Now showing items 1-20 of 50

    • 2,8-Disubstituted-1,6-Naphthyridines and 4,6-Disubstituted-Isoquinolines with Potent, Selective Affinity for CDK8/19. 

      Mallinger, A; Schiemann, K; Rink, C; Sejberg, J; Honey, MA; Czodrowski, P; Stubbs, M; Poeschke, O; Busch, M; Schneider, R; Schwarz, D; Musil, D; Burke, R; Urbahns, K; Workman, P; Wienke, D; Clarke, PA; Raynaud, FI; Eccles, SA; Esdar, C; Rohdich, F; Blagg, J (2016-06)
      We demonstrate a designed scaffold-hop approach to the discovery of 2,8-disubstituted-1,6-naphthyridine- and 4,6-disubstituted-isoquinoline-based dual CDK8/19 ligands. Optimized compounds in both series exhibited rapid ...
    • Assessing histone demethylase inhibitors in cells: lessons learned. 

      Hatch, SB; Yapp, C; Montenegro, RC; Savitsky, P; Gamble, V; Tumber, A; Ruda, GF; Bavetsias, V; Fedorov, O; Atrash, B; Raynaud, F; Lanigan, R; Carmichael, L; Tomlin, K; Burke, R; Westaway, SM; Brown, JA; Prinjha, RK; Martinez, ED; Oppermann, U; Schofield, CJ; Bountra, C; Kawamura, A; Blagg, J; Brennan, PE; Rossanese, O; Müller, S (2017)
      BACKGROUND: Histone lysine demethylases (KDMs) are of interest as drug targets due to their regulatory roles in chromatin organization and their tight associations with diseases including cancer and mental disorders. The ...
    • AXIN Shapes Tankyrase ARChitecture. 

      Guettler, S (2016-10)
      The poly(ADP-ribose)polymerase (PARP) Tankyrase uses ankyrin repeat modules to capture substrates via Tankyrase-binding peptide motifs. In this issue of Structure, Eisemann et al. (2016) describe how the signaling protein ...
    • Calmodulin-independent, agonistic properties of a peptide containing the calmodulin binding site of estrogen receptor alpha 

      Rowlands, Martin (2007-03-30)
      Calmodulin (CaM) contributes to estrogen receptor alpha (ER)-mediated transcription. In order to study the underlying mechanisms, we synthesized a peptide including the CaM binding site: ERalpha17p (P(295)-T(311)). This ...
    • Characterisation of CCT271850, a selective, oral and potent MPS1 inhibitor, used to directly measure in vivo MPS1 inhibition vs therapeutic efficacy. 

      Faisal, A; Mak, GWY; Gurden, MD; Xavier, CPR; Anderhub, SJ; Innocenti, P; Westwood, IM; Naud, S; Hayes, A; Box, G; Valenti, MR; De Haven Brandon, AK; O'Fee, L; Schmitt, J; Woodward, HL; Burke, R; vanMontfort, RLM; Blagg, J; Raynaud, FI; Eccles, SA; Hoelder, S; Linardopoulos, S (2017-04-25)
      BACKGROUND: The main role of the cell cycle is to enable error-free DNA replication, chromosome segregation and cytokinesis. One of the best characterised checkpoint pathways is the spindle assembly checkpoint, which ...
    • Characterization of Hedgehog Acyltransferase Inhibitors Identifies a Small Molecule Probe for Hedgehog Signaling by Cancer Cells. 

      Rodgers, UR; Lanyon-Hogg, T; Masumoto, N; Ritzefeld, M; Burke, R; Blagg, J; Magee, AI; Tate, EW (2016-12-16)
      The Sonic Hedgehog (Shh) signaling pathway plays a critical role during embryonic development and cancer progression. N-terminal palmitoylation of Shh by Hedgehog acyltransferase (Hhat) is essential for efficient signaling, ...
    • A closed conformation of the Caenorhabditis elegans separase-securin complex. 

      Bachmann, G; Richards, MW; Winter, A; Beuron, F; Morris, E; Bayliss, R (2016-04-13)
      The protease separase plays a key role in sister chromatid disjunction and centriole disengagement. To maintain genomic stability, separase activity is strictly regulated by binding of an inhibitory protein, securin. Despite ...
    • Demonstrating In-Cell Target Engagement Using a Pirin Protein Degradation Probe (CCT367766). 

      Chessum, NEA; Sharp, SY; Caldwell, JJ; Pasqua, AE; Wilding, B; Colombano, G; Collins, I; Ozer, B; Richards, M; Rowlands, M; Stubbs, M; Burke, R; McAndrew, PC; Clarke, PA; Workman, P; Cheeseman, MD; Jones, K (2018-02-08)
      Demonstrating intracellular protein target engagement is an essential step in the development and progression of new chemical probes and potential small molecule therapeutics. However, this can be particularly challenging ...
    • Discovery of a Chemical Probe Bisamide (CCT251236): An Orally Bioavailable Efficacious Pirin Ligand from a Heat Shock Transcription Factor 1 (HSF1) Phenotypic Screen. 

      Cheeseman, MD; Chessum, NEA; Rye, CS; Pasqua, AE; Tucker, MJ; Wilding, B; Evans, LE; Lepri, S; Richards, M; Sharp, SY; Ali, S; Rowlands, M; O'Fee, L; Miah, A; Hayes, A; Henley, AT; Powers, M; Te Poele, R; De Billy, E; Pellegrino, L; Raynaud, F; Burke, R; van Montfort, RLM; Eccles, SA; Workman, P; Jones, K (2017-01-12)
      Phenotypic screens, which focus on measuring and quantifying discrete cellular changes rather than affinity for individual recombinant proteins, have recently attracted renewed interest as an efficient strategy for drug ...
    • The discovery of potent ribosomal S6 kinase inhibitors by high-throughput screening and structure-guided drug design. 

      Couty, S; Westwood, IM; Kalusa, A; Cano, C; Travers, J; Boxall, K; Chow, CL; Burns, S; Schmitt, J; Pickard, L; Barillari, C; McAndrew, PC; Clarke, PA; Linardopoulos, S; Griffin, RJ; Aherne, GW; Raynaud, FI; Workman, P; Jones, K; van Montfort, RL (2013-10)
      The ribosomal P70 S6 kinases play a crucial role in PI3K/mTOR regulated signalling pathways and are therefore potential targets for the treatment of a variety of diseases including diabetes and cancer. In this study we ...
    • Evaluation of APOBEC3B Recognition Motifs by NMR Reveals Preferred Substrates. 

      Liu, M; Mallinger, A; Tortorici, M; Newbatt, Y; Richards, M; Mirza, A; van Montfort, RLM; Burke, R; Blagg, J; Kaserer, T (2018-09-21)
      APOBEC3B (A3B) deamination activity on ssDNA is considered a contributing factor to tumor heterogeneity and drug resistance in a number of human cancers. Despite its clinical impact, little is known about A3B ssDNA substrate ...
    • Exploiting Protein Conformational Change to Optimize Adenosine-Derived Inhibitors of HSP70. 

      Cheeseman, MD; Westwood, IM; Barbeau, O; Rowlands, M; Dobson, S; Jones, AM; Jeganathan, F; Burke, R; Kadi, N; Workman, P; Collins, I; van Montfort, RL; Jones, K (2016-05)
      HSP70 is a molecular chaperone and a key component of the heat-shock response. Because of its proposed importance in oncology, this protein has become a popular target for drug discovery, efforts which have as yet brought ...
    • A fragment-based approach applied to a highly flexible target: Insights and challenges towards the inhibition of HSP70 isoforms. 

      Jones, AM; Westwood, IM; Osborne, JD; Matthews, TP; Cheeseman, MD; Rowlands, MG; Jeganathan, F; Burke, R; Lee, D; Kadi, N; Liu, M; Richards, M; McAndrew, C; Yahya, N; Dobson, SE; Jones, K; Workman, P; Collins, I; van Montfort, RL (2016-10-06)
      The heat shock protein 70s (HSP70s) are molecular chaperones implicated in many cancers and of significant interest as targets for novel cancer therapies. Several HSP70 inhibitors have been reported, but because the majority ...
    • 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; Aleksandrov, R; Harrell, MI; Menon, M; Brough, R; Campbell, J; Frankum, J; Ranes, M; Pemberton, HN; Rafiq, R; Fenwick, K; Swain, A; Guettler, S; Lee, J-M; Swisher, EM; Stoynov, S; Yusa, K; Ashworth, A; Lord, CJ (2018-05-10)
      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 ...
    • High-resolution cryo-EM proteasome structures in drug development. 

      Morris, EP; da Fonseca, PCA (2017-06-01)
      With the recent advances in biological structural electron microscopy (EM), protein structures can now be obtained by cryo-EM and single-particle analysis at resolutions that used to be achievable only by crystallographic ...
    • Identifying and Validating Tankyrase Binders and Substrates: A Candidate Approach. 

      Pollock, K; Ranes, M; Collins, I; Guettler, S (2017)
      The poly(ADP-ribose)polymerase (PARP) enzyme tankyrase (TNKS/ARTD5, TNKS2/ARTD6) uses its ankyrin repeat clusters (ARCs) to recognize degenerate peptide motifs in a wide range of proteins, thereby recruiting such proteins ...
    • Inhibition of mTOR-kinase destabilizes MYCN and is a potential therapy for MYCN-dependent tumors. 

      Vaughan, L; Clarke, PA; Barker, K; Chanthery, Y; Gustafson, CW; Tucker, E; Renshaw, J; Raynaud, F; Li, X; Burke, R; Jamin, Y; Robinson, SP; Pearson, A; Maira, M; Weiss, WA; Workman, P; Chesler, L (2016-07-12)
      MYC oncoproteins deliver a potent oncogenic stimulus in several human cancers, making them major targets for drug development, but efforts to deliver clinically practical therapeutics have not yet been realized. In childhood ...
    • An Irreversible Inhibitor of HSP72 that Unexpectedly Targets Lysine-56. 

      Pettinger, J; Le Bihan, Y-V; Widya, M; van Montfort, RLM; Jones, K; Cheeseman, MD (2017-03-20)
      The stress-inducible molecular chaperone, HSP72, is an important therapeutic target in oncology, but inhibiting this protein with small molecules has proven particularly challenging. Validating HSP72 inhibitors in cells ...
    • Mechanism of selective recruitment of RNA polymerases II and III to snRNA gene promoters. 

      Dergai, O; Cousin, P; Gouge, J; Satia, K; Praz, V; Kuhlman, T; Lhôte, P; Vannini, A; Hernandez, N (2018-05-01)
      RNA polymerase II (Pol II) small nuclear RNA (snRNA) promoters and type 3 Pol III promoters have highly similar structures; both contain an interchangeable enhancer and "proximal sequence element" (PSE), which recruits the ...
    • MIR21 Drives Resistance to Heat Shock Protein 90 Inhibition in Cholangiocarcinoma. 

      Lampis, A; Carotenuto, P; Vlachogiannis, G; Cascione, L; Hedayat, S; Burke, R; Clarke, P; Bosma, E; Simbolo, M; Scarpa, A; Yu, S; Cole, R; Smyth, E; Mateos, JF; Begum, R; Hezelova, B; Eltahir, Z; Wotherspoon, A; Fotiadis, N; Bali, MA; Nepal, C; Khan, K; Stubbs, M; Hahne, JC; Gasparini, P; Guzzardo, V; Croce, CM; Eccles, S; Fassan, M; Cunningham, D; Andersen, JB; Workman, P; Valeri, N; Braconi, C (2018-03)
      BACKGROUND & AIMS: Cholangiocarcinomas (CCA) are resistant to chemotherapy, so new therapeutic agents are needed. We performed a screen to identify small-molecule compounds that are active against CCAs. Levels of microRNA ...