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Balukova A, Bokea K, Barber PR, Ameer-Beg SM, MacRobert AJ, Yaghini E. Cellular Imaging and Time-Domain FLIM Studies of Meso-Tetraphenylporphine Disulfonate as a Photosensitising Agent in 2D and 3D Models. Int J Mol Sci 2024; 25:4222. [PMID: 38673807 PMCID: PMC11050357 DOI: 10.3390/ijms25084222] [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: 03/04/2024] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/28/2024] Open
Abstract
Fluorescence lifetime imaging (FLIM) and confocal fluorescence studies of a porphyrin-based photosensitiser (meso-tetraphenylporphine disulfonate: TPPS2a) were evaluated in 2D monolayer cultures and 3D compressed collagen constructs of a human ovarian cancer cell line (HEY). TPPS2a is known to be an effective model photosensitiser for both Photodynamic Therapy (PDT) and Photochemical Internalisation (PCI). This microspectrofluorimetric study aimed firstly to investigate the uptake and subcellular localisation of TPPS2a, and evaluate the photo-oxidative mechanism using reactive oxygen species (ROS) and lipid peroxidation probes combined with appropriate ROS scavengers. Light-induced intracellular redistribution of TPPS2a was observed, consistent with rupture of endolysosomes where the porphyrin localises. Using the same range of light doses, time-lapse confocal imaging permitted observation of PDT-induced generation of ROS in both 2D and 3D cancer models using fluorescence-based ROS together with specific ROS inhibitors. In addition, the use of red light excitation of the photosensitiser to minimise auto-oxidation of the probes was investigated. In the second part of the study, the photophysical properties of TPPS2a in cells were studied using a time-domain FLIM system with time-correlated single photon counting detection. Owing to the high sensitivity and spatial resolution of this system, we acquired FLIM images that enabled the fluorescence lifetime determination of the porphyrin within the endolysosomal vesicles. Changes in the lifetime dynamics upon prolonged illumination were revealed as the vesicles degraded within the cells.
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Affiliation(s)
- Andrea Balukova
- Department of Surgical Biotechnology, Division of Surgery and Interventional Science, University College London, London NW3 2QG, UK; (A.B.); (K.B.)
| | - Kalliopi Bokea
- Department of Surgical Biotechnology, Division of Surgery and Interventional Science, University College London, London NW3 2QG, UK; (A.B.); (K.B.)
| | - Paul R. Barber
- Department of Oncology, UCL Cancer Institute, University College London, London WC1E 6DD, UK;
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, London SE1 9RT, UK;
| | - Simon M. Ameer-Beg
- Comprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, King’s College London, London SE1 9RT, UK;
| | - Alexander J. MacRobert
- Department of Surgical Biotechnology, Division of Surgery and Interventional Science, University College London, London NW3 2QG, UK; (A.B.); (K.B.)
| | - Elnaz Yaghini
- Department of Surgical Biotechnology, Division of Surgery and Interventional Science, University College London, London NW3 2QG, UK; (A.B.); (K.B.)
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2
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Soe TH, Watanabe K, Ohtsuki T. Photoinduced Endosomal Escape Mechanism: A View from Photochemical Internalization Mediated by CPP-Photosensitizer Conjugates. Molecules 2020; 26:E36. [PMID: 33374732 PMCID: PMC7793540 DOI: 10.3390/molecules26010036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/19/2020] [Accepted: 12/21/2020] [Indexed: 11/16/2022] Open
Abstract
Endosomal escape in cell-penetrating peptide (CPP)-based drug/macromolecule delivery systems is frequently insufficient. The CPP-fused molecules tend to remain trapped inside endosomes and end up being degraded rather than delivered into the cytosol. One of the methods for endosomal escape of CPP-fused molecules is photochemical internalization (PCI), which is based on the use of light and a photosensitizer and relies on photoinduced endosomal membrane destabilization to release the cargo molecule. Currently, it remains unclear how this delivery strategy behaves after photostimulation. Recent findings, including our studies using CPP-cargo-photosensitizer conjugates, have shed light on the photoinduced endosomal escape mechanism. In this review, we discuss the structural design of CPP-photosensitizer and CPP-cargo-photosensitizer conjugates, and the PCI mechanism underlying their application.
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Affiliation(s)
- Tet Htut Soe
- Department of Biotechnology, Mandalay Technological University, Patheingyi, Mandalay 05072, Myanmar;
| | - Kazunori Watanabe
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan;
| | - Takashi Ohtsuki
- Department of Interdisciplinary Science and Engineering in Health Systems, Okayama University, 3-1-1 Tsushimanaka, Okayama 700-8530, Japan;
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3
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Tsubone TM, Zhang Z, Goyal R, Santacruz C, Martins WK, Kohn J, Baptista MS. Porphyrin-Loaded TyroSpheres for the Intracellular Delivery of Drugs and Photoinduced Oxidant Species. Mol Pharm 2020; 17:2911-2924. [DOI: 10.1021/acs.molpharmaceut.0c00338] [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]
Affiliation(s)
- Tayana Mazin Tsubone
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo 05508-900, Brazil
| | - Zheng Zhang
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8009, United States
| | - Ritu Goyal
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8009, United States
| | - Carolina Santacruz
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo 05508-900, Brazil
| | | | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8009, United States
| | - Mauricio S. Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo 05508-900, Brazil
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4
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Mohammad Hadi L, Yaghini E, MacRobert AJ, Loizidou M. Synergy between Photodynamic Therapy and Dactinomycin Chemotherapy in 2D and 3D Ovarian Cancer Cell Cultures. Int J Mol Sci 2020; 21:E3203. [PMID: 32366058 PMCID: PMC7247344 DOI: 10.3390/ijms21093203] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 01/05/2023] Open
Abstract
In this study we explored the efficacy of combining low dose photodynamic therapy using a porphyrin photosensitiser and dactinomycin, a commonly used chemotherapeutic agent. The studies were carried out on compressed collagen 3D constructs of two human ovarian cancer cell lines (SKOV3 and HEY) versus their monolayer counterparts. An amphiphilc photosensitiser was employed, disulfonated tetraphenylporphine, which is not a substrate for ABC efflux transporters that can mediate drug resistance. The combination treatment was shown to be effective in both monolayer and 3D constructs of both cell lines, causing a significant and synergistic reduction in cell viability. Compared to dactinomycin alone or PDT alone, higher cell kill was found using 2D monolayer culture vs. 3D culture for the same doses. In 3D culture, the combination therapy resulted in 10 and 22 times higher cell kill in SKOV3 and HEY cells at the highest light dose compared to dactinomycin monotherapy, and 2.2 and 5.5 times higher cell kill than PDT alone. The combination of low dose PDT and dactinomycin appears to be a promising way to repurpose dactinomycin and widen its therapeutic applications.
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Affiliation(s)
- Layla Mohammad Hadi
- Division of Surgery & Interventional Science, Faculty of Medical Sciences, University College London, London NW3 2QG, UK; (E.Y.); (A.J.M.)
| | | | | | - Marilena Loizidou
- Division of Surgery & Interventional Science, Faculty of Medical Sciences, University College London, London NW3 2QG, UK; (E.Y.); (A.J.M.)
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5
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Photochemical Internalization for Intracellular Drug Delivery. From Basic Mechanisms to Clinical Research. J Clin Med 2020; 9:jcm9020528. [PMID: 32075165 PMCID: PMC7073817 DOI: 10.3390/jcm9020528] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/14/2020] [Accepted: 02/01/2020] [Indexed: 02/06/2023] Open
Abstract
Photochemical internalisation (PCI) is a unique intervention which involves the release of endocytosed macromolecules into the cytoplasmic matrix. PCI is based on the use of photosensitizers placed in endocytic vesicles that, following light activation, lead to rupture of the endocytic vesicles and the release of the macromolecules into the cytoplasmic matrix. This technology has been shown to improve the biological activity of a number of macromolecules that do not readily penetrate the plasma membrane, including type I ribosome-inactivating proteins (RIPs), gene-encoding plasmids, adenovirus and oligonucleotides and certain chemotherapeutics, such as bleomycin. This new intervention has also been found appealing for intracellular delivery of drugs incorporated into nanocarriers and for cancer vaccination. PCI is currently being evaluated in clinical trials. Data from the first-in-human phase I clinical trial as well as an update on the development of the PCI technology towards clinical practice is presented here.
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Yaghini E, Dondi R, Edler KJ, Loizidou M, MacRobert AJ, Eggleston IM. Codelivery of a cytotoxin and photosensitiser via a liposomal nanocarrier: a novel strategy for light-triggered cytosolic release. NANOSCALE 2018; 10:20366-20376. [PMID: 30376028 PMCID: PMC6251340 DOI: 10.1039/c8nr04048f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 10/17/2018] [Indexed: 05/22/2023]
Abstract
Endosomal entrapment is a key issue for the intracellular delivery of many nano-sized biotherapeutics to their cytosolic or nuclear targets. Photochemical internalisation (PCI) is a novel light-based solution that can be used to trigger the endosomal escape of a range of bioactive agents into the cytosol leading to improved efficacy in pre-clinical and clinical studies. PCI typically depends upon the endolysosomal colocalisation of the bioactive agent with a suitable photosensitiser that is administered separately. In this study we demonstrate that both these components may be combined for codelivery via a novel multifunctional liposomal nanocarrier, with a corresponding increase in the biological efficacy of the encapsulated agent. As proof of concept, we show here that the cytotoxicity of the 30 kDa protein toxin, saporin, in MC28 fibrosarcoma cells is significantly enhanced when delivered via a cell penetrating peptide (CPP)-modified liposome, with the CPP additionally functionalised with a photosensitiser that is targeted to endolysosomal membranes. This innovation opens the way for the efficient delivery of a range of biotherapeutics by the PCI approach, incorporating a clinically proven liposome delivery platform and using bioorthogonal ligation chemistries to append photosensitisers and peptides of choice.
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Affiliation(s)
- Elnaz Yaghini
- Division of Surgery and Interventional Science
, University College London
,
Royal Free Campus
, Rowland Hill Street
, London NW3 2PE
, UK
.
;
| | - Ruggero Dondi
- Department of Pharmacy and Pharmacology
, University of Bath
,
Bath BA2 7AY
, UK
.
| | - Karen J. Edler
- Department of Chemistry
, University of Bath
,
Bath BA2 7AY
, UK
| | - Marilena Loizidou
- Division of Surgery and Interventional Science
, University College London
,
Royal Free Campus
, Rowland Hill Street
, London NW3 2PE
, UK
.
;
| | - Alexander J. MacRobert
- Division of Surgery and Interventional Science
, University College London
,
Royal Free Campus
, Rowland Hill Street
, London NW3 2PE
, UK
.
;
| | - Ian M. Eggleston
- Department of Pharmacy and Pharmacology
, University of Bath
,
Bath BA2 7AY
, UK
.
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Cuccato N, Nardo L, Kristensen S, Hjorth Tønnesen H, Lilletvedt Tovsen M. Solubilization of the chlorin TPCS 2a in the presence of Pluronic ® F127/Tween 80 mixtures. Pharm Dev Technol 2018; 24:513-520. [PMID: 30136636 DOI: 10.1080/10837450.2018.1515955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The efficacy of surfactant mixtures of Pluronic® F127 and Tween 80 at overall concentration in the micromolar range and molar ratio 1:1, 1:10, and 10:1 in inhibiting aggregation of the photosensitizer meso-tetraphenyl chlorin disulphonate (TPCS2a) was investigated in aqueous media at pH 2.9 by means of steady-state absorption and fluorescence emission spectroscopy as well as time-resolved fluorescence analysis. Corresponding experiments were performed at pH 7.4 in the absence of surfactants to determine the spectroscopic properties of a monomeric sample. Aggregation resulted in a red shift of the Soret absorption band and in substantial fluorescence quenching. The fluorescence lifetime of TPCS2a was a particularly sensitive indicator of the aggregation state, as the monomer at pH 7.4 decayed with a ∼ 10 ns time constant, while aggregation resulted in subnanosecond decay. The critical micelle concentration (CMC) of the surfactant mixtures was determined spectrophotometrically in the presence of TPCS2a. The ability of the surfactant mixtures to prevent aggregation at acidic pH was evaluated at overall surfactant concentration below and above CMC. Solubilization of TPCS2a in Pluronic® F127/Tween 80 mixtures prevented aggregation of the photosensitizer at overall surfactant concentrations much lower than those needed for both pure Pluronic® F127 and pure Tween 80.
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Affiliation(s)
- Nicola Cuccato
- a Department of Science and High Technology , University of Insubria , Como , Italy
| | - Luca Nardo
- b Department of Medicine and Surgery , University of Milano Bicocca , Vedano al Lambro , Italy
| | - Solveig Kristensen
- c School of Pharmacy, Department of Pharmacy - Division Pharmaceutics - PharmaLuxLab , University of Oslo , Oslo , Norway
| | - Hanne Hjorth Tønnesen
- c School of Pharmacy, Department of Pharmacy - Division Pharmaceutics - PharmaLuxLab , University of Oslo , Oslo , Norway
| | - Marianne Lilletvedt Tovsen
- c School of Pharmacy, Department of Pharmacy - Division Pharmaceutics - PharmaLuxLab , University of Oslo , Oslo , Norway
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8
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Gederaas OA, Johnsson A, Berg K, Manandhar R, Shrestha C, Skåre D, Ekroll IK, Høgset A, Hjelde A. Photochemical internalization in bladder cancer - development of an orthotopic in vivo model. Photochem Photobiol Sci 2018; 16:1664-1676. [PMID: 28972608 DOI: 10.1039/c7pp00176b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The possibility of using photochemical internalization (PCI) to enhance the effects of the cytotoxic drug bleomycin is investigated, together with photophysical determination and outlines of a possible treatment for intravesical therapy of bladder cancer. In vitro experiments indicated that the employment of PCI technology using the novel photosensitizer TPCS2a® can enhance the cytotoxic effect of bleomycin in bladder cancer cells. Furthermore, experiments in an orthotopic in vivo bladder cancer model show an effective reduction in both the necrotic area and the bladder weight after TPCS2a based photodynamic therapy (PDT). The tumor selectivity and PDT effects may be sufficient to destroy tumors without damaging the detrusor muscle layer. Our results present a possible new treatment strategy for non-muscle invasive bladder cancer, with the intravesical instillation of the photosensitizer and bleomycin followed by illumination through an optic fiber by using a catheter.
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Affiliation(s)
- Odrun A Gederaas
- Department of Clinical and Molecular Medicine, NTNU, Norwegian University of Science and Technology, N-7491 Trondheim, Norway.
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9
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Tovsen ML, Tho I, Tønnesen HH. Viscosity reduction of isotonic solutions of the photosensitizer TPCS 2a by cyclodextrin complexation. Drug Dev Ind Pharm 2017; 44:261-265. [PMID: 28956453 DOI: 10.1080/03639045.2017.1386210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Meso-tetraphenyl chlorin disulphonate (TPCS2a) is a photosensitizer (PS) particularly developed and patented for use in the technology of photochemical internalization (PCI) against cancer. TPCS2a is known to aggregate in aqueous media even at low concentrations (≥0.1 µM) and to form a high-viscosity network at clinically relevant concentrations (mM). The aim of this work was to evaluate the effect of two hydroxypropylated cyclodextrin derivatives of beta and gamma type, respectively i.e. HPβCD and HPγCD, on the aggregation and solubilization of TPCS2a in isotonic solutions. Samples containing micromolar concentrations of TPCS2a were studied spectrophotometrically, while samples containing a clinical relevant concentration (10 mM = 9 mg/ml) of TPCS2a were evaluated by dynamic viscosity measurements. HPβCD was determined to be a more suitable solubilizer of TPCS2a than HPγCD in aqueous media both in the absence and presence of salt. The complexation stoichiometry between TPCS2a/HPβCD at micromolar to millimolar concentrations of TPCS2a was determined to be 1:3 and 1:2 in the absence and presence of isotonic NaCl, respectively. The network of TPCS2a (10 mM) was broken down in the presence of 3% w/v (= 20 mM) HPβCD, i.e. a 1:2 molar ratio between TPCS2a and the cyclodextrin. Formation of the inclusion complex resulted in low viscosity samples both in water and in the presence of isotonic NaCl or phosphate buffered saline (PBS) at 25 °C and 37 °C.
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Affiliation(s)
- Marianne Lilletvedt Tovsen
- a Division Pharmaceutics, PharmaLuxLab, Department of Pharmacy, School of Pharmacy , University of Oslo , Oslo , Norway
| | - Ingunn Tho
- a Division Pharmaceutics, PharmaLuxLab, Department of Pharmacy, School of Pharmacy , University of Oslo , Oslo , Norway
| | - Hanne Hjorth Tønnesen
- a Division Pharmaceutics, PharmaLuxLab, Department of Pharmacy, School of Pharmacy , University of Oslo , Oslo , Norway
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Wang J, Xie L, Wang T, Wu F, Meng J, Liu J, Xu H. Visible light-switched cytosol release of siRNA by amphiphilic fullerene derivative to enhance RNAi efficacy in vitro and in vivo. Acta Biomater 2017; 59:158-169. [PMID: 28511875 DOI: 10.1016/j.actbio.2017.05.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 05/10/2017] [Accepted: 05/12/2017] [Indexed: 10/19/2022]
Abstract
Cationic macromolecules are attractive for use as small interfering RNA (siRNA) carriers due to their performance in non-immunological reactions, customization during synthesis, and low costs compared to viral carriers. However, their low transfection efficiency substantially hinders their application in both clinical practices and academic research, which is mostly attributable to the low capacity of siRNA/cationic macromolecule complexes to escape lysosomes. To address this challenge, we designed an amphiphilic fullerene derivative (C60-Dex-NH2) for efficient and controllable siRNA delivery. To synthesize C60-Dex-NH2, terminally aminated dextran was conjugated to C60. The conjugate was further cationized by covalently introducing ethylenediamine to the dextran. The physicochemical characteristics of C60-Dex-NH2 was examined with elemental analyses, gel permeation chromatography, solid-state nuclear magnetic resonance (13C, HPDEC), agarose gel electrophoresis, and dynamic light scattering. The cytotoxicity, cellular uptake, intracellular distribution, and in vitro RNA interference (RNAi) of siRNA/C60-Dex-NH2 complex was evaluated in the human breast cancer cell line MDA-MB-231. The RNAi efficiencies mediated by C60-Dex-NH2in vivo was evaluated in subcutaneous tumor-bearing mice. The results showed that C60-Dex-NH2 has a specific amphiphilic skeleton and could form micelle-like aggregate structures in water, which could prevent siRNA from destroying by reactive oxygen species (ROS). When exposed to visible light, C60-Dex-NH2 could trigger controllable ROS generation which could destroy the lysosome membrane, promote the lysosomal escape, and enhance the gene silencing efficiency of siRNA in vitro and in vivo. The gene silencing efficiency could reach a maximum of 53% in the MDA-MB-231-EGFP cells and 69% in the 4T1-GFP-Luc2 tumor-bearing mice. STATEMENT OF SIGNIFICANCE We designed a novel photosensitive amphiphilic carrier (C60-Dex-NH2) for efficient and controllable siRNA delivery, which can be used in gene therapy. We showed that C60-Dex-NH2 could destroy lysosome membrane via controllable generation of ROS when exposed to light, which can help siRNA to escape from lysosome before degradation. This can enhance the gene silencing efficiency significantly and provides a useful way to regulate RNAi efficiency by light. One advantage for C60-Dex-NH2 system is C60 has broad absorbance spectrum and can be activated by weak visible light; Furthermore, C60-Dex-NH2 has a specific amphiphilic structure, which may prevent siRNA from degrading and allows C60-Dex-NH2 to embed into the lipid membrane of lysosome to improve the ROS induced lysosomal disturbance after internalization.
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11
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Could clinical photochemical internalisation be optimised to avoid neuronal toxicity? Int J Pharm 2017; 528:133-143. [PMID: 28579544 PMCID: PMC5571751 DOI: 10.1016/j.ijpharm.2017.05.071] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 05/27/2017] [Accepted: 05/29/2017] [Indexed: 01/01/2023]
Abstract
Photochemical Internalisation (PCI) is a novel drug delivery technology in which low dose photodynamic therapy (PDT) can selectively rupture endo/lysosomes by light activation of membrane-incorporated photosensitisers, facilitating intracellular drug release in the treatment of cancer. For PCI to be developed further, it is important to understand whether nerve damage is an impending side effect when treating cancers within or adjacent to nervous system tissue. Dorsal root ganglion (DRG) neurons and their associated satellite glia were subjected to PCI treatment in a 3D co-culture system following incubation with photosensitisers: meso-tetraphenylporphine (TPPS2a) or tetraphenylchlorin disulfonate (TPCS2a) and Bleomycin. Results from the use of 3D co-culture models demonstrate that a cancer cell line PCI30 and satellite glia were more sensitive to PCI than neurons and mixed glial cells, athough neurite length was affected. Neurons in culture survived PCI treatment under conditions sufficient to kill tumour cells, suggesting cancers within or adjacent to nervous system tissue could be treated with this novel technology.
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12
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Martinez de Pinillos Bayona A, Woodhams JH, Pye H, Hamoudi RA, Moore CM, MacRobert AJ. Efficacy of photochemical internalisation using disulfonated chlorin and porphyrin photosensitisers: An in vitro study in 2D and 3D prostate cancer models. Cancer Lett 2017; 393:68-75. [PMID: 28223166 PMCID: PMC5360193 DOI: 10.1016/j.canlet.2017.02.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 02/13/2017] [Accepted: 02/13/2017] [Indexed: 12/16/2022]
Abstract
This study shows the therapeutic outcome of Photochemical Internalisation (PCI) in prostate cancer in vitro surpasses that of Photodynamic Therapy (PDT) and could improve prostate PDT in the clinic, whilst avoiding chemotherapeutics side effects. In addition, the study assesses the potential of PCI with two different photosensitisers (TPCS2a and TPPS2a) in prostate cancer cells (human PC3 and rat MatLyLu) using standard 2D monolayer culture and 3D biomimetic model. Photosensitisers were used alone for photodynamic therapy (PDT) or with the cytotoxin saporin (PCI). TPPS2a and TPCS2a were shown to be located in discrete cytoplasmic vesicles before light treatment and redistribute into the cytosol upon light excitation. PC3 cells exhibit a higher uptake than MatLyLu cells for both photosensitisers. In the 2D model, PCI resulted in greater cell death than PDT alone in both cell lines. In 3D model, morphological changes were also observed. Saporin-based toxicity was negligible in PC3 cells, but pronounced in MatLyLu cells (IC50 = 18 nM). In conclusion, the study showed that tumour features such as tumour cell growth rate or interaction with drugs determine therapeutic conditions for optimal photochemical treatment in metastatic prostate cancer. The efficacy of PCI surpasses that of PDT in vitro. PCI could improve prostate cancer treatment and minimise side effects. 3D model observations confirm findings in previous 2D PCI investigations. Tumour features (i.e. doubling rate, interaction with drugs) will determine conditions for optimal photochemical treatment.
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Affiliation(s)
| | - Josephine H Woodhams
- Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
| | - Hayley Pye
- Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
| | - Rifat A Hamoudi
- Division of Surgery and Interventional Sciences, University College London, London, United Kingdom; College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Caroline M Moore
- Division of Surgery and Interventional Sciences, University College London, London, United Kingdom; Department of Urology, University College London Hospital, London, United Kingdom
| | - Alexander J MacRobert
- Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
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13
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Martinez de Pinillos Bayona A, Moore CM, Loizidou M, MacRobert AJ, Woodhams JH. Enhancing the efficacy of cytotoxic agents for cancer therapy using photochemical internalisation. Int J Cancer 2015; 138:1049-57. [PMID: 25758607 PMCID: PMC4973841 DOI: 10.1002/ijc.29510] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 02/26/2015] [Indexed: 12/22/2022]
Abstract
Photochemical internalisation (PCI) is a technique for improving cellular delivery of certain bioactive agents which are prone to sequestration within endolysosomes. There is a wide range of agents suitable for PCI‐based delivery including toxins, oligonucleotides, genes and immunoconjugates which demonstrates the versatility of this technique. The basic mechanism of PCI involves triggering release of the agent from endolysosomes within the target cells using a photosensitiser which is selectively retained with the endolysosomal membranes. Excitation of the photosensitiser by visible light leads to disruption of the membranes via photooxidative damage thereby releasing the agent into the cytosol. This treatment enables the drugs to reach their intended subcellular target more efficiently and improves their efficacy. In this review we summarise the applications of this technique with the main emphasis placed on cancer chemotherapy.
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Affiliation(s)
| | - Caroline M Moore
- UCL Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
| | - Marilena Loizidou
- UCL Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
| | - Alexander J MacRobert
- UCL Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
| | - Josephine H Woodhams
- UCL Division of Surgery and Interventional Sciences, University College London, London, United Kingdom
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14
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Baglo Y, Peng Q, Hagen L, Berg K, Høgset A, Drabløs F, Gederaas OA. Studies of the photosensitizer disulfonated meso-tetraphenyl chlorin in an orthotopic rat bladder tumor model. Photodiagnosis Photodyn Ther 2015; 12:58-66. [DOI: 10.1016/j.pdpdt.2014.12.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 12/18/2014] [Accepted: 12/19/2014] [Indexed: 12/21/2022]
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Silva AKA, Luciani N, Gazeau F, Aubertin K, Bonneau S, Chauvierre C, Letourneur D, Wilhelm C. Combining magnetic nanoparticles with cell derived microvesicles for drug loading and targeting. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:645-55. [PMID: 25596340 DOI: 10.1016/j.nano.2014.11.009] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 10/31/2014] [Accepted: 11/19/2014] [Indexed: 02/08/2023]
Abstract
Inspired by microvesicle-mediated intercellular communication, we propose a hybrid vector for magnetic drug delivery. It consists of macrophage-derived microvesicles engineered to enclose different therapeutic agents together with iron oxide nanoparticles. Here, we investigated in vitro how magnetic nanoparticles may influence the vector effectiveness in terms of drug uptake and targeting. Human macrophages were loaded with iron oxide nanoparticles and different therapeutic agents: a chemotherapeutic agent (doxorubicin), tissue-plasminogen activator (t-PA) and two photosensitizers (disulfonated tetraphenyl chlorin-TPCS2a and 5,10,15,20-tetra(m-hydroxyphenyl)chlorin-mTHPC). The hybrid cell microvesicles were magnetically responsive, readily manipulated by magnetic forces and MRI-detectable. Using photosensitizer-loaded vesicles, we showed that the uptake of microvesicles by cancer cells could be kinetically modulated and spatially controlled under magnetic field and that cancer cell death was enhanced by the magnetic targeting. From the clinical editor: In this article, the authors devised a biogenic method using macrophages to produce microvesicles containing both iron oxide and chemotherapeutic agents. They showed that the microvesicles could be manipulated by magnetic force for targeting and subsequent delivery of the drug payload against cancer cells. This smart method could provide a novel way for future fight against cancer.
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Affiliation(s)
- Amanda K A Silva
- Laboratoire Matière et Systèmes Complexes, UMR 7057, CNRS and Université Paris Diderot, France; Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, Université Paris Diderot Paris, France; Université Paris 13, Sorbonne Paris Cité, France
| | - Nathalie Luciani
- Laboratoire Matière et Systèmes Complexes, UMR 7057, CNRS and Université Paris Diderot, France
| | - Florence Gazeau
- Laboratoire Matière et Systèmes Complexes, UMR 7057, CNRS and Université Paris Diderot, France
| | - Kelly Aubertin
- Laboratoire Matière et Systèmes Complexes, UMR 7057, CNRS and Université Paris Diderot, France
| | - Stéphanie Bonneau
- Laboratoire Jean Perrin-CNRS FRE3231, Université Pierre et Marie Curie-Paris 6, France
| | - Cédric Chauvierre
- Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, Université Paris Diderot Paris, France; Université Paris 13, Sorbonne Paris Cité, France
| | - Didier Letourneur
- Inserm, U1148, Cardiovascular Bio-Engineering, X. Bichat Hospital, Université Paris Diderot Paris, France; Université Paris 13, Sorbonne Paris Cité, France
| | - Claire Wilhelm
- Laboratoire Matière et Systèmes Complexes, UMR 7057, CNRS and Université Paris Diderot, France.
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Enhanced efficacy of bleomycin in bladder cancer cells by photochemical internalization. BIOMED RESEARCH INTERNATIONAL 2014; 2014:921296. [PMID: 25101299 PMCID: PMC4101207 DOI: 10.1155/2014/921296] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2014] [Revised: 05/29/2014] [Accepted: 05/29/2014] [Indexed: 01/18/2023]
Abstract
Bleomycin is a cytotoxic chemotherapeutic agent widely used in cancer treatment. However, its efficacy in different cancers is low, possibly due to limited cellular internalization. In this study, a novel approach known as photochemical internalization (PCI) was explored to enhance bleomycin delivery in bladder cancer cells (human T24 and rat AY-27), as bladder cancer is a potential indication for use of PCI with bleomycin. The PCI technique was mediated by the amphiphilic photosensitizer disulfonated tetraphenyl chlorin (TPCS2a) and blue light (435 nm). Two additional strategies were explored to further enhance the cytotoxicity of bleomycin; a novel peptide drug ATX-101 which is known to impair DNA damage responses, and the protease inhibitor E-64 which may reduce bleomycin degradation by inhibition of bleomycin hydrolase. Our results demonstrate that the PCI technique enhances the bleomycin effect under appropriate conditions, and importantly we show that PCI-bleomycin treatment leads to increased levels of DNA damage supporting that the observed effect is due to increased bleomycin uptake. Impairing the DNA damage responses by ATX-101 further enhances the efficacy of the PCI-bleomycin treatment, while inhibiting the bleomycin hydrolase does not.
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Yaghini E, Giuntini F, Eggleston IM, Suhling K, Seifalian AM, MacRobert AJ. Fluorescence lifetime imaging and FRET-induced intracellular redistribution of Tat-conjugated quantum dot nanoparticles through interaction with a phthalocyanine photosensitiser. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:782-792. [PMID: 24031023 DOI: 10.1002/smll.201301459] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/02/2013] [Indexed: 06/02/2023]
Abstract
The interaction of Tat-conjugated PEGylated CdSe/ZnS quantum dots (QD) with the amphiphilic disulfonated aluminium phthalocyanine photosensitiser is investigated in aqueous solution and in a human breast cancer cell line. In aqueous solution, the QDs and phthalocyanine form stable nanocomposites. Using steady-state and time-resolved fluorescence measurements combined with singlet oxygen detection, efficient Förster resonance energy transfer (FRET) is observed with the QDs acting as donors, and the phthalocyanine photosensitiser, which mediates production of singlet oxygen, as acceptors. In cells, the Tat-conjugated QDs localise in lysosomes and the QD fluorescence lifetimes are close to values observed in aqueous solution. Strong FRET-induced quenching of the QD lifetime is observed in cells incubated with the nanocomposites using fluorescence lifetime imaging microscopy (FLIM). Using excitation of the QDs at wavelengths where phthalocyanine absorption is negligible, FRET-induced release of QDs from endo/lysosomes is confirmed using confocal imaging and FLIM, which is attributed to photooxidative damage to the endo/lysosomal membranes mediated by the phthalocyanine acceptor.
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Affiliation(s)
- Elnaz Yaghini
- National Medical Laser Centre, Division of Surgery & Interventional Science and UCL Institute for Biomedical Engineering, University College London, London, UK
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Aubertin K, Bonneau S, Silva AKA, Bacri JC, Gallet F, Wilhelm C. Impact of photosensitizers activation on intracellular trafficking and viscosity. PLoS One 2013; 8:e84850. [PMID: 24386423 PMCID: PMC3874004 DOI: 10.1371/journal.pone.0084850] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Accepted: 11/19/2013] [Indexed: 11/19/2022] Open
Abstract
The intracellular microenvironment is essential for the efficiency of photo-induced therapies, as short-lived reactive oxygen species generated must diffuse through their intracellular surrounding medium to reach their cellular target. Here, by combining measurements of local cytoplasmic dissipation and active trafficking, we found that photosensitizers activation induced small changes in surrounding viscosity but a massive decrease in diffusion. These effects are the signature of a return to thermodynamic equilibrium of the system after photo-activation and correlated with depolymerization of the microtubule network, as shown in a reconstituted system. These mechanical measurements were performed with two intracellular photosensitizing chlorins having similar quantum yield of singlet oxygen production but different intracellular localizations (cytoplasmic for mTHPC, endosomal for TPCS2a). These two agents demonstrated different intracellular impact.
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Affiliation(s)
- Kelly Aubertin
- Laboratoire Matière et Systèmes Complexes (MSC), CNRS and Université Paris Diderot, Paris, France
| | - Stéphanie Bonneau
- Laboratoire Jean Perrin-CNRS, Université Pierre et Marie Curie, Paris 6, Paris, France
| | - Amanda K. A. Silva
- Laboratoire Matière et Systèmes Complexes (MSC), CNRS and Université Paris Diderot, Paris, France
| | - Jean-Claude Bacri
- Laboratoire Matière et Systèmes Complexes (MSC), CNRS and Université Paris Diderot, Paris, France
| | - François Gallet
- Laboratoire Matière et Systèmes Complexes (MSC), CNRS and Université Paris Diderot, Paris, France
| | - Claire Wilhelm
- Laboratoire Matière et Systèmes Complexes (MSC), CNRS and Université Paris Diderot, Paris, France
- * E-mail:
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Chen H, Xiao L, Anraku Y, Mi P, Liu X, Cabral H, Inoue A, Nomoto T, Kishimura A, Nishiyama N, Kataoka K. Polyion Complex Vesicles for Photoinduced Intracellular Delivery of Amphiphilic Photosensitizer. J Am Chem Soc 2013; 136:157-63. [DOI: 10.1021/ja406992w] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Huabing Chen
- Jiangsu
Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases,
and College of Pharmaceutical Sciences, Soochow University, Suzhou 215123, China
- Department
of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-8656, Japan
| | - Ling Xiao
- Center
for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-0033, Japan
| | - Yasutaka Anraku
- Department
of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-8656, Japan
| | - Peng Mi
- Department
of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Xueying Liu
- Center
for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-0033, Japan
| | - Horacio Cabral
- Department
of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Aki Inoue
- Department
of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-8656, Japan
| | - Takahiro Nomoto
- Department
of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Akihiro Kishimura
- Department
of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-8656, Japan
- Center for Molecular Systems & Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Nobuhiro Nishiyama
- Center for
NanoBio Integration (CNBI), The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Polymer
Chemistry Division, Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Kazunori Kataoka
- Department
of Materials Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-8656, Japan
- Center
for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,
Tokyo 113-0033, Japan
- Department
of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Center for
NanoBio Integration (CNBI), The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Barbosa Neto N, Correa D, De Boni L, Parra G, Misoguti L, Mendonça C, Borissevitch I, Zílio S, Gonçalves P. Excited states absorption spectra of porphyrins – Solvent effects. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.09.066] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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