Update on Poly-ADP-ribose polymerase inhibition for ovarian cancer treatment [PDF]
Background: Despite standard treatment for epithelial ovarian cancer (EOC), that involves cytoreductive surgery followed by platinum-based chemotherapy, and initial high response rates to these, up to 80 % of patients experience relapses with a median ...
Caruso, Davide +4 more
core +2 more sources
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
PARP-1 regulates DNA repair factor availability. [PDF]
PARP-1 holds major functions on chromatin, DNA damage repair and transcriptional regulation, both of which are relevant in the context of cancer. Here, unbiased transcriptional profiling revealed the downstream transcriptional profile of PARP-1 enzymatic
Birbe, Ruth +31 more
core +2 more sources
Mechanisms of PARP inhibitor resistance in cancer and insights into the DNA damage response
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
Poly(ADP-ribosyl)ation of p53 In Vitro and In Vivo Modulates Binding to its DNA Consensus Sequence
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
HPF1 remodels the active site of PARP1 to enable the serine ADP-ribosylation of histones
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
Inhibition of Poly(ADP-Ribose) polymerase enhances the toxicity of 131I-Metaiodobenzylguanidine/Topotecan combination therapy to cells and xenografts that express the noradrenaline transporter [PDF]
Targeted radiotherapy using [131I]meta-iodobenzylguanidine ([131I]MIBG) has produced remissions in some neuroblastoma patients. We previously reported that combining [131I]MIBG with the topoisomerase I (Topo-I) inhibitor topotecan induced long-term DNA ...
Babich, John W +7 more
core +1 more source
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
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
Bleomycin-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

