MSC2504877 (MSC-2504877) a novel small molecule selective tankyrase inhibitor with IC50 of 0.7/0.8 nM against TNKS1/2, shows 771-fold selectivity for TNKS1 over PARP1 (IC50=0.54 uM); increased AXIN2 protein levels and decreased β-catenin levels in APC mutant COLO320DM colorectal tumour cells, suppressed canonical Wnt signalling in SW480 cell line, inhibits the growth of APC mutant colorectal tumour cells; enhances G1 cell cycle arrest and cellular senescence in tumour cells when combined with CDK4/6 inhibitor Palbociclib, suppresses the upregulation of Cyclin D2 and Cyclin E2 caused by palbociclib and enhances the suppression of pRb; Palbociclib plus MSC2504877 combination suppresses hyperproliferation in Apc defective cells in vivo.
Veliparib (dihydrochloride) is a potent inhibitor of PARP1 and PARP2 with Kis of 5.2 nM and 2.9 nM in cell-free assays, respectively.
PROTAC PARP/EGFR ligand 1 is an active compound that can be used for the synthesis of dual PARP EGFR degraders by proteolytic targeting chimera (PROTAC) technology[1].
PARP11 inhibitor ITK7 (ITK7) is a potent and selective PARP11 inhibitor. PARP11 inhibitor ITK7 can potently inhibit PARP11 with an IC50 value of 14 nM. PARP11 inhibitor ITK7 can be used for the research of cellular localization[1].
Nudifloramide-d3 (2PY-d3) is the deuterium labeled Nudifloramide. Nudifloramide (2PY) is one of the end products of nicotinamide-adenine dinucleotide (NAD) degradation. Nudifloramide significantly inhibits poly(ADP-ribose) polymerase (PARP-1) activity in vitro[1].
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.
Niraparib tosylate (MK-4827 tosylate) is an excellent PARP1 and PARP2 inhibitor with an IC50 of 3.8 and 2.1 nM, respectively.
PARP1-IN-10 (compound 12c) is a no-cytotoxicity and potent PARP1 inhibitor with an IC50 value of 50.62 nM in vitro. PARP1-IN-10 causes cell cycle arrest at G2/M phase and apoptosis, and enhances the cytotoxicity of temozolomide (TMZ) [1].
PARP14 inhibitor H10, compound H 10, is a selective inhibitor against PARP14 (IC50=490 nM), over other PARPs (≈24 fold over PARP1). PARP14 inhibitor H10 induces caspase-3/7-mediated cell apoptosis[1].
PARP7-IN-15 (Compound 18) is a PARP7 inhibitor with IC50 of 0.56 nM, that has antitumor activity[1].
PARP1-IN-8 (compound 11c) is a potent and BBB-penetrated PARP1 inhibitor, with an IC50 of 97 nM. PARP1-IN-8 shows significantly potent anti-proliferative activity against Human lung adenocarcinoma epithelial cell line A549[1].
ARTD10/PARP10-IN-2 (compound 19) is a potent and non-selective PARP inhibitor, targeting to mono-ADP-ribosyltransferases ARTD10/PARP10 and poly(ADP-ribose) polymerase-1 ARTD1/PARP1 with IC50s of 2.0 μM, and 9.7 μM, respectively[1].
EB-47 dihydrochloride, a potent and selective PARP-1/ARTD-1 inhibitor with an IC50 value of 45 nM, shows modest potency against ARTD5 with an IC50 value of 410 nM. EB-47 mimics the substrate NAD+ and extends from the nicotinamide to the adenosine subsite[1].
Rucaparib (AG014699) hydrochloride is an orally active, potent inhibitor of PARP proteins (PARP-1, PARP-2 and PARP-3) with a Ki of 1.4 nM for PARP1. Rucaparib hydrochloride is a modest hexose-6-phosphate dehydrogenase (H6PD) inhibitor. Rucaparib hydrochloride has the potential for castration-resistant prostate cancer (CRPC) research[1][2][3][4].
5,7-Dihydroxychromone, the extract of Cudrania tricuspidata, activates Nrf2/ARE signal and exerts neuroprotective effects against 6-hydroxydopamine (6-OHDA)-induced oxidative stress and apoptosis. 5,7-Dihydroxychromone inhibits the expression of activated caspase-3 and caspase-9 and cleaved PARP in 6-OHDA-induced SH-SY5Y cells[1].
TNKS1/2-IN-2 (Compound 21) is a potent and selective tankyrases inhibitor. TNKS1/2-IN-2 exhibits IC50 values of 4 nM and 63 nM against TNK1 and TNK2 in the enzymatic assay, respectively. TNKS1/2-IN-2 inhibits proliferation of A549 and H292 cell lines with IC50 values of 39.5 nM and 12.8 nM, respectively. TNKS1/2-IN-2 can be used for the research of cancer[1].
VPC-70063 is a potent Myc-Max inhibitor with an IC50 value of 8.9 μM for Myc-Max transcriptional activity inhibition. VPC-70063 reduces UBE2C promotor activity and AR-V7 levels, and induces PARP cleavage. VPC-70063 induces apoptosis and blocks Myc-Max interactions with DNA. VPC-70063 can be used for researching anticancer[1].
3-Methoxybenzamide (3-MBA), an inhibitor of ADP-ribosyltransferase (ADPRTs) and PARP, inhibits cell division in Bacillus subtilis, leading to filamentation and eventually lysis of cells[1]. 3-Methoxybenzamide (3-MBA) enhances in vitro plant growth, microtuberization, and transformation efficiency of blue potato (Solanum tuberosum L. subsp. andigenum)[2].
CEP-9722, the prodrug of CEP-8983, is a selective and orally active PARP-1 and PARP-2 inhibitor with IC50s of 20 nM and 6 nM, respectively. CEP-9722 has anticancer effects[1][2].
Oxychloroaphine could be isolated from the bacterium Pantoea agglomerans naturally present in soil. Oxychloroaphine has broad-spectrum antifungal activity. Oxychloroaphine has cytotoxicity in a dose-dependent manner and induces apoptosis. Oxychloroaphine can be used in research of cancer[1][2].
Oroxin A is the major component of an ethanol-water Oroxylum indicum (L.) Kurz (Bignoniaceae) seed extract (OISE), activates peroxisome proliferator-activated receptor γ (PPARγ) by docking into the PPARγ protein ligand-binding domain. Oroxin A exhibits an inhibitory activity against α-glucosidase and an antioxidant capacity[1]. Oroxin A exerts anti-breast cancer effects by inducing ER stress-mediated senescence[2].
RBN012759 is a potent, selective and orally active inhibitor of PARP14, with an IC50 of <3 nM. RBN012759 displays 300-fold selectivity over the monoPARPs and 1000-fold selectivity over the polyPARPs. RBN012759 decreases pro-tumor macrophage function and elicits inflammatory responses in tumor explants[1].
SK-575 is a highly potent and specific proteolysis-targeting chimera (PROTAC) degrader of PARP1. SK-575 potently inhibits the growth of cancer cells bearing BRCA1/2 mutations. SK-575 inhibits cell growth in MDA-MB-436 and Capan-1 cells, with IC50 values of 19 ± 6 nM and 56 ± 12 nM, respectively[1].
RBN-2397 is a potent, accross species and orally active NAD+ competitive inhibitor of PARP7 (IC50<3 nM). RBN-2397 selectively binds to PARP7 (Kd=0.001 μM) and restores interferon (Type I) signaling. RBN-2397 has the potential for the study of advanced or metastatic solid tumors[1][2].
PARP-1/2-IN-1 is a potent PARP-1/2 inhibitor with IC50 of 0.51 nM and 23.11 nM, respectively.
4'-Methoxychalcone regulates adipocyte differentiation through PPARγ activation. 4'-Methoxychalcone modulates the expression and secretion of various adipokines in adipose tissue that are involved in insulin sensitivity[1].
1,5-Isoquinolinediol is a potent PARP inhibitor, with an IC50 of 0.18-0.37 µM. 1,5-Isoquinolinediol attenuates diabetes-induced NADPH oxidase-derived oxidative stress in retina[1][2].
Niraparib (MK-4827) tosylate hydrate is a highly potent and orally bioavailable PARP1 and PARP2 inhibitor with IC50s of 3.8 and 2.1 nM, respectively. Niraparib tosylate hydrate leads to inhibition of repair of DNA damage, activates apoptosis and shows anti-tumor activity[1][2][3].
TNKS-2-IN-1 (Compound 13g) is a TNKS-2 inhibitor. TNKS-2-IN-1 inhibits TNKS-1 and TNKS-2 with IC50s of 259 nM and 1100 nM[1].
Tankyrase-IN-2 (compound 5k) is a potent, selective, and orally active tankyrase inhibitor (IC50s of 10, 7, and 710 nM for TNKS1, TNKS2 as well as PARP1, respectively). Tankyrase-IN-2 has favorable physicochemical profile and pharmacokinetic properties modulating Wnt pathway activity in a colorectal xenograft model[1].