Niraparib (MK-4827)

製品コードS2741 バッチS274105

印刷

化学情報

Chemical Structure Synonyms Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C19H20N4O
分子量 320.39 CAS No. 1038915-60-4
Solubility (25°C)* 体外 Ethanol 64 mg/mL (199.75 mM)
DMSO (warmed with 50ºC water bath) 50 mg/mL (156.05 mM)
Water Insoluble
体内 （毎回新しく調製した物を用意してください）
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
2.5mg/ml Taking the 1 mL working solution as an example, add 50 μL of 50 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to make it clear; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. 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.

溶剤液（一定の濃度）を調合する

生物活性

製品説明 ニラパリブ (Niraparib (MK-4827)) は PARP1/2 の選択的阻害剤 (IC50 = 3.8 nM/2.1 nM) であり、変異型 BRCA-1 および BRCA-2 を持つ癌細胞で高い活性を示します。PARP3, V-PARP, Tank1 に比べて 330 倍以上の選択性があります。 ニラパリブは PARP-DNA 複合体を形成し、DNA損傷、アポトーシス (apoptossis)、および細胞死を引き起こします。臨床フェーズ 3。
in vitro In a whole cell assay, MK-4827 inhibited PARP activity with EC50 = 4 nM and inhibited proliferation of cancer cells with mutant BRCA-1 and BRCA-2 with CC50 in the 10-100 nM range. It was demonstrated to be a potent and selective PARP-1 and PARP-2 inhibitor with IC50=3.8 and 2.1 nM, respectively. Furthermore, it displayed at least a 100-fold selectivity over PARP-3, V-PARP, and tankyrase-1, with IC50 = 1300, 330, and 570 nM, respectively. As well as inhibiting the growth of HeLa cell lacking BRCA-1 because of silencing by RNA interference, MK-4827 is able to inhibit the proliferation of cancer cell lines carrying natural BRCA-1 or BRCA-2 mutations. In MDA-MB-436 human mammary gland adenocarcinoma cells carrying BRCA-1 mutations, MK-4827 displayed CC50 = 18 nM, while in CAPAN-1 human pancreatic adenocarcinoma cells, which are BRCA-2 mutant, MK-4827 displayed CC50 = 90 nM. In contrast, normal human prostate and mammary epithelial cells are resistant to MK-4827, displaying antiproliferative effects in the micromolar range, thereby demonstrating the very high selective cytotoxicity from these PARP inhibitors in BRCA-1 and -2 mutant cancer cells compared to surrounding tissue[2].
in vivo MK-4827, a novel, orally bioavailable, PARP-1 and PARP-2 inhibitor, strongly enhanced the effect of radiation on a variety of human tumor xenografts, both p53 wild type and p53 mutant[1]. It was well tolerated in vivo and demonstrated efficacy as a single agent in a xenograft model of BRCA-1 deficient cancer[2].

プロトコル(参考用のみ)

細胞アッセイ 細胞株 HeLa BRCA1-silenced cells
濃度 serial dilutions
反応時間 7 days
実験の流れ Proliferation assays were conducted in 96-well black viewplates, and 300 cells/well (250 cell/well for BRCA-1 wt) in culture medium, 190 μL/well (DMEM containing 10% FCS, 0.1 mg/mL penicillin-streptomycin, and 2 mM L-glutamine), were plated and incubated for 4 h at 37℃ under 5% CO2 atmosphere. Inhibitors were then added with serial dilutions, 10 μL/well to obtain the desired final compound concentration in 0.5% DMSO. The cells were then incubated for 7 days at 37℃ in 5% CO2 after which time viability was assessed. Briefly, with CellTiter-Blue solution prediluted 1:10 in medium, 100 μL/well was added and the cells left for 45 min at 37℃ under 5% CO2 and then a further 15 min at room temperature in the dark. The number of living cells was determined by reading the plate at fluorimeter, excitation at 550 nm and emission at 590 nm. Cell growth was expressed as the percentage growth with respect to vehicle treated cells. The concentration required to inhibit cell growth by 50% (CC50) was determined.
動物実験 動物モデル Female nude mice
投薬量 25 mg/kg twice daily or 50 mg/kg once daily
投与方法 oral administration

カスタマーフィードバック

Data from [Oncogene, 2013, 32(47):5377-87]

Data from [Data independently produced by , , Theranostics, 2017, 7(17):4340-4349]

Data from [Data independently produced by , , Cancer Lett, 2018, 432:84-92]

Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：

Aggregability of the SQSTM1/p62-based aggresome-like induced structures determines the sensitivity to parthanatos [ Cell Death Discov, 2024, 10(1):74] PubMed: 38346947
Human Fallopian Tube-Derived Organoids with TP53 and RAD51D Mutations Recapitulate an Early Stage High-Grade Serous Ovarian Cancer Phenotype In Vitro [ Int J Mol Sci, 2024, 25(2)886] PubMed: 38255960
Repression of LSD1 potentiates homologous recombination-proficient ovarian cancer to PARP inhibitors through down-regulation of BRCA1/2 and RAD51 [ Nat Commun, 2023, 10.1038/s41467-023-42850-x] PubMed: 37973845
BRCA2 Germline Mutations Identify Gastric Cancers Responsive to PARP Inhibitors [ Cancer Res, 2023, 83(10):1699-1710] PubMed: 37129948
Unravelling homologous recombination repair deficiency and therapeutic opportunities in soft tissue and bone sarcoma [ EMBO Mol Med, 2023, e16863.] PubMed: 36779660
PARP inhibitor exerts an anti-tumor effect via LMO2 and synergizes with cisplatin in natural killer/T cell lymphoma [ BMC Med, 2023, 21(1):253] PubMed: 37442994
PARP inhibitor shuts down the global translation of thyroid cancer through promoting Pol II binding to DIMT1 pause [ Int J Biol Sci, 2023, 19(12):3970-3986] PubMed: 37564214
PBRM1 mutations might render a subtype of biliary tract cancers sensitive to drugs targeting the DNA damage repair system [ NPJ Precis Oncol, 2023, 7(1):64] PubMed: 37400502
The effect of inhibition of receptor tyrosine kinase AXL on DNA damage response in ovarian cancer [ Commun Biol, 2023, 6(1):660] PubMed: 37349576
RAD51D Secondary Mutation-Mediated Resistance to PARP-Inhibitor-Based Therapy in HGSOC [ Int J Mol Sci, 2023, 24(19)14476] PubMed: 37833926

長期の保管のために-20°Cの下で製品を保ってください。

人間や獣医の診断であるか治療的な使用のためにでない。

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