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Poly(ADP-ribose) polymerase (PARP) inhibitors are thought as breakthrough for cancer treatment in solid tumours such as breast cancer through their effects on PARP’s enzymatic activity. PARP enzymes are involved in the regulation of many cellular processes such as DNA repair, cell cycle progression and cell death. Our previous findings showed that...
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Aims:
Studies have linked severe hyperoxia, or prolonged exposure to very high oxygen levels, with worse clinical outcomes. This study investigated the role of epidermal growth factor receptor (EGFR) in hyperoxia-induced lung injury at very high oxygen levels (>95%).
Results:
Effects of severe hyperoxia (100% oxygen) were studied in mice with ge...
BRCA1/2-deficient ovarian carcinoma (OC) has been shown to be particularly sensitive to poly (ADP-ribose) polymerase inhibitors (PARPis). Furthermore, BRCA1/2 mutation status is currently used as a predictive biomarker for PARPi therapy. Despite providing a major clinical benefit to the majority of patients, a significant proportion of BRCA1/2-defi...
Poly-ADP-ribosylation (PARylation) is regarded as a protein-specific modification. However, some PARPs were recently shown to modify DNA termini in vitro. Here, we use ultrasensitive mass spectrometry (LC-MS/MS), anti-PAR antibodies, and anti-PAR reagents to show that mammalian DNA is physiologically PARylated and to different levels in primary tis...
Prostate cancer is globally the second most commonly diagnosed cancer type in men.Recent studies suggest that mutations in DNA repair genes are associated with aggressive forms ofprostate cancer and castration resistance. Prostate cancer with DNA repair defects may bevulnerable to therapeutic targeting by Poly(ADP‐ribose) polymerase (PARP) inhibito...
Poly (ADP-ribose) polymerase (PARP) inhibitors are a therapeutic milestone exerting a synthetic lethal effect in the treatment of cancer involving BRCA1/2 mutation. Theoretically, PARP inhibitors (PARPi) eliminate tumor cells by disrupting DNA damage repair through either PARylation or the homologous recombination (HR) pathway. However, resistance...
