1. Cell Cycle/DNA Damage
    Epigenetics
    Apoptosis
  2. PARP
    Apoptosis
  3. Niraparib tosylate

Niraparib tosylate (Synonyms: 尼拉帕尼对苯甲磺酸盐; MK-4827 tosylate)

目录号: HY-10619B 纯度: 99.81%
产品使用指南

Niraparib tosylate (MK-4827 tosylate) 是一种高效的,具有生物口服利用度的 PARP1PARP2 抑制剂,IC50 分别为 3.8 和 2.1 nM。Niraparib tosylate 抑制 DNA 损伤修复,诱导凋亡 (apoptosis) 并具有抗肿瘤活性。

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Niraparib tosylate Chemical Structure

Niraparib tosylate Chemical Structure

CAS No. : 1038915-73-9

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Top Publications Citing Use of Products

MCE 顾客使用本产品发表的 42 篇科研文献

    Niraparib tosylate purchased from MCE. Usage Cited in: Cancer Chemother Pharmacol. 2017 Oct;80(4):861-867.

    PARP1 inhibition is lethal to MPM cells. Colony formation assays of clonal cell survival with continuous Niraparib or AZD2281.

    Niraparib tosylate purchased from MCE. Usage Cited in: Appl Microbiol Biotechnol. 2019 Dec;103(23-24):9557-9568.

    Cyclin D is evaluated via western blot analysis in different cell lines with the treatment of Niraparib in different concentrations and times.

    Niraparib tosylate purchased from MCE. Usage Cited in: Appl Microbiol Biotechnol. 2019 Dec;103(23-24):9557-9568.

    CDK4 is evaluated via western blot analysis in different cell lines with the treatment of Niraparib in different concentrations and times.
    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    Niraparib tosylate (MK-4827 tosylate) is a highly potent and orally bioavailable PARP1 and PARP2 inhibitor with an IC50 of 3.8 and 2.1 nM, respectively. Niraparib tosylate leads to inhibition of repair of DNA damage, activates apoptosis and shows anti-tumor activity[1][2][3].

    IC50 & Target

    PARP-2

    2.1 nM (IC50)

    PARP-1

    3.8 nM (IC50)

    V-PARP

    330 nM (IC50)

    TANK-1

    570 nM (IC50)

    PARP-3

    1300 nM (IC50)

    体外研究
    (In Vitro)

    Niraparib (MK-4827) inhibits PARP activity with EC50=4 nM and EC90=45 nM in a whole cell assay. MK-4827 inhibits proliferation of cancer cells with mutant BRCA-1 and BRCA-2 with CC50 in the 10−100 nM range. MK-4827 displays excellent PARP 1 and 2 inhibition with IC50=3.8 and 2.1 nM, respectively, and in a whole cell assay[1]. To validate that Niraparib (MK-4827) inhibits PARP in these cell lines, A549 and H1299 cells are treated with 1 μM Niraparib (MK-4827) for various times and measured PARP enzymatic activity using a chemiluminescent assay. The results show that Niraparib (MK-4827) inhibits PARP within 15 minutes of treatment reaching about 85% inhibition in the A549 cells at 1 h and about 55% inhibition at 1 h for the H1299 cells[2].

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

    体内研究
    (In Vivo)

    Niraparib (MK-4827) is well tolerated and demonstrates efficacy as a single agent in a xenograft model of BRCA-1 deficient cancer. Niraparib (MK-4827) is well tolerated in vivo and demonstrates efficacy as a single agent in a xenograft model of BRCA-1 deficient cancer. Niraparib (MK-4827) is characterized by acceptable pharmacokinetics in rats with plasma clearance of 28 (mL/min)/kg, very high volume of distribution (Vdss=6.9 L/kg), long terminal half-life (t1/2=3.4 h), and excellent bioavailability, F=65%[1]. Niraparib (MK-4827) enhances radiation response of p53 mutant Calu-6 tumor in both cases, with the single daily dose of 50 mg/kg being more effective than 25 mg/kg given twice daily[3].

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

    Clinical Trial
    分子量

    492.59

    Formula

    C26H28N4O4S

    CAS 号
    中文名称

    尼拉帕尼对苯甲磺酸盐

    运输条件

    Room temperature in continental US; may vary elsewhere.

    储存方式

    4°C, sealed storage, away from moisture

    *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

    溶解性数据
    In Vitro: 

    DMSO : 200 mg/mL (406.02 mM; Need ultrasonic)

    H2O : 1 mg/mL (2.03 mM; heat to 50°C)

    配制储备液
    浓度 溶剂体积 质量 1 mg 5 mg 10 mg
    1 mM 2.0301 mL 10.1504 mL 20.3009 mL
    5 mM 0.4060 mL 2.0301 mL 4.0602 mL
    10 mM 0.2030 mL 1.0150 mL 2.0301 mL
    *

    请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效
    储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

    In Vivo:

    请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂:

    ——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
    分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

    • 1.

      请依序添加每种溶剂: 5% DMSO    40% PEG300    5% Tween-80    50% saline

      Solubility: ≥ 2.5 mg/mL (5.08 mM); Clear solution

    • 2.

      请依序添加每种溶剂: 5% DMSO    95% (20% SBE-β-CD in saline)

      Solubility: ≥ 2.5 mg/mL (5.08 mM); Clear solution

    • 3.

      请依序添加每种溶剂: 1% DMSO    99% saline

      Solubility: ≥ 0.5 mg/mL (1.02 mM); Clear solution

    *以上所有助溶剂都可在 MCE 网站选购。
    参考文献
    Cell Assay
    [2]

    The inhibition of PARP is analyzed in A549 and H1299 cells using the HT Universal Chemiluminescent PARP Assay Kit. Briefly, cells are treated with DMSO or 1 μM Niraparib (MK-4827) for 15, 30, 60, or 120 minutes, trypsinized, and transferred to a pre-chilled tube. The cells are washed twice with ice cold PBS and resuspended in cold PARP extraction buffer. The cell suspensions are incubated on ice for 30 minutes with periodic vortexing to disrupt the cell membrane. The suspensions are centrifuged and the supernatant transferred to a pre-chilled tube on ice. The histone coated wells of the 96-well plate are rehydrated with 1X PARP buffer and incubated at room temperature for 30 minutes. The PARP buffer is removed and 20 μg of protein as determined by the Bio-Rad Protein Assay is added to each well followed by diluted PARP-HSA enzyme and 1X PARP buffer. The strip wells are then incubated at room temperature for 60 minutes, washed twice with PBS containing 0.1% Triton X-100, and then washed with PBS. Diluted Strep-HRP is added to the strip wells and incubated for 60 minutes at room temperature. The wells are washed again as before. Equal volumes of PeroxyGlow A and B are combined and added to the wells and chemiluminescent readings are obtained immediately using a plate-reader[2].

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

    Animal Administration
    [3]

    Mice[3]
    Female nude mice (Ncr Nu/Nu) are randomly assigned to treatment groups consisting of 5 to 8 mice each when tumors grew to 6.0 mm in diameter at which time treatment with MK-4827 is initiated. MK-4827 is given at a dose of 25 mg/kg twice daily or 50 mg/kg once daily for either 21 days or is discontinued at 9 days from the time tumors reached 8 mm in diameter. Fractionated local tumor irradiation (XRT) is given when tumors reach 8.0 mm in diameter (7.7-8.2 mm). Radiation (2 Gy per fraction) is delivered to the tumor-bearing leg of mice once daily for 14 consecutive days or twice daily for 7 consecutive days using a small-animal irradiator consisting of two parallel-opposed 137Cs sources, at a dose rate of 5 Gy/min. During irradiation un-anesthetized mice are mechanically immobilized in a jig so that the tumor is centered within a 3.0 cm diameter radiation field and the animal’s body shielded from radiation exposure. On the day when both MK-4827 and radiation are given, drug is administered 1 h before the first radiation dose of the day.

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

    参考文献

    纯度: 99.81%

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