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Sailaja STN, Maisuls I, Hepp A, Brünink D, Doltsinis NL, Faust A, Hermann S, Strassert CA. Dual Emissive Zn(II) Naphthalocyanines: Synthesis, Structural and Photophysical Characterization with Theory-Supported Insights towards Soluble Coordination Compounds with Visible and Near-Infrared Emission. Int J Mol Sci 2024; 25:2605. [PMID: 38473852 DOI: 10.3390/ijms25052605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/09/2024] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Metal phthalocyaninates and their higher homologues are recognized as deep-red luminophores emitting from their lowest excited singlet state. Herein, we report on the design, synthesis, and in-depth characterization of a new class of dual-emissive (visible and NIR) metal naphthalocyaninates. A 4-N,N-dimethylaminophen-4-yl-substituted naphthalocyaninato zinc(II) complex (Zn-NMe2Nc) and the derived water-soluble coordination compound (Zn-NMe3Nc) exhibit a near-infrared fluorescence from the lowest ligand-centered state, along with a unique push-pull-supported luminescence in the visible region of the electromagnetic spectrum. An unprecedentedly broad structural (2D-NMR spectroscopy and mass spectrometry) as well as photophysical characterization (steady-state state and time-resolved photoluminescence spectroscopy) is presented. The unique dual emission was assigned to two independent sets of singlet states related to the intrinsic Q-band of the macrocycle and to the push-pull substituents in the molecular periphery, respectively, as predicted by TD-DFT calculations. In general, the elusive chemical aspects of these macrocyclic compounds are addressed, involving both reaction conditions, thorough purification, and in-depth characterization. Besides the fundamental aspects that are investigated herein, the photoacoustic properties were exemplarily examined using phantom gels to assess their tomographic imaging capabilities. Finally, the robust luminescence in the visible range arising from the push-pull character of the peripheral moieties demonstrated a notable independence from aggregation and was exemplarily implemented for optical imaging (FLIM) through time-resolved multiphoton micro(spectro)scopy.
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Affiliation(s)
- Sidharth Thulaseedharan Nair Sailaja
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Iván Maisuls
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Dana Brünink
- Institute for Solid State Theory and Center for Multiscale Theory and Computation, Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Nikos L Doltsinis
- Institute for Solid State Theory and Center for Multiscale Theory and Computation, Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Andreas Faust
- European Institute for Molecular Imaging, Universität Münster, Röntgenstraße 16, 48149 Münster, Germany
- Department of Nuclear Medicine, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany
| | - Sven Hermann
- European Institute for Molecular Imaging, Universität Münster, Röntgenstraße 16, 48149 Münster, Germany
- Department of Nuclear Medicine, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany
| | - Cristian A Strassert
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
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Rennie CC, Edkins RM. Targeted cancer phototherapy using phthalocyanine-anticancer drug conjugates. Dalton Trans 2022; 51:13157-13175. [PMID: 36018269 DOI: 10.1039/d2dt02040h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phototherapy, the use of light to selectively ablate cancerous tissue, is a compelling prospect. Phototherapy is divided into two major domains: photodynamic and photothermal, whereby photosensitizer irradiation generates reactive oxygen species or heat, respectively, to disrupt the cancer microenvironment. Phthalocyanines (Pcs) are prominent phototherapeutics due to their desirable optical properties and structural versatility. Targeting of Pc photosensitizers historically relied on the enhanced permeation and retention effect, but the weak specificity engendered by this approach has hindered bench-to-clinic translation. To improve specificity, antibody and peptide active-targeting groups have been employed to some effect. An alternative targeting method exploits the binding of anticancer drugs to direct the photosensitizer close to essential cellular components, allowing for precise, synergistic phototherapy. This Perspective explores the use of Pc-drug conjugates as targeted anticancer phototherapeutic systems with examples of Pc-platin, Pc-kinase, and Pc-anthracycline conjugates discussed in detail.
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Affiliation(s)
- Christopher C Rennie
- WestCHEM Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK.
| | - Robert M Edkins
- WestCHEM Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK.
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Recent Progress in Phthalocyanine-Polymeric Nanoparticle Delivery Systems for Cancer Photodynamic Therapy. NANOMATERIALS 2021; 11:nano11092426. [PMID: 34578740 PMCID: PMC8469866 DOI: 10.3390/nano11092426] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 12/11/2022]
Abstract
This perspective article summarizes the last decade’s developments in the field of phthalocyanine (Pc)-polymeric nanoparticle (NP) delivery systems for cancer photodynamic therapy (PDT), including studies with at least in vitro data. Moreover, special attention will be paid to the various strategies for enhancing the behavior of Pc-polymeric NPs in PDT, underlining the great potential of this class of nanomaterials as advanced Pcs’ nanocarriers for cancer PDT. This review shows that there is still a lot of research to be done, opening the door to new and interesting nanodelivery systems.
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Vargas-Zúñiga GI, Kim HS, Li M, Sessler JL, Kim JS. Pyrrole-based photosensitizers for photodynamic therapy — a Thomas Dougherty award paper. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621300044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Photodynamic therapy (PDT) is a therapeutic modality that uses light to treat malignant or benign diseases. A photosensitizer, light, and oxygen are the three main components needed to generate a cytotoxic effect. Pyrrole-based photosensitizers have been widely used for PDT. Many of the photosensitizers within this class are macrocyclic. This is particularly true for systems that have received regulatory approval or been the subject of clinical trials. However, in recent years, a number of boron dipyrromethanes (BODIPY) have been studied as photosensitizers. Herein, we review examples of some of the most relevant pyrrole-based photosensitizers.
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Affiliation(s)
- Gabriela I. Vargas-Zúñiga
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th Street-A5300, Austin, TX 78712-1224, USA
| | - Hyeong Seok Kim
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Mingle Li
- Department of Chemistry, Korea University, Seoul 02841, Korea
| | - Jonathan L. Sessler
- Department of Chemistry, The University of Texas at Austin, 105 E. 24th Street-A5300, Austin, TX 78712-1224, USA
| | - Jong Seung Kim
- Department of Chemistry, Korea University, Seoul 02841, Korea
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Wang X, Luo D, Basilion JP. Photodynamic Therapy: Targeting Cancer Biomarkers for the Treatment of Cancers. Cancers (Basel) 2021; 13:cancers13122992. [PMID: 34203805 PMCID: PMC8232794 DOI: 10.3390/cancers13122992] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/07/2021] [Accepted: 06/14/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Photodynamic therapy (PDT) is a minimally invasive treatment option that can kill cancerous cells by subjecting them to light irradiation at a specific wavelength. The main problem related to most photosensitizers is the lack of tumor selectivity, which leads to undesired uptake in normal tissues resulting in side effects. Passive targeting and active targeting are the two strategies to improve uptake in tumor tissues. This review focused on active targeting and summarizes recent active targeting approaches in which highly potent photosensitizers are rendered tumor-specific by means of an appended targeting moiety that interacts with a protein unique to, or at least significantly more abundant on, tumor cell surfaces compared to normal cells. Abstract Photodynamic therapy (PDT) is a well-documented therapy that has emerged as an effective treatment modality of cancers. PDT utilizes harmless light to activate non- or minimally toxic photosensitizers to generate cytotoxic species for malignant cell eradication. Compared with conventional chemotherapy and radiotherapy, PDT is appealing by virtue of the minimal invasiveness, its safety, as well as its selectivity, and the fact that it can induce an immune response. Although local illumination of the cancer lesions renders intrinsic selectivity of PDT, most photosensitizers used in PDT do not display significant tumor tissue selectivity. There is a need for targeted delivery of photosensitizers. The molecular identification of cancer antigens has opened new possibilities for the development of effective targeted therapy for cancer patients. This review provides a brief overview of recent achievements of targeted delivery of photosensitizers to cancer cells by targeting well-established cancer biomarkers. Overall, targeted PDT offers enhanced intracellular accumulation of the photosensitizer, leading to improved PDT efficacy and reduced toxicity to normal tissues.
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Affiliation(s)
- Xinning Wang
- Department of Biomedical Engineering, Case Western Reserve University, 11100 Euclid Ave, Wearn Building B-49, Cleveland, OH 44106, USA
- Correspondence: (X.W.); (J.P.B.); Tel.: +216-844-4848 (X.W.); +216-983-3246 (J.P.B.); Fax: +216-844-4987 (X.W. & J.P.B.)
| | - Dong Luo
- Department of Radiology, Case Western Reserve University, 11100 Euclid Ave, Wearn Building B-44, Cleveland, OH 44106, USA;
| | - James P. Basilion
- Department of Biomedical Engineering, Case Western Reserve University, 11100 Euclid Ave, Wearn Building B-49, Cleveland, OH 44106, USA
- Department of Radiology, Case Western Reserve University, 11100 Euclid Ave, Wearn Building B-44, Cleveland, OH 44106, USA;
- Correspondence: (X.W.); (J.P.B.); Tel.: +216-844-4848 (X.W.); +216-983-3246 (J.P.B.); Fax: +216-844-4987 (X.W. & J.P.B.)
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Liu M, Li C. Recent Advances in Activatable Organic Photosensitizers for Specific Photodynamic Therapy. Chempluschem 2021; 85:948-957. [PMID: 32401421 DOI: 10.1002/cplu.202000203] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/05/2020] [Indexed: 12/18/2022]
Abstract
Photodynamic therapy is an alternative modality for the therapy of diseases such as cancer in a minimally invasive manner. The essential photosensitizer, which acts as a catalyst when absorbing light, converts oxygen into cytotoxic reactive oxygen species that ablate malignant cells through apoptosis and/or necrosis, destroy tumor microvasculature, and stimulate immunity. An activatable photosensitizer whose photoactivity could be turned on by a specific disease biomarker is capable of distinguishing healthy cells from diseased cells, thereby reducing off-target photodamage. In this Minireview, we highlight progress in activatable organic photosensitizers over the past five years, including: (i) biorthogonal activatable BODIPYs; (ii) activatable Se-rhodamine with single-cell resolution; (iii) silicon phthalocyanine targeting oxygen tension; (iv) general D-π-A scaffolds; and (v) AIEgens. The potential challenges and opportunities for developing new types of activatable organic photosensitizers to overcome the hypoxia dilemmas of photodynamic therapy are discussed.
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Affiliation(s)
- Ming Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin, 300071, P. R. China
| | - Changhua Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Key Laboratory of Functional Polymer Materials of Ministry of Education, Nankai University, Tianjin, 300071, P. R. China
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Mitra K, Hartman MCT. Silicon phthalocyanines: synthesis and resurgent applications. Org Biomol Chem 2021; 19:1168-1190. [DOI: 10.1039/d0ob02299c] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Their unique axial bonds and NIR optical properties have made silicon phthalocyanines (SiPcs) valuable compounds. Herein, we present key synthetic strategies and emerging applications of SiPcs over the past decade.
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Affiliation(s)
- Koushambi Mitra
- Department of Chemistry
- Virginia Commonwealth University
- Richmond
- USA
- Massey Cancer Center
| | - Matthew C. T. Hartman
- Department of Chemistry
- Virginia Commonwealth University
- Richmond
- USA
- Massey Cancer Center
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Das S, Tiwari M, Mondal D, Sahoo BR, Tiwari DK. Growing tool-kit of photosensitizers for clinical and non-clinical applications. J Mater Chem B 2020; 8:10897-10940. [PMID: 33165483 DOI: 10.1039/d0tb02085k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Photosensitizers are photosensitive molecules utilized in clinical and non-clinical applications by taking advantage of light-mediated reactive oxygen generation, which triggers local and systemic cellular toxicity. Photosensitizers are used for diverse biological applications such as spatio-temporal inactivation of a protein in a living system by chromophore-assisted light inactivation, localized cell photoablation, photodynamic and immuno-photodynamic therapy, and correlative light-electron microscopy imaging. Substantial efforts have been made to develop several genetically encoded, chemically synthesized, and nanotechnologically driven photosensitizers for successful implementation in redox biology applications. Genetically encoded photosensitizers (GEPS) or reactive oxygen species (ROS) generating proteins have the advantage of using them in the living system since they can be manipulated by genetic engineering with a variety of target-specific genes for the precise spatio-temporal control of ROS generation. The GEPS variety is limited but is expanding with a variety of newly emerging GEPS proteins. Apart from GEPS, a large variety of chemically- and nanotechnologically-empowered photosensitizers have been developed with a major focus on photodynamic therapy-based cancer treatment alone or in combination with pre-existing treatment methods. Recently, immuno-photodynamic therapy has emerged as an effective cancer treatment method using smartly designed photosensitizers to initiate and engage the patient's immune system so as to empower the photosensitizing effect. In this review, we have discussed various types of photosensitizers, their clinical and non-clinical applications, and implementation toward intelligent efficacy, ROS efficiency, and target specificity in biological systems.
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Affiliation(s)
- Suman Das
- Department of Biotechnology, Faculty of Life Sciences and Environment, Goa University, Taleigao Plateau, Goa 403206, India.
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Stabilization of cationic zinc phthalocyanine monomers by adsorption on clay nanosheet colloid and photogeneration of singlet oxygen. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Hamblin MR. Photodynamic Therapy for Cancer: What's Past is Prologue. Photochem Photobiol 2020; 96:506-516. [PMID: 31820824 DOI: 10.1111/php.13190] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 11/03/2019] [Indexed: 12/25/2022]
Abstract
Thomas J Dougherty from Roswell Park Cancer Center played a major role in the progress of photodynamic therapy (PDT) from a laboratory science into a real-world clinical therapy to treat patients with cancer. Nevertheless over the succeeding 45 years, it is fair to say that the overall progress of clinical PDT for cancer has been somewhat disappointing. The goal of this perspective article is to summarize some of the clinical trials run by various companies using photosensitizers with different structures that have been conducted for different types of cancer. While some have been successful, others have failed, and several are now ongoing. I will attempt to touch on some factors, which have influenced this checkered history and look forward to the future of clinical PDT for cancer.
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Affiliation(s)
- Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA.,Department of Dermatology, Harvard Medical School, Boston, MA.,Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, South Africa
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Setaro F, Wennink JWH, Mäkinen PI, Holappa L, Trohopoulos PN, Ylä-Herttuala S, van Nostrum CF, de la Escosura A, Torres T. Amphiphilic phthalocyanines in polymeric micelles: a supramolecular approach toward efficient third-generation photosensitizers. J Mater Chem B 2019; 8:282-289. [PMID: 31803886 DOI: 10.1039/c9tb02014d] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this paper we describe a straightforward supramolecular strategy to encapsulate silicon phthalocyanine (SiPc) photosensitizers (PS) in polymeric micelles made of poly(ε-caprolactone)-b-methoxypoly(ethylene glycol) (PCL-PEG) block copolymers. While PCL-PEG micelles are promising nanocarriers based on their biocompatibility and biodegradability, the design of our new PS favors their encapsulation. In particular, they combine two axial benzoyl substituents, each of them carrying either three hydrophilic methoxy(triethylenoxy) chains (1), three hydrophobic dodecyloxy chains (3), or both kinds of chains (2). The SiPc derivatives 1 and 2 are therefore amphiphilic, with the SiPc unit contributing to the hydrophobic core, while lipophilicity increases along the series, making it possible to correlate the loading efficacy in PCL-PEG micelles with the hydrophobic/hydrophilic balance of the PS structure. This has led to a new kind of third-generation nano-PS that efficiently photogenerates 1O2, while preliminary in vitro experiments demonstrate an excellent cellular uptake and a promising PDT activity.
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Affiliation(s)
- Francesca Setaro
- Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Cantoblanco, Madrid, Spain.
| | - Jos W H Wennink
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands.
| | - Petri I Mäkinen
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FIN-70211, Finland
| | - Lari Holappa
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FIN-70211, Finland
| | | | - Seppo Ylä-Herttuala
- A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, Kuopio FIN-70211, Finland
| | - Cornelus F van Nostrum
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, 3508 TB Utrecht, The Netherlands.
| | - Andres de la Escosura
- Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Cantoblanco, Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), 28049 Cantoblanco, Madrid, Spain
| | - Tomas Torres
- Organic Chemistry Department, Universidad Autónoma de Madrid, 28049 Cantoblanco, Madrid, Spain. and Institute for Advanced Research in Chemical Sciences (IAdChem), 28049 Cantoblanco, Madrid, Spain and IMDEA Nanosience, Ciudad Universitaria de Cantoblanco, 28049 Madrid, Spain
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Brilkina AA, Dubasova LV, Sergeeva EA, Pospelov AJ, Shilyagina NY, Shakhova NM, Balalaeva IV. Photobiological properties of phthalocyanine photosensitizers Photosens, Holosens and Phthalosens: A comparative in vitro analysis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 191:128-134. [PMID: 30616037 DOI: 10.1016/j.jphotobiol.2018.12.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/19/2018] [Accepted: 12/26/2018] [Indexed: 11/19/2022]
Abstract
Photobiological properties of phthalocyanine photosensitizers, namely, clinically approved Photosens and new compounds Holosens and Phthalosens were analyzed on transitional cell carcinoma of the urinary bladder (T24) and human hepatic adenocarcinoma (SK-HEP-1). Photosens is a sulfated aluminum phthalocyanine with the number of sulfo groups 3.4, which is characterized by a high degree of hydrophilicity, slow cellular uptake, localization in lysosomes and the lowest photodynamic activity. Holosens is an octacholine zinc phthalocyanine, a cationic compound with significant charge. Holosens more efficiently enters the cells; it is localized in Golgi apparatus in addition to lysosomes and exhibits a significant inhibitory effect on cell viability upon irradiation. The highest photodynamic activity was demostrated by Phthalosens. Phthalosens is a metal-free analog of Photosens with a number of sulfo groups 2.5, which determines its amphiphilicity. Phthalosens is characterized by the highest rate of cellular uptake through the outer cell membrane, localization in cell membrane as well as in lysosomes and Golgi apparatus, and the highest activity upon irradiation among the photosensitizers studied. In general, changes in the physicochemical properties of Holosens and Phthalosens ensured an increase in their efficiency in vitro compared to Photosens. The features of accumulation, intracellular distribution and their interrelation with photodynamic activity, revealed in this work, indicate the prospects of Phthalosens and Holosens for clinical practice.
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Affiliation(s)
- Anna A Brilkina
- Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia
| | - Lubov V Dubasova
- Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia
| | - Ekaterina A Sergeeva
- Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanova st, Nizhny Novgorod 603950, Russia
| | - Anton J Pospelov
- Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia
| | - Natalia Y Shilyagina
- Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia
| | - Natalia M Shakhova
- Institute of Applied Physics of the Russian Academy of Sciences, 46 Ulyanova st, Nizhny Novgorod 603950, Russia
| | - Irina V Balalaeva
- Lobachevsky State University of Nizhny Novgorod, 23 Gagarin ave., Nizhny Novgorod 603950, Russia; I.M. Sechenov First Moscow State Medical University, 8-2 Trubetskaya str., Moscow 119991, Russia.
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Dong X, Bond AE, Pan N, Coleman M, Tang Y, Sun YP, Yang L. Synergistic photoactivated antimicrobial effects of carbon dots combined with dye photosensitizers. Int J Nanomedicine 2018; 13:8025-8035. [PMID: 30568443 PMCID: PMC6267493 DOI: 10.2147/ijn.s183086] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Carbon quantum dots (CDots) have recently been reported as a new class of visible light activated antimicrobial nanomaterials. This study reports the synergistic photoactivated antimicrobial interactions of CDots with photosensitizers on bacterial cells. METHODS The antimicrobial effects of the CDots with surface passivation molecules 2,2'-(ethylenedioxy)bis(ethylamine) in combination with photosensitizer methylene blue (MB) or toluidine blue (TB) at various concentrations were evaluated against Escherichia coli cells with and without 1-hour visible light illumination. The broth microdilution checkerboard method and isobologram analysis were used for determining if synergistic effect existed between CDots and MB or TB. RESULTS The results showed that CDots alone at a concentration of 5 μg/mL did not display antimicrobial effects, 1 μg/mL MB alone only decreased 1.86 log of viable cell numbers, but the combination treatment with 5 μg/mL CDots combined with 1 μg/mL MB completely inhibited bacteria growth, resulted in 6.2 log viable cell number reduction, suggesting synergistic interaction between the two. The antimicrobial effects of CDots/TB combination exhibited similarly synergistic effects on E. coli cells. These synergistic effects between CDots and MB or TB were further confirmed using the checkerboard microdilution methods, where the fractional inhibitory concentration index value (0.5) and the isobologram analyses. The synergistic interactions were also correlated to the increased generation of intracellular reactive oxygen species in E. coli cells upon the combination treatments of CDots/MB or CDots/TB. CONCLUSION The study demonstrated the synergistic photoactivated antimicrobial effects of CDots in combination with other photosensitizers. Such synergistic effect may open new strategies for developing highly effective antimicrobial methods.
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Affiliation(s)
- Xiuli Dong
- Biomanufacturing Research Institute and Technology Enterprise, Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, USA,
| | - Ambrose E Bond
- Biomanufacturing Research Institute and Technology Enterprise, Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, USA,
| | - Nengyu Pan
- Department of Chemistry, Laboratory for Emerging Materials and Technology, Clemson University, Clemson, SC, USA,
| | - Montrez Coleman
- Department of Chemistry, Laboratory for Emerging Materials and Technology, Clemson University, Clemson, SC, USA,
| | - Yongan Tang
- Department of Mathematics and Physics, North Carolina Central University, Durham, NC, USA
| | - Ya-Ping Sun
- Department of Chemistry, Laboratory for Emerging Materials and Technology, Clemson University, Clemson, SC, USA,
| | - Liju Yang
- Biomanufacturing Research Institute and Technology Enterprise, Department of Pharmaceutical Sciences, North Carolina Central University, Durham, NC, USA,
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Anderson ED, Sova S, Ivanic J, Kelly L, Schnermann MJ. Defining the conditional basis of silicon phthalocyanine near-IR ligand exchange. Phys Chem Chem Phys 2018; 20:19030-19036. [PMID: 29971294 PMCID: PMC6344126 DOI: 10.1039/c8cp03842b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bond cleavage reactions initiated by long-wavelength light are needed to extend the scope of the caged-uncaged paradigm into complex physiological settings. Axially unsymmetrical silicon phthalocyanines (SiPcs) undergo efficient release of phenol ligands in a reaction contingent on three factors - near-IR light (690 nm), hypoxia, and a thiol reductant. These studies detail efforts to define the mechanistic basis for this unique conditionally-dependent bond cleavage reaction. Spectroscopic studies provide evidence for the formation of a key phthalocyanine radical anion intermediate formed from the triplet state in a reductant-dependent manner. Computational chemistry studies indicate that phenol ligand solvolysis proceeds through a heptacoordinate silicon transition state and that this solvolytic process is favored following SiPc radical anion formation. These results provide insight regarding the central role that radical anion intermediates formed through photoinduced electron transfer with biological reductants can play in long-wavelength uncaging reactions.
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Affiliation(s)
- Erin D Anderson
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute at Frederick, Frederick, USA.
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Jung S, Chen X. Quantum Dot-Dye Conjugates for Biosensing, Imaging, and Therapy. Adv Healthc Mater 2018; 7:e1800252. [PMID: 29862653 PMCID: PMC6149543 DOI: 10.1002/adhm.201800252] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 04/17/2018] [Indexed: 01/14/2023]
Abstract
Adding value to the intrinsic properties of quantum dots (QDs), a strategy to conjugate dyes on the surface of QDs offers new opportunities, since the coupling between QD and dyes can be designed to allow Förster resonance energy transfer (FRET) and/or electron transfer (eT). These processes are accompanied by the change of QD and/or dye fluorescence and subsequent photochemical reactions (e.g., generation of 1 O2 ). Based on the change of fluorescence signals by the interaction with biomolecules, QD-dye conjugates are exploited as biosensors for the detection of pH, O2 , nicotinamide adenine dinucleotide (phosphate), ions, proteases, glutathione, and microRNA. QD-dye conjugates also can be modulated by the irradiation of external light; this concept is demonstrated for fluorescence super-resolution imaging as photoactivatable or photoswitchable probes. When QDs are conjugated with photosensitizing dyes, the QD-dye conjugates can generate 1 O2 in a repetitive manner for better cancer treatment, and can also be available for approaches using two-photon excitation or bioluminescence resonance energy transfer mechanisms for deep tissue imaging. Here, the recent advances in QD-dye conjugates, where FRET or eT produces fluorescence readouts or photochemical reactions, are reviewed. Various QD-dye conjugate systems and their biosensing/imaging and photodynamic therapeutics are summarized.
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Affiliation(s)
- Sungwook Jung
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
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17
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Cyza M, Gut A, Łapok Ł, Solarski J, Knyukshto V, Kępczyński M, Nowakowska M. Iodinated zinc phthalocyanine – The novel visible-light activated photosensitizer for efficient generation of singlet oxygen. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.03.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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18
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Teles Ferreira J, Pina J, Alberto Fontes Ribeiro C, Fernandes R, Tomé JPC, Rodríguez-Morgade MS, Torres T. PEG-containing ruthenium phthalocyanines as photosensitizers for photodynamic therapy: synthesis, characterization and in vitro evaluation. J Mater Chem B 2017; 5:5862-5869. [PMID: 32264219 DOI: 10.1039/c7tb00958e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Three ruthenium(ii) phthalocyanines functionalized at their axial positions with 4-12 PEG chains bearing hydroxy, amino and ether terminal groups were synthesized and studied as PDT agents against bladder cancer cells. All three dyes displayed high singlet oxygen generation quantum yields in DMSO (ΦΔ = 0.76). The water-soluble Ru(L3)2Pc also shows high singlet oxygen quantum yields (ΦΔ = 0.48) in neat water. In vitro studies show that these complexes are accumulated in bladder cancer cells, are nontoxic PSs per se, and have high phototoxic efficiency.
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Affiliation(s)
- Joana Teles Ferreira
- Departamento de Química Orgánica, Universidad Autónoma de Madrid (UAM), Cantoblanco, 28049 Madrid, Spain.
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19
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Hirai Y, Sawano B, Takaki T, Matsuo Y, Yabu H. Metal Phthalocyanine Derivative Nanocrystals: Color-controlled and Transparent Dispersions by a One-pot UV-assisted Synthetic Process. CHEM LETT 2017. [DOI: 10.1246/cl.170036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yutaro Hirai
- Department of Applied Chemistry, Tohoku University, 6-6 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579
| | - Bunji Sawano
- Yamamoto Chemicals Inc., 1-43 Yugecho-Minami, Yao, Osaka 581-0034
| | - Toshihiko Takaki
- Yamamoto Chemicals Inc., 1-43 Yugecho-Minami, Yao, Osaka 581-0034
| | - Yasutaka Matsuo
- Research Institute for Electronic Science (RIES), Hokkaido University, N21W10, Sapporo, Hokkaido 001-0021
| | - Hiroshi Yabu
- WPI-Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Miyagi 980-8577
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20
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Kim MM, Ghogare AA, Greer A, Zhu TC. On the in vivo photochemical rate parameters for PDT reactive oxygen species modeling. Phys Med Biol 2017; 62:R1-R48. [PMID: 28166056 PMCID: PMC5510640 DOI: 10.1088/1361-6560/62/5/r1] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photosensitizer photochemical parameters are crucial data in accurate dosimetry for photodynamic therapy (PDT) based on photochemical modeling. Progress has been made in the last few decades in determining the photochemical properties of commonly used photosensitizers (PS), but mostly in solution or in vitro. Recent developments allow for the estimation of some of these photochemical parameters in vivo. This review will cover the currently available in vivo photochemical properties of photosensitizers as well as the techniques for measuring those parameters. Furthermore, photochemical parameters that are independent of environmental factors or are universal for different photosensitizers will be examined. Most photosensitizers discussed in this review are of the type II (singlet oxygen) photooxidation category, although type I photosensitizers that involve other reactive oxygen species (ROS) will be discussed as well. The compilation of these parameters will be essential for ROS modeling of PDT.
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Affiliation(s)
- Michele M Kim
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, United States of America. Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, United States of America
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21
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Çetinkaya M, Pişkin M, Altun S, Odabaş Z, Durmuş M. Do the positions of trimethyl groups on phthalocyanine photosensitizers improve their photochemical and photophysical properties? J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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Near-infrared uncaging or photosensitizing dictated by oxygen tension. Nat Commun 2016; 7:13378. [PMID: 27853134 PMCID: PMC5476797 DOI: 10.1038/ncomms13378] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 09/19/2016] [Indexed: 12/26/2022] Open
Abstract
Existing strategies that use tissue-penetrant near-infrared light for the targeted treatment of cancer typically rely on the local generation of reactive oxygen species. This approach can be impeded by hypoxia, which frequently occurs in tumour microenvironments. Here we demonstrate that axially unsymmetrical silicon phthalocyanines uncage small molecules preferentially in a low-oxygen environment, while efficiently generating reactive oxygen species in normoxic conditions. Mechanistic studies of the uncaging reaction implicate a photoredox pathway involving photoinduced electron transfer to generate a key radical anion intermediate. Cellular studies demonstrate that the biological mechanism of action is O2-dependent, with reactive oxygen species-mediated phototoxicity in normoxic conditions and small molecule uncaging in hypoxia. These studies provide a near-infrared light-targeted treatment strategy with the potential to address the complex tumour landscape through two distinct mechanisms that vary in response to the local O2 environment.
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23
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Dąbrowski JM, Pucelik B, Regiel-Futyra A, Brindell M, Mazuryk O, Kyzioł A, Stochel G, Macyk W, Arnaut LG. Engineering of relevant photodynamic processes through structural modifications of metallotetrapyrrolic photosensitizers. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.06.007] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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24
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Hildebrandt N, Spillmann CM, Algar WR, Pons T, Stewart MH, Oh E, Susumu K, Díaz SA, Delehanty JB, Medintz IL. Energy Transfer with Semiconductor Quantum Dot Bioconjugates: A Versatile Platform for Biosensing, Energy Harvesting, and Other Developing Applications. Chem Rev 2016; 117:536-711. [DOI: 10.1021/acs.chemrev.6b00030] [Citation(s) in RCA: 457] [Impact Index Per Article: 57.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Niko Hildebrandt
- NanoBioPhotonics
Institut d’Electronique Fondamentale (I2BC), Université Paris-Saclay, Université Paris-Sud, CNRS, 91400 Orsay, France
| | | | - W. Russ Algar
- Department
of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada
| | - Thomas Pons
- LPEM;
ESPCI Paris, PSL Research University; CNRS; Sorbonne Universités, UPMC, F-75005 Paris, France
| | | | - Eunkeu Oh
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Kimihiro Susumu
- Sotera Defense Solutions, Inc., Columbia, Maryland 21046, United States
| | - Sebastian A. Díaz
- American Society for Engineering Education, Washington, DC 20036, United States
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25
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Soyer Can O, Kaya EN, Durmuş M, Bulut M. High photosensitized singlet oxygen generating zinc(II) and indium(III) acetate phthalocyanines containing 6,8-di- tert -butyl-3-( p -oxyphenyl)coumarin groups. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.10.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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26
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The novel 2,6-dimethoxyphenoxy substituted phthalocyanine dyes having high singlet oxygen quantum yields. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.11.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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Gürel E, Pişkin M, Altun S, Odabaş Z, Durmuş M. The novel mesityloxy substituted metallo-phthalocyanine dyes with long fluorescence lifetimes and high singlet oxygen quantum yields. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.09.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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D'Souza S, Ogbodu R, Nyokong T. The effects of gold coated and uncoated zinc oxide nanohexagons on the photophysicochemical properties of the low symmetry zinc phthalocyanine. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.06.088] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Gürel E, Pişkin M, Altun S, Odabaş Z, Durmuş M. Synthesis, characterization and investigation of the photophysical and photochemical properties of highly soluble novel metal-free, zinc(ii), and indium(iii) phthalocyanines substituted with 2,3,6-trimethylphenoxy moieties. Dalton Trans 2015; 44:6202-11. [DOI: 10.1039/c5dt00304k] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The synthesis, characterization and photophysicochemical properties of 2,3,6-trimethylphenoxy substituted metal-free, zinc(ii), and indium(iii)acetate phthalocyanines were described.
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Affiliation(s)
- Ekrem Gürel
- Department of Chemistry
- Marmara University
- Istanbul
- Turkey
| | - Mehmet Pişkin
- Çanakkale Onsekiz Mart University
- Vocational School of Technical Sciences
- Department of Food Technology
- Çanakkale
- Turkey
| | - Selçuk Altun
- Department of Chemistry
- Marmara University
- Istanbul
- Turkey
| | - Zafer Odabaş
- Department of Chemistry
- Marmara University
- Istanbul
- Turkey
| | - Mahmut Durmuş
- Gebze Technical University
- Department of Chemistry
- Kocaeli
- Turkey
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30
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Wang D, Fei B, Halig LV, Qin X, Hu Z, Xu H, Wang YA, Chen Z, Kim S, Shin DM, Chen Z(G. Targeted iron-oxide nanoparticle for photodynamic therapy and imaging of head and neck cancer. ACS NANO 2014; 8:6620-32. [PMID: 24923902 PMCID: PMC4155749 DOI: 10.1021/nn501652j] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Accepted: 06/12/2014] [Indexed: 05/21/2023]
Abstract
Photodynamic therapy (PDT) is a highly specific anticancer treatment modality for various cancers, particularly for recurrent cancers that no longer respond to conventional anticancer therapies. PDT has been under development for decades, but light-associated toxicity limits its clinical applications. To reduce the toxicity of PDT, we recently developed a targeted nanoparticle (NP) platform that combines a second-generation PDT drug, Pc 4, with a cancer targeting ligand, and iron oxide (IO) NPs. Carboxyl functionalized IO NPs were first conjugated with a fibronectin-mimetic peptide (Fmp), which binds integrin β1. Then the PDT drug Pc 4 was successfully encapsulated into the ligand-conjugated IO NPs to generate Fmp-IO-Pc 4. Our study indicated that both nontargeted IO-Pc 4 and targeted Fmp-IO-Pc 4 NPs accumulated in xenograft tumors with higher concentrations than nonformulated Pc 4. As expected, both IO-Pc 4 and Fmp-IO-Pc 4 reduced the size of HNSCC xenograft tumors more effectively than free Pc 4. Using a 10-fold lower dose of Pc 4 than that reported in the literature, the targeted Fmp-IO-Pc 4 NPs demonstrated significantly greater inhibition of tumor growth than nontargeted IO-Pc 4 NPs. These results suggest that the delivery of a PDT agent Pc 4 by IO NPs can enhance treatment efficacy and reduce PDT drug dose. The targeted IO-Pc 4 NPs have great potential to serve as both a magnetic resonance imaging (MRI) agent and PDT drug in the clinic.
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Affiliation(s)
- Dongsheng Wang
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Department of Radiology and Imaging Sciences, and Department of Biostatistics and Bioinformatics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Baowei Fei
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Department of Radiology and Imaging Sciences, and Department of Biostatistics and Bioinformatics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, Atlanta, Georgia 30322, United States
- Address correspondence to ,
| | - Luma V. Halig
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Department of Radiology and Imaging Sciences, and Department of Biostatistics and Bioinformatics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Xulei Qin
- Department of Biomedical Engineering, Emory University and Georgia Institute of Technology, Atlanta, Georgia 30322, United States
| | - Zhongliang Hu
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Department of Radiology and Imaging Sciences, and Department of Biostatistics and Bioinformatics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Hong Xu
- Ocean NanoTech LLC, San Diego, California 92126, United States
| | | | - Zhengjia Chen
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Department of Radiology and Imaging Sciences, and Department of Biostatistics and Bioinformatics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Biostatistics and Bioinformatics Shared Resource at Winship Cancer Institute, Emory University, Atlanta, Georgia 30322, United States
| | - Sungjin Kim
- Biostatistics and Bioinformatics Shared Resource at Winship Cancer Institute, Emory University, Atlanta, Georgia 30322, United States
| | - Dong M. Shin
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Department of Radiology and Imaging Sciences, and Department of Biostatistics and Bioinformatics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
| | - Zhuo (Georgia) Chen
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Department of Radiology and Imaging Sciences, and Department of Biostatistics and Bioinformatics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
- Address correspondence to ,
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31
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Łapok Ł, Cyza M, Gut A, Kępczyński M, Szewczyk G, Sarna T, Nowakowska M. Synthesis, spectroscopic properties and interaction with a liposomal membrane of a novel iodinated magnesium phthalocyanine. J Photochem Photobiol A Chem 2014. [DOI: 10.1016/j.jphotochem.2014.04.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Doane T, Chomas A, Srinivasan S, Burda C. Observation and Photophysical Characterization of Silicon Phthalocyanine J-Aggregate Dimers in Aqueous Solutions. Chemistry 2014; 20:8030-9. [DOI: 10.1002/chem.201304885] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Indexed: 12/21/2022]
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33
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Liu L, Song Y, Ma L, Zang L, Tao L, Zhang Z, Han J. Growth inhibition effect of HMME-mediated PDT on hepatocellular carcinoma HepG2 cells. Lasers Med Sci 2014; 29:1715-22. [DOI: 10.1007/s10103-014-1583-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 04/15/2014] [Indexed: 01/07/2023]
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34
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Bio M, Rajaputra P, Nkepang G, You Y. Far-red light activatable, multifunctional prodrug for fluorescence optical imaging and combinational treatment. J Med Chem 2014; 57:3401-9. [PMID: 24694092 PMCID: PMC4002125 DOI: 10.1021/jm5000722] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
We recently developed “photo-unclick
chemistry”,
a novel chemical tool involving the cleavage of aminoacrylate by singlet
oxygen, and demonstrated its application to visible light-activatable
prodrugs. In this study, we prepared an advanced multifunctional prodrug,
Pc-(L-CA4)2, composed of the fluorescent photosensitizer
phthalocyanine (Pc), an SO-labile aminoacrylate linker (L), and a
cytotoxic drug combretastatin A-4 (CA4). Pc-(L-CA4)2 had
reduced dark toxicity compared with CA4. However, once illuminated,
it showed improved toxicity similar to CA4 and displayed bystander
effects in vitro. We monitored the time-dependent
distribution of Pc-(L-CA4)2 using optical imaging with
live mice. We also effectively ablated tumors by the illumination
with far-red light to the mice, presumably through the combined effects
of photodynamic therapy (PDT) and released chemotherapy drug, without
any sign of acute systemic toxicity.
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Affiliation(s)
- Moses Bio
- Department of Pharmaceutical Sciences and ‡Department of Chemistry and Biochemistry, University of Oklahoma Health Sciences Center , Oklahoma City, Oklahoma 73117, United States
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35
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Silicon phthalocyanine 4 phototoxicity in Trichophyton rubrum. Antimicrob Agents Chemother 2014; 58:3029-34. [PMID: 24614382 DOI: 10.1128/aac.01448-13] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Trichophyton rubrum is the leading pathogen that causes long-lasting skin and nail dermatophyte infections. Currently, topical treatment consists of terbinafine for the skin and ciclopirox for the nails, whereas systemic agents, such as oral terbinafine and itraconazole, are also prescribed. These systemic drugs have severe side effects, including liver toxicity. Topical therapies, however, are sometimes ineffective. This led us to investigate alternative treatment options, such as photodynamic therapy (PDT). Although PDT is traditionally recognized as a therapeutic option for treating a wide range of medical conditions, including age-related macular degeneration and malignant cancers, its antimicrobial properties have also received considerable attention. However, the mechanism(s) underlying the susceptibility of dermatophytic fungi to PDT is relatively unknown. As a noninvasive treatment, PDT uses a photosensitizing drug and light, which, in the presence of oxygen, results in cellular destruction. In this study, we investigated the mechanism of cytotoxicity of PDT in vitro using the silicon phthalocyanine (Pc) 4 [SiPc(OSi(CH3)2(CH2)3N(CH3)2)(OH)] in T. rubrum. Confocal microscopy revealed that Pc 4 binds to cytoplasmic organelles, and upon irradiation, reactive oxygen species (ROS) are generated. The impairment of fungal metabolic activities as measured by an XTT (2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxyanilide inner salt) assay indicated that 1.0 μM Pc 4 followed by 670 to 675 nm light at 2.0 J/cm(2) reduced the overall cell survival rate, which was substantiated by a dry weight assay. In addition, we found that this therapeutic approach is effective against terbinafine-sensitive (24602) and terbinafine-resistant (MRL666) strains. These data suggest that Pc 4-PDT may have utility as a treatment for dermatophytosis.
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36
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Grüner M, Siozios V, Hagenhoff B, Breitenstein D, Strassert CA. Structural and Photosensitizing Features of Phthalocyanine-Zeolite Hybrid Nanomaterials. Photochem Photobiol 2013; 89:1406-12. [DOI: 10.1111/php.12141] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 07/03/2013] [Indexed: 01/02/2023]
Affiliation(s)
- Malte Grüner
- CeNTech; Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Münster Germany
| | - Vassilios Siozios
- MEET; Institut für Physikalische Chemie; Westfälische Wilhelms-Universität Münster; Münster Germany
| | | | | | - Cristian A. Strassert
- CeNTech; Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Münster Germany
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37
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Masilela N, Antunes E, Nyokong T. Axial coordination of zinc and silicon phthalocyanines to silver and gold nanoparticles: an investigation of their photophysicochemical and antimicrobial behavior. J PORPHYR PHTHALOCYA 2013. [DOI: 10.1142/s1088424613500016] [Citation(s) in RCA: 25] [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 axial coordination of zinc phthalocyanine and bis-(1,6-hexanedithiol) silicon phthalocyanine to silver and gold nanoparticles. Red shifting of absorption spectra of the phthalocyanine complexes was observed after conjugation with the nanoparticles. An improvement in the photophysicochemical behavior and antimicrobial activity was achieved in the presence of metal nanoparticles for both complexes. A decrease in triplet lifetimes was observed for all the phthalocyanine metal nanoparticle conjugates. The Zn phthalocyanine complex gave the highest triplet and singlet oxygen quantum yield in the presence of gold nanoparticles. On the other hand, the bacterial inhibition was found to be best for the Si phthalocyanine derivative in the presence of nanoparticles compared to the Zn phthalocyanine counterpart. The highest antimicrobial activity was achieved for both conjugates against B. subtilis compared to S. aureaus both in the dark and under illumination with light.
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Affiliation(s)
| | - Edith Antunes
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
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39
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Sekkat N, van den Bergh H, Nyokong T, Lange N. Like a bolt from the blue: phthalocyanines in biomedical optics. Molecules 2011; 17:98-144. [PMID: 22198535 PMCID: PMC6269082 DOI: 10.3390/molecules17010098] [Citation(s) in RCA: 183] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 12/05/2011] [Accepted: 12/14/2011] [Indexed: 01/08/2023] Open
Abstract
The purpose of this review is to compile preclinical and clinical results on phthalocyanines (Pcs) as photosensitizers (PS) for Photodynamic Therapy (PDT) and contrast agents for fluorescence imaging. Indeed, Pcs are excellent candidates in these fields due to their strong absorbance in the NIR region and high chemical and photo-stability. In particular, this is mostly relevant for their in vivo activation in deeper tissular regions. However, most Pcs present two major limitations, i.e., a strong tendency to aggregate and a low water-solubility. In order to overcome these issues, both chemical tuning and pharmaceutical formulation combined with tumor targeting strategies were applied. These aspects will be developed in this review for the most extensively studied Pcs during the last 25 years, i.e., aluminium-, zinc- and silicon-based Pcs.
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Affiliation(s)
- Nawal Sekkat
- School of Pharmaceutical Sciences, University of Lausanne/Geneva, Geneva, 30, quai Ernest Ansermet, Geneva CH-1211, Switzerland
| | - Hubert van den Bergh
- Laboratory of Photomedicine, Swiss Federal Institute of Technology (EPFL), Lausanne CH-1015, Switzerland
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Norbert Lange
- School of Pharmaceutical Sciences, University of Lausanne/Geneva, Geneva, 30, quai Ernest Ansermet, Geneva CH-1211, Switzerland
- Author to whom correspondence should be addressed; ; Tel.:+41-22-379-3335; Fax: +41-22-379-6567
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40
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Lam M, Jou PC, Lattif AA, Lee Y, Malbasa CL, Mukherjee PK, Oleinick NL, Ghannoum MA, Cooper KD, Baron ED. Photodynamic therapy with Pc 4 induces apoptosis of Candida albicans. Photochem Photobiol 2011; 87:904-9. [PMID: 21521233 PMCID: PMC3139787 DOI: 10.1111/j.1751-1097.2011.00938.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The high prevalence of drug resistance necessitates the development of novel antifungal agents against infections caused by opportunistic fungal pathogens, such as Candida albicans. Elucidation of apoptosis in yeast-like fungi may provide a basis for future therapies. In mammalian cells, photodynamic therapy (PDT) has been demonstrated to generate reactive oxygen species, leading to immediate oxidative modifications of biological molecules and resulting in apoptotic cell death. In this report, we assess the in vitro cytotoxicity and mechanism of PDT, using the photosensitizer Pc 4, in planktonic C. albicans. Confocal image analysis confirmed that Pc 4 localizes to cytosolic organelles, including mitochondria. A colony formation assay showed that 1.0 μM Pc 4 followed by light at 2.0 J cm(-2) reduced cell survival by 4 logs. XTT (2,3-bis[2-methoxy-4-nitro-5-sulfophenyl]-2H-tetrazolium-5-carboxyanilide) assay revealed that Pc 4-PDT impaired fungal metabolic activity, which was confirmed using the FUN-1 (2-chloro-4-[2,3-dihydro-3-methyl-(benzo-1,3-thiazol-2-yl)-methylidene]-1-phenylquinolinium iodide) fluorescence probe. Furthermore, we observed changes in nuclear morphology characteristic of apoptosis, which were substantiated by increased externalization of phosphatidylserine and DNA fragmentation following Pc 4-PDT. These data indicate that Pc 4-PDT can induce apoptosis in C. albicans. Therefore, a better understanding of the process will be helpful, as PDT may become a useful treatment option for candidiasis.
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Affiliation(s)
- Minh Lam
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Skin Diseases Research Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Paul C. Jou
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Ali A. Lattif
- Center for Medical Mycology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Yoojin Lee
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Christi L. Malbasa
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Skin Diseases Research Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Pranab K. Mukherjee
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Center for Medical Mycology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Nancy L. Oleinick
- Case Comprehensive Cancer Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Department of Radiation Oncology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
| | - Mahmoud A. Ghannoum
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Skin Diseases Research Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Center for Medical Mycology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Department of Dermatology, Cleveland Veterans Affairs Medical Center, Cleveland, OH 44106, USA
| | - Kevin D. Cooper
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Skin Diseases Research Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Department of Dermatology, Cleveland Veterans Affairs Medical Center, Cleveland, OH 44106, USA
| | - Elma D. Baron
- Department of Dermatology, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Case Skin Diseases Research Center, University Hospitals Case Medical Center, 11100 Euclid Avenue, and Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA
- Department of Dermatology, Cleveland Veterans Affairs Medical Center, Cleveland, OH 44106, USA
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41
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Baron ED, Malbasa CL, Santo-Domingo D, Fu P, Miller JD, Hanneman KK, Hsia AH, Oleinick NL, Colussi VC, Cooper KD. Silicon phthalocyanine (Pc 4) photodynamic therapy is a safe modality for cutaneous neoplasms: results of a phase 1 clinical trial. Lasers Surg Med 2011; 42:728-35. [PMID: 21246576 DOI: 10.1002/lsm.20984] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Photodynamic therapy (PDT) is a non-invasive treatment for non-melanoma skin cancer. However, PDT systems currently used clinically have limitations such as pain and superficial tissue penetration. The silicon phthalocyanine Pc 4 is a second-generation photosensitizer with peak absorption in the far red at 675 nm. OBJECTIVE To assess the safety and tolerability of topically applied Pc 4 followed by red light (Pc 4-PDT) in treating cutaneous neoplasms. STUDY DESIGN/MATERIALS AND METHODS Forty three adults with a diagnosis of neoplasms including actinic keratoses, Bowen's disease, squamous cell carcinoma, basal cell carcinoma, or mycosis fungoides were treated with a single administration of Pc 4-PDT and followed for 14 days. The study utilized a light and Pc 4 dose escalation design in sequential groups of three subjects each. RESULTS Pc 4-PDT was well tolerated with no significant local toxicity or increased photosensitivity. It has promising biologic effects, particularly in mycosis fungoides where 14 of 35 subjects demonstrated a clinical response, which correlates with Pc 4-PDT-induced apoptosis, as measured by increased active caspase-3 in the treated skin lesions. CONCLUSIONS Pc 4-PDT is a safe and tolerable treatment modality that effectively triggers apoptosis in cutaneous neoplasms such as mycosis fungoides.
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Affiliation(s)
- Elma D Baron
- Department of Dermatology, University Hospitals Case Medical Center, Case Western Reserve University, Cleveland, Ohio 44106, USA.
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42
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Shen XM, Jiang XJ, Huang CC, Zhang HH, Huang JD. Highly photostable silicon(IV) phthalocyanines containing adamantane moieties: synthesis, structure, and properties. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Kim J, Minkler PE, Salomon RG, Anderson VE, Hoppel CL. Cardiolipin: characterization of distinct oxidized molecular species. J Lipid Res 2010; 52:125-35. [PMID: 20858593 DOI: 10.1194/jlr.m010520] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Cardiolipin (CL) is a phospholipid predominantly found in the mitochondrial inner membrane and is associated structurally with individual complexes of the electron transport chain (ETC). Because the ETC is the major mitochondrial reactive oxygen species (ROS)-generating site, the proximity to the ETC and bisallylic methylenes of the PUFA chains of CL make it a likely target of ROS in the mitochondrial inner membrane. Oxidized cellular CL products, uniquely derived from ROS-induced autoxidation, could serve as biomarkers for the presence of the ROS and could help in the understanding of the mechanism of oxidative stress. Because major CL species have four unsaturated acyl chains, whereas other phospholipids usually have only one in the sn-2 position, characterization of oxidized CL is highly challenging. In the current study, we exposed CL, under aerobic conditions, to singlet oxygen (¹O₂), the radical initiator 2,2'-azobis(2-methylpropionamidine) dihydrochloride, or room air, and the oxidized CL species were characterized by HPLC-tandem mass spectrometry (MS/MS). Our reverse-phase ion-pair HPLC-MS/MS method can characterize the major and minor oxidized CL species by detecting distinctive fragment ions associated with specific oxidized species. The HPLC-MS/MS results show that monohydroperoxides and bis monohydroperoxides were generated under all three conditions. However, significant amounts of CL dihydroperoxides were produced only by ¹O₂-mediated oxidation. These products were barely detectable from radical oxidation either in a liposome bilayer or in thin film. These observations are only possible due to the chromatographic separation of the different oxidized species.
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Affiliation(s)
- Junhwan Kim
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106, USA
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44
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Kim J, Rodriguez ME, Oleinick NL, Anderson VE. Photo-oxidation of cardiolipin and cytochrome c with bilayer-embedded Pc 4. Free Radic Biol Med 2010; 49:718-25. [PMID: 20510355 PMCID: PMC2921921 DOI: 10.1016/j.freeradbiomed.2010.05.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2009] [Revised: 04/30/2010] [Accepted: 05/15/2010] [Indexed: 12/20/2022]
Abstract
Singlet oxygen, (1)O(2), is produced by absorption of red light by the phthalocyanine dye Pc 4, followed by energy transfer to dissolved triplet molecular oxygen, (3)O(2). In tissues, Pc 4 concentrates in lipid bilayers, and particularly in mitochondrial membranes, because of its positive charge. Illumination of cells and tissues with red light after uptake of Pc 4 results in cell death. The potential initial chemical steps that result in cellular dysfunction have been characterized in this study. Both unsaturated acyl chains of phospholipids and proteins are identified as targets of oxidation. Tetra-linoleoyl cardiolipin was oxidized in both liposomes and mitochondria after Pc 4-mediated (1)O(2) generation. Evidence for the formation of both mono- and bis-hydroperoxide adducts of single linoleoyl side chains is provided by ESI-MS and ESI-MS/MS. Similarly, illumination of Pc 4 in liposomes and mitochondria resulted in cytochrome c oxidation as detected by oxidation of His 26 in the peptide H(26)*KTGPNLHGLFGK, further supporting the potential use of this peptide as a biomarker for the presence of mitochondrial oxidative stress characteristic of (1)O(2) in vivo (J. Kim et al., Free Radic. Biol. Med. 44:1700-1711; 2008). These observations provide evidence that formation of lipid hydroperoxides and/or protein oxidation can be the initial chemical steps in Pc 4-mediated induction of apoptosis in photodynamic therapy.
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Affiliation(s)
- Junhwan Kim
- Department of Biochemistry, Case Western Reserve University, School of Medicine, Cleveland, Ohio 44106
| | - Myriam E. Rodriguez
- Department of Radiation Oncology, Case Western Reserve University, School of Medicine, Cleveland, Ohio 44106
- Department of Dermatology, Case Western Reserve University, School of Medicine, Cleveland, Ohio 44106
| | - Nancy L. Oleinick
- Department of Radiation Oncology, Case Western Reserve University, School of Medicine, Cleveland, Ohio 44106
- Case Comprehensive Cancer Center, Case Western Reserve University, School of Medicine, Cleveland, Ohio 44106
| | - Vernon E. Anderson
- Department of Biochemistry, Case Western Reserve University, School of Medicine, Cleveland, Ohio 44106
- Case Comprehensive Cancer Center, Case Western Reserve University, School of Medicine, Cleveland, Ohio 44106
- Correspondence to: Division of Pharmacology, Physiology and Biological Chemistry NIGMS Building 45, Room 2As.43J Bethesda, MD 20892 301-594-3827 (phone) 301-480-2802 (fax)
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45
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Master AM, Rodriguez ME, Kenney ME, Oleinick NL, Gupta AS. Delivery of the photosensitizer Pc 4 in PEG-PCL micelles for in vitro PDT studies. J Pharm Sci 2010; 99:2386-98. [PMID: 19967780 DOI: 10.1002/jps.22007] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The silicon phthalocyanine Pc 4 is a second-generation photosensitizer that has several properties superior to other photosensitizers currently approved by the FDA, and it has shown significant promise for photodynamic therapy (PDT) in several cancer cells in vitro and model tumor systems in vivo. However, because of the high hydrophobicity of Pc 4, its formulation for in vivo delivery and favorable biodistribution become challenging. To this end, we are studying encapsulation and delivery of Pc 4 in block copolymer micelles. Here, we report the development of biocompatible PEG-PCL micelle nanoparticles, encapsulation of Pc 4 within the micelle core by hydrophobic association with the PCL block, and in vitro PDT studies of the micelle-formulated Pc 4 in MCF-7c3 human breast cancer cells. Our studies demonstrate efficient encapsulation of Pc 4 in the micelles, intracellular uptake of the micelle-formulated Pc 4 in cells, and significant cytotoxic effect of the formulation upon photoirradiation. Quantitative estimation of the extent of Pc 4 loading in the micelles and the photocytotoxicity of the micelle-incorporated Pc 4 demonstrate the promise of our approach to develop a biocompatible nanomedicine platform for tumor-targeted delivery of Pc 4 for site-selective PDT.
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Affiliation(s)
- Alyssa M Master
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Wickenden Building, Rm 519, Cleveland, Ohio 44106, USA
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46
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Rodriguez ME, Zhang P, Azizuddin K, Delos Santos GB, Chiu SM, Xue LY, Berlin JC, Peng X, Wu H, Lam M, Nieminen AL, Kenney ME, Oleinick NL. Structural factors and mechanisms underlying the improved photodynamic cell killing with silicon phthalocyanine photosensitizers directed to lysosomes versus mitochondria. Photochem Photobiol 2009; 85:1189-200. [PMID: 19508642 DOI: 10.1111/j.1751-1097.2009.00558.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The phthalocyanine photosensitizer Pc 4 has been shown to bind preferentially to mitochondrial and endoplasmic reticulum membranes. Upon photoirradiation of Pc 4-loaded cells, membrane components, especially Bcl-2, are photodamaged and apoptosis, as indicated by activation of caspase-3 and cleavage of poly(ADP-ribose) polymerase, is triggered. A series of analogs of Pc 4 were synthesized, and the results demonstrate that Pcs with the aminopropylsiloxy ligand of Pc 4 or a similar one on one side of the Pc ring and a second large axial ligand on the other side of the ring have unexpected properties, including enhanced cell uptake, greater monomerization resulting in greater intracellular fluorescence and three-fold higher affinity constants for liposomes. The hydroxyl-bearing axial ligands tend to reduce aggregation of the Pc and direct it to lysosomes, resulting in four to six times more killing of cells, as defined by loss of clonogenicity, than with Pc 4. Whereas Pc 4-PDT photodamages Bcl-2 and Bcl-xL, Pc 181-PDT causes much less photodamage to Bcl-2 over the same dose-response range relative to cell killing, with earlier cleavage of Bid and slower caspase-3-dependent apoptosis. Therefore, within this series of photosensitizers, these hydroxyl-bearing axial ligands are less aggregated than is Pc 4, tend to localize to lysosomes and are more effective in overall cell killing than is Pc 4, but induce apoptosis more slowly and by a modified pathway.
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Affiliation(s)
- Myriam E Rodriguez
- Department of Radiation Oncology, Case Western Reserve University, Cleveland, OH, USA
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47
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Mroz P, Bhaumik J, Dogutan DK, Aly Z, Kamal Z, Khalid L, Kee HL, Bocian DF, Holten D, Lindsey JS, Hamblin MR. Imidazole metalloporphyrins as photosensitizers for photodynamic therapy: role of molecular charge, central metal and hydroxyl radical production. Cancer Lett 2009; 282:63-76. [PMID: 19346065 DOI: 10.1016/j.canlet.2009.02.054] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Revised: 02/26/2009] [Accepted: 02/27/2009] [Indexed: 11/28/2022]
Abstract
The in vitro photodynamic therapy activity of four imidazole-substituted metalloporphyrins has been studied using human (HeLa) and mouse (CT26) cancer cell lines: an anionic Zn porphyrin and a homologous series of three cationic Zn, Pd or InCl porphyrins. A dramatic difference in phototoxicity was found: Pd cationic>InCl cationic>Zn cationic>Zn anionic. HeLa cells were more susceptible than CT26 cells. Induction of apoptosis was demonstrated using a fluorescent caspase assay. The anionic Zn porphyrin localized in lysosomes while the cationic Zn porphyrin localized in lysosomes and mitochondria, as assessed by fluorescence microscopy. Studies using fluorescent probes suggested that the cationic Pd porphyrin produced more hydroxyl radicals as the reactive oxygen species. Thus, the cationic Pd porphyrin has high potential as a photosensitizer and gives insights into characteristics for improved molecular designs.
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Affiliation(s)
- Pawel Mroz
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
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48
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Mao J, Zhang Y, Zhu J, Zhang C, Guo Z. Molecular combo of photodynamic therapeutic agent silicon(iv) phthalocyanine and anticancer drug cisplatin. Chem Commun (Camb) 2009:908-10. [DOI: 10.1039/b817968a] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Huang Z, Huang J, Chen N, Huang J. Synthesis, characterization and properties of some metallophthalocyanine complexes substituted by N -piperidineethanol. J COORD CHEM 2008. [DOI: 10.1080/00958970801905254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ziyang Huang
- a Institute of Research on Functional Materials , Fuzhou University , Fuzhou 350002, China
- b College of Chemistry and Materials Science , Fujian Normal University , Fuzhou 350007, China
| | - Jiandong Huang
- a Institute of Research on Functional Materials , Fuzhou University , Fuzhou 350002, China
| | - Naisheng Chen
- a Institute of Research on Functional Materials , Fuzhou University , Fuzhou 350002, China
| | - Jinling Huang
- a Institute of Research on Functional Materials , Fuzhou University , Fuzhou 350002, China
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50
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Kim J, Rodriguez ME, Guo M, Kenney ME, Oleinick NL, Anderson VE. Oxidative modification of cytochrome c by singlet oxygen. Free Radic Biol Med 2008; 44:1700-11. [PMID: 18242196 PMCID: PMC2424268 DOI: 10.1016/j.freeradbiomed.2007.12.031] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2007] [Revised: 12/06/2007] [Accepted: 12/18/2007] [Indexed: 11/15/2022]
Abstract
Singlet oxygen ((1)O(2)) is a reactive oxygen species that may be generated in biological systems. Photodynamic therapy generates (1)O(2) by photoexcitation of sensitizers resulting in intracellular oxidative stress and induction of apoptosis. (1)O(2) oxidizes amino acid side chains of proteins and inactivates enzymes when generated in vitro. Among proteogenic amino acids, His, Tyr, Met, Cys, and Trp are known to be oxidized by (1)O(2) at physiological pH. However, there is a lack of direct evidence of oxidation of proteins by (1)O(2). Because (1)O(2) is difficult to detect in cells, identifying oxidized cellular products uniquely derived from (1)O(2) could serve as a marker of its presence. In the present study, (1)O(2) reactions with model peptides analyzed by tandem mass spectrometry provide insight into the mass of prominent adducts formed with the reactive amino acids. Analysis by MALDI-TOF and tandem mass spectrometry of peptides of cytochrome c exposed to (1)O(2) generated by photoexcitation of the phthalocyanine Pc 4 showed unique oxidation products, which might be used as markers of the presence of (1)O(2) in the mitochondrial intermembrane space. Differences in the elemental composition of the oxidized amino acid residues observed with cytochrome c and the model peptides suggest that the protein environment can affect the oxidation pathway.
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Affiliation(s)
- Junhwan Kim
- Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Myriam E. Rodriguez
- Department of Radiation Oncology, School of Medicine, Case Western Reserve University/University Hospitals of Cleveland, Cleveland, OH 44106, USA
| | - Ming Guo
- Department of Chemistry, Case Western Reserve University, Cleveland, OH, USA
| | - Malcolm E. Kenney
- Department of Chemistry, Case Western Reserve University, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | - Nancy L. Oleinick
- Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Department of Radiation Oncology, School of Medicine, Case Western Reserve University/University Hospitals of Cleveland, Cleveland, OH 44106, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | - Vernon E. Anderson
- Department of Biochemistry, School of Medicine, Case Western Reserve University, Cleveland, OH, USA
- Department of Chemistry, Case Western Reserve University, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Corresponding author: 10900 Euclid Avenue, Cleveland, OH 44106-4935, Ph: (216) 368-2599, fax (216) 368 3419, E-mail
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