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Hu W, Wang D, Ma Q, Reinhart BJ, Zhang X, Huang J. The Impact of Axial Ligation on the Excited State Dynamics of Cobalt(II) Phthalocyanine. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2022. [DOI: 10.1016/j.jpap.2022.100132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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2
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Rusanov AI. On the Theory of Phthalocyanine Monomerization in Aqueous Surfactant Solutions. COLLOID JOURNAL 2021. [DOI: 10.1134/s1061933x21020095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Brozek-Pluska B, Jarota A, Kania R, Abramczyk H. Zinc Phthalocyanine Photochemistry by Raman Imaging, Fluorescence Spectroscopy and Femtosecond Spectroscopy in Normal and Cancerous Human Colon Tissues and Single Cells. Molecules 2020; 25:E2688. [PMID: 32531903 PMCID: PMC7321347 DOI: 10.3390/molecules25112688] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/08/2020] [Accepted: 06/09/2020] [Indexed: 01/01/2023] Open
Abstract
Photodynamic therapy is a clinically approved alternative method for cancer treatment in which a combination of nontoxic drugs known as photosensitizers and oxygen is used. Despite intensive investigations and encouraging results, zinc phthalocyanines (ZnPcs) have not yet been approved as photosensitizers for clinical use. Label-free Raman imaging of nonfixed and unstained normal and cancerous colon human tissues and normal human CCD18-Co and cancerous CaCo-2 cell lines, without and after adding ZnPcS4 photosensitizer, was analyzed. The biochemical composition of normal and cancerous colon tissues and colon cells without and after adding ZnPcS4 at the subcellular level was determined. Analyzing the fluorescence/Raman signals of ZnPcS4, we found that in normal human colon tissue samples, in contrast to cancerous ones, there is a lower affinity to ZnPcS4 phthalocyanine. Moreover, a higher concentration in cancerous tissue was concomitant with a blue shift of the maximum peak position specific for the photosensitizer from 691-695 nm to 689 nm. Simultaneously for both types of samples, the signal was observed in the monomer region, confirming the excellent properties of ZnPcS4 for photo therapy (PDT). For colon cell experiments with a lower concentration of ZnPcS4 photosensitizer, c = 1 × 10-6 M, the phthalocyanine was localized in mitochondria/lipid structures; for a higher concentration, c = 9 × 10-6 M, localization inside the nucleus was predominant. Based on time-resolved experiments, we found that ZnPcS4 in the presence of biological interfaces features longer excited-state lifetime photosensitizers compared to the aqueous solution and bare ZnPcS4 film on CaF2 substrate, which is beneficial for application in PDT.
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Affiliation(s)
- Beata Brozek-Pluska
- Laboratory of Laser Molecular Spectroscopy, Institute of Applied Radiation Chemistry, Lodz University of Technology, Wroblewskiego 15, 93-590 Lodz, Poland; (A.J.); (R.K.); (H.A.)
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Movchan TG, Chernyad’ev AY, Plotnikova EV, Tsivadze AY, Baulin VE. Disaggregation of Zinc Tetra(4-Carboxyphenoxy) Phthalocyaninate in Aqueous Solutions of Dodecyl-, Tetradecyl-, and Hexadecyltrimethylammonium Bromides at pH 6–9. COLLOID JOURNAL 2020. [DOI: 10.1134/s1061933x19060127] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Paula SA, Ferreira OAE, César PA. Determination of Imidacloprid Based on the Development of a Glassy Carbon Electrode Modified with Reduced Graphene Oxide and Manganese (II) Phthalocyanine. ELECTROANAL 2019. [DOI: 10.1002/elan.201900227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Santos Anna Paula
- Departamento de Ciências NaturaisUniversidade Federal de São João del-Rei, UFSJ São João del-Rei, MG CEP 36307–352 Brazil
| | - Oliveira Ana Elisa Ferreira
- Departamento de Ciências NaturaisUniversidade Federal de São João del-Rei, UFSJ São João del-Rei, MG CEP 36307–352 Brazil
| | - Pereira Arnaldo César
- Departamento de Ciências NaturaisUniversidade Federal de São João del-Rei, UFSJ São João del-Rei, MG CEP 36307–352 Brazil
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Thakur NS, Patel G, Kushwah V, Jain S, Banerjee UC. Self-Assembled Gold Nanoparticle–Lipid Nanocomposites for On-Demand Delivery, Tumor Accumulation, and Combined Photothermal–Photodynamic Therapy. ACS APPLIED BIO MATERIALS 2018; 2:349-361. [DOI: 10.1021/acsabm.8b00618] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Doustvandi MA, Mohammadnejad F, Mansoori B, Mohammadi A, Navaeipour F, Baradaran B, Tajalli H. The interaction between the light source dose and caspase-dependent and -independent apoptosis in human SK-MEL-3 skin cancer cells following photodynamic therapy with zinc phthalocyanine: A comparative study. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 176:62-68. [PMID: 28964887 DOI: 10.1016/j.jphotobiol.2017.09.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 09/03/2017] [Accepted: 09/21/2017] [Indexed: 12/12/2022]
Abstract
The aim of this study is to determine the behavior of relative expression of Bcl-2, caspase-8, caspase-9, and caspase-3 genes of/in SK-MEL-3 cancer cells and explore molecular mechanisms responsible for the apoptosis response during an in vitro photodynamic therapy (PDT) with Zinc Phthalocyanine (ZnPc) using different doses of the light source. In this study, firstly the cytotoxic effects of ZnPc-PDT on SK-MEL-3 cells were evaluated. By irradiating the laser, ZnPc induced a significant amount of apoptosis on SK-MEL-3 cells in three IC50s including 0.064±0.01, 0.043±0.01, and 0.036±0.01μg/mL at the doses of 8, 16, and 24J/cm2, respectively. Moreover, flow cytometry and QRT-PCR experiments were done. The high percentage of apoptotic cells was seen in the early apoptosis stage. The expression of Bcl-2 and caspase-8 genes at all doses of laser experienced an obvious reduction in comparison to the control group. On the other hand, although the expression of caspase-9 and caspase-3 genes remains almost constant at 8J/cm2, but they faced an increment at 16 and 24J/cm2 doses. These data reveal caspase-dependent apoptosis in high and caspase-independent apoptosis in low doses of laser. Based on the results of present work, it can be suggested that the dose of the light source is a key factor in induction of caspase-dependent and caspase-independent apoptosis pathways following PDT.
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Affiliation(s)
| | | | - Behzad Mansoori
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Mohammadi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Habib Tajalli
- Research Institute for Applied Physics and Astronomy, University of Tabriz, Tabriz, Iran.
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Navaeipour F, Afsharan H, Tajalli H, Mollabashi M, Ranjbari F, Montaseri A, Rashidi MR. Effects of continuous wave and fractionated diode laser on human fibroblast cancer and dermal normal cells by zinc phthalocyanine in photodynamic therapy: A comparative study. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 161:456-62. [DOI: 10.1016/j.jphotobiol.2016.06.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 06/10/2016] [Indexed: 12/19/2022]
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9
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Li XS, Ke MR, Zhang MF, Tang QQ, Zheng BY, Huang JD. A non-aggregated and tumour-associated macrophage-targeted photosensitiser for photodynamic therapy: a novel zinc(ii) phthalocyanine containing octa-sulphonates. Chem Commun (Camb) 2015; 51:4704-7. [DOI: 10.1039/c4cc09934f] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel non-aggregated zinc(ii) phthalocyanine bearing octa-sulphonates has been prepared which exhibits specific affinity to macrophages via the scavenger receptor-A, and can selectively accumulate in tumour site.
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Affiliation(s)
- Xing-Shu Li
- College of Chemistry
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- China
| | - Mei-Rong Ke
- College of Chemistry
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- China
| | - Miao-Fen Zhang
- College of Chemistry
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- China
| | - Qing-Qing Tang
- College of Chemistry
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- China
| | - Bi-Yuan Zheng
- College of Chemistry
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- China
| | - Jian-Dong Huang
- College of Chemistry
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350116
- China
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Kawai C, Araújo-Chaves JC, Magrini T, Sanches COCC, Pinto SMS, Martinho H, Daghastanli N, Nantes IL. Photodamage in a mitochondrial membrane model modulated by the topology of cationic and anionic meso-tetrakis porphyrin free bases. Photochem Photobiol 2014; 90:596-608. [PMID: 24351019 DOI: 10.1111/php.12228] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 12/09/2013] [Indexed: 11/30/2022]
Abstract
The photodynamic effects of the cationic TMPyP (meso-tetrakis [N-methyl-4-pyridyl]porphyrin) and the anionic TPPS4 (meso-tetrakis[4-sulfonatophenyl]porphyrin) against PC/CL phosphatidylcholine/cardiolipin (85/15%) membranes were probed to address the influence of phorphyrin binding on lipid damage. Electronic absorption spectroscopy and zeta potential measurements demonstrated that only TMPyP binds to PC/CL large unilamellar vesicles (LUVs). The photodamage after irradiation with visible light was analyzed by dosages of lipid peroxides (LOOH) and thiobarbituric reactive substance and by a contrast phase image of the giant unilamellar vesicles (GUVs). Damage to LUVs and GUVs promoted by TMPyP and TPPS4 were qualitatively and quantitatively different. The cationic porphyrin promoted damage more extensive and faster. The increase in LOOH was higher in the presence of D2O, and was impaired by sodium azide and sorbic acid. The effect of D2O was higher for TPPS4 as the photosensitizer. The use of DCFH demonstrated that liposomes prevent the photobleaching of TMPyP. The results are consistent with a more stable TMPyP that generates long-lived singlet oxygen preferentially partitioned in the bilayer. Conversely, TPPS4 generates singlet oxygen in the bulk whose lifetime is increased in D2O. Therefore, the affinity of the porphyrin to the membrane modulates the rate, type and degree of lipid damage.
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Affiliation(s)
- Cintia Kawai
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC, Santo André, SP, Brazil
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Affiliation(s)
- IAN J. MACDONALD
- Photodynamic Therapy Center, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
| | - THOMAS J. DOUGHERTY
- Photodynamic Therapy Center, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
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Dixon DW, Gill AF, Sook BR. Characterization of sulfonated phthalocyanines by mass spectrometry and capillary electrophoresis. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424604000672] [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
We report the characterization of sulfonated phthalocyanines using capillary electrophoresis and mass spectrometry. Derivatives investigated included the copper, cobalt, zinc and metal-free sulfonated phthalocyanines. In general, sulfonated phthalocyanines were found as aggregates in capillary electrophoresis separations, even at low concentration. Separations were much better at pH 9.0 than at pH 2.5. The addition of β-cyclodextrin did not alter the electropherograms significantly. The electropherograms of commercially available copper phthalocyanine-3,4',4″,4‴-tetrasulfonic acid and 4,4',4″,4‴-tetrasulfonic acid were very different, consistent with the latter compound having a structure that is not fully sulfonated. Matrix-assisted laser desorption/ionization (MALDI) and electrospray ionization (ESI) were used to characterize the sulfonated phthalocyanines. In general, MALDI gave better results than ESI. Mass spectral evidence was obtained for a pentasulfonated species of both the metal-free phthalocyanine and zinc phthalocyanine when these species were made by sulfonation of the metal-free phthalocyanine (followed by zinc insertion in the latter case). Sulfonated tetraphenylporphyrin derivatives were used as standards for mass spectrometry and to estimate the effect of net charge on the capillary electrophoresis migration time for sulfonated tetrapyrroles. Clean separation of the sulfonated tetraphenylporphyrin derivatives [5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPPS4), 5,10,15-tris(4-sulfonatophenyl)-20-phenylporphyrin (TPPS3) and 5,10-bis(4-sulfonatophenyl)-15,20-diphenylporphyrin (TPPS2a)] was observed by capillary electrophoresis.
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Affiliation(s)
- Dabney W. Dixon
- Department of Chemistry, Box 4098, Georgia State University, Atlanta, GA 30303-4098, USA
| | - Anila F. Gill
- Department of Chemistry, Box 4098, Georgia State University, Atlanta, GA 30303-4098, USA
| | - Brian R. Sook
- Department of Chemistry, Box 4098, Georgia State University, Atlanta, GA 30303-4098, USA
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Rossetti FC, Lopes LB, Carollo ARH, Thomazini JA, Tedesco AC, Bentley MVLB. A delivery system to avoid self-aggregation and to improve in vitro and in vivo skin delivery of a phthalocyanine derivative used in the photodynamic therapy. J Control Release 2011; 155:400-8. [DOI: 10.1016/j.jconrel.2011.06.034] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 06/01/2011] [Accepted: 06/18/2011] [Indexed: 12/26/2022]
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Guo X, Guo B, Sun X, Zhang Q, Shi T. Preparation of Novel Silica Nanoparticles with Controllable Fluorescence Intensity from Porphyrin-Bridged Silsesquioxane. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201190091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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15
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Zhao Y, Fan H, Li W, Bi L, Wang D, Wu L. Incorporation of polyoxotungstate complexes in silica spheres and in situ formation of tungsten trioxide nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:14894-14900. [PMID: 20715875 DOI: 10.1021/la102491a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this paper, we demonstrated a new convenient route for in situ fabrication of well separated small sized WO(3) nanoparticles in silica spheres, through a predeposition of surfactant encapsulated polyoxotungates as tungsten source, and followed by a calcination process. In a typical procedure, selected polyoxotungates with different charges were enwrapped with dioctadecyldimethylammonium cations through electrostatic interaction. Elemental analysis, thermogravimetric analysis, and spectral characterization confirmed the formation of prepared complexes with the anticipated chemical structure. The complexes were then phase-transferred into aqueous solution that predissolved surfactant cetyltrimethylammonium bromide, and finally incorporated into silica spheres through a joint sol-gel reaction with tetraethyl orthosilicate in a well dispersed state under the protection of organic layer for polyoxotungates from the alkaline reaction condition. Transmission electron microscopic images illustrated the well dispersed WO(3) nanoparticles in the size range of ca. 2.2 nm in the silica spheres after the calcination at 465 °C. The sizes of both the silica spheres and WO(3) nanoparticles could be adjusted independently through changing the doping content to a large extent. Meanwhile, the doped polyoxotungate complexes acted as the template for the mesoporous structure in silica spheres after the calcination. Along with the increase of doping content and surfactant, the mesopore size changed little (2.0-2.9 nm), but the specific surface areas increased quite a lot. Importantly, the WO(3)-nanoparticle-doped silica spheres displayed an interesting photovoltaic property, which is favorable for the funtionalization of these nanomaterials.
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Affiliation(s)
- Yuanyuan Zhao
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, PR China
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Savolainen J, van der Linden D, Dijkhuizen N, Herek JL. Characterizing the functional dynamics of zinc phthalocyanine from femtoseconds to nanoseconds. J Photochem Photobiol A Chem 2008. [DOI: 10.1016/j.jphotochem.2007.11.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Borgatti-Jeffreys A, Hooser SB, Miller MA, Lucroy MD. Phase I clinical trial of the use of zinc phthalocyanine tetrasulfonate as a photosensitizer for photodynamic therapy in dogs. Am J Vet Res 2007; 68:399-404. [PMID: 17397295 DOI: 10.2460/ajvr.68.4.399] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the threshold for acute toxicosis of parenterally administered zinc phthalocyanine tetrasulfonate (ZnPcS(4)), a candidate second-generation photosensitizer, in mice and evaluate the compound's safety in a phase I clinical trial of ZnPcS(4)-based photodynamic therapy (PDT) in pet dogs with naturally occurring tumors. ANIMALS Male Swiss-Webster mice and client-owned dogs with naturally occurring neoplasms. PROCEDURES For the study of acute toxicosis, mice were given graded doses of ZnPcS(4). To determine safety, a rapid-titration phase I clinical trial of ZnPcS(4)-based PDT in tumor-bearing dogs was conducted. RESULTS In mice, administration of >or= 100 mg of ZnPcS(4)/kg resulted in renal tubular necrosis 24 hours after IP injection. In tumor-bearing dogs, ZnPcS(4) doses <or= 4 mg/kg induced no signs of toxicosis and resulted in partial to complete tumor responses in 10 of 12 dogs 4 weeks after PDT. Tumor remission was observed with ZnPcS(4) doses as low as 0.25 mg/kg. CONCLUSIONS AND CLINICAL RELEVANCE A conservative starting dose of ZnPcS(4) was arrived at on the basis of mouse toxicosis findings. Zinc phthalocyanine tetrasulfonate-based PDT was tolerated well by all dogs and warrants further study. The identification of the maximum tolerated dose through traditional phase I clinical trials may be unnecessary for evaluating novel PDT protocols.
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Affiliation(s)
- Antonella Borgatti-Jeffreys
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA
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Rozanova Torshina N, Zhang JZ, Heck DE. Catalytic therapy of cancer with porphyrins and ascorbate. Cancer Lett 2007; 252:216-24. [PMID: 17275175 DOI: 10.1016/j.canlet.2006.12.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2006] [Revised: 12/19/2006] [Accepted: 12/20/2006] [Indexed: 10/23/2022]
Abstract
Catalytic therapy (CT) is a cancer treatment modality based on the generation of reactive oxygen species (ROS) using a combination of substrate molecules and a catalyst. The most frequently used substrate and catalyst pair is ascorbate/Co phthalocyanine (PcCo). In the present study, porphyrins containing transition metal ions as catalysts in place of PcCo were studied. Porphyrins that are expected to be as efficient as phthalocyanines, but may have fewer side effects, were analyzed. ROS production through the combined use of ascorbate and porphyrins decreased the number of breast cancer tumor cells by 20-40% after a single in vitro treatment, as compared to control cells. Treatment with ascorbate in conjunction with porphyrins stimulated apoptosis and disrupted the cell cycle. These treatments enhanced apoptosis by 20-40% when compared to treatments with ascorbate and porphyrins. In addition, the number of cells accumulating in the sub G0/G1 stage of the cell cycle increased from 3- to 10-fold, potentially reflecting that the treatment was highly effective in inducing DNA damage in the tumor cells, suggesting that porphyrins may be beneficial as a CT catalyst in the treatment of cancer.
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Ribeiro JN, Jorge RA, Silva ARD, Flores AV, Ronchi LM, Tedesco AC. Avaliação da atividade fotodinâmica de porfirinas para uso em terapia fotodinâmica através da fotoxidação de triptofano. ECLÉTICA QUÍMICA 2007. [DOI: 10.1590/s0100-46702007000100001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Neste trabalho investigou-se a atividade fotodinâmica de octaetilporfirina (OEP), octaetilporfirina de vanadil (VOOEP) e meso-tetramesitilporfirina (m-TMP). Este estudo foi realizado através da determinação da constante da velocidade de fotoxidação (k f) do aminoácido triptofano (Trp). A participação do oxigênio singlete nesta fotoxidação foi determinada através da adição de azida de sódio e água deuterada no meio de reação. Os valores de k f/10-4s-1 para a fotoxidação de Trp demonstraram que OEP (2,80 ± 0.05) é mais eficiente do que m-TMP (1,62 ± 0,07) e VOOEP (0,81 ± 0,08). Os valores de k f foram menores na presença de azida de sódio e maiores na presença de água deuterada, sugerindo que o oxigênio singlete é o responsável pela atividade fotodinâmica de OEP, VOOEP e m-TMP. Estes resultados sugerem também que as diferenças na atividade fotodinâmica entre as porfirinas podem ser associadas com as diferenças na estrutura molecular das mesmas. A presença do grupo vanadil (V=O) interfere claramente na atividade fotodinâmica de OEP causando considerável redução na sua eficiência.
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Affiliation(s)
| | | | | | | | | | - A. C. Tedesco
- Centro Federal de Educação Tecnológica do Espírito Santo
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Abramczyk H, Brozek-Płuska B, Kurczewski K, Kurczewska M, Szymczyk I, Krzyczmonik P, Błaszczyk T, Scholl H, Czajkowski W. Femtosecond Transient Absorption, Raman, and Electrochemistry Studies of Tetrasulfonated Copper Phthalocyanine in Water Solutions. J Phys Chem A 2006; 110:8627-36. [PMID: 16836423 DOI: 10.1021/jp060322a] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ultrafast time-resolved electronic spectra of the primary events induced in the copper tetrasulfonated phthalocyanine Cu(tsPc)4-) in aqueous solution has been measured by femtosecond pump-probe transient absorption spectroscopy. The primary events initiated by the absorption of a photon occurring within the femtosecond time scale are discussed on the basis of the electron transfer mechanism between the adjacent phthalocyanine rings proposed recently in our laboratory. The femtosecond transient absorption results are compared with the low temperature emission spectra obtained with Raman spectroscopy and the voltammetric curves.
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Affiliation(s)
- H Abramczyk
- Institute of Applied Radiation Chemistry, The Faculty of Chemistry, Technical University of Łódź, Wroblewskiego 15, 93-590 Łódź, Poland
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Metal tetrasulfophthalocyanines catalysed co-oxidation of phenol with 4-aminoantipyrine using hydrogen peroxide as oxidant in aqueous microheterogeneous system. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/j.molcata.2005.09.045] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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22
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Mir Y, Houde D, van Lier JE. Two-photon absorption of copper tetrasulfophthalocyanine induces phototoxicity towards Jurkat cells in vitro. Photochem Photobiol Sci 2006; 5:1024-30. [PMID: 17077898 DOI: 10.1039/b607113a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The feasibility to induce oxygen-independent tumour cell kill by two-photon excitation of copper tetrasulfophthalocyanine (CuPcS4) was studied in Jurkat cells in vitro. Following incubation with CuPcS4 cells were transferred to a closed cuvette and irradiated with 532 nm pulsed-laser or 680 nm continuous-laser light to evaluate the effect of either two- or one-photon excitation, respectively. Cell survival was measured using MTT and Trypan Blue exclusion tests. Cell viability decreased 10-20% following two-photon excitation while one-photon illumination did not affect cell survival. These data confirm that two-photon excitation of CuPcS4 to the upper excited triplet state results in the formation of toxic species suggesting its potential use as a sensitizer for the photodynamic treatment of poorly oxygenated tumours.
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Affiliation(s)
- Youssef Mir
- Department of Nuclear Medicine and Radiobiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Québec, CanadaJ1H 5N4
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Liu W, Jensen TJ, Fronczek FR, Hammer RP, Smith KM, Vicente MGH. Synthesis and Cellular Studies of Nonaggregated Water-Soluble Phthalocyanines. J Med Chem 2005; 48:1033-41. [PMID: 15715471 DOI: 10.1021/jm049375b] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Water-soluble phthalocyanines are promising photosensitizers for application in cancer therapy and in the photoinactivation of viruses. The water-soluble zinc(II) phthalocyanines 5 and 6 were synthesized by converting the corresponding ester derivative 4 into the sodium carboxylate and carboxylic acid species. Compound 5 can be solubilized in water as a monomeric species, as demonstrated by UV/vis and fluorescence spectroscopy. These compounds were characterized by analytical and spectroscopic methods and, in the case of 4, by X-ray crystallography. The water-soluble phthalocyanines were found to have low dark cytotoxicity toward V79 hamster fibroblasts and human HEp2 cells, to be phototoxic at low light and drug doses, to be taken up by cells in culture, and to localize intracellularly, mainly in the cell lysosomes. Conjugation of the anionic phthalocyanines with positively charged LipoGen liposomes resulted in effective delivery of these compounds into the nuclei of cells. It is concluded that these highly water-soluble phthalocyanines are promising sensitizers for the photodynamic therapy of tumors.
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Affiliation(s)
- Wei Liu
- Louisiana State University, Department of Chemistry, Baton Rouge, Louisiana 70803, USA
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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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Fournier M, Pépin C, Houde D, Ouellet R, van Lier JE. Ultrafast studies of the excited-state dynamics of copper and nickel phthalocyanine tetrasulfonates: potential sensitizers for the two-photon photodynamic therapy of tumors. Photochem Photobiol Sci 2004; 3:120-6. [PMID: 14768627 DOI: 10.1039/b302787b] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to evaluate the potential of copper and nickel phthalocyanine tetrasulfonates as sensitizers for two-photon photodynamic therapy, we conducted kinetic femtosecond measurements of transient absorption and bleaching of their excited state dynamics in aqueous solution. Samples were pumped with 620 nm and 310 nm laser light, which allowed us to study relaxation processes from both the first and second singlet (or doublet for the copper phthalocyanine) excited states. A second excitation from the first excited triplet state, approximately 685 and 105 ps after the first excitation for copper and nickel phthalocyanine tetrasulfonate respectively, was the most efficient way to bring the molecules to an upper triplet state. Presumably this highest triplet state can inflict molecular damage on adjacent biomolecules int eh absence of oxygen, resulting in the desired cytotoxic cellular response. Transient absorption spectra at different fixed delays indicate that optimum efficiency would require that the second photon has a wavelength of approximately 750 nm.
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Affiliation(s)
- Michel Fournier
- Départment de médicine nucléaire et radiobiologie, Faculté de médicine, Université de Sherbrooke, Sherbrooke, Canada
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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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Rokitskaya TI, Block M, Antonenko YN, Kotova EA, Pohl P. Photosensitizer binding to lipid bilayers as a precondition for the photoinactivation of membrane channels. Biophys J 2000; 78:2572-80. [PMID: 10777753 PMCID: PMC1300846 DOI: 10.1016/s0006-3495(00)76801-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The photodynamic activity of sulfonated aluminum phthalocyanines (AlPcS(n), 1 </= n </= 4) was found to correlate with their affinity for membrane lipids. Adsorbing to the surface of large unilamellar vesicles (LUVs), aluminum phthalocyanine disulfonate induced the highest changes in their electrophoretic mobility. AlPcS(2) was also most efficient in mediating photoinactivation of gramicidin channels, as revealed by measurements of the electric current across planar lipid bilayers. The increase in the degree of sulfonation of phthalocyanine progressively reduced its affinity for the lipid bilayer as well as its potency of sensitizing gramicidin channel photoinactivation. The portion of photoinactivated gramicidin channels, alpha, increased with rising photosensitizer concentration up to some optimum. The concentration at which alpha was at half-maximum amounted to 80 nM, 30 nM, 200 nM, and 2 microM for AlPcS(1), AlPcS(2), AlPcS(3), and AlPcS(4), respectively. At high concentrations alpha was found to decrease, which was attributed to quenching of reactive oxygen species and self-quenching of the photosensitizer triplet state by its ground state. Fluoride anions were observed to inhibit both AlPcS(n) (2 </= n </= 4) binding to LUVs and sensitized photoinactivation of gramicidin channels. It is concluded that photosensitizer binding to membrane lipids is a prerequisite for the photodynamic inactivation of gramicidin channels.
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Affiliation(s)
- T I Rokitskaya
- A. N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Moscow 119899, Russia
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Li XY, He X, Ng ACH, Wu C, Ng DKP. Influence of Surfactants on the Aggregation Behavior of Water-Soluble Dendritic Phthalocyanines. Macromolecules 2000. [DOI: 10.1021/ma9919110] [Citation(s) in RCA: 112] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xi-you Li
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China, Institute of Physical Chemistry, Peking University, Beijing 100871, China, and The Open Laboratory of Bond Selective Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China
| | - Xu He
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China, Institute of Physical Chemistry, Peking University, Beijing 100871, China, and The Open Laboratory of Bond Selective Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China
| | - Anthony C. H. Ng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China, Institute of Physical Chemistry, Peking University, Beijing 100871, China, and The Open Laboratory of Bond Selective Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China
| | - Chi Wu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China, Institute of Physical Chemistry, Peking University, Beijing 100871, China, and The Open Laboratory of Bond Selective Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China
| | - Dennis K. P. Ng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China, Institute of Physical Chemistry, Peking University, Beijing 100871, China, and The Open Laboratory of Bond Selective Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei, Anhui, China
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