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Formula | C13H16N4O |
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Molecular Weight | 244.29 | CAS No. | 912444-00-9 | |
Solubility (25°C)* | In vitro | DMSO | 49 mg/mL (200.58 mM) | |
Water | Insoluble | |||
Ethanol | Insoluble | |||
* <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. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.) |
Description | Veliparib (ABT-888, NSC 737664) is a potent inhibitor of PARP1 and PARP2 with Ki of 5.2 nM and 2.9 nM in cell-free assays, respectively. It is inactive to SIRT2. Veliparib increases autophagy and apoptosis. Phase 3. | ||||
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In vitro | ABT-888 is inactive to SIRT2 (>5 μM). [1] ABT-888 inhibits the PARP activity with EC50 of 2 nM in C41 cells. [2] ABT-888 could decrease the PAR levels in both irradiated and nonirradiated H460 cells. ABT-888 also reduces clonogenic survival and inhibits DNA repair by PARP-1 inhibition in H460 cells. ABT-888 increases apoptosis and autophagy in H460 cells when combination with radiation. [3] ABT-888 also inhibits PARP activity in H1299, DU145 and 22RV1 cells and the inhibition is independent of p53 function. ABT-888 (10 μM) suppresses the surviving fraction (SF) by 43% in the clonogenic H1299 cells. ABT-888 shows effective radiosensitivity in oxic H1299 cells. Furthermore, ABT-888 could attenuate the SF of hypoxic-irradiated cells including H1299, DU145 and 22RV1. [4] |
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In vivo | The oral bioavailability of ABT-888 is 56%-92% in mice, Sprague-Dawley rats, beagle dogs, and cynomolgus monkeys after oral administration. [1] ABT-888 (25 mg/kg i.p.) could improve tumor growth delay in a NCI-H460 xenograft model with well tolerated. Combination with radiation, ABT-888 decreases the tumor vessel formation. [3] ABT-888 reduces intratumor PAR levels by more than 95% at a dose of 3 and 12.5 mg/kg in A375 and Colo829 xenograft models and the suppression could be maintained over time. [4] |
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Features | Increases the efficacy of common cancer therapies such as radiation and alkylating agents. |
Kinase Assay: |
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Animal Study: |
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Data from [Nucl Med Commun, 2011, 32, 1046-1051]
Data from [Nucl Med Commun, 2011, 32(11), 1046-51]
Data from [Nucl Med Commun, 2011, 32(11), 1046-51]
, , Dr.Zhang of Tianjin Medical University
Transcription-replication conflicts underlie sensitivity to PARP inhibitors [ Nature, 2024, 10.1038/s41586-024-07217-2] | PubMed: 38509368 |
Aggregability of the SQSTM1/p62-based aggresome-like induced structures determines the sensitivity to parthanatos [ Cell Death Discov, 2024, 10(1):74] | PubMed: 38346947 |
Thioparib inhibits homologous recombination repair, activates the type I IFN response, and overcomes olaparib resistance [ EMBO Mol Med, 2023, e16235.] | PubMed: 36652375 |
A multi-scale map of protein assemblies in the DNA damage response [ Cell Syst, 2023, S2405-4712(23)00116-3] | PubMed: 37220749 |
NINJ1 is activated by cell swelling to regulate plasma membrane permeabilization during regulated necrosis [ Cell Death Dis, 2023, 10.1038/s41419-023-06284-z] | PubMed: 37980412 |
Targeting CD47-SIRPa axis shows potent preclinical anti-tumor activity as monotherapy and synergizes with PARP inhibition [ NPJ Precis Oncol, 2023, 7(1):69] | PubMed: 37468567 |
DTX3L E3 ligase targets p53 for degradation at poly ADP-ribose polymerase-associated DNA damage sites [ iScience, 2023, 26(4):106444] | PubMed: 37096048 |
Dynamics of endogenous PARP1 and PARP2 during DNA damage revealed by live-cell single-molecule imaging [ iScience, 2023, 26(1):105779] | PubMed: 36594010 |
Venadaparib Is a Novel and Selective PARP Inhibitor with Improved Physicochemical Properties, Efficacy, and Safety [ Mol Cancer Ther, 2023, 22(3):333-342] | PubMed: 36808277 |
The ATR Inhibitor VE-821 Enhances the Radiosensitivity and Suppresses DNA Repair Mechanisms of Human Chondrosarcoma Cells [ Int J Mol Sci, 2023, 24(3)2315] | PubMed: 36768638 |
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