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    PI3K/Akt/mTOR
  2. ATM/ATR
  3. Berzosertib

Berzosertib (Synonyms: VE-822; VX-970)

Cat. No.: HY-13902 Purity: 99.67%
Handling Instructions

Berzosertib (VE-822) is an ATR inhibitor with a Ki value of less than 0.2 nM. It also inhibits ATM with a Ki of 34 nM.

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

Berzosertib Chemical Structure

Berzosertib Chemical Structure

CAS No. : 1232416-25-9

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10 mM * 1 mL in DMSO USD 92 In-stock
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100 mg USD 540 In-stock
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200 mg USD 780 In-stock
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Customer Review

Based on 6 publication(s) in Google Scholar

Top Publications Citing Use of Products

    Berzosertib purchased from MCE. Usage Cited in: Eur J Med Chem. 2017 Feb 15;127:691-702.

    Relative cell viability (%) in MDCK CAIX- and CAIX+ cells exposed to ATR inhibitors (VE-821 and VE-822) or the CAIXi conjugated derivatives in combination with radiation during normoxia (21% O2) and anoxia (≤0.02% O2). Normoxic cells are irradiated with 2 Gy and anoxic cells with 4 Gy to induce similar effects on cell viability.

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    • References

    • Customer Review

    Description

    Berzosertib (VE-822) is an ATR inhibitor with a Ki value of less than 0.2 nM. It also inhibits ATM with a Ki of 34 nM.

    IC50 & Target[1]

    ATR

    0.2 nM (Ki)

    ATM

    34 nM (Ki)

    PI3Kγ

    220 nM (Ki)

    In Vitro

    Berzosertib (VE-822) also inhibits DNK-PA, mTOR, PI3Kγ with IC50 of >4, >1, and 0.22 μM, respectively. In PSN-1 and MiaPaCa-2 cells, Berzosertib (VE-822) inhibits ATR and ATM with IC50 of 19 nM and 2.6 μM, respectively. VE-822 (80 nM) reduces phospho-Ser345-Chk1 after NSC 613327 (100 nM), radiation (XRT) (6 Gy) or both in PDAC. Additionally, Berzosertib (VE-822) does not inhibit ATM, Chk2 or DNA-PK phosphorylation in response to radiation, which further supports the selectivity of Berzosertib (VE-822) for ATR. VE-822 decreases survival of irradiated PDAC (all lines used are p53-mutant; K-Ras mutant). Knock down of Chk1 by siRNA sensitizes PSN-1 and MiaPaCa-2 cells to radiation but the radiosensitising effect is less profound compare with Berzosertib (VE-822). Adding Berzosertib (VE-822) to NSC 613327 reduces survival ~2-3-fold and dramatically more after chemoradiotherapy[1].

    In Vivo

    PSN-1 xenografts are treated with Berzosertib (VE-822) (60 mk/kg; d0, 1), NSC 613327 (100 mg/kg; d0) and/or XRT (6 Gy; d1). Tumors are then harvested 2 h post-XRT. Berzosertib (VE-822) inhibits p-Ser-345-Chk1 in xenografts after DNA-damaging agents, establishing VE-822 as a potent inhibitor of ATR in vivo. Besides, Berzosertib (VE-822) enhances the therapeutic efficacy of radiation (XRT) in MiaPaCa-2 and PSN-1 xenograft models[1].

    Clinical Trial
    Molecular Weight

    463.55

    Formula

    C₂₄H₂₅N₅O₃S

    CAS No.

    1232416-25-9

    SMILES

    NC1=NC=C(C2=CC=C(S(=O)(C(C)C)=O)C=C2)N=C1C3=CC(C4=CC=C(CNC)C=C4)=NO3

    Shipping

    Room temperature in continental US; may vary elsewhere

    Storage
    Powder -20°C 3 years
      4°C 2 years
    In solvent -80°C 6 months
      -20°C 1 month
    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 35 mg/mL (75.50 mM)

    *"≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.1573 mL 10.7863 mL 21.5726 mL
    5 mM 0.4315 mL 2.1573 mL 4.3145 mL
    10 mM 0.2157 mL 1.0786 mL 2.1573 mL
    *Please refer to the solubility information to select the appropriate solvent.
    In Vivo:
    • 1.

      Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

      Solubility: ≥ 2.5 mg/mL (5.39 mM); Clear solution

    • 2.

      Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

      Solubility: ≥ 2.5 mg/mL (5.39 mM); Clear solution

    *All of the co-solvents are provided by MCE.
    References
    Cell Assay
    [1]

    NSC 613327 (10 nM) is added 24 h pre-XRT and is replaced with fresh medium before addition of Berzosertib (VE-822). PSN-1 cells are treated with Berzosertib (VE-822) (80 nM) for 1 h before, through to 18 h after, XRT (6 Gy). Apoptosis is analyzed 48 h after XRT by flow cytometry using an Annexin V-FITC kit with PI[1].

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

    Animal Administration
    [1]

    Mice[1]
    MiaPaCa-2 cells and PSN-1 cells (106 in 50 μL serum-free medium mixed with 50 μL of Matrigel) are inoculated subcutaneously in female Balb/c nude mice. When the xenograft tumors reach 80 mm3, the mice are randomized. Berzosertib (VE-822) (60 mg/kg) is administered by oral gavage on one of three alternate schedules; either daily on days 0-5 (total of six days dosing), daily on days 0 through to 3 (total of 4 days dosing) or on days 1, 3 and 5. XRT (6 Gy) is given either on days 0 or 1 or days 1-5 (total of 5 days dosing; 2 Gy). NSC 613327 is dosed at 100 mg/kg by intraperitoneal injection on day 0. XRT to the tumor is given 2 h after initiation of Berzosertib (VE-822) treatment.

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

    References

    Purity: 99.67%

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    Product Name:
    Berzosertib
    Cat. No.:
    HY-13902
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