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Heaugwane D, Cerlati O, Belkhir K, Tarek Benkhaled B, Catrouillet S, Fabing I, Claparols C, Vedrenne M, Goudounèche D, Payré B, Lucia Bona B, Tosi A, Baldelli Bombelli F, Vicendo P, Lapinte V, Lonetti B, Mingotaud AF, Gibot L. Coumarin-poly(2-oxazoline)s as synergetic and protein-undetected nanovectors for photodynamic therapy. Int J Pharm 2024; 658:124186. [PMID: 38701908 DOI: 10.1016/j.ijpharm.2024.124186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/29/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Because of the difficult challenges of nanopharmaceutics, the development of a variety of nanovectors is still highly desired. Photodynamic therapy, which uses a photosensitizer to locally produce reactive oxygen species to kill the undesired cells, is a typical example for which encapsulation has been shown to be beneficial. The present work describes the use of coumarin-functionalized polymeric nanovectors based on the self-assembly of amphiphilic poly(2-oxazoline)s. Encapsulation of pheophorbide a, a known PDT photosensitizer, is shown to lead to an increased efficiency compared to the un-encapsulated version. Interestingly, the presence of coumarin both enhances the desired photocytotoxicity and enables the crosslinking of the vectors. Various nanovectors are examined, differing by their size, shape and hydrophilicity. Their behaviour in PDT protocols on HCT-116 cells monolayers is described, the influence of their crosslinking commented. Furthermore, the formation of a protein corona is assessed.
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Affiliation(s)
- Diana Heaugwane
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Orélia Cerlati
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Kedafi Belkhir
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | | | | | - Isabelle Fabing
- Laboratoire SPCMIB, CNRS UMR5068, Université Toulouse III - Paul Sabatier, 118 Rte de Narbonne, 31062 Toulouse cedex 9, France
| | - Catherine Claparols
- Institut de Chimie de Toulouse, Université Toulouse 3 Paul Sabatier, ICT-FR CNRS 2599, 31062 Toulouse France
| | - Marc Vedrenne
- Institut de Chimie de Toulouse, Université Toulouse 3 Paul Sabatier, ICT-FR CNRS 2599, 31062 Toulouse France
| | - Dominique Goudounèche
- CMEAB Université Toulouse III - Paul Sabatier, 133 Route de Narbonne, 31062 Toulouse cedex, France
| | - Bruno Payré
- CMEAB Université Toulouse III - Paul Sabatier, 133 Route de Narbonne, 31062 Toulouse cedex, France
| | - Beatrice Lucia Bona
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Alice Tosi
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Francesca Baldelli Bombelli
- Laboratory of Supramolecular and Bio-Nanomaterials (SupraBioNanoLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via Luigi Mancinelli 7, 20131 Milan, Italy
| | - Patricia Vicendo
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Vincent Lapinte
- ICGM, Université de Montpellier, CNRS, ENSCM, Montpellier, France
| | - Barbara Lonetti
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France
| | - Anne-Françoise Mingotaud
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France.
| | - Laure Gibot
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 31062 Toulouse, France.
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Youf R, Müller M, Balasini A, Thétiot F, Müller M, Hascoët A, Jonas U, Schönherr H, Lemercier G, Montier T, Le Gall T. Antimicrobial Photodynamic Therapy: Latest Developments with a Focus on Combinatory Strategies. Pharmaceutics 2021; 13:1995. [PMID: 34959277 PMCID: PMC8705969 DOI: 10.3390/pharmaceutics13121995] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial photodynamic therapy (aPDT) has become a fundamental tool in modern therapeutics, notably due to the expanding versatility of photosensitizers (PSs) and the numerous possibilities to combine aPDT with other antimicrobial treatments to combat localized infections. After revisiting the basic principles of aPDT, this review first highlights the current state of the art of curative or preventive aPDT applications with relevant clinical trials. In addition, the most recent developments in photochemistry and photophysics as well as advanced carrier systems in the context of aPDT are provided, with a focus on the latest generations of efficient and versatile PSs and the progress towards hybrid-multicomponent systems. In particular, deeper insight into combinatory aPDT approaches is afforded, involving non-radiative or other light-based modalities. Selected aPDT perspectives are outlined, pointing out new strategies to target and treat microorganisms. Finally, the review works out the evolution of the conceptually simple PDT methodology towards a much more sophisticated, integrated, and innovative technology as an important element of potent antimicrobial strategies.
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Affiliation(s)
- Raphaëlle Youf
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Max Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Ali Balasini
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Franck Thétiot
- Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 6521, Université de Brest (UBO), CS 93837, 29238 Brest, France
| | - Mareike Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Alizé Hascoët
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Ulrich Jonas
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Holger Schönherr
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Gilles Lemercier
- Coordination Chemistry Team, Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 7312, Institut de Chimie Moléculaire de Reims (ICMR), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 2, 51687 Reims, France
| | - Tristan Montier
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
- CHRU de Brest, Service de Génétique Médicale et de Biologie de la Reproduction, Centre de Référence des Maladies Rares Maladies Neuromusculaires, 29200 Brest, France
| | - Tony Le Gall
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
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Dang H, Yan L. Organic fluorescent nanoparticles with NIR-II emission for bioimaging and therapy. Biomed Mater 2021; 16:022001. [PMID: 33186922 DOI: 10.1088/1748-605x/abca4a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Fluorescence imaging technology in the second near-infrared bio-channel (NIR-II) has the advantages of low light scattering and weak autofluorescence. It can obtain high spatial resolution imaging in deeper biological tissues and realize accurate diagnosis in the lesion. As a new cancer treatment method, photothermal therapy has the characteristics of obvious curative effect and small side effects. However, the hydrophobicity and non-selectivity of many fluorescent materials, aggregation-induced fluorescence quenching, and other problems lead to undesirable imaging results. Here, we reviewed the structure of the NIR-II fluorescent molecules and these dyes whose fluorescence tail emission is in the NIR-II bio-channel, discussed in detail how to realize the redshift of the dye wavelength, including modifying the push-pull electron system, extending the conjugated chain, and forming J-aggregates and other methods. We also summarize some strategies to improve brightness, including responsiveness, targeting, adjustment of aggregation mode, and aggregation-induced emission effect, thereby improving the imaging performance and therapeutic effect of NIR-II fluorescent dyes.
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Affiliation(s)
- Huiping Dang
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemical Physics, University of Science and Technology of China, Hefei, Jinzai Road 96# 230026, People's Republic of China
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Gibot L, Demazeau M, Pimienta V, Mingotaud AF, Vicendo P, Collin F, Martins-Froment N, Dejean S, Nottelet B, Roux C, Lonetti B. Role of Polymer Micelles in the Delivery of Photodynamic Therapy Agent to Liposomes and Cells. Cancers (Basel) 2020; 12:E384. [PMID: 32046147 PMCID: PMC7072360 DOI: 10.3390/cancers12020384] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 01/29/2020] [Accepted: 02/04/2020] [Indexed: 12/17/2022] Open
Abstract
The use of nanocarriers for hydrophobic photosensitizers, in the context of photodynamic therapy (PDT) to improve pharmacokinetics and bio-distribution, is well-established. However, the mechanisms at play in the internalization of nanocarriers are not well-elucidated, despite its importance in nanocarrier design. In this study, we focus on the mechanisms involved in copolymer poly(ethylene oxide)-block-poly(-caprolactone) PEO-PCL and poly(ethylene oxide)-block-poly styrene PEO-PS micelles - membrane interactions through complementary physico-chemical studies on biomimetic membranes, and biological experiments on two-dimensional (2D) and three-dimensional (3D) cell cultures. Förster Resonance Energy Transfer measurements on fluorescently-labelled lipid vesicles, and flow cytometry on two cancerous cell lines enabled the evaluation in the uptake of a photosensitizer, Pheophorbide a (Pheo), and copolymer chains towards model membranes, and cells, respectively. The effects of calibrated light illumination for PDT treatment on lipid vesicle membranes, i.e., leakage and formation of oxidized lipids, and cell viability, were assessed. No significant differences were observed between the ability of PEO-PCL and PEO-PS micelles in delivering Pheo to model membranes, but Pheo was found in higher concentrations in cells in the case of PEO-PCL. These higher Pheo concentrations did not correspond to better performances in PDT treatment. We demonstrated that there are subtle differences in PEO-PCL and PEO-PS micelles for the delivery of Pheo.
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Affiliation(s)
- Laure Gibot
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
| | - Maxime Demazeau
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
| | - Véronique Pimienta
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
| | - Anne-Françoise Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
| | - Patricia Vicendo
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
| | - Fabrice Collin
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
| | - Nathalie Martins-Froment
- Service Commun de Spectrométrie de Masse (FR2599), Université de Toulouse III (Paul Sabatier), 118, route de Narbonne, F-31062 Toulouse Cedex 9, France;
| | - Stéphane Dejean
- IBMM, Université de Montpellier, CNRS, ENSCM, 34 090 Montpellier, France; (S.D.); (B.N.)
| | - Benjamin Nottelet
- IBMM, Université de Montpellier, CNRS, ENSCM, 34 090 Montpellier, France; (S.D.); (B.N.)
| | - Clément Roux
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
| | - Barbara Lonetti
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III—Paul Sabatier, F-31062 Toulouse, France; (L.G.); (M.D.); (V.P.); (A.-F.M.); (P.V.); (F.C.)
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Demazeau M, Gibot L, Mingotaud AF, Vicendo P, Roux C, Lonetti B. Rational design of block copolymer self-assemblies in photodynamic therapy. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:180-212. [PMID: 32082960 PMCID: PMC7006492 DOI: 10.3762/bjnano.11.15] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 12/04/2019] [Indexed: 05/10/2023]
Abstract
Photodynamic therapy is a technique already used in ophthalmology or oncology. It is based on the local production of reactive oxygen species through an energy transfer from an excited photosensitizer to oxygen present in the biological tissue. This review first presents an update, mainly covering the last five years, regarding the block copolymers used as nanovectors for the delivery of the photosensitizer. In particular, we describe the chemical nature and structure of the block copolymers showing a very large range of existing systems, spanning from natural polymers such as proteins or polysaccharides to synthetic ones such as polyesters or polyacrylates. A second part focuses on important parameters for their design and the improvement of their efficiency. Finally, particular attention has been paid to the question of nanocarrier internalization and interaction with membranes (both biomimetic and cellular), and the importance of intracellular targeting has been addressed.
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Affiliation(s)
- Maxime Demazeau
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France
| | - Laure Gibot
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France
| | - Anne-Françoise Mingotaud
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France
| | - Patricia Vicendo
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France
| | - Clément Roux
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France
| | - Barbara Lonetti
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062, Toulouse, France
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Synthesis and Encapsulation of a New Zinc Phthalocyanine Photosensitizer into Polymeric Nanoparticles to Enhance Cell Uptake and Phototoxicity. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030401] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Efforts to enhance the utility of photodynamic therapy as a non-invasive method for treating certain cancers have often involved the design of dye sensitizers with increased singlet oxygen efficiency. More recently, however, sensitizers with greater selectivity for tumor cells than surrounding tissue have been targeted. The present study provides an approach to the modification of the known photosensitizer zinc phthalocyanine (ZnPc), to enhance its solubility and delivery to cancer cells. Targeting a photosensitizer to the site of action improves the efficacy of the sensitizer in photodynamic therapy. In this work we used PLGA-b-PEG to encapsulate a new zinc phthalocyanine derivative, 2(3), 9(10), 16(17), 23(24)-tetrakis-(4’-methyl-benzyloxy) phthalocyanine zinc(II) (ZnPcBCH3), to enhance uptake into A549 cells, a human lung cancer cell line. ZnPcBCH3 exhibited the same photochemical properties as the parent compound ZnPc but gave increased solubility in organic solvents, which allowed for efficient encapsulation. In addition, the encapsulated dye showed a near 500-fold increase in phototoxicity for A549 cancer cells compared to free dye.
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Oudin A, Chauvin J, Gibot L, Rols MP, Balor S, Goudounèche D, Payré B, Lonetti B, Vicendo P, Mingotaud AF, Lapinte V. Amphiphilic polymers based on polyoxazoline as relevant nanovectors for photodynamic therapy. J Mater Chem B 2019; 7:4973-4982. [DOI: 10.1039/c9tb00118b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Coumarin crosslinked polyoxazoline-based vectors developed for efficient photodynamic therapy.
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Li T, Yan L. Functional Polymer Nanocarriers for Photodynamic Therapy. Pharmaceuticals (Basel) 2018; 11:E133. [PMID: 30513613 PMCID: PMC6315651 DOI: 10.3390/ph11040133] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 11/21/2018] [Accepted: 11/27/2018] [Indexed: 12/17/2022] Open
Abstract
Photodynamic therapy (PDT) is an appealing therapeutic modality in management of some solid tumors and other diseases for its minimal invasion and non-systemic toxicity. However, the hydrophobicity and non-selectivity of the photosensitizers, inherent serious hypoxia of tumor tissues and limited penetration depth of light restrict PDT further applications in clinic. Functional polymer nanoparticles can be used as a nanocarrier for accurate PDT. Here, we elucidate the mechanism and application of PDT in cancer treatments, and then review some strategies to administer the biodistribution and activation of photosensitizers (PSs) to ameliorate or utilize the tumor hypoxic microenvironment to enhance the photodynamic therapy effect.
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Affiliation(s)
- Tuanwei Li
- CAS Key Laboratory of Soft Matter Chemistry, iChEM, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China.
| | - Lifeng Yan
- CAS Key Laboratory of Soft Matter Chemistry, iChEM, and Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China.
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Figarol A, Gibot L, Golzio M, Lonetti B, Mingotaud AF, Rols MP. A journey from the endothelium to the tumor tissue: distinct behavior between PEO-PCL micelles and polymersomes nanocarriers. Drug Deliv 2018; 25:1766-1778. [PMID: 30311803 PMCID: PMC6197035 DOI: 10.1080/10717544.2018.1510064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 08/03/2018] [Accepted: 08/06/2018] [Indexed: 01/01/2023] Open
Abstract
Polymeric nanocarriers must overcome several biological barriers to reach the vicinity of solid tumors and deliver their encapsulated drug. This study assessed the in vitro and in vivo passage through the blood vessel wall to tumors of two well-characterized polymeric nanocarriers: poly(ethyleneglycol-b-ε-caprolactone) micelles and polymersomes charged with a fluorescent membrane dye (DiO: 3,3'-dioctadecyloxacarbo-cyanine perchlorate). The internalization and translocation from endothelial (human primary endothelial cells HUVEC) to cancer cells (human tumor cell line HCT-116) was studied in conventional 2D monolayers, 3D tumor spheroids, or in an endothelium model based on transwell assay. Micelles induced a faster DiO internalization compared to polymersomes but the latter crossed the endothelial monolayer more easily. Both translocation rates were enhanced by the addition of a pro-inflammatory factor or in the presence of tumor cells. These results were confirmed by early in vivo experiments. Overall, this study pointed out the room for the improvement of polymeric nanocarriers design to avoid drug losses when crossing the blood vessel walls.
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Affiliation(s)
- Agathe Figarol
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
- Laboratoire des IMRCP, Université de Toulouse CNRS UMR, Toulouse, France
| | - Laure Gibot
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Muriel Golzio
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Barbara Lonetti
- Laboratoire des IMRCP, Université de Toulouse CNRS UMR, Toulouse, France
| | | | - Marie-Pierre Rols
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
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Frit inlet field-flow fractionation techniques for the characterization of polyion complex self-assemblies. J Chromatogr A 2017; 1481:101-110. [DOI: 10.1016/j.chroma.2016.12.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 12/15/2016] [Accepted: 12/16/2016] [Indexed: 01/15/2023]
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Till U, Gibot L, Mingotaud AF, Ehrhart J, Wasungu L, Mingotaud C, Souchard JP, Poinso A, Rols MP, Violleau F, Vicendo P. Drug Release by Direct Jump from Poly(ethylene-glycol-b-ε-caprolactone) Nano-Vector to Cell Membrane. Molecules 2016; 21:E1643. [PMID: 27916905 PMCID: PMC6273951 DOI: 10.3390/molecules21121643] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 11/15/2016] [Accepted: 11/18/2016] [Indexed: 01/07/2023] Open
Abstract
Drug delivery by nanovectors involves numerous processes, one of the most important being its release from the carrier. This point still remains unclear. The current work focuses on this point using poly(ethyleneglycol-b-ε-caprolactone) micelles containing either pheophorbide-a (Pheo-a) as a fluorescent probe and a phototoxic agent or fluorescent copolymers. This study showed that the cellular uptake and the phototoxicity of loaded Pheo-a are ten times higher than those of the free drug and revealed a very low cellular penetration of the fluorescence-labeled micelles. Neither loaded nor free Pheo-a displayed the same cellular localization as the labeled micelles. These results imply that the drug entered the cells without its carrier and probably without a disruption, as suggested by their stability in cell culture medium. These data allowed us to propose that Pheo-a directly migrates from the micelle to the cell without disruption of the vector. This mechanism will be discussed.
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Affiliation(s)
- Ugo Till
- Université de Toulouse, UPS/CNRS, IMRCP, 118 Rte de Narbonne, 31062 Toulouse, France.
| | - Laure Gibot
- Université de Toulouse, Equipe de Biophysique Cellulaire, IPBS-CNRS UMR5089 205, Route de Narbonne BP 64182, 31077 Toulouse, France.
| | | | - Jérôme Ehrhart
- Université de Toulouse, UPS/CNRS, IMRCP, 118 Rte de Narbonne, 31062 Toulouse, France.
| | - Luc Wasungu
- Université de Toulouse, Equipe de Biophysique Cellulaire, IPBS-CNRS UMR5089 205, Route de Narbonne BP 64182, 31077 Toulouse, France.
| | - Christophe Mingotaud
- Université de Toulouse, UPS/CNRS, IMRCP, 118 Rte de Narbonne, 31062 Toulouse, France.
| | - Jean-Pierre Souchard
- Université de Toulouse, UPS/CNRS, IMRCP, 118 Rte de Narbonne, 31062 Toulouse, France.
| | - Alix Poinso
- Université de Toulouse, UPS/CNRS, IMRCP, 118 Rte de Narbonne, 31062 Toulouse, France.
| | - Marie-Pierre Rols
- Université de Toulouse, Equipe de Biophysique Cellulaire, IPBS-CNRS UMR5089 205, Route de Narbonne BP 64182, 31077 Toulouse, France.
| | - Frédéric Violleau
- Université de Toulouse, Laboratoire de Chimie Agro-industrielle (LCA), INRA, INPT, INP-EI PURPAN, 31076 Toulouse, France.
| | - Patricia Vicendo
- Université de Toulouse, UPS/CNRS, IMRCP, 118 Rte de Narbonne, 31062 Toulouse, France.
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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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14
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Zhao L, Kim TH, Kim HW, Ahn JC, Kim SY. Enhanced cellular uptake and phototoxicity of Verteporfin-conjugated gold nanoparticles as theranostic nanocarriers for targeted photodynamic therapy and imaging of cancers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:611-622. [DOI: 10.1016/j.msec.2016.05.047] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 05/09/2016] [Accepted: 05/12/2016] [Indexed: 12/26/2022]
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15
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Park W, Park SJ, Cho S, Shin H, Jung YS, Lee B, Na K, Kim DH. Intermolecular Structural Change for Thermoswitchable Polymeric Photosensitizer. J Am Chem Soc 2016; 138:10734-7. [PMID: 27535204 DOI: 10.1021/jacs.6b04875] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We developed a thermoswitchable polymeric photosensitizer (T-PPS) by conjugating PS (Pheophorbide-a, PPb-a) to a temperature-responsive polymer backbone of biocompatible hydroxypropyl cellulose. Self-quenched PS molecules linked in close proximity by π-π stacking in T-PPS were easily transited to an active monomeric state by the temperature-induced phase transition of polymer backbones. The temperature-responsive intermolecular interaction changes of PS molecules in T-PPS were demonstrated in synchrotron small-angle X-ray scattering and UV-vis spectrophotometer analysis. The T-PPS allowed switchable activation and synergistically enhanced cancer cell killing effect at the hyperthermia temperature (45 °C). Our developed T-PPS has the considerable potential not only as a new class of photomedicine in clinics but also as a biosensor based on temperature responsiveness.
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Affiliation(s)
| | - Sin-Jung Park
- Center for Photomedicine, Department of Biotechnology, The Catholic University of Korea , Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | | | - Heejun Shin
- Center for Photomedicine, Department of Biotechnology, The Catholic University of Korea , Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Young-Seok Jung
- Center for Photomedicine, Department of Biotechnology, The Catholic University of Korea , Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Byeongdu Lee
- X-ray Science Division, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - Kun Na
- Center for Photomedicine, Department of Biotechnology, The Catholic University of Korea , Bucheon-si, Gyeonggi-do 14662, Republic of Korea
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16
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Till U, Gibot L, Mingotaud C, Vicendo P, Rols MP, Gaucher M, Violleau F, Mingotaud AF. Self-assembled polymeric vectors mixtures: characterization of the polymorphism and existence of synergistic effects in photodynamic therapy. NANOTECHNOLOGY 2016; 27:315102. [PMID: 27334669 DOI: 10.1088/0957-4484/27/31/315102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The objective of this work was to assess the relation between the purity of polymeric self-assemblies vectors solution and their photodynamic therapeutic efficiency. For this, several amphiphilic block copolymers of poly(ethyleneoxide-b-ε-caprolactone) have been used to form self-assemblies with different morphologies (micelles, worm-like micelles or vesicles). In a first step, controlled mixtures of preformed micelles and vesicles have been characterized both by dynamic light scattering and asymmetrical flow field flow fractionation (AsFlFFF). For this, a custom-made program, STORMS, was developed to analyze DLS data in a thorough manner by providing a large set of fitting parameters. This showed that DLS only sensed the larger vesicles when the micelles/vesicles ratio was 80/20 w/w. On the other hand, AsFlFFF allowed clear detection of the presence of micelles when this same ratio was as low as 10/90. Subsequently, the photodynamic therapy efficiency of various controlled mixtures was assessed using multicellular spheroids when a photosensitizer, pheophorbide a, was encapsulated in the polymer self-assemblies. Some mixtures were shown to be as efficient as monomorphous systems. In some cases, mixtures were found to exhibit a higher PDT efficiency compared to the individual nano-objects, revealing a synergistic effect for the efficient delivery of the photosensitizer. Polymorphous vectors can therefore be superior in therapeutic applications.
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Affiliation(s)
- Ugo Till
- Université de Toulouse, Institut National Polytechnique de Toulouse-Ecole d'Ingénieurs de Purpan, Département Sciences Agronomiques et Agroalimentaires, 75 voie du TOEC, BP 57611, F-31076 Toulouse Cedex 03, France. Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118 route de Narbonne, F-31062, Toulouse Cedex 9, France
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Jeong K, Park S, Lee YD, Kang CS, Kim HJ, Park H, Kwon IC, Kim J, Park CR, Kim S. Size-engineered biocompatible polymeric nanophotosensitizer for locoregional photodynamic therapy of cancer. Colloids Surf B Biointerfaces 2016; 144:303-310. [PMID: 27107384 DOI: 10.1016/j.colsurfb.2016.04.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 04/03/2016] [Accepted: 04/13/2016] [Indexed: 02/02/2023]
Abstract
Current approaches in use of water-insoluble photosensitizers for photodynamic therapy (PDT) of cancer often demand a nano-delivery system. Here, we report a photosensitizer-loaded biocompatible nano-delivery formulation (PPaN-20) whose size was engineered to ca. 20nm to offer improved cell/tissue penetration and efficient generation of cytotoxic singlet oxygen. PPaN-20 was fabricated through the physical assembly of all biocompatible constituents: pyropheophorbide-a (PPa, water-insoluble photosensitizer), polycaprolactone (PCL, hydrophobic/biodegradable polymer), and Pluronic F-68 (clinically approved polymeric surfactant). Repeated microemulsification/evaporation method resulted in a fine colloidal dispersion of PPaN-20 in water, where the particulate PCL matrix containing well-dispersed PPa molecules inside was stabilized by the Pluronic corona. Compared to a control sample of large-sized nanoparticles (PPaN-200) prepared by a conventional solvent displacement method, PPaN-20 revealed optimal singlet oxygen generation and efficient cellular uptake by virtue of the suitably engineered size and constitution, leading to high in vitro phototoxicity against cancer cells. Upon administration to tumor-bearing mice by peritumoral route, PPaN-20 showed efficient tumor accumulation by the enhanced cell/tissue penetration evidenced by in vivo near-infrared fluorescence imaging. The in vivo PDT treatment with peritumorally administrated PPaN-20 showed significantly enhanced suppression of tumor growth compared to the control group, demonstrating great potential as a biocompatible photosensitizing agent for locoregional PDT treatment of cancer.
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Affiliation(s)
- Keunsoo Jeong
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea; Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, and Department of Materials Science and Engineering, Seoul National University, Gwanak-gu, Seoul 151-744, South Korea
| | - Solji Park
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea; Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Yong-Deok Lee
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea
| | - Chi Soo Kang
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea
| | - Hyun Jun Kim
- Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Hyeonjong Park
- Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Ick Chan Kwon
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea
| | - Jungahn Kim
- Department of Chemistry, Kyung Hee University, Dongdaemoon-gu, Seoul 130-701, South Korea
| | - Chong Rae Park
- Carbon Nanomaterials Design Laboratory, Global Research Laboratory, Research Institute of Advanced Materials, and Department of Materials Science and Engineering, Seoul National University, Gwanak-gu, Seoul 151-744, South Korea
| | - Sehoon Kim
- Center for Theragnosis, Korea Institute of Science and Technology, 39-1Hawolgok-dong, Seongbuk-gu, Seoul 136-791, South Korea.
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18
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Dionzou M, Morère A, Roux C, Lonetti B, Marty JD, Mingotaud C, Joseph P, Goudounèche D, Payré B, Léonetti M, Mingotaud AF. Comparison of methods for the fabrication and the characterization of polymer self-assemblies: what are the important parameters? SOFT MATTER 2016; 12:2166-76. [PMID: 26754164 DOI: 10.1039/c5sm01863c] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The ability to self-assemble was evaluated for a large variety of amphiphilic block copolymers, including poly(ethyleneoxide-b-ε-caprolactone), poly(ethyleneoxide-b-d,l-lactide), poly(ethyleneoxide-b-styrene), poly(ethyleneoxide-b-butadiene) and poly(ethyleneoxide-b-methylmethacrylate). Different methods of formation are discussed, such as cosolvent addition, film hydration or electroformation. The influence of experimental parameters and macromolecular structures on the size and morphology of the final self-assembled structures is investigated and critically compared with the literature. The same process is carried out regarding the characterization of these structures. This analysis demonstrates the great care that should be taken when dealing with such polymeric assemblies. If the morphology of such assemblies can be predicted to some extent by macromolecular parameters like the hydrophilic/hydrophobic balance, those parameters cannot be considered as universal. In addition, external experimental parameters (methods of preparation, use of co-solvent, …) appeared as critical key parameters to obtain a good control over the final structure of such objects, which are very often not at thermodynamic equilibrium but kinetically frozen. A principal component analysis is also proposed, in order to examine the important parameters for forming the self-assemblies. Here again, the hydrophilic/hydrophobic fraction is identified as an important parameter.
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Affiliation(s)
- M Dionzou
- Université de Toulouse, UPS/CNRS, IMRCP, 118 route de Narbonne, F-31062 Toulouse Cedex 9, France.
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Abstract
In chemotherapy a fine balance between therapeutic and toxic effects needs to be found for each patient, adapting standard combination protocols each time. Nanotherapeutics has been introduced into clinical practice for treating tumors with the aim of improving the therapeutic outcome of conventional therapies and of alleviating their toxicity and overcoming multidrug resistance. Photodynamic therapy (PDT) is a clinically approved, minimally invasive procedure emerging in cancer treatment. It involves the administration of a photosensitizer (PS) which, under light irradiation and in the presence of molecular oxygen, produces cytotoxic species. Unfortunately, most PSs lack specificity for tumor cells and are poorly soluble in aqueous media, where they can form aggregates with low photoactivity. Nanotechnological approaches in PDT (nanoPDT) can offer a valid option to deliver PSs in the body and to solve at least some of these issues. Currently, polymeric nanoparticles (NPs) are emerging as nanoPDT system because their features (size, surface properties, and release rate) can be readily manipulated by selecting appropriate materials in a vast range of possible candidates commercially available and by synthesizing novel tailor-made materials. Delivery of PSs through NPs offers a great opportunity to overcome PDT drawbacks based on the concept that a nanocarrier can drive therapeutic concentrations of PS to the tumor cells without generating any harmful effect in non-target tissues. Furthermore, carriers for nanoPDT can surmount solubility issues and the tendency of PS to aggregate, which can severely affect photophysical, chemical, and biological properties. Finally, multimodal NPs carrying different drugs/bioactive species with complementary mechanisms of cancer cell killing and incorporating an imaging agent can be developed. In the following, we describe the principles of PDT use in cancer and the pillars of rational design of nanoPDT carriers dictated by tumor and PS features. Then we illustrate the main nanoPDT systems demonstrating potential in preclinical models together with emerging concepts for their advanced design.
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20
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Till U, Gibot L, Vicendo P, Rols MP, Gaucher M, Violleau F, Mingotaud AF. Crosslinked polymeric self-assemblies as an efficient strategy for photodynamic therapy on a 3D cell culture. RSC Adv 2016. [DOI: 10.1039/c6ra09013c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Polymeric crosslinked self-assemblies based on poly(ethyleneoxide-b-ε-caprolactone) have been synthesized. They are shown to be more efficient vectors for photodynamic therapy compared to uncrosslinked systems.
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Affiliation(s)
- Ugo Till
- Université de Toulouse
- Institut National Polytechnique de Toulouse – Ecole d'Ingénieurs de Purpan
- Département Sciences Agronomiques et Agroalimentaires
- F-31076 Toulouse Cedex 03
- France
| | - Laure Gibot
- Institut de Pharmacologie et de Biologie Structurale
- Université de Toulouse
- CNRS
- UPS
- France
| | - Patricia Vicendo
- Laboratoire des IMRCP
- Université de Toulouse
- CNRS UMR 5623
- Université Paul Sabatier
- Toulouse Cedex 9
| | - Marie-Pierre Rols
- Institut de Pharmacologie et de Biologie Structurale
- Université de Toulouse
- CNRS
- UPS
- France
| | - Mireille Gaucher
- Université de Toulouse
- Institut National Polytechnique de Toulouse – Ecole d'Ingénieurs de Purpan
- Département Sciences Agronomiques et Agroalimentaires
- F-31076 Toulouse Cedex 03
- France
| | - Frédéric Violleau
- Université de Toulouse
- Institut National Polytechnique de Toulouse – Ecole d'Ingénieurs de Purpan
- Laboratoire de Chimie Agro-Industrielle
- Toulouse
- France
| | - Anne-Françoise Mingotaud
- Laboratoire des IMRCP
- Université de Toulouse
- CNRS UMR 5623
- Université Paul Sabatier
- Toulouse Cedex 9
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21
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Akl J, Sasaki I, Lacroix PG, Hugues V, Vicendo P, Bocé M, Mallet-Ladeira S, Blanchard-Desce M, Malfant I. trans- and cis-(Cl,Cl)-[RuII(FT)Cl2(NO)](PF6): promising candidates for NO release in the NIR region. Photochem Photobiol Sci 2016; 15:1484-1491. [DOI: 10.1039/c6pp00181e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Efficient NO photodelivery from cis- and trans-(Cl,Cl)-[RuII(FT)Cl2(NO)](PF6) complexes upon two-photon excitation in the NIR region.
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Affiliation(s)
- Joelle Akl
- Laboratoire de Chimie de Coordination du CNRS
- F-31077 Toulouse
- France
| | - Isabelle Sasaki
- Laboratoire de Chimie de Coordination du CNRS
- F-31077 Toulouse
- France
| | | | - Vincent Hugues
- Institute of Molecular Sciences (CNRS UMR 5255)
- Talence Cedex
- France
| | - Patricia Vicendo
- Laboratoire des Interactions Moléculaires et de la Réactivité Chimique et Photochimique
- F-31062 Toulouse
- France
| | - Mathilde Bocé
- Laboratoire de Chimie de Coordination du CNRS
- F-31077 Toulouse
- France
- Institut de Pharmacologie et de Biologie Structurale
- F-31077 Toulouse
| | | | | | - Isabelle Malfant
- Laboratoire de Chimie de Coordination du CNRS
- F-31077 Toulouse
- France
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Lee EJ, Kong HJ, Kim YJ, Park JS, Choi MS. Enhanced in vitro photocytotoxicity of water-soluble dendritic pheophorbide-a. J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424615500546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Photosensitizers can produce highly reactive singlet oxygen with exposure to visible light and are used in photodynamic therapy to treat a variety of tumors. We report on the synthesis of triethylene glycol dendron-conjugated pheophorbide-a5, a novel photosensitizer. The characteristic absorption bands (Soret and Q-bands, λmax = 405 and 670 nm, respectively) of 5 were appeared clearly in aqueous solution, due to the improved water-solubility of the dendron moiety. The value of singlet oxygen quantum yield of 5 (ΦΔ = 0.22) was higher than free pheophorbide-a (ΦΔ = 0.17) as reference in aqueous solution. Compound 5 also exhibited an enhanced in vitro phototoxicity than pheophorbide-a (PhA) in the concentration range of 1.0–5.0 μg/mL: cell viability in cells treated with 5 was reduced by ~20%, indicating a cell death rate of ~80%, while PhA treatment resulted in a cell death rate of only about 10%. These results indicate that 5 will likely be more efficient in PDT applications. Compared with free PhA, compound 5 showed highly enhanced singlet oxygen generation ability and in vitro photocytotoxicity.
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Affiliation(s)
- Eun Ji Lee
- Department of Materials Chemistry and Engineering, Konkuk University, Seoul 143-701, Korea
| | - Hyoung Jun Kong
- Department of Materials Chemistry and Engineering, Konkuk University, Seoul 143-701, Korea
| | - Young-Jin Kim
- Department of Biomedical Engineering, Catholic University of Daegu, Gyeongsan 712-702, Korea
| | - Jong S. Park
- Department of Organic Material and Polymer Engineering, Dong-A University, Busan 604-714, Korea
| | - Myung-Seok Choi
- Department of Materials Chemistry and Engineering, Konkuk University, Seoul 143-701, Korea
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23
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Mehraban N, Freeman HS. Developments in PDT Sensitizers for Increased Selectivity and Singlet Oxygen Production. MATERIALS (BASEL, SWITZERLAND) 2015; 8:4421-4456. [PMID: 28793448 PMCID: PMC5455656 DOI: 10.3390/ma8074421] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 06/29/2015] [Accepted: 07/07/2015] [Indexed: 12/20/2022]
Abstract
Photodynamic therapy (PDT) is a minimally-invasive procedure that has been clinically approved for treating certain types of cancers. This procedure takes advantage of the cytotoxic activity of singlet oxygen (¹O₂) and other reactive oxygen species (ROS) produced by visible and NIR light irradiation of dye sensitizers following their accumulation in malignant cells. The main two concerns associated with certain clinically-used PDT sensitizers that have been influencing research in this arena are low selectivity toward malignant cells and low levels of ¹O₂ production in aqueous media. Solving the selectivity issue would compensate for photosensitizer concerns such as dark toxicity and aggregation in aqueous media. One main approach to enhancing dye selectivity involves taking advantage of key methods used in pharmaceutical drug delivery. This approach lies at the heart of the recent developments in PDT research and is a point of emphasis in the present review. Of particular interest has been the development of polymeric micelles as nanoparticles for delivering hydrophobic (lipophilic) and amphiphilic photosensitizers to the target cells. This review also covers methods employed to increase ¹O₂ production efficiency, including the design of two-photon absorbing sensitizers and triplet forming cyclometalated Ir(III) complexes.
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Affiliation(s)
- Nahid Mehraban
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, NC 27695-8301, USA
| | - Harold S Freeman
- Fiber & Polymer Science Program, North Carolina State University, Raleigh, NC 27695-8301, USA.
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Zhao L, Kim TH, Kim HW, Kim SY. Pheophorbide a-Conjugated pH-Sensitive Nanoparticle Vectors for Highly Efficient Photodynamic Therapy of Cancer. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2014.1002131] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Penon O, Patiño T, Barrios L, Nogués C, Amabilino DB, Wurst K, Pérez-García L. A new porphyrin for the preparation of functionalized water-soluble gold nanoparticles with low intrinsic toxicity. ChemistryOpen 2015; 4:127-36. [PMID: 25969810 PMCID: PMC4420584 DOI: 10.1002/open.201402092] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Indexed: 12/28/2022] Open
Abstract
A potential new photosensitizer based on a dissymmetric porphyrin derivative bearing a thiol group was synthesized. 5-[4-(11-Mercaptoundecyloxy)-phenyl-10,15,20-triphenylporphyrin (PR-SH) was used to functionalize gold nanoparticles in order to obtain a potential drug delivery system. Water-soluble multifunctional gold nanoparticles GNP-PR/PEG were prepared using the Brust-Schiffrin methodology, by immobilization of both a thiolated polyethylene glycol (PEG) and the porphyrin thiol compound (PR-SH). The nanoparticles were fully characterized by transmission electron microscopy and (1)H nuclear magnetic resonance spectroscopy, UV/Vis absorption spectroscopy, and X-ray photoelectron spectroscopy. Furthermore, the ability of GNP-PR/PEGs to induce singlet oxygen production was analyzed to demonstrate the activity of the photosensitizer. Cytotoxicity experiments showed the nanoparticles are nontoxic. Finally, cellular uptake experiments demonstrated that the functionalized gold nanoparticles are internalized. Therefore, this colloid can be considered to be a novel nanosystem that could potentially be suitable as an intracellular drug delivery system of photosensitizers for photodynamic therapy.
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Affiliation(s)
- Oriol Penon
- Departament de Farmacologia i Química Terapèutica, and Institut de Nanociència i Nanotecnologia UB (IN2UB), Universitat de BarcelonaAvda. Joan XXIII s/n, 08028, Barcelona, (Spain)
| | - Tania Patiño
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de BarcelonaCampus de la UAB, 08193, Bellaterra, Spain
| | - Lleonard Barrios
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de BarcelonaCampus de la UAB, 08193, Bellaterra, Spain
| | - Carme Nogués
- Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autònoma de BarcelonaCampus de la UAB, 08193, Bellaterra, Spain
| | - David B Amabilino
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB08193, Bellaterra, (Spain)
| | - Klaus Wurst
- Institut für Anorganische ChemieInnrain 80/82, 6020, Innsbruck, (Austria)
| | - Lluïsa Pérez-García
- Departament de Farmacologia i Química Terapèutica, and Institut de Nanociència i Nanotecnologia UB (IN2UB), Universitat de BarcelonaAvda. Joan XXIII s/n, 08028, Barcelona, (Spain)
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26
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Physicochemical characterization of the thermo-induced self-assembly of thermo-responsive PDMAEMA-b
-PDEGMA copolymers. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27520] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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27
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Li L, Huh KM. Polymeric nanocarrier systems for photodynamic therapy. Biomater Res 2014; 18:19. [PMID: 26331070 PMCID: PMC4552462 DOI: 10.1186/2055-7124-18-19] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 10/02/2014] [Indexed: 01/14/2023] Open
Abstract
Photodynamic therapy (PDT) is an emerging treatment modality that involves the combined action of photosensitizers (PSs) and light for treatment of solid tumor and other diseases. Although this therapeutic method has been considered as an alternative to classical cancer treatments, clinical PDT requires further advances in selectivity and therapeutic efficacy to overcome numerous shortages related to conventional PDT. In this regard, great efforts have been devoted to the development of polymeric nanocarrier-encapsulated PSs for targeted PDT, aiming at improvement of water solubility and tumor-specificity of hydrophobic PSs. Here, we discuss the general concepts and considerations of polymeric nanocarriers for efficient delivery of PSs. In recent, the amphiphilic PS-polymer conjugate-based self-quenchable nanoparticles and PS-polymer-conjugate/quencher nanocomplexes have emerged as an attractive delivery platform for efficient and reliable PDT. They can incorporate and deliver the PS in a photodynamically inactive state but demonstrate cytotoxic effects by tumor environment-sensitive activation mechanisms, so that the photodynamic cancer treatment can achieve maximum target specificity. Here, we report the recent achievements on the development of activatable PS formulations based on PS-polymer conjugates.
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Affiliation(s)
- Li Li
- Department of Polymer Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 305-764 Republic of Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 305-764 Republic of Korea
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28
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Cheng L, Wang C, Feng L, Yang K, Liu Z. Functional Nanomaterials for Phototherapies of Cancer. Chem Rev 2014; 114:10869-939. [DOI: 10.1021/cr400532z] [Citation(s) in RCA: 1846] [Impact Index Per Article: 184.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Chao Wang
- Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Liangzhu Feng
- Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Kai Yang
- Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM) & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
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29
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Wagner M, Barthel MJ, Freund RRA, Hoeppener S, Traeger A, Schacher FH, Schubert US. Solution self-assembly of poly(ethylene oxide)-block-poly(furfuryl glycidyl ether)-block-poly(allyl glycidyl ether) based triblock terpolymers: a field-flow fractionation study. Polym Chem 2014. [DOI: 10.1039/c4py00863d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Baumann P, Spulber M, Dinu IA, Palivan CG. Cellular Trojan horse based polymer nanoreactors with light-sensitive activity. J Phys Chem B 2014; 118:9361-70. [PMID: 25045828 DOI: 10.1021/jp505152u] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Stimulus-sensitive systems at the nanoscale represent ideal candidates for improving therapeutic and diagnostic approaches by producing rapid responses to the presence of specific molecules or conditions either by changing properties or by acting "on demand". Here we introduce an optimized light-sensitive nanoreactor based on encapsulation of a photosensitizer inside polymer vesicles to serve as an efficient source of reactive oxygen species (ROS) "on demand". Two types of amphiphilic block copolymers, poly(2-methyloxazoline)-block-poly(dimethylsiloxane)-block-poly(2-methyloxazoline), PMOXA-PDMS-PMOXA, and poly(N-vinylpyrrolidone)-block-poly(dimethylsiloxane)-block-poly(N-vinylpyrrolidone), PNVP-PDMS-PNVP, were used to encapsulate Rose Bengal-bovine serum albumin (RB-BSA) inside the cavity of vesicles. The difference of copolymers molecular properties (hydrophobic to hydrophilic ratio, different chemical nature of the hydrophilic block) influenced the encapsulation ability, and uptake by cells, allowing therefore a selection of the most efficient polymer system. Nanoreactors were optimized in terms of (i) size, (ii) stability, and (iii) encapsulation efficiency based on a combination of light scattering, TEM, and UV-vis spectroscopy. By illumination, encapsulated RB-BSA conjugates generated in situ ROS, which diffused through the polymer membrane to the environment of the vesicles, as proved by electron spin resonance spectroscopy (ESR). Optimum illumination conditions were obtained based on the effect of the illumination time on the amount of ROS produced in situ by the encapsulated RB-BSA conjugates. ROS diffusion monitored by ESR was dependent on the molecular weight of copolymer that influences the thickness of the polymer membrane. Upon uptake into HeLa cells our nontoxic nanoreactors acted as a Trojan horse: they produced illumination-controlled ROS in sufficient amounts to induce cell death under photodynamic therapy (PDT) conditions. Straightforward production, stability, and Trojan horse activity inside cells support our light-sensitive nanoreactors for medical applications which require ROS to be generated with precise time and space control.
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Affiliation(s)
- Patric Baumann
- Chemistry Department, University of Basel , Klingelbergstrasse 80, Basel, Switzerland
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Till U, Gaucher-Delmas M, Saint-Aguet P, Hamon G, Marty JD, Chassenieux C, Payré B, Goudounèche D, Mingotaud AF, Violleau F. Asymmetrical flow field-flow fractionation with multi-angle light scattering and quasi-elastic light scattering for characterization of polymersomes: comparison with classical techniques. Anal Bioanal Chem 2014; 406:7841-53. [PMID: 24951132 DOI: 10.1007/s00216-014-7891-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 04/17/2014] [Accepted: 05/13/2014] [Indexed: 11/24/2022]
Abstract
Polymersomes formed from amphiphilic block copolymers, such as poly(ethyleneoxide-b-ε-caprolactone) (PEO-b-PCL) or poly(ethyleneoxide-b-methylmethacrylate), were characterized by asymmetrical flow field-flow fractionation coupled with quasi-elastic light scattering (QELS), multi-angle light scattering (MALS), and refractive index detection, leading to the determination of their size, shape, and molecular weight. The method was cross-examined with more classical ones, like batch dynamic and static light scattering, electron microscopy, and atomic force microscopy. The results show good complementarities between all the techniques; asymmetrical flow field-flow fractionation being the most pertinent one when the sample exhibits several different types of population.
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Affiliation(s)
- Ugo Till
- Université de Toulouse, UPS/CNRS, IMRCP, 118 route de Narbonne, 31062, Toulouse Cedex 9, France
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Wagner M, Holzschuh S, Traeger A, Fahr A, Schubert US. Asymmetric flow field-flow fractionation in the field of nanomedicine. Anal Chem 2014; 86:5201-10. [PMID: 24802650 DOI: 10.1021/ac501664t] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Asymmetric flow field-flow fractionation (AF4) is a widely used and versatile technique in the family of field-flow fractionations, indicated by a rapidly increasing number of publications. It represents a gentle separation and characterization method, where nonspecific interactions are reduced to a minimum, allows a broad separation range from several nano- up to micrometers and enables a superior characterization of homo- and heterogenic systems. In particular, coupling to multiangle light scattering provides detailed access to sample properties. Information about molar mass, polydispersity, size, shape/conformation, or density can be obtained nearly independent of the used material. In this Perspective, the application and progress of AF4 for (bio)macromolecules and colloids, relevant for "nano" medical and pharmaceutical issues, will be presented. The characterization of different nanosized drug or gene delivery systems, e.g., polymers, nanoparticles, micelles, dendrimers, liposomes, polyplexes, and virus-like-particles (VLP), as well as therapeutic relevant proteins, antibodies, and nanoparticles for diagnostic usage will be discussed. Thereby, the variety of obtained information, the advantages and pitfalls of this emerging technique will be highlighted. Additionally, the influence of different fractionation parameters in the separation process is discussed in detail. Moreover, a comprehensive overview is given, concerning the investigated samples, fractionation parameters as membrane types and buffers used as well as the chosen detectors and the corresponding references. The perspective ends up with an outlook to the future.
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Affiliation(s)
- Michael Wagner
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena , Humboldtstrasse 10, 07743 Jena, Germany
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Gibot L, Lemelle A, Till U, Moukarzel B, Mingotaud AF, Pimienta V, Saint-Aguet P, Rols MP, Gaucher M, Violleau F, Chassenieux C, Vicendo P. Polymeric micelles encapsulating photosensitizer: structure/photodynamic therapy efficiency relation. Biomacromolecules 2014; 15:1443-55. [PMID: 24552313 DOI: 10.1021/bm5000407] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Various polymeric micelles were formed from amphiphilic block copolymers, namely, poly(ethyleneoxide-b-ε-caprolactone), poly(ethyleneoxide-b-d,l-lactide), and poly(ethyleneoxide-b-styrene). The micelles were characterized by static and dynamic light scattering, electron microscopy, and asymmetrical flow field-flow fractionation. They all displayed a similar size close to 20 nm. The influence of the chemical structure of the block copolymers on the stability upon dilution of the polymeric micelles was investigated to assess their relevance as carriers for nanomedicine. In the same manner, the stability upon aging was assessed by FRET experiments under various experimental conditions (alone or in the presence of blood proteins). In all cases, a good stability over 48 h for all systems was encountered, with PDLLA copolymer-based systems being the first to release their load slowly. The cytotoxicity and photocytotoxicity of the carriers were examined with or without their load. Lastly, the photodynamic activity was assessed in the presence of pheophorbide a as photosensitizer on 2D and 3D tumor cell culture models, which revealed activity differences between the 2D and 3D systems.
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Affiliation(s)
- Laure Gibot
- Equipe de Biophysique Cellulaire, IPBS-CNRS UMR 5089 , 205 route de Narbonne, BP 64182, 31077 Toulouse Cedex, France
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Conte C, Ungaro F, Mazzaglia A, Quaglia F. Photodynamic Therapy for Cancer: Principles, Clinical Applications, and Nanotechnological Approaches. NANO-ONCOLOGICALS 2014. [DOI: 10.1007/978-3-319-08084-0_5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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Li L, Nurunnabi M, Nafiujjaman M, Jeong YY, Lee YK, Huh KM. A photosensitizer-conjugated magnetic iron oxide/gold hybrid nanoparticle as an activatable platform for photodynamic cancer therapy. J Mater Chem B 2014; 2:2929-2937. [DOI: 10.1039/c4tb00181h] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Zattoni A, Roda B, Borghi F, Marassi V, Reschiglian P. Flow field-flow fractionation for the analysis of nanoparticles used in drug delivery. J Pharm Biomed Anal 2014; 87:53-61. [DOI: 10.1016/j.jpba.2013.08.018] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/06/2013] [Accepted: 08/08/2013] [Indexed: 01/26/2023]
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Zhiyentayev TM, Boltaev UT, Solov'eva AB, Aksenova NA, Glagolev NN, Chernjak AV, Melik-Nubarov NS. Complexes of Chlorin e6 with Pluronics and Polyvinylpyrrolidone: Structure and Photodynamic Activity in Cell Culture. Photochem Photobiol 2013; 90:171-82. [PMID: 24118074 DOI: 10.1111/php.12181] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 09/24/2013] [Indexed: 01/13/2023]
Abstract
Polymeric carriers are extensively used in photodynamic therapy (PDT) for increase of efficacy of photosensitizers. Here, we report the influence of nine Pluronic copolymers on phototoxicity of chlorin e6 (Ce6), in particular 5- to 7-fold rise in the phototoxicity caused by hydrophilic Pluronics F127, F108, F68 and F87 and practically no influence on Ce6 of more hydrophobic polymers. The revealed value of 0.2 mg mL(-1) of Pluronic F127 concentration sufficient for half-of-maximal increase of Ce6 photodynamic activity proved to be close to 0.16 mg mL(-1) inherent in well-documented carrier poly(N-vinylpyrrolidone) (PVP). The dissociation constants of Ce6 complexes with Pluronic F127 and PVP that were estimated from UV spectra were 0.252 and 0.036 mg mL(-1) , respectively, indicating higher stability of Ce6 complex with PVP. According to the results of (1) H-NMR studies of Ce6 complexes, the porphyrin interacts not only with hydrophobic regions but also with hydrophilic sides of both polymers.
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Affiliation(s)
- Timur M Zhiyentayev
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Umed T Boltaev
- Chemistry Department, M.V. Lomonosov Moscow State University, Moscow, Russia
| | | | | | | | - Alexander V Chernjak
- Institute of Problems of Chemical Physics RAS, prosp. Academika Semenova 1, Chernogolovka, Russia
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Li L, Nurunnabi M, Nafiujjaman M, Lee YK, Huh KM. GSH-mediated photoactivity of pheophorbide a-conjugated heparin/gold nanoparticle for photodynamic therapy. J Control Release 2013; 171:241-50. [DOI: 10.1016/j.jconrel.2013.07.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 06/21/2013] [Accepted: 07/07/2013] [Indexed: 01/22/2023]
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Zhao L, Kim TH, Huh KM, Kim HW, Kim SY. Self-assembled photosensitizer-conjugated nanoparticles for targeted photodynamic therapy. J Biomater Appl 2012; 28:434-47. [DOI: 10.1177/0885328212459777] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An effective tumor-targeted drug delivery system for photodynamic therapy was developed by designing ligand-mediated nanoparticles with stable formulations of a hydrophobic photosensitizer. Novel folic acid (FA)-conjugated amphiphilic block copolymers of polyethylene glycol (PEG) and poly-β-benzyl-L-aspartate (PBLA) with the potential to act as pH-responsive drug release reservoirs were synthesized. The photosensitizer, 2,4-diacetyl deuteroporphyrin IX dimethyl ether (DD-PpIX), was conjugated to the copolymers through pH-sensitive hydrazone linkage. The syntheses and compositions of all copolymers were confirmed by 1H NMR measurement. Photosensitizer-conjugated amphiphilic copolymeric nanoparticles (FA-PEG-P(Asp-Hyd)-DD-PpIX) were prepared by micelle formation in aqueous solution. The particle sizes of the FA-PEG-PBLA and FA-PEG-P(Asp-Hyd)-DD-PpIX nanoparticles were determined by light-scattering measurements. The range was 105–298 nm, depending on copolymer molecular weight and composition. Field emission scanning electron microscopy showed that the FA-PEG-P(Asp-Hyd)-DD-PpIX copolymeric nanoparticles were submicron in size and spherical in shape. The results of in vitro release tests showed that the release profiles of DD-PpIX from the nanoparticles were strongly pH-dependent and influenced by the amount of photosensitizer that was conjugated. In vitro tests using HeLa cells indicated that the FA-PEG-P(Asp-Hyd)-DD-PpIX nanoparticles had low dark-toxicity and showed more than 97% of cellular uptake. Based on our results, the FA-PEG-P(Asp-Hyd)-DD-PpIX nanoparticle system could be a promising approach for developing novel photosensitizer delivery carriers for photodynamic therapy.
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Affiliation(s)
- Linlin Zhao
- Graduate School of Green Energy Technology, Chungnam National University, South Korea
| | - Tae-Hyun Kim
- Department of Nanobiomedical Science and WCU Research Center, Dankook University, South Korea
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea
| | - Kang Moo Huh
- Department of Polymer Science and Engineering, College of Engineering, Chungnam National University, South Korea
| | - Hae-Won Kim
- Department of Nanobiomedical Science and WCU Research Center, Dankook University, South Korea
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, South Korea
| | - So Yeon Kim
- Graduate School of Green Energy Technology, Chungnam National University, South Korea
- Department of Chemical Engineering Education, College of Education, Chungnam National University, South Korea
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Beija M, Salvayre R, Lauth-de Viguerie N, Marty JD. Colloidal systems for drug delivery: from design to therapy. Trends Biotechnol 2012; 30:485-96. [PMID: 22673692 DOI: 10.1016/j.tibtech.2012.04.008] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 04/25/2012] [Accepted: 04/26/2012] [Indexed: 01/18/2023]
Abstract
Nanomedicine, or medicine using nanometric devices, has emerged in the past decade as an exhilarating domain that can help to solve a number of problems linked to unsatisfactory therapeutic responses of so-called 'old drugs'. This dissatisfaction stems from inadequate biodistribution after a drug's application, which leads to a limited therapeutic response but also to numerous side effects to healthy organs. The biodistribution of drugs encapsulated in a nano object that will act as a vector can be modified to tune its therapeutic efficacy. This review provides a general overview of existing colloidal nanovectors: liposomes, polymeric micelles, polymeric vesicles, polymeric nanoparticles (NPs), and dendrimers. We describe their characteristics, advantages and drawbacks, and discuss their use in the treatment of various diseases.
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Affiliation(s)
- Mariana Beija
- Australian Centre For NanoMedicine (ACN), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
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Asymmetrical flow field-flow fractionation with multi-angle light scattering and quasi elastic light scattering for characterization of poly(ethyleneglycol-b-ɛ-caprolactone) block copolymer self-assemblies used as drug carriers for photodynamic therapy. J Chromatogr A 2011; 1218:4249-56. [DOI: 10.1016/j.chroma.2011.01.048] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Revised: 01/14/2011] [Accepted: 01/17/2011] [Indexed: 11/18/2022]
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