1
|
Bregnhøj M, Thorning F, Ogilby PR. Singlet Oxygen Photophysics: From Liquid Solvents to Mammalian Cells. Chem Rev 2024. [PMID: 39106038 DOI: 10.1021/acs.chemrev.4c00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2024]
Abstract
Molecular oxygen, O2, has long provided a cornerstone for studies in chemistry, physics, and biology. Although the triplet ground state, O2(X3Σg-), has garnered much attention, the lowest excited electronic state, O2(a1Δg), commonly called singlet oxygen, has attracted appreciable interest, principally because of its unique chemical reactivity in systems ranging from the Earth's atmosphere to biological cells. Because O2(a1Δg) can be produced and deactivated in processes that involve light, the photophysics of O2(a1Δg) are equally important. Moreover, pathways for O2(a1Δg) deactivation that regenerate O2(X3Σg-), which address fundamental principles unto themselves, kinetically compete with the chemical reactions of O2(a1Δg) and, thus, have practical significance. Due to technological advances (e.g., lasers, optical detectors, microscopes), data acquired in the past ∼20 years have increased our understanding of O2(a1Δg) photophysics appreciably and facilitated both spatial and temporal control over the behavior of O2(a1Δg). One goal of this Review is to summarize recent developments that have broad ramifications, focusing on systems in which oxygen forms a contact complex with an organic molecule M (e.g., a liquid solvent). An important concept is the role played by the M+•O2-• charge-transfer state in both the formation and deactivation of O2(a1Δg).
Collapse
Affiliation(s)
- Mikkel Bregnhøj
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
| | - Frederik Thorning
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
| | - Peter R Ogilby
- Department of Chemistry, Aarhus University, 140 Langelandsgade, Aarhus 8000, Denmark
| |
Collapse
|
2
|
Goggin FL, Fischer HD. Singlet oxygen signalling and its potential roles in plant biotic interactions. PLANT, CELL & ENVIRONMENT 2024; 47:1957-1970. [PMID: 38372069 DOI: 10.1111/pce.14851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/20/2024]
Abstract
Singlet oxygen (SO) is among the most potent reactive oxygen species, and readily oxidizes proteins, lipids and DNA. It can be generated at the plant surface by phototoxins in the epidermis, acting as a direct defense against pathogens and herbivores (including humans). SO can also accumulate within mitochondria, peroxisomes, cytosol and the nucleus through multiple enzymatic and nonenzymatic processes. However, the majority of research on intracellular SO generation in plants has focused on transfer of light energy to triplet oxygen by photopigments from the chloroplast. SO accumulates in response to diverse stresses that perturb chloroplast metabolism, and while its high reactivity limits diffusion distances, it participates in retrograde signalling through the EXECUTER1 sensor, generation of carotenoid metabolites and possibly other unknown pathways. SO thereby reprogrammes nuclear gene expression and modulates hormone signalling and programmed cell death. While SO signalling has long been known to regulate plant responses to high-light stress, recent literature also suggests a role in plant interactions with insects, bacteria and fungi. The goals of this review are to provide a brief overview of SO, summarize evidence for its involvement in biotic stress responses and discuss future directions for the study of SO in defense signalling.
Collapse
Affiliation(s)
- Fiona L Goggin
- Department of Entomology and Plant Pathology, University of Arkansas System Division of Agriculture, Fayetteville, Arkansas, USA
| | - Hillary D Fischer
- Department of Entomology and Plant Pathology, University of Arkansas System Division of Agriculture, Fayetteville, Arkansas, USA
| |
Collapse
|
3
|
Xin L, Luo Z, Liu X, Huang Z. Unveiling the Spatiotemporal and Dose Responses within a Single Live Cancer Cell to Photoswitchable Upconversion Nanoparticle Therapeutics Using Hybrid Hyperspectral Stimulated Raman Scattering and Transient Absorption Microscopy. Anal Chem 2024; 96:6148-6157. [PMID: 38603515 DOI: 10.1021/acs.analchem.3c04898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Photodynamic therapy (PDT) provides an alternative approach to targeted cancer treatment, but the therapeutic mechanism of advanced nanodrugs applied to live cells and tissue is still not well understood. Herein, we employ the hybrid hyperspectral stimulated Raman scattering (SRS) and transient absorption (TA) microscopy developed for real-time in vivo visualization of the dynamic interplay between the unique photoswichable lanthanide-doped upconversion nanoparticle-conjugated rose bengal and triphenylphosphonium (LD-UCNP@CS-Rb-TPP) probe synthesized and live cancer cells. The Langmuir pharmacokinetic model associated with SRS/TA imaging is built to quantitatively track the uptakes and pharmacokinetics of LD-UCNP@CS-Rb-TPP within cancer cells. Rapid SRS/TA imaging quantifies the endocytic internalization rates of the LD-UCNP@CS-Rb-TPP probe in individual HeLa cells, and the translocation of LD-UCNP@CS-Rb-TPP from mitochondria to cell nuclei monitored during PDT can be associated with mitochondria fragmentations and the increased nuclear membrane permeability, cascading the dual organelle ablations in cancer cells. The real-time SRS spectral changes of cellular components (e.g., proteins, lipids, and DNA) observed reflect the PDT-induced oxidative damage and the dose-dependent death pattern within a single live cancer cell, thereby facilitating the real-time screening of optimal light dose and illumination duration controls in PDT. This study provides new insights into the further understanding of drug delivery and therapeutic mechanisms of photoswitchable LD-UCNP nanomedicine in live cancer cells, which are critical in the optimization of nanodrug formulations and development of precision cancer treatment in PDT.
Collapse
Affiliation(s)
- Le Xin
- Optical Bioimaging Laboratory, Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, 117576 Singapore
| | - Zichao Luo
- Department of Chemistry and the N.1 Institute for Health, National University of Singapore, 117543 Singapore
| | - Xiaogang Liu
- Department of Chemistry and the N.1 Institute for Health, National University of Singapore, 117543 Singapore
| | - Zhiwei Huang
- Optical Bioimaging Laboratory, Department of Biomedical Engineering, College of Design and Engineering, National University of Singapore, 117576 Singapore
| |
Collapse
|
4
|
Hovan A, Pevna V, Huntosova V, Miskovsky P, Bánó G. Singlet oxygen lifetime changes in dying glioblastoma cells. Photochem Photobiol 2024; 100:159-171. [PMID: 37357990 DOI: 10.1111/php.13828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 06/07/2023] [Indexed: 06/27/2023]
Abstract
Time-resolved phosphorescence detection was employed to determine the lifetime of singlet oxygen in live cells. Using hypericin as a photosensitizer, singlet oxygen was generated in U87MG glioblastoma cells. The phosphorescence of singlet oxygen was detected in aqueous cell suspensions following pulsed laser excitation. Our goal was to eliminate or reduce the problems associated with lifetime measurements in water-based cell suspensions. The apparatus enabled simultaneous singlet oxygen phosphorescence and transient absorption measurements, reducing uncertainty in lifetime estimation. The changes in singlet oxygen lifetime were observed during early and late apoptosis induced by photodynamic action. Our findings show that the effective lifetime of singlet oxygen in the intracellular space of the studied glioblastoma cells is 0.4 μs and increases to 1.5 μs as apoptosis progresses. Another group of hypericin, presumably located in the membrane blebs and the plasma membrane of apoptotic cells, generates singlet oxygen with a lifetime of 1.9 μs.
Collapse
Affiliation(s)
- Andrej Hovan
- Department of Biophysics, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovak Republic
| | - Viktoria Pevna
- Department of Biophysics, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovak Republic
| | - Veronika Huntosova
- Center for Interdisciplinary Biosciences, Technology and Innovation Park, P.J. Šafárik University in Košice, Košice, Slovak Republic
| | - Pavol Miskovsky
- Cassovia New Industry Cluster, Košice, Slovak Republic
- SAFTRA Photonics Ltd., Košice, Slovak Republic
| | - Gregor Bánó
- Department of Biophysics, Faculty of Science, P.J. Šafárik University in Košice, Košice, Slovak Republic
| |
Collapse
|
5
|
Baptista MS, Cadet J, Greer A, Thomas AH. Practical Aspects in the Study of Biological Photosensitization Including Reaction Mechanisms and Product Analyses: A Do's and Don'ts Guide †. Photochem Photobiol 2022; 99:313-334. [PMID: 36575651 DOI: 10.1111/php.13774] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 12/24/2022] [Indexed: 12/29/2022]
Abstract
The interaction of light with natural matter leads to a plethora of photosensitized reactions. These reactions cause the degradation of biomolecules, such as DNA, lipids, proteins, being therefore detrimental to the living organisms, or they can also be beneficial by allowing the treatment of several diseases by photomedicine. Based on the molecular mechanistic understanding of the photosensitization reactions, we propose to classify them in four processes: oxygen-dependent (type I and type II processes) and oxygen-independent [triplet-triplet energy transfer (TTET) and photoadduct formation]. In here, these processes are discussed by considering a wide variety of approaches including time-resolved and steady-state techniques, together with solvent, quencher, and scavenger effects. The main aim of this survey is to provide a description of general techniques and approaches that can be used to investigate photosensitization reactions of biomolecules together with basic recommendations on good practices. Illustration of the suitability of these approaches is provided by the measurement of key biomarkers of singlet oxygen and one-electron oxidation reactions in both isolated and cellular DNA. Our work is an educational review that is mostly addressed to students and beginners.
Collapse
Affiliation(s)
- Maurício S Baptista
- Department of Biochemistry, Institute of Chemistry, Universidade de São Paulo, São Paulo, Brazil
| | - Jean Cadet
- Département de Médecine Nucléaire et de Radiobiologie, Université de Sherbrooke, Sherbrooke, Québec, Canada
| | - Alexander Greer
- Department of Chemistry, Brooklyn College, Brooklyn, New York, USA.,Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, New York, USA
| | - Andrés H Thomas
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), CCT La Plata-CONICET, La Plata, Argentina
| |
Collapse
|
6
|
Li Y, Cui ZJ. Photodynamic Activation of the Cholecystokinin 1 Receptor with Tagged Genetically Encoded Protein Photosensitizers: Optimizing the Tagging Patterns. Photochem Photobiol 2022; 98:1215-1228. [PMID: 35211987 DOI: 10.1111/php.13611] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/20/2022] [Indexed: 02/05/2023]
Abstract
Cholecystokinin 1 receptor (CCK1R) is activated photodynamically. For this to happen in situ, genetically encoded protein photosensitizers (GEPP) may be tagged to natively expressed CCK1R, but how to best tag GEPP has not been examined. Therefore, GEPP (miniSOG or KillerRed) was tagged to CCK1R and light-driven photodynamic CCK1R activation was monitored by Fura-2 fluorescent calcium imaging, to screen for optimized tagging patterns. Blue light-emitting diode irradiation of CHO-K1 cells expressing miniSOG fused to N- or C-terminus of CCK1R was found to both trigger persistent calcium oscillations-a hallmark of permanent photodynamic CCK1R activation. Photodynamic CCK1R activation was accomplished also with miniSOG fused to N-terminus of CCK1R via linker (GlySerGly)4 or 8 , but not linker (GSG)12 or an internal ribosomal entry site insert. KillerRed fused to N- or C-terminus of CCK1R after white light irradiation resulted in similar activation of in-frame CCK1R. Photodynamic CCK1R activation in miniSOG-CCK1R-CHO-K1 cells was blocked by singlet oxygen (1 O2 ) quencher uric acid or Trolox C, corroborating the role of 1 O2 as the reactive intermediate. It is concluded that photodynamic CCK1R activation can be achieved either with direct GEPP fusion to CCK1R or fusion via a short linker, fusion via long linkers might serve as the internal control.
Collapse
Affiliation(s)
- Yuan Li
- Institute of Cell Biology, Beijing Normal University, Beijing, China
| | - Zong Jie Cui
- Institute of Cell Biology, Beijing Normal University, Beijing, China
| |
Collapse
|
7
|
Amphiphilic Protoporphyrin IX Derivatives as New Photosensitizing Agents for the Improvement of Photodynamic Therapy. Biomedicines 2022; 10:biomedicines10020423. [PMID: 35203632 PMCID: PMC8962274 DOI: 10.3390/biomedicines10020423] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/28/2022] [Accepted: 02/04/2022] [Indexed: 11/16/2022] Open
Abstract
Photodynamic therapy (PDT) is a non-invasive therapeutic modality based on the interaction between a photosensitive molecule called photosensitizer (PS) and visible light irradiation in the presence of oxygen molecule. Protoporphyrin IX (PpIX), an efficient and widely used PS, is hampered in clinical PDT by its poor water-solubility and tendency to self-aggregate. These features are strongly related to the PS hydrophilic–lipophilic balance. In order to improve the chemical properties of PpIX, a series of amphiphilic PpIX derivatives endowed with PEG550 headgroups and hydrogenated or fluorinated tails was synthetized. Hydrophilic–lipophilic balance (HLB) and log p-values were computed for all of the prepared compounds. Their photochemical properties (spectroscopic characterization, photobleaching, and singlet oxygen quantum yield) were also evaluated followed by the in vitro studies of their cellular uptake, subcellular localization, and photocytotoxicity on three tumor cell lines (4T1, scc-U8, and WiDr cell lines). The results confirm the therapeutic potency of these new PpIX derivatives. Indeed, while all of the derivatives were perfectly water soluble, some of them exhibited an improved photodynamic effect compared to the parent PpIX.
Collapse
|
8
|
Delcanale P, Abbruzzetti S, Viappiani C. Photodynamic treatment of pathogens. LA RIVISTA DEL NUOVO CIMENTO 2022; 45:407-459. [PMCID: PMC8921710 DOI: 10.1007/s40766-022-00031-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/10/2022] [Indexed: 06/01/2023]
Abstract
The current viral pandemic has highlighted the compelling need for effective and versatile treatments, that can be quickly tuned to tackle new threats, and are robust against mutations. Development of such treatments is made even more urgent in view of the decreasing effectiveness of current antibiotics, that makes microbial infections the next emerging global threat. Photodynamic effect is one such method. It relies on physical processes proceeding from excited states of particular organic molecules, called photosensitizers, generated upon absorption of visible or near infrared light. The excited states of these molecules, tailored to undergo efficient intersystem crossing, interact with molecular oxygen and generate short lived reactive oxygen species (ROS), mostly singlet oxygen. These species are highly cytotoxic through non-specific oxidation reactions and constitute the basis of the treatment. In spite of the apparent simplicity of the principle, the method still has to face important challenges. For instance, the short lifetime of ROS means that the photosensitizer must reach the target within a few tens nanometers, which requires proper molecular engineering at the nanoscale level. Photoactive nanostructures thus engineered should ideally comprise a functionality that turns the system into a theranostic means, for instance, through introduction of fluorophores suitable for nanoscopy. We discuss the principles of the method and the current molecular strategies that have been and still are being explored in antimicrobial and antiviral photodynamic treatment.
Collapse
Affiliation(s)
- Pietro Delcanale
- Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università degli Studi di Parma, Parco Area delle Scienze 7A, 43124 Parma, Italy
| | - Stefania Abbruzzetti
- Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università degli Studi di Parma, Parco Area delle Scienze 7A, 43124 Parma, Italy
| | - Cristiano Viappiani
- Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università degli Studi di Parma, Parco Area delle Scienze 7A, 43124 Parma, Italy
| |
Collapse
|
9
|
Lang Y, Wu S, Yang Q, Luo Y, Jiang X, Wu P. Analysis of the Isotopic Purity of D 2O with the Characteristic NIR-II Phosphorescence of Singlet Oxygen from a Photostable Polythiophene Photosensitizer. Anal Chem 2021; 93:9737-9743. [PMID: 34235917 DOI: 10.1021/acs.analchem.1c01160] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
D2O plays important roles in a variety of fields (such as the nuclear industry and bioorganic analysis), and thus its isotopic purity (H2O contents) is highly concerned. Due to its highly similar physical properties to H2O and large excess amounts of H2O over D2O, it is challenging to distinguish D2O from H2O. On the basis of the characteristic NIR-II phosphorescence of singlet oxygen (1O2), and the fact that H2O is a more efficient quencher for 1O2 than D2O, here, we proposed to simply use the 1275 nm emission of 1O2 for the analysis of the isotopic purity of D2O. In normal cases (a xenon lamp for excitation), such steady-state emission is extremely weak for valid analytical applications, we thus employed laser excitation for intensification. To this goal, a series of photosensitizers were screened, and eventually polythiophene PT10 was selected with high singlet oxygen quantum yield (ΦΔ = 0.51), high H2O/D2O contrast, and excellent photostability. Upon excitation with a 445 nm laser, a limit of detection (LOD, 3σ) of 0.1% for H2O in D2O was achieved. The accuracy of the proposed method was verified by the analysis of the isotopic purity of several D2O samples (with randomly added H2O). More interestingly, the hygroscopicity of D2O was sensitively monitored with the proposed probe in a real-time manner; the results of which are important for strengthening the care of D2O storage and the importance of humidity control during related investigations. Besides D2O isotopic purity evaluation, this work also indicated the potential usefulness of the NIR-II emission of singlet oxygen in future analytical detection.
Collapse
|
10
|
Mogensen DJ, Westberg M, Breitenbach T, Etzerodt M, Ogilby PR. Stable Transfection of the Singlet Oxygen Photosensitizing Protein SOPP3: Examining Aspects of Intracellular Behavior †. Photochem Photobiol 2021; 97:1417-1430. [PMID: 33934354 DOI: 10.1111/php.13440] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 04/26/2021] [Indexed: 01/28/2023]
Abstract
Protein-encased chromophores that photosensitize the production of reactive oxygen species, ROS, have been the center of recent activity in studies of oxidative stress. One potential attribute of such systems is that the local environment surrounding the chromophore, and that determines the chromophore's photophysics, ideally remains constant and independent of the global environment into which the system is placed. Therefore, a protein-encased sensitizer localized in the mitochondria would arguably have the same photophysics as that protein-encased sensitizer at the plasma membrane, for example. One thus obtains a useful tool to study processes modulated by spatially localized ROS. One ROS of interest is singlet oxygen, O2 (a1 Δg ). We recently developed a singlet oxygen photosensitizing protein, SOPP, in which flavin mononucleotide, FMN, is encased in a re-engineered light-oxygen-voltage protein. One goal was to ascertain how a version of this system, SOPP3, which selectively makes O2 (a1 Δg ), in vitro, behaves in a cell. We now demonstrate that SOPP3 undergoes exacerbated irradiation-mediated bleaching when expressed at either the plasma membrane or mitochondria in stable cell lines. We find that the environment around the SOPP3 system affects the bleaching rate, which argues against one of the key suppositions in support of a protein-encased chromophore.
Collapse
Affiliation(s)
| | | | | | - Michael Etzerodt
- Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Peter R Ogilby
- Department of Chemistry, Aarhus University, Aarhus, Denmark
| |
Collapse
|
11
|
Callaghan S, Vindstad BE, Flanagan KJ, Melø TB, Lindgren M, Grenstad K, Gederaas OA, Senge MO. Structural, Photophysical, and Photobiological Studies on BODIPY‐Anthracene Dyads. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Susan Callaghan
- Medicinal Chemistry Trinity Translational Medicine Institute Trinity Centre for Health Sciences Trinity College Dublin The University of Dublin St. James's Hospital Dublin 8 Ireland
| | - Benedikte E. Vindstad
- Department of Physics Norwegian University of Science and Technology 7491 Trondheim Norway
| | - Keith J. Flanagan
- Medicinal Chemistry Trinity Translational Medicine Institute Trinity Centre for Health Sciences Trinity College Dublin The University of Dublin St. James's Hospital Dublin 8 Ireland
| | - Thor B. Melø
- Department of Physics Norwegian University of Science and Technology 7491 Trondheim Norway
| | - Mikael Lindgren
- Department of Physics Norwegian University of Science and Technology 7491 Trondheim Norway
| | - Kristin Grenstad
- Department of Physics Norwegian University of Science and Technology 7491 Trondheim Norway
| | - Odrun A. Gederaas
- Department of Physics Norwegian University of Science and Technology 7491 Trondheim Norway
| | - Mathias O. Senge
- Medicinal Chemistry Trinity Translational Medicine Institute Trinity Centre for Health Sciences Trinity College Dublin The University of Dublin St. James's Hospital Dublin 8 Ireland
| |
Collapse
|
12
|
Oxygen- and pH-Dependent Photophysics of Fluorinated Fluorescein Derivatives: Non-Symmetrical vs. Symmetrical Fluorination. SENSORS 2020; 20:s20185172. [PMID: 32927830 PMCID: PMC7570907 DOI: 10.3390/s20185172] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 11/23/2022]
Abstract
Fluorescein, and derivatives of fluorescein, are often used as fluorescent probes and sensors. In systems where pH is a variable, protonation/deprotonation of the molecule can influence the pertinent photophysics. Fluorination of the xanthene moiety can alter the molecule’s pKa such as to render a probe whose photophysics remains invariant over a wide pH range. Di-fluorination is often sufficient to accomplish this goal, as has been demonstrated with compounds such as Oregon Green in which the xanthene moiety is symmetrically difluorinated. In this work, we synthesized a non-symmetrical difluorinated analog of Oregon Green which we call Athens Green. We ascertained that the photophysics and photochemistry of Athens Green, including the oxygen-dependent photophysics that results in the sensitized production of singlet oxygen, O2(a1Δg), can differ appreciably from the photophysics of Oregon Green. Our data indicate that Athens Green will be a more benign fluorescent probe in systems that involve the production and removal of O2(a1Δg). These results expand the available options in the toolbox of fluorescein-based fluorophores.
Collapse
|
13
|
Lin L, Lin H, Shen Y, Chen D, Gu Y, Wilson BC, Li B. Singlet Oxygen Luminescence Image in Blood Vessels During Vascular-Targeted Photodynamic Therapy. Photochem Photobiol 2020; 96:646-651. [PMID: 32220067 DOI: 10.1111/php.13264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Accepted: 03/09/2020] [Indexed: 02/02/2023]
Abstract
Singlet oxygen (1 O2 ) is widely regarded as the main cytotoxic substance that induces the biological damage for photodynamic therapy (PDT). In this study, the previously developed near-infrared (NIR) optical imaging system was optimized for fast imaging of 1 O2 luminescence. The optical imaging system enables direct imaging of 1 O2 luminescence in blood vessels within 2 s during vascular-targeted PDT (V-PDT), which makes this system extremely practical for in vivo studies. The dependence of RB concentration on 1 O2 luminescence image was investigated for V-PDT, and the data imply that 1270 nm signal is attributed to 1 O2 luminescence. The imaging system operates with a field of view of 9.60 × 7.68 mm2 and a spatial resolution of 30 μm, which holds the potential to elucidate the correlation between cumulative 1 O2 luminescence and vasoconstriction for V-PDT.
Collapse
Affiliation(s)
- Lisheng Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, China
| | - Huiyun Lin
- Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, China
| | - Yi Shen
- Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, China
| | - Defu Chen
- Department of Laser Medicine, Chinese PLA General Hospital, Beijing, China
| | - Ying Gu
- Department of Laser Medicine, Chinese PLA General Hospital, Beijing, China
| | - Brian C Wilson
- Department of Medical Biophysics, University of Toronto/Ontario Cancer Institute, Toronto, Canada
| | - Buhong Li
- Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, China
| |
Collapse
|
14
|
Lindgren M, Gederaas OA, Siksjø M, Hansen TA, Chen L, Mettra B, Andraud C, Monnereau C. Influence of Polymer Charge on the Localization and Dark- and Photo-Induced Toxicity of a Potential Type I Photosensitizer in Cancer Cell Models. Molecules 2020; 25:molecules25051127. [PMID: 32138280 PMCID: PMC7179247 DOI: 10.3390/molecules25051127] [Citation(s) in RCA: 4] [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: 01/18/2020] [Revised: 02/26/2020] [Accepted: 02/28/2020] [Indexed: 01/02/2023] Open
Abstract
A current trend within photo-dynamic therapy (PDT) is the development of molecular systems targeting hypoxic tumors. Thus, type I PDT sensitizers could here overcome traditional type II molecular systems that rely on the photo-initiated production of toxic singlet oxygen. Here, we investigate the cell localization properties and toxicity of two polymeric anthracene-based fluorescent probes (neutral Ant-PHEA and cationic Ant-PIm). The cell death and DNA damage of Chinese hamster ovary cancer cells (CHO-K1) were characterized as combining PDT, cell survival studies (MTT-assay), and comet assay. Confocal microscopy was utilized on samples incubated together with either DRAQ5, Lyso Tracker Red, or Mito Tracker Deep Red in order to map the localization of the sensitizer into the nucleus and other cell compartments. While Ant-PHEA did not cause significant damage to the cell, Ant-PIm showed increased cell death upon illumination, at the cost of a significant dark toxicity. Both anthracene chromophores localized in cell compartments of the cytosol. Ant-PIm showed a markedly improved selectivity toward lysosomes and mitochondria, two important biological compartments for the cell’s survival. None of the two anthracene chromophores showed singlet oxygen formation upon excitation in solvents such as deuterium oxide or methanol. Conclusively, the significant photo-induced cell death that could be observed with Ant-PIm suggests a possible type I PDT mechanism rather than the usual type II mechanism.
Collapse
Affiliation(s)
- Mikael Lindgren
- Department of Physics, Faculty of Natural Sciences, Norwegian University of Science and Technology, Gløshaugen, NO-7491 Trondheim, Norway; (O.A.G.); (M.S.); (T.A.H.)
- Correspondence: ; Tel.: +47-414-66-510
| | - Odrun A. Gederaas
- Department of Physics, Faculty of Natural Sciences, Norwegian University of Science and Technology, Gløshaugen, NO-7491 Trondheim, Norway; (O.A.G.); (M.S.); (T.A.H.)
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Laboratoriesentret 5, NO-7491 Trondheim, Norway
| | - Monica Siksjø
- Department of Physics, Faculty of Natural Sciences, Norwegian University of Science and Technology, Gløshaugen, NO-7491 Trondheim, Norway; (O.A.G.); (M.S.); (T.A.H.)
| | - Tom A. Hansen
- Department of Physics, Faculty of Natural Sciences, Norwegian University of Science and Technology, Gløshaugen, NO-7491 Trondheim, Norway; (O.A.G.); (M.S.); (T.A.H.)
| | - Lena Chen
- Laboratoire de Chimie, CNRS UMR 5182, ENS de Lyon, Université Lyon 1, F-69342 Lyon, France; (L.C.); (B.M.); (C.A.); (C.M.)
| | - Bastien Mettra
- Laboratoire de Chimie, CNRS UMR 5182, ENS de Lyon, Université Lyon 1, F-69342 Lyon, France; (L.C.); (B.M.); (C.A.); (C.M.)
| | - Chantal Andraud
- Laboratoire de Chimie, CNRS UMR 5182, ENS de Lyon, Université Lyon 1, F-69342 Lyon, France; (L.C.); (B.M.); (C.A.); (C.M.)
| | - Cyrille Monnereau
- Laboratoire de Chimie, CNRS UMR 5182, ENS de Lyon, Université Lyon 1, F-69342 Lyon, France; (L.C.); (B.M.); (C.A.); (C.M.)
| |
Collapse
|
15
|
Scholz M, Gunn JR, Luke GP, Pogue BW. Imaging of singlet oxygen feedback delayed fluorescence and lysosome permeabilization in tumor in vivo during photodynamic therapy with aluminum phthalocyanine. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:1-14. [PMID: 31920049 PMCID: PMC6951482 DOI: 10.1117/1.jbo.25.6.063806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 12/12/2019] [Indexed: 05/20/2023]
Abstract
Significance: Singlet oxygen is a key cytotoxic agent in photodynamic therapy (PDT). As such, its imaging is highly desirable, but existing direct imaging methods are still limited by the exceptionally low yield of the luminescence signal. Singlet oxygen feedback delayed fluorescence (SOFDF) of the photosensitizer is a higher yield alternative for indirect measurement of this signal. <p> Aim: The aim was to explore feasibility of SOFDF imaging in vivo in tumor-bearing mice during PDT and investigate how SOFDF images can be transformed into images of singlet oxygen. In addition, we study whether lysosome permeabilization can be visualized through fluorescence lifetime.</p> <p> Approach: Mice were intravenously injected with 2.5 mg/kg of photosensitizer aluminum(III) phthalocyanine tetrasulfonate (AlPcS4) 20 h prior to experiments, having subcutaneous BxPC3 pancreas tumors. Time-resolved delayed fluorescence and prompt fluorescence (PF) were imaged using an intensified time-gated camera with 10-Hz pulsed laser excitation at 690 nm. </p> <p> Results: Delayed emission from AlPcS4 was detected with lifetimes 7 to 11 μs, which was attributed to SOFDF and shown to be oxygen-dependent. Singlet oxygen images were approximated by the ratio of SOFDF/PF at each pixel. SOFDF images of a good quality could be captured within several seconds with a radiant exposure of ∼20 mJ / cm2. In addition, lifetime images of AlPcS4 PF in ns-time domain enabled us to visualize the event of lysosome permeabilization, as the lifetime increased from ∼4.7 to 5.2 ns. </p> <p> Conclusions: Imaging of SOFDF in vivo in mouse tumor during PDT with AlPcS4 is feasible, and it is a promising method for singlet molecular oxygen monitoring. Moreover, the time-gated approach also enables visualization of the lysosome permeabilization that alters the PF lifetime. </p>
Collapse
Affiliation(s)
- Marek Scholz
- Dartmouth College, Thayer School of Engineering, Center for Imaging Medicine, Hanover, New Hampshire, United States
- Address all correspondence to Marek Scholz, E-mail: ; Brian W. Pogue, E-mail:
| | - Jason R. Gunn
- Dartmouth College, Thayer School of Engineering, Center for Imaging Medicine, Hanover, New Hampshire, United States
| | - Geoffrey P. Luke
- Dartmouth College, Thayer School of Engineering, Center for Imaging Medicine, Hanover, New Hampshire, United States
| | - Brian W. Pogue
- Dartmouth College, Thayer School of Engineering, Center for Imaging Medicine, Hanover, New Hampshire, United States
- Address all correspondence to Marek Scholz, E-mail: ; Brian W. Pogue, E-mail:
| |
Collapse
|
16
|
Bregnhøj M, Prete M, Turkovic V, Petersen AU, Nielsen MB, Madsen M, Ogilby PR. Oxygen-dependent photophysics and photochemistry of prototypical compounds for organic photovoltaics: inhibiting degradation initiated by singlet oxygen at a molecular level. Methods Appl Fluoresc 2019; 8:014001. [DOI: 10.1088/2050-6120/ab4edc] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
17
|
Heterogeneous Oxidation of Phenolic Compounds with Photosensitizing Catalysts Incorporated into Chitosan. Catalysts 2019. [DOI: 10.3390/catal9110891] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The increasing amount of hazardous micropollutants in the aqueous environment has recently become a concern, especially because they are not usually included in environmental monitoring programs. There is also limited knowledge regarding their behavior in the environment and their toxicity. This paper presents results regarding the heterogeneous photosensitized oxidation of 10 phenolic compounds under visible light. All of the selected compounds are classified as pollutants of emerging concern. For the first time, the application of photosensitizing catalysts incorporated into a chitosan carrier was investigated from several points of view, namely, structure characterization, singlet oxygen generation potential, photodegradation ability, biodegradability, and toxicity assessment. It was found that compounds of different origins were degraded with high effectivity. Photoactive chitosan was stable and could be reused for at least 12 cycles without losing its photocatalytic activity. The Hammett constants for all of the degraded compounds were determined. Improved biodegradability after the treatment was achieved for almost all compounds, apart from 4-hydroxybenzoic acid, and only slightly for 2-phenylphenol. The acute toxicity was assessed using bioluminescent Vibrio fischeri bacteria, indicating lower toxicity than the parent compounds.
Collapse
|
18
|
Mu C, Wang J, Barraza KM, Zhang X, Beauchamp JL. Mass Spectrometric Study of Acoustically Levitated Droplets Illuminates Molecular‐Level Mechanism of Photodynamic Therapy for Cancer involving Lipid Oxidation. Angew Chem Int Ed Engl 2019; 58:8082-8086. [DOI: 10.1002/anie.201902815] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Chaonan Mu
- Key Laboratory of Advanced Energy Materials Chemistry, (Ministry of Education) Renewable Energy Conversion and Storage Center (ReCAST) College of Chemistry Nankai University Tianjin 300071 China
| | - Jie Wang
- Key Laboratory of Advanced Energy Materials Chemistry, (Ministry of Education) Renewable Energy Conversion and Storage Center (ReCAST) College of Chemistry Nankai University Tianjin 300071 China
| | - Kevin M. Barraza
- Noyes Laboratory of Chemical Physics and the Beckman Institute California Institute of Technology Pasadena CA 91125 USA
| | - Xinxing Zhang
- Key Laboratory of Advanced Energy Materials Chemistry, (Ministry of Education) Renewable Energy Conversion and Storage Center (ReCAST) College of Chemistry Nankai University Tianjin 300071 China
| | - J. L. Beauchamp
- Noyes Laboratory of Chemical Physics and the Beckman Institute California Institute of Technology Pasadena CA 91125 USA
| |
Collapse
|
19
|
Mu C, Wang J, Barraza KM, Zhang X, Beauchamp JL. Mass Spectrometric Study of Acoustically Levitated Droplets Illuminates Molecular‐Level Mechanism of Photodynamic Therapy for Cancer involving Lipid Oxidation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902815] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Chaonan Mu
- Key Laboratory of Advanced Energy Materials Chemistry, (Ministry of Education) Renewable Energy Conversion and Storage Center (ReCAST) College of Chemistry Nankai University Tianjin 300071 China
| | - Jie Wang
- Key Laboratory of Advanced Energy Materials Chemistry, (Ministry of Education) Renewable Energy Conversion and Storage Center (ReCAST) College of Chemistry Nankai University Tianjin 300071 China
| | - Kevin M. Barraza
- Noyes Laboratory of Chemical Physics and the Beckman Institute California Institute of Technology Pasadena CA 91125 USA
| | - Xinxing Zhang
- Key Laboratory of Advanced Energy Materials Chemistry, (Ministry of Education) Renewable Energy Conversion and Storage Center (ReCAST) College of Chemistry Nankai University Tianjin 300071 China
| | - J. L. Beauchamp
- Noyes Laboratory of Chemical Physics and the Beckman Institute California Institute of Technology Pasadena CA 91125 USA
| |
Collapse
|
20
|
Arja K, Elgland M, Appelqvist H, Konradsson P, Lindgren M, Nilsson KPR. Synthesis and Characterization of Novel Fluoro-glycosylated Porphyrins that can be Utilized as Theranostic Agents. ChemistryOpen 2018; 7:495-503. [PMID: 30003003 PMCID: PMC6031858 DOI: 10.1002/open.201800020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Indexed: 12/21/2022] Open
Abstract
Small molecules with modalities for a variety of imaging techniques as well as therapeutic activity are essential, as such molecules render opportunities to simultaneously conduct diagnosis and targeted therapy, so called theranostics. In this regard, glycoporphyrins have proven useful as theranostic agents towards cancer, as well as noncancerous conditions. Herein, the synthesis and characterization of heterobifunctional glycoconjugated porphyrins with two different sugar moieties, a common monosaccharide at three sites, and a 2-fluoro-2-deoxy glucose (FDG) moiety at the fourth site are presented. The fluoro-glycoconjugated porphyrins exhibit properties for multimodal imaging and photodynamic therapy, as well as specificity towards cancer cells. We foresee that our findings might aid in the chemical design of heterobifunctional glycoconjugated porphyrins that could be utilized as theranostic agents.
Collapse
Affiliation(s)
- Katriann Arja
- Division of ChemistryDepartment of Physics, Chemistry and BiologyLinköping University581 83LinköpingSweden
| | - Mathias Elgland
- Division of ChemistryDepartment of Physics, Chemistry and BiologyLinköping University581 83LinköpingSweden
| | - Hanna Appelqvist
- Division of ChemistryDepartment of Physics, Chemistry and BiologyLinköping University581 83LinköpingSweden
| | - Peter Konradsson
- Division of ChemistryDepartment of Physics, Chemistry and BiologyLinköping University581 83LinköpingSweden
| | - Mikael Lindgren
- Department of PhysicsNorwegian University of Science and Technology, NTNU7491TrondheimNorway
| | - K. Peter R. Nilsson
- Division of ChemistryDepartment of Physics, Chemistry and BiologyLinköping University581 83LinköpingSweden
| |
Collapse
|
21
|
Fu Y, Li X, Ren Z, Mao C, Han G. Multifunctional Electrospun Nanofibers for Enhancing Localized Cancer Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801183. [PMID: 29952070 PMCID: PMC6342678 DOI: 10.1002/smll.201801183] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/26/2018] [Indexed: 05/16/2023]
Abstract
Localized cancer treatment is one of the most effective strategies in clinical destruction of solid tumors at early stages as it can minimize the side effects of cancer therapeutics. Electrospun nanofibers have been demonstrated as a promising implantable platform in localized cancer treatment, enabling the on-site delivery of therapeutic components and minimizing side effects to normal tissues. This Review discusses the recent cutting-edge research with regard to electrospun nanofibers used for various therapeutic approaches, including gene therapy, chemotherapy, photodynamic therapy, thermal therapy, and combination therapy, in enhancing localized cancer treatment. Furthermore, it extensively analyzes the current challenges and potential breakthroughs in utilizing this novel platform for clinical transition in localized cancer treatment.
Collapse
Affiliation(s)
- Yike Fu
- State Key Laboratory of Silicon Materials, School of Materials
Science and Engineering, Zhejiang University, Hangzhou, 310027, P.R.
China
| | - Xiang Li
- State Key Laboratory of Silicon Materials, School of Materials
Science and Engineering, Zhejiang University, Hangzhou, 310027, P.R. China.,
| | - Zhaohui Ren
- State Key Laboratory of Silicon Materials, School of Materials
Science and Engineering, Zhejiang University, Hangzhou, 310027, P.R. China.,
| | - Chuanbin Mao
- Department of Chemistry & Biochemistry, Stephenson Life
Sciences Research Center, University of Oklahoma, 101 Stephenson Parkway,
Norman, Oklahoma, 73019-5300, USA.,
| | - Gaorong Han
- State Key Laboratory of Silicon Materials, School of Materials
Science and Engineering, Zhejiang University, Hangzhou, 310027, P.R.
China
| |
Collapse
|
22
|
Scholz M, Dědic R, Hála J. Microscopic time-resolved imaging of singlet oxygen by delayed fluorescence in living cells. Photochem Photobiol Sci 2018; 16:1643-1653. [PMID: 28936518 DOI: 10.1039/c7pp00132k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Singlet oxygen is a highly reactive species which is involved in a number of processes, including photodynamic therapy of cancer. Its very weak near-infrared emission makes imaging of singlet oxygen in biological systems a long-term challenge. We address this challenge by introducing Singlet Oxygen Feedback Delayed Fluorescence (SOFDF) as a novel modality for semi-direct microscopic time-resolved wide-field imaging of singlet oxygen in biological systems. SOFDF has been investigated in individual fibroblast cells incubated with a well-known photosensitizer aluminium phthalocyanine tetrasulfonate. The SOFDF emission from the cells is several orders of magnitude stronger and much more readily detectable than the very weak near-infrared phosphorescence of singlet oxygen. Moreover, the analysis of SOFDF kinetics enables us to estimate the lifetimes of the involved excited states. Real-time SOFDF images with micrometer spatial resolution and submicrosecond temporal-resolution have been recorded. Interestingly, a steep decrease in the SOFDF intensity after the photodynamically induced release of a photosensitizer from lysosomes has been demonstrated. This effect could be potentially employed as a valuable diagnostic tool for monitoring and dosimetry in photodynamic therapy.
Collapse
Affiliation(s)
- Marek Scholz
- Charles University, Faculty of Mathematics and Physics, Department of Chemical Physics and Optics, Ke Karlovu 3, 121 16, Prague, The Czech Republic.
| | | | | |
Collapse
|
23
|
Zhai Y, Busscher HJ, Liu Y, Zhang Z, van Kooten TG, Su L, Zhang Y, Liu J, Liu J, An Y, Shi L. Photoswitchable Micelles for the Control of Singlet-Oxygen Generation in Photodynamic Therapies. Biomacromolecules 2018; 19:2023-2033. [DOI: 10.1021/acs.biomac.8b00085] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan Zhai
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Henk J. Busscher
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Yong Liu
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Zhenkun Zhang
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Theo G. van Kooten
- University of Groningen and University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Linzhu Su
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yumin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, 300192, People’s Republic of China
| | - Jinjian Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, 300192, People’s Republic of China
| | - Jianfeng Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Science and Peking Union Medical College, Tianjin, 300192, People’s Republic of China
| | - Yingli An
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Linqi Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| |
Collapse
|
24
|
Zhu YX, Jia HR, Chen Z, Wu FG. Photosensitizer (PS)/polyhedral oligomeric silsesquioxane (POSS)-crosslinked nanohybrids for enhanced imaging-guided photodynamic cancer therapy. NANOSCALE 2017; 9:12874-12884. [PMID: 28686273 DOI: 10.1039/c7nr02279d] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Photodynamic therapy (PDT) has drawn extensive attention as a promising cancer treatment modality. However, most PDT nanoagents suffer from insufficient drug loading capacity, a severe self-quenching effect, premature release of drugs and/or potential toxicity. Herein, we rationally designed an inorganic-organic nanohybrid with high drug loading capacity and superior chemical stability for enhanced PDT. Polyhedral oligomeric silsesquioxane (POSS), an amine-containing cage-shaped building block, was crosslinked with chlorin e6 (Ce6), a carboxyl-containing photosensitizer, via the amine-carboxyl reaction. Polyethylene glycol (PEG) polymers were further modified on the surface of the nanoparticle to improve the aqueous dispersibility and prolong the circulation time of the final nanoconstruct (POSS-Ce6-PEG). The as-prepared POSS-Ce6-PEG has a considerably high loading rate of Ce6 (19.8 wt%) with desirable fluorescence emission and singlet oxygen generation. Besides, in vitro experiments revealed that the nanoagent exhibited enhanced cellular uptake and a preferred intracellular accumulation within mitochondria and the endoplasmic reticulum, resulting in high anticancer efficiency under light irradiation. Furthermore, in vivo imaging-guided PDT was also successfully achieved, showing the effective tumor targeting and ablation ability of POSS-Ce6-PEG. More importantly, the nanoagent possesses negligible dark cytotoxicity and systemic side effects. Therefore, POSS-Ce6-PEG as an eligible PDT theranostic agent holds great potential in clinical applications.
Collapse
Affiliation(s)
- Ya-Xuan Zhu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P. R. China.
| | | | | | | |
Collapse
|
25
|
Marioni J, Bresolí-Obach R, Agut M, Comini LR, Cabrera JL, Paraje MG, Nonell S, Núñez Montoya SC. On the mechanism of Candida tropicalis biofilm reduction by the combined action of naturally-occurring anthraquinones and blue light. PLoS One 2017; 12:e0181517. [PMID: 28723923 PMCID: PMC5517063 DOI: 10.1371/journal.pone.0181517] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 07/03/2017] [Indexed: 01/05/2023] Open
Abstract
The photoprocesses involved in the photo-induced Candida tropicalis biofilm reduction by two natural anthraquinones (AQs), rubiadin (1) and rubiadin-1-methyl ether (2), were examined. Production of singlet oxygen (1O2) and of superoxide radical anion (O2•−) was studied. Although it was not possible to detect the triplet state absorption of any AQs in biofilms, observation of 1O2 phosphorescence incubated with deuterated Phosphate Buffer Solution, indicated that this species is actually formed in biofilms. 2 was accumulated in the biofilm to a greater extent than 1 and produced measurable amounts of O2•− after 3h incubation in biofilms. The effect of reactive oxygen species scavengers on the photo-induced biofilm reduction showed that Tiron (a specific O2•− scavenger) is most effective than sodium azide (a specific 1O2 quencher). This suggests that O2•− formed by electron transfer quenching of the AQs excited states, is the main photosensitizing mechanism involved in the photo-induced antibiofilm activity, whereas 1O2 participation seems of lesser importance.
Collapse
Affiliation(s)
- Juliana Marioni
- IMBIV, CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional Córdoba, Córdoba, Argentina
| | | | - Montserrat Agut
- Institut Químic de Sarrià, Universitat Ramon Llull, Barcelona, Spain
| | - Laura R. Comini
- IMBIV, CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional Córdoba, Córdoba, Argentina
| | - José L. Cabrera
- IMBIV, CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional Córdoba, Córdoba, Argentina
| | - María G. Paraje
- IMBIV, CONICET and Cátedra de Microbiología, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Santi Nonell
- Institut Químic de Sarrià, Universitat Ramon Llull, Barcelona, Spain
- * E-mail: (SN); (SCNM)
| | - Susana C. Núñez Montoya
- IMBIV, CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional Córdoba, Córdoba, Argentina
- * E-mail: (SN); (SCNM)
| |
Collapse
|
26
|
Bansode AS, More SE, Siddiqui EA, Satpute S, Ahmad A, Bhoraskar SV, Mathe VL. Effective degradation of organic water pollutants by atmospheric non-thermal plasma torch and analysis of degradation process. CHEMOSPHERE 2017; 167:396-405. [PMID: 27744197 DOI: 10.1016/j.chemosphere.2016.09.089] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 09/07/2016] [Accepted: 09/21/2016] [Indexed: 06/06/2023]
Abstract
The paper reports the use of atmospheric non-thermal plasma torch as a catalyst for degradation of various organic pollutants dissolved in water. A flow of He mixed with air was used to produce the dielectric barrier discharge (DBD), at the tip of the torch, using pulsed electric excitation at 12 kV. The torch, operated at a power of 750 mW/mm2, was seen to completely degrade the aqueous solutions of the pollutants namely methylene blue (MB), methyl orange (MO) and rhodamine-B (RB), at around 10-4 M concentrations, the concentration of polluants is one order higher than of routinely used heterogeneous photocatalytic reactions, within 10 min of irradiation time at room temperature. UV Visible spectra of the organic dye molecules, monitored after different intervals of plasma-irradiation, ranging between 1 and 10 min, have been used as tools to quantify their sequential degradation. Further, instead of using He, only air was used to form plasma plume and used for degradation of organic dye which follow similar trend as that of He plasma. Further, Liquid Chromatography Mass Spectroscopy (LCMS) technique has been used to understand degradation pathway of methylene blue (MB) as a representative case. Total organic carbon (TOC) measurements indicates significant decrease in its content as a function of duration of plasma exposure onto methylene blue as a representative case. Toxicity studies were carried out onto Gram negative Escherichia coli. This indicated that methylene blue, without plasma treatment, shows growth inhibition, whereas with plasma treatment no inhibition was observed.
Collapse
Affiliation(s)
- Avinash S Bansode
- Department of Physics, Savitribai Phule Pune University, Pune, 411007, Maharastra, India
| | - Supriya E More
- Department of Physics, Savitribai Phule Pune University, Pune, 411007, Maharastra, India
| | | | - Shruti Satpute
- Biochemical Sciences Division, CSIR-NCL, Pune, 411008, Maharastra, India
| | - Absar Ahmad
- Biochemical Sciences Division, CSIR-NCL, Pune, 411008, Maharastra, India
| | - Sudha V Bhoraskar
- Department of Physics, Savitribai Phule Pune University, Pune, 411007, Maharastra, India
| | - Vikas L Mathe
- Department of Physics, Savitribai Phule Pune University, Pune, 411007, Maharastra, India.
| |
Collapse
|
27
|
Banerjee SM, MacRobert AJ, Mosse CA, Periera B, Bown SG, Keshtgar MRS. Photodynamic therapy: Inception to application in breast cancer. Breast 2016; 31:105-113. [PMID: 27833041 DOI: 10.1016/j.breast.2016.09.016] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 09/12/2016] [Accepted: 09/26/2016] [Indexed: 01/04/2023] Open
Abstract
Photodynamic therapy (PDT) is already being used in the treatment of many cancers. This review examines its components and the new developments in our understanding of its immunological effects as well as pre-clinical and clinical studies, which have investigated its potential use in the treatment of breast cancer.
Collapse
Affiliation(s)
- S M Banerjee
- Royal Free London NHS Foundation Trust, UK; Division of Surgery and Interventional Science, University College London, UK
| | - A J MacRobert
- Division of Surgery and Interventional Science, University College London, UK
| | - C A Mosse
- Division of Surgery and Interventional Science, University College London, UK
| | - B Periera
- Royal Free London NHS Foundation Trust, UK
| | - S G Bown
- Division of Surgery and Interventional Science, University College London, UK
| | - M R S Keshtgar
- Royal Free London NHS Foundation Trust, UK; Division of Surgery and Interventional Science, University College London, UK.
| |
Collapse
|
28
|
Westberg M, Bregnhøj M, Banerjee C, Blázquez-Castro A, Breitenbach T, Ogilby PR. Exerting better control and specificity with singlet oxygen experiments in live mammalian cells. Methods 2016; 109:81-91. [DOI: 10.1016/j.ymeth.2016.07.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/01/2016] [Accepted: 07/03/2016] [Indexed: 12/25/2022] Open
|
29
|
Klaper M, Fudickar W, Linker T. Role of Distance in Singlet Oxygen Applications: A Model System. J Am Chem Soc 2016; 138:7024-9. [DOI: 10.1021/jacs.6b01555] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Matthias Klaper
- Department
of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Golm, Germany
| | - Werner Fudickar
- Department
of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Golm, Germany
| | - Torsten Linker
- Department
of Chemistry, University of Potsdam, Karl-Liebknecht-Strasse 24-25, 14476 Golm, Germany
| |
Collapse
|
30
|
Altinok E, Frausto F, Thomas SW. Water‐soluble fluorescent polymers that respond to singlet oxygen. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28130] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Esra Altinok
- Department of ChemistryTufts University62 Talbot AvenueMedford Massachusetts02155
| | - Fanny Frausto
- Department of ChemistryTufts University62 Talbot AvenueMedford Massachusetts02155
| | - Samuel W. Thomas
- Department of ChemistryTufts University62 Talbot AvenueMedford Massachusetts02155
| |
Collapse
|
31
|
Westberg M, Bregnhøj M, Blázquez-Castro A, Breitenbach T, Etzerodt M, Ogilby PR. Control of singlet oxygen production in experiments performed on single mammalian cells. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.01.028] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
32
|
da Silva EFF, Pimenta FM, Pedersen BW, Blaikie FH, Bosio GN, Breitenbach T, Westberg M, Bregnhøj M, Etzerodt M, Arnaut LG, Ogilby PR. Intracellular singlet oxygen photosensitizers: on the road to solving the problems of sensitizer degradation, bleaching and relocalization. Integr Biol (Camb) 2016; 8:177-93. [DOI: 10.1039/c5ib00295h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Elsa F. F. da Silva
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Frederico M. Pimenta
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
| | - Brian W. Pedersen
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
| | - Frances H. Blaikie
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
| | - Gabriela N. Bosio
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CCT-La Plata-CONICET, Universidad Nacional de La Plata, Casilla de Correo 16, sucursal 4 (1900), La Plata, Argentina
| | - Thomas Breitenbach
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
| | - Michael Westberg
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
| | - Mikkel Bregnhøj
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
| | - Michael Etzerodt
- Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus, Denmark
| | - Luis G. Arnaut
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Peter R. Ogilby
- Center for Oxygen Microscopy and Imaging, Department of Chemistry, Aarhus University, DK-8000, Århus, Denmark
| |
Collapse
|
33
|
Bregnhøj M, Westberg M, Jensen F, Ogilby PR. Solvent-dependent singlet oxygen lifetimes: temperature effects implicate tunneling and charge-transfer interactions. Phys Chem Chem Phys 2016; 18:22946-61. [DOI: 10.1039/c6cp01635a] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new model for an old problem: a barrier to account for temperature effects on singlet oxygen lifetimes.
Collapse
Affiliation(s)
| | | | - Frank Jensen
- Chemistry Department
- Aarhus University
- Aarhus
- Denmark
| | | |
Collapse
|
34
|
Mattila H, Khorobrykh S, Havurinne V, Tyystjärvi E. Reactive oxygen species: Reactions and detection from photosynthetic tissues. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 152:176-214. [PMID: 26498710 DOI: 10.1016/j.jphotobiol.2015.10.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/30/2015] [Accepted: 10/01/2015] [Indexed: 12/22/2022]
Abstract
Reactive oxygen species (ROS) have long been recognized as compounds with dual roles. They cause cellular damage by reacting with biomolecules but they also function as agents of cellular signaling. Several different oxygen-containing compounds are classified as ROS because they react, at least with certain partners, more rapidly than ground-state molecular oxygen or because they are known to have biological effects. The present review describes the typical reactions of the most important ROS. The reactions are the basis for both the detection methods and for prediction of reactions between ROS and biomolecules. Chemical and physical methods used for detection, visualization and quantification of ROS from plants, algae and cyanobacteria will be reviewed. The main focus will be on photosynthetic tissues, and limitations of the methods will be discussed.
Collapse
Affiliation(s)
- Heta Mattila
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland
| | - Sergey Khorobrykh
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland
| | - Vesa Havurinne
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland
| | - Esa Tyystjärvi
- Department of Biochemistry/Molecular Plant Biology, University of Turku, 20014 Turku, Finland.
| |
Collapse
|
35
|
Boix-Garriga E, Acedo P, Casadó A, Villanueva A, Stockert JC, Cañete M, Mora M, Sagristá ML, Nonell S. Poly(D, L-lactide-co-glycolide) nanoparticles as delivery agents for photodynamic therapy: enhancing singlet oxygen release and photototoxicity by surface PEG coating. NANOTECHNOLOGY 2015; 26:365104. [PMID: 26293792 DOI: 10.1088/0957-4484/26/36/365104] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Poly(D, L-lactide-co-glycolide) (PLGA) nanoparticles (NPs) are being considered as nanodelivery systems for photodynamic therapy. The physico-chemical and biological aspects of their use remain largely unknown. Herein we report the results of a study of PLGA NPs for the delivery of the model hydrophobic photosensitizer ZnTPP to HeLa cells. ZnTPP was encapsulated in PLGA with high efficiency and the NPs showed negative zeta potentials and diameters close to 110 nm. Poly(ethylene glycol) (PEG) coating, introduced to prevent opsonization and clearance by macrophages, decreased the size and zeta potential of the NPs by roughly a factor of two and improved their stability in the presence of serum proteins. Photophysical studies revealed two and three populations of ZnTPP and singlet oxygen in uncoated and PEGylated NPs, respectively. Singlet oxygen is confined within the NPs in bare PLGA while it is more easily released into the external medium after PEG coating, which contributes to a higher photocytotoxicity towards HeLa cells in vitro. PLGA NPs are internalized by endocytosis, deliver their cargo to lysosomes and induce cell death by apoptosis upon exposure to light. In conclusion, PLGA NPs coated with PEG show high potential as delivery systems for photodynamic applications.
Collapse
Affiliation(s)
- Ester Boix-Garriga
- Grup d'Enginyeria Molecular, Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Scholz M, Dědic R, Valenta J, Breitenbach T, Hála J. Real-time luminescence microspectroscopy monitoring of singlet oxygen in individual cells. Photochem Photobiol Sci 2015; 13:1203-12. [PMID: 24954013 DOI: 10.1039/c4pp00121d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new setup for direct microspectroscopic monitoring of singlet oxygen ((1)O2) has been developed in our laboratory using a novel near-infrared sensitive InGaAs 2D-array detector. An imaging spectrograph has been inserted in front of the 2D-array detector, which allows us to acquire spectral images where one dimension is spatial and the other is spectral. The work presents a detailed examination of sensitivity and noise characteristics of the setup and its ability to detect (1)O2. The (1)O2 phosphorescence-based images and near-infrared luminescence spectral images recorded from single TMPyP-containing fibroblast cells reflecting spectral changes during irradiation are demonstrated. The introduction of spectral images addresses the issue of a potential spectral overlap of (1)O2 phosphorescence with near-infrared-extended luminescence of the photosensitizer and provides a powerful tool for distinguishing and separating them, which can be applied to any photosensitizer manifesting near-infrared luminescence.
Collapse
Affiliation(s)
- Marek Scholz
- Charles University in Prague, Faculty of Mathematics and Physics, Department of Chemical Physics and Optics, Ke Karlovu 3, 121 16 Praha 2, The Czech Republic.
| | | | | | | | | |
Collapse
|
37
|
Tian W, Deng L, Jin S, Yang H, Cui R, Zhang Q, Shi W, Zhang C, Yuan X, Sha G. Singlet Oxygen Phosphorescence Lifetime Imaging Based on a Fluorescence Lifetime Imaging Microscope. J Phys Chem A 2015; 119:3393-9. [DOI: 10.1021/acs.jpca.5b01504] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wenming Tian
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Liezheng Deng
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Shengye Jin
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Heping Yang
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Rongrong Cui
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Qing Zhang
- Research
Center, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Wenbo Shi
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| | - Chunlei Zhang
- Research
Center, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Xiaolin Yuan
- Research
Center, Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning 116001, China
| | - Guohe Sha
- State
Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
| |
Collapse
|
38
|
Scholz M, Biehl AL, Dědic R, Hála J. The singlet-oxygen-sensitized delayed fluorescence in mammalian cells: a time-resolved microscopy approach. Photochem Photobiol Sci 2015; 14:700-13. [DOI: 10.1039/c4pp00339j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Microsecond kinetics of singlet-oxygen-sensitized delayed fluorescence (SOSDF) have been detected from individual living fibroblast cells as a proof-of-concept. These provide valuable information about excited state lifetimes and their changes during PDT-like treatment.
Collapse
Affiliation(s)
- Marek Scholz
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
| | - Anna-Louisa Biehl
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
- On leave from Ernst-Abbe-Fachhochschule Jena
| | - Roman Dědic
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
| | - Jan Hála
- Charles University in Prague
- Faculty of Mathematics and Physics
- Department of Chemical Physics and Optics
- The Czech Republic
| |
Collapse
|
39
|
Pimenta FM, Jensen JK, Etzerodt M, Ogilby PR. Protein-encapsulated bilirubin: paving the way to a useful probe for singlet oxygen. Photochem Photobiol Sci 2015; 14:665-77. [DOI: 10.1039/c4pp00408f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Oxygen- and singlet-oxygen-dependent parameters that characterize the behavior of bilirubin encapsulated in a protein have been quantified.
Collapse
Affiliation(s)
- Frederico M. Pimenta
- Center for Oxygen Microscopy and Imaging
- Chemistry Department
- Aarhus University
- Aarhus
- Denmark
| | - Jan K. Jensen
- Department of Molecular Biology and Genetics
- Aarhus University
- Aarhus
- Denmark
| | - Michael Etzerodt
- Department of Molecular Biology and Genetics
- Aarhus University
- Aarhus
- Denmark
| | - Peter R. Ogilby
- Center for Oxygen Microscopy and Imaging
- Chemistry Department
- Aarhus University
- Aarhus
- Denmark
| |
Collapse
|
40
|
Kim S, Tachikawa T, Fujitsuka M, Majima T. Far-red fluorescence probe for monitoring singlet oxygen during photodynamic therapy. J Am Chem Soc 2014; 136:11707-15. [PMID: 25075870 DOI: 10.1021/ja504279r] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Singlet oxygen ((1)O2), molecular oxygen in the lowest excited state, has a critical role in the cell-killing mechanism of photodynamic therapy (PDT). Although (1)O2 phosphorescence measurement has been mainly used to monitor (1)O2 formation during PDT, its intensity is far insufficient to obtain two-dimensional images of intracellular (1)O2 with the subcellular spatial resolution using the currently available near-IR detector. Here, we propose a new far-red fluorescence probe of (1)O2, namely, Si-DMA, composed of silicon-containing rhodamine and anthracene moieties as a chromophore and a (1)O2 reactive site, respectively. In the presence of (1)O2, fluorescence of Si-DMA increases 17 times due to endoperoxide formation at the anthracene moiety. With the advantage of negligible self-oxidation by photoirradiation (ΦΔ < 0.02) and selective mitochondrial localization, Si-DMA is particularly suitable for imaging (1)O2 during PDT. Among three different intracellular photosensitizers (Sens), Si-DMA could selectively detect the (1)O2 that is generated by 5-aminolevulinic acid-derived protoporphyrin IX, colocalized with Si-DMA in mitochondria. On the other hand, mitochondria-targeted KillerRed and lysosomal porphyrins could not induce fluorescence change of Si-DMA. This surprising selectivity of Si-DMA response depending on the Sens localization and photosensitization mechanism is caused by a limited intracellular (1)O2 diffusion distance (∼300 nm) and negligible generation of (1)O2 by type-I Sens, respectively. For the first time, we successfully visualized (1)O2 generated during PDT with a spatial resolution of a single mitochondrial tubule.
Collapse
Affiliation(s)
- Sooyeon Kim
- The Institute of Scientific and Industrial Research (SANKEN), Osaka University , Mihogaoka 8-1, Osaka, Ibaraki 567-0047, Japan
| | | | | | | |
Collapse
|
41
|
Mor A, Koh E, Weiner L, Rosenwasser S, Sibony-Benyamini H, Fluhr R. Singlet oxygen signatures are detected independent of light or chloroplasts in response to multiple stresses. PLANT PHYSIOLOGY 2014; 165:249-61. [PMID: 24599491 PMCID: PMC4012584 DOI: 10.1104/pp.114.236380] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 03/03/2014] [Indexed: 05/18/2023]
Abstract
The production of singlet oxygen is typically associated with inefficient dissipation of photosynthetic energy or can arise from light reactions as a result of accumulation of chlorophyll precursors as observed in fluorescent (flu)-like mutants. Such photodynamic production of singlet oxygen is thought to be involved in stress signaling and programmed cell death. Here we show that transcriptomes of multiple stresses, whether from light or dark treatments, were correlated with the transcriptome of the flu mutant. A core gene set of 118 genes, common to singlet oxygen, biotic and abiotic stresses was defined and confirmed to be activated photodynamically by the photosensitizer Rose Bengal. In addition, induction of the core gene set by abiotic and biotic selected stresses was shown to occur in the dark and in nonphotosynthetic tissue. Furthermore, when subjected to various biotic and abiotic stresses in the dark, the singlet oxygen-specific probe Singlet Oxygen Sensor Green detected rapid production of singlet oxygen in the Arabidopsis (Arabidopsis thaliana) root. Subcellular localization of Singlet Oxygen Sensor Green fluorescence showed its accumulation in mitochondria, peroxisomes, and the nucleus, suggesting several compartments as the possible origins or targets for singlet oxygen. Collectively, the results show that singlet oxygen can be produced by multiple stress pathways and can emanate from compartments other than the chloroplast in a light-independent manner. The results imply that the role of singlet oxygen in plant stress regulation and response is more ubiquitous than previously thought.
Collapse
|
42
|
Blázquez-Castro A, Breitenbach T, Ogilby PR. Singlet oxygen and ROS in a new light: low-dose subcellular photodynamic treatment enhances proliferation at the single cell level. Photochem Photobiol Sci 2014; 13:1235-40. [DOI: 10.1039/c4pp00113c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Two-photon excitation of a sensitizer with a focused laser beam was used to create a spatially-localized subcellular population of reactive oxygen species, ROS, stimulating proliferation in single HeLa cells.
Collapse
Affiliation(s)
- Alfonso Blázquez-Castro
- Center for Oxygen Microscopy and Imaging
- Department of Chemistry
- Aarhus University
- DK-8000 Aarhus, Denmark
| | - Thomas Breitenbach
- Center for Oxygen Microscopy and Imaging
- Department of Chemistry
- Aarhus University
- DK-8000 Aarhus, Denmark
| | - Peter R. Ogilby
- Center for Oxygen Microscopy and Imaging
- Department of Chemistry
- Aarhus University
- DK-8000 Aarhus, Denmark
| |
Collapse
|
43
|
Knak A, Regensburger J, Maisch T, Bäumler W. Exposure of vitamins to UVB and UVA radiation generates singlet oxygen. Photochem Photobiol Sci 2014; 13:820-9. [DOI: 10.1039/c3pp50413a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
44
|
Pimenta FM, Jensen RL, Breitenbach T, Etzerodt M, Ogilby PR. Oxygen-dependent photochemistry and photophysics of "miniSOG," a protein-encased flavin. Photochem Photobiol 2013; 89:1116-26. [PMID: 23869989 DOI: 10.1111/php.12111] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 06/09/2013] [Indexed: 01/03/2023]
Abstract
Selected photochemical and photophysical parameters of flavin mononucleotide (FMN) have been examined under conditions in which FMN is (1) solvated in a buffered aqueous solution, and (2) encased in a protein likewise solvated in a buffered aqueous solution. The latter was achieved using the so-called "mini Singlet Oxygen Generator" (miniSOG), an FMN-containing flavoprotein engineered from Arabidopsis thaliana phototropin 2. Although FMN is a reasonably good singlet oxygen photosensitizer in bulk water (ϕΔ = 0.65 ± 0.04), enclosing FMN in this protein facilitates photoinitiated electron-transfer reactions (Type-I chemistry) at the expense of photosensitized singlet oxygen production (Type-II chemistry) and results in a comparatively poor yield of singlet oxygen (ϕΔ = 0.030 ± 0.002). This observation on the effect of the local environment surrounding FMN is supported by a host of spectroscopic and chemical trapping experiments. The results of this study not only elucidate the behavior of miniSOG but also provide useful information for the further development of well-characterized chromophores suitable for use as intracellular sensitizers in mechanistic studies of reactive oxygen species.
Collapse
Affiliation(s)
- Frederico M Pimenta
- Department of Chemistry, Center for Oxygen Microscopy and Imaging, Aarhus University, Aarhus, Denmark
| | | | | | | | | |
Collapse
|
45
|
Gollmer A, Besostri F, Breitenbach T, Ogilby PR. Spatially resolved two-photon irradiation of an intracellular singlet oxygen photosensitizer: Correlating cell response to the site of localized irradiation. Free Radic Res 2013; 47:718-30. [DOI: 10.3109/10715762.2013.817670] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
46
|
A comprehensive tutorial on in vitro characterization of new photosensitizers for photodynamic antitumor therapy and photodynamic inactivation of microorganisms. BIOMED RESEARCH INTERNATIONAL 2013; 2013:840417. [PMID: 23762860 PMCID: PMC3671303 DOI: 10.1155/2013/840417] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 04/19/2013] [Indexed: 11/30/2022]
Abstract
In vitro research performed on eukaryotic or prokaryotic cell cultures usually represents the initial step for characterization of a novel photosensitizer (PS) intended for application in photodynamic therapy (PDT) of cancer or photodynamic inactivation (PDI) of microorganisms. Although many experimental steps of PS testing make use of the wide spectrum of methods readily employed in cell biology, special aspects of working with photoactive substances, such as the autofluorescence of the PS molecule or the requirement of light protection, need to be considered when performing in vitro experiments in PDT/PDI. This tutorial represents a comprehensive collection of operative instructions, by which, based on photochemical and photophysical properties of a PS, its uptake into cells, the intracellular localization and photodynamic action in both tumor cells and microorganisms novel photoactive molecules may be characterized for their suitability for PDT/PDI. Furthermore, it shall stimulate the efforts to expand the convincing benefits of photodynamic therapy and photodynamic inactivation within both established and new fields of applications and motivate scientists of all disciplines to get involved in photodynamic research.
Collapse
|
47
|
Alemany-Ribes M, García-Díaz M, Busom M, Nonell S, Semino CE. Toward a 3D cellular model for studying in vitro the outcome of photodynamic treatments: accounting for the effects of tissue complexity. Tissue Eng Part A 2013; 19:1665-74. [PMID: 23442191 DOI: 10.1089/ten.tea.2012.0661] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Clinical therapies have traditionally been developed using two-dimensional (2D) cell culture systems, which fail to accurately capture tissue complexity. Therefore, three-dimensional (3D) cell cultures are more attractive platforms to integrate multiple cues that arise from the extracellular matrix and cells, closer to an in vivo scenario. Here we report the development of a 3D cellular model for the in vitro assessment of the outcome of oxygen- and drug-dependent therapies, exemplified by photodynamic therapy (PDT). Using a synthetic self-assembling peptide as a cellular scaffold (RAD16-I), we were able to recreate the in vivo limitation of oxygen and drug diffusion and its biological effect, which is the development of cellular resistance to therapy. For the first time, the production and decay of the cytotoxic species singlet oxygen could be observed in a 3D cell culture. Results revealed that the intrinsic mechanism of action is maintained in both systems and, hence, the dynamic mass transfer effects accounted for the major differences in efficacy between the 2D and 3D models. We propose that this methodological approach will help to improve the efficacy of future oxygen- and drug-dependent therapies such as PDT.
Collapse
|
48
|
Bosio GN, Breitenbach T, Parisi J, Reigosa M, Blaikie FH, Pedersen BW, Silva EFF, Mártire DO, Ogilby PR. Antioxidant β-Carotene Does Not Quench Singlet Oxygen in Mammalian Cells. J Am Chem Soc 2012; 135:272-9. [DOI: 10.1021/ja308930a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Gabriela N. Bosio
- Instituto de Investigaciones
Fisicoquímicas Teóricas y Aplicadas (INIFTA), CCT-La
Plata-CONICET, Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4 (1900), La Plata, Argentina
- Center for Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Langelandsgade 140, Århus 8000, Denmark
| | - Thomas Breitenbach
- Center for Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Langelandsgade 140, Århus 8000, Denmark
| | - Julieta Parisi
- Instituto Multidisciplinario de
Biologia Celular (IMBICE), CCT-La Plata-CONICET, Camino General Belgrano
y 526, B1906APO, La Plata, Argentina
| | - Miguel Reigosa
- Instituto Multidisciplinario de
Biologia Celular (IMBICE), CCT-La Plata-CONICET, Camino General Belgrano
y 526, B1906APO, La Plata, Argentina
| | - Frances H. Blaikie
- Center for Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Langelandsgade 140, Århus 8000, Denmark
| | - Brian W. Pedersen
- Center for Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Langelandsgade 140, Århus 8000, Denmark
| | - Elsa F. F. Silva
- Center for Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Langelandsgade 140, Århus 8000, Denmark
- Department of Chemistry, University of Coimbra, 3004 Coimbra, Portugal
| | - Daniel O. Mártire
- Instituto de Investigaciones
Fisicoquímicas Teóricas y Aplicadas (INIFTA), CCT-La
Plata-CONICET, Universidad Nacional de La Plata, Casilla de Correo 16, Sucursal 4 (1900), La Plata, Argentina
| | - Peter R. Ogilby
- Center for Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Langelandsgade 140, Århus 8000, Denmark
| |
Collapse
|
49
|
Pimenta FM, Jensen RL, Holmegaard L, Esipova TV, Westberg M, Breitenbach T, Ogilby PR. Singlet-Oxygen-Mediated Cell Death Using Spatially-Localized Two-Photon Excitation of an Extracellular Sensitizer. J Phys Chem B 2012; 116:10234-46. [DOI: 10.1021/jp304954m] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Frederico M. Pimenta
- Center for
Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Rasmus L. Jensen
- Center for
Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Lotte Holmegaard
- Center for
Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Tatiana V. Esipova
- Department of Biochemistry and
Biophysics, University of Pennsylvania,
Philadelphia, Pennsylvania 19104, United States
| | - Michael Westberg
- Center for
Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Thomas Breitenbach
- Center for
Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| | - Peter R. Ogilby
- Center for
Oxygen Microscopy
and Imaging, Department of Chemistry, Aarhus University, Aarhus 8000, Denmark
| |
Collapse
|
50
|
Guerin P, Bigot E, Patrice T. Evidence for antioxidants consumption in the coronary blood of patients with an acute myocardial infarction. J Thromb Thrombolysis 2012; 35:41-7. [DOI: 10.1007/s11239-012-0774-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|