Results 41 to 50 of about 13,318 (225)
Pyridazine Based Compounds with PARP-1 Inhibitory Activity
Archives of Pharmaceutical Sciences Ain Shams University, 2023 Pyridazine-containing compounds have been identified as potent PARP1 inhibitors. The PARP is a family of enzymes essential for many cellular processes such as DNA repair, genomic stability, and apoptosis, also known as poly(ADP-ribose) synthetases and ...
Norhan A. Abdelrahman +3 more
doaj +1 more source
Nature Communications, 2022 Poly(ADP) ribose polymerase (PARP) activity promotes, but is not required for, chromosome break repair by polymerase theta-mediated end joining (TMEJ). PARP activity promotes TMEJ by stimulating resection, a process that controls pathway choice.
Megan E. Luedeman +5 more
doaj +1 more source
Mechanisms of PARP inhibitor resistance in cancer and insights into the DNA damage response
Genome Medicine, 2018 Editorial summary Inhibitors of poly(ADP-ribose) polymerase (PARPi) have entered the clinic for the treatment of patients with cancers that lack homology-directed DNA repair, but drug resistance remains a clinical hurdle.
Paola Francica, Sven Rottenberg
doaj +1 more source
, 2011 available in PMC 2012 November 09Poly(ADP-ribose) (pADPr) is a posttranslational modification that regulates protein function through two major mechanisms: covalent modification of acceptor proteins and noncovalent binding of proteins to pADPr.
Leung, Anthony +5 more
core +1 more source
HPF1 remodels the active site of PARP1 to enable the serine ADP-ribosylation of histones
Nature Communications, 2021 Once DNA breaks occur, poly(ADP-ribose) polymerase 1 (PARP1) ADP-ribosylates itself and other DNA repair factors to initiate the repair process. Here, the authors resolve the crystal structures of mouse and human HPF1, and human HPF1/PARP1 complex ...
Fa-Hui Sun +5 more
doaj +1 more source
Poly(ADP-ribosyl)ation of p53 In Vitro and In Vivo Modulates Binding to its DNA Consensus Sequence
Neoplasia: An International Journal for Oncology Research, 2001 The tumor-suppresser p53 undergoes extensive poly(ADP-ribosyl)ation early during apoptosis in human osteosarcoma cells, and degradation of poly(ADP-ribose) (PAR) attached to p53 coincides with poly(ADP-ribose)polymerase-1, (PARP-1) cleavage, and ...
Cynthia M. Simbulan-Rosenthal +7 more
doaj +1 more source
Communications Biology, 2023 The poly (ADP-ribose) polymerase (PARP1) interacts with the telomere factor TRF1 and loss of PARP1 results in telomere fragility and impairment of helicases -TRF1 complex assembly.
C. Maresca +12 more
doaj +1 more source
Kynurenine–PARP-1 Link Mediated by MicroRNA 210 May Be Dysregulated in Pulmonary Hypertension
Anatolian Journal of Cardiology, 2022 Background: Dysregulation of microRNAs is associated with pulmonary hypertension. The present study aimed to determine the alterations in microRNA and microRNA expressions and their role in signaling pathways and investigate the relationship with serum ...
Alperen Emre Akgun +4 more
doaj +1 more source
Bleomycin-induced modulations of PARP 1 activity, NAD+ and PARG content in rat lung nuclei
Regulatory Mechanisms in BiosystemsBleomycin-induced lung pathology in rodents is a well recognized animal model widely used for evaluation of new therapeutic approaches in treatment of lung inflammation and fibrotic diseases.
I. G. Artsruni +2 more
doaj +1 more source
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source