Home

Person

Tina Riedel

This person has left EPFL

About
Privacy
Disclaimer

Graph Chatbot

Related publications (39)

Page 1 of 2

Synthesis, Structure, and Anticancer Activity of Arene-Ruthenium(II) Complexes with Acylpyrazolones Bearing Aliphatic Groups in the Acyl Moiety

Paul Joseph Dyson, Rosario Scopelliti, Tina Riedel

A series of neutral ruthenium(II) arene complexes [(arene)Ru(Q(R))Cl] (arene = p-cymene (cym) or hexamethylbenzene (hmb)) containing 4-acyl-5-pyrazolonate Q(R) ligands with different electronic and steric substituents (R = 4-cyclohexyl, 4-stearoyl, or 4-ad ...

American Chemical Society2016

Synthesis and evaluation of new polynuclear organometallic Ru(II), Rh(III) and Ir(III) pyridyl ester complexes as in vitro antiparasitic and antitumor agents

Paul Joseph Dyson, Tina Riedel

New polynuclear organometallic Platinum Group Metal (PGM) complexes containing di- and tripyridyl ester ligands have been synthesised and characterised using analytical and spectroscopic techniques including H-1, C-13 NMR and infrared spectroscopy. Reactio ...

2014

Synthesis and In Vitro (Anticancer) Evaluation of eta(6)-Arene Ruthenium Complexes Bearing Stannyl Ligands

Paul Joseph Dyson, Tina Riedel

Treatment of the known half-sandwich complexes of the type [(eta(6)-C6H6)RuCl2(P(OR)(3))] (R = Me or Ph) with SnCl2 yielded three new half-sandwich ruthenium complexes (C1-C3): [(eta(6)-C6H6)RuCl(SnCl3)(P(OMe)(3))] (C1), [(eta(6)-C6H6)RuCl(SnCl3)(P(OPh)(3) ...

2017

Arene Osmium Complexes with Ethacrynic Acid-Modified Ligands: Synthesis, Characterization, and Evaluation of Intracellular Glutathione S-Transferase Inhibition and Antiproliferative Activity

Paul Joseph Dyson, Tina Riedel, Emilia Paunescu

Four arene osmium complexes were prepared containing derivatives of ethacrynic acid, a potent inhibitor of glutathione Stransferases, either by direct coordination or via N- or P-donor ligands. The complexes were characterized by spectroscopic and analytic ...

American Chemical Society2016

Vascular-targeted low dose photodynamic therapy stabilizes tumor vessels by modulating pericyte contractility

Paul Joseph Dyson, Georges Wagnières, Tina Riedel, Matthieu Philippe Emmanuel Zellweger

Vascular-targeted low-dose photodynamic therapy (L-PDT) was shown to improve chemotherapy distribution in malignant pleural tumors such as malignant pleural mesothelioma (MPM). However, the mechanisms triggered by L-PDT on the tumor vasculature are still d ...

WILEY2019

Cytotoxicity of arene ruthenium metalla-rectangles incorporating bis-pyridyl diimide linkers

Paul Joseph Dyson, Tina Riedel

A series of tetranuclear arene ruthenium complexes of the general formula [Ru-4(p-cymene)(4)(mu(2)-L)(2)(mu(4)-OO boolean AND OO)(2)]CF3SO3 (L-1 = N,N'-bis(4-pyridylmethyl)-pyromellitic diimide, L-2 = N,N'-bis(4-pyridylmethyl)-naphthalene diimide) wer ...

Elsevier2016

Chemo-manipulation of tumor blood vessels by a metal-based anticancer complex enhances antitumor therapy

Paul Joseph Dyson, Hubert van den Bergh, Tina Riedel

Human pleural mesothelioma is an incurable and chemoresistant cancer. Using a nude mouse xenograft model of human pleural mesothelioma, we show that RAPTA-T, a compound undergoing preclinical evaluation, enhances tumor vascular function by decreasing blood ...

Nature Research2018

Iridium-Stabilized pi-Selenocyclohexadienyls: Synthesis, Molecular Structure, and Cytotoxicity

Paul Joseph Dyson, Tina Riedel

A series of iridium-stabilized selenocyclohexadienyls of general formula [CpIr((5)-C6H5-nMenSe)][BF4] {Cp = (5)-C5Me5, n = 0, n = 1, and n = 3} is described, with the selenocyclohexadienyl unit being isolated for the first time by -coordination to a Cp*I ...

Georg Thieme Verlag Kg2015

Perfluorinated HDAC inhibitors as selective anticancer agents

Paul Joseph Dyson, Tina Riedel

A series of potent histone deacetylase inhibitors is presented that incorporate alkyl or perfluorinated alkyl chains. Several new compounds show greater in vitro antiproliferative activity than the clinically approved inhibitor, SAHA. Furthermore, the new ...

Royal Society of Chemistry2017

Nucleosome acidic patch-targeting binuclear ruthenium compounds induce aberrant chromatin condensation

Paul Joseph Dyson, Tina Riedel, Benjamin Samuel Murray

The 'acidic patch' is a highly electronegative cleft on the histone H2A-H2B dimer in the nucleosome. It is a fundamental motif for protein binding and chromatin dynamics, but the cellular impact of targeting this potentially therapeutic site with exogenous ...

Nature Research2017

Cytotoxic double arene ruthenium metalla-cycles that overcome cisplatin resistance

Paul Joseph Dyson, Tina Riedel, Mylène Soudani

Tetranuclear arene ruthenium complexes of the general formula {Ru-2(p-cymene)(2)(mu(4)-L)}(2)(mu(4)-tpom) (tpom = tetrakis(4-pyridyloxymethylene)methane) were obtained from the corresponding dinuclear arene ruthenium complexes [Ru-2(p-cymene)(2)(m(4) ...

Elsevier Science Sa2016

Synthesis, characterization and cytotoxicity of arene-ruthenium(II) complexes with acylpyrazolones functionalized with aromatic groups in the acyl moiety

Paul Joseph Dyson, Rosario Scopelliti, Tina Riedel

A series of neutral ruthenium(II)-arene complexes, [(arene) Ru(Q(R))Cl] (arene = p-cymene or hexamethylbenzene), containing 4-acyl-5-pyrazolonate (Q(R)) ligands with aromatic substituents in the acyl moiety (a phenyl in Q(Ph) and a 1-naphthyl in Q(naph)) a ...

2018

Versatile Route to trans-Platinum(II) Complexes via Manipulation of a Coordinated 3-(Pyridin-3-yl)propanoicAcid Ligand

Paul Joseph Dyson, Tina Riedel

We describe the direct coupling of alcohols and amines to a 3-(pyridin-3-yl)propanoic acid ligand coordinated to a Pt(II) to afford ester and amide derivatives. Using this approach, a family of trans-Pt(II) compounds with amine ligands bearing long perfluo ...

2019

Synthesis and Antiproliferative Activity of New Ruthenium Complexes with Ethacrynic-Acid-Modified Pyridine and Triphenylphosphine Ligands

Paul Joseph Dyson, Tina Riedel, Emilia Paunescu

Pyridine- and phosphine-based ligands modified with ethacrynic acid (a broad acting glutathione transferase inhibitor) were prepared and coordinated to ruthenium(II)-arene complexes and to a ruthenium(III) NAMI-A type complex. All the compounds (ligands an ...

Amer Chemical Soc2015

Fighting Cancer with Transition Metal Complexes: From Naked DNA to Protein and Chromatin Targeting Strategies

Paul Joseph Dyson, Ursula Röthlisberger, Tina Riedel, Giulia Palermo, Thibaud Edouard Alistair von Erlach

Many transition metal complexes have unique physicochemical properties that can be efficiently exploited in medicinal chemistry for cancer treatment. Traditionally, double-stranded DNA has been assumed to be the main binding target; however, recent studies ...

2016

Synthesis, characterisation and cytotoxicity studies of ruthenium arene complexes bearing trichlorogermyl ligands

Paul Joseph Dyson, Tina Riedel

The synthesis of five half sandwich ruthenium(II) trichlorogermyl complexes of the type [(η6-Arene)Ru(PR3)Cl(GeCl3)] (PR3 = Phosphane and phosphite ligands; Arene = p-cymene or C6H5-OC2H4OH) is reported: [(η6-p-cymene)Ru(P(OMe)3)Cl(GeCl3)] (1), [(η6-p-cyme ...

2019

Allosteric cross-talk in chromatin can mediate drug-drug synergy

Paul Joseph Dyson, Ursula Röthlisberger, Tina Riedel, Giulia Palermo

Exploitation of drug-drug synergism and allostery could yield superior therapies by capitalizing on the immensely diverse, but highly specific, potential associated with the biological macromolecular landscape. Here we describe a drug-drug synergy mediated ...

Nature Research2017

Cytotoxic Half-Sandwich Rh(III) and Ir(III) beta-Diketonates

Paul Joseph Dyson, Rosario Scopelliti, Tina Riedel, Agnese Petrini

A series of half-sandwich pentamethylcyclopentadienyl rhodium(III) and iridium(III) complexes [CpM(DBM/ HDB/AVB)Cl] and [CpM(DBM/HDB/AVB)(PTA)]-[SO3CF3], where Cp* = pentamethylcyclopentadienyl, the proligands DBMH = dibenzoylmethane, HDBH = o-hydroxydi- ...

American Chemical Society2017

Synthesis of Triazenes with Nitrous Oxide

Paul Joseph Dyson, Rosario Scopelliti, Kay Severin, Tina Riedel, Gregor Kiefer

Triazenes are valuable compounds in organic chemistry and numerous applications have been reported. Furthermore, triazenes have been investigated extensively as potential antitumor drugs. Here, we describe a new method for the synthesis of triazenes. The p ...

Wiley-Blackwell2015

Drug Repurposing Approach Identifies a Synergistic Drug Combination of an Antifungal Agent and an Experimental Organometallic Drug for Melanoma Treatment

Paul Joseph Dyson, Olivier Pierre Zava, Tina Riedel

By screening a drug library comprising FDA approved compounds, we discovered a potent interaction between the antifungal agent haloprogin and the experimental organometallic drug RAPTA-T, to synergistically induce cancer cell killing. The combination of th ...

2018