parp cleavage

Rubiadin (1,3-Dihydroxy-2-Methylanthracene-9,10-Dione) possesses potent antioxidant property, it can prevent lipid peroxidation induced by FeSO4 and t-butylhydroperoxide (t-BHP) in a dose dependent manner.

Erucin （1-isothiocyanato-4-methylsulfanylbutane） is a dietary isothiocyanate produced by enzymatic hydrolysis of glucoErucin with potential cancer preventive effects, involved in apoptosis and cell cycle blockade through PARP-1 cleavage, p53 and p21，Cyp450, quinone reductase (QR), glutatione transferase (GST) and other pathways.

L-Chicoric Acid (trans-Caffeoyltartaric acid) has been shown to inhibit hyaluronidase and HIV-1 integrase, and to possess phagoeytosis stimulatory activity in vitro and in vivo and antiviral acitivy. L-Chicoric acid may reduce acute alcohol-induced steatosis in mice through interfering with the induction of iNOS and iNOS-dependent signaling cascades in the liver. 3. L-Chicoric acid inhibited cell viability and induced apoptosis in 3T3-L1 preadipocytes which was characterized by chromatin condensation and poly ADP-ribose-polymerase (PARP) cleavage.

Myristicin (Myristicine) is a natural product found in spices and umbelliferous plants. Myristicin has anti-cholinergic, Antibacterial, and hepatoprotective effects, it also has anti-inflammatory properties related with its inhibition of NO, cytokines,chemokines, and growth factors in dsRNA-stimulated macrophages via the calcium pathway. Myristicin can induce Apoptosis as characterised by alterations in the mitochondrial membrane potential, cytochrome c release, Caspase-3 activation, PARP-cleavage and DNA fragmentation.

Diazaquinomycin A (DAQA) is a diazaquinomycin antibiotic that acts as an inhibitor of thymidylate synthase. DAQA induces DNA damage, cell cycle arrest, and apoptosis through cleavage of PARP.

Hellebrigenin, as a selective inhibitor of MAPK signaling pathways (ERK, p38, JNK) and XIAP, effectively suppresses Akt expression and phosphorylation. This compound activates endogenous apoptosis pathways (including mitochondrial membrane potential disruption, Caspase family activation, and PARP cleavage) while modulating apoptosis-related protein expression. Hellebrigenin also induces DNA double-strand breaks to activate the ATM pathway, inhibiting tumor cell proliferation and clonogenesis, primarily applied in research of oral squamous cell carcinoma and liver cancer.

Lucidenic acid B (Lucidenicacid B), a natural compound extracted from Ganoderma lucidum, induces activation of caspase-9 and caspase-3 and cleavage of PARP, which can induce apoptosis in human leukemia cells through mitochondrial mediation. Lucidenic acid B inhibits PMA-induced invasion of human hepatocellular carcinoma cells by inactivating the MAPK ERK signaling pathway and decreasing the binding activity of NF-kappaB and AP-1. Lucidenic acid B had no effect on cell cycle and necrotic cells.

ExcisaninA may be a potent inhibitor of AKT signaling pathway in tumor cells, it can inhibit invasion by suppressing MMP-2 and MMP-9 expression, it may be a potential anti-metastatic chemotherapeutic agent for the treatment of breast cancer. Excisanin A shows comparable inhibitory effects on the LPS-induced production of NO and PGE2, and activation of NF-kappaB without affecting cell viability.Excisanin A induces apoptosis in colon cancer cell line SW620 as determined by Annexin V staining, the cleavage of caspase-3 and the proteolytic degradation of poly (ADP-ribose) polymerase (PARP).