51
|
Lamch Ł, Kulbacka J, Pietkiewicz J, Rossowska J, Dubińska-Magiera M, Choromańska A, Wilk KA. Preparation and characterization of new zinc(II) phthalocyanine — Containing poly(l-lactide)-b-poly(ethylene glycol) copolymer micelles for photodynamic therapy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 160:185-97. [DOI: 10.1016/j.jphotobiol.2016.04.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 04/07/2016] [Accepted: 04/11/2016] [Indexed: 11/26/2022]
|
52
|
Tetrakis{2-[N-((3-morpholino)propyl)carbamate]oxyethyl} zinc(II) phthalocyanine and its water soluble derivatives: Synthesis, photophysical, photochemical and protein binding properties. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
53
|
Carmello JC, Alves F, Ribeiro APD, Basso FG, de Souza Costa CA, Tedesco AC, Primo FL, Mima EG, Pavarina AC. In vivophotodynamic inactivation ofCandida albicansusing chloro-aluminum phthalocyanine. Oral Dis 2016; 22:415-22. [DOI: 10.1111/odi.12466] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/19/2016] [Accepted: 02/08/2016] [Indexed: 01/22/2023]
Affiliation(s)
- JC Carmello
- Department of Dental Materials and Prosthodontics; Araraquara Dental School; UNESP- Univ Estadual Paulista; Araraquara Brazil
| | - F Alves
- Department of Dental Materials and Prosthodontics; Araraquara Dental School; UNESP- Univ Estadual Paulista; Araraquara Brazil
| | - APD Ribeiro
- Department of Dentistry; School of Health Science; UnB - University of Brasília; Brasília Brazil
| | - FG Basso
- Department of Physiology and Pathology; Araraquara Dental School; UNESP- Univ Estadual Paulista; Araraquara Brazil
| | - CA de Souza Costa
- Department of Physiology and Pathology; Araraquara Dental School; UNESP- Univ Estadual Paulista; Araraquara Brazil
| | - AC Tedesco
- Center of Nanotechnology and Tissue Engineers; Photobiology and Photomedicine Research Group; FFCLRP-São Paulo University; Ribeirão Preto Brazil
| | - FL Primo
- Department of Bioprocess and Biotechnology; School of Pharmaceutical Sciences; UNESP- Univ Estadual Paulista; Araraquara Brazil
| | - EG Mima
- Department of Dental Materials and Prosthodontics; Araraquara Dental School; UNESP- Univ Estadual Paulista; Araraquara Brazil
| | - AC Pavarina
- Department of Dental Materials and Prosthodontics; Araraquara Dental School; UNESP- Univ Estadual Paulista; Araraquara Brazil
| |
Collapse
|
54
|
de Souza TD, Ziembowicz FI, Müller DF, Lauermann SC, Kloster CL, Santos RCV, Lopes LQS, Ourique AF, Machado G, Villetti MA. Evaluation of photodynamic activity, photostability and in vitro drug release of zinc phthalocyanine-loaded nanocapsules. Eur J Pharm Sci 2016; 83:88-98. [DOI: 10.1016/j.ejps.2015.12.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 11/25/2015] [Accepted: 12/04/2015] [Indexed: 01/09/2023]
|
55
|
Jayme CC, Calori IR, Tedesco AC. Spectroscopic analysis of aluminum chloride phthalocyanine in binary water/ethanol systems for the design of a new drug delivery system for photodynamic therapy cancer treatment. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 153:178-183. [PMID: 26311478 DOI: 10.1016/j.saa.2015.08.027] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 07/17/2015] [Accepted: 08/12/2015] [Indexed: 06/04/2023]
Abstract
This study evaluated the behavior of aluminum chloride phthalocyanine in a binary water/ethanol mixture using electronic absorption spectroscopy and static and time-resolved fluorescence spectroscopy. The electronic absorption spectra, resonance light scattering and fluorescence quenching of aluminum chloride phthalocyanine in water/ethanol mixtures were studied at several concentrations. The electronic absorption spectra and fluorescence quenching changed significantly at approximately 50% water (v/v). Below 50% water, the dimerization constant values were negative (-2609.2 M(-1) and -506.5 M(-1) at 30% and 40% of water, respectively), indicating that the formation of aggregates under these conditions is not favored. However, at 50% water, the dimerization constant value was estimated to be 559.7 M(-1), which indicates the presence of dimers. Above 60% water, the aggregation process was responsible for the balance between large complexes (such as trimers, tetramers or oligomers) formed in the medium under these conditions. The appearance of new absorption bands at 387 nm and 802 nm and their bathochromic shift relative to the monomer bands suggested that some J-type aggregates form. These results are relevant to understanding the behavior and use of aluminum chloride phthalocyanine in the design of new drug delivery systems for clinical application in photodynamic therapy as a new approach to treat skin cancer.
Collapse
Affiliation(s)
- Cristiano Ceron Jayme
- Departamento de Química, Laboratório de Fotobiologia e Fotomedicina, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901 Ribeirão Preto, SP, Brazil.
| | - Italo Rodrigo Calori
- Departamento de Química, Laboratório de Fotobiologia e Fotomedicina, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901 Ribeirão Preto, SP, Brazil.
| | - Antonio Claudio Tedesco
- Departamento de Química, Laboratório de Fotobiologia e Fotomedicina, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, 14040-901 Ribeirão Preto, SP, Brazil.
| |
Collapse
|
56
|
Jadhao M, Mukherjee S, Joshi R, Kumar H, Ghosh SK. Aggregation–disaggregation pattern of photodynamically active ZnPcS4 and its interaction with DNA alkylating quinone: effect of micellar compactness and central metal ion. RSC Adv 2016. [DOI: 10.1039/c6ra13151d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The graphical abstract shows the aggregation–disaggregation pattern of ZnPcS4 in neutral and different cationic micelles and its enhanced interaction with a DNA alkylating quinone in a TTAB micellar medium.
Collapse
Affiliation(s)
- Manojkumar Jadhao
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - Soham Mukherjee
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - Ritika Joshi
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - Himank Kumar
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - Sujit Kumar Ghosh
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| |
Collapse
|
57
|
Effects of photodynamic therapy mediated by nanoemulsion containing chloro-aluminum phthalocyanine: a histologic and immunohistochemical study in human gingiva. Photodiagnosis Photodyn Ther 2015; 12:592-7. [DOI: 10.1016/j.pdpdt.2015.10.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 10/15/2015] [Accepted: 10/22/2015] [Indexed: 01/25/2023]
|
58
|
Ahmad I, Arsalan A, Ali SA, Sheraz MA, Ahmed S, Anwar Z, Munir I, Shah MR. Formulation and stabilization of riboflavin in liposomal preparations. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 153:358-66. [DOI: 10.1016/j.jphotobiol.2015.10.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Revised: 10/05/2015] [Accepted: 10/19/2015] [Indexed: 11/25/2022]
|
59
|
Feuser PE, Fernandes AC, Nele M, Viegas ADC, Ricci-Junior E, Tedesco AC, Sayer C, de Araújo PHH. Simultaneous encapsulation of magnetic nanoparticles and zinc phthalocyanine in poly(methyl methacrylate) nanoparticles by miniemulsion polymerization and in vitro studies. Colloids Surf B Biointerfaces 2015; 135:357-364. [DOI: 10.1016/j.colsurfb.2015.07.067] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 06/20/2015] [Accepted: 07/23/2015] [Indexed: 01/29/2023]
|
60
|
Weijer R, Broekgaarden M, Kos M, van Vught R, Rauws EA, Breukink E, van Gulik TM, Storm G, Heger M. Enhancing photodynamic therapy of refractory solid cancers: Combining second-generation photosensitizers with multi-targeted liposomal delivery. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2015. [DOI: 10.1016/j.jphotochemrev.2015.05.002] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
61
|
New peripherally and non-peripherally tetra-substituted water soluble zinc phthalocyanines: Synthesis, photophysics and photochemistry. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.02.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
62
|
Silva EPDO, Mittmann J, Ferreira VTP, Cardoso MAG, Beltrame M. Photodynamic effects of zinc phthalocyanines on intracellular amastigotes of Leishmania amazonensis and Leishmania braziliensis. Lasers Med Sci 2014; 30:347-54. [DOI: 10.1007/s10103-014-1665-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 09/17/2014] [Indexed: 12/22/2022]
|
63
|
da Silva JS, Junqueira HC, Ferreira TL. Effect of pH and dye concentration on the n-octanol/water distribution ratio of phenothiazine dyes: a microelectrode voltammetry study. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.08.094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
64
|
Castagnos P, Siqueira-Moura MP, Goto PL, Perez E, Franceschi S, Rico-Lattes I, Tedesco AC, Blanzat M. Catanionic vesicles charged with chloroaluminium phthalocyanine for topical photodynamic therapy. In vitro phototoxicity towards human carcinoma and melanoma cell lines. RSC Adv 2014. [DOI: 10.1039/c4ra04876h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
65
|
Akpe V, Vernet E, Madu C, Obirai JC, Brismar H. Understanding the Photochemical Pathway of In Vitro Target Delivery of Aluminium Phthalocyanine: A Mechanistic Approach Using Radical Reaction Chemistry. Chempluschem 2014. [DOI: 10.1002/cplu.201300402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Victor Akpe
- Department of Applied Physics, Royal Institute of Technology, 106 91 Stockholm (Sweden)
| | - Erik Vernet
- Department of Molecular Biotechnology, Royal Institute of Technology, 106 91 Stockholm (Sweden)
| | - Christian Madu
- Department of Chemistry, Collin College, Preston Ridge Campus, Frisco, TX 75035 (USA)
| | | | - Hjalmar Brismar
- Department of Applied Physics, Royal Institute of Technology, 106 91 Stockholm (Sweden)
| |
Collapse
|
66
|
Liu J, Li J, Zhang Z, Weng Y, Chen G, Yuan B, Yang K, Ma Y. Encapsulation of Hydrophobic Phthalocyanine with Poly( N-isopropylacrylamide)/Lipid Composite Microspheres for Thermo-Responsive Release and Photodynamic Therapy. MATERIALS (BASEL, SWITZERLAND) 2014; 7:3481-3493. [PMID: 28788630 PMCID: PMC5453233 DOI: 10.3390/ma7053481] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 03/26/2014] [Accepted: 04/21/2014] [Indexed: 12/18/2022]
Abstract
Phthalocyanine (Pc) is a type of promising sensitizer molecules for photodynamic therapy (PDT), but its hydrophobicity substantially prevents its applications. In this study, we efficiently encapsulate Pc into poly(N-isopropylacrylamide) (pNIPAM) microgel particles, without or with lipid decoration (i.e., Pc@pNIPAM or Pc@pNIPAM/lipid), to improve its water solubility and prevent aggregation in aqueous medium. The incorporation of lipid molecules significantly enhances the Pc loading efficiency of pNIPAM. These Pc@pNIPAM and Pc@pNIPAM/lipid composite microspheres show thermo-triggered release of Pc and/or lipid due to the phase transition of pNIPAM. Furthermore, in the in vitro experiments, these composite particles work as drug carriers for the hydrophobic Pc to be internalized into HeLa cells. After internalization, the particles show efficient fluorescent imaging and PDT effect. Our work demonstrates promising candidates in promoting the use of hydrophobic drugs including photosensitizers in tumor therapies.
Collapse
Affiliation(s)
- Jiaojiao Liu
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Jingliang Li
- Institute for Frontier Materials, Deakin University, Waurn Ponds, Vic 3216, Australia.
| | - Zexin Zhang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Yuyan Weng
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Gaojian Chen
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Bing Yuan
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Kai Yang
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Yuqiang Ma
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, Soochow University, Suzhou 215006, Jiangsu, China.
- National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, Jiangsu, China.
| |
Collapse
|
67
|
Muehlmann LA, Ma BC, Longo JPF, Almeida Santos MDFM, Azevedo RB. Aluminum-phthalocyanine chloride associated to poly(methyl vinyl ether-co-maleic anhydride) nanoparticles as a new third-generation photosensitizer for anticancer photodynamic therapy. Int J Nanomedicine 2014; 9:1199-213. [PMID: 24634582 PMCID: PMC3952896 DOI: 10.2147/ijn.s57420] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Photodynamic therapy is generally considered to be safer than conventional anticancer therapies, and it is effective against different kinds of cancer. However, its clinical application has been significantly limited by the hydrophobicity of photosensitizers. In this work, a system composed of the hydrophobic photosensitizer aluminum–phthalocyanine chloride (AlPc) associated with water dispersible poly(methyl vinyl ether-co-maleic anhydride) nanoparticles is described. AlPc was associated with nanoparticles produced by a method of solvent displacement. This system was analyzed for its physicochemical characteristics, and for its photodynamic activity in vitro in cancerous (murine mammary carcinoma cell lineage 4T1, and human mammary adenocarcinoma cells MCF-7) and noncancerous (murine fibroblast cell lineage NIH/3T3, and human mammary epithelial cell lineage MCF-10A) cell lines. Cell viability and the elicited mechanisms of cell death were evaluated after the application of photodynamic therapy. This system showed improved photophysical and photochemical properties in aqueous media in comparison to the free photosensitizer, and it was effective against cancerous cells in vitro.
Collapse
Affiliation(s)
- Luis Alexandre Muehlmann
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília/DF, Brazil
| | - Beatriz Chiyin Ma
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília/DF, Brazil
| | - João Paulo Figueiró Longo
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília/DF, Brazil
| | | | - Ricardo Bentes Azevedo
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasília, Brasília/DF, Brazil
| |
Collapse
|
68
|
Spectral properties and photophysical behaviour of water soluble cationic Mg(II) and Al(III) phthalocyanines. OPEN CHEM 2014. [DOI: 10.2478/s11532-013-0388-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractPeripherally and non-peripherally tetrasubstituted-[(N-methyl-2-pyridylthio)]phthalocyaninato magnesium (II) (5 and 6) and chloro aluminium (III) (7 and 8) tetraiodide have been synthesized and characterized. The photophysical properties of the complexes in dimethyl sulfoxide (DMSO) and aqueous medium in the presence and absence of cremophore EL have been studied. These complexes show high solubility in aqueous medium though they were aggregated. The triplet state quantum yields (FT) and the triplet lifetimes (tT) were found to be higher in DMSO with ΦT ranging from 0.32 to 0.51, while tT ranged from 282 to 622 ms in DMSO, compared to aqueous medium (pH 7.4 buffer) where ΦT ranged from 0.15 to 0.19 and tT from 26 to 35 ms. Addition of cremophore EL in aqueous solution resulted in partial disaggregation and increased photoactivity. The fluorescence lifetimes of the complexes showed strong dependence on their immediate environment. The ionic magnesium(II) and aluminium(III) phthalocyanines strongly bind to bovine serum albumin (BSA).
Collapse
|
69
|
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
| |
Collapse
|
70
|
Moeno S, Krause RWM, Ermilov EA, Kuzyniak W, Höpfner M. Synthesis and characterization of novel zinc phthalocyanines as potential photosensitizers for photodynamic therapy of cancers. Photochem Photobiol Sci 2014; 13:963-70. [DOI: 10.1039/c3pp50393c] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel water soluble zinc phthalocyanines (Pcs): tetramethyl tetrakis-2,(3)-[(4-methyl-2-pyridyloxy)phthalocyaninato] zinc(ii) (4) and tetrakis-2,(3)-[(3-carboxylicacid-6-sulfanylpyridine)phthalocyaninato] zinc(ii) (5) were synthesized and characterized.
Collapse
Affiliation(s)
- S. Moeno
- Department of Oral Biological Sciences
- School of Oral Health Sciences
- Faculty of Health Sciences
- University of the Witwatersrand
- Johannesburg, South Africa
| | - R. W. M. Krause
- Department of Chemistry
- Rhodes University
- Grahamstown 6140, South Africa
| | - E. A. Ermilov
- Institute of Physiology
- Charité-Universitätsmedizin Berlin
- 10117 Berlin, Germany
- Institute of Physics
- Humboldt University of Berlin
| | - W. Kuzyniak
- Institute of Physiology
- Charité-Universitätsmedizin Berlin
- 10117 Berlin, Germany
| | - M. Höpfner
- Institute of Physiology
- Charité-Universitätsmedizin Berlin
- 10117 Berlin, Germany
| |
Collapse
|
71
|
Phukan N, Baruah JB. Detection of Al3+ and Zn2+ ions by 2-(5-methylthiazol-2-yliminomethyl)phenol. INORG CHEM COMMUN 2013. [DOI: 10.1016/j.inoche.2013.09.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
72
|
Göksel M, Durmuş M, Atilla D. Amino-functionalized water-soluble zinc phthalocyanines: Synthesis, photophysical, photochemical and protein binding properties. J Photochem Photobiol A Chem 2013. [DOI: 10.1016/j.jphotochem.2013.05.017] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
73
|
Staicu A, Pascu A, Boni M, Pascu M, Enescu M. Photophysical study of Zn phthalocyanine in binary solvent mixtures. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
74
|
Siqueira-Moura MP, Franceschi-Messant S, Blanzat M, Ré MI, Perez E, Rico-Lattes I, Lattes A, Tedesco AC. Gelled oil particles: A new approach to encapsulate a hydrophobic metallophthalocyanine. J Colloid Interface Sci 2013; 401:155-60. [DOI: 10.1016/j.jcis.2013.03.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 03/13/2013] [Accepted: 03/14/2013] [Indexed: 10/27/2022]
|
75
|
Chloroaluminium phthalocyanine polymeric nanoparticles as photosensitisers: Photophysical and physicochemical characterisation, release and phototoxicity in vitro. Eur J Pharm Sci 2013; 49:371-81. [DOI: 10.1016/j.ejps.2013.03.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 03/17/2013] [Accepted: 03/20/2013] [Indexed: 11/20/2022]
|
76
|
Siqueira-Moura MP, Primo FL, Espreafico EM, Tedesco AC. Development, characterization, and photocytotoxicity assessment on human melanoma of chloroaluminum phthalocyanine nanocapsules. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:1744-52. [DOI: 10.1016/j.msec.2012.12.088] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 11/27/2012] [Accepted: 12/28/2012] [Indexed: 11/28/2022]
|
77
|
Topical photodynamic therapy using transfersomal aluminum phthalocyanine tetrasulfonate: in vitro and in vivo study. Lasers Med Sci 2013; 28:1353-61. [DOI: 10.1007/s10103-012-1256-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 12/21/2012] [Indexed: 10/27/2022]
|
78
|
Machado AHA, Soares PC, Da Silva NS, Moraes KC. Cellular and molecular studies of the initial process of the photodynamic therapy in HEp-2 cells using LED light source and two different photosensitizers. Cell Biol Int 2013; 33:785-95. [DOI: 10.1016/j.cellbi.2009.04.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Revised: 03/12/2009] [Accepted: 04/14/2009] [Indexed: 01/22/2023]
|
79
|
Kimani SG, Shmigol TA, Hammond S, Phillips JB, Bruce JI, MacRobert AJ, Malakhov MV, Golding JP. Fully protected glycosylated zinc (II) phthalocyanine shows high uptake and photodynamic cytotoxicity in MCF-7 cancer cells. Photochem Photobiol 2012; 89:139-49. [PMID: 22803957 DOI: 10.1111/j.1751-1097.2012.01204.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Phthalocyanine photosensitizers are effective in anticancer photodynamic therapy (PDT) but suffer from limited solubility, limited cellular uptake and limited selectivity for cancer cells. To improve these characteristics, we synthesized isopropylidene-protected and partially deprotected tetra β-glycosylated zinc (II) phthalocyanines and compared their uptake and accumulation kinetics, subcellular localization, in vitro photocytotoxicity and reactive oxygen species generation with those of disulfonated aluminum phthalocyanine. In MCF-7 cancer cells, one of the compounds, zinc phthalocyanine {4}, demonstrated 10-fold higher uptake, 5-fold greater PDT-induced cellular reactive oxygen species concentration and 2-fold greater phototoxicity than equimolar (9 μm) disulfonated aluminum phthalocyanine. Thus, isopropylidene-protected β-glycosylation of phthalocyanines provides a simple method of improving the efficacy of PDT.
Collapse
Affiliation(s)
- Stanley G Kimani
- Department of Life, Health and Chemical Sciences, The Open University, Milton Keynes, UK
| | | | | | | | | | | | | | | |
Collapse
|
80
|
Highly singlet oxygen generative water-soluble coumarin substituted zinc(II) phthalocyanine photosensitizers for photodynamic therapy. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.04.034] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
81
|
Aygun A, Torrey K, Kumar A, Stephenson LD. Investigation of Factors Affecting Controlled Release from Photosensitive DMPC and DSPC Liposomes. Appl Biochem Biotechnol 2012; 167:743-57. [DOI: 10.1007/s12010-012-9724-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2011] [Accepted: 04/30/2012] [Indexed: 10/28/2022]
|
82
|
Synthesis of new water soluble phthalocyanines and investigation of their photochemical, photophysical and biological properties. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.03.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
83
|
Seotsanyana-Mokhosi I, Nyokong T. Photophysical properties of a water-soluble adjacently substituted bisnaphthalophthalocyanine. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424605000599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spectral properties of a water soluble metal free tetracarboxyphenoxy bisnaphthalophthalocyanine (3) were studied in water and organic solvents. It was found that in protic solvents, complex 3 was highly aggregated. The surfactant, Triton X100, and bovine serum albumin (BSA) do not effect disaggregation while cetyl trimethylammonium chloride (CTAC) caused the molecule to disaggregate. The fluorescence quantum yields were higher in the presence of CTAC. Studying the interaction of BSA with complex 3 using fluorometry revealed that BSA is highly quenched by the latter. A 1:1 stoichiometric binding ratio between BSA and the Pc was found. Triplet quantum yields in water containing CTAC were higher than in organic solvents.
Collapse
Affiliation(s)
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| |
Collapse
|
84
|
Khene S, Ogunsipe A, Antunes E, Nyokong T. Microwave synthesis and photophysics of new tetrasulfonated tin(II) macrocycles. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s108842460700014x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This work reports on the microwave synthesis of tetrasulfonated tin phthalocyanine and tetrasulfonated tin α,β,γ-tetrabenzcorrole. The latter was only formed at low ratios (<1:8) of 4-sulfophthalic acid to urea. Both complexes are aggregated in aqueous media, but can be partly or fully disaggregated by the addition of Triton X-100. The α,β,γ-tetrabenzcorrole complex has lower triplet life times and yields, while the binding constant and quenching (of bovine serum albumin) constant are lower for α,β,γ-tetrabenzcorrole compared to tetrasulfonated tin phthalocyanine.
Collapse
Affiliation(s)
- Samson Khene
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Abimbola Ogunsipe
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
- Department of Chemistry, University of Lagos, Lagos, Nigeria
| | - Edith Antunes
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| |
Collapse
|
85
|
Ogunsipe A, Nyokong T, Durmuş M. Photophysical, photochemical and bovine serum albumin binding studies on water-soluble gallium(III) phthalocyanine derivatives. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424607000746] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spectral, photophysical, photochemical and bovine serum albumin binding studies on some gallium(III) derivatives - {1,(4)-(tetrapyridyloxyphthalocyaninato)gallium(III), (α GaPc ); 2,(3)-(tetrapyridyloxyphthalocyaninato)gallium(III), (β GaPc ); and their quaternized derivatives: Q α GaPc and Q β GaPc )} are hereby presented. β-Substituted complexes are more fluorescent, but show lower tendencies to undergo intersystem crossing than the α-substituted, as judged by their fluorescence and triplet quantum yield values. The quaternized derivatives ( QGaPc ) are water-soluble and non-aggregated, which makes them potential photosensitizers of choice for photodynamic therapy applications; these amphiphilic compounds also bind strongly to bovine serum albumin in 1:1 stoichiometries, and with binding constants ( Kb) in the order of 106M−1.
Collapse
Affiliation(s)
- Abimbola Ogunsipe
- Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa
- Department of Chemistry, University of Lagos, Lagos, Nigeria
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa
| | - Mahmut Durmuş
- Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa
- Gebze Institute of Technology, Department of Chemistry, PO Box 141, Gebze, 41400, Turkey
| |
Collapse
|
86
|
Rodrigues GB, Primo FL, Tedesco AC, Braga GUL. In vitro photodynamic inactivation of Cryptococcus neoformans melanized cells with chloroaluminum phthalocyanine nanoemulsion. Photochem Photobiol 2012; 88:440-7. [PMID: 22145636 DOI: 10.1111/j.1751-1097.2011.01055.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The selection of fungi resistant to currently used fungicides and the emergence of new pathogenic species make the development of alternative fungus-control techniques highly desirable. Photodynamic antimicrobial chemotherapy (PACT) is a promising method which combines a nontoxic photosensitizer (PS) with visible light to cause selective killing of microbial cells. The development of PACT to treat mycoses or kill fungi in the environment depends on identifying effective PS for the different pathogenic species and delivery systems able to expand and optimize their use. In the present study, the in vitro susceptibility of Cryptococcus neoformans melanized cells to the photodynamic effects of the PS agent ClAlPc in nanoemulsion (ClAlPc/NE) was examined. Cells were killed in a PS concentration- and light dose-dependent manner. Treatment with ClAlPc/NE, using PS concentrations (e.g. 4.5 μm) and light doses (e.g. 10 J cm(-2)) compatible with PACT, resulted in a reduction of up to 6 logs in survival. Washing the cells to remove unbound PS before light exposure did not inhibit fungal photodynamic inactivation. Internalization of ClAlPc by C. neoformans was confirmed by confocal fluorescence microscopy, and the degree of uptake was dependent on PS concentration.
Collapse
Affiliation(s)
- Gabriela B Rodrigues
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | | | | | | |
Collapse
|
87
|
Photodynamic therapy disinfection of carious tissue mediated by aluminum-chloride-phthalocyanine entrapped in cationic liposomes: an in vitro and clinical study. Lasers Med Sci 2011; 27:575-84. [DOI: 10.1007/s10103-011-0962-6] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 06/29/2011] [Indexed: 01/09/2023]
|
88
|
Esenpınar AA, Durmuş M, Bulut M. Photophysical, photochemical and BSA binding/BQ quenching properties of quaternizable coumarin containing water soluble zinc phthalocyanine complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 79:608-617. [PMID: 21536490 DOI: 10.1016/j.saa.2011.03.043] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2011] [Revised: 03/13/2011] [Accepted: 03/16/2011] [Indexed: 05/30/2023]
Abstract
The non-peripherally (np-QZnPc) and peripherally (p-QZnPc) tetrakis-[7-oxo-(3-[(2-diethylaminomethyliodide)ethyl)]-4-methylcoumarin]-phthalocyaninatozinc complexes have been prepared by quaternization of non-peripherally and peripherally tetrakis[7-oxo-(3-[(2-diethylamino)ethyl)]-methylcoumarin] phthalocyaninato zinc complexes with methyliodide in dimethylsulfoxide (DMSO). The new quaternized zinc phthalocyanine complex (np-QZnPc) has been characterized by elemental analysis, MALDI-TOF, IR and UV-vis spectral data. The photophysical and photochemical properties of the peripherally and non-peripherally quaternized tetrakis-3-[(2-diethylamino)ethyl]-7-oxo-4-methylcoumarin substituted zinc phthalocyanines are reported. The effects of the position of the substituents and the aggregation of the phthalocyanine molecules on the photophysical and photochemical properties are also investigated. General trends are described for photodegradation, singlet oxygen and fluorescence quantum yields, and fluorescence lifetimes for complexes np-ZnPc/p-ZnPc in DMSO and for complexes np-QZnPc/p-QZnPc in DMSO, phosphate buffered solution (PBS) and PBS+Triton-X 100 solutions. The fluorescence of the tetra-substituted quaternized zinc phthalocyanine complexes (np-QZnPc/p-QZnPc) are effectively quenched addition of 1,4-benzoquinone (BQ) and this study also presented the ionic zinc phthalocyanine complexes strongly bind to bovine serum albumin (BSA).
Collapse
|
89
|
Rossetti FC, Fantini MC, Carollo ARH, Tedesco AC, Lopes Badra Bentley MV. Analysis of Liquid Crystalline Nanoparticles by Small Angle X-Ray Diffraction: Evaluation of Drug and Pharmaceutical Additives Influence on the Internal Structure. J Pharm Sci 2011; 100:2849-57. [DOI: 10.1002/jps.22522] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Accepted: 01/27/2011] [Indexed: 11/07/2022]
|
90
|
Bıyıklıoğlu Z, Durmuş M, Kantekin H. Tetra-2-[2-(dimethylamino)ethoxy]ethoxy substituted zinc phthalocyanines and their quaternized analoques: Synthesis, characterization, photophysical and photochemical properties. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.05.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
91
|
Oliveira LT, Garcia GM, Kano EK, Tedesco AC, Mosqueira VCF. HPLC-FLD methods to quantify chloroaluminum phthalocyanine in nanoparticles, plasma and tissue: application in pharmacokinetic and biodistribution studies. J Pharm Biomed Anal 2011; 56:70-7. [PMID: 21596512 DOI: 10.1016/j.jpba.2011.04.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 04/12/2011] [Accepted: 04/16/2011] [Indexed: 10/24/2022]
Abstract
Analytical and bioanalytical methods of high-performance liquid chromatography with fluorescence detection (HPLC-FLD) were developed and validated for the determination of chloroaluminum phthalocyanine in different formulations of polymeric nanocapsules, plasma and livers of mice. Plasma and homogenized liver samples were extracted with ethyl acetate, and zinc phthalocyanine was used as internal standard. The results indicated that the methods were linear and selective for all matrices studied. Analysis of accuracy and precision showed adequate values, with variations lower than 10% in biological samples and lower than 2% in analytical samples. The recoveries were as high as 96% and 99% in the plasma and livers, respectively. The quantification limit of the analytical method was 1.12 ng/ml, and the limits of quantification of the bioanalytical method were 15 ng/ml and 75 ng/g for plasma and liver samples, respectively. The bioanalytical method developed was sensitive in the ranges of 15-100 ng/ml in plasma and 75-500 ng/g in liver samples and was applied to studies of biodistribution and pharmacokinetics of AlClPc.
Collapse
Affiliation(s)
- Líliam Teixeira Oliveira
- CiPharma-Programa de Pós-graduação em Ciências Farmacêuticas, Escola de Farmácia, Universidade Federal de Ouro Preto, Rua Costa Sena, 171-Centro, Ouro Preto 35400-000, Minas Gerais, MG, Brazil
| | | | | | | | | |
Collapse
|
92
|
Çamur M, Ahsen V, Durmuş M. The first comparison of photophysical and photochemical properties of non-ionic, ionic and zwitterionic gallium (III) and indium (III) phthalocyanines. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.02.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
93
|
Lebedeva N, Popova T, Kozbial M, Wszelaka-Rylik M, Gubarev Y, Gierycz P. Influence of complex formation with tetraantraquinoporphyrazines and tetrasulphophthalocyanine on thermal stability of bovine serum albumin. J PORPHYR PHTHALOCYA 2011. [DOI: 10.1142/s1088424611003185] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Interaction between bovine serum albumin (BSA) and tetraantraquinoporphyrazines (TAP) and tetrasulphophthalocyanine (Pc) aluminum hydroxide was studied by means of electron absorption spectroscopy, IR spectroscopy, fluorescence spectroscopy and differential scanning calorimetry. It was found that the complex formation of BSA with the TAPs results in increase of thermal stability of the protein while Pc does not have remarkable influence on the protein thermal denaturation.
Collapse
Affiliation(s)
- Natalia Lebedeva
- Institute of Solution Chemistry of Russian Academy of Science, Academicheskaya 1, Ivanovo 153045, Russian Federation
| | - Tatyana Popova
- Institute of Solution Chemistry of Russian Academy of Science, Academicheskaya 1, Ivanovo 153045, Russian Federation
| | - Malgorzata Kozbial
- Institute of Physical Chemistry of Polish Academy of Science, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Malgorzata Wszelaka-Rylik
- Institute of Physical Chemistry of Polish Academy of Science, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Yuri Gubarev
- Institute of Solution Chemistry of Russian Academy of Science, Academicheskaya 1, Ivanovo 153045, Russian Federation
| | - Pavel Gierycz
- Institute of Physical Chemistry of Polish Academy of Science, Kasprzaka 44/52, 01-224 Warsaw, Poland
| |
Collapse
|
94
|
Tuncel S, Dumoulin F, Gailer J, Sooriyaarachchi M, Atilla D, Durmuş M, Bouchu D, Savoie H, Boyle RW, Ahsen V. A set of highly water-soluble tetraethyleneglycol-substituted Zn(ii) phthalocyanines: synthesis, photochemical and photophysical properties, interaction with plasma proteins and in vitro phototoxicity. Dalton Trans 2011; 40:4067-79. [DOI: 10.1039/c0dt01260b] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
95
|
Garcia AM, Alarcon E, Muñoz M, Scaiano JC, Edwards AM, Lissi E. Photophysical behaviour and photodynamic activity of zinc phthalocyanines associated to liposomes. Photochem Photobiol Sci 2010; 10:507-14. [PMID: 21152616 DOI: 10.1039/c0pp00289e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phthalocyanines are macrocyclic compounds that can be employed as photosensitizers in the treatment of various infections and diseases, as well as in photodynamic therapy. Nevertheless, a disadvantage for the clinical application of these compounds is their strong tendency to form oligomers (especially dimers), a phenomenon that reduces their efficiency as photosensitizers. In the present contribution, we have studied the photophysical and photochemical properties of ZnPc and ZnF(16)Pc in an organic solvent (THF) and liposomal formulations (DMPC, DPPC and DSPC). Our results show that dye incorporation into liposomes decreases its aggregation degree, as revealed by absorption spectra, triplet quantum yield, and singlet oxygen quantum yield measurements. Additionally, we studied the photodynamic activity of both phthalocyanines in liposomal formulation on human cervical carcinoma (HeLa) cells. For ZnF(16)Pc the photophysical behavior and phototoxicity in vitro correlate with the aggregation degree. The dimers are not photoactive and the photochemistry of ZnF(16)Pc depends of the fraction present as monomer. On the other hand, ZnPc aggregation is minimal and its photophysical and photochemical properties are similar in the three liposomes studied. Nevertheless, its phototoxicity in vitro is liposome dependent.
Collapse
Affiliation(s)
- Angélica M Garcia
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | | | | | | | | |
Collapse
|
96
|
Moeno S, Nyokong T. An investigation of the behavior of quaternized peripherally tetra mercaptopyridine substituted metallophthalocyanines in the presence of quantum dots. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.08.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
97
|
Kalarical Janardhanan S, Narayan S, Abbineni G, Hayhurst A, Mao C. Architectonics of phage-liposome nanowebs as optimized photosensitizer vehicles for photodynamic cancer therapy. Mol Cancer Ther 2010; 9:2524-35. [PMID: 20807781 DOI: 10.1158/1535-7163.mct-10-0253] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Filamentous M13 phage can be engineered to display cancer cell-targeting or tumor-homing peptides through phage display. It would be highly desirable if the tumor-targeting phage can also carry anticancer drugs to deliver them to the cancer cells. We studied the evolution of structures of the complexes between anionic filamentous M13 phage and cationic serum-stable liposomes that encapsulate the monomeric photosensitizer zinc naphthalocyanine. At specific phage-liposome ratios, multiple phage nanofibers and liposomes are interwoven into a "nanoweb." The chemical and biological properties of the phage-liposome nanoweb were evaluated for possible application in drug delivery. This study highlights the ability of phage-liposome nanowebs to serve as efficient carriers in the transport of photosensitizers to cancer cells.
Collapse
|
98
|
Impact of photodynamic therapy on inflammatory cells during human chronic periodontitis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2010; 101:348-54. [PMID: 20813541 DOI: 10.1016/j.jphotobiol.2010.08.007] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Revised: 08/06/2010] [Accepted: 08/10/2010] [Indexed: 12/14/2022]
Abstract
The aim of this study was to evaluate the effects of the photodynamic therapy (PDT) on the inflammatory infiltrate and on the collagen network organization in human advanced chronic periodontitis. Two different drug delivery systems (DDS) were tested (liposomes and nanoemulsions) to determine if the effects of PDT could differ according to the DDS used. Sixteen patients presenting two teeth with chronic advanced periodontitis and important tooth mobility with clinical indication of extraction were included in the group liposomes (group L, n=8) or in the group nanoemulsions (group N, n=8) in order to compare the effects of each DDS. Seven days before extractions one tooth of each patient was treated with PDT using phthalocyanine derivatives as photosensitizers and the contralateral tooth was taken as control. In group L the density of gingival collagen fibers (66±19%) was significantly increased (p<0.02) when compared to controls (35±21%). Concerning the antigen-presenting cells, PDT had differential effects depending on the drug delivery system; the number of macrophages was significantly decreased (p<0.05) in group L while the number of Langerhans cells was significantly decreased in group N (p<0.02). These findings demonstrate that PDT presents an impact on gingival inflammatory phenomenon during chronic periodontitis and leads to a specific decrease of antigen-presenting cells populations according to the drug delivery system used.
Collapse
|
99
|
Photoinactivation of different human tumor cell lines and sheep red blood cells in vitro by liposome-bound Zn(II) Phthalocyanine: Effects of cholesterol. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2010; 100:92-9. [DOI: 10.1016/j.jphotobiol.2010.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2009] [Revised: 05/13/2010] [Accepted: 05/15/2010] [Indexed: 11/15/2022]
|
100
|
Photophysical properties of newly synthesized fluorinated zinc phthalocyanines in the presence of CdTe quantum dots and the accompanying energy transfer processes. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2009.12.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|