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Squarcina A, Franke A, Senft L, Onderka C, Langer J, Vignane T, Filipovic MR, Grill P, Michalke B, Ivanović-Burmazović I. Zinc complexes of chloroquine and hydroxychloroquine versus the mixtures of their components: Structures, solution equilibria/speciation and cellular zinc uptake. J Inorg Biochem 2024; 252:112478. [PMID: 38218140 DOI: 10.1016/j.jinorgbio.2024.112478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/22/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024]
Abstract
The zinc complexes of chloroquine (CQ; [Zn(CQH+)Cl3]) and hydroxychloroquine (HO-CQ; [Zn(HO-CQH+)Cl3]) were synthesized and characterized by X-Ray structure analysis, FT-IR, NMR, UV-Vis spectroscopy, and cryo-spray mass spectrometry in solid state as well as in aqueous and organic solvent solutions, respectively. In acetonitrile, up to two Zn2+ ions bind to CQ and HO-CQ through the tertiary amine and aromatic nitrogen atoms (KN-aminCQ = (3.8 ± 0.5) x 104 M-1 and KN-aromCQ = (9.0 ± 0.7) x 103 M-1 for CQ, and KN-aminHO-CQ = (3.3 ± 0.4) x 104 M-1 and KN-aromHO-CQ = (1.6 ± 0.2) x 103 M-1 for HO-CQ). In MOPS buffer (pH 7.4) the coordination proceeds through the partially deprotonated aromatic nitrogen, with the corresponding equilibrium constants of KN-arom(aq)CQ = (3.9 ± 1.9) x 103 M-1and KN-arom(aq)HO-CQ = (0.7 + 0.4) x 103 M-1 for CQ and HO-CQ, respectively. An apparent partition coefficient of 0.22 was found for [Zn(CQH+)Cl3]. Mouse embryonic fibroblast (MEF) cells were treated with pre-synthesized [Zn((HO-)CQH+)Cl3] complexes and corresponding ZnCl2/(HO-)CQ mixtures and zinc uptake was determined by application of the fluorescence probe and ICP-OES measurements. Administration of pre-synthesized complexes led to higher total zinc levels than those obtained upon administration of the related zinc/(hydroxy)chloroquine mixtures. The differences in the zinc uptake between these two types of formulations were discussed in terms of different speciation and character of the complexes. The obtained results suggest that intact zinc complexes may exhibit biological effects distinct from that of the related zinc/ligand mixtures.
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Affiliation(s)
- Andrea Squarcina
- Department of Chemistry, Ludwig-Maximilians Universität (LMU) München, München 81377, Germany
| | - Alicja Franke
- Department of Chemistry, Ludwig-Maximilians Universität (LMU) München, München 81377, Germany
| | - Laura Senft
- Department of Chemistry, Ludwig-Maximilians Universität (LMU) München, München 81377, Germany
| | - Constantin Onderka
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Jens Langer
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Thibaut Vignane
- Leibniz Institute for Analytical Sciences, ISAS e.V., 44227 Dortmund, Germany
| | - Milos R Filipovic
- Leibniz Institute for Analytical Sciences, ISAS e.V., 44227 Dortmund, Germany
| | - Peter Grill
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich, 85764 Neuherberg, Germany
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Center Munich, 85764 Neuherberg, Germany
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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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3
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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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4
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Inertness of Superoxide Dismutase Mimics Mn(II) Complexes Based on an Open-Chain Ligand, Bioactivity, and Detection in Intestinal Epithelial Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3858122. [PMID: 35401918 PMCID: PMC8993562 DOI: 10.1155/2022/3858122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 01/03/2022] [Accepted: 01/29/2022] [Indexed: 12/22/2022]
Abstract
Oxidative stress is known to play a major role in the pathogenesis of inflammatory bowel diseases (IBDs), and, in particular, superoxide dismutase (SODs) defenses were shown to be weakened in patients suffering from IBDs. SOD mimics, also called SOD mimetics, as low-molecular-weight complexes reproducing the activity of SOD, constitute promising antioxidant catalytic metallodrugs in the context of IBDs. A Mn(II) complex SOD mimic (Mn1) based on an open-chain diaminoethane ligand exerting antioxidant and anti-inflammatory effects on an intestinal epithelial cellular model was shown to experience metal exchanges between the manganese center and metal ions present in the biological environment (such as Zn(II)) to some degrees. As the resulting complexes (mainly Zn(II)) were shown to be inactive, improving the kinetic inertness of Mn(II) complexes based on open-chain ligands is key to improve their bioactivity in a cellular context. We report here the study of three new Mn(II) complexes resulting from Mn1 functionalization with a cyclohexyl and/or a propyl group meant to limit, respectively, (a) metal exchanges and (b) deprotonation of an amine from the 1,2-diaminoethane central scaffold. The new manganese-based SOD mimics display a higher intrinsic SOD activity and also improved kinetic inertness in metal ion exchange processes (with Zn(II), Cu(II), Ni(II), and Co(II)). They were shown to provide anti-inflammatory and antioxidant effects in cells at lower doses than Mn1 (down to 10 μM). This improvement was due to their higher inertness against metal-assisted dissociation and not to different cellular overall accumulations. Based on its higher inertness, the SOD mimic containing both the propyl and the cyclohexyl moieties was suitable for intracellular detection and quantification by mass spectrometry, quantification, that was achieved by using a 13C-labeled Co-based analog of the SOD mimics as an external heavy standard.
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5
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SOD mimics: From the tool box of the chemists to cellular studies. Curr Opin Chem Biol 2022; 67:102109. [DOI: 10.1016/j.cbpa.2021.102109] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/15/2021] [Accepted: 12/06/2021] [Indexed: 02/06/2023]
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6
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Souza THS, Andrade CG, Cabral FV, Sarmento-Neto JF, Rebouças JS, Santos BS, Ribeiro MS, Figueiredo RCBQ, Fontes A. Efficient photodynamic inactivation of Leishmania parasites mediated by lipophilic water-soluble Zn(II) porphyrin ZnTnHex-2-PyP 4. Biochim Biophys Acta Gen Subj 2021; 1865:129897. [PMID: 33811942 DOI: 10.1016/j.bbagen.2021.129897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/29/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Photodynamic inactivation (PDI) is emerging as a promising alternative for cutaneous leishmaniasis (CL). The chemotherapy currently used presents adverse effects and cases of drug resistance have been reported. ZnTnHex-2-PyP4+ is a porphyrin with a high potential as a photosensitizer (PS) for PDI, due to its photophysical properties, structural stability, and cationic/amphiphilic character that can enhance interaction with cells. This study aimed to investigate the photodynamic effects mediated by ZnTnHex-2-PyP4+ on Leishmania parasites. METHODS ZnTnHex-2-PyP4+ stability was evaluated using accelerated solvolysis conditions. The photodynamic action on promastigotes was assessed by (i) viability assays, (ii) mitochondrial membrane potential evaluation, and (iii) morphological analysis. The PS-promastigote interaction was studied. PDI on amastigotes and the cytotoxicity on macrophages were also analyzed. RESULTS ZnTnHex-2-PyP4+, under submicromolar concentration, led to immediate inactivation of more than 95% of promastigotes. PDI promoted intense mitochondrial depolarization, loss of the fusiform shape, and plasma membrane wrinkling in promastigotes. Fluorescence microscopy revealed a punctate PS labeling in the parasite cytoplasm. PDI also led to reductions of ca. 64% in the number of amastigotes/macrophage and 70% in the infection index after a single treatment session. No noteworthy toxicity was observed on mammalian cells. CONCLUSIONS ZnTnHex-2-PyP4+ is stable against demetallation and more efficient as PS than the ethyl analogue ZnTE-2-PyP4+, indicating readiness for evaluation in in vivo studies as an alternative approach to CL. GENERAL SIGNIFICANCE This report highlighted promising photodynamic effects mediated by ZnTnHex-2-PyP4+ on Leishmania parasites, opening up perspectives for applications in CL pre-clinical assays and PDI of other microorganisms.
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Affiliation(s)
- Tiago H S Souza
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil; Departamento de Microbiologia, Instituto Aggeu Magalhães- Fundação Oswaldo Cruz, Recife, PE, Brazil
| | - Camila G Andrade
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Fernanda V Cabral
- Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP), São Paulo, SP, Brazil
| | - José F Sarmento-Neto
- Departamento de Química, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Júlio S Rebouças
- Departamento de Química, Universidade Federal da Paraíba, João Pessoa, PB, Brazil
| | - Beate S Santos
- Departamento de Ciências Farmacêuticas, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Martha S Ribeiro
- Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP), São Paulo, SP, Brazil
| | - Regina C B Q Figueiredo
- Departamento de Microbiologia, Instituto Aggeu Magalhães- Fundação Oswaldo Cruz, Recife, PE, Brazil
| | - Adriana Fontes
- Departamento de Biofísica e Radiobiologia, Universidade Federal de Pernambuco, Recife, PE, Brazil.
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7
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Lovett JH, Harris HH. Application of X-ray absorption and X-ray fluorescence techniques to the study of metallodrug action. Curr Opin Chem Biol 2021; 61:135-142. [PMID: 33548877 DOI: 10.1016/j.cbpa.2020.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 12/21/2022]
Abstract
X-ray absorption spectroscopy and X-ray fluorescence microscopy are two synchrotron-based techniques frequently deployed either individually or in tandem to investigate the fates of metallodrugs and their biotransformation products in physiologically relevant sample material. These X-ray methods confer advantages over other analytical techniques in that they are nondestructive and require minimal chemical or physical manipulation of the sample before analysis, conserving both chemical and spatial information of the element(s) under investigation. In this review, we present selected examples of the use of X-ray absorption spectroscopy and X-ray fluorescence microscopy in studies of metallodrug speciation and localisation in vivo, in cell spheroids and in intact tissues and organs, and offer recent highlights in the advances of these techniques as they pertain to research on metallodrug action.
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Affiliation(s)
- James H Lovett
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
| | - Hugh H Harris
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia.
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8
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McNeill SM, Giles NM, Preston D, Jones PP, Crowley JD, Giles GI. Quadruply Stranded Metallo-Supramolecular Helicate [Pd 2(hextrz) 4] 4+ Acts as a Molecular Mimic of Cytolytic Peptides. Chem Res Toxicol 2020; 33:1822-1834. [PMID: 32347099 DOI: 10.1021/acs.chemrestox.0c00061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
[Pd2(hextrz)4]4+ is a quadruply stranded helicate, a novel bioinorganic complex designed to mimic the structure and function of proteins due to its high stability and supramolecular size. We have previously reported that [Pd2(hextrz)4]4+ exhibited cytotoxicity toward a range of cell lines, with IC50 values ranging from 3 to 10 μM. Here we demonstrate that [Pd2(hextrz)4]4+ kills cells by forming pores within the cell membrane, a mechanism of cell death analogous to the naturally occurring cytolytic peptides. [Pd2(hextrz)4]4+ induced cell death is characterized by an initial influx of Ca2+, followed by nuclear condensation and mitochondrial swelling. This is accompanied by progressive cell membrane damage that results in the formation of large blebs at the cell surface. This allows the efflux of molecules from the cell leading to loss of cell viability. These data suggest that it may be possible to design metallo-supramolecular complexes to mimic the cytotoxic action of pore forming proteins and peptides and so provide a new class of drug to treat cancer, autoimmune disorders, and microbial infection.
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Affiliation(s)
- Samantha M McNeill
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Niroshini M Giles
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Dan Preston
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Peter P Jones
- Department of Physiology and HeartOtago, University of Otago, Dunedin, New Zealand
| | - James D Crowley
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | - Gregory I Giles
- Department of Pharmacology and Toxicology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
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9
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Mathieu E, Bernard AS, Quévrain E, Zoumpoulaki M, Iriart S, Lung-Soong C, Lai B, Medjoubi K, Henry L, Nagarajan S, Poyer F, Scheitler A, Ivanović-Burmazović I, Marco S, Somogyi A, Seksik P, Delsuc N, Policar C. Intracellular location matters: rationalization of the anti-inflammatory activity of a manganese(ii) superoxide dismutase mimic complex. Chem Commun (Camb) 2020; 56:7885-7888. [DOI: 10.1039/d0cc03398g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The study of Mn-based superoxide dismutase mimic conjugated with a multimodal Re-probe in a cellular model of oxidative stress revealed that its bioactivity is associated with its accumulation at the mitochondria.
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10
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Superoxide dismutase activity enabled by a redox-active ligand rather than metal. Nat Chem 2018; 10:1207-1212. [PMID: 30275506 DOI: 10.1038/s41557-018-0137-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 08/09/2018] [Indexed: 12/23/2022]
Abstract
Reactive oxygen species are integral to many physiological processes. Although their roles are still being elucidated, they seem to be linked to a variety of disorders and may represent promising drug targets. Mimics of superoxide dismutases, which catalyse the decomposition of O2•- to H2O2 and O2, have traditionally used redox-active metals, which are toxic outside of a tightly coordinating ligand. Purely organic antioxidants have also been investigated but generally require stoichiometric, rather than catalytic, doses. Here, we show that a complex of the redox-inactive metal zinc(II) with a hexadentate ligand containing a redox-active quinol can catalytically degrade superoxide, as demonstrated by both reactivity assays and stopped-flow kinetics studies of direct reactions with O2•- and the zinc(II) complex. The observed superoxide dismutase catalysis has an important advantage over previously reported work in that it is hastened, rather than impeded, by the presence of phosphate, the concentration of which is high under physiological conditions.
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11
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Zielonka J, Sikora A, Hardy M, Ouari O, Vasquez-Vivar J, Cheng G, Lopez M, Kalyanaraman B. Mitochondria-Targeted Triphenylphosphonium-Based Compounds: Syntheses, Mechanisms of Action, and Therapeutic and Diagnostic Applications. Chem Rev 2017; 117:10043-10120. [PMID: 28654243 PMCID: PMC5611849 DOI: 10.1021/acs.chemrev.7b00042] [Citation(s) in RCA: 935] [Impact Index Per Article: 133.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mitochondria are recognized as one of the most important targets for new drug design in cancer, cardiovascular, and neurological diseases. Currently, the most effective way to deliver drugs specifically to mitochondria is by covalent linking a lipophilic cation such as an alkyltriphenylphosphonium moiety to a pharmacophore of interest. Other delocalized lipophilic cations, such as rhodamine, natural and synthetic mitochondria-targeting peptides, and nanoparticle vehicles, have also been used for mitochondrial delivery of small molecules. Depending on the approach used, and the cell and mitochondrial membrane potentials, more than 1000-fold higher mitochondrial concentration can be achieved. Mitochondrial targeting has been developed to study mitochondrial physiology and dysfunction and the interaction between mitochondria and other subcellular organelles and for treatment of a variety of diseases such as neurodegeneration and cancer. In this Review, we discuss efforts to target small-molecule compounds to mitochondria for probing mitochondria function, as diagnostic tools and potential therapeutics. We describe the physicochemical basis for mitochondrial accumulation of lipophilic cations, synthetic chemistry strategies to target compounds to mitochondria, mitochondrial probes, and sensors, and examples of mitochondrial targeting of bioactive compounds. Finally, we review published attempts to apply mitochondria-targeted agents for the treatment of cancer and neurodegenerative diseases.
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Affiliation(s)
- Jacek Zielonka
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Adam Sikora
- Institute of Applied Radiation Chemistry, Lodz University of Technology, ul. Wroblewskiego 15, 93-590 Lodz, Poland
| | - Micael Hardy
- Aix Marseille Univ, CNRS, ICR, UMR 7273, 13013 Marseille, France
| | - Olivier Ouari
- Aix Marseille Univ, CNRS, ICR, UMR 7273, 13013 Marseille, France
| | - Jeannette Vasquez-Vivar
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Gang Cheng
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
| | - Marcos Lopez
- Translational Biomedical Research Group, Biotechnology Laboratories, Cardiovascular Foundation of Colombia, Carrera 5a No. 6-33, Floridablanca, Santander, Colombia, 681003
- Graduate Program of Biomedical Sciences, Faculty of Health, Universidad del Valle, Calle 4B No. 36-00, Cali, Colombia, 760032
| | - Balaraman Kalyanaraman
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Free Radical Research Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
- Cancer Center, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, United States
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12
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Weekley CM, Kenkel I, Lippert R, Wei S, Lieb D, Cranwell T, Wedding JL, Zillmann AS, Rohr R, Filipovic MR, Ivanović-Burmazović I, Harris HH. Cellular Fates of Manganese(II) Pentaazamacrocyclic Superoxide Dismutase (SOD) Mimetics: Fluorescently Labeled MnSOD Mimetics, X-ray Absorption Spectroscopy, and X-ray Fluorescence Microscopy Studies. Inorg Chem 2017; 56:6076-6093. [DOI: 10.1021/acs.inorgchem.6b03073] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Claire M. Weekley
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Isabell Kenkel
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Rainer Lippert
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Shengwei Wei
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Dominik Lieb
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Tiffanny Cranwell
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Jason L. Wedding
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Annika S. Zillmann
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Robin Rohr
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Milos R. Filipovic
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Ivana Ivanović-Burmazović
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Hugh H. Harris
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
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13
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Mathieu E, Bernard AS, Delsuc N, Quévrain E, Gazzah G, Lai B, Chain F, Langella P, Bachelet M, Masliah J, Seksik P, Policar C. A Cell-Penetrant Manganese Superoxide Dismutase (MnSOD) Mimic Is Able To Complement MnSOD and Exerts an Antiinflammatory Effect on Cellular and Animal Models of Inflammatory Bowel Diseases. Inorg Chem 2017; 56:2545-2555. [PMID: 28198622 DOI: 10.1021/acs.inorgchem.6b02695] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inorganic complexes are increasingly used for biological and medicinal applications, and the question of the cell penetration and distribution of metallodrugs is key to understanding their biological activity. Oxidative stress is known to be involved in inflammation and in inflammatory bowel diseases for which antioxidative defenses are weakened. We report here the study of the manganese complex Mn1 mimicking superoxide dismutase (SOD), a protein involved in cell protection against oxidative stress, using an approach in inorganic cellular chemistry combining the investigation of Mn1 intracellular speciation using mass spectrometry and of its quantification and distribution using electron paramagnetic resonance and spatially resolved X-ray fluorescence with evaluation of its biological activity. More precisely, we have looked for and found the MS signature of Mn1 in cell lysates and quantified the overall manganese content. Intestinal epithelial cells activated by bacterial lipopolysaccharide were taken as a cellular model of oxidative stress and inflammation. DNBS-induced colitis in mice was used to investigate Mn1 activity in vivo. Mn1 exerts an intracellular antiinflammatory activity, remains at least partially coordinated, with diffuse distribution over the whole cell, and functionally complements mitochondrial MnSOD.
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Affiliation(s)
- Emilie Mathieu
- Département de Chimie, Ecole Normale Superieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France
| | - Anne-Sophie Bernard
- Département de Chimie, Ecole Normale Superieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France
| | - Nicolas Delsuc
- Département de Chimie, Ecole Normale Superieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France
| | - Elodie Quévrain
- Département de Chimie, Ecole Normale Superieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France
| | - Géraldine Gazzah
- Département de Chimie, Ecole Normale Superieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France
| | - Barry Lai
- X-ray Science Division, Argonne National Laboratory (ANL) , Argonne, Illinois 60439, United States
| | - Florian Chain
- Commensal and Probiotics-Host Interactions Laboratory, Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, F-78350 Jouy-en-Josas, France
| | - Philippe Langella
- Commensal and Probiotics-Host Interactions Laboratory, Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, F-78350 Jouy-en-Josas, France
| | - Maria Bachelet
- Sorbonne Universites, UPMC Univ Paris 06 - Département de Chimie, Ecole Normale Superieure, PSL Research University - CNRS, INSERM, APHP, INRA, Laboratoire des Biomolecules (LBM), 27 rue de Chaligny, 75012 Paris, France.,Commensal and Probiotics-Host Interactions Laboratory, Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, F-78350 Jouy-en-Josas, France
| | - Joelle Masliah
- Département de Chimie, Ecole Normale Superieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France.,Sorbonne Universites, UPMC Univ Paris 06 - Département de Chimie, Ecole Normale Superieure, PSL Research University - CNRS, INSERM, APHP, INRA, Laboratoire des Biomolecules (LBM), 27 rue de Chaligny, 75012 Paris, France
| | - Philippe Seksik
- Sorbonne Universites, UPMC Univ Paris 06 - Département de Chimie, Ecole Normale Superieure, PSL Research University - CNRS, INSERM, APHP, INRA, Laboratoire des Biomolecules (LBM), 27 rue de Chaligny, 75012 Paris, France.,Commensal and Probiotics-Host Interactions Laboratory, Micalis Institute, INRA, AgroParisTech, Université Paris-Saclay, F-78350 Jouy-en-Josas, France
| | - Clotilde Policar
- Département de Chimie, Ecole Normale Superieure, PSL Research University, UPMC Univ Paris 06, CNRS, Laboratoire des Biomolecules (LBM), 24 rue Lhomond, 75005 Paris, France
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14
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Yu M, Ward MB, Franke A, Ambrose SL, Whaley ZL, Bradford TM, Gorden JD, Beyers RJ, Cattley RC, Ivanović-Burmazović I, Schwartz DD, Goldsmith CR. Adding a Second Quinol to a Redox-Responsive MRI Contrast Agent Improves Its Relaxivity Response to H2O2. Inorg Chem 2017; 56:2812-2826. [DOI: 10.1021/acs.inorgchem.6b02964] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Meng Yu
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Meghan B. Ward
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Alicja Franke
- Department of Chemistry and Pharmacy, University Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Stephen L. Ambrose
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Zachary L. Whaley
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Thomas Miller Bradford
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Ronald J. Beyers
- Auburn University Magnetic Resonance Imaging Research Center, Auburn, Alabama 36849, United States
| | - Russell C. Cattley
- Department
of Pathobiology, College of Veterinary Medicine, Auburn University, Auburn, Alabama 36849, United States
| | | | - Dean D. Schwartz
- Department of Anatomy, Physiology, and
Pharmacology, College of Veterinary Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Christian R. Goldsmith
- Department of Chemistry
and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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15
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Matsuho M, Kubota R, Asayama S, Kawakami H. Lactoferrin-modified nanoparticles loaded with potent antioxidant Mn-porphyrins exhibit enhanced antioxidative activity in vitro intranasal brain delivery model. J Mater Chem B 2017; 5:1765-1771. [DOI: 10.1039/c6tb02599d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In this study, for efficient intranasal brain delivery, we have prepared lactoferrin (Lf)-modified nanoparticles loaded with an amphiphilic Mn-porphyrin derivative, MndMImP3P (MnP) (Lf-NP-MnP).
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Affiliation(s)
- Motoyuki Matsuho
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Riku Kubota
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Shoichiro Asayama
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Hiroyoshi Kawakami
- Department of Applied Chemistry
- Tokyo Metropolitan University
- Hachioji
- Japan
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16
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17
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Halder S, Bhavana P. Conformational and regioselective aspects on the photodegradation of organic pollutants by TiO2 composites of derivatives of meso-tetrathien-2-ylporphyrin. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.05.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Abstract
SIGNIFICANCE Breast cancer is a unique disease characterized by heterogeneous cell populations causing roadblocks in therapeutic medicine, owing to its complex etiology and primeval understanding of the biology behind its genesis, progression, and sustenance. Globocan statistics indicate over 1.7 million new breast cancer diagnoses in 2012, accounting for 25% of all cancer morbidities. RECENT ADVANCES Despite these dismal statistics, the introduction of molecular gene signature platforms, progressive therapeutic approaches in diagnosis, and management of breast cancer has led to more effective treatment strategies and control measures concurrent with an equally reassuring decline in the mortality rate. CRITICAL ISSUES However, an enormous body of research in this area is requisite as high mortality associated with metastatic and/or drug refractory tumors continues to present a therapeutic challenge. Despite advances in systemic chemotherapy, the median survival of patients harboring metastatic breast cancers continues to be below 2 years. FUTURE DIRECTIONS Hence, a massive effort to scrutinize and evaluate chemotherapeutics on the basis of the molecular classification of these cancers is undertaken with the objective to devise more attractive and feasible approaches to treat breast cancers and improve patients' quality of life. This review aims to summarize the current understanding of the biology of breast cancer as well as challenges faced in combating breast cancer, with special emphasis on the current battery of treatment strategies. We will also try and gain perspective from recent encounters on novel findings responsible for the progression and metastatic transformation of breast cancer cells in an endeavor to develop more targeted treatment options. Antioxid. Redox Signal. 25, 337-370.
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Affiliation(s)
- Deepika Raman
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Chuan Han Jonathan Foo
- 2 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore
| | - Marie-Veronique Clement
- 2 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore .,3 Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore
| | - Shazib Pervaiz
- 1 Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore , Singapore, Singapore .,2 NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore , Singapore, Singapore .,4 National University Cancer Institute , NUHS, Singapore, Singapore .,5 School of Biomedical Sciences, Curtin University , Perth, Australia
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19
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Kuah E, Toh S, Yee J, Ma Q, Gao Z. Enzyme Mimics: Advances and Applications. Chemistry 2016; 22:8404-30. [PMID: 27062126 DOI: 10.1002/chem.201504394] [Citation(s) in RCA: 179] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Indexed: 12/29/2022]
Abstract
Enzyme mimics or artificial enzymes are a class of catalysts that have been actively pursued for decades and have heralded much interest as potentially viable alternatives to natural enzymes. Aside from having catalytic activities similar to their natural counterparts, enzyme mimics have the desired advantages of tunable structures and catalytic efficiencies, excellent tolerance to experimental conditions, lower cost, and purely synthetic routes to their preparation. Although still in the midst of development, impressive advances have already been made. Enzyme mimics have shown immense potential in the catalysis of a wide range of chemical and biological reactions, the development of chemical and biological sensing and anti-biofouling systems, and the production of pharmaceuticals and clean fuels. This Review concerns the development of various types of enzyme mimics, namely polymeric and dendrimeric, supramolecular, nanoparticulate and proteinic enzyme mimics, with an emphasis on their synthesis, catalytic properties and technical applications. It provides an introduction to enzyme mimics and a comprehensive summary of the advances and current standings of their applications, and seeks to inspire researchers to perfect the design and synthesis of enzyme mimics and to tailor their functionality for a much wider range of applications.
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Affiliation(s)
- Evelyn Kuah
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Seraphina Toh
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Jessica Yee
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Qian Ma
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax
| | - Zhiqiang Gao
- Department of Chemistry, National University of Singapore, Singapore, 117543, Fax.
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20
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Mn Porphyrin-Based Redox-Active Therapeutics. OXIDATIVE STRESS IN APPLIED BASIC RESEARCH AND CLINICAL PRACTICE 2016. [DOI: 10.1007/978-3-319-30705-3_8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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21
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Dees A, Jux N, Tröppner O, Dürr K, Lippert R, Schmid M, Küstner B, Schlücker S, Steinrück HP, Gottfried JM, Ivanović-Burmazović I. Reactions of Superoxide with Iron Porphyrins in the Bulk and the Near-Surface Region of Ionic Liquids. Inorg Chem 2015; 54:6862-72. [PMID: 26158848 DOI: 10.1021/acs.inorgchem.5b00770] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The redox reaction of superoxide (KO2) with highly charged iron porphyrins (Fe(P4+), Fe(P8+), and Fe(P8-)) has been investigated in the ionic liquids (IL) [EMIM][Tf2N] (1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) and [EMIM][B(CN)4] (1-ethyl-3-methylimidazolium tetracyanoborate) by using time-resolved UV/vis stopped-flow, electrochemistry, cryospray mass spectrometry, EPR, and XPS measurements. Stable KO2 solutions in [EMIM][Tf2N] can be prepared up to a 15 mM concentration and are characterized by a signal in EPR spectrum at g = 2.0039 and by the 1215 cm(-1) stretching vibration in the resonance Raman spectrum. While the negatively charged iron porphyrin Fe(P8-) does not react with superoxide in IL, Fe(P4+) and Fe(P8+) do react in a two-step process (first a reduction of the Fe(III) to the Fe(II) form, followed by the binding of superoxide to Fe(II)). In the reaction with KO2, Fe(P4+) and Fe(P8+) show similar rate constants (e.g., in the case of Fe(P4+): k1 = 18.6 ± 0.5 M(-1) s(-1) for the first reaction step, and k2 = 2.8 ± 0.1 M(-1) s(-1) for the second reaction step). Notably, these rate constants are four to five orders of magnitude lower in [EMIM][Tf2N] than in conventional solvents such as DMSO. The influence of the ionic liquid is also apparent during electrochemical experiments, where the redox potentials for the corresponding Fe(III)/Fe(II) couples are much more negative in [EMIM][Tf2N] than in DMSO. This modified redox and kinetic behavior of the positively charged iron porphyrins results from their interactions with the anions of the ionic liquid, while the nucleophilicity of the superoxide is reduced by its interactions with the cations of the ionic liquid. A negligible vapor pressure of [EMIM][B(CN)4] and a sufficient enrichment of Fe(P8+) in a close proximity to the surface enabled XPS measurements as a case study for monitoring direct changes in the electronic structure of the metal centers during redox processes in solution and at liquid/solid interfaces.
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Affiliation(s)
- Anne Dees
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Norbert Jux
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Oliver Tröppner
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Katharina Dürr
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Rainer Lippert
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Martin Schmid
- ‡Fachbereich Chemie, Philipps-Universität Marburg, Marburg, Germany
| | - Bernd Küstner
- §Institute for Physical and Theoretical Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Sebastian Schlücker
- §Institute for Physical and Theoretical Chemistry, University of Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Hans-Peter Steinrück
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - J Michael Gottfried
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.,‡Fachbereich Chemie, Philipps-Universität Marburg, Marburg, Germany
| | - Ivana Ivanović-Burmazović
- †Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
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22
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Haber A, Gross Z. Catalytic antioxidant therapy by metallodrugs: lessons from metallocorroles. Chem Commun (Camb) 2015; 51:5812-27. [DOI: 10.1039/c4cc08715a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This article provides a perspective on the utility of metal-based catalytic antioxidants for disease prevention or treatment, with focus on their mode of action and its dependence (DCA) or independence (ICA) on the involvement of cofactors.
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Affiliation(s)
- Adi Haber
- Schulich Faculty of Chemistry
- Technion – Israel Institute of Technology
- Technion City
- Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry
- Technion – Israel Institute of Technology
- Technion City
- Israel
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23
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Weitzel DH, Tovmasyan A, Ashcraft KA, Rajic Z, Weitner T, Liu C, Li W, Buckley AF, Prasad MR, Young KH, Rodriguiz RM, Wetsel WC, Peters KB, Spasojevic I, Herndon JE, Batinic-Haberle I, Dewhirst MW. Radioprotection of the brain white matter by Mn(III) n-Butoxyethylpyridylporphyrin-based superoxide dismutase mimic MnTnBuOE-2-PyP5+. Mol Cancer Ther 2014; 14:70-9. [PMID: 25319393 DOI: 10.1158/1535-7163.mct-14-0343] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cranial irradiation is a standard therapy for primary and metastatic brain tumors. A major drawback of radiotherapy (RT), however, is long-term cognitive loss that affects quality of life. Radiation-induced oxidative stress in normal brain tissue is thought to contribute to cognitive decline. We evaluated the effectiveness of a novel mimic of superoxide dismutase enzyme (SOD), MnTnBuOE-2-PyP(5+)(Mn(III) meso-tetrakis(N-n-butoxyethylpyridinium-2-yl)porphyrin), to provide long-term neuroprotection following 8 Gy of whole brain irradiation. Long-term RT damage can only be assessed by brain imaging and neurocognitive studies. C57BL/6J mice were treated with MnTnBuOE-2-PyP(5+) before and after RT and evaluated three months later. At this time point, drug concentration in the brain was 25 nmol/L. Mice treated with MnTnBuOE-2-PyP(5+)/RT exhibited MRI evidence for myelin preservation in the corpus callosum compared with saline/RT treatment. Corpus callosum histology demonstrated a significant loss of axons in the saline/RT group that was rescued in the MnTnBuOE-2-PyP(5+)/RT group. In addition, the saline/RT groups exhibited deficits in motor proficiency as assessed by the rotorod test and running wheel tests. These deficits were ameliorated in groups treated with MnTnBuOE-2-PyP(5+)/RT. Our data demonstrate that MnTnBuOE-2-PyP(5+) is neuroprotective for oxidative stress damage caused by radiation exposure. In addition, glioblastoma cells were not protected by MnTnBuOE-2-PyP(5+) combination with radiation in vitro. Likewise, the combination of MnTnBuOE-2-PyP(5+) with radiation inhibited tumor growth more than RT alone in flank tumors. In summary, MnTnBuOE-2-PyP(5+) has dual activity as a neuroprotector and a tumor radiosensitizer. Thus, it is an attractive candidate for adjuvant therapy with RT in future studies with patients with brain cancer.
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Affiliation(s)
- Douglas H Weitzel
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Kathleen A Ashcraft
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Zrinka Rajic
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Tin Weitner
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Chunlei Liu
- Brain Imaging and Analysis Center, Duke University Medical Center, Durham, North Carolina
| | - Wei Li
- Brain Imaging and Analysis Center, Duke University Medical Center, Durham, North Carolina
| | - Anne F Buckley
- Department of Pathology, Duke University Medical Center, Durham, North Carolina. Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina. Animal Pathology Core, Duke University Medical Center, Durham, North Carolina
| | - Mark R Prasad
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Kenneth H Young
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Ramona M Rodriguiz
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina
| | - William C Wetsel
- Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina. Department of Neurobiology and Cell Biology, Duke University Medical Center, Durham, North Carolina
| | - Katherine B Peters
- Medicine and Duke Cancer Institute, Duke University Medical Center, Durham, North Carolina
| | - Ivan Spasojevic
- PK/PD BioAnalytical DCI Shared Resource, Duke University Medical Center, Durham, North Carolina
| | - James E Herndon
- Biostatistics and Bioinformatics, Duke University Medical Center, Durham, North Carolina
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina
| | - Mark W Dewhirst
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina. Preston Robert Tisch Brain Tumor Center, Duke University Medical Center, Durham, North Carolina.
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24
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Yu M, Ambrose SL, Whaley ZL, Fan S, Gorden JD, Beyers RJ, Schwartz DD, Goldsmith CR. A Mononuclear Manganese(II) Complex Demonstrates a Strategy To Simultaneously Image and Treat Oxidative Stress. J Am Chem Soc 2014; 136:12836-9. [DOI: 10.1021/ja507034d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Meng Yu
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Stephen L. Ambrose
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Zachary L. Whaley
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Sanjun Fan
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Ronald J. Beyers
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Dean D. Schwartz
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
| | - Christian R. Goldsmith
- Department of Chemistry and Biochemistry, ‡Magnetic Resonance Imaging Research
Center, and §Department of Anatomy, Physiology, and Pharmacology, College of Veterinary
Medicine, Auburn University, Auburn, Alabama 36849, United States
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25
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Batinic-Haberle I, Tovmasyan A, Roberts ERH, Vujaskovic Z, Leong KW, Spasojevic I. SOD therapeutics: latest insights into their structure-activity relationships and impact on the cellular redox-based signaling pathways. Antioxid Redox Signal 2014; 20:2372-415. [PMID: 23875805 PMCID: PMC4005498 DOI: 10.1089/ars.2012.5147] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Revised: 06/30/2013] [Accepted: 07/22/2013] [Indexed: 01/23/2023]
Abstract
SIGNIFICANCE Superoxide dismutase (SOD) enzymes are indispensable and ubiquitous antioxidant defenses maintaining the steady-state levels of O2·(-); no wonder, thus, that their mimics are remarkably efficacious in essentially any animal model of oxidative stress injuries thus far explored. RECENT ADVANCES Structure-activity relationship (half-wave reduction potential [E1/2] versus log kcat), originally reported for Mn porphyrins (MnPs), is valid for any other class of SOD mimics, as it is dominated by the superoxide reduction and oxidation potential. The biocompatible E1/2 of ∼+300 mV versus normal hydrogen electrode (NHE) allows powerful SOD mimics as mild oxidants and antioxidants (alike O2·(-)) to readily traffic electrons among reactive species and signaling proteins, serving as fine mediators of redox-based signaling pathways. Based on similar thermodynamics, both SOD enzymes and their mimics undergo similar reactions, however, due to vastly different sterics, with different rate constants. CRITICAL ISSUES Although log kcat(O2·(-)) is a good measure of therapeutic potential of SOD mimics, discussions of their in vivo mechanisms of actions remain mostly of speculative character. Most recently, the therapeutic and mechanistic relevance of oxidation of ascorbate and glutathionylation and oxidation of protein thiols by MnP-based SOD mimics and subsequent inactivation of nuclear factor κB has been substantiated in rescuing normal and killing cancer cells. Interaction of MnPs with thiols seems to be, at least in part, involved in up-regulation of endogenous antioxidative defenses, leading to the healing of diseased cells. FUTURE DIRECTIONS Mechanistic explorations of single and combined therapeutic strategies, along with studies of bioavailability and translational aspects, will comprise future work in optimizing redox-active drugs.
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Affiliation(s)
- Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Emily R. H. Roberts
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Zeljko Vujaskovic
- Department of Radiation Oncology, Duke University Medical School, Durham, North Carolina
| | - Kam W. Leong
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
- King Abdulaziz University, Jeddah, Saudi Arabia Kingdom
| | - Ivan Spasojevic
- Department of Medicine, Duke University Medical School, Durham, North Carolina
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