Browsing Molecular Pathology by author "Krastev, Dragomir"

Now showing items 1-10 of 10

    • ATR Is a Therapeutic Target in Synovial Sarcoma. 

      Jones, SE; Fleuren, EDG; Frankum, J; Konde, A; Williamson, CT; et al. (AMER ASSOC CANCER RESEARCH, 2017-12-15)
      Synovial sarcoma (SS) is an aggressive soft-tissue malignancy characterized by expression of SS18-SSX fusions, where treatment options are limited. To identify therapeutically actionable genetic dependencies in SS, we ...

    • Coupling bimolecular PARylation biosensors with genetic screens to identify PARylation targets. 

      Krastev, DB; Pettitt, SJ; Campbell, J; Song, F; Tanos, BE; et al. (NATURE PUBLISHING GROUP, 2018-05-22)
      Poly (ADP-ribose)ylation is a dynamic protein modification that regulates multiple cellular processes. Here, we describe a system for identifying and characterizing PARylation events that exploits the ability of a PBZ ...

    • DNA repair deficiency sensitizes lung cancer cells to NAD+ biosynthesis blockade. 

      Touat, M; Sourisseau, T; Dorvault, N; Chabanon, RM; Garrido, M; et al. (AMER SOC CLINICAL INVESTIGATION INC, 2018-04-02)
      Synthetic lethality is an efficient mechanism-based approach to selectively target DNA repair defects. Excision repair cross-complementation group 1 (ERCC1) deficiency is frequently found in non-small-cell lung cancer ...

    • E-Cadherin/ROS1 Inhibitor Synthetic Lethality in Breast Cancer. 

      Bajrami, I; Marlow, R; van de Ven, M; Brough, R; Pemberton, HN; et al. (AMER ASSOC CANCER RESEARCH, 2018-04-01)
      The cell adhesion glycoprotein E-cadherin (CDH1) is commonly inactivated in breast tumors. Precision medicine approaches that exploit this characteristic are not available. Using perturbation screens in breast tumor cells ...

    • Genome-wide and high-density CRISPR-Cas9 screens identify point mutations in PARP1 causing PARP inhibitor resistance. 

      Pettitt, SJ; Krastev, DB; Brandsma, I; Dréan, A; Song, F; et al. (NATURE PUBLISHING GROUP, 2018-05-01)
      Although PARP inhibitors (PARPi) target homologous recombination defective tumours, drug resistance frequently emerges, often via poorly understood mechanisms. Here, using genome-wide and high-density CRISPR-Cas9 ...

    • Genome-wide barcoded transposon screen for cancer drug sensitivity in haploid mouse embryonic stem cells. 

      Pettitt, SJ; Krastev, DB; Pemberton, HN; Fontebasso, Y; Frankum, J; et al. (NATURE PUBLISHING GROUP, 2017-03-01)
      We describe a screen for cellular response to drugs that makes use of haploid embryonic stem cells. We generated ten libraries of mutants with piggyBac gene trap transposon integrations, totalling approximately 100,000 ...

    • PARP inhibition enhances tumor cell-intrinsic immunity in ERCC1-deficient non-small cell lung cancer. 

      Chabanon, RM; Muirhead, G; Krastev, DB; Adam, J; Morel, D; et al. (AMER SOC CLINICAL INVESTIGATION INC, 2019-03-01)
      The cyclic GMP-AMP synthase/stimulator of IFN genes (cGAS/STING) pathway detects cytosolic DNA to activate innate immune responses. Poly(ADP-ribose) polymerase inhibitors (PARPi) selectively target cancer cells with DNA ...

    • Sirtuin inhibition is synthetic lethal with BRCA1 or BRCA2 deficiency. 

      Bajrami, I; Walker, C; Krastev, DB; Weekes, D; Song, F; et al. (NATURE PORTFOLIO, 2021-11-08)
      PARP enzymes utilise NAD+ as a co-substrate for their enzymatic activity. Inhibition of PARP1 is synthetic lethal with defects in either BRCA1 or BRCA2. In order to assess whether other genes implicated in NAD+ metabolism ...

    • The shieldin complex mediates 53BP1-dependent DNA repair. 

      Noordermeer, SM; Adam, S; Setiaputra, D; Barazas, M; Pettitt, SJ; et al. (NATURE PUBLISHING GROUP, 2018-08-02)
      53BP1 is a chromatin-binding protein that regulates the repair of DNA double-strand breaks by suppressing the nucleolytic resection of DNA termini1,2. This function of 53BP1 requires interactions with PTIP3 and RIF14-9, ...

    • The ubiquitin-dependent ATPase p97 removes cytotoxic trapped PARP1 from chromatin. 

      Krastev, DB; Li, S; Sun, Y; Wicks, AJ; Hoslett, G; et al. (NATURE PORTFOLIO, 2022-01-01)
      Poly (ADP-ribose) polymerase (PARP) inhibitors elicit antitumour activity in homologous recombination-defective cancers by trapping PARP1 in a chromatin-bound state. How cells process trapped PARP1 remains unclear. Using ...