1. Cell Cycle/DNA Damage Apoptosis
  2. CDK Apoptosis
  3. Samuraciclib

Samuraciclib (CT7001) is a potent, selective, ATP-competitive and orally active CDK7 inhibitor, with an IC50 of 41 nM. Samuraciclib displays 45-, 15-, 230- and 30-fold selectivity over CDK1, CDK2 (IC50 of 578 nM), CDK5 and CDK9, respectively. Samuraciclib inhibits the growth of breast cancer cell lines with GI50 values between 0.2-0.3 µM. Samuraciclib has anti-tumor effects.

At equivalent molar concentrations, both the salt and free forms of a compound exhibit comparable biological activity. Nevertheless, the salt form (Samuraciclib hydrochloride, Samuraciclib hydrochloride hydrate and Samuraciclib hydrochloride hydrate) usually boasts enhanced water solubility and stability.

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Samuraciclib Chemical Structure

Samuraciclib Chemical Structure

CAS No. : 1805833-75-3

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Top Publications Citing Use of Products

    Samuraciclib purchased from MedChemExpress. Usage Cited in: J Cancer Res Clin Oncol. 2022 Nov 18.  [Abstract]

    Colony-formation assay. Samuraciclib (5, 10, 20, 50, 100 nM; 7 days) signifcantly inhibits the colony-formation ability of the two CRPC models (C4-2 and 22RV1).

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    Description

    Samuraciclib (CT7001) is a potent, selective, ATP-competitive and orally active CDK7 inhibitor, with an IC50 of 41 nM. Samuraciclib displays 45-, 15-, 230- and 30-fold selectivity over CDK1, CDK2 (IC50 of 578 nM), CDK5 and CDK9, respectively. Samuraciclib inhibits the growth of breast cancer cell lines with GI50 values between 0.2-0.3 µM. Samuraciclib has anti-tumor effects[1][2].

    IC50 & Target[1][2]

    CDK7/CycH/MAT1

    41 nM (IC50)

    CDK2/cycE1

    578 nM (IC50)

    CDK1

    1.8 μM (IC50)

    CDK4

    49 μM (IC50)

    CDK5

    9.4 μM (IC50)

    CDK6

    34 μM (IC50)

    CDK9

    1.2 μM (IC50)

    In Vitro

    Samuraciclib (ICEC0942; 0-10 µM; 24 hours; HCT116 cells) treatment promotes cell apoptosis[1].
    Samuraciclib (ICEC0942; 0-10 µM; 24 hours; HCT116 cells) treatment induces cell cycle arrest[1].
    Samuraciclib (ICEC0942; 0-10 µM; 0-24 hours; HCT116 cells) treatment inhibits the phosphorylation of PolII CTD in a dose and time dependent manner in HCT116 colon cancer cells. Samuraciclib also inhibits phosphorylation of CDK1, CDK2 and retinoblastoma[1].
    Samuraciclib (ICEC0942) inhibits the growth of MCF7, T47D, MDA-MB-231, HS578T, MDA-MB-468, MCF10A and HMEC cells with GI50 values of 0.18 µM, 0.32 µM, 0. 33 µM, 0.21 µM, 0.22 µM, 0.67 µM and 1.25 µM, respectively[1].

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

    Apoptosis Analysis[1]

    Cell Line: HCT116 cells
    Concentration: 0 µM, 0.1 µM, 1 µM and 10 µM
    Incubation Time: 24 hours
    Result: Induced caspase 3/7 and demonstrated PARP cleavage.

    Cell Cycle Analysis[1]

    Cell Line: HCT116 cells
    Concentration: 0 µM, 0.01 µM, 0.1 µM, 1 µM and 10 µM
    Incubation Time: 24 hours
    Result: Showed accumulation of cells in G2/M.

    Western Blot Analysis[1]

    Cell Line: HCT116 cells
    Concentration: 0 µM, 0.1 µM, 1 µM and 10 µM
    Incubation Time: 0 hour, 4 hours, 8 hours, 16 hours or 24 hours
    Result: PolII CTD phosphorylation was inhibited in a dose and time dependent manner in HCT116 colon cancer cells.
    In Vivo

    Samuraciclib (ICEC0942; 100 mg/kg; oral gavage; daily; for 14 days; female nu/nu-BALB/c athymic nude mice) treatment inhibits tumor growth by 60% at day 14, and is accompanied by highly significant reductions in PolII Ser2 and Ser5 phosphorylation in PBMCs and in tumors[1].
    The combination of Samuraciclib (ICEC0942) and ICI 47699 treatment shows complete growth arrest of estrogen receptor (ER)-positive tumor xenografts[1].

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

    Animal Model: Female nu/nu-BALB/c athymic nude mice (7-week old) with MCF7 cells[1].
    Dosage: 100 mg/kg
    Administration: Oral gavage; daily; for 14 days
    Result: At day 14, tumor growth was inhibited by 60%.
    Clinical Trial
    Molecular Weight

    394.51

    Formula

    C22H30N6O

    CAS No.
    SMILES

    O[C@H]1CNCC[C@@H]1CNC2=NC3=C(C(C)C)C=NN3C(NCC4=CC=CC=C4)=C2

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    Please store the product under the recommended conditions in the Certificate of Analysis.

    Purity & Documentation
    References
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    Samuraciclib Related Classifications

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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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