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Shokurov AV, Novak DN, Ostroverkhov PV, Grin MA, Zaytseva AV, Raitman OA, Moroté F, Cohen-Bouhacina T, Grauby-Heywang C, Selektor SL. Lipid monolayer as a simple model membrane for comparative assessment of the photodynamic therapy photosensitizer efficiency via macroscopic measurements. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 210:111958. [PMID: 32707424 DOI: 10.1016/j.jphotobiol.2020.111958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 11/17/2022]
Abstract
Cellular membrane is one of the main targets of photodynamic therapy. Its high complexity has led to the study of the efficiency of photosensitizers on artificial lipid systems mimicking membranes. However, the preliminary analysis of this efficiency remains limited due to difficulty of the model construction and/or implementation of the required measurement techniques. Hereby, we propose a quite simple way for the rapid comparative assessment of novel photosensitizers in terms of membrane photodegradation, based on simple and fast measurements, such as wetting angle and surface plasmon resonance spectroscopy. As a proof of concept, we applied this methodology to two bacteriopurpurinimide derivatives. We have shown in particular that such complementary techniques can be employed not only for the multiparametric monitoring of the kinetics of the photodegradation, but also for the comparison of the damaging efficiency of the photosensitizers in the lipid structures as well.
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Affiliation(s)
- A V Shokurov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia.
| | - D N Novak
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia; MIREA-Russian Technological University, 78 Vernadsky Avenue, 119454 Moscow, Russia
| | - P V Ostroverkhov
- MIREA-Russian Technological University, 78 Vernadsky Avenue, 119454 Moscow, Russia
| | - M A Grin
- MIREA-Russian Technological University, 78 Vernadsky Avenue, 119454 Moscow, Russia
| | - A V Zaytseva
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - O A Raitman
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
| | - F Moroté
- Laboratoire Ondes et Matière d'Aquitaine (LOMA), UMR-CNRS 5798, Université de Bordeaux, 351 cours de la Libération, Talence Cedex 33405, France
| | - T Cohen-Bouhacina
- Laboratoire Ondes et Matière d'Aquitaine (LOMA), UMR-CNRS 5798, Université de Bordeaux, 351 cours de la Libération, Talence Cedex 33405, France
| | - C Grauby-Heywang
- Laboratoire Ondes et Matière d'Aquitaine (LOMA), UMR-CNRS 5798, Université de Bordeaux, 351 cours de la Libération, Talence Cedex 33405, France
| | - S L Selektor
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky pr. 31-4, Moscow 119071, Russia
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Lopes SC, Silva RA, Novais MV, Coelho LD, Ferreira LA, Souza PE, Tedesco A, Azevedo RB, Aguiar MG, Oliveira MC. Topical photodynamic therapy with chloroaluminum phthalocyanine liposomes is as effective as systemic pentavalent antimony in the treatment of experimental cutaneous leishmaniasis. Photodiagnosis Photodyn Ther 2019; 28:210-215. [DOI: 10.1016/j.pdpdt.2019.08.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/09/2019] [Accepted: 08/16/2019] [Indexed: 12/23/2022]
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3
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Chen S, Poyer F, Garcia G, Fiorini-Debuisschert C, Rosilio V, Maillard P. Amphiphilic Glycoconjugated Porphyrin Heterodimers as Two-Photon Excitable Photosensitizers: Design, Synthesis, Photophysical and Photobiological Studies. ChemistrySelect 2018. [DOI: 10.1002/slct.201703013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Su Chen
- Department Chemistry and Modelisation and Imaging for Biology (CMIB); Institut Curie, Research Center; PSL Research University, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
- CNRS UMR 9187 - INSERM U 1196; Université Paris-Saclay; Université Paris Sud 11, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
| | - Florent Poyer
- Department Chemistry and Modelisation and Imaging for Biology (CMIB); Institut Curie, Research Center; PSL Research University, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
- CNRS UMR 9187 - INSERM U 1196; Université Paris-Saclay; Université Paris Sud 11, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
| | - Guillaume Garcia
- Department Chemistry and Modelisation and Imaging for Biology (CMIB); Institut Curie, Research Center; PSL Research University, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
- CNRS UMR 9187 - INSERM U 1196; Université Paris-Saclay; Université Paris Sud 11, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
| | | | - Véronique Rosilio
- Institut Galien Paris Sud, CNRS UMR 8612; Université Paris Sud 11; Université Paris-Saclay; 5 rue J.-B. Clément F-92296 Châtenay-Malabry France
| | - Philippe Maillard
- Department Chemistry and Modelisation and Imaging for Biology (CMIB); Institut Curie, Research Center; PSL Research University, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
- CNRS UMR 9187 - INSERM U 1196; Université Paris-Saclay; Université Paris Sud 11, Bât 110-112, Centre Universitaire; Rue Henri Becquerel F-91405 Orsay Cedex France
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Rosilio V. How Can Artificial Lipid Models Mimic the Complexity of Molecule–Membrane Interactions? ACTA ACUST UNITED AC 2018. [DOI: 10.1016/bs.abl.2017.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Horne TK, Cronjé MJ. Mechanistics and photo-energetics of macrocycles and photodynamic therapy: An overview of aspects to consider for research. Chem Biol Drug Des 2017; 89:221-242. [DOI: 10.1111/cbdd.12761] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 03/24/2016] [Accepted: 04/05/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Tamarisk K. Horne
- Department of Biochemistry; Faculty of Science; University of Johannesburg; Auckland Park South Africa
| | - Marianne J. Cronjé
- Department of Biochemistry; Faculty of Science; University of Johannesburg; Auckland Park South Africa
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Sanan R, Kang TS, Mahajan RK. Complexation, dimerisation and solubilisation of methylene blue in the presence of biamphiphilic ionic liquids: a detailed spectroscopic and electrochemical study. Phys Chem Chem Phys 2014; 16:5667-77. [PMID: 24522552 DOI: 10.1039/c3cp54030h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interactions of methylene blue (MB), a redox active dye with surface active biamphiphilic ionic liquids (BAILs): 1-butyl-3-methylimidazolium dodecylsulfate, [C4mim][C12OSO3] and 1-hexyl-3-methylimidazolium dodecylsulfate [C6mim][C12OSO3] have been investigated in aqueous medium to explore the candidature of surface active ionic liquids (ILs) in the field of dye-surfactant chemistry. Various thermodynamic, spectroscopic and electrochemical techniques such as conductivity, steady-state fluorescence, UV-visible absorption, and cyclic voltammetry (CV) have been used to obtain comprehensive information about MB-BAIL interactions. The presence of MB is seen to enhance the critical micellar concentration (cmc) of BAILs. The extent of interaction between the MB and BAILs varies with the concentration as well as the nature of BAILs. Different interactional phenomena such as the formation of ion-pair complexes, dimers, and solubilisation of monomers of MB have been observed in different concentration regimes of BAILs. A quantitative evaluation of the process of interaction between MB and BAILs has been made in terms of various micellar and binding parameters exploiting UV-visible absorption and CV measurements. Comparatively more hydrophobic [C6mim][C12OSO3] interacts strongly with MB as compared to [C4mim][C12OSO3] via hydrophobic and electrostatic interactions.
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Affiliation(s)
- Reshu Sanan
- Department of Chemistry, UGC-Centre for Advanced Studies, Guru Nanak Dev University, Amritsar-143005, India.
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Faria PEP, Felipucci DNB, Simioni AR, Primo FL, Tedesco AC, Salata LA. Effects of Photodynamic Process (PDP) in Implant Osseointegration: A Histologic and Histometric Study in Dogs. Clin Implant Dent Relat Res 2014; 17:879-90. [DOI: 10.1111/cid.12204] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Paulo Esteves Pinto Faria
- Oral and Maxillofacial Surgery; School of Dentistry of the University of Ribeirão Preto; São Paulo Brazil
| | - Daniela Nair Borges Felipucci
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo; São Paulo Brazil
| | - Andreza Ribeiro Simioni
- Institute of Research and Development; Laboratory of Organic Synthesis; University of Paraíba Valley; São José dos Campos Brazil
| | - Fernando Lucas Primo
- Department of Chemistry; Faculty of Philosophy and Science at Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
| | - Antonio Cláudio Tedesco
- Department of Chemistry; Group of Photobiology and Photo Medicine; Faculty of Philosophy and Science at Ribeirão Preto; University of São Paulo; Ribeirão Preto Brazil
| | - Luiz Antonio Salata
- Department of Oral and Maxillofacial Surgery and Periodontics; Faculty of Dentistry; University of São Paulo; Ribeirão Preto Brazil
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Veres D, Bőcskei-Antal B, Voszka I, Módos K, Csík G, Kaposi AD, Fidy J, Herenyi L. Comparison of Binding Ability and Location of Two Mesoporphyrin Derivatives in Liposomes Explored with Conventional and Site-Selective Fluorescence Spectroscopy. J Phys Chem B 2012; 116:9644-52. [DOI: 10.1021/jp304712n] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dániel Veres
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
| | - Barnabás Bőcskei-Antal
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
| | - István Voszka
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
| | - Károly Módos
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
| | - Gabriella Csík
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
| | - András D. Kaposi
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
| | - Judit Fidy
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
| | - Levente Herenyi
- Department of Biophysics and Radiation Biology, Semmelweis University, POB. 263, H-1444 Budapest, Hungary
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Lluïsa Sagristá M, Postigo F, Africa De Madariaga M, Pintó RM, Caballero S, Bosch A, Asunción Vallés M, Mora M. Photodynamic inactivation of viruses by immobilized chlorin-containing liposomes. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424609000759] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The viral safety of blood derived products relies in properly chosen inactivation procedures. In this way, it has been reported that some photosensitizers are useful products for blood sterilization. The data presented here show the high incorporation efficiency of the chlorin 3-phorbinepropanol, 9,14-diethyl-4,8,13,18-tetramethyl-20-(3S-trans) (CHL) into anionic unilamellar liposomes, give a protocol for the steric immobilization of chlorin-containing liposomes in a chromatographic support and provide the studies of photodynamic inactivation of bovine viral diarrhea virus (BVDV) and encephalomyocarditis virus (EMCV) with chlorin-containing liposomes, free in solution and immobilized on Sephacryl S-1000 beads. The study demonstrates the successful inactivation of the enveloped virus BVDV by both preparations in culture medium and the resistance of the non-enveloped virus EMCV. The effectiveness of CHL-containing liposomes, in solution and immobilized in the chromatographic support, decreased when the culture media was replaced with human blood plasma. Moreover, the reduction factor of the virus titer after irradiation was smallest when immobilized liposomes were used. Nevertheless, the reduction factor for the virus titers of enveloped viruses after irradiation of human blood plasma samples with immobilized chlorin-containing liposomes increased with the reduction of the sample thickness. The more outstanding aspect of this paper is the design of a system useful for blood sterilization that can be easily removed after photodynamic treatment and, therefore, able to be applied in the manufacturing processes.
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Affiliation(s)
- M. Lluïsa Sagristá
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
| | - Fernado Postigo
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
| | - M. Africa De Madariaga
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
| | - Rosa M. Pintó
- Department of Microbiology, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
| | - Santiago Caballero
- Department of Microbiology, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
| | - Albert Bosch
- Department of Microbiology, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
| | - M. Asunción Vallés
- Department of Organic Chemistry, University of Barcelona, Martí i Franqués 1, E-08028 Barcelona, Spain
| | - Margarita Mora
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
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Mora M, Sagristá ML. Preclinical photodynamic therapy in Spain 2: Liposome vectorization of photosensitizers; Different strategies, different outcomes. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s108842460900053x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Photodynamic therapy is an emerging modality of cancer treatment based on the use of photosensitizing drugs, which accumulate selectively in tumor cells. Exposure to visible light induces local cytotoxic effects that lead selectively to tumor cell death in the irradiated region, thereby minimizing the risk and extension of unwanted secondary effects. One of the goals sought in the development of photodynamic therapy drugs is the selective targeting of tumor cells. As a general trend, the indiscriminate delivery of drugs is being increasingly substituted by the selective delivery to pathological tissues which can be achieved by embedding them into transporters that actively recognize differential factors of tumor cells and tissues as compared to healthy ones. Likewise, the chemical modification of the photosensitizers is a valid strategy to change the subcellular localization of the drug. The use of liposomes as transporters for targeted delivery of drugs has attracted particular attention during the last two decades. After a period characterized by the skepticism expressed by certain scientists in the field of drug delivery, interest in liposomes was rejuvenated by the introduction of fresh ideas from membrane biophysics.
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Affiliation(s)
- Margarita Mora
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Av. Diagonal 645, Annex Building, 08028 Barcelona, Spain
| | - M. Lluïsa Sagristá
- Department of Biochemistry and Molecular Biology, Faculty of Biology, University of Barcelona, Av. Diagonal 645, Annex Building, 08028 Barcelona, Spain
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Kropacheva TN, van der Haas RNS, van der Steen R, Gast P, Schuitmaker HJ, Lugtenburg J. Binding and acid-base properties of novel photosensitizing drugs in micellar and liposome solutions. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424608000108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The binding and acid-base equilibria of the two novel mesoporphyrin derivatives, PB07 and PB109 (quino[4,4a,5,6-efg]- annulated 7-demethyl-8-deethylmesoporphyrin and 2'-cyano-8'-formyl-N'-methyl-1',1a',5a',6'-tetrahydroacrido [4,5,5a,6-bcd]- annulated 2,3-dihydromesoporphyrin, resp.), which are promising agents for photodynamic therapy (PDT), were studied in aqueous solutions of different surfactants (Triton X-100 (TX-100), dodecyl maltoside (DDM), cetyltrimethylammonium bromide (CTAB), lithium dodecyl sulfate (LDS)) and phosphatidyl choline (PC) liposomes. In all cases, the porphyrins are solubilized at neutral/alkaline pH in monomeric form and remain micelle/liposome-bound independently of their ionization state. The dissociation constants of the solubilized porphyrins are found to be influenced by the charge of the surface groups of the carrier. The protonation of pyrrole/quinoline nitrogens of the studied porphyrins is facilitated in the following order: LDS ≫TX-100 (DDM, PC liposomes) > CTAB. The dissociation constants of PB 07 carboxylic groups are similar in neutral/cationic micellar and liposome solutions and are significantly decreased for LDS-bound pigment. The results provide necessary information for the optimization of delivery systems for PB 07 and PB 109 when applied as sensitizers in PDT.
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Affiliation(s)
- Tatyana N. Kropacheva
- Leiden Institute of Chemistry, Gorlaeus Laboratory, Leiden University, Leiden, The Netherlands
| | | | - Robert van der Steen
- Leiden Institute of Chemistry, Gorlaeus Laboratory, Leiden University, Leiden, The Netherlands
| | - Peter Gast
- Biophysics Department, Huygens Laboratory, Leiden University, Leiden, The Netherlands
| | | | - Johan Lugtenburg
- Leiden Institute of Chemistry, Gorlaeus Laboratory, Leiden University, Leiden, The Netherlands
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Zhang J, Deng L, Yao J, Gu P, Yang F, Wang X, Liu W, Zhang Y, Ke X, Jing X, Chen J. Synthesis and photobiological study of a novel chlorin photosensitizer BCPD-18MA for photodynamic therapy. Bioorg Med Chem 2011; 19:5520-8. [DOI: 10.1016/j.bmc.2011.07.041] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2011] [Revised: 07/21/2011] [Accepted: 07/22/2011] [Indexed: 11/26/2022]
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The effect of liposomes’ surface electric potential on the uptake of hematoporphyrin. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2011; 1808:2031-5. [DOI: 10.1016/j.bbamem.2011.03.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2010] [Revised: 03/02/2011] [Accepted: 03/20/2011] [Indexed: 11/21/2022]
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Makky A, Michel J, Maillard P, Rosilio V. Biomimetic liposomes and planar supported bilayers for the assessment of glycodendrimeric porphyrins interaction with an immobilized lectin. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2011; 1808:656-66. [DOI: 10.1016/j.bbamem.2010.11.028] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Revised: 11/18/2010] [Accepted: 11/22/2010] [Indexed: 10/18/2022]
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Herenyi L, Veres D, Békási S, Voszka I, Módos K, Csík G, Kaposi AD, Fidy J. Location of Mesoporphyrin in Liposomes Determined by Site-Selective Fluorescence Spectroscopy. J Phys Chem B 2009; 113:7716-24. [DOI: 10.1021/jp9022184] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Levente Herenyi
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
| | - Dániel Veres
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
| | - Sándor Békási
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
| | - István Voszka
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
| | - Károly Módos
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
| | - Gabriella Csík
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
| | - András D. Kaposi
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
| | - Judit Fidy
- Department of Biophysics and Radiation Biology, Semmelweis University, P. O. Box 263, H-1444 Budapest, Hungary
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Whateley TL. Literature Alerts. Drug Deliv 2008. [DOI: 10.3109/10717549609031381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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17
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Literature Alerts. J Microencapsul 2008. [DOI: 10.3109/02652049609052911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Konan YN, Chevallier J, Gurny R, Allémann E. Encapsulation of p-THPP into Nanoparticles: Cellular Uptake, Subcellular Localization and Effect of Serum on Photodynamic Activity¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2003)0770638eopinc2.0.co2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kępczyński M, Pandian RP, Smith KM, Ehrenberg B. Do Liposome-binding Constants of Porphyrins Correlate with Their Measured and Predicted Partitioning Between Octanol and Water?¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2002)0760127dlbcop2.0.co2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Angeli NG, Lagorio MG, Román EAS, Dicelio LE. Meso-Substituted Cationic Porphyrins of Biological Interest. Photophysical and Physicochemical Properties in Solution and Bound to Liposomes ¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2000)0720049mscpob2.0.co2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Severino D, Junqueira HC, Gugliotti M, Gabrielli DS, Baptista MS. Influence of Negatively Charged Interfaces on the Ground and Excited State Properties of Methylene Blue ¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2003)0770459ioncio2.0.co2] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Kępczyński M, Ehrenberg B. Interaction of Dicarboxylic Metalloporphyrins with Liposomes. The Effect of pH on Membrane Binding Revisited¶. Photochem Photobiol 2007. [DOI: 10.1562/0031-8655(2002)0760486iodmwl2.0.co2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Ben-Dror S, Bronshtein I, Wiehe A, Röder B, Senge MO, Ehrenberg B. On the correlation between hydrophobicity, liposome binding and cellular uptake of porphyrin sensitizers. Photochem Photobiol 2006; 82:695-701. [PMID: 16435882 DOI: 10.1562/2005-09-01-ra-669] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A crucial factor in choosing a porphyrin or analogous photosensitizer for photodynamic therapy (PDT) is its ability to incorporate into the cells. For hydrophobic compounds that partition passively into the cytoplasmic membrane, a partition coefficient between an organic solvent and water, P, is one factor that could be used to predict the molecule's ability to diffuse into biomembranes. We synthesized several porphyrins, modified with two, three or four meso-substituents and studied their spectroscopic and photophysical properties. The octanol-water partitioning coefficients, log P, were calculated as a parameter for hydrophobicity. We found these porphyrins to be very hydrophobic, with log P values in the range of 8.9-11.8. These were correlated with the binding constants of these porphyrins into liposomes, K(b), as well as to their uptake by cells. The correlation between the estimated log P and K(b) is nearly linear but negative, indicating, apparently, that there is lesser binding to liposomes with increased hydrophobicity. On the other hand, all of the studied porphyrins are taken up by cells, but there is no clear correlation between cellular uptake and the log P or K(b). Lipinski's pharmacological "rule of 5" predicts poor permeation of drugs into cells when log P is greater than five. This may be relevant for diffusional binding to liposomes, where aqueous aggregation can interfere strongly with cellular uptake. In such extreme conditions, neither liposome binding nor other rules seem to predict porphyrin behavior in vitro.
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Postigo F, Sagristá ML, De Madariaga MA, Nonell S, Mora M. Photosensitization of skin fibroblasts and HeLa cells by three chlorin derivatives: Role of chemical structure and delivery vehicle. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2006; 1758:583-96. [PMID: 16740249 DOI: 10.1016/j.bbamem.2006.02.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2005] [Revised: 02/06/2006] [Accepted: 02/13/2006] [Indexed: 11/26/2022]
Abstract
The chemical nature of the sensitizer and its selective uptake by malignant cells are decisive to choose an appropriate biocompatible carrier, able to preserve the photosensitizing characteristics of the dye. In this paper we demonstrate the photodynamic properties of three chlorins, derived from chlorophyll a, and the usefulness of liposomal carriers to design pharmaceutical formulations. The chlorins have been quantitatively incorporated into stable liposomes obtained from a mixture of L-alpha-palmitoyloleoylphosphatidylcholine and L-alpha-dioleoylphosphatidylserine in a 13.5:1.5 molar ratio (POPC/OOPS-liposomes). The chlorin uptake by skin fibroblasts increases steadily, reaching in all cases a plateau level dependent on both the chlorin structure and the vehicle employed. The photophysical properties of the three chlorins in THF are nearly identical and fulfill the requirements for a PDT photosensitizer. Incorporation of chlorins into liposomes induces important changes in their photophysics, but does not impair their cellular uptake or their cell photosensitization ability. In fact we observe in the cells the same photophysical behavior as in THF solution. Specifically, we demonstrate, by recording the near-IR phosphorescence of 1O2, that the chlorins are able to photosensitize the production of 1O2 in the cell membrane. The cell-photosensitization efficiency depended on the chlorin and cell line nature, the carrier, and the length of pre-incubation and post-irradiation periods. The high photodynamic activity of chlorin-loaded liposomes and the possibility to design liposomal carriers to achieve a specific target site favors this approach to obtain an eventual pharmaceutical formulation.
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Affiliation(s)
- Fernando Postigo
- Departament de Bioquímica i Biologia Molecular, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028-Barcelona, Spain
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Abstract
Vitamin E offers protection against oxidative stress and is an efficient quencher of singlet oxygen. A recent report suggests that photo-excitation of vitamin E results in the formation of a triplet state (Naqvi et al. Photochem Photobiol Sci 2, 381 (2003)). This leads to the possibility of the triplet state of vitamin E being able to sensitize singlet oxygen and if this is the case it would be counter productive in terms of the biological protective function of vitamin E. We report the production of singlet oxygen, detected by 1270 nm luminescence, from pulsed laser excitation (308 nm) of vitamin E and an analogue, 2,2,5,7,8-pentamethyl-6-hydroxy-chroman (PMHC), with quantum yields between ~0.1 and 0.2. The luminescence was identified as singlet oxygen from self-quenching by vitamin E with solvent-dependent rate constants similar to published values. Whilst the beneficial antioxidant aspects of vitamin E are well established, these results indicate that vitamin E when directly excited can sensitize singlet oxygen formation and may, therefore, be capable of inducing biochemical and biological damage. The results are discussed in relation to recent reports on the deleterious effects of vitamin E dietary supplementation and pro-oxidant effects of vitamin E.
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Affiliation(s)
- Shakeela Dad
- Biosciences Research Institute, University of Salford, Salford M5 4WT, UK
| | - Roger H Bisby
- Biosciences Research Institute, University of Salford, Salford M5 4WT, UK
| | - Ian P Clark
- Lasers for Science Facility, CCLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK
| | - Anthony W Parker
- Lasers for Science Facility, CCLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, UK
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26
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de Lima Santos H, Fortes Rigos C, Cláudio Tedesco A, Ciancaglini P. Rose Bengal located within liposome do not affect the activity of inside-out oriented Na,K-ATPase. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2005; 1715:96-103. [PMID: 16126158 DOI: 10.1016/j.bbamem.2005.07.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2005] [Revised: 07/25/2005] [Accepted: 07/29/2005] [Indexed: 01/25/2023]
Abstract
DPPC:DPPE-proteoliposomes (in which the enzyme is inside-out oriented) and DLOPC:DLOPE-proteoliposomes (in which the enzyme is only 40% inside-out oriented) is an excellent model for studying the selective effect of the reactive oxygen species, produced by the photo-activation of Rose Bengal. Both proteoliposomes used, when submitted to photo-irradiation with laser using 1200 mJ/cm2 energy dose, in the absence of the Rose Bengal, did not shown any effect in the ATPase activity and in the integrity of its systems. Also, no effect was observed using 50 microM of Rose Bengal encapsulated in the interior of the DPPC:DPPE-proteoliposome system. But, when we use 50 microM of Rose Bengal, present only in the extravesicular environment, and photo-irradiation with a laser dose of 200 mJ/cm2, it results in the loss of 40-50% of the ATPase activity, with damage of the DPPC:DPPE-proteoliposome integrity. Using a dose of 400 mJ/cm2 the ATPase activity was totality lost. Consequently, these effects could be correlated with direct damage in the peptide structure. The photo-irradiation of the system constituted by DLOPC:DLOPE-proteoliposome in the presence of Rose Bengal, encapsulated only in the interior compartment or in the extra-liposomal environments, revealed a gradual decrease of the ATPase activity, maintaining it at 30% after a dose of 1200 mJ/cm2 and losing total ATPase activity at 800 mJ/cm2, respectively, with the loss of integrity of this vesicular system in both conditions studied. The generated singlet oxygen could attack the double linkage present in the fatty acid structure of the lipid instead of the amino acid in the protein structure and, in a second step, result in an indirect inactivation of the enzyme activity. In summary, these results indicated that singlet oxygen species produced by photo-oxidation of Rose Bengal using laser light could act in protein and lipid structure depending on its proportion or distribution.
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Affiliation(s)
- Hérica de Lima Santos
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto-FFCLRP, Universidade de São Paulo-USP, 14040-901-Ribeirão Preto, SP. Brasil
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27
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Heyne B, Brault D, Fontaine-Aupart MP, Kohnen S, Tfibel F, Mouithys-Mickalad A, Deby-Dupont G, Hans P, Hoebeke M. Reactivity towards singlet oxygen of propofol inside liposomes and neuronal cells. Biochim Biophys Acta Gen Subj 2005; 1724:100-7. [PMID: 15878638 DOI: 10.1016/j.bbagen.2005.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2004] [Revised: 03/30/2005] [Accepted: 04/01/2005] [Indexed: 11/21/2022]
Abstract
Singlet oxygen (1O2), a reactive oxygen species, has been found to be implicated in many cellular events and pathological disorders. Herein, we investigated the reactivity of 1O2 towards the anaesthetic agent propofol (PPF) encapsulated within DMPC liposomes. By time resolved luminescence, the rate constant of 1O2 quenching by PPF was evaluated, depending on the location of the sensitizer, with following values: 1.35+/-0.05x10(7) M(-1) s(-1) for deuteroporphyrin (as embedded source) and 0.8+/-0.04x10(7) M(-1) s(-1) for uroporphyrin (as external source), respectively. The nature of the oxidation product, resulting from the reaction of 1O2 with PPF, was determined using absorption and HPLC techniques. Finally, the in vitro protective effect of PPF towards the 1O2-induced neuronal cell toxicity was evaluated in terms of cell viability.
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Affiliation(s)
- B Heyne
- Department of Physics, Institute of Physics (B5), Biomedical Spectroscopy (C.O.R.D.), University of Liège, Allée du 6 Août, 17, 4000 Liège, Belgium
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28
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Kepczyński M, Karewicz A, Górnicki A, Nowakowska M. Interactions of Porphyrin Covalently Attached to Poly(methacrylic acid) with Liposomal Membranes. J Phys Chem B 2004; 109:1289-94. [PMID: 16851093 DOI: 10.1021/jp046726p] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The interactions between the 5-(4-acryloyloxyphenyl)-10,15,20-tritolylporphyrin covalently attached to poly(methacrylic acid) chain (PMA-Po) and phosphatidylcholine liposomes in aqueous solution at different pH values were studied. The binding constants (K(b)) for the liposome- PMA-Po in solutions in the pH range from 6.5 to 9.2 were determined using fluorescence spectroscopy. The binding was found to be efficient. The acid-base properties of the porphyrin chromophores were also studied. Both pK values associated with imine-N protonation of the porphyrin core were found to be 6.4. The quantum yield (Phi(Delta)) of singlet oxygen production by Po in the lipid-PMA-Po system was found to be high (0.88 +/- 0.05).
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Affiliation(s)
- Mariusz Kepczyński
- Faculty of Chemistry, Jagiellonian University, 30-060 Kraków, Ingardena 3, Poland
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29
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Postigo F, Mora M, De Madariaga MA, Nonell S, Sagristá ML. Incorporation of hydrophobic porphyrins into liposomes: characterization and structural requirements. Int J Pharm 2004; 278:239-54. [PMID: 15196629 DOI: 10.1016/j.ijpharm.2004.03.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2003] [Revised: 02/20/2004] [Accepted: 03/03/2004] [Indexed: 11/28/2022]
Abstract
The ability of photosensitisers to give reactive oxygenated products is considered decisive for photodynamic applications, but the hydrophobic nature of many porphyrins makes necessary to obtain suitable pharmaceutical formulations. This paper reports the structural photosensitiser features that allow the preparation of stable liposomal formulations. Metallated and non-metallated TPPs and TPyPs and different lipid/porphyrin ratios were considered in order to procure liposomal preparations containing porphyrin concentrations adequate to necessary doses. The results show that the incorporation of porphyrins into liposomes can be related with their ability to form aggregates in a watery media. Thus, ZnTPP, which structural properties avoid the formation of aggregates, was efficiently incorporated into stable liposomes. Moreover, the efficient generation of singlet oxygen by ZnTPP liposomal suspensions has been shown. Because of this, the synthesis of hydrophobic porphyrin derived structures or other sensitisers, which do not aggregate in a watery media and with Q-bands shifted to higher lambda values than ZnTPP, will be efficiently incorporated into liposomes and useful for clinical applications.
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Affiliation(s)
- F Postigo
- Departament de Bioquímica i Biologia Molecular, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028, Spain
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Lang K, Mosinger J, Wagnerová D. Photophysical properties of porphyrinoid sensitizers non-covalently bound to host molecules; models for photodynamic therapy. Coord Chem Rev 2004. [DOI: 10.1016/j.ccr.2004.02.004] [Citation(s) in RCA: 371] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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31
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Konan YN, Chevallier J, Gurny R, Allémann E. Encapsulation of p-THPP into nanoparticles: cellular uptake, subcellular localization and effect of serum on photodynamic activity. Photochem Photobiol 2003; 77:638-44. [PMID: 12870850 DOI: 10.1562/0031-8655(2003)077<0638:eopinc>2.0.co;2] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The cellular uptake, localization and efflux of meso-tetra-(4-hydroxyphenyl)porphyrin (p-THPP)-loaded nanoparticles have been studied in EMT-6 tumor cells. The effect of blood serum on photocytotoxicity has also been evaluated. Sub-130 nm nanoparticles based on poly(D,L-lactide-co-glycolide) (PLGA) (50:50 PLGA and 75:25 PLGA) and poly(D,L-lactide) (PLA) have been examined in comparison with free p-THPP. For all formulations tested, uptake of photosensitizer into cells was dependent on concentration, time and temperature. All nanoparticulate formulations accumulated within the cells to a greater extent relative to free drug. Indeed, the fluorescence intensities measured on EMT-6 cells treated with p-THPP-loaded nanoparticulate formulations were at least two-fold higher than those obtained with free dye. Furthermore, the highest accumulation level was found with PLGA nanoparticles. Fluorescence microscopy revealed that endocytosis is a major intracellular sequestration mechanism of these p-THPP formulations and that these were localized into early and late endosomes. The efflux study performed on both nonirradiated and irradiated cells indicated that free and p-THPP-loaded nanoparticles gradually escaped from EMT-6 cells as a function of time. This was more pronounced when cells were treated with nanoparticles and irradiated, reflecting important photodamage. It was also found that regardless of the nanoparticulate formulations tested, p-THPP photocytotoxicity was influenced by the concentration of the serum.
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Affiliation(s)
- Y N Konan
- School of Pharmacy, University of Geneva, Geneva, Switzerland
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32
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Severino D, Junqueira HC, Gugliotti M, Gabrielli DS, Baptista MS. Influence of negatively charged interfaces on the ground and excited state properties of methylene blue. Photochem Photobiol 2003; 77:459-68. [PMID: 12812286 DOI: 10.1562/0031-8655(2003)077<0459:ioncio>2.0.co;2] [Citation(s) in RCA: 123] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Properties of the ground and excited states of methylene blue (MB) were studied in negatively charged vesicles, normal and reverse micelles and sodium chloride solutions. All these systems induce dimer formation as attested by the appearance of the dimer band in the absorption spectra (lamdaD approximately 600 nm). In reverse micelles the dimerization constant (KD) corrected for the aqueous pseudophase volume fraction is two-three orders of magnitude smaller than KD of MB in water, and it does not change when W0 is increased from 0.5 to 10. Differences in the fluorescence intensity as a function of dimer-monomer ratio as well as in the resonance light scattering spectra indicate that distinct types of dimers are induced in sodium dodecyl sulfate (SDS) micelles and aerosol-OT (sodium dioctyl sulfoxinate, AOT) reversed micelles. The properties of the photoinduced transient species of MB in these systems were studied by time-resolved near infrared (NIR) emission (efficiency of singlet oxygen generation), by laser flash photolysis (transient spectra, yield and decay rate of triplets) and by thermal lensing (amount of heat deposited in the medium). The competition between electron transfer (dye*-dye) and energy transfer (dye*-O2) reactions was accessed as a function of the dimer-monomer ratio. The lower yield of electron transfer observed for dimers in AOT reverse micelles and intact vesicles compared with SDS micelles and frozen vesicles at similar dimer-monomer ratios is related with the different types of aggregates induced by each interface.
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Affiliation(s)
- Divinomar Severino
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
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33
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Gerhardt SA, Lewis JW, Kliger DS, Zhang JZ, Simonis U. Effect of Micelles on Oxygen-Quenching Processes of Triplet-State Para-Substituted Tetraphenylporphyrin Photosensitizers. J Phys Chem A 2003. [DOI: 10.1021/jp0270912] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sarah A. Gerhardt
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, and Department of Chemistry and Biochemistry, San Francisco State University, San Francisco, California 94132
| | - James W. Lewis
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, and Department of Chemistry and Biochemistry, San Francisco State University, San Francisco, California 94132
| | - David S. Kliger
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, and Department of Chemistry and Biochemistry, San Francisco State University, San Francisco, California 94132
| | - Jin Z. Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, and Department of Chemistry and Biochemistry, San Francisco State University, San Francisco, California 94132
| | - Ursula Simonis
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, and Department of Chemistry and Biochemistry, San Francisco State University, San Francisco, California 94132
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34
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Kepczyński M, Ehrenberg B. Interaction of dicarboxylic metalloporphyrins with liposomes. The effect of pH on membrane binding revisited. Photochem Photobiol 2002; 76:486-92. [PMID: 12462642 DOI: 10.1562/0031-8655(2002)076<0486:iodmwl>2.0.co;2] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The acid-base properties of Zn-hematoporphyrin IX (ZnHP) and Zn-mesoporphyrin IX (ZnMP) and the effect of pH on their binding to liposomes have been studied. The ionization constants for the two carboxylate groups of ZnHP were calculated by principal component analysis and are 5.7 +/- 0.1 and 6.9 +/- 0.05. The neutral species and the mono- and dianionic forms all bind to liposomes, but a strong pH effect on the binding constant was observed for both the investigated compounds. We also observed a decrease in the binding of the two anionic species when the membranes carried a negative charge. These results indicate that the porphyrins partition into the membrane with their carboxylic moieties near the lipid-water interface so that their deprotonation, leading to a charged molecule, does not prevent the insertion of the tetrapyrrole ring into the lipid environment of neutral liposomes.
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35
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Kepczyński M, Pandian RP, Smith KM, Ehrenberg B. Do liposome-binding constants of porphyrins correlate with their measured and predicted partitioning between octanol and water? Photochem Photobiol 2002; 76:127-34. [PMID: 12194207 DOI: 10.1562/0031-8655(2002)076<0127:dlbcop>2.0.co;2] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We tested correlations between lipophilicity parameters and the partitioning of sensitizers into membranes. For this purpose we investigated 17 porphyrins and two chlorins having various chemical structures. Some of these compounds possess an amphiphilic structure (including hematoporphyrin, deuteroporphyrin, mesoporphyrin, chlorin e6 and more). The others are very symmetrical sensitizers [meso-tetra(N-methyl-4-pyridyl)porphyrin, tetra-benzoporphyrin, coproporphyrin I dihydrochloride (CP), meso-tetra(4-carboxyphenyl)porphyrin (TCP) and meso-tetra(m-hydroxyphenyl)chlorin]. Our investigation also included two series of hematoporphyrins and protoporphyrins with varying lengths of alkylcarboxylate side groups. The partitioning of these compounds between the bulk aqueous phase and liposomes was studied by fluorescence methods, and a liposome-binding constant, Kb, was obtained. It was found that CP and TCP do not incorporate into the lipid phase at pH 7.3. An n-octanol-water partition coefficient (log P) and a distribution coefficient (log D) were predicted with a modeling software. The values of log D were also obtained experimentally. We found that for the studied molecules, the predicted log D correlated well with the measured values. The values of log D as well as log P, in turn, did not correlate nicely, for the whole group of studied compounds, with the binding constants to liposomes. However, in the case of porphyrins that share a similar structure, the Kb showed good linear correlation with both log P and log D. For the series of hematoporphyrins and protoporphyrins with different lengths of alkylcarboxyl groups, it was shown that prolongation of this group caused an increase in the lipophilicity and the liposome-binding constant. This effect is more pronounced for the proto- than for the hematoporphyrin series. The results highlight the possible use, as well as limitations, of lipophilicity parameters for the prediction of membrane binding.
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36
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Angeli NG, Lagorio MG, San Román EA, Dicelio LE. Meso-substituted cationic porphyrins of biological interest. Photophysical and physicochemical properties in solution and bound to liposomes. Photochem Photobiol 2000; 72:49-56. [PMID: 10911728 DOI: 10.1562/0031-8655(2000)072<0049:mscpob>2.0.co;2] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A series of cationic porphyrins with 1-4 positive charges are studied: mono(N-methyl-4-pyridyl)triphenylporphine chloride [Mono], cis(N-methyl-4-pyridyl)diphenylporphine chloride [Cis], tri(N-methyl-4-pyridyl)monophenylporphine chloride [Tri] and tetra(N-methyl-4-pyridyl)porphine chloride [Tetra]. Their photophysical properties are measured in small unilamellar vesicles and compared with those in homogeneous solution. Liposomes of L-alpha-dimyristoyl-phosphatidylcholine (100 nm diameter) and L-alpha-dipalmitoyl-phosphatidylcholine (50 nm diameter) in phosphate-buffered saline (pH = 7.4) or D2O 0.15 M NaCl were used. The effect of the medium microheterogeinity is discussed. The triplet quantum yields in liposomes for all the porphyrins are about 0.7, similar to the value obtained for Tetra in aqueous media. The singlet molecular oxygen quantum yields for the hydrophilic compounds Tri and Tetra are greater than those of the hydrophobic ones, Mono and Cis. Also, association constants (KL) of the dyes to liposomes and their localization within the membranes are determined from fluorescence and fluorescence polarization measurements, respectively. KL values are in the range of 10(4)-10(5) M-1 for all the compounds, indicating that hydrophobic and coulombic interactions between porphyrins and liposomes are responsible for the dye association. Fluorescence polarization experiments indicate that Mono and Cis can penetrate into the lipidic phase, and that Tri and Tetra are located near the polar heads of the lipidic molecules.
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Affiliation(s)
- N G Angeli
- INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina
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37
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Allen CM, Sharman WM, Madeleine CL, Weber JM, Langlois R, Ouellet R, Lier JE. Photodynamic Therapy: Tumor Targeting with Adenoviral Proteins. Photochem Photobiol 1999. [DOI: 10.1111/j.1751-1097.1999.tb08246.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Wöhrle D, Hirth A, Bogdahn-Rai T, Schnurpfeil G, Shopova M. Photodynamic therapy of cancer: Second and third generations of photosensitizers. Russ Chem Bull 1998. [DOI: 10.1007/bf02498146] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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39
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Jiang F, Lilge L, Logie B, Li Y, Chopp M. Photodynamic therapy of 9L gliosarcoma with liposome-delivered photofrin. Photochem Photobiol 1997; 65:701-6. [PMID: 9114747 DOI: 10.1111/j.1751-1097.1997.tb01913.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The effect of Photofrin encapsulated in a liposome delivery vehicle for photodynamic therapy (PDT) of the 9L gliosarcoma and normal rat brain was tested. We hypothesized that the liposome vehicle enhances therapeutic efficacy, possibly by increasing tumor tissue concentration of Photofrin. Male Fisher rats bearing a 9L gliosarcoma were treated 16 days after intracerebral tumor implantation with either Photofrin in dextrose (n = 5) or Photofrin in liposome (n = 6). Nontumor-bearing animals were treated with Photofrin delivered either in dextrose (n = 4) or liposome (n = 4) vehicle. Tissue concentrations of Photofrin delivered either in dextrose (n = 4) or liposome (n = 4) vehicle were measured in tumor, brain adjacent to tumor and in normal brain tissue. Photofrin was administered (intraperitoneally) at a dose of 12.5 mg/kg and PDT (17 J/cm2 of 632 nm light at 100 mW/cm2) was performed 24 h after Photofrin administration. Brains were removed 24 h after PDT and stained with hematoxylin and eosin for analysis of cellular damage. The PDT using Photofrin in the liposome vehicle caused significantly more damage to the tumor (P < 0.001) than did PDT with Photofrin in dextrose. The PDT of tumor with Photofrin delivered in liposomes caused a 22% volume of cellular necrosis, while PDT of tumor with Photofrin delivered in dextrose caused only scattered cellular damage. Photofrin concentration in tumors was significantly higher (P = 0.021) using liposome (33.8 +/- 18.9 micrograms/g) compared to dextrose delivery (5.5 +/- 1.5 micrograms/g). Normal brain was affected similarly in both groups, with only scattered cellular necrosis. Our data suggest that the liposome vehicle enhances the therapeutic efficacy of PDT treatment of 9L tumors.
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Affiliation(s)
- F Jiang
- Henry Ford Health Sciences Center, Neurology Department, Detroit, MI 48202, USA
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40
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Fu Y, Sima PD, Kanofsky JR. Singlet-Oxygen Generation from Liposomes: A Comparison of 6β-Cholesterol Hydroperoxide Formation with Predictions from a One-Dimensional Model of Singlet-Oxygen Diffusion and Quenching. Photochem Photobiol 1996. [DOI: 10.1111/j.1751-1097.1996.tb03071.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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