 1420 multilabel HTS counter. FOXO-GFP translocation in U2OS cells is quantified after 60-min PKI-402 exposure using a Cellomics ArrayScan VTI Reader[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Administration
    [1]

    Mice[1]
    PKI-402 or vehicle is administered by i.v. route. Nude mice bearing MDA-MB-361 tumors are used. Tumor weight is calculated. Pharmacodynamic (biomarker) measurements are done on tumor-bearing female nude mice administered PKI-402. Tumor or normal tissue samples are collected from euthanized animals, homogenized, washed twice with cold (4°C) PBS, and then treated with cell lysis buffer[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    References

    Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 1.7524 mL 8.7619 mL 17.5239 mL 43.8097 mL
    5 mM 0.3505 mL 1.7524 mL 3.5048 mL 8.7619 mL
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    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    Product Name:
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    Cat. No.:
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