100 results found
Ali S, Patel H, Periyasamy M, et al., 2018, ICEC0942, an orally bioavailable selective inhibitor of CDK7 for cancer treatment, Molecular Cancer Therapeutics, ISSN: 1535-7163
Recent reports indicate that some cancer types are especially sensitive to transcription inhibition, suggesting that targeting the transcriptional machinery provides new approaches to cancer treatment. Cyclin-dependent kinase (CDK)7 is necessary for transcription, and acts by phosphorylating the C-terminal domain (CTD) of RNA polymerase II (PolII) to enable transcription initiation. CDK7 additionally regulates the activities of a number of transcription factors, including Estrogen receptor-α (ER). Here we describe a new, orally bioavailable CDK7 inhibitor, ICEC0942. It selectively inhibits CDK7, with an IC50 of 40nM; IC50 values for CDK1, CDK2, CDK5 and CDK9 were 45-, 15-, 230- and 30-fold higher. In vitro studies show that a wide range of cancer types are sensitive to CDK7 inhibition with GI50 values ranging between 0.2-0.3 µM. In xenografts of both breast and colorectal cancers, the drug has substantial anti-tumor effects. Additionally, combination therapy with tamoxifen showed complete growth arrest of ER-positive tumor xenografts. Our findings reveal that CDK7 inhibition provides a new approach, especially for ER-positive breast cancer and identify ICEC0942 as a prototype drug with potential utility as a single agent or in combination with hormone therapies for breast cancer. ICEC0942 may also be effective in other cancers that display characteristics of transcription factor addiction, such as acute leukaemia, and small-cell lung cancer.
Fuchter MJ, 2018, Editorial, BIOORGANIC & MEDICINAL CHEMISTRY, Vol: 26, Pages: 2919-2920, ISSN: 0968-0896
Hazel P, Kroll SHB, Bondke A, et al., 2018, Inhibitor Selectivity for Cyclin-Dependent Kinase7: A Structural, Thermodynamic, and Modelling Study (vol 12, pg 372, 2017), CHEMMEDCHEM, Vol: 13, Pages: 207-207, ISSN: 1860-7179
Lubin AS, Rueda-Zubiaurre A, Matthews H, et al., 2018, Development of a Photo-Cross-Linkable Diaminoquinazoline Inhibitor for Target Identification in Plasmodium falciparum, ACS INFECTIOUS DISEASES, Vol: 4, Pages: 523-530, ISSN: 2373-8227
Montgomery KS, Davidson RWM, Cao B, et al., 2018, Effective macrophage delivery using RAFT copolymer derived nanoparticles, POLYMER CHEMISTRY, Vol: 9, Pages: 131-137, ISSN: 1759-9954
Patel H, Periyasamy M, Sava GP, et al., 2018, ICEC0942, an Orally Bioavailable Selective Inhibitor of CDK7 for Cancer Treatment, UK Breast Cancer Research Symposium, Publisher: AMER ASSOC CANCER RESEARCH, Pages: 1156-1166, ISSN: 1535-7163
Rice B, LeBlanc LM, Otero-de-la-Roza A, et al., 2018, A computational exploration of the crystal energy and charge-carrier mobility landscapes of the chiral  helicene molecule, NANOSCALE, Vol: 10, Pages: 1865-1876, ISSN: 2040-3364
Rice B, LeBlanc LM, Otero-de-la-Roza A, et al., 2018, Correction: A computational exploration of the crystal energy and charge-carrier mobility landscapes of the chiral helicene molecule., Nanoscale, Vol: 10
Correction for 'A computational exploration of the crystal energy and charge-carrier mobility landscapes of the chiral helicene molecule' by Beth Rice et al., Nanoscale, 2018, 10, 1865-1876.
Sapsford JS, Scott DJ, Allcock NJ, et al., 2018, Direct Reductive Amination of Carbonyl Compounds Catalyzed by a Moisture Tolerant Tin(IV) Lewis Acid, ADVANCED SYNTHESIS & CATALYSIS, Vol: 360, Pages: 1066-1071, ISSN: 1615-4150
Yang Y, Rice B, Shi X, et al., 2018, Correction to Emergent Properties of an Organic Semiconductor Driven by its Molecular Chirality., ACS Nano
Brandt JR, Pospisil L, Bednarova L, et al., 2017, Intense redox-driven chiroptical switching with a 580 mV hysteresis actuated through reversible dimerization of an azoniahelicene, CHEMICAL COMMUNICATIONS, Vol: 53, Pages: 9059-9062, ISSN: 1359-7345
Brandt JR, Salerno F, Fuchter MJ, 2017, The added value of small-molecule chirality in technological applications, NATURE REVIEWS CHEMISTRY, Vol: 1, ISSN: 2397-3358
Calbo J, Weston CE, White AJP, et al., 2017, Tuning Azoheteroarene Photoswitch Performance through Heteroaryl Design, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 139, Pages: 1261-1274, ISSN: 0002-7863
Hazel P, Kroll SHB, Bondke A, et al., 2017, Inhibitor Selectivity for Cyclin-Dependent Kinase7: AStructural, Thermodynamic, and Modelling Study, CHEMMEDCHEM, Vol: 12, Pages: 372-380, ISSN: 1860-7179
Scott DJ, Fuchter MJ, Ashley AE, 2017, Designing effective 'frustrated Lewis pair' hydrogenation catalysts, CHEMICAL SOCIETY REVIEWS, Vol: 46, Pages: 5689-5700, ISSN: 0306-0012
Sundriyal S, Chen PB, Lubin AS, et al., 2017, Histone lysine methyltransferase structure activity relationships that allow for segregation of G9a inhibition and anti-Plasmodium activity, MEDCHEMCOMM, Vol: 8, Pages: 1069-1092, ISSN: 2040-2503
Sundriyal S, Moniot S, Mahmud Z, et al., 2017, Thienopyrimidinone based sirtuin-2 (SIRT2)-selective inhibitors bind in the ligand induced 'selectivity pocket'., Journal of Medicinal Chemistry, Vol: 60, Pages: 1928-1945, ISSN: 0022-2623
Sirtuins (SIRTs) are NAD-dependent deacylases, known to be involved in a variety of pathophysiological processes and thus remain promising therapeutic targets for further validation. Previously, we reported a novel thienopyrimidinone SIRT2 inhibitor with good potency and excellent selectivity for SIRT2. Herein, we report an extensive SAR study of this chemical series and identify the key pharmacophoric elements and physiochemical properties that underpin the excellent activity observed. New analogues have been identified with submicromolar SIRT2 inhibtory activity and good to excellent SIRT2 subtype-selectivity. Importantly, we report a co-crystal structure of one of our compounds (29c) bound to SIRT2. This reveals our series to induce the formation of a previously reported 'selectivity pocket', but to bind in an inverted fashion to what might be intuitively expected. We believe these findings will contribute significantly to understanding of the mechanism of action of SIRT2 inhibitors and to the identification of refined, second generation inhibitors.
Weston CE, Kraemer A, Colin F, et al., 2017, Toward Photopharmacological Antimicrobial Chemotherapy Using Photoswitchable Amidohydrolase Inhibitors, ACS INFECTIOUS DISEASES, Vol: 3, Pages: 152-161, ISSN: 2373-8227
Yang Y, Rice B, Shi X, et al., 2017, Emergent Properties of an Organic Semiconductor Driven by its Molecular Chirality, ACS Nano, Vol: 11, Pages: 8329-8338, ISSN: 1936-0851
Chiral molecules exist as pairs of nonsuperimposable mirror images; a fundamental symmetry property vastly underexplored in organic electronic devices. Here, we show that organic field-effect transistors (OFETs) made from the helically chiral molecule 1-azahelicene can display up to an 80-fold difference in hole mobility, together with differences in thin-film photophysics and morphology, solely depending on whether a single handedness or a 1:1 mixture of left- and right-handed molecules is employed under analogous fabrication conditions. As the molecular properties of either mirror image isomer are identical, these changes must be a result of the different bulk packing induced by chiral composition. Such underlying structures are investigated using crystal structure prediction, a computational methodology rarely applied to molecular materials, and linked to the difference in charge transport. These results illustrate that chirality may be used as a key tuning parameter in future device applications.
Brandt JR, Wang X, Yang Y, et al., 2016, Circularly Polarized Phosphorescent Electroluminescence with a High Dissymmetry Factor from PHOLEDs Based on a Platinahelicene, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 138, Pages: 9743-9746, ISSN: 0002-7863
Chen PB, Ding S, Zanghi G, et al., 2016, Plasmodium falciparum PfSET7: enzymatic characterization and cellular localization of a novel protein methyltransferase in sporozoite, liver and erythrocytic stage parasites, SCIENTIFIC REPORTS, Vol: 6, ISSN: 2045-2322
Davidson RWM, Fuchter MJ, 2016, Direct NHC-catalysed redox amidation using CO2 for traceless masking of amine nucleophiles, CHEMICAL COMMUNICATIONS, Vol: 52, Pages: 11638-11641, ISSN: 1359-7345
Scott DJ, Phillips NA, Sapsford JS, et al., 2016, Versatile Catalytic Hydrogenation Using A Simple Tin(IV) Lewis Acid, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Vol: 55, Pages: 14738-14742, ISSN: 1433-7851
Weston CE, Richardson RD, Fuchter MJ, 2016, Photoswitchable basicity through the use of azoheteroarenes, CHEMICAL COMMUNICATIONS, Vol: 52, Pages: 4521-4524, ISSN: 1359-7345
Weston CE, Richardson RD, Haycock PR, et al., 2016, "Arylazopyrazoles: Azoheteroarene Photoswitches Offering Quantitative Isomerization and Long Thermal Half-Lives (vol 136, pg 11878, 2014), JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol: 138, Pages: 10716-10716, ISSN: 0002-7863
Bultinck P, Cherblanc FL, Fuchter MJ, et al., 2015, Chiroptical Studies on Brevianamide B: Vibrational and Electronic Circular Dichroism Confronted, JOURNAL OF ORGANIC CHEMISTRY, Vol: 80, Pages: 3359-3367, ISSN: 0022-3263
Curry E, Green I, Chapman-Rothe N, et al., 2015, Dual EZH2 and EHMT2 histone methyltransferase inhibition increases biological efficacy in breast cancer cells, CLINICAL EPIGENETICS, Vol: 7, ISSN: 1868-7083
Di Fruscia P, Zacharioudakis E, Liu C, et al., 2015, The Discovery of a Highly Selective 5,6,7,8-Tetrahydrobenzo[4,5]thieno[ 2,3-d] pyrimidin-4(3H)-one SIRT2 Inhibitor that is Neuroprotective in an in vitro Parkinson's Disease Model, CHEMMEDCHEM, Vol: 10, Pages: 69-82, ISSN: 1860-7179
Fuchter MJ, 2015, Young Career Focus: Dr. Matthew J. Fuchter (Imperial College London, UK), SYNTHESIS-STUTTGART, Vol: 47, Pages: A152-A155, ISSN: 0039-7881
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