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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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2
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Damke GMZF, Damke E, de Souza Bonfim-Mendonça P, Ratti BA, de Freitas Meirelles LE, da Silva VRS, Gonçalves RS, César GB, de Oliveira Silva S, Caetano W, Hioka N, Souza RP, Consolaro MEL. Selective photodynamic effects on cervical cancer cells provided by P123 Pluronic®-based nanoparticles modulating hypericin delivery. Life Sci 2020; 255:117858. [PMID: 32497635 DOI: 10.1016/j.lfs.2020.117858] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 12/24/2022]
Abstract
At present, cervical cancer is the fourth leading cause of cancer among women worldwide with no effective treatment options. In this study we aimed to evaluate the efficacy of hypericin (HYP) encapsulated on Pluronic® P123 (HYP/P123) photodynamic therapy (PDT) in a comprehensive panel of human cervical cancer-derived cell lines, including HeLa (HPV 18-positive), SiHa (HPV 16-positive), CaSki (HPV 16 and 18-positive), and C33A (HPV-negative), compared to a nontumorigenic human epithelial cell line (HaCaT). Were investigated: (i) cell cytotoxicity and phototoxicity, cellular uptake and subcellular distribution; (ii) cell death pathway and cellular oxidative stress; (iii) migration and invasion. Our results showed that HYP/P123 micelles had effective and selective time- and dose-dependent phototoxic effects on cervical cancer cells but not in HaCaT. Moreover, HYP/P123 micelles accumulated in endoplasmic reticulum, mitochondria and lysosomes, resulting in photodynamic cell death mainly by necrosis. HYP/P123 induced cellular oxidative stress mainly via type II mechanism of PDT and inhibited cancer cell migration and invasion mainly via MMP-2 inhibition. Taken together, our results indicate a potentially useful role of HYP/P123 micelles as a platform for HYP delivery to more specifically and effectively treat cervical cancers through PDT, suggesting they are worthy for in vivo preclinical evaluations.
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Affiliation(s)
| | - Edilson Damke
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Patrícia de Souza Bonfim-Mendonça
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Bianca Altrão Ratti
- Department of Basic Health Sciences, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Lyvia Eloiza de Freitas Meirelles
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Vânia Ramos Sela da Silva
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Renato Sonchini Gonçalves
- Department of Chemistry, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Gabriel Batista César
- Department of Chemistry, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Sueli de Oliveira Silva
- Department of Basic Health Sciences, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Wilker Caetano
- Department of Chemistry, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Noboru Hioka
- Department of Chemistry, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Raquel Pantarotto Souza
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil
| | - Marcia Edilaine Lopes Consolaro
- Department of Clinical Analysis and Biomedicine, Universidade Estadual de Maringá, Av. Colombo, 5790, 87025-210 Maringá, Paraná, Brazil.
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3
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Keša P, Antalík M. Determination of p K a constants of hypericin in aqueous solution of the anti-allergic hydrotropic drug Cromolyn disodium salt. Chem Phys Lett 2017. [DOI: 10.1016/j.cplett.2017.03.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Verebova V, Belej D, Joniova J, Jurasekova Z, Miskovsky P, Kozar T, Horvath D, Stanicova J, Huntosova V. Deeper insights into the drug defense of glioma cells against hydrophobic molecules. Int J Pharm 2016; 503:56-67. [PMID: 26940808 DOI: 10.1016/j.ijpharm.2016.02.042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 02/24/2016] [Accepted: 02/26/2016] [Indexed: 12/28/2022]
Abstract
By means of fluorescence microscopy the intracellular distribution of fluorescent drugs with different hydrophobicity (quinizarin, emodin and hypericin) was studied. Selective photoactivation of these drugs in precisely defined position (nuclear envelope) allowed moderately hydrophobic emodin enter the nucleus. Highly hydrophobic hypericin was predominantly kept in the membranes with no fluorescence observed in the nucleus. The redistribution of quinizarin, emodin and hypericin between lipids, proteins and DNA was studied in solutions and cells. Based on these results was proposed theoretical model of hydrophobic drugs' nuclear internalization after photo-activation. Molecular docking models showed that hypericin has the strongest affinity to P-glycoprotein involved in the cell detoxification. Presence of 10 μM quinizarin, emodin or hypericin increased P-glycoprotein function in U87 MG cells. Moreover, emodin pretreatment allowed quinizarin nuclear internalization without photo-activation, which was not the case for hypericin. The synergy of such pretreatment and photo-activation should lessen the drug doses with simultaneous increase of drug efficacy triggering cell apoptosis/necrosis.
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Affiliation(s)
- Valeria Verebova
- Institute of Biophysics, University of Veterinary Medicine and Pharmacy, Komenskeho 73, 041 81 Kosice, Slovakia.
| | - Dominik Belej
- Department of Biophysics, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia.
| | - Jaroslava Joniova
- Department of Biophysics, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia.
| | - Zuzana Jurasekova
- Department of Biophysics, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia; Center for Interdisciplinary Biosciences, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia.
| | - Pavol Miskovsky
- Department of Biophysics, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia; Center for Interdisciplinary Biosciences, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia.
| | - Tibor Kozar
- Center for Interdisciplinary Biosciences, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia.
| | - Denis Horvath
- Center for Interdisciplinary Biosciences, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia.
| | - Jana Stanicova
- Institute of Biophysics, University of Veterinary Medicine and Pharmacy, Komenskeho 73, 041 81 Kosice, Slovakia; Institute of Biophysics and Informatics, First Faculty of Medicine, Charles University in Prague, Salmovska 1, 120 00 Prague 2, Czech Republic.
| | - Veronika Huntosova
- Center for Interdisciplinary Biosciences, Faculty of Science, P. J. Safarik University in Kosice, Jesenna 5, 041 54 Kosice, Slovakia.
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5
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Shoaf AL, Bayse CA. TD-DFT and structural investigation of natural photosensitive phenanthroperylene quinone derivatives. NEW J CHEM 2016. [DOI: 10.1039/c5nj02448j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Structural modification of the phenanthroperylene quinone core affects the electronic structure of a series of natural product photosensitizers.
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Affiliation(s)
- Ashley L. Shoaf
- Deparment of Chemistry and Biochemistry
- Old Dominion University
- Norfolk
- USA
| | - Craig A. Bayse
- Deparment of Chemistry and Biochemistry
- Old Dominion University
- Norfolk
- USA
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6
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Souza MI, Silva ER, Jaques YM, Ferreira FF, Fileti EE, Alves WA. The role of water and structure on the generation of reactive oxygen species in peptide/hypericin complexes. J Pept Sci 2014; 20:554-62. [DOI: 10.1002/psc.2651] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Márcia I. Souza
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-170 Santo André SP Brazil
| | - Emerson R. Silva
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-170 Santo André SP Brazil
| | - Ygor M. Jaques
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-170 Santo André SP Brazil
| | - Fabio F. Ferreira
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-170 Santo André SP Brazil
| | - Eudes E. Fileti
- Instituto de Ciência e Tecnologia; Universidade Federal de São Paulo; 12231-280 São José dos Campos SP Brazil
| | - Wendel A. Alves
- Centro de Ciências Naturais e Humanas; Universidade Federal do ABC; 09210-170 Santo André SP Brazil
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7
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Souza MI, Jaques YM, de Andrade GP, Ribeiro AO, da Silva ER, Fileti EE, Ávilla ÉDS, Pinheiro MVB, Krambrock K, Alves WA. Structural and Photophysical Properties of Peptide Micro/Nanotubes Functionalized with Hypericin. J Phys Chem B 2013; 117:2605-14. [DOI: 10.1021/jp3113655] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Márcia I. Souza
- Centro de Ciências Naturais
e Humanas, Universidade Federal do ABC,
09210-170, Santo André, SP, Brazil
| | - Ygor M. Jaques
- Centro de Ciências Naturais
e Humanas, Universidade Federal do ABC,
09210-170, Santo André, SP, Brazil
| | - Gislaine P. de Andrade
- Centro de Ciências Naturais
e Humanas, Universidade Federal do ABC,
09210-170, Santo André, SP, Brazil
| | - Anderson O. Ribeiro
- Centro de Ciências Naturais
e Humanas, Universidade Federal do ABC,
09210-170, Santo André, SP, Brazil
| | - Emerson R. da Silva
- Centro de Ciências Naturais
e Humanas, Universidade Federal do ABC,
09210-170, Santo André, SP, Brazil
| | - Eudes E. Fileti
- Instituto de Ciência
e Tecnologia, Universidade Federal de São Paulo, 12231-280, São José dos Campos, SP, Brazil
| | - Érick de Souza Ávilla
- Departamento de Física,
ICEx, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, MG, Brazil
| | - Maurício V. B. Pinheiro
- Departamento de Física,
ICEx, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, MG, Brazil
| | - Klaus Krambrock
- Departamento de Física,
ICEx, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, MG, Brazil
| | - Wendel A. Alves
- Centro de Ciências Naturais
e Humanas, Universidade Federal do ABC,
09210-170, Santo André, SP, Brazil
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8
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Lin ZH, Chen IC, Chang HT. Detection of human serum albumin through surface-enhanced Raman scattering using gold “pearl necklace” nanomaterials as substrates. Chem Commun (Camb) 2011; 47:7116-8. [DOI: 10.1039/c1cc11818h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Eriksson ESE, Santos DJVAD, Guedes RC, Eriksson LA. Properties and Permeability of Hypericin and Brominated Hypericin in Lipid Membranes. J Chem Theory Comput 2009; 5:3139-49. [DOI: 10.1021/ct9002702] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Emma S. E. Eriksson
- Örebro Life Science Center, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Örebro, Sweden, Modelling and Simulation Research Center, Örebro University, Örebro, Sweden, Department of Pharmacy, University of Lisbon, 1649-019 Lisbon, Portugal, and School of Chemistry, National University of Ireland, University Road, Galway, Ireland
| | - Daniel J. V. A. dos Santos
- Örebro Life Science Center, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Örebro, Sweden, Modelling and Simulation Research Center, Örebro University, Örebro, Sweden, Department of Pharmacy, University of Lisbon, 1649-019 Lisbon, Portugal, and School of Chemistry, National University of Ireland, University Road, Galway, Ireland
| | - Rita C. Guedes
- Örebro Life Science Center, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Örebro, Sweden, Modelling and Simulation Research Center, Örebro University, Örebro, Sweden, Department of Pharmacy, University of Lisbon, 1649-019 Lisbon, Portugal, and School of Chemistry, National University of Ireland, University Road, Galway, Ireland
| | - Leif A. Eriksson
- Örebro Life Science Center, School of Science and Technology, Örebro University, Fakultetsgatan 1, 70182 Örebro, Sweden, Modelling and Simulation Research Center, Örebro University, Örebro, Sweden, Department of Pharmacy, University of Lisbon, 1649-019 Lisbon, Portugal, and School of Chemistry, National University of Ireland, University Road, Galway, Ireland
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10
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Photodynamic effect of hypericin on the conformation and catalytic activity of hemoglobin. Int J Mol Sci 2008; 9:145-153. [PMID: 19325739 PMCID: PMC2635659 DOI: 10.3390/ijms9020145] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2007] [Accepted: 01/30/2008] [Indexed: 12/03/2022] Open
Abstract
Hypericin, extracted from H. perforatum, can induce the generation of reactive oxygen species by visible light irradiation, which may consequently induce the conformational change of hemoglobin. We have not only employed UV-vis spectroscopy to observe the changes of UV-vis spectra of the protein, which reveals the conformational changes of the protein, but also employed electrochemical method to obtain its enhanced peroxidase activity. The photodynamic effect of hypericin on the conformation and catalytic activity of the protein has also been proven to be strongly dependent on the irradiation time, the hypericin concentration and the presence of oxygen. This work is beneficial not only to the fabrication of more sensitive hydrogen peroxide biosensor, but also to the guidance of the usage of this medicinal herb molecule, since the conformational change of the protein and the enhanced peroxidase can be easily obtained only by visible light irradiation on hypericin, the process of which is so common to happen.
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11
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Hering K, Cialla D, Ackermann K, Dörfer T, Möller R, Schneidewind H, Mattheis R, Fritzsche W, Rösch P, Popp J. SERS: a versatile tool in chemical and biochemical diagnostics. Anal Bioanal Chem 2007; 390:113-24. [DOI: 10.1007/s00216-007-1667-3] [Citation(s) in RCA: 406] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Revised: 09/28/2007] [Accepted: 10/01/2007] [Indexed: 11/27/2022]
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12
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Agostinis P, Vantieghem A, Merlevede W, de Witte PAM. Hypericin in cancer treatment: more light on the way. Int J Biochem Cell Biol 2002; 34:221-41. [PMID: 11849990 DOI: 10.1016/s1357-2725(01)00126-1] [Citation(s) in RCA: 278] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photodynamic therapy (PDT) has been described as a promising new modality for the treatment of cancer. PDT involves the combination of a photosensitizing agent (photosensitizer), which is preferentially taken up and retained by tumor cells, and visible light of a wavelength matching the absorption spectrum of the drug. Each of these factors is harmless by itself, but when combined they ultimately produce, in the presence of oxygen, cytotoxic products that cause irreversible cellular damage and tumor destruction. Hypericin, a powerful naturally occurring photosensitizer, is found in Hypericum perforatum plants, commonly known as St. John's wort. In recent years increased interest in hypericin as a potential clinical anticancer agent has arisen since several studies established its powerful in vivo and in vitro antineoplastic activity upon irradiation. Investigations of the molecular mechanisms underlying hypericin photocytotoxicity in cancer cells have revealed that this photosensitizer can induce both apoptosis and necrosis in a concentration and light dose-dependent fashion. Moreover, PDT with hypericin results in the activation of multiple pathways that can either promote or counteract the cell death program. This review focuses on the more recent advances in the use of hypericin as a photodynamic agent and discusses the current knowledge on the signaling pathways underlying its photocytotoxic action.
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Affiliation(s)
- Patrizia Agostinis
- Division of Biochemistry, Faculty of Medicine, KULeuven, Leuven, Belgium
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13
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Murza A, Sánchez-Cortés S, García-Ramos JV. Surface-enhanced Raman and steady fluorescence study of interaction between antitumoral drug 9-aminoacridine and trypsin-like protease related to metastasis processes, guanidinobenzoatase. Biopolymers 2001; 62:85-94. [PMID: 11288057 DOI: 10.1002/bip.1001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Fluorescence spectroscopy and surface-enhanced Raman spectroscopy (SERS) were applied to study the interaction of the antitumoral drug 9-aminoacridine (9AA) with a trypsin-like protease guanidinobenzoatase (GB) extracted from a mouse Erlich tumor. As a consequence of this interaction, a strong 9AA exciplex emission was detected in the emission fluorescence spectra at certain drug and enzyme concentrations. A SERS study was accomplished on silver colloids at several excitation wavelengths in order to obtain more information about the interaction mechanism. The results derived from Raman spectroscopy indicated that 9AA in the amino monomeric form may interact with the enzyme by means of two different bonds: an ionic bond with a negatively charged amino acid and a ring stacking interaction with an aromatic residue placed in the catalytic site of GB. This interaction mechanism was responsible for a strong exciplex emission detected at a longer wavelength than the expected value of the normal fluorescence emission. Moreover, the GB concentration dependence of the interaction suggested that the drug was sensitive to the quaternary structure of the enzyme.
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Affiliation(s)
- A Murza
- Instituto de Catálisis, CSIC, 28049 Madrid, Spain
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14
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Rivas L, Murza A, Sánchez-Cortés S, García-Ramos JV. Interaction of antimalarial drug quinacrine with nucleic acids of variable sequence studied by spectroscopic methods. J Biomol Struct Dyn 2000; 18:371-83. [PMID: 11149514 DOI: 10.1080/07391102.2000.10506674] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The interaction of antimalarial drug quinacrine (QA) with polynucleotides is studied by UV-visible absorption, fluorescence and surface-enhanced Raman spectroscopy (SERS). The polynucleotides employed for such a study were calf thymus DNA, poly(A).poly(T), poly(A).poly(U), poly(C).poly(G) and poly(dG-dC).poly(dG-dC). Absorption and fluorescence spectra of QA complexes indicate that an interaction with the biomolecule is taking place, although different interaction mechanisms are probable depending on the sequence. The SERS spectra also reflect spectral changes which depend on the polymer sequence and that can be correlated to those observed by fluorescence, with the advantage of the detailed structural information provided by this vibrational technique. QA interacts with polynucleotides through its diprotonated form and by ring stacking. The strength of such interaction is extremely sequence dependent, thus suggesting different interaction mechanisms in each case. The SERS technique allows the simultaneous study of those polynucleotide moieties that are directly involved in the interaction thanks to the short-range character of the SERS spectroscopy. The interaction of QA with the above nucleic acids lead to a different change in the chain stability and flexibility which is further related to the different denaturation tendency of the polymer in the presence of the metal surface.
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Affiliation(s)
- L Rivas
- Instituto de Estructura de la Materia, CSIC, Serrano, Madrid, Spain
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15
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Vogel E, Gbureck A, Kiefer W. Vibrational spectroscopic studies on the dyes cresyl violet and coumarin 152. J Mol Struct 2000. [DOI: 10.1016/s0022-2860(00)00385-9] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Carlson HA, Masukawa KM, Rubins K, Bushman FD, Jorgensen WL, Lins RD, Briggs JM, McCammon JA. Developing a dynamic pharmacophore model for HIV-1 integrase. J Med Chem 2000; 43:2100-14. [PMID: 10841789 DOI: 10.1021/jm990322h] [Citation(s) in RCA: 212] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present the first receptor-based pharmacophore model for HIV-1 integrase. The development of "dynamic" pharmacophore models is a new method that accounts for the inherent flexibility of the active site and aims to reduce the entropic penalties associated with binding a ligand. Furthermore, this new drug discovery method overcomes the limitation of an incomplete crystal structure of the target protein. A molecular dynamics (MD) simulation describes the flexibility of the uncomplexed protein. Many conformational models of the protein are saved from the MD simulations and used in a series of multi-unit search for interacting conformers (MUSIC) simulations. MUSIC is a multiple-copy minimization method, available in the BOSS program; it is used to determine binding regions for probe molecules containing functional groups that complement the active site. All protein conformations from the MD are overlaid, and conserved binding regions for the probe molecules are identified. Those conserved binding regions define the dynamic pharmacophore model. Here, the dynamic model is compared to known inhibitors of the integrase as well as a three-point, ligand-based pharmacophore model from the literature. Also, a "static" pharmacophore model was determined in the standard fashion, using a single crystal structure. Inhibitors thought to bind in the active site of HIV-1 integrase fit the dynamic model but not the static model. Finally, we have identified a set of compounds from the Available Chemicals Directory that fit the dynamic pharmacophore model, and experimental testing of the compounds has confirmed several new inhibitors.
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Affiliation(s)
- H A Carlson
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0365, USA.
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17
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Mirossay A, Mirossay L, Tóthová J, Miskovský P, Onderková H, Mojzis J. Potentiation of hypericin and hypocrellin-induced phototoxicity by omeprazole. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 1999; 6:311-317. [PMID: 11962536 DOI: 10.1016/s0944-7113(99)80051-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Hypericin and hypocrellin are potential antiviral and antineoplastic agents with multiple modes of light-induced biological activity connected with a production of singlet oxygen and/or excited-state proton transfer and consequent pH drop formation in the drugs environment. In present work light-induced cytotoxicity of hypericin (1 x 10(-5) - 10(-9) mol) and hypocrellin (1 x 10(-5) - 10(-9) mol) and potentiating effect of omeprazole on human leukemic cell line HL-60 was studied. Under dark condition cultivation none cytotoxicity was observed. The only one exception was hypocrellin in concentration 1 x 10(-5) mol which displayed full cytotoxic effect. However, illumination increased cytotoxic effect of hypericin and hypocrellin, both. Omeprazole, an inhibitor of H+K+-ATPase, has been used for testing the hypothetical pH decreasing effect of hypericin and hypocrellin in their cytotoxic mechanism of action. The results of our experiments have shown that in HL-60 cell line the effect of hypericin and hypocrellin at 1 x 10(-6) mol (both) was significantly potentiated by omeprazole in concentrations 1 x 10(-6) - 10(-9) mol. Our results support the hypothesis that the excited-state proton transfer and the consequent acidification of hypericin and hypocrellin environment could play a role in the biological activity of both agents.
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Affiliation(s)
- A Mirossay
- Department of Pharmacology, Medical Faculty, P. J. Safarik University, Kosice, Slovak Republic
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Smirnov A, Fulton DB, Andreotti A, Petrich JW. Exploring Ground-State Heterogeneity of Hypericin and Hypocrellin A and B: Dynamic and 2D ROESY NMR Study. J Am Chem Soc 1999. [DOI: 10.1021/ja9906002] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Smirnov
- Contribution from the Department of Chemistry and the Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011
| | - D. B. Fulton
- Contribution from the Department of Chemistry and the Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011
| | - A. Andreotti
- Contribution from the Department of Chemistry and the Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011
| | - J. W. Petrich
- Contribution from the Department of Chemistry and the Department of Biochemistry, Biophysics and Molecular Biology, Iowa State University, Ames, Iowa 50011
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19
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Kocisová E, Chinsky L, Miskovský P. Sequence specific interaction of the photoactive drug hypericin depends on the structural arrangement and the stability of the structure containing its specific 5AG3 target: a resonance Raman spectroscopy study. J Biomol Struct Dyn 1999; 17:51-9. [PMID: 10496421 DOI: 10.1080/07391102.1999.10508340] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The resonance Raman spectra of three oligonucleotides with different lengths containing a specific 5'AG3' target doublet for hypericin - a potent antiretroviral and anticancer photoactive agent, and their 1:1 and 1:2 (oligonucleotide: hypericin) complexes are reported. It is shown that the structural arrangement of the oligonucleotides, their structural stability and the local structural arrangement around the 5'AG3' hypericin target, are the factors which determine the formation of a stable, specifically bounded DNA-hypericin complexes.
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Affiliation(s)
- E Kocisová
- Department of Biophysics, P.J. Safárik University, Kosice, Slovakia
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20
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Arabei S, Pavich T, Galaup JP, Jardon P. Influence of the nature of sol–gel matrices on absorption and fine-structure fluorescence spectra of hypericin. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00443-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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21
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Das K, Smirnov AV, Wen J, Miskovsky P, Petrich JW. Photophysics of Hypericin and Hypocrellin A in Complex with Subcellular Components: Interactions with Human Serum Albumin. Photochem Photobiol 1999. [DOI: 10.1111/j.1751-1097.1999.tb03339.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Das K, Smirnov AV, Snyder MD, Petrich JW. Picosecond Linear Dichroism and Absorption Anisotropy of Hypocrellin: Toward a Unified Picture of the Photophysics of Hypericin and Hypocrellin. J Phys Chem B 1998. [DOI: 10.1021/jp980249r] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Das
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - A. V. Smirnov
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - M. D. Snyder
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - J. W. Petrich
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
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23
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Lyon LA, Keating CD, Fox AP, Baker BE, He L, Nicewarner SR, Mulvaney SP, Natan MJ. Raman spectroscopy. Anal Chem 1998; 70:341R-361R. [PMID: 9640107 DOI: 10.1021/a1980021p] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- L A Lyon
- Department of Chemistry, Pennsylvania State University, University Park 16802, USA
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24
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Miškovský P, Jancura D, Sánchez-Cortés S, Kočišová E, Chinsky L. Antiretrovirally Active Drug Hypericin Binds the IIA Subdomain of Human Serum Albumin: Resonance Raman and Surface-Enhanced Raman Spectroscopy Study. J Am Chem Soc 1998. [DOI: 10.1021/ja974233a] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pavol Miškovský
- Contribution from the Department of Biophysics, P. J. Šafárik University, Jesenná 5, 041 54 Košice, Slovakia, Instituto de Estructura de la Materia, CSIC, Serrano, 121, 28006 Madrid, Spain, and LPBC (CNRS URA 2056), Université P. et M. Curie, Case 138, 4 Place Jussieu, 75231 Paris Cedex 05, France
| | - Daniel Jancura
- Contribution from the Department of Biophysics, P. J. Šafárik University, Jesenná 5, 041 54 Košice, Slovakia, Instituto de Estructura de la Materia, CSIC, Serrano, 121, 28006 Madrid, Spain, and LPBC (CNRS URA 2056), Université P. et M. Curie, Case 138, 4 Place Jussieu, 75231 Paris Cedex 05, France
| | - Santiago Sánchez-Cortés
- Contribution from the Department of Biophysics, P. J. Šafárik University, Jesenná 5, 041 54 Košice, Slovakia, Instituto de Estructura de la Materia, CSIC, Serrano, 121, 28006 Madrid, Spain, and LPBC (CNRS URA 2056), Université P. et M. Curie, Case 138, 4 Place Jussieu, 75231 Paris Cedex 05, France
| | - Eva Kočišová
- Contribution from the Department of Biophysics, P. J. Šafárik University, Jesenná 5, 041 54 Košice, Slovakia, Instituto de Estructura de la Materia, CSIC, Serrano, 121, 28006 Madrid, Spain, and LPBC (CNRS URA 2056), Université P. et M. Curie, Case 138, 4 Place Jussieu, 75231 Paris Cedex 05, France
| | - Laurent Chinsky
- Contribution from the Department of Biophysics, P. J. Šafárik University, Jesenná 5, 041 54 Košice, Slovakia, Instituto de Estructura de la Materia, CSIC, Serrano, 121, 28006 Madrid, Spain, and LPBC (CNRS URA 2056), Université P. et M. Curie, Case 138, 4 Place Jussieu, 75231 Paris Cedex 05, France
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25
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Kocisova E, Chinsky L, Miskovsky P. Sequence specific interaction of the antiretrovirally active drug hypericin with 5'ATGGCAGGATAT3' oligonucleotide: a resonance Raman spectroscopy study. J Biomol Struct Dyn 1998; 15:1147-54. [PMID: 9669559 DOI: 10.1080/07391102.1998.10509008] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The resonance Raman spectra of two oligonucleotides and their complexes with potent antiretrovirally and antineoplastic active photochemical drug hypericin are reported. The Raman spectra of two oligonucleotides containing twelve base pairs on addition of hypericin (one and two molecules per one oligonucleotide) were compared. The first one contains the first nine base pairs of the "rev" gene coming from HIV genome with three base pairs added to stabilize the duplex (5'ATGGCAGGATAT3') and the second one consists of the same content of the nucleotide bases but in changed sequence order which serves as a control sequence (5'ACGTGATGATGA3'). Differences in the spectra of the "rev" gene sequence and control sequence in interaction with the drug indicate that: i) the AG and GA nucleotide doublets are structurally specific targets for hypericin and ii) the hypericin interaction with 5'AG3' target is stronger than with 5'GA3' one.
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Affiliation(s)
- E Kocisova
- Department of Biophysics, P.J. Safarik University Jesenna 5, Kosice, Slovak Republic
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26
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An electroreflectance and photoelectrochemical study of hypericin at bare and modified gold electrodes. J Electroanal Chem (Lausanne) 1998. [DOI: 10.1016/s0022-0728(97)00587-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Petrich JW, Gordon MS, Cagle M. Structure and Energetics of Ground-State Hypericin: Comparison of Experiment and Theory. J Phys Chem A 1998. [DOI: 10.1021/jp973442e] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. W. Petrich
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - M. S. Gordon
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | - M. Cagle
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
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28
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Determination of the stability of complexes between DNA and the thiazole orange derivatives TO6 and TOTO by surface-enhanced resonance Raman spectroscopy. ACTA ACUST UNITED AC 1997. [DOI: 10.1002/(sici)1520-6343(1997)3:3<207::aid-bspy4>3.0.co;2-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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