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Vinck R, Dömötör O, Karges J, Jakubaszek M, Seguin J, Tharaud M, Guérineau V, Cariou K, Mignet N, Enyedy ÉA, Gasser G. In Situ Bioconjugation of a Maleimide-Functionalized Ruthenium-Based Photosensitizer to Albumin for Photodynamic Therapy. Inorg Chem 2023; 62:15510-15526. [PMID: 37708255 DOI: 10.1021/acs.inorgchem.3c01984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Maleimide-containing prodrugs can quickly and selectively react with circulating serum albumin following their injection in the bloodstream. The drug-albumin complex then benefits from longer blood circulation times and better tumor accumulation. Herein, we have applied this strategy to a previously reported highly phototoxic Ru polypyridyl complex-based photosensitizer to increase its accumulation at the tumor, reduce off-target cytotoxicity, and therefore improve its pharmacological profile. Specifically, two complexes were synthesized bearing a maleimide group: one complex with the maleimide directly incorporated into the bipyridyl ligand, and the other has a hydrophilic linker between the ligand and the maleimide group. Their interaction with albumin was studied in-depth, revealing their ability to efficiently bind both covalently and noncovalently to the plasma protein. A crucial finding is that the maleimide-functionalized complexes exhibited significantly lower cytotoxicity in noncancerous cells under dark conditions compared to the nonfunctionalized complex, which is a highly desirable property for a photosensitizer. The binding to albumin also led to a decrease in the phototoxicity of the Ru bioconjugates in comparison to the nonfunctionalized complex, probably due to a decreased cellular uptake. Unfortunately, this decrease in phototoxicity was not compensated by a dramatic increase in tumor accumulation, as was demonstrated in a tumor-bearing mouse model using inductively coupled plasma mass spectrometry (ICP-MS) studies. Consequently, this study provides valuable insight into the future design of in situ albumin-binding complexes for photodynamic therapy in order to maximize their effectiveness and realize their full potential.
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Affiliation(s)
- Robin Vinck
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Orsolya Dömötör
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7. H-6720 Szeged, Hungary
| | - Johannes Karges
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Marta Jakubaszek
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Johanne Seguin
- Université Paris Cité, UTCBS, INSERM, CNRS, 75006 Paris, France
| | - Mickaël Tharaud
- Biogéochimie à l'Anthropocène des Eléments et Contaminants Emergents, Institut de Physique du Globe de Paris, 75005 Paris, France
| | - Vincent Guérineau
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay, Avenue de la Terrasse, 91198 Gif-sur-Yvette Cedex, France
| | - Kevin Cariou
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
| | - Nathalie Mignet
- Université Paris Cité, UTCBS, INSERM, CNRS, 75006 Paris, France
| | - Éva A Enyedy
- MTA-SZTE Lendület Functional Metal Complexes Research Group, Department of Molecular and Analytical Chemistry, University of Szeged, Dóm tér 7. H-6720 Szeged, Hungary
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, F-75005 Paris, France
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Saha M, Singha S, Ghosh D, Kumar S, Karmakar P, Das S. A CobaltII/CobaltIII complex of alizarin that was analyzed from the stand point of binding with DNA, for ROS generation and anticancer drug prospecting was identified as an analogue of anthracyclines. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Reactive Oxygen Species Production Is Responsible for Antineoplastic Activity of Osmium, Ruthenium, Iridium and Rhodium Half-Sandwich Type Complexes with Bidentate Glycosyl Heterocyclic Ligands in Various Cancer Cell Models. Int J Mol Sci 2022; 23:ijms23020813. [PMID: 35054999 PMCID: PMC8776094 DOI: 10.3390/ijms23020813] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/07/2022] [Accepted: 01/08/2022] [Indexed: 02/04/2023] Open
Abstract
Platinum complexes are used in chemotherapy, primarily as antineoplastic agents. In this study, we assessed the cytotoxic and cytostatic properties of a set of osmium(II), ruthenium(II), iridium(III) and rhodium(III) half-sandwich-type complexes with bidentate monosaccharide ligands. We identified 5 compounds with moderate to negligible acute cytotoxicity but with potent long-term cytostatic activity. These structure-activity relationship studies revealed that: (1) osmium(II) p-cymene complexes were active in all models, while rhodium(III) and iridium(III) Cp* complexes proved largely inactive; (2) the biological effect was influenced by the nature of the central azole ring of the ligands—1,2,3-triazole was the most effective, followed by 1,3,4-oxadiazole, while the isomeric 1,2,4-oxadiazole abolished the cytostatic activity; (3) we found a correlation between the hydrophobic character of the complexes and their cytostatic activity: compounds with O-benzoyl protective groups on the carbohydrate moiety were active, compared to O-deprotected ones. The best compound, an osmium(II) complex, had an IC50 value of 0.70 µM. Furthermore, the steepness of the inhibitory curve of the active complexes suggested cooperative binding; cooperative molecules were better inhibitors than non-cooperative ones. The cytostatic activity of the active complexes was abolished by a lipid-soluble antioxidant, vitamin E, suggesting that oxidative stress plays a major role in the biological activity of the complexes. The complexes were active on ovarian cancer, pancreatic adenocarcinoma, osteosarcoma and Hodgkin’s lymphoma cells, but were inactive on primary, non-transformed human fibroblasts, indicating their applicability as potential anticancer agents.
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do Nascimento JS, de Sousa AP, Gondim ACS, Sousa EHS, Teixeira EH, do Nascimento Neto LG, Bezerra BP, Ayala AP, Batista AA, Vasconcelos IF, Oliveira FGS, Holanda AKM. A binuclear Fe( iii)/quinizarin complex as a structural model for anthracycline drugs binding to iron. NEW J CHEM 2022. [DOI: 10.1039/d1nj04087a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
Abstract
Quinizarin, an anthracyclin-like compound, was used to prepare a binuclear complex, [(Fe(cyclam))2Qz]Cl(PF6)3, which showed damage to DNA with glutathione. This mimic of anthracyclin drugs might explain undesired side effects of these compounds.
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Affiliation(s)
- Juliana S. do Nascimento
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza, CE, Brazil
| | - Aurideia P. de Sousa
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza, CE, Brazil
| | - Ana C. S. Gondim
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza, CE, Brazil
| | - Eduardo H. S. Sousa
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza, CE, Brazil
| | - Edson H. Teixeira
- Laboratório Integrado de Biomolêculas, Departamento de Patologia e Medicina Legal, Universidade Federal do Ceará, CEP 60430-270, Fortaleza, CE, Brazil
| | - Luiz Gonzaga do Nascimento Neto
- Departamento do Núcleo Comum, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Campus Limoeiro do Norte s/n, 62930-000, Limoeiro do Norte, CE, Brazil
| | | | | | - Alzir A. Batista
- Departamento de Química, Universidade Federal de São Carlos, PO Box 676, 13565-905 São Carlos, SP, Brazil
| | - Igor F. Vasconcelos
- Departamento de Engenharia Metalúrgica e de Materiais, Centro de Tecnologia, Universidade Federal do Ceará, Campus do Pici, Bloco 729, 60440-900, Fortaleza, CE, Brazil
| | - Francisco G. S. Oliveira
- Departamento de Engenharia Metalúrgica e de Materiais, Centro de Tecnologia, Universidade Federal do Ceará, Campus do Pici, Bloco 729, 60440-900, Fortaleza, CE, Brazil
| | - Alda K. M. Holanda
- Laboratório de Bioinorgânica, Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, PO Box 12200, Campus do Pici s/n, 60440-900, Fortaleza, CE, Brazil
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Kacsir I, Sipos A, Ujlaki G, Buglyó P, Somsák L, Bai P, Bokor É. Ruthenium Half-Sandwich Type Complexes with Bidentate Monosaccharide Ligands Show Antineoplastic Activity in Ovarian Cancer Cell Models through Reactive Oxygen Species Production. Int J Mol Sci 2021; 22:ijms221910454. [PMID: 34638791 PMCID: PMC8508960 DOI: 10.3390/ijms221910454] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 09/17/2021] [Accepted: 09/23/2021] [Indexed: 12/16/2022] Open
Abstract
Ruthenium complexes are developed as substitutes for platinum complexes to be used in the chemotherapy of hematological and gynecological malignancies, such as ovarian cancer. We synthesized and screened 14 ruthenium half-sandwich complexes with bidentate monosaccharide ligands in ovarian cancer cell models. Four complexes were cytostatic, but not cytotoxic on A2780 and ID8 cells. The IC50 values were in the low micromolar range (the best being 0.87 µM) and were similar to or lower than those of the clinically available platinum complexes. The active complexes were cytostatic in cell models of glioblastoma, breast cancer, and pancreatic adenocarcinoma, while they were not cytostatic on non-transformed human skin fibroblasts. The bioactive ruthenium complexes showed cooperative binding to yet unidentified cellular target(s), and their activity was dependent on reactive oxygen species production. Large hydrophobic protective groups on the hydroxyl groups of the sugar moiety were needed for biological activity. The cytostatic activity of the ruthenium complexes was dependent on reactive species production. Rucaparib, a PARP inhibitor, potentiated the effects of ruthenium complexes.
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Affiliation(s)
- István Kacsir
- Department of Organic Chemistry, University of Debrecen, P.O. Box 400, H-4002 Debrecen, Hungary; (I.K.); (L.S.)
- Doctoral School of Chemistry, University of Debrecen, P.O. Box 400, H-4002 Debrecen, Hungary
| | - Adrienn Sipos
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.S.); (G.U.)
| | - Gyula Ujlaki
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.S.); (G.U.)
| | - Péter Buglyó
- Department of Inorganic & Analytical Chemistry, Faculty of Sciences and Technology, University of Debrecen, H-4032 Debrecen, Hungary;
| | - László Somsák
- Department of Organic Chemistry, University of Debrecen, P.O. Box 400, H-4002 Debrecen, Hungary; (I.K.); (L.S.)
| | - Péter Bai
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (A.S.); (G.U.)
- NKFIH-DE Lendület Laboratory of Cellular Metabolism, H-4032 Debrecen, Hungary
- Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary
- Correspondence: (P.B.); (É.B.)
| | - Éva Bokor
- Department of Organic Chemistry, University of Debrecen, P.O. Box 400, H-4002 Debrecen, Hungary; (I.K.); (L.S.)
- Correspondence: (P.B.); (É.B.)
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Kozsup M, Zhou X, Farkas E, Bényei AC, Bonnet S, Patonay T, Kónya K, Buglyó P. Synthesis, characterization and cytotoxicity studies of Co(III)-flavonolato complexes. J Inorg Biochem 2021; 217:111382. [PMID: 33588278 DOI: 10.1016/j.jinorgbio.2021.111382] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 11/29/2022]
Abstract
Hypoxia activated Co(III) complexes as prodrugs may provide with a selective delivery of cytotoxic or antibacterial compounds. Whithin this field sixteen novel Co(III) ternary complexes with the general formula [Co(4N)(flav)](ClO4)2, where 4N = tris(2-aminoethyl)amine (tren) or tris(2-pyridylmethyl)amine (tpa) and flav = deprotonated form of differently substituted flavonols have been synthesized, characterized, and their cytotoxicity assayed under both normoxic and hypoxic conditions. Molecular structures of two free flavonols and seven complexes are also reported. In all the complexes the bioligands exhibited the expected (O,O) coordination mode and the complexes showed a slightly distorted octahedral geometry. Cyclic voltammetric studies revealed that both the substituents of the flavonoles and the type of 4N donor ligands had an impact on the reduction potential of the complex. The ones containing tren demonstrated significantly higher stability than the tpa analogues, making these former compounds promising candidates for the development of hypoxia-activated prodrug complexes. Tpa complexes showed higher activity against both selected human cancer cell lines (A549, A431) than their free ligand flavonols, indicating that the anticancer activity of the bioligand can be enhanced upon complexation. However, slight hypoxia-selectivity was found only for a tren complex (11) with moderate cytotoxicity.
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Affiliation(s)
- Máté Kozsup
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - XueQuan Zhou
- Leiden Institute of Chemistry, Universiteit Leiden, Einsteinweg 55, 2333 CC Leiden, the Netherlands
| | - Etelka Farkas
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Cs Bényei
- Department of Physical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Universiteit Leiden, Einsteinweg 55, 2333 CC Leiden, the Netherlands
| | - Tamás Patonay
- Department of Organic Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Krisztina Kónya
- Department of Organic Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Péter Buglyó
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary.
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Nagy S, Tóth E, Kacsir I, Makai A, Bényei AC, Buglyó P. Effect of the replacement of tripodal 4N donors by two 2N chelators on the redox and cytotoxic activity of maltolato and deferipronato containing Co(III) complexes. J Inorg Biochem 2021; 220:111372. [PMID: 33962134 DOI: 10.1016/j.jinorgbio.2021.111372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 11/17/2022]
Abstract
Fourteen novel CoIII ternary complexes with the general formula [Co(4N)(2O)]X2 or [Co(2N)2(2O)]X2 where 4N = tris(2-aminoethyl)amine (tren) or tris(2-pyridylmethyl)amine (tpa); 2N = 1,10-phenantroline (phen), 2,2'-bipyridine (bipy), 1,2-diaminoethane (en) or 2-(aminomethyl)pyridine (ampy) and 2O = 1,2-dimethyl-3-hydroxy-4(1H)-pyridinone (dhpH), 3-hydroxy-2-methyl-4-pyrone (maltH) or 2-ethyl-3-hydroxy-4H-pyran-4-one (etmaltH) were synthesized, characterized and their redox features explored. Molecular structure of some selected [Co(2N)2(2O)](ClO4)2 (2N = phen, bipy, en; 2O = dhp, malt) or [Co(4N)(2O)](ClO4)2 (4N = tpa; 2O = etmalt) type complexes were assessed by X-ray diffraction and showed the expected octahedral geometry. Replacement of the 4N donor ligands by two 2N donor ligands resulted in the decrease of the cathodic peak potential of the complexes indicating easier reduction and allowing therefore the tailoring of the redox properties of the complexes. Screening of selected compounds against a human derived cancer cell line, HeLa, showed that, unlike the [Co(4N)(2O)]X2 derivatives, the complexes containing 2N = bipy or phen ligands have better anticancer activity than cisplatin or carboplatin.
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Affiliation(s)
- Sándor Nagy
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - István Kacsir
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Makai
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Csaba Bényei
- Department of Physical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Péter Buglyó
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary.
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Verebová V, Beneš J, Staničová J. Biophysical Characterization and Anticancer Activities of Photosensitive Phytoanthraquinones Represented by Hypericin and Its Model Compounds. Molecules 2020; 25:E5666. [PMID: 33271809 PMCID: PMC7731333 DOI: 10.3390/molecules25235666] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 12/17/2022] Open
Abstract
Photosensitive compounds found in herbs have been reported in recent years as having a variety of interesting medicinal and biological activities. In this review, we focus on photosensitizers such as hypericin and its model compounds emodin, quinizarin, and danthron, which have antiviral, antifungal, antineoplastic, and antitumor effects. They can be utilized as potential agents in photodynamic therapy, especially in photodynamic therapy (PDT) for cancer. We aimed to give a comprehensive summary of the physical and chemical properties of these interesting molecules, emphasizing their mechanism of action in relation to their different interactions with biomacromolecules, specifically with DNA.
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Affiliation(s)
- Valéria Verebová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine & Pharmacy, Komenského 73, 041 81 Košice, Slovakia;
| | - Jiří Beneš
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Kateřinská 1, 121 08 Prague, Czech Republic;
| | - Jana Staničová
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine & Pharmacy, Komenského 73, 041 81 Košice, Slovakia;
- Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University, Kateřinská 1, 121 08 Prague, Czech Republic;
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Nagy I, Ferenczik G, Bíró L, Farkas E, Cs. Bényei A, Buglyó P. Metal complexation of deferasirox derivatives: A solid state and equilibrium study. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hornok V, Juhász Á, Paragi G, Kovács AN, Csapó E. Thermodynamic and kinetic insights into the interaction of kynurenic acid with human serum albumin: Spectroscopic and calorimetric approaches. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112869] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Farkas E. International Symposium on Metal Complexes 2019 (ISMEC 2019) hosted by the University Debrecen, Hungary. J Inorg Biochem 2020; 206:111045. [DOI: 10.1016/j.jinorgbio.2020.111045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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