NU1025

Alias: NU 1025; NU1025; NU-1025
Cat No.:V0308 Purity: ≥98%
NU1025 is a novel, potent and selective inhibitor of poly (ADP-ribose) polymerase (PARP) inhibitor with potential anticancer activity.
NU1025 Chemical Structure CAS No.: 90417-38-2
Product category: PARP
This product is for research use only, not for human use. We do not sell to patients.
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

NU1025 is a novel, potent and selective inhibitor of poly(ADP-ribose) polymerase (PARP) with potential anticancer activity. It also exhibits strong in vivo antitumor efficacy and strong antiproliferative activity against a variety of cancer cells. In L1210 cells, NU1025 has the ability to increase the cytotoxicity of a variety of anti-cancer drugs.

Biological Activity I Assay Protocols (From Reference)
Targets
PARP ( IC50 = 400 nM ); PARP ( Ki = 48 nM )
ln Vitro

In vitro activity: NU1025 (0.2 mM) pretreatment raises the viability of H2O2 and SIN-1 injured cells to roughly 73% and 82%, respectively[1].
NU1025 increases the cytotoxicity of bleomycin, γ-irradiation, and the DNA-methylating agent MTIC in L1210 cells by 3.5, 1.4, and 2 fold, respectively. Moreover, NU 1025 inhibits plateau-phase cells' ability to recover from potentially fatal γ-irradiation damage cytotoxicity. Significantly less DNA repair occurs when NU1025 is present[2].

ln Vivo
NU1025 (1-3 mg/kg; intraperitoneal injection; male Sprague Dawley rats) treatment given one hour prior to reperfusion at 1 and 3 mg/kg reduces the total infarct volume to 25 percent and 45 percent, respectively. Neurological deficits also show a notable improvement with NU1025. Reversal of brain NAD depletion, reduction of DNA fragmentation, and decrease in PAR accumulation are linked to neuroprotection with NU1025[1].
Enzyme Assay
After 30 minutes on ice, cells are suspended in hypotonic buffer (9 mM HEPES, pH 7.8, 4.5% (v/v) dextran, 4.5 mM MgCl2, and 5 mM DTT) at 1.5 × 107/mL. Subsequently, 9 vol of isotonic buffer (40 mM HEPES, pH 7.8, 130 mM KCl, 4% (v/v) dextran, 2 mM EGTA, 2.3 mM MgCl2, 225 mM sucrose, and 2.5 mM DTT) is added. 2 mL of ice-cold 10% (w/v) TCA + 10% (w/v) sodium pyrophosphate is added to end the reaction, which was initiated by adding 300 µL cells to 100 µL 300 µM NAD+ containing [32P]-NAD+. The 32P-labelled ADP-ribose polymers that precipitate after 30 minutes on ice are filtered, five times cleaned with 1% (v/v) TCA and 1% (v/v) sodium pyrophosphate, dried, and counted.
Cell Assay
The indicated doses of NU1025 are applied after the cells (D54 and U251 cells) are seeded at a density of 2,500 cells/well in 96-well plates. A dose of 0.5 Gy/min of 250 kVp X-rays is applied to the medium containing adherent cells. The control group consists of untreated cells. Cell proliferation is measured using the MTT assay after an incubation period of up to five days.
Animal Protocol
Dissolved in 40% PEG 400 in saline; 3 mg/kg; i.p. injection
Male Sprague Dawley rats
References

[1]. Neuroprotective effects of NU1025, a PARP inhibitor in cerebral ischemia are mediated through reduction in NAD depletion and DNA fragmentation. Life Sci. 2006 Nov 10;79(24):2293-302.

[2]. Potentiation of anti-cancer agent cytotoxicity by the potent poly(ADP-ribose) polymerase inhibitors NU1025 and NU1064. Br J Cancer. 1998 Nov;78(10):1269-77.

[3]. Potentiation of temozolomide and topotecan growth inhibition and cytotoxicity by novel poly(adenosine diphosphoribose) polymerase inhibitors in a panel of human tumor cell lines. Clin Cancer Res. 2000 Jul;6(7):2860-7.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C9H8N2O2
Molecular Weight
176.17
Exact Mass
176.06
CAS #
90417-38-2
Related CAS #
90417-38-2
Appearance
White solid powder
SMILES
CC1=NC2=C(C=CC=C2O)C(=O)N1
InChi Key
YJDAOHJWLUNFLX-UHFFFAOYSA-N
InChi Code
InChI=1S/C9H8N2O2/c1-5-10-8-6(9(13)11-5)3-2-4-7(8)12/h2-4,12H,1H3,(H,10,11,13)
Chemical Name
8-hydroxy-2-methyl-3H-quinazolin-4-one
Synonyms
NU 1025; NU1025; NU-1025
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 35~100 mg/mL (198.7~567.6 mM)
Water: <1 mg/mL
Ethanol: ~6 mg/mL warmed (~34.1 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (11.81 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.08 mg/mL (11.81 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: 40% PEG 400+saline: 18mg/mL


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 5.6763 mL 28.3817 mL 56.7634 mL
5 mM 1.1353 mL 5.6763 mL 11.3527 mL
10 mM 0.5676 mL 2.8382 mL 5.6763 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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