0000000001309035

AUTHOR

Julienne K. Muenzner

showing 3 related works from this author

Ferrocenyl-Coupled N-Heterocyclic Carbene Complexes of Gold(I)

2016

Four gold(I) carbene complexes featuring 4-ferro-cenyl-substituted imidazol-2-ylidene ligands were investigated for antiproliferative and antivascular properties. They were active against a panel of seven cancer cell lines, including multidrug-resistant ones, with low micromolar or nanomolar IC50 (72 h) values, according to their lipophilicity and cellular uptake. The delocalized lipophilic cationic complexes 8 and 10 acted by increasing the reactive oxygen species in two ways: through a genuine ferrocene effect and by inhibiting the thioredoxin reductase. Both complexes gave rise to a reorganization of the F-actin cytoskeleton in endothelial and melanoma cells, associated with a G1 phase c…

StereochemistryMetallocenesThioredoxin reductaseANTITUMOR-ACTIVITYDNA-BINDINGAntineoplastic AgentsCARCINOMA-CELLSCELLULAR UPTAKEPOTENTIAL ANTICANCER010402 general chemistrymetal-based drugs01 natural sciencesCatalysisantitumor agentschemistry.chemical_compoundMiceCoordination ComplexesAnimalsQDFerrous CompoundsIC50CANCER CELLSantivascular activitychemistry.chemical_classificationTube formationReactive oxygen species010405 organic chemistryChemistryOrganic ChemistryCell migrationGeneral ChemistryIN-VITROgold0104 chemical sciencescarbenesChorioallantoic membraneLipophilicityMETAL-COMPLEXESReactive Oxygen SpeciesTHIOREDOXIN REDUCTASE INHIBITORSCHORIOALLANTOIC MEMBRANE MODELCarbeneChemistry
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Gold(I) Biscarbene Complexes Derived from Vascular-Disrupting Combretastatin A-4 Address Different Targets and Show Antimetastatic Potential

2014

Gold N-heterocyclic carbene (NHC) complexes are an emerging class of anticancer drugs. We present a series of gold(I) biscarbene complexes with NHC ligands derived from the plant metabolite combretastatin A-4 (CA-4) that retain its vascular-disrupting effect, yet address different cellular and protein targets. Unlike CA-4, these complexes did not interfere with tubulin, but with the actin cytoskeleton of endothelial and cancer cells. For the highly metastatic 518A2 melanoma cell line this effect was accompanied by a marked accumulation of cells in the G1 phase of the cell cycle and a suppression of active prometastatic matrix metalloproteinase-2. Despite these mechanistic differences the co…

StereochemistryNeovascularization PhysiologicAntineoplastic AgentsBiologyBiochemistryMicechemistry.chemical_compoundCoordination ComplexesTubulinCell Line TumorBibenzylsDrug DiscoveryHuman Umbilical Vein Endothelial CellsAnimalsHumansGeneral Pharmacology Toxicology and PharmaceuticsMelanomaCell ProliferationPharmacologyCombretastatin A-4Tube formationCombretastatinMice Inbred BALB COrganic ChemistryCell cycleActin cytoskeletonG2 Phase Cell Cycle CheckpointsActin CytoskeletonChorioallantoic membranechemistryDrug Resistance NeoplasmCell cultureCancer cellMCF-7 CellsCancer researchMolecular MedicineGoldHT29 CellsMethaneChemMedChem
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CCDC 1500972: Experimental Crystal Structure Determination

2017

Related Article: Julienne K. Muenzner, Bernhard Biersack, Alexander Albrecht, Tobias Rehm, Ulrike Lacher, Wolfgang Milius, Angela Casini, Jing-Jing Zhang, Ingo Ott, Viktor Brabec, Olga Stuchlikova, Ion C. Andronache, Leonard Kaps, Detlef Schuppan, Rainer Schobert|2016|Chem.-Eur.J.|22|18953|doi:10.1002/chem.201604246

Space GroupCrystallographyCrystal Systembis(13-diethyl-4-(ferrocen-1-yl)-5-phenylimidazol-2-ylidene)-gold tetrafluoroborateCrystal StructureCell ParametersExperimental 3D Coordinates
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