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Zoumpoulaki M, Schanne G, Delsuc N, Preud'homme H, Quévrain E, Eskenazi N, Gazzah G, Guillot R, Seksik P, Vinh J, Lobinski R, Policar C. Deciphering the Metal Speciation in Low‐Molecular‐Weight Complexes by IMS‐MS: Application to the Detection of Manganese Superoxide Dismutase Mimics in Cell Lysates. Angew Chem Int Ed Engl 2022; 61:e202203066. [DOI: 10.1002/anie.202203066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Martha Zoumpoulaki
- Laboratoire des biomolécules (LBM) Département de chimie École normale supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
- SMBP ESPCI Paris PSL University, UMR 8249 CNRS France
- Centre de Recherche de Saint-Antoine, INSERM, UMRS 938 Sorbonne University, INSERM 75012 Paris France
| | - Gabrielle Schanne
- Laboratoire des biomolécules (LBM) Département de chimie École normale supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
- Centre de Recherche de Saint-Antoine, INSERM, UMRS 938 Sorbonne University, INSERM 75012 Paris France
| | - Nicolas Delsuc
- Laboratoire des biomolécules (LBM) Département de chimie École normale supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
| | | | - Elodie Quévrain
- Laboratoire des biomolécules (LBM) Département de chimie École normale supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
| | | | - Géraldine Gazzah
- Laboratoire des biomolécules (LBM) Département de chimie École normale supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
| | - Regis Guillot
- ICMMO UMR CNRS 8182 Université Paris-Saclay 91405 Orsay France
| | - Philippe Seksik
- Centre de Recherche de Saint-Antoine, INSERM, UMRS 938 Sorbonne University, INSERM 75012 Paris France
- Gastroenterology Department Saint-Antoine Hospital Sorbonne Université, APHP Paris France
| | - Joelle Vinh
- SMBP ESPCI Paris PSL University, UMR 8249 CNRS France
| | - Ryszard Lobinski
- Universite de Pau, CNRS, E2S, IPREM-UMR5254, Hélioparc 64053 Pau France
- Chair of Analytical Chemistry Warsaw University of Technology, Noakowskiego 3 00-664 Warsaw Poland
| | - Clotilde Policar
- Laboratoire des biomolécules (LBM) Département de chimie École normale supérieure PSL University, Sorbonne Université, CNRS 75005 Paris France
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Deciphering the Metal Speciation in Low‐Molecular‐Weight Complexes by IMS‐MS: Application to the Detection of Manganese Superoxide Dismutase Mimics in Cell Lysates. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3
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Chen Q, Cuello-Garibo JA, Bretin L, Zhang L, Ramu V, Aydar Y, Batsiun Y, Bronkhorst S, Husiev Y, Beztsinna N, Chen L, Zhou XQ, Schmidt C, Ott I, Jager MJ, Brouwer AM, Snaar-Jagalska BE, Bonnet S. Photosubstitution in a trisheteroleptic ruthenium complex inhibits conjunctival melanoma growth in a zebrafish orthotopic xenograft model. Chem Sci 2022; 13:6899-6919. [PMID: 35774173 PMCID: PMC9200134 DOI: 10.1039/d2sc01646j] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/13/2022] [Indexed: 12/28/2022] Open
Abstract
In vivo data are rare but essential for establishing the clinical potential of ruthenium-based photoactivated chemotherapy (PACT) compounds, a new family of phototherapeutic drugs that are activated via ligand photosubstitution. Here a novel trisheteroleptic ruthenium complex [Ru(dpp)(bpy)(mtmp)](PF6)2 ([2](PF6)2, dpp = 4,7-diphenyl-1,10-phenanthroline, bpy = 2,2′-bipyridine, mtmp = 2-methylthiomethylpyridine) was synthesized and its light-activated anticancer properties were validated in cancer cell monolayers, 3D tumor spheroids, and in embryonic zebrafish cancer models. Upon green light irradiation, the non-toxic mtmp ligand is selectively cleaved off, thereby releasing a phototoxic ruthenium-based photoproduct capable notably of binding to nuclear DNA and triggering DNA damage and apoptosis within 24–48 h. In vitro, fifteen minutes of green light irradiation (21 mW cm−2, 19 J cm−2, 520 nm) were sufficient to generate high phototherapeutic indexes (PI) for this compound in a range of cancer cell lines including lung (A549), prostate (PC3Pro4), conjunctival melanoma (CRMM1, CRMM2, CM2005.1) and uveal melanoma (OMM1, OMM2.5, Mel270) cancer cell lines. The therapeutic potential of [2](PF6)2 was further evaluated in zebrafish embryo ectopic (PC3Pro4) or orthotopic (CRMM1, CRMM2) tumour models. The ectopic model consisted of red fluorescent PC3Pro4-mCherry cells injected intravenously (IV) into zebrafish, that formed perivascular metastatic lesions at the posterior ventral end of caudal hematopoietic tissue (CHT). By contrast, in the orthotopic model, CRMM1- and CRMM2-mCherry cells were injected behind the eye where they developed primary lesions. The maximally-tolerated dose (MTD) of [2](PF6)2 was first determined for three different modes of compound administration: (i) incubating the fish in prodrug-containing water (WA); (ii) injecting the prodrug intravenously (IV) into the fish; or (iii) injecting the prodrug retro-orbitally (RO) into the fish. To test the anticancer efficiency of [2](PF6)2, the embryos were treated 24 h after engraftment at the MTD. Optimally, four consecutive PACT treatments were performed on engrafted embryos using 60 min drug-to-light intervals and 90 min green light irradiation (21 mW cm−2, 114 J cm−2, 520 nm). Most importantly, this PACT protocol was not toxic to the zebrafish. In the ectopic prostate tumour models, where [2](PF6)2 showed the highest photoindex in vitro (PI > 31), the PACT treatment did not significantly diminish the growth of primary lesions, while in both conjunctival melanoma orthotopic tumour models, where [2](PF6)2 showed more modest photoindexes (PI ∼ 9), retro-orbitally administered PACT treatment significantly inhibited growth of the engrafted tumors. Overall, this study represents the first demonstration in zebrafish cancer models of the clinical potential of ruthenium-based PACT, here against conjunctival melanoma. A new tris-heteroleptic photoactivated chemotherapy ruthenium complex induces apoptosis upon green light activation in a zebrafish orthothopic conjunctival melanoma xenograft model.![]()
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Affiliation(s)
- Quanchi Chen
- Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School Nanjing China.,Institute of Biology, Leiden University Leiden The Netherlands +31-71-527-4980
| | - Jordi-Amat Cuello-Garibo
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Ludovic Bretin
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Liyan Zhang
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Vadde Ramu
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Yasmin Aydar
- Institute of Biology, Leiden University Leiden The Netherlands +31-71-527-4980
| | - Yevhen Batsiun
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Sharon Bronkhorst
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Yurii Husiev
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Nataliia Beztsinna
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Lanpeng Chen
- Institute of Biology, Leiden University Leiden The Netherlands +31-71-527-4980
| | - Xue-Quan Zhou
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
| | - Claudia Schmidt
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig Beethovenstrasse 55 D-38106 Braunschweig Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig Beethovenstrasse 55 D-38106 Braunschweig Germany
| | - Martine J Jager
- Department of Ophthalmology, Leiden University Medical Center Leiden The Netherlands
| | - Albert M Brouwer
- Van't Hoff Institute for Molecular Sciences, University of Amsterdam Science Park 904 1098 XH Amsterdam The Netherlands
| | | | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Leiden University P. O. Box 9502 2300 RA Leiden The Netherlands +31-71-527-4260
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Xie X, Feng Y, Zhang H, Su Q, Song T, Yang G, Li N, Wei X, Li T, Qin X, Li S, Wu C, Zhang X, Wang G, Liu Y, Yang H. Remodeling tumor immunosuppressive microenvironment via a novel bioactive nanovaccines potentiates the efficacy of cancer immunotherapy. Bioact Mater 2022; 16:107-119. [PMID: 35386322 PMCID: PMC8958467 DOI: 10.1016/j.bioactmat.2022.03.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 02/06/2023] Open
Abstract
The clinical outcomes of cancer nanovaccine have been largely impeded owing to the low antigen-specific T cell response rate and acquired resistance caused by the immunosuppressive tumor microenvironment (TME). Here, we reported a tumor acidity-responsive nanovaccine to remodel the immunosuppressive TME and expand the recruitment of tumor infiltrating lymphocytes (TILs) using hybrid micelles (HM), which encapsulated colony stimulating factor 1 receptor (CSF1-R) inhibitor BLZ-945 and indoleamine 2,3-dioxygenase (IDO) inhibitor NLG-919 in its core and displayed a model antigen ovalbumin (OVA) on its surface (denoted as BN@HM-OVA). The bioactive nanovaccine is coated with a polyethylene glycol (PEG) shell for extending nanoparticle circulation. The shell can be shed in response to the weakly acidic tumor microenvironment. The decrease in size and the increase in positive charge may cause the deep tumor penetration of drugs. We demonstrated that the bioactive nanovaccine dramatically enhance antigen presentation by dendritic cells (DCs) and drugs transportation into M1-like tumor-associated macrophages (TAMs) and tumor cells via size reduction and increasing positive charge caused by the weakly acidic TME. Such bioactive nanovaccine could remodel the immunosuppressive TME into an effector T cells favorable environment, leading to tumor growth inhibition in prophylactic and therapeutic E.G7-OVA tumor models. Furthermore, combining the bioactive nanovaccine with simultaneous anti-PD-1 antibody treatment leads to a long-term tumor inhibition, based on the optimal timing and sequence of PD-1 blockade against T cell receptor. This research provides a new strategy for the development of efficient cancer immunotherapy. A bioactive nanovaccine (BN@HM-OVA) was adopted for synergistic immunotherapy of E.G7-OVA tumors. BN@HM-OVA exhibited superior ability to induce DCs maturation and robust antigen-specific T cell responses. BN@HM-OVA contributed to a homeostasis in the tumor microenvironment ideal for antitumor vaccination. The combination treatment of BN@HM-OVA and αPD-1 achieved maximum therapeutic benefits.
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Scattolin T, Lippmann P, Beliš M, Van Hecke K, Ottb I, Nolan SP. A simple synthetic entryway into (N‐heterocyclic carbene)gold‐steroidyl complexes and their anticancer activity. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas Scattolin
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Ghent Belgium
| | - Petra Lippmann
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig Braunschweig Germany
| | - Marek Beliš
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Ghent Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Ghent Belgium
| | - Ingo Ottb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig Braunschweig Germany
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Ghent Belgium
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Nahari G, Hoffman RE, Tshuva EY. From medium to endoplasmic reticulum: Tracing anticancer phenolato titanium(IV) complex by 19F NMR detection. J Inorg Biochem 2021; 221:111492. [PMID: 34051630 DOI: 10.1016/j.jinorgbio.2021.111492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/22/2021] [Accepted: 05/12/2021] [Indexed: 01/12/2023]
Abstract
Titanium(IV) complexes of diaminobis(phenolato)-bis(alkoxo) ligands are promising anticancer drugs, showing marked in-vivo efficacy with no toxic side-effects in mice, hence, it is of interest to elucidate their mechanism of action. Herein, we employed a fluoro-substituted derivative, FenolaTi, for mechanistic analysis of the active species and its cellular target by quantitative 19F NMR detection to reveal its biodistribution and reactivity in extracellular and intracellular matrices. Upon administration to the serum-containing medium, FenolaTi interacted with bovine serum albumin. 20 h post administration, the cellular accumulation of FenolaTi derivatives was estimated as 37% of the administered compound, in a concentration three orders-of-magnitude higher than the administered dose, implying that active membrane transportation facilitates cellular penetration. An additional 19% of the administered dose that was detected in the extracellular environment had originated from post-apoptotic cells. In the cell, interaction with cellular proteins was detected. Although some intact Ti(IV) complex localized in the nucleus, no signals for isolated DNA fractions were detected and no reactivity with nuclear proteins was observed. Interestingly, higher accumulation of FenolaTi-derived compounds in the endoplasmic reticulum (ER) and interaction with proteins therein were detected, supporting the role of the ER as a possible target for cytotoxic bis(phenolato)-bis(alkoxo) Ti(IV) complexes.
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Affiliation(s)
- Gilad Nahari
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Roy E Hoffman
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Edit Y Tshuva
- The Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.
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7
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Platinum alkynyl complexes: Cellular uptake, inhibition of thioredoxin reductase and toxicity in zebrafish embryos. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.118982] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Obermoser V, Baecker D, Schuster C, Braun V, Kircher B, Gust R. Chlorinated cobalt alkyne complexes derived from acetylsalicylic acid as new specific antitumor agents. Dalton Trans 2018; 47:4341-4351. [DOI: 10.1039/c7dt04790h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chlorine-substituted [(prop-2-ynyl)-2-acetoxybenzoate]dicobalthexacarbonyl complexes are selective COX-2 inhibitors with growth-inhibitory potential against COX-1/2 containing MDA-MB-231 and HT-29 tumor cell lines. The metabolic activity of non-tumorigenic HS-5 cells and COX-1/2-independent MCF-7 cells is not influenced.
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Affiliation(s)
- Victoria Obermoser
- Department of Pharmaceutical Chemistry
- Institute of Pharmacy
- Center for Molecular Biosciences Innsbruck
- University of Innsbruck
- CCB – Centrum for Chemistry and Biomedicine
| | - Daniel Baecker
- Department of Pharmaceutical Chemistry
- Institute of Pharmacy
- Center for Molecular Biosciences Innsbruck
- University of Innsbruck
- CCB – Centrum for Chemistry and Biomedicine
| | - Carina Schuster
- Department of Pharmaceutical Chemistry
- Institute of Pharmacy
- Center for Molecular Biosciences Innsbruck
- University of Innsbruck
- CCB – Centrum for Chemistry and Biomedicine
| | - Valentin Braun
- Department of Pharmaceutical Chemistry
- Institute of Pharmacy
- Center for Molecular Biosciences Innsbruck
- University of Innsbruck
- CCB – Centrum for Chemistry and Biomedicine
| | - Brigitte Kircher
- Immunobiology and Stem Cell Laboratory
- Department of Internal Medicine V (Hematology and Oncology)
- Innsbruck Medical University
- 6020 Innsbruck
- Austria
| | - Ronald Gust
- Department of Pharmaceutical Chemistry
- Institute of Pharmacy
- Center for Molecular Biosciences Innsbruck
- University of Innsbruck
- CCB – Centrum for Chemistry and Biomedicine
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Schmidt C, Karge B, Misgeld R, Prokop A, Franke R, Brönstrup M, Ott I. Gold(I) NHC Complexes: Antiproliferative Activity, Cellular Uptake, Inhibition of Mammalian and Bacterial Thioredoxin Reductases, and Gram-Positive Directed Antibacterial Effects. Chemistry 2017; 23:1869-1880. [DOI: 10.1002/chem.201604512] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Claudia Schmidt
- Institute of Medicinal and Pharmaceutical Chemistry; Technische Universität Braunschweig; Beethovenstrasse 55 38106 Braunschweig Germany
| | - Bianka Karge
- Department of Chemical Biology; Helmholtz Centre for Infection Research GmbH; Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Rainer Misgeld
- Department of Paedriatric Oncology; Children's Hospital Cologne; Amsterdamer Strasse 59 50735 Cologne Germany
| | - Aram Prokop
- Department of Paedriatric Oncology; Children's Hospital Cologne; Amsterdamer Strasse 59 50735 Cologne Germany
| | - Raimo Franke
- Department of Chemical Biology; Helmholtz Centre for Infection Research GmbH; Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Mark Brönstrup
- Department of Chemical Biology; Helmholtz Centre for Infection Research GmbH; Inhoffenstrasse 7 38124 Braunschweig Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry; Technische Universität Braunschweig; Beethovenstrasse 55 38106 Braunschweig Germany
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Vanicek S, Kopacka H, Wurst K, Vergeiner S, Kankowski S, Schur J, Bildstein B, Ott I. Cobaltoceniumethynyl gold(I) as an unusual heterodinuclear bioorganometallic fragment to study the biological properties of alkynyl gold complexes. Dalton Trans 2016; 45:1345-8. [PMID: 26732365 DOI: 10.1039/c5dt04796j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cobaltoceniumethynyl gold(i) complex with a triphenylphosphane ligand triggered efficient cytotoxic effects in cancer cells in contrast to a derivative with two cobaltocenium moieties. The complex effectively inhibited the enzyme thioredoxin reductase (TrxR) suggesting this enzyme as a possible biological target. The cellular uptake of both metal fragments of the active complex was studied by atomic absorption spectroscopy and indicated a high biological stability of the complex.
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Affiliation(s)
- S Vanicek
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - H Kopacka
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - K Wurst
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - S Vergeiner
- Institute of Organic Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria
| | - S Kankowski
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, 38106 Braunschweig, Germany.
| | - J Schur
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, 38106 Braunschweig, Germany.
| | - B Bildstein
- Institute of General, Inorganic and Theoretical Chemistry, University of Innsbruck, Center for Chemistry and Biomedicine, Innrain 80-82, A-6020 Innsbruck, Austria.
| | - I Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstr. 55, 38106 Braunschweig, Germany.
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Substitution of Metallocenes with [2.2]Paracyclophane to Enable Confocal Microscopy Imaging in Living Cells. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600281] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Study of the effect of the chromophore and nuclearity on the aggregation and potential biological activity of gold(I) alkynyl complexes. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.03.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Serebryanskaya TV, Lyakhov AS, Ivashkevich LS, Schur J, Frias C, Prokop A, Ott I. Gold(i) thiotetrazolates as thioredoxin reductase inhibitors and antiproliferative agents. Dalton Trans 2015; 44:1161-9. [DOI: 10.1039/c4dt03105a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gold(i) complexes with thiotetrazolate ligands are potent TrxR inhibitors with activity in drug resistant Nalm-6 cells.
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Affiliation(s)
- Tatiyana V. Serebryanskaya
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
- Research Institute for Physical Chemical Problems of the Belarusian State University
| | - Alexander S. Lyakhov
- Research Institute for Physical Chemical Problems of the Belarusian State University
- 220030 Minsk
- Belarus
| | - Ludmila S. Ivashkevich
- Research Institute for Physical Chemical Problems of the Belarusian State University
- 220030 Minsk
- Belarus
| | - Julia Schur
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| | - Corazon Frias
- Department of Paedriatric Oncology
- Children's Hospital Cologne
- 50735 Cologne
- Germany
| | - Aram Prokop
- Department of Paedriatric Oncology
- Children's Hospital Cologne
- 50735 Cologne
- Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
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Serebryanskaya TV, Zolotarev AA, Ott I. A novel aminotriazole-based NHC complex for the design of gold(i) anti-cancer agents: synthesis and biological evaluation. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00185d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel gold(i) complex based on an aminotriazole N-heterocylic carbene ligand represents a promising scaffold for the design of anticancer bioorganometallics.
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Affiliation(s)
- T. V. Serebryanskaya
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
- Institute of Chemistry
| | - A. A. Zolotarev
- Institute of Earth Sciences
- Saint Petersburg State University
- 199034 Saint Petersburg
- Russian Federation
| | - I. Ott
- Institute of Medicinal and Pharmaceutical Chemistry
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
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Rubbiani R, Zehnder TN, Mari C, Blacque O, Venkatesan K, Gasser G. Anticancer Profile of a Series of Gold(III) (2-phenyl)pyridine Complexes. ChemMedChem 2014; 9:2781-90. [DOI: 10.1002/cmdc.201402446] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Indexed: 12/21/2022]
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Rubbiani R, Salassa L, de Almeida A, Casini A, Ott I. Cytotoxic Gold(I) N-heterocyclic Carbene Complexes with Phosphane Ligands as Potent Enzyme Inhibitors. ChemMedChem 2014; 9:1205-10. [DOI: 10.1002/cmdc.201400056] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Indexed: 11/09/2022]
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Jortzik E, Farhadi M, Ahmadi R, Tóth K, Lohr J, Helmke BM, Kehr S, Unterberg A, Ott I, Gust R, Deborde V, Davioud-Charvet E, Réau R, Becker K, Herold-Mende C. Antiglioma activity of GoPI-sugar, a novel gold(I)-phosphole inhibitor: chemical synthesis, mechanistic studies, and effectiveness in vivo. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2014; 1844:1415-26. [PMID: 24440405 DOI: 10.1016/j.bbapap.2014.01.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/06/2013] [Accepted: 01/08/2014] [Indexed: 10/25/2022]
Abstract
Glioblastoma, an aggressive brain tumor, has a poor prognosis and a high risk of recurrence. An improved chemotherapeutic approach is required to complement radiation therapy. Gold(I) complexes bearing phosphole ligands are promising agents in the treatment of cancer and disturb the redox balance and proliferation of cancer cells by inhibiting disulfide reductases. Here, we report on the antitumor properties of the gold(I) complex 1-phenyl-bis(2-pyridyl)phosphole gold chloride thio-β-d-glucose tetraacetate (GoPI-sugar), which exhibits antiproliferative effects on human (NCH82, NCH89) and rat (C6) glioma cell lines. Compared to carmustine (BCNU), an established nitrosourea compound for the treatment of glioblastomas that inhibits the proliferation of these glioma cell lines with an IC50 of 430μM, GoPI-sugar is more effective by two orders of magnitude. Moreover, GoPI-sugar inhibits malignant glioma growth in vivo in a C6 glioma rat model and significantly reduces tumor volume while being well tolerated. Both the gold(I) chloro- and thiosugar-substituted phospholes interact with DNA albeit more weakly for the latter. Furthermore, GoPI-sugar irreversibly and potently inhibits thioredoxin reductase (IC50 4.3nM) and human glutathione reductase (IC50 88.5nM). However, treatment with GoPI-sugar did not significantly alter redox parameters in the brain tissue of treated animals. This might be due to compensatory upregulation of redox-related enzymes but might also indicate that the antiproliferative effects of GoPI-sugar in vivo are rather based on DNA interaction and inhibition of topoisomerase I than on the disturbance of redox equilibrium. Since GoPI-sugar is highly effective against glioblastomas and well tolerated, it represents a most promising lead for drug development. This article is part of a Special Issue entitled: Thiol-Based Redox Processes.
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Affiliation(s)
- E Jortzik
- Biochemistry and Molecular Biology, Justus Liebig University Giessen, Germany
| | - M Farhadi
- Division of Experimental Neurosurgery, Department of Neurosurgery, University of Heidelberg, Germany
| | - R Ahmadi
- Division of Experimental Neurosurgery, Department of Neurosurgery, University of Heidelberg, Germany
| | - K Tóth
- Division Biophysics of Macromolecules, German Cancer Research Center Heidelberg, Germany
| | - J Lohr
- Division of Experimental Neurosurgery, Department of Neurosurgery, University of Heidelberg, Germany
| | - B M Helmke
- Institute of Pathology, Elbe Klinikum Stade, Germany; Department of General Pathology, University of Heidelberg, Germany
| | - S Kehr
- Biochemistry and Molecular Biology, Justus Liebig University Giessen, Germany
| | - A Unterberg
- Division of Experimental Neurosurgery, Department of Neurosurgery, University of Heidelberg, Germany
| | - I Ott
- Institute of Pharmacy, Freie Universität Berlin, Germany; Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Germany
| | - R Gust
- Institute of Pharmacy, Freie Universität Berlin, Germany; Department of Pharmaceutical Chemistry, Institute of Pharmacy, University of Innsbruck, Austria
| | - V Deborde
- UMR 6509 Institut de Chimie, CNRS Université de Rennes, France
| | - E Davioud-Charvet
- UMR7509 CNRS and University of Strasbourg, European School of Chemistry, Polymers and Materials (ECPM), France; Center of Biochemistry, University of Heidelberg, Germany
| | - R Réau
- UMR 6509 Institut de Chimie, CNRS Université de Rennes, France
| | - K Becker
- Biochemistry and Molecular Biology, Justus Liebig University Giessen, Germany
| | - C Herold-Mende
- Division of Experimental Neurosurgery, Department of Neurosurgery, University of Heidelberg, Germany
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Quantification of the titanium content in metallodrug-exposed tumor cells using HR-CS AAS. ACTA ACUST UNITED AC 2014. [DOI: 10.2478/medr-2014-0001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
AbstractHigh-resolution continuum source atomic absorption spectroscopy (HR-CS AAS) is a valuable analytical technique for metal quantification because of its high sensitivity and selectivity for metal atoms as well as its improved background correction mode. However, the quantification of metals in biological materials, e.g. cell lysates, is still challenging because of matrix effects and other experimental complications. A method to quantify the titanium content of tumor cells exposed to titanium-based drugs was developed using HR-CS AAS. This method allows the quantification of titanium in cell suspensions in the low µg L
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Simpson PV, Schmidt C, Ott I, Bruhn H, Schatzschneider U. Synthesis, Cellular Uptake and Biological Activity Against Pathogenic Microorganisms and Cancer Cells of Rhodium and Iridium N-Heterocyclic Carbene Complexes Bearing Charged Substituents. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300820] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Liu W, Gust R. Metal N-heterocyclic carbene complexes as potential antitumor metallodrugs. Chem Soc Rev 2013; 42:755-73. [PMID: 23147001 DOI: 10.1039/c2cs35314h] [Citation(s) in RCA: 586] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Wukun Liu
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str 2+4, 14195 Berlin, Germany
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Gross A, Hüsken N, Schur J, Raszeja Ł, Ott I, Metzler-Nolte N. A ruthenocene-PNA bioconjugate--synthesis, characterization, cytotoxicity, and AAS-detected cellular uptake. Bioconjug Chem 2012; 23:1764-74. [PMID: 22823488 DOI: 10.1021/bc200692g] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Labeling of peptide nucleic acids (PNA) with metallocene complexes is explored herein for the modulation of the analytical characteristics, as well as biological properties of PNA. The synthesis of the first ruthenocene-PNA conjugate with a dodecamer, mixed-sequence PNA is described, and its properties are compared to a ferrocene-labeled analogue as well as an acetylated, metal-free derivative. The synthetic characteristics, chemical stability, analytical and thermodynamic properties, and the interaction with cDNA were investigated. Furthermore, the cytotoxicity of the PNA conjugates is determined on HeLa, HepG2, and PT45 cell lines. Finally, the cellular uptake of the metal-containing PNAs was quantified by high-resolution continuum source atomic absorption spectrometry (HR-CS AAS). An unexpectedly high cellular uptake to final concentrations of 4.2 mM was observed upon incubation with 50 μM solutions of the ruthenocene-PNA conjugate. The ruthenocene label was shown to be an excellent label in all respects, which is also more stable than its ferrocene analogue. Because of its high stability, low toxicity, and the lack of a natural background of ruthenium, it is an ideal choice for bioanalytical purposes and possible medicinal and biological applications like, e.g., the development of gene-targeted drugs.
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Affiliation(s)
- Annika Gross
- Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstrasse 150, D-44801 Bochum, Germany
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Liu W, Bensdorf K, Proetto M, Hagenbach A, Abram U, Gust R. Synthesis, Characterization, and in Vitro Studies of Bis[1,3-diethyl-4,5-diarylimidazol-2-ylidene]gold(I/III) Complexes. J Med Chem 2012; 55:3713-24. [DOI: 10.1021/jm3000196] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wukun Liu
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse 2 + 4, 14195 Berlin, Germany
| | - Kerstin Bensdorf
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse 2 + 4, 14195 Berlin, Germany
| | - Maria Proetto
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse 2 + 4, 14195 Berlin, Germany
| | - Adelheid Hagenbach
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany
| | - Ulrich Abram
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstrasse 34-36, 14195 Berlin, Germany
| | - Ronald Gust
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse 2 + 4, 14195 Berlin, Germany
- Institute of Pharmacy, University Innsbruck, Innrain 80/82, A-6020 Innsbruck, Austria
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Köster SD, Alborzinia H, Can S, Kitanovic I, Wölfl S, Rubbiani R, Ott I, Riesterer P, Prokop A, Merz K, Metzler-Nolte N. A spontaneous gold(i)-azide alkyne cycloaddition reaction yields gold-peptide bioconjugates which overcome cisplatin resistance in a p53-mutant cancer cell line. Chem Sci 2012. [DOI: 10.1039/c2sc01127a] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Liu W, Bensdorf K, Proetto M, Abram U, Hagenbach A, Gust R. NHC Gold Halide Complexes Derived from 4,5-Diarylimidazoles: Synthesis, Structural Analysis, and Pharmacological Investigations as Potential Antitumor Agents. J Med Chem 2011; 54:8605-15. [DOI: 10.1021/jm201156x] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wukun Liu
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse,
2+4, 14195 Berlin, Germany
| | - Kerstin Bensdorf
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse,
2+4, 14195 Berlin, Germany
| | - Maria Proetto
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse,
2+4, 14195 Berlin, Germany
| | - Ulrich Abram
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstrasse 34-36,
14195 Berlin, Germany
| | - Adelheid Hagenbach
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Fabeckstrasse 34-36,
14195 Berlin, Germany
| | - Ronald Gust
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Strasse,
2+4, 14195 Berlin, Germany
- Institute
of Pharmacy, University of Innsbruck, Innrain
52, A-6020 Innsbruck,
Austria
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Rubbiani R, Can S, Kitanovic I, Alborzinia H, Stefanopoulou M, Kokoschka M, Mönchgesang S, Sheldrick WS, Wölfl S, Ott I. Comparative in vitro evaluation of N-heterocyclic carbene gold(I) complexes of the benzimidazolylidene type. J Med Chem 2011; 54:8646-57. [PMID: 22039997 DOI: 10.1021/jm201220n] [Citation(s) in RCA: 201] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gold(I) complexes with a 1,3-diethylbenzimidazol-2-ylidene N-heterocyclic carbene (NHC) ligand of the type NHC-Au-L (L=-Cl, -NHC, or -PPh3) were comparatively evaluated as thioredoxin reductase (TrxR) inhibitors and antimitochondrial anticancer agents. Different effects were noted in various biochemical assays (e.g., inhibition of TrxR, cellular and mitochondrial uptake, or effects on mitochondrial membrane potential), and this was related to properties of the complexes such as bond dissociation energies and overall charge. Remarkable antiproliferative effects, a strong induction of apoptosis, and enhancement of reactive oxygen species (ROS) formation as well as other effects on tumor cell metabolism confirmed the promising potential of the complexes as novel anticancer chemotherapeutics.
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Affiliation(s)
- Riccardo Rubbiani
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
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Polgári Z, Ajtony Z, Kregsamer P, Streli C, Mihucz VG, Réti A, Budai B, Kralovánszky J, Szoboszlai N, Záray G. Microanalytical method development for Fe, Cu and Zn determination in colorectal cancer cells. Talanta 2011; 85:1959-65. [DOI: 10.1016/j.talanta.2011.07.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 06/23/2011] [Accepted: 07/07/2011] [Indexed: 10/18/2022]
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Medicinal and Pharmaceutical Chemistry Prize: A. Bender and I. Ott / Carl Duisberg Prize: C. G. Hartinger / Horst Pracejus Prize: U. J. Meierhenrich / BASF Catalysis Award: T. Ritter. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/anie.201102246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Preis in Medizinischer/Pharmazeutischer Chemie: A. Bender und I. Ott / Carl-Duisberg-Gedächtnispreis: C. G. Hartinger / Horst-Pracejus-Preis: U. J. Meierhenrich / BASF Catalysis Award: T. Ritter. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Geldmacher Y, Kitanovic I, Alborzinia H, Bergerhoff K, Rubbiani R, Wefelmeier P, Prokop A, Gust R, Ott I, Wölfl S, Sheldrick WS. Cellular Selectivity and Biological Impact of Cytotoxic Rhodium(III) and Iridium(III) Complexes Containing Methyl‐Substituted Phenanthroline Ligands. ChemMedChem 2011; 6:429-39. [DOI: 10.1002/cmdc.201000517] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 01/11/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Yvonne Geldmacher
- Fakultät für Chemie und Biochemie, Ruhr‐Universität Bochum, 44780 Bochum (Germany), Fax: (+49) 234‐3214420
| | - Igor Kitanovic
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - Hamed Alborzinia
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - Katharina Bergerhoff
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - Riccardo Rubbiani
- Institut für Pharmazeutische Chemie, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig (Germany)
| | - Pascal Wefelmeier
- Department of Pediatric Oncology, Children's Hospital of Cologne, Amsterdamer Straße 59, 50735 Cologne (Germany)
| | - Aram Prokop
- Department of Pediatric Oncology, Children's Hospital of Cologne, Amsterdamer Straße 59, 50735 Cologne (Germany)
| | - Ronald Gust
- Institut für Pharmazie, Freie‐Universität Berlin, Königin‐Luise‐Straße 2‐4, 14195 Berlin (Germany)
| | - Ingo Ott
- Institut für Pharmazeutische Chemie, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig (Germany)
| | - Stefan Wölfl
- Institut für Pharmazie und Molekulare Biotechnologie, Ruprecht‐Karls‐Universität Heidelberg, Im Neuenheimer Feld 364, 69120 Heidelberg (Germany)
| | - William S. Sheldrick
- Fakultät für Chemie und Biochemie, Ruhr‐Universität Bochum, 44780 Bochum (Germany), Fax: (+49) 234‐3214420
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Prast-Nielsen S, Cebula M, Pader I, Arnér ESJ. Noble metal targeting of thioredoxin reductase--covalent complexes with thioredoxin and thioredoxin-related protein of 14 kDa triggered by cisplatin. Free Radic Biol Med 2010; 49:1765-78. [PMID: 20851179 DOI: 10.1016/j.freeradbiomed.2010.09.008] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 09/08/2010] [Accepted: 09/10/2010] [Indexed: 01/26/2023]
Abstract
Palladium (Pd), platinum (Pt), and gold (Au) are noble metals, two of which have established medical use. Pt has anticancer efficacy, predominantly as cisplatin, whereas the gold compound auranofin is used against arthritis. Both compounds inhibit the selenoprotein thioredoxin reductase (TrxR), but Pd has not been studied in this regard. Using salts of Pd, Pt, and Au as well as cisplatin and auranofin we found that Pd and Au were strikingly more potent inhibitors of recombinant TrxR1 than Pt. The TrxR-related nonselenoprotein glutathione reductase in pure form (but less so in a cellular context), as well as cellular thioredoxin (Trx) activities, were inhibited by the gold salt KAuCl(4) but were little affected by auranofin or the other compounds. In an analysis of three cancer cell lines, the extent of inhibition of TrxR activity and decrease in cell viability depended upon the choice of both noble metal and ligand and also seemed independent of p53 status. During treatment of cells with cisplatin, covalent complexes of TrxR1 with either Trx1 or TRP14 (Trx-related protein of 14kDa) were formed, as verified by Western blot analyses and mass spectrometry. These results reveal that Au and Pd are strong inhibitors of TrxR, but Pt and cisplatin trigger highly specific cellular effects on the Trx system, including covalent cross-linking of TrxR1 with Trx1 and TRP14.
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Affiliation(s)
- Stefanie Prast-Nielsen
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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Proteomic and transcriptomic characterization of a virulence-deficient phosphatidylcholine-negative Agrobacterium tumefaciens mutant. Mol Genet Genomics 2010; 283:575-89. [DOI: 10.1007/s00438-010-0542-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Accepted: 04/21/2010] [Indexed: 10/19/2022]
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Scheffler H, You Y, Ott I. Comparative studies on the cytotoxicity, cellular and nuclear uptake of a series of chloro gold(I) phosphine complexes. Polyhedron 2010. [DOI: 10.1016/j.poly.2009.06.007] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Walther C, Ott I, Gust R, Neundorf I. Specific labeling with potent radiolabels alters the uptake of cell-penetrating peptides. Biopolymers 2009; 92:445-51. [PMID: 19399852 DOI: 10.1002/bip.21218] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Radiolabeled peptides play an important role in radiopharmacy not only as tumor markers but also as transport vectors. Therefore, cell-penetrating peptides (CPP) may serve as very effective delivery tools, as well. Recently, CPP based on the human hormone calcitonin (hCT) have been developed. Especially, branched hCT-peptide sequences turned out to have highly efficient internalization capacities. Labeling these peptides with radionuclides would generate promising new tools for imaging and therapy applications in radiopharmacy. However, the influence of the metal complexation on the internalization capacity of CPP has not been elucidated yet in detail. In this study we quantified the uptake of Ga-DOTA modified hCT-carrier peptides in HeLa cells by using atomic absorption spectroscopy (AAS) and compared the results to the uptake of fluorescently-labeled peptides. Interestingly, we measured different uptake rates depending on the attached label. Unexpectedly, modification with a Ga-DOTA complex can have tremendous effects on the uptake efficiency. The results of these studies support the need of detailed analysis of each carrier peptide/cargo construct, especially in the field of metal complex modified CPP.
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Affiliation(s)
- Cornelia Walther
- Institute of Biochemistry, Faculty of Biosciences, Pharmacy and Psychology, University of Leipzig, Leipzig, Germany
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Ali Nazif M, Bangert JA, Ott I, Gust R, Stoll R, Sheldrick WS. Dinuclear organoiridium(III) mono- and bis-intercalators with rigid bridging ligands: Synthesis, cytotoxicity and DNA binding. J Inorg Biochem 2009; 103:1405-14. [DOI: 10.1016/j.jinorgbio.2009.08.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2009] [Revised: 08/06/2009] [Accepted: 08/06/2009] [Indexed: 10/20/2022]
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Bieda R, Ott I, Gust R, Sheldrick WS. Cytotoxic Rhodium(III) Polypyridyl Complexes Containing the Tris(pyrazolyl)methane Coligand: Synthesis, DNA Binding Properties and Structure-Activity Relationships. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900373] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bieda R, Ott I, Dobroschke M, Prokop A, Gust R, Sheldrick WS. Structure–activity relationships and DNA binding properties of apoptosis inducing cytotoxic rhodium(III) polypyridyl complexes containing the cyclic thioether [9]aneS3. J Inorg Biochem 2009; 103:698-708. [DOI: 10.1016/j.jinorgbio.2009.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2008] [Revised: 01/05/2009] [Accepted: 01/07/2009] [Indexed: 11/26/2022]
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Ott I, Qian X, Xu Y, Vlecken DHW, Marques IJ, Kubutat D, Will J, Sheldrick WS, Jesse P, Prokop A, Bagowski CP. A gold(I) phosphine complex containing a naphthalimide ligand functions as a TrxR inhibiting antiproliferative agent and angiogenesis inhibitor. J Med Chem 2009; 52:763-70. [PMID: 19123857 DOI: 10.1021/jm8012135] [Citation(s) in RCA: 156] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The novel luminescent gold(I) complex [N-(N',N'-dimethylaminoethyl)-1,8-naphthalimide-4-sulfide](triethylphosphine)gold(I) was prepared and investigated for its primary biological properties. Cell culture experiments revealed strong antiproliferative effects and induction of apoptosis via mitochondrial pathways. Biodistribution studies by fluorescence microscopy and atomic absorption spectroscopy showed the uptake into cell organelles, an accumulation in the nuclei of tumor cells, and a homogeneous distribution in zebrafish embryos. In vivo monitoring of vascularisation in developing zebrafish embryos revealed a significant anti-angiogenic potency of the complex. Mechanistic experiments indicated that the inhibition of thioredoxin reductase (based on the covalent binding of a gold triethylphosphine fragment) might be involved in the pharmacodynamic behavior of this novel gold species.
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Affiliation(s)
- Ingo Ott
- Institute of Pharmacy, Freie Universitat Berlin, Konigin-Luise-Strasse 2+4, 14195 Berlin, Germany.
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Microwave-assisted solid-phase synthesis, cellular uptake, and cytotoxicity studies of cymantrene–peptide bioconjugates. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.07.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Bagowski CP, You Y, Scheffler H, Vlecken DH, Schmitz DJ, Ott I. Naphthalimide gold(i) phosphine complexes as anticancer metallodrugs. Dalton Trans 2009:10799-805. [DOI: 10.1039/b912378d] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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41
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Atomic absorption spectrometric determination of the iridium content in tumor cells exposed to an iridium metallodrug. J Pharm Biomed Anal 2008; 47:938-42. [DOI: 10.1016/j.jpba.2008.02.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2007] [Revised: 01/07/2008] [Accepted: 02/26/2008] [Indexed: 11/19/2022]
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Scharwitz MA, Ott I, Gust R, Kromm A, Sheldrick WS. Synthesis, cellular uptake and structure-activity relationships for potent cytotoxic trichloridoiridium(III) polypyridyl complexes. J Inorg Biochem 2008; 102:1623-30. [DOI: 10.1016/j.jinorgbio.2008.03.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2008] [Revised: 02/25/2008] [Accepted: 03/17/2008] [Indexed: 11/30/2022]
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Schatzschneider U, Niesel J, Ott I, Gust R, Alborzinia H, Wölfl S. Cellular Uptake, Cytotoxicity, and Metabolic Profiling of Human Cancer Cells Treated with Ruthenium(II) Polypyridyl Complexes [Ru(bpy)2(NN)]Cl2with NN=bpy, phen, dpq, dppz, and dppn. ChemMedChem 2008; 3:1104-9. [DOI: 10.1002/cmdc.200800039] [Citation(s) in RCA: 226] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kirin SI, Ott I, Gust R, Mier W, Weyhermüller T, Metzler-Nolte N. Cellular uptake quantification of metalated peptide and peptide nucleic acid bioconjugates by atomic absorption spectroscopy. Angew Chem Int Ed Engl 2008; 47:955-9. [PMID: 18092311 DOI: 10.1002/anie.200703994] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Srecko I Kirin
- Department of Chemistry and Biochemistry, University of Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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Niesel J, Pinto A, Peindy N'Dongo HW, Merz K, Ott I, Gust R, Schatzschneider U. Photoinduced CO release, cellular uptake and cytotoxicity of a tris(pyrazolyl)methane (tpm) manganese tricarbonyl complex. Chem Commun (Camb) 2008:1798-800. [PMID: 18379697 DOI: 10.1039/b719075a] [Citation(s) in RCA: 236] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cell viability studies of HT29 colon cancer cells treated with the CO-releasing compound [Mn(CO)(3)(tpm)]PF(6) revealed a significant photoinduced cytotoxicity comparable to that of established agent 5-fluorouracil (5-FU), while controls kept in the dark were unaffected at up to 100 microM.
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Affiliation(s)
- Johanna Niesel
- Lehrstuhl für Anorganische Chemie I-Bioanorganische Chemie, Ruhr-Universität Bochum NC 3/74, Universitätsstrasse 150, D-44801 Bochum, Germany
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Kirin S, Ott I, Gust R, Mier W, Weyhermüller T, Metzler-Nolte N. Quantifizierung der Zellaufnahme metallierter Peptide und Peptidnucleinsäuren durch Atomabsorptionsspektroskopie. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200703994] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Schäfer S, Ott I, Gust R, Sheldrick WS. Influence of the Polypyridyl (pp) Ligand Size on the DNA Binding Properties, Cytotoxicity and Cellular Uptake of Organoruthenium(II) Complexes of the Type [(η6-C6Me6)Ru(L)(pp)]n+ [L = Cl,n = 1; L = (NH2)2CS,n = 2]. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700206] [Citation(s) in RCA: 149] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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