PARP2 Inhibitor

Olaparib (AZD2281; KU0059436) is a potent and orally active PARP inhibitor with IC₅₀s of 5 and 1 nM for PARP1 and PARP2, respectively. Olaparib is an autophagy and mitophagy activator. Olaparib cannot cross the intact blood-brain barrier (BBB).

XAV-939 is a Tankyrase inhibitor. XAV-939 has inhibitory activity for TNKS1 and TNKS2 with IC₅₀ values of 5 nM and 2 nM, respectively. XAV-939 also is an enhancer of osteoblastic differentiation of hMSCs. XAV-939 can be used for the research of conditions associated with activated Wnt signaling, such as cancer, fibrotic diseases and conditions associated with low bone formation.

Talazoparib (BMN-673) is a highly potent, orally active PARP1/2 inhibitor.Talazoparib inhibits PARP1 and PARP2 enzyme activity with K_is of 1.2 nM and 0.87 nM, respectively. Talazoparib has antitumor activity.

Niraparib (MK-4827) is a highly potent and orally bioavailable PARP1 and PARP2 inhibitor with IC₅₀s of 3.8 and 2.1 nM, respectively. Niraparib leads to inhibition of repair of DNA damage, activates apoptosis and shows anti-tumor activity.

Saruparib (AZD5305) is a potent, orally active and selective PARP inhibitor and trapper with IC₅₀ values of 3 nM and 1400 nM for PARP1 and PARP2, respectively. Saruparib has anti-proliferative activity and inhibits growth in cells with deficiencies in DNA repair.

PCIP-1 is a PARP2 inhibitor. PCIP-1 recruits BET proteins to PARP2 to inhibit DNA repair, acts via event-driven pharmacology, and does not inhibit PARP-catalyzed PARylation. PCIP-1 inhibits DNA repair, thereby inducing synthetic lethality in homologous recombination-deficient cancer cells and increasing the sensitivity of PARP1-knockout cells. PCIP-1 can be used in the research of homologous recombination-deficient cancers, T-cell acute lymphoblastic leukemia, and BRCA-mutant cancers.

Rucaparib (AG014699) is an orally active, potent inhibitor of PARP proteins (PARP-1, PARP-2 and PARP-3) with a K_i of 1.4 nM for PARP1. Rucaparib is a modest hexose-6-phosphate dehydrogenase (H6PD) inhibitor. Rucaparib has the potential for castration-resistant prostate cancer (CRPC) research.

Veliparib (ABT-888) is a potent PARP inhibitor, inhibiting PARP1 and PARP2 with K_is of 5.2 and 2.9 nM, respectively.

PJ34 is a potent specific inhibitor of PARPl/2 with IC₅₀ of 110 nM and 86 nM, respectively.

Niraparib hydrochloride (MK-4827 hydrochloride) is a highly potent and orally bioavailable PARP1 and PARP2 inhibitor with IC₅₀s of 3.8 and 2.1 nM, respectively. Niraparib hydrochloride leads to inhibition of repair of DNA damage, activates apoptosis and shows anti-tumor activity.

Rucaparib (AG014699) phosphate is an orally active, potent inhibitor of PARP proteins (PARP-1, PARP-2 and PARP-3) with a K_i of 1.4 nM for PARP1. Rucaparib phosphate is a modest hexose-6-phosphate dehydrogenase (H6PD) inhibitor. Rucaparib phosphate has the potential for castration-resistant prostate cancer (CRPC) research.

NVP-TNKS656 is a highly potent, selective, and orally active TNKS2 inhibitor with IC₅₀ of 6 nM, and is > 300 fold selectivity against PARP1 and PARP2.

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.

Stenoparib (E7449) is a potent PARP1 and PARP2 inhibitor and also inhibits TNKS1 and TNKS2, with IC₅₀s of 2.0, 1.0, ～50 and ～50 nM for PARP1, PARP2, TNKS1 and TNKS2, respectively, using ³²P-NAD⁺ as substrate.

OUL232 is a potent inhibitor of mono-ARTs PARP7, PARP10, PARP11, PARP12, PARP14, and PARP15. OUL232 is the most potent PARP10 inhibitor described to date (IC₅₀=7.8 nM), as well as the first PARP12 inhibitor ever reported.

UPF 1069 is a PARP inhibitor, with IC₅₀s of 8 and 0.3 μM for PARP-1 and PARP-2, respectively.

Rucaparib (AG014699) monocamsylate is an orally active, potent inhibitor of PARP proteins (PARP-1, PARP-2 and PARP-3) with a K_i of 1.4 nM for PARP1. Rucaparib monocamsylate is a modest hexose-6-phosphate dehydrogenase (H6PD) inhibitor. Rucaparib monocamsylate has the potential for castration-resistant prostate cancer (CRPC) research.

RBN-3143 is a potent and NAD+-competitive catalytic PARP14 inhibitor with an IC₅₀ value of 4 nM. RBN-3143 inhibits PARP14-mediated ADP-ribosylation and stabilizes PARP14 in cell lines. RBN-3143 can be used in research of lung inflammation.

PJ34 hydrochloride is an inhibitor of PARP1/2 with IC₅₀ of 110 nM and 86 nM, respectively.

Venadaparib (IDX-1197) is a potent, selective and orally active PARP inhibitor with IC₅₀s of 1.4 nM and 1.0 nM for PARP1 and PARP2, respectively. Venadaparib does not sensitive to PARP-5. Venadaparib prevents the repair of DNA single-strand breaks (SSB) and can be used for solid tumors research.