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Moloudi K, Azariasl S, Abrahamse H, George BP, Yasuda H. Expected role of photodynamic therapy to relieve skin damage in nuclear or radiological emergency: Review. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 110:104517. [PMID: 39032581 DOI: 10.1016/j.etap.2024.104517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 07/02/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
Nuclear and radiological accidents can occur due to poor management, in transportation, radiation therapy and nuclear wards in hospitals, leading to extreme radiation exposure and serious consequences for human health. Additionally, in many of previous radiological accidents, skin damage was observed in patients and survivors due to the high radiation exposure. However, as part of a medical countermeasures in a nuclear/radiological emergency, it is critical to plan for the treatment of radiation-induced skin damage. Hence, the new, non-invasive technology of photodynamic therapy (PDT) is projected to be more effectively used for treating skin damage caused by high-dose radiation. PDT plays an important role in treating, repairing skin damage and promoting wound healing as evidenced by research. This review, highlighted and recommended potential impacts of PDT to repair and decrease radiation-induced skin tissue damage. Moreover, we have suggested some photosensitizer (PS) agent as radio-mitigator drugs to decrease radiobiological effects.
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Affiliation(s)
- Kave Moloudi
- Laser Research Centre, Faculty of Health Science, Doornfontein Campus, University of Johannesburg, Johannesburg 2028, South Africa
| | - Samayeh Azariasl
- Department of Radiation Biophysics, Research Institute for Radiation Biology and Medicine, Hiroshima University, Kasumi, Minami-ku 734-8553, Japan
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Science, Doornfontein Campus, University of Johannesburg, Johannesburg 2028, South Africa
| | - Blassan P George
- Laser Research Centre, Faculty of Health Science, Doornfontein Campus, University of Johannesburg, Johannesburg 2028, South Africa.
| | - Hiroshi Yasuda
- Department of Radiation Biophysics, Research Institute for Radiation Biology and Medicine, Hiroshima University, Kasumi, Minami-ku 734-8553, Japan
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2
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Ritacca AG, Prejanò M, Alberto ME, Marino T, Toscano M, Russo N. On the antibacterial photodynamic inactivation mechanism of Emodin and Dermocybin natural photosensitizers: A theoretical investigation. J Comput Chem 2024; 45:1254-1260. [PMID: 38351736 DOI: 10.1002/jcc.27326] [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: 12/29/2023] [Accepted: 01/26/2024] [Indexed: 04/19/2024]
Abstract
A DFT and TDDFT study has been carried out on monomeric anthraquinones Emodin and Dermocybin (Em, Derm) recently proposed as natural antibacterial photosensitizers able to act also against gram-negative microbes. The computational study has been performed considering the relative amount of neutral and ionic forms of each compound in water, with the variation of pH. The occurrence of both Type I and Type II photoreactions has been explored computing the absorption properties of each species, the spin-orbit coupling constants (SOC), the vertical ionization potentials and the vertical electron affinities. The most plausible deactivation channels leading to the population of excited triplet states have been proposed. Our data indicate Emodin as more active than Dermocybin in antimicrobial photodynamic therapy throughout the Type II mechanism. Our data support a dual TypeI/II activity of the monomeric anthraquinones Emodin and Dermccybin in water, in all the considered protonation states.
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Affiliation(s)
| | - Mario Prejanò
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Rende, Italy
| | - Marta Erminia Alberto
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Rende, Italy
| | - Tiziana Marino
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Rende, Italy
| | - Marirosa Toscano
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Rende, Italy
| | - Nino Russo
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Rende, Italy
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3
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Mandal A, Rai R, Saha S, Kushwaha R, Wei L, Gogoi H, Mandal AA, Yadav AK, Huang H, Dutta A, Dhar P, Banerjee S. Polypyridyl-based Co(III) complexes of vitamin B 6 Schiff base for photoactivated antibacterial therapy. Dalton Trans 2023; 52:17562-17572. [PMID: 37965840 DOI: 10.1039/d3dt02967k] [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: 11/16/2023]
Abstract
Herein, five novel polypyridyl-based Co(III) complexes of Schiff bases, viz., [Co(dpa)(L1)]Cl (1), [Co(dpa)(L2)]Cl (2), [Co(L3)(L2)]Cl (3), [Co(L3)(L1)]Cl (4), and [Co(L4)(L1)]Cl (5), where dpa (dipicolylamine) = bis(2-pyridylmethyl)amine; H2L1 = (E)-2-((2-hydroxybenzylidene)amino)phenol; H2L2 = (E)-5-(hydroxymethyl)-4-(((2-hydroxyphenyl)imino)methyl)-2-methylpyridin-3-ol; L3 = 4'-phenyl-2,2':6',2''-terpyridine (ph-tpy); and L4 = 4'-ferrocenyl-2,2':6',2''-terpyridine (Fc-tpy), were synthesized and characterized. Complexes 1, 3, and 4 were structurally characterized by single-crystal XRD, indicating an octahedral CoIIIN4O2 coordination core. The absorption bands of these complexes were observed in the visible range with a λmax at ∼430-485 nm. Complex 5 displayed an extra absorption band near 545 nm because of a ferrocene moiety. These absorptions in the visible region reflect the potential of the complexes to act as visible-light antimicrobial photodynamic therapy (aPDT) agents. All of these complexes showed reactive oxygen species (ROS)-mediated antibacterial effects against S. aureus (Gram-positive) and E. coli (Gram-negative bacteria) upon low-energy visible light (0.5 J cm-2, 400-700 nm) exposure. Additionally, 1-5 did not show any toxicity toward A549 (Human Lung adenocarcinoma) cells, reflecting their selective bacteria-killing abilities.
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Affiliation(s)
- Apurba Mandal
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.
| | - Rohit Rai
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, Varanasi, Uttar Pradesh, India 221005.
| | - Sukanta Saha
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Rajesh Kushwaha
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.
| | - Li Wei
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, China.
| | - Hemonta Gogoi
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.
| | - Arif Ali Mandal
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.
| | - Ashish Kumar Yadav
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.
| | - Huayi Huang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, 518107, China.
| | - Arnab Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, Maharashtra 400076, India
| | - Prodyut Dhar
- School of Biochemical Engineering, Indian Institute of Technology (BHU), Varanasi, Varanasi, Uttar Pradesh, India 221005.
| | - Samya Banerjee
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India.
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Harmandar K, Giray G, Önal E, Sengul IF, Özdemir S, Atilla D. New AB 3-type porphyrins with piperidine and morpholine motifs; synthesis and photo-physicochemical and biological properties. Dalton Trans 2023; 52:2672-2683. [PMID: 36745464 DOI: 10.1039/d2dt03738f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In this study, new unsymmetrical meso-tetraaryl AB3-type porphyrins 1 and 2 were successfully synthesized by the reaction of p-bromobenzaldehyde and p-hydroxybenzaldehyde with pyrrole in propionic acid. AB3-type porphyrin building blocks with hydroxyl functionality (1 and 2) were further used to generate both covalently linked metal free and Zn(II) porphyrins 3-6 having piperidine and morpholine heterocyclic units. These novel compounds were characterized by using 1H NMR, 13C NMR, FT-IR and MALDI-TOF spectrophotometry. The photophysical and photochemical properties of compounds 1-6 were investigated by employing UV-vis absorption and fluorescence emission spectroscopy in tetrahydrofuran (THF). From the view of biological properties, the antioxidant capacities of porphyrins were determined by using DPPH radical scavenging activity and 2 was determined as the most potent porphyrin analog with a value of 98.42% at 200 mg L-1. All the targeted compounds displayed significant DNA nuclease activity. In addition, the antimicrobial potential of compounds 1-6 was also investigated by a micro-dilution process and 2 was found to be the most effective candidate against the tested microbial strains. The newly synthesized porphyrins also showed 100% microbial cell viability inhibition against E. coli at all examined concentrations. In terms of biofilm inhibition activity, the best results for the maximum photodynamic antimicrobial biofilm inhibition of S. aureus and P. aeruginosa were obtained by compound 2 with the values of 99.75% and 93.39%, respectively.
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Affiliation(s)
- Kevser Harmandar
- Gebze Technical University, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey.
| | - Gülay Giray
- Department of Veterinary Medicine, Ihsangazi Technical Science Vocational School, Ihsangazi, Kastamonu, Turkey
| | - Emel Önal
- Doğuş University, Faculty of Engineering, Ümraniye, 34775, Istanbul, Turkey
| | - Ibrahim F Sengul
- Gebze Technical University, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey.
| | - Sadin Özdemir
- Food Processing Programme, Technical Science Vocational School, Mersin University, TR-33343 Yenisehir, Mersin, Turkey
| | - Devrim Atilla
- Gebze Technical University, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey.
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Antimicrobial and Photoantimicrobial Activities of Chitosan/CNPPV Nanocomposites. Int J Mol Sci 2022; 23:ijms232012519. [DOI: 10.3390/ijms232012519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/13/2022] [Accepted: 10/15/2022] [Indexed: 11/16/2022] Open
Abstract
Multidrug-resistant bacteria represent a global health and economic burden that urgently calls for new technologies to combat bacterial antimicrobial resistance. Here, we developed novel nanocomposites (NCPs) based on chitosan that display different degrees of acetylation (DAs), and conjugated polymer cyano-substituted poly(p-phenylene vinylene) (CNPPV) as an alternative approach to inactivate Gram-negative (E. coli) and Gram-positive (S. aureus) bacteria. Chitosan’s structure was confirmed through FT-Raman spectroscopy. Bactericidal and photobactericidal activities of NCPs were tested under dark and blue-light irradiation conditions, respectively. Hydrodynamic size and aqueous stability were determined by DLS, zeta potential (ZP) and time-domain NMR. TEM micrographs of NCPs were obtained, and their capacity of generating reactive oxygen species (ROS) under blue illumination was also characterized. Meaningful variations on ZP and relaxation time T2 confirmed successful physical attachment of chitosan/CNPPV. All NCPs exhibited a similar and shrunken spherical shape according to TEM. A lower DA is responsible for driving higher bactericidal performance alongside the synergistic effect from CNPPV, lower nanosized distribution profile and higher positive charged surface. ROS production was proportionally found in NCPs with and without CNPPV by decreasing the DA, leading to a remarkable photobactericidal effect under blue-light irradiation. Overall, our findings indicate that chitosan/CNPPV NCPs may constitute a valuable asset for the development of innovative strategies for inactivation and/or photoinactivation of bacteria.
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Santos AL, van Venrooy A, Reed AK, Wyderka AM, García‐López V, Alemany LB, Oliver A, Tegos GP, Tour JM. Hemithioindigo-Based Visible Light-Activated Molecular Machines Kill Bacteria by Oxidative Damage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203242. [PMID: 36002317 PMCID: PMC9596824 DOI: 10.1002/advs.202203242] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Antibiotic resistance is a growing health threat. There is an urgent and critical need to develop new antimicrobial modalities and therapies. Here, a set of hemithioindigo (HTI)-based molecular machines capable of specifically killing Gram-positive bacteria within minutes of activation with visible light (455 nm at 65 mW cm-2 ) that are safe for mammalian cells is described. Importantly, repeated exposure of bacteria to HTI does not result in detectable development of resistance. Visible light-activated HTI kill both exponentially growing bacterial cells and antibiotic-tolerant persister cells of various Gram-positive strains, including methicillin-resistant S. aureus (MRSA). Visible light-activated HTI also eliminate biofilms of S. aureus and B. subtilis in as little as 1 h after light activation. Quantification of reactive oxygen species (ROS) formation and protein carbonyls, as well as assays with various ROS scavengers, identifies oxidative damage as the underlying mechanism for the antibacterial activity of HTI. In addition to their direct antibacterial properties, HTI synergize with conventional antibiotics in vitro and in vivo, reducing the bacterial load and mortality associated with MRSA infection in an invertebrate burn wound model. To the best of the authors' knowledge, this is the first report on the antimicrobial activity of HTI-based molecular machines.
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Affiliation(s)
- Ana L. Santos
- Department of ChemistryRice UniversityHoustonTX77005USA
- IdISBA – Fundación de Investigación Sanitaria de las Islas BalearesPalma07120Spain
| | | | - Anna K. Reed
- Department of ChemistryRice UniversityHoustonTX77005USA
| | | | | | - Lawrence B. Alemany
- Department of ChemistryRice UniversityHoustonTX77005USA
- Shared Equipment AuthorityRice UniversityHoustonTX77005USA
| | - Antonio Oliver
- IdISBA – Fundación de Investigación Sanitaria de las Islas BalearesPalma07120Spain
- Servicio de MicrobiologiaHospital Universitari Son EspasesPalma07120Spain
| | - George P. Tegos
- Office of ResearchReading HospitalTower Health420 S. Fifth AvenueWest ReadingPA19611USA
| | - James M. Tour
- Department of ChemistryRice UniversityHoustonTX77005USA
- Smalley‐Curl InstituteRice UniversityHoustonTX77005USA
- Department of Materials Science and NanoengineeringRice UniversityHoustonTX77005USA
- NanoCarbon Center and the Welch Institute for Advanced MaterialsRice UniversityHoustonTX77005USA
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7
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Combination of photodynamic antimicrobial chemotherapy and ciprofloxacin to combat S. aureus and E. coli resistant biofilms. Photodiagnosis Photodyn Ther 2022; 42:103142. [PMID: 36191747 DOI: 10.1016/j.pdpdt.2022.103142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/13/2022] [Accepted: 09/29/2022] [Indexed: 11/21/2022]
Abstract
Photodynamic antimicrobial chemotherapy (PACT) coupled with an antibiotic, ciprofloxacin (CIP), was investigated using two indium metallated cationic photosensitizers, a porphyrin (1) and a phthalocyanine (2). Applying PACT followed by the antibiotic treatment led to a remarkable reduction in the biofilm cell survival of two antibiotic-resistant bacterial strains, S. aureus (Gram-positive) and E. coli (Gram-nenative). Treating both bacteria strains with PACT alone showed no significant activity at 32 µM with 15 min irradiation, while CIP alone exhibited a minimum biofilm inhibition concentration (MBIC) at 4 and 8 µg/mL on S. aureus and E. coli, respectively following 24 h incubation. The combined treatment resulted in the complete eradication of the matured biofilms with high log10 reduction values of 7.05 and 7.20 on S. aureus and E. coli, respectively, at low concentrations. It was found that 15 min PACT irradiation of 8 µM of complexes (1 and 2) combined with 2 µg/mL of CIP have a 100% reduction of the resistant S. aureus biofilms. Whereas the total killing of E. coli was obtained when combining 8 µM of complex 1 and 16 µM of complex 2 both combined with 4 µg/mL of CIP.
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Ozketen A, Karaman O, Ozdemir A, Soysal I, Kizilenis C, Nteli Chatzioglou A, Cicek YA, Kolemen S, Gunbas G. Selenophene-Modified Boron Dipyrromethene-Based Photosensitizers Exhibit Photodynamic Inhibition on a Broad Range of Bacteria. ACS OMEGA 2022; 7:33916-33925. [PMID: 36188264 PMCID: PMC9520714 DOI: 10.1021/acsomega.2c02868] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/05/2022] [Indexed: 05/05/2023]
Abstract
Microorganisms are crucial for human survival in view of both mutualistic and pathogen interactions. The control of the balance could be achieved by use of the antibiotics. There is a continuous arms race that exists between the pathogen and the antibiotics. The emergence of multidrug-resistant (MDR) bacteria threatens health even for insignificant injuries. However, the discovery of new antibiotics is not a fast process, and the healthcare system will suffer if the evolution of MDR lingers in its current frequency. The cationic photosensitizers (PSs) provide a unique approach to develop novel, light-inducible antimicrobial drugs. Here, we examine the antimicrobial activity of innovative selenophene-modified boron dipyrromethene (BODIPY)-based PSs on a variety of Gram (+) and Gram (-) bacteria. The candidates demonstrate a level of confidence in both light-dependent and independent inhibition of bacterial growth. Among them, selenophene conjugated PS candidates (BOD-Se and BOD-Se-I) are promising agents to induce photodynamic inhibition (PDI) on all experimented bacteria: E. coli, S. aureus, B. cereus, and P. aeruginosa. Further characterizations revealed that photocleavage ability on DNA molecules could be potentially advantageous over extracellular DNA possessing biofilm-forming bacteria such as B. cereus and P. aeruginosa. Microscopy analysis with fluorescent BOD-H confirmed the colocalization on GFP expressing E. coli.
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Affiliation(s)
| | - Osman Karaman
- Department
of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | - Alara Ozdemir
- Department
of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | - Isil Soysal
- Department
of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | - Caglayan Kizilenis
- Department
of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | | | - Yagiz Anil Cicek
- Department
of Chemistry, Middle East Technical University, Ankara 06800, Turkey
| | - Safacan Kolemen
- Department
of Chemistry, Koc University, Istanbul 34450, Turkey
| | - Gorkem Gunbas
- Department
of Chemistry, Middle East Technical University, Ankara 06800, Turkey
- Biochemistry
Graduate Program, Middle East Technical
University, Ankara 06800, Turkey
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Ozlem-Caliskan S, Ertabaklar H, Bilgin MD, Ertug S. Evaluation of photodynamic therapy against Leishmania tropica promastigotes using different photosensitizers. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2022; 38:354-364. [PMID: 34897808 DOI: 10.1111/phpp.12758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 11/24/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Photodynamic therapy is a two-step procedure, involving the use of photosensitizing agents followed by selective illumination of the target lesion with visible light. Photodynamic therapy has been described recently as a promising strategy for treatment of leishmaniasis. This study aims to evaluate the in vitro phototoxic, morphological, and apoptotic effect of methylene blue, toluidine blue, chloro-aluminum phthalocyanine, and pheophorbide a-mediated photodynamic therapy on the viability of Leishmania tropica promastigotes. METHODS Parasites were treated with methylene blue, toluidine blue, chloro-aluminum phthalocyanine, and pheophorbide a or/and methylene blue, toluidine blue, chloro-aluminum phthalocyanine, and pheophorbide a-mediated photodynamic therapy, and cell proliferation, morphological changes, and apoptosis were evaluated by XTT, giemsa staining, DAPI staining, and DNA fragmentation, respectively. RESULTS Parasite viability was significantly different in between the groups treated with methylene blue, toluidine blue, and pheophorbide a, with or without irradiation. chloro-aluminum phthalocyanine treatment did not lead to any alterations in cell viability in Leishmania tropica promastigotes with or without irradiation. DAPI staining results indicated that apoptotic bodies and nucleus fragmentation started to be visible in methylene blue, chloro-aluminum phthalocyanine, and pheophorbide a-mediated photodynamic therapy groups. DNA ladder pattern which is used to define apoptosis was observed in irradiated methylene blue, chloro-aluminum phthalocyanine, and pheophorbide a groups. CONCLUSIONS The results revealed that apoptosis-induced cell death was observed in Leishmania tropica promastigotes after the application of photosensitizers in combination with light irradiation.
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Affiliation(s)
- Sercin Ozlem-Caliskan
- Department of Biophysics, Institute of Health Sciences, Aydin Adnan Menderes University, Aydin, Turkey
| | - Hatice Ertabaklar
- Department of Parasitology, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Mehmet Dincer Bilgin
- Department of Biophysics, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
| | - Sema Ertug
- Department of Parasitology, Faculty of Medicine, Aydin Adnan Menderes University, Aydin, Turkey
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10
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In vitro study on the effects of photodynamic inactivation using methyl pheophorbide a, PhotoMed, PhotoCure, and 660 nm diode laser on Candida albicans. Photodiagnosis Photodyn Ther 2022; 38:102871. [DOI: 10.1016/j.pdpdt.2022.102871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/11/2022] [Accepted: 04/14/2022] [Indexed: 11/19/2022]
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Histological evaluation of skin lesions induced by Leishmania braziliensis treated by PACT using Laser light and 1.9 dimethyl-methylene blue. Photodiagnosis Photodyn Ther 2022; 38:102815. [DOI: 10.1016/j.pdpdt.2022.102815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 11/22/2022]
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12
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Murugaiyan J, Kumar PA, Rao GS, Iskandar K, Hawser S, Hays JP, Mohsen Y, Adukkadukkam S, Awuah WA, Jose RAM, Sylvia N, Nansubuga EP, Tilocca B, Roncada P, Roson-Calero N, Moreno-Morales J, Amin R, Kumar BK, Kumar A, Toufik AR, Zaw TN, Akinwotu OO, Satyaseela MP, van Dongen MBM. Progress in Alternative Strategies to Combat Antimicrobial Resistance: Focus on Antibiotics. Antibiotics (Basel) 2022; 11:200. [PMID: 35203804 PMCID: PMC8868457 DOI: 10.3390/antibiotics11020200] [Citation(s) in RCA: 99] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 11/24/2022] Open
Abstract
Antibiotic resistance, and, in a broader perspective, antimicrobial resistance (AMR), continues to evolve and spread beyond all boundaries. As a result, infectious diseases have become more challenging or even impossible to treat, leading to an increase in morbidity and mortality. Despite the failure of conventional, traditional antimicrobial therapy, in the past two decades, no novel class of antibiotics has been introduced. Consequently, several novel alternative strategies to combat these (multi-) drug-resistant infectious microorganisms have been identified. The purpose of this review is to gather and consider the strategies that are being applied or proposed as potential alternatives to traditional antibiotics. These strategies include combination therapy, techniques that target the enzymes or proteins responsible for antimicrobial resistance, resistant bacteria, drug delivery systems, physicochemical methods, and unconventional techniques, including the CRISPR-Cas system. These alternative strategies may have the potential to change the treatment of multi-drug-resistant pathogens in human clinical settings.
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Affiliation(s)
- Jayaseelan Murugaiyan
- Department of Biological Sciences, SRM University-AP, Guntur District, Amaravati 522240, India;
| | - P. Anand Kumar
- Department of Veterinary Microbiology, NTR College of Veterinary Science, Sri Venkateswara Veterinary University, Gannavaram 521102, India;
| | - G. Srinivasa Rao
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Science, Sri Venkateswara Veterinary University, Tirupati 517502, India;
| | - Katia Iskandar
- Department of Mathématiques Informatique et Télécommunications, Université Toulouse III, Paul Sabatier, INSERM, UMR 1295, 31000 Toulouse, France;
- INSPECT-LB: Institut National de Santé Publique, d’Épidémiologie Clinique et de Toxicologie-Liban, Beirut 6573, Lebanon
- Faculty of Pharmacy, Lebanese University, Beirut 6573, Lebanon
| | | | - John P. Hays
- Department of Medical Microbiology, Infectious Diseases, Erasmus University Medical Centre (Erasmus MC), 3015 GD Rotterdam, The Netherlands;
| | - Yara Mohsen
- Department of Epidemiology, High Institute of Public Health, Alexandria University, Alexandria 21544, Egypt;
- Infectious Disease Clinical Pharmacist, Antimicrobial Stewardship Department, International Medical Center Hospital, Cairo 11511, Egypt
| | - Saranya Adukkadukkam
- Department of Biological Sciences, SRM University-AP, Guntur District, Amaravati 522240, India;
| | - Wireko Andrew Awuah
- Faculty of Medicine, Sumy State University, 40007 Sumy, Ukraine; (W.A.A.); (A.-R.T.)
| | - Ruiz Alvarez Maria Jose
- Research Coordination and Support Service, National Institute of Health (ISS) Viale Regina -Elena, 299, 00161 Rome, Italy;
| | - Nanono Sylvia
- Infectious Diseases Institute (IDI), College of Health Sciences, Makerere University, Kampala 7072, Uganda;
| | | | - Bruno Tilocca
- Department of Health Science, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (B.T.); (P.R.)
| | - Paola Roncada
- Department of Health Science, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (B.T.); (P.R.)
| | - Natalia Roson-Calero
- ISGlobal, Hospital Clínic-Universitat de Barcelona, 08036 Barcelona, Spain; (N.R.-C.); (J.M.-M.)
| | - Javier Moreno-Morales
- ISGlobal, Hospital Clínic-Universitat de Barcelona, 08036 Barcelona, Spain; (N.R.-C.); (J.M.-M.)
| | - Rohul Amin
- James P Grant School of Public Health, BRAC University, Dhaka 1212, Bangladesh;
| | - Ballamoole Krishna Kumar
- Nitte (Deemed to be University), Division of Infectious Diseases, Nitte University Centre for Science Education and Research, Deralakatte, Mangalore 575018, India;
| | - Abishek Kumar
- Department of Microbiology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India;
| | - Abdul-Rahman Toufik
- Faculty of Medicine, Sumy State University, 40007 Sumy, Ukraine; (W.A.A.); (A.-R.T.)
| | - Thaint Nadi Zaw
- Oxford University Hospitals NHS Foundation Trust, Oxford OX3 9DU, UK;
| | - Oluwatosin O. Akinwotu
- Department of Microbiology and Biotechnology Centre, Maharaja Sayajirao University of Baroda, Vadodara 390002, India;
- Environmental and Biotechnology Unit, Department of Microbiology, University of Ibadan, 200132 Ibadan, Nigeria
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13
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Yeo YH, Chathuranga K, Lee JS, Koo J, Park WH. Multifunctional and thermoresponsive methylcellulose composite hydrogels with photothermal effect. Carbohydr Polym 2022; 277:118834. [PMID: 34893251 DOI: 10.1016/j.carbpol.2021.118834] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/19/2021] [Accepted: 10/27/2021] [Indexed: 01/10/2023]
Abstract
Multifunctional and thermoresponsive hydrogels can be used as soft materials in various medical applications, such as beauty devices, drug delivery, and near-infrared (NIR) lasers. In this study, methylcellulose (MC) composite hydrogels containing tannic acid (TA) and Fe3+ were prepared via a simple, fast process. The MC composite hydrogel contains hydrogen bonds between the MC polymer and TA and coordination bonds between TA and Fe3+, without losing the reversible thermogelation properties of the MC polymer. The gelation rates and mechanical properties of the MC composite hydrogel were controlled by varying its TA and Fe3+ contents. In particular, the hydrogel with a TA-Fe chelating complex showed an excellent photothermal effect, indicating its potential application in cosmetic beauty devices. It also exhibited UV-blocking, antioxidant, and antibacterial properties owing to the multifunctional TA. The facile processing of these MC/TA/Fe hydrogels provides new opportunities for biomedical applications and beauty devices employing NIR laser therapy.
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Affiliation(s)
- Yong Ho Yeo
- Department of Organic Materials Engineering, Chungnam National University, Daejeon 34134, South Korea
| | - Kiramage Chathuranga
- Department of Veterinary Microbiology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, South Korea
| | - Jong Soo Lee
- Department of Veterinary Microbiology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, South Korea
| | - Jaseung Koo
- Department of Organic Materials Engineering, Chungnam National University, Daejeon 34134, South Korea
| | - Won Ho Park
- Department of Organic Materials Engineering, Chungnam National University, Daejeon 34134, South Korea.
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14
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Ran B, Wang Z, Cai W, Ran L, Xia W, Liu W, Peng X. Organic Photo-antimicrobials: Principles, Molecule Design, and Applications. J Am Chem Soc 2021; 143:17891-17909. [PMID: 34677069 DOI: 10.1021/jacs.1c08679] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The emergence of multi-drug-resistant pathogens threatens the healthcare systems world-wide. Recent advances in phototherapy (PT) approaches mediated by photo-antimicrobials (PAMs) provide new opportunities for the current serious antibiotic resistance. During the PT treatment, reactive oxygen species or heat produced by PAMs would react with the cell membrane, consequently leaking cytoplasm components and effectively eradicating different pathogens like bacteria, fungi, viruses, and even parasites. This Perspective will concentrate on the development of different organic photo-antimicrobials (OPAMs) and their application as practical therapeutic agents into therapy for local infections, wound dressings, and removal of biofilms from medical devices. We also discuss how to design highly efficient OPAMs by modifying the chemical structure or conjugating with a targeting component. Moreover, this Perspective provides a discussion of the general challenges and direction for OPAMs and what further needs to be done. It is hoped that through this overview, OPAMs can prosper and will be more widely used for microbial infections in the future, especially at a time when the global COVID-19 epidemic is getting more serious.
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Affiliation(s)
- Bei Ran
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Zuokai Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Wenlin Cai
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Lei Ran
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Wenxi Xia
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Weijian Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.,State Key Laboratory of Fine Chemicals, Shenzhen Research Institute, Dalian University of Technology, Shenzhen 518057, PR China
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15
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Feng Y, Coradi Tonon C, Ashraf S, Hasan T. Photodynamic and antibiotic therapy in combination against bacterial infections: efficacy, determinants, mechanisms, and future perspectives. Adv Drug Deliv Rev 2021; 177:113941. [PMID: 34419503 DOI: 10.1016/j.addr.2021.113941] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/23/2021] [Accepted: 08/17/2021] [Indexed: 12/12/2022]
Abstract
Antibiotic treatment, the mainstay for the control of bacterial infections, is greatly hampered by the global prevalence of multidrug-resistant (MDR) bacteria. Photodynamic therapy (PDT) is effective against MDR infections, but PDT-induced bacterial inactivation is often incomplete, causing the relapse of infections. Combination of PDT and antibiotics is a promising strategy to overcome the limitation of both antibiotic treatment and PDT, exerting increased disinfection efficacy on MDR bacterial pathogens versus either of the monotherapies alone. In this review, we present an overview of the therapeutic effects of PDT/antibiotic combinations that have been developed. We further summarize the influencing factors and the governing molecular mechanisms of the therapeutic outcomes of PDT/antibiotic combinations. In the end, we provide concluding remarks on the strengths, limitations, and future research directions of PDT/antibiotic combination therapy to guide its appropriate usage and further development.
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Affiliation(s)
- Yanfang Feng
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Caroline Coradi Tonon
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Shoaib Ashraf
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Tayyaba Hasan
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Health Sciences and Technology (Harvard-MIT), Cambridge, MA, USA.
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16
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Pucci C, Martinelli C, Degl'Innocenti A, Desii A, De Pasquale D, Ciofani G. Light-Activated Biomedical Applications of Chlorophyll Derivatives. Macromol Biosci 2021; 21:e2100181. [PMID: 34212510 DOI: 10.1002/mabi.202100181] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/06/2021] [Indexed: 02/01/2023]
Abstract
Tetrapyrroles are the basis of essential physiological functions in most living organisms. These compounds represent the basic scaffold of porphyrins, chlorophylls, and bacteriochlorophylls, among others. Chlorophyll derivatives, obtained by the natural or artificial degradation of chlorophylls, present unique properties, holding great potential in the scientific and medical fields. Indeed, they can act as cancer-preventing agents, antimutagens, apoptosis inducers, efficient antioxidants, as well as antimicrobial and immunomodulatory molecules. Moreover, thanks to their peculiar optical properties, they can be exploited as photosensitizers for photodynamic therapy and as vision enhancers. Most of these molecules, however, are highly hydrophobic and poorly soluble in biological fluids, and may display undesired toxicity due to accumulation in healthy tissues. The advent of nanomedicine has prompted the development of nanoparticles acting as carriers for chlorophyll derivatives, facilitating their targeted administration with demonstrated applicability in diagnosis and therapy. In this review, the chemical and physical properties of chlorophyll derivatives that justify their usage in the biomedical field, with particular regard to light-activated dynamics are described. Their role as antioxidants and photoactive agents are discussed, introducing the most recent nanomedical applications and focusing on inorganic and organic nanocarriers exploited in vitro and in vivo.
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Affiliation(s)
- Carlotta Pucci
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy
| | - Chiara Martinelli
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, Milan, 20133, Italy
| | - Andrea Degl'Innocenti
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy
| | - Andrea Desii
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy
| | - Daniele De Pasquale
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy
| | - Gianni Ciofani
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy
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Photodynamic Therapy Combined with Antibiotics or Antifungals against Microorganisms That Cause Skin and Soft Tissue Infections: A Planktonic and Biofilm Approach to Overcome Resistances. Pharmaceuticals (Basel) 2021; 14:ph14070603. [PMID: 34201530 PMCID: PMC8308592 DOI: 10.3390/ph14070603] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 12/18/2022] Open
Abstract
The present review covers combination approaches of antimicrobial photodynamic therapy (aPDT) plus antibiotics or antifungals to attack bacteria and fungi in vitro (both planktonic and biofilm forms) focused on those microorganisms that cause infections in skin and soft tissues. The combination can prevent failure in the fight against these microorganisms: antimicrobial drugs can increase the susceptibility of microorganisms to aPDT and prevent the possibility of regrowth of those that were not inactivated during the irradiation; meanwhile, aPDT is effective regardless of the resistance pattern of the strain and their use does not contribute to the selection of antimicrobial resistance. Additive or synergistic antimicrobial effects in vitro are evaluated and the best combinations are presented. The use of combined treatment of aPDT with antimicrobials could help overcome the difficulty of fighting high level of resistance microorganisms and, as it is a multi-target approach, it could make the selection of resistant microorganisms more difficult.
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18
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Almeida MVDC, Moura AC, Santos L, Gominho L, Cavalcanti UDNT, Romeiro K. Photodynamic Therapy as an adjunct in the Treatment of Medication-Related Osteonecrosis of the Jaw: A Case Report. J Lasers Med Sci 2021; 12:e12. [PMID: 34084738 DOI: 10.34172/jlms.2021.12] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Introduction: Medication-related osteonecrosis of the jaw (MRONJ) corresponds to an adverse effect of the use of drugs such as bisphosphonates and denosumab. This condition is often associated with pain, infection, purulent secretion, paraesthesia, tooth mobility and halitosis, decreasing the patient's quality of life. The management of MRONJ tends to be conservative, through the guidance of oral hygiene, antibiotic therapy and mouthwashes. However, the use of antimicrobial photodynamic therapy (aPDT) has shown promise in the treatment of these injuries. The purpose of this article is to report a case of MRONJ treatment associated with aPDT. Case Report: A 75-year-old patient, with a history of breast cancer and use of intravenous Zoledronic Acid, presented with bilateral MRONJ lesions in tuberosity on the right and left sides. Treatment was conservatively instituted with the use of aPDT as an adjuvant. After 12 aPDT sessions, complete regression of the lesion was observed. However, after two weeks, the presence of a new lesion was noted, this time in the anterior region of the maxilla. The same protocol previously established was followed and after two aPDT sessions, the patient returned with complete lesion regression. Conclusion: The use of aPDT may represent an important adjuvant within a set of clinical protocols in the treatment of MRONJ.
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Affiliation(s)
- Marcelo Vieira da Costa Almeida
- Department of Oral Medicine, Real Hospital Português de Beneficência em Pernambuco, 4760 - Paissandu, 52010-075, Recife - PE, Brazil
| | - Antonio C Moura
- Department of Oral Medicine, Real Hospital Português de Beneficência em Pernambuco, 4760 - Paissandu, 52010-075, Recife - PE, Brazil
| | - Lúcia Santos
- Department of Oral Medicine, Real Hospital Português de Beneficência em Pernambuco, 4760 - Paissandu, 52010-075, Recife - PE, Brazil
| | - Luciana Gominho
- Department of Restorative Dentistry, Universidade Federal da Paraíba - UFPB, s/n, Cidade Universitária - João Pessoa, 58051-900, PB, Brazil
| | | | - Kaline Romeiro
- Department of Oral Medicine, Real Hospital Português de Beneficência em Pernambuco, 4760 - Paissandu, 52010-075, Recife - PE, Brazil
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Hernández-Gil J, Lewis JS, Reiner T, Drain CM, Gonzales J. Leveraging synthetic chlorins for bio-imaging applications. Chem Commun (Camb) 2021; 56:12608-12611. [PMID: 32945820 DOI: 10.1039/d0cc05494a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Synthetic chlorins are not only fluorescent, the modulation of the tetrapyrrole system can also chelate metal ions. Conjugation of linkers at their pyrrolidines allows for conjugation to bio-molecules to create target specificity. By altering these chemo-photophysical properties, this work facilitates the use of chlorins in fluorescent imaging and positron emission tomography (PET).
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Affiliation(s)
- Javier Hernández-Gil
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA. and Biomedical MRI/MoSAIC, Department of Imaging and Pathology, Katholieke Universiteit Leuven, Herestraat 49, B3000, Leuven, Belgium
| | - Jason S Lewis
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA. and Weill-Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA and Molecular Pharmacology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
| | - Thomas Reiner
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA. and Weill-Cornell Medical College, 1300 York Avenue, New York, NY 10065, USA and Chemical Biology Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
| | - Charles Michael Drain
- Department of Chemistry, Hunter College of The City University of New York, 695 Park Avenue, New York, NY 10065, USA
| | - Junior Gonzales
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA. and Department of Chemistry, Hunter College of The City University of New York, 695 Park Avenue, New York, NY 10065, USA
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20
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Abstract
Phthalocyanines are aromatic or macrocyclic organic compounds and attract great attention due to their numerous properties. They have many high-tech applications in different areas of the industry such as dyestuffs, thermal printing screens, photovoltaic solar cells, membrane catalytic reactors, semiconductor materials and gas sensors. In the last decade, electrochemical sensor studies have accelerated with the catalytic lighting. It plays a dominant role in the development and implementation of new generation sensors. The aim of this study is to review the electrochemical methods based on electrode modification with phthalocyanines and to shed light on new application areas of phthalocyanines. The focal point was based on the sensor applications of phthalocyanines in the determination of drugs, pesticides, organic materials and metals etc. by electrochemical methods. Experimental conditions and some validation parameters of the sensor applications such as metal phthalocyanine types, indicator electrodes, selectivity, working ranges, detection limits, and analytical applications were discussed. Consequently, this is the first review dealing with the applications of phthalocyanines in electrochemical sensors for the sensitive determination of analytes in a variety of matrices.
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Affiliation(s)
- Ersin Demir
- Department of Analytical Chemistry, Faculty of Pharmacy, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Hulya Silah
- Department of Chemistry, Faculty of Art & Science, Bilecik Şeyh Edebali University, Bilecik, Turkey
| | - Bengi Uslu
- Department of Analytical Chemistry, Faculty of Pharmacy, Ankara University, Ankara, Turkey
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21
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Kim JW, Lim HS. Effect of antimicrobial photodynamic therapy with Radachlorin and a 660 nm diode laser on Pseudomonas aeruginosa: An in vitro study. Photodiagnosis Photodyn Ther 2020; 31:101931. [DOI: 10.1016/j.pdpdt.2020.101931] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 06/13/2020] [Accepted: 07/17/2020] [Indexed: 01/22/2023]
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22
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Iron terephthalate metal–organic framework (MOF-235) as an efficient adsorbent for removal of toluidine blue dye from aqueous solution using Box–Behnken design as multivariate optimization approach. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01958-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Sampaio FJP, de Oliveira SCPS, Crugeira PJL, Monteiro JSC, de Araújo Fagnani SRC, Pepe IM, de Almeida PF, Pinheiro ALB. aPDT using nanoconcentration of 1,9-dimethylmethylene blue associated to red light is efficacious in killing Enterococcus faecalis ATCC 29212 in vitro. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 200:111654. [PMID: 31671373 DOI: 10.1016/j.jphotobiol.2019.111654] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 10/10/2019] [Accepted: 10/15/2019] [Indexed: 01/22/2023]
Abstract
The Enterococcus faecalis is a microorganism that causes multiple forms of resistance to a wide range of drugs used clinically. aPDT is a technique in which a visible light activates photosensitizer (PS), resulting in generation of reactive oxygen species that kill bacteria unselectively via an oxidative burst. aPDT is an alternative to antibiotics with the advantage of not causing resistance. The search for an alternative treatment of infections caused by E. faecalis, without using antibiotics, is off great clinical importance. The aim of present investigation was to assess the efficacy of using 3.32 ηg/mL of 1,9-dimethylmethylene blue (DMMB) as photosensitizer associated with the use of either Laser (λ660 nm) or LED (λ632 ± 2 nm) using different energy densities (6, 12 and 18 J/cm2) to kill E. faecalis in vitro. Under different experimental conditions, 14 study groups, in triplicate, were used to compare the efficacy of the aPDT carried out with either the laser or LED lights using different energy densities associated to DMMB. The most probable number method (MPN) was used for quantitative analysis. Photodynamic antimicrobial effectiveness was directly proportional to the energy density used, reaching at 18 J/cm2, 99.999998% reduction of the counts of E. faecalis using both light sources. The results of this study showed that the use of 3.32 ηg/mL of DMMB associated with the use 18 J/cm2 of LED light (λ632 ± 2 nm) reduced >7-log counts of planktonic culture of E. faecalis.
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Affiliation(s)
- Fernando José P Sampaio
- Center of Biophotonics, Federal University of Bahia, 62, Araujo Pinho Ave, Canela, Salvador, BA 40110-150, Brazil; National Institute of Basic Optics and Applied to Life Science, 400, Trabalhador São-Carlense Ave, Parque Arnold Schimidt, São Carlos, SP CEP:13566-590, Brazil
| | - Susana C P S de Oliveira
- Center of Biophotonics, Federal University of Bahia, 62, Araujo Pinho Ave, Canela, Salvador, BA 40110-150, Brazil
| | - Pedro Jorge L Crugeira
- Center of Biophotonics, Federal University of Bahia, 62, Araujo Pinho Ave, Canela, Salvador, BA 40110-150, Brazil; Laboratory of Biotechnology and Ecology of Micro-organisms, Institute of Health Science, Federal University of Bahia, Reitor Miguel Calmon Ave, S/N, Salvador, BA CEP:40110-100, Brazil
| | - Juliana S C Monteiro
- Center of Biophotonics, Federal University of Bahia, 62, Araujo Pinho Ave, Canela, Salvador, BA 40110-150, Brazil; Department of Biology, Feira de Santana State University, Feira de Santa, BA 44036-900, Brazil
| | - Sandra R C de Araújo Fagnani
- Center of Biophotonics, Federal University of Bahia, 62, Araujo Pinho Ave, Canela, Salvador, BA 40110-150, Brazil
| | - Iuri M Pepe
- Laboratory of Optical Properties, Institute of Physics, Federal University of Bahia, Campus Universitário de Ondina, Salvador, BA CEP: 40210-340, Brazil.
| | - Paulo Fernando de Almeida
- Laboratory of Biotechnology and Ecology of Micro-organisms, Institute of Health Science, Federal University of Bahia, Reitor Miguel Calmon Ave, S/N, Salvador, BA CEP:40110-100, Brazil.
| | - Antônio L B Pinheiro
- Center of Biophotonics, Federal University of Bahia, 62, Araujo Pinho Ave, Canela, Salvador, BA 40110-150, Brazil; National Institute of Basic Optics and Applied to Life Science, 400, Trabalhador São-Carlense Ave, Parque Arnold Schimidt, São Carlos, SP CEP:13566-590, Brazil; Brasil University Scientific and Techological Institute, 235, Carolina Fonseca St, Itaquera, São Paulo, SP CEP:08230-030, Brazil.
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24
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Amos-Tautua BM, Songca SP, Oluwafemi OS. Application of Porphyrins in Antibacterial Photodynamic Therapy. Molecules 2019; 24:E2456. [PMID: 31277423 PMCID: PMC6650910 DOI: 10.3390/molecules24132456] [Citation(s) in RCA: 142] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 06/25/2019] [Accepted: 06/28/2019] [Indexed: 11/28/2022] Open
Abstract
Antibiotics are commonly used to control, treat, or prevent bacterial infections, however bacterial resistance to all known classes of traditional antibiotics has greatly increased in the past years especially in hospitals rendering certain therapies ineffective. To limit this emerging public health problem, there is a need to develop non-incursive, non-toxic, and new antimicrobial techniques that act more effectively and quicker than the current antibiotics. One of these effective techniques is antibacterial photodynamic therapy (aPDT). This review focuses on the application of porphyrins in the photo-inactivation of bacteria. Mechanisms of bacterial resistance and some of the current 'greener' methods of synthesis of meso-phenyl porphyrins are discussed. In addition, significance and limitations of aPDT are also discussed. Furthermore, we also elaborate on the current clinical applications and the future perspectives and directions of this non-antibiotic therapeutic strategy in combating infectious diseases.
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Affiliation(s)
- Bamidele M Amos-Tautua
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein 2028, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2000, South Africa
| | - Sandile P Songca
- Department of Chemistry, University of KwaZulu-Natal, Private Bag X 54001, Durban 4000, South Africa
| | - Oluwatobi S Oluwafemi
- Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, P.O. Box 17011, Doornfontein 2028, South Africa.
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg 2000, South Africa.
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25
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Jia Q, Song Q, Li P, Huang W. Rejuvenated Photodynamic Therapy for Bacterial Infections. Adv Healthc Mater 2019; 8:e1900608. [PMID: 31240867 DOI: 10.1002/adhm.201900608] [Citation(s) in RCA: 200] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/13/2019] [Indexed: 12/31/2022]
Abstract
The emergence of multidrug resistant bacterial strains has hastened the exploration of advanced microbicides and antibacterial techniques. Photodynamic antibacterial therapy (PDAT), an old-fashioned technique, has been rejuvenated to combat "superbugs" and biofilm-associated infections owing to its excellent characteristics of noninvasiveness and broad antibacterial spectrum. More importantly, bacteria are less likely to produce drug resistance to PDAT because it does not require specific targeting interaction between photosensitizers (PSs) and bacteria. This review mainly focuses on recent developments and future prospects of PDAT. The mechanisms of PDAT against bacteria and biofilms are briefly introduced. In addition to classical macrocyclic PSs, several innovative PSs, including non-self-quenching PSs, conjugated polymer-based PSs, and nano-PSs, are summarized in detail. Numerous multifunctional PDAT systems such as in situ light-activated PDAT, stimuli-responsive PDAT, oxygen self-enriching enhanced PDAT, and PDAT-based multimodal therapy are highlighted to overcome the inherent defects of PDAT in vivo (e.g., limited penetration depth of light and hypoxic environment of infectious sites).
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Affiliation(s)
- Qingyan Jia
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Qing Song
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Peng Li
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
| | - Wei Huang
- Xi'an Institute of Flexible Electronics (IFE)Xi'an Institute of Biomedical Materials and Engineering (IBME)Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China
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26
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Nakonechny F, Barel M, David A, Koretz S, Litvak B, Ragozin E, Etinger A, Livne O, Pinhasi Y, Gellerman G, Nisnevitch M. Dark Antibacterial Activity of Rose Bengal. Int J Mol Sci 2019; 20:E3196. [PMID: 31261890 PMCID: PMC6651402 DOI: 10.3390/ijms20133196] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 11/27/2022] Open
Abstract
The global spread of bacterial resistance to antibiotics promotes a search for alternative approaches to eradication of pathogenic bacteria. One alternative is using photosensitizers for inhibition of Gram-positive and Gram-negative bacteria under illumination. Due to low penetration of visible light into tissues, applications of photosensitizers are currently limited to treatment of superficial local infections. Excitation of photosensitizers in the dark can be applied to overcome this problem. In the present work, dark antibacterial activity of the photosensitizer Rose Bengal alone and in combination with antibiotics was studied. The minimum inhibitory concentrations (MIC) value of Rose Bengal against S. aureus dropped in the presence of sub-MIC concentrations of ciprofloxacin, levofloxacin, methicillin, and gentamicin. Free Rose Bengal at sub-MIC concentrations can be excited in the dark by ultrasound at 38 kHz. Rose Bengal immobilized onto silicon showed good antibacterial activity in the dark under ultrasonic activation, probably because of Rose Bengal leaching from the polymer during the treatment. Exposure of bacteria to Rose Bengal in the dark under irradiation by electromagnetic radio frequency waves in the 9 to 12 GHz range caused a decrease in the bacterial concentration, presumably due to resonant absorption of electromagnetic energy, its transformation into heat and subsequent excitation of Rose Bengal.
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Affiliation(s)
- Faina Nakonechny
- Department of Chemical Engineering, Biotechnology and Materials, Ariel University, Ariel 4070000, Israel
| | - Margarita Barel
- Department of Chemical Engineering, Biotechnology and Materials, Ariel University, Ariel 4070000, Israel
| | - Arad David
- Department of Chemical Engineering, Biotechnology and Materials, Ariel University, Ariel 4070000, Israel
| | - Simor Koretz
- Department of Chemical Engineering, Biotechnology and Materials, Ariel University, Ariel 4070000, Israel
| | - Boris Litvak
- Department of Electrical and Electronics Engineering, Ariel University, Ariel 4070000, Israel
| | - Elena Ragozin
- Department of Chemical Sciences, Ariel University, Ariel 4070000, Israel
| | - Ariel Etinger
- Department of Electrical and Electronics Engineering, Ariel University, Ariel 4070000, Israel
| | - Oz Livne
- Department of Electrical and Electronics Engineering, Ariel University, Ariel 4070000, Israel
| | - Yosef Pinhasi
- Department of Electrical and Electronics Engineering, Ariel University, Ariel 4070000, Israel
| | - Gary Gellerman
- Department of Chemical Sciences, Ariel University, Ariel 4070000, Israel
| | - Marina Nisnevitch
- Department of Chemical Engineering, Biotechnology and Materials, Ariel University, Ariel 4070000, Israel.
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Pérez-Laguna V, Gilaberte Y, Millán-Lou MI, Agut M, Nonell S, Rezusta A, Hamblin MR. A combination of photodynamic therapy and antimicrobial compounds to treat skin and mucosal infections: a systematic review. Photochem Photobiol Sci 2019; 18:1020-1029. [PMID: 30821303 PMCID: PMC6520109 DOI: 10.1039/c8pp00534f] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 02/08/2019] [Indexed: 11/21/2022]
Abstract
BACKGROUND Antimicrobial photodynamic therapy (aPDT) is a growing approach to treat skin and mucosal infections. Despite its effectiveness, investigators have explored whether aPDT can be further combined with antibiotics and antifungal drugs. OBJECTIVE To systematically assess the in vivo studies on the effectiveness of combinations of aPTD plus antimicrobials in the treatment of cutaneous and mucosal infections. MATERIALS AND METHODS Searches were performed in four databases (PubMed, EMBASE, Cochrane library databases, ClinicaTrials.gov) until July 2018. The pooled information was evaluated according to the PRISMA guidelines. RESULTS 11 full-text articles were finally evaluated and included. The best aPDT combinations involved 5-aminolevulinic acid or phenothiazinium dye-based aPDT. In general, the combination shows benefits such as reducing treatment times, lowering drug dosages, decreasing drug toxicity, improving patient compliance and diminishing the risk of developing resistance. The mechanism of action may be that first aPDT damages the microbial cell wall or membrane, which allows better penetration of the antimicrobial drug. LIMITATIONS The number of studies was low, the protocols used were heterogeneous, and there was a lack of clinical trials. CONCLUSIONS The additive or synergistic effect of aPDT combined with antimicrobials could be promising to manage skin and mucosal infections, helping to overcome the microbial drug resistance.
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Merigo E, Conti S, Ciociola T, Manfredi M, Vescovi P, Fornaini C. Antimicrobial Photodynamic Therapy Protocols on Streptococcus mutans with Different Combinations of Wavelengths and Photosensitizing Dyes. Bioengineering (Basel) 2019; 6:E42. [PMID: 31083438 PMCID: PMC6631272 DOI: 10.3390/bioengineering6020042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 12/22/2022] Open
Abstract
The aim of the study is to test the application of different laser wavelengths, with and without different photosensitizing dyes on different types of cultures. Laser irradiation was realized on Streptococcus mutans in both solid and liquid culture media in continuous mode at three different fluences (10, 20, and 30 J/cm2) with a red diode (650 nm) with toluidine blue dye, a blue-violet diode (405 nm) with curcumin dye, and a green diode (532 nm) with erythrosine dye. Without a photosensitizer, no growth inhibition was obtained with the red diode at any fluence value. Inhibition rates of 40.7% and 40.2% were obtained with the blue diode and green diode. The blue diode laser used with curcumin obtained results in terms of growth inhibition up to 99.26% at a fluence of 30 J/cm2. The red diode laser used with toluidine blue obtained results in terms of growth inhibition up to 100% at fluences of 20 and 30 J/cm2. The KTP (potassium-titanyl-phosphate) laser used with erythrosine was able to determine a complete growth inhibition (100%) at the different fluence values. The combination of a laser and its proper color may dramatically change the results in terms of bactericidal effect. It will be interesting to confirm these data by further in vivo studies.
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Affiliation(s)
- Elisabetta Merigo
- Laboratoire MICORALIS (MICrobiologie ORALe, Immunothérapie et Santé) EA7354, Université Nice Sophia Antipolis, UFR Odontologie, Avenue des Diables Bleus, 06000 Nice, France.
| | - Stefania Conti
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Tecla Ciociola
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Maddalena Manfredi
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Paolo Vescovi
- Department of Medicine and Surgery, University of Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Carlo Fornaini
- Laboratoire MICORALIS (MICrobiologie ORALe, Immunothérapie et Santé) EA7354, Université Nice Sophia Antipolis, UFR Odontologie, Avenue des Diables Bleus, 06000 Nice, France.
- GAEM, Group of Applied ElectroMagnetics, Department of Engineering and Architecture, University of Parma, Viale G. P. Usberti 181/A, 43124 Parma, Italy.
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Porphyrinoid photosensitizers mediated photodynamic inactivation against bacteria. Eur J Med Chem 2019; 175:72-106. [PMID: 31096157 DOI: 10.1016/j.ejmech.2019.04.057] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/27/2018] [Accepted: 04/19/2019] [Indexed: 12/28/2022]
Abstract
The multi-drug resistant bacteria have become a serious problem complicating therapies to such a degree that often the term "post-antibiotic era" is applied to describe the situation. The infections with methicillin-resistant S. aureus, vancomycin-resistant E. faecium, third generation cephalosporin-resistant E. coli, third generation cephalosporin-resistant K. pneumoniae and carbapenem-resistant P. aeruginosa have become commonplace. Thus, the new strategies of infection treatment have been searched for, and one of the approaches is based on photodynamic antimicrobial chemotherapy. Photodynamic protocols require the interaction of photosensitizer, molecular oxygen and light. The aim of this review is to provide a comprehensive overview of photodynamic antimicrobial chemotherapy by porphyrinoid photosensitizers. In the first part of the review information on the mechanism of photodynamic action and the mechanism of the bacteria resistance to the photodynamic technique were described. In the second one, it was described porphyrinoids photosensitizers like: porphyrins, chlorins and phthalocyanines useable in photodynamic bacteria inactivation.
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Tunçel A, Öztürk İ, Ince M, Ocakoglu K, Hoşgör-Limoncu M, Yurt F. Antimicrobial photodynamic therapy against Staphylococcus aureus using zinc phthalocyanine and zinc phthalocyanine-integrated TiO2 nanoparticles. J PORPHYR PHTHALOCYA 2019. [DOI: 10.1142/s1088424619500238] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Antibiotic resistance is an increasing healthcare problem worldwide. In the present study, the effects of antimicrobial photodynamic therapy (APDT) of ZnPc and ZnPc-integrated TiO2 nanoparticles (ZnPc-TiO[Formula: see text] were investigated against Staphylococcus aureus. A light emitting diode (LED) (630–700 nm, 17.4 mW/cm[Formula: see text] was used on S. aureus at different light doses (8 J/cm2 for 11 min, 16 J/cm2 for 22 min, 24 J/cm2 for 33 min) in the presence of the compounds under the minimum inhibitory concentration values. Both compounds showed similar phototoxicity toward S. aureus when high light doses (16 and 24 J/cm[Formula: see text] were applied. In addition, the success of APDT increased with an increasing light dose.
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Affiliation(s)
- Ayça Tunçel
- Institute of Nuclear Science, Department of Nuclear Applications, Ege University, Bornova, 35100, Izmir, Turkey
| | - İsmail Öztürk
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Izmir Katip Celebi University, Bornova, 35620, Izmir, Turkey
| | - Mine Ince
- Department of Energy Systems Engineering, Faculty of Technology, Tarsus University, TR33400, Tarsus, Turkey
| | - Kasim Ocakoglu
- Department of Energy Systems Engineering, Faculty of Technology, Tarsus University, TR33400, Tarsus, Turkey
| | - Mine Hoşgör-Limoncu
- Faculty of Pharmacy, Department of Pharmaceutical Microbiology, Ege University, Bornova, 35100, Izmir, Turkey
| | - Fatma Yurt
- Institute of Nuclear Science, Department of Nuclear Applications, Ege University, Bornova, 35100, Izmir, Turkey
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Merigo E, Chevalier M, Conti S, Ciociola T, Fornaini C, Manfredi M, Vescovi P, Doglio A. Antimicrobial effect on Candida albicans biofilm by application of different wavelengths and dyes and the synthetic killer decapeptide KP. Laser Ther 2019; 28:180-186. [PMID: 32009731 DOI: 10.5978/islsm.28_19-or-14] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 02/20/2019] [Indexed: 12/16/2022]
Abstract
The aim of this study was to test the application in vitro of different laser wavelengths at a low fluence in combination or not with proper photosensitizing dyes on Candida albicans biofilm with or without a synthetic killer decapeptide (KP). Candida albicans SC5314 was grown on Sabouraud dextrose agar plates at 37°C for 24 h. Cells were suspended in RPMI 1640 buffered with MOPS and cultured directly on the flat bottom of 96-wells plates. The previously described killer decapeptide KP was used in this study. Three different combinations of wavelengths and dyes were applied, laser irradiation has been performed at a fluence of 10 J/cm2. The effect on C. albicans biofilm was evaluated by the XTT assay. Microscopic observations were realized by fluorescence optic microscopy with calcofluor white and propidium iodide. Compared with control, no inhibition of C. albicans biofilm viability was obtained with application of red, blue and green lasers alone or with any combination of red diode laser, toluidine blue and KP. The combined application of blue diode laser with curcumin and/or KP showed always a very significant inhibition, as curcumin alone and the combination of curcumin and KP did, while combination of blue diode laser and KP gave a less significant inhibition, the same obtained with KP alone. The combined application of green diode laser with erythrosine and/or KP showed always a very significant inhibition, as the combination of erythrosine and KP did, but no difference was observed with respect to the treatment with erythrosine alone. Again, combination of green diode laser and KP gave a significant inhibition, although paradoxically lower than the one obtained with KP alone. Treatment with KP alone, while reducing biofilm viability did not cause C. albicans death in the adopted experimental conditions. On the contrary, combined treatment with blue laser, curcumin and KP, as well as green laser, erythrosine and KP led to death most C. albicans cells. The combination of laser light at a fluence of 10 J/cm2 and the appropriate photosensitizing agent, together with the use of KP, proved to exert differential effects on C. albicans biofilm.
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Affiliation(s)
- Elisabetta Merigo
- Department of Medicine and Surgery, University of Parma, Italy.,Micoralis Laboratory, Faculty of Dentistry, University of Nice Sophia Antipolis, Nice, France
| | - Marlène Chevalier
- Micoralis Laboratory, Faculty of Dentistry, University of Nice Sophia Antipolis, Nice, France
| | - Stefania Conti
- Department of Medicine and Surgery, University of Parma, Italy
| | - Tecla Ciociola
- Department of Medicine and Surgery, University of Parma, Italy
| | - Carlo Fornaini
- Micoralis Laboratory, Faculty of Dentistry, University of Nice Sophia Antipolis, Nice, France.,Group of Applied ElectroMagnetics, Department of Engineering and Architecture, University of Parma, Italy
| | | | - Paolo Vescovi
- Department of Medicine and Surgery, University of Parma, Italy
| | - Alain Doglio
- Micoralis Laboratory, Faculty of Dentistry, University of Nice Sophia Antipolis, Nice, France
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Ni N, Zhong Y, Chen S, Xia XJ, Liu ZH. In vitro aminolevulinic acid mediated-antimicrobial photodynamic therapy inactivates growth of Prototheca wickerhamii but does not change antibacterial and antifungal drug susceptibiltity profile. Photodiagnosis Photodyn Ther 2018; 25:280-284. [PMID: 30586618 DOI: 10.1016/j.pdpdt.2018.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 11/23/2018] [Accepted: 12/21/2018] [Indexed: 01/12/2023]
Abstract
BACKGROUND Antimicrobial photodynamic therapy(aPDT) has been used to treat localized cutaneous fungal infections that have an enhanced antifungal susceptibility profile. The aim of this study was to evaluate the effect of ALA aPDT on both the growth and the antimicrobial and antifungal susceptibility of Prototheca wickerhamii. METHODS Six isolates of P. wickerhamii were used in the present study. The inocula in sterile 6-well microtiter plates were irradiated with narrow band LED (633 ± 10 nm) at the light intensity of 100 mW/cm2 and at a distance of 1 cm for 900 s. The ALA was tested at concentrations of 1, 5, and 10 mmol/l, while 10-μl aliquots of suspensions from each group were inoculated on Sabouraud dextrose agar to test the photoinactivation. Antibiotic susceptibility was investigated by the disc-diffusion method. RESULTS Our study shows ALA aPDT induced 46% ± 24.23% reduction of the growth of all tested P. wickerhamii strains in T1 group. ALA aPDT induced 50.39% ± 19.88% reduction of the growth of all tested P. wickerhamii strains in T2 group. ALA aPDT induced 52.68 ± 20.22% reduction of the growth of all tested P. wickerhamii strains inT3 group. Single ALA aPDT induced 32.97% ± 1.6% growith reduction of three tested strains(O23d, O23e and 62,207), while repeated ALA aPDT induced 51.65 ± 2.91% reduction of the growth(P value = 0.000). There were no significant difference of the inhibitory zone diameter of both antibacterial and antifungal agents before and after ALA aPDT. CONCLUSIONS ALA aPDT can inactivate the growth of P. wickerhamii, and repeated aPDT has more photoinactivation of P. wickerhamii. ALA aPDT does not change antibacterial agents and antifungal drugs susceptibility profile of P. wickerhamii.
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Affiliation(s)
- Na Ni
- Department of Laboratory, Affiliated Third Hospital of Hangzhou, Anhui Medical University, West Lake Rd 38, Hangzhou, China
| | - Yan Zhong
- Department of Dermatology, Affiliated Third Hospital of Hangzhou, Anhui Medical University, West Lake Rd 38, Hangzhou, China
| | - Shi Chen
- Department of Laboratory, Affiliated Third Hospital of Hangzhou, Anhui Medical University, West Lake Rd 38, Hangzhou, China
| | - Xiu-Jiao Xia
- Department of Dermatology, Affiliated Third Hospital of Hangzhou, Anhui Medical University, West Lake Rd 38, Hangzhou, China
| | - Ze-Hu Liu
- Department of Dermatology, Affiliated Third Hospital of Hangzhou, Anhui Medical University, West Lake Rd 38, Hangzhou, China.
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33
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Belosludov RV, Nevonen D, Rhoda HM, Sabin JR, Nemykin VN. Simultaneous Prediction of the Energies of Qx and Qy Bands and Intramolecular Charge-Transfer Transitions in Benzoannulated and Non-Peripherally Substituted Metal-Free Phthalocyanines and Their Analogues: No Standard TDDFT Silver Bullet Yet. J Phys Chem A 2018; 123:132-152. [DOI: 10.1021/acs.jpca.8b07647] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Rodion V. Belosludov
- Institute for Materials Research, Tohoku University, Katahira 2-1-1,
Aoba-ku Sendai 980-8577, Japan
| | - Dustin Nevonen
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Hannah M. Rhoda
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Jared R. Sabin
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
| | - Victor N. Nemykin
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
- Department of Chemistry & Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, United States
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Müller A, Preuß A, Bornhütter T, Thomas I, Prager A, Schulze A, Röder B. Electron beam functionalized photodynamic polyethersulfone membranes - photophysical characterization and antimicrobial activity. Photochem Photobiol Sci 2018; 17:1346-1354. [PMID: 30141813 DOI: 10.1039/c8pp00254a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Polymer membranes are powerful filtration tools in medicine and water treatment. Their efficiency and operational lifetime is limited by biofouling caused by microorganisms. This study describes the development of photodynamical active antimicrobial polymer membranes in a one-pot functionalization step using a well-known photosensitizer (PS). Commercially available polyethersulfone (PES) membranes for microfiltration were doped with the polycationic PS TMPyP using electron beam irradiation. These membranes were characterized in terms of binding stability and quantification of the PS and membrane morphology. Furthermore, the photodynamic ability was verified by time resolved singlet oxygen luminescence scans and successfully tested against the Gram-negative bacterium E. coli under low dose white light illumination resulting in the reduction in cell survival of 6 log10 units. Finally, in preliminarily experiments the photodynamic action against the Gram-positive bacteria M. luteus and the Gram-negative P. fluorescence and the mold C. cladosporioides was demonstrated. These promising results show the high photodynamic potential of electron beam functionalization of PES membranes with TMPyP. It preserves the photodynamic abilities of the immobilized PS resulting in efficient photodynamic inactivation of bacteria and mold on the membrane surface. The uprising worldwide spread of antibiotic resistant bacteria makes the development of new antibacterial strategies an inevitable challenge. The photodynamic inactivation of bacteria and its adaptation for antimicrobial surfaces, e.g. filtration membranes for water treatment, displays many advantages in terms of a wide application range, low mutagenic potential and environmental compatibility.
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do Nascimento Volpe RAF, Navasconi TR, Dos Reis VN, Hioka N, Becker TCA, Lonardoni MVC, Aristides SMA, Silveira TGV. Photodynamic Therapy for the Treatment of American Tegumentary Leishmaniasis: Evaluation of Therapies Association in Experimentally Infected Mice With Leishmania (Leishmania) amazonensis. J Lasers Med Sci 2018; 9:274-282. [PMID: 31119023 DOI: 10.15171/jlms.2018.49] [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: 11/09/2022]
Abstract
Introduction: American tegumentary leishmaniasis (ATL) is a zoonotic disease caused by protozoan parasites of the genus Leishmania that affects the skin and mucous membrane. Currently, the available drugs for the treatment are injectable, with side effects, long-term treatment regimen and there is the possibility of drug resistance. Thus, alternative therapies have been tested, including photodynamic therapy (PDT). We evaluated the efficacy of PDT on its own and associated with the prescribed ATL treatment. Methods: BALB/c mice were infected with Leishmania (Leishmania) amazonensis and divided into 6 groups: Gluc+PDT, treated with Glucantime® and photodynamic therapy (PDT) with methylene blue (MB)/red LED (light-emitting diode); Gluc, treated with Glucantime®; PDT, treated with PDT with MB/red LED; Ampho+PDT, treated with amphotericin and PDT with MB/red LED; Ampho, treated with amphotericin; and control, which were infected but not treated. Two treatment cycles were performed. After 165 days of infection, the parasite load was determined. Results: Statistical differences were not found (P>0.05) between measures of volume and thickness of the infected footpads in the treated groups when compared with the control group. However, there was a significant reduction (P<0.05) in the parasitic load of the popliteal lymph nodes of the Gluc+PDT, Gluc, PDT and Ampho groups when compared to the control group. In the histological analysis of the infected footpads, the Gluc+PDT group presented a smaller amount of amastigote nests and lower intensity of the mononuclear infiltrate when compared to the Gluc and PDT groups. Conclusion: The results showed that although there is no significant difference in the evaluations of footpad size (thickness and volume), there is a downward measurement tendency in the Gluc+PDT group, as it can be observed by volume data and corroborated by parasite negative load.
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Affiliation(s)
| | - Taisa Rocha Navasconi
- Graduate Program in Health Sciences, Universidade Estadual de Maringá, Maringá, Brazil
| | - Vanessa Nesi Dos Reis
- Graduate Program in Health Sciences, Universidade Estadual de Maringá, Maringá, Brazil
| | - Noboru Hioka
- Department of Chemistry, Universidade Estadual de Maringá, Maringá, Brazil
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Photodynamic therapy as an alternative to antibiotic therapy for the treatment of infected leg ulcers. Photodiagnosis Photodyn Ther 2018; 23:132-143. [DOI: 10.1016/j.pdpdt.2018.05.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 03/25/2018] [Accepted: 05/02/2018] [Indexed: 12/29/2022]
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Memar MY, Ghotaslou R, Samiei M, Adibkia K. Antimicrobial use of reactive oxygen therapy: current insights. Infect Drug Resist 2018; 11:567-576. [PMID: 29731645 PMCID: PMC5926076 DOI: 10.2147/idr.s142397] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Infections caused by drug-resistant pathogens are a global public health problem. The introduction of a new antimicrobial strategy is an unavoidable option for the management of drug-resistant pathogens. Induction of high levels of reactive oxygen species (ROS) by several procedures has been extensively studied for the treatment of infections. In this article, the general aspects of ROS production and the common procedures that exert their antimicrobial effects due to ROS formation are reviewed. ROS generation is the antimicrobial mechanism of nanoparticles, hyperbaric oxygen therapy, medical honey, and photodynamic therapy. In addition, it is an alternative bactericidal mechanism of clinically traditional antibiotics. The development of ROS delivery methods with a desirable selectivity for pathogens without side effects for the host tissue may be a promising approach for the treatment of infections, especially those caused by drug-resistant organisms.
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Affiliation(s)
| | - Reza Ghotaslou
- Department of Microbiology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Samiei
- Faculity of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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Lopera A, Montoya A, Vélez I, Robledo S, Garcia C. Synthesis of calcium phosphate nanostructures by combustion in solution as a potential encapsulant system of drugs with photodynamic properties for the treatment of cutaneous leishmaniasis. Photodiagnosis Photodyn Ther 2018; 21:138-146. [DOI: 10.1016/j.pdpdt.2017.11.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 02/05/2023]
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39
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Pérez-Laguna V, García-Luque I, Ballesta S, Pérez-Artiaga L, Lampaya-Pérez V, Samper S, Soria-Lozano P, Rezusta A, Gilaberte Y. Antimicrobial photodynamic activity of Rose Bengal, alone or in combination with Gentamicin, against planktonic and biofilm Staphylococcus aureus. Photodiagnosis Photodyn Ther 2017; 21:211-216. [PMID: 29196246 DOI: 10.1016/j.pdpdt.2017.11.012] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/16/2017] [Accepted: 11/27/2017] [Indexed: 12/12/2022]
Abstract
Antimicrobial photodynamic therapy (aPDT) could constitute an alternative therapy to antibiotics especially against superficial infections caused by bacteria involved in multidrug resistance processes. The aim of this study is to compare the efficacy of aPDT using the photosensitizer rose bengal (RB), combined or uncombined with gentamicin (GN), against Staphylococcus aureus. Different concentrations of RB (ranging from 0.03 to 64 μg/ml) were added to S. aureus in water suspensions or forming biofilms in the absence or presence of GN (1-40 μg/ml) and the samples were irradiated (18 or 37 J/cm2). The number of viable bacteria was quantified by counting colony-forming units. RB-aPDT shows significant photoactivity. The combination of GN and RB-aPDT exerts a synergistic bactericidal effect against planktonic S. aureus. On the other hand, a synergistic effect is observed only when the maximum concentration tested of RB and GN was used in biofilm. According to these result the use of RB-aPDT alone or in combination with GN could be implemented against S. aureus.
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Affiliation(s)
- Vanesa Pérez-Laguna
- IIS Aragón, Zaragoza, Spain; Department of Microbiology, Hospital Universitario Miguel Servet, Zaragoza, Spain.
| | - Isabel García-Luque
- Department of Microbiology, School of Medicine, University of Sevilla, Sevilla, Spain
| | - Sofía Ballesta
- Department of Microbiology, School of Medicine, University of Sevilla, Sevilla, Spain
| | - Luna Pérez-Artiaga
- Department of Microbiology, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | | | - Sofía Samper
- IIS Aragón, Zaragoza, Spain; Instituto Aragonés de Ciencias de la Salud, Hospital Universitario Miguel Servet, Zaragoza, Spain; CIBER Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Pilar Soria-Lozano
- Department of Microbiology, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Antonio Rezusta
- IIS Aragón, Zaragoza, Spain; Department of Microbiology, Hospital Universitario Miguel Servet, Zaragoza, Spain; Department of Microbiology, Preventive Medicine and Public Health, University of Zaragoza, Zaragoza, Spain
| | - Yolanda Gilaberte
- IIS Aragón, Zaragoza, Spain; Department of Dermatology, Hospital Universitario Miguel Servet, Zaragoza, Spain
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40
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Müller A, Preuß A, Röder B. Photodynamic inactivation of Escherichia coli - Correlation of singlet oxygen kinetics and phototoxicity. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 178:219-227. [PMID: 29156350 DOI: 10.1016/j.jphotobiol.2017.11.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/09/2017] [Accepted: 11/12/2017] [Indexed: 01/22/2023]
Abstract
Photodynamic inactivation (PDI) of bacteria may play a major role in facing the challenge of the ever expanding antibiotic resistances. Here we report about the direct correlation of singlet oxygen luminescence kinetics and phototoxicity in E. coli cell suspension under PDI using the widely applied cationic photosensitizer TMPyP. Through direct access to the microenvironment, the time resolved investigation of singlet oxygen luminescence plays a key role in understanding the photosensitization mechanism and inactivation pathway. Using the homemade set-up for highly sensitive time resolved singlet oxygen luminescence detection, we show that the cationic TMPyP is localized predominantly outside the bacterial cells but in their immediate vicinity prior to photodynamic inactivation. Throughout following light exposure, a clear change in singlet oxygen kinetics indicates a redistribution of photosensitizer molecules to at least one additional microenvironment. We found the signal kinetics mirrored in cell viability measurements of equally treated samples from same overnight cultures conducted in parallel: A significant drop in cell viability of the illuminated samples and stationary viability of dark controls. Thus, for the system investigated in this work - a Gram-negative model bacteria and a well-known PS for its PDI - singlet oxygen kinetics correlates with phototoxicity. This finding suggests that it is well possible to evaluate PDI efficiency directly via time resolved singlet oxygen detection.
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Affiliation(s)
- Alexander Müller
- Department of Physics, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany
| | - Annegret Preuß
- Department of Physics, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany
| | - Beate Röder
- Department of Physics, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489 Berlin, Germany.
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de Melo NB, dos Santos LFM, de Castro MS, Souza RLM, Marques MJ, Castro AP, de Castro AT, de Carli ML, Hanemann JAC, Silva MS, Moraes GDOI, Beijo LA, Brigagão MRPL, Sperandio FF. Photodynamic therapy for Schistosoma mansoni : Promising outcomes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 176:157-164. [DOI: 10.1016/j.jphotobiol.2017.09.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 08/08/2017] [Accepted: 09/18/2017] [Indexed: 11/26/2022]
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42
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Pérez-Laguna V, Pérez-Artiaga L, Lampaya-Pérez V, López SC, García-Luque I, Revillo MJ, Nonell S, Gilaberte Y, Rezusta A. Comparative effect of photodynamic therapy on separated or mixed cultures of Streptococcus mutans and Streptococcus sanguinis. Photodiagnosis Photodyn Ther 2017; 19:98-102. [DOI: 10.1016/j.pdpdt.2017.05.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/28/2017] [Accepted: 05/20/2017] [Indexed: 12/20/2022]
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43
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Wahy AHE, Ismail AR, Kana MTA, Negm NA. Synthesis and characterization of novel bis-(4-methylcoumarin) derivatives as photosensitizers in antimicrobial photodynamic therapy. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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44
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Ribeiro CM, Caixeta CA, de Carli ML, Sperandio FF, de Sá Magalhães EM, Costa Pereira AA, Costa Hanemann JA. Photodynamic inactivation of oral paracoccidioidomycosis affecting woman with systemic lupus erythematosus: An unusual case report. Photodiagnosis Photodyn Ther 2017; 17:160-163. [DOI: 10.1016/j.pdpdt.2016.12.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 12/14/2016] [Accepted: 12/19/2016] [Indexed: 01/12/2023]
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45
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Merigo E, Conti S, Ciociola T, Fornaini C, Polonelli L, Lagori G, Manfredi M, Vescovi P. Effect of different wavelengths and dyes on Candida albicans: In vivo study using Galleria mellonella as an experimental model. Photodiagnosis Photodyn Ther 2017; 18:34-38. [PMID: 28130177 DOI: 10.1016/j.pdpdt.2017.01.181] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 01/03/2017] [Accepted: 01/22/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND Studies on photodynamic inactivation against microorganisms had a great development in recent years. The aim of this work was to test the application of different laser wavelengths with or without different photosensitizing dyes on Candida albicans cells in vitro and in photodynamic therapy protocols in vivo in larvae of Galleria mellonella. METHODS Laser application was realized on C. albicans cells suspended in saline solution or cultured on solid medium for the in vitro study, and in a model of G. mellonella candidal infection for the in vivo study. Three wavelengths (650, 405, and 532nm) were used in continuous mode with different values of applied fluences: 10, 20 and 30J/cm2 for the in vitro study and 10J/cm2 for the in vivo study, without and with photosensitizing dyes. RESULTS No growth inhibition was obtained on yeast cells in saline solution without photosensitizers. The maximum inhibition of growth (100%) was obtained with 405nm diode laser and curcumin at any used fluence. No growth inhibition was observed for yeast cells cultured on solid medium after laser application without dyes. An inhibition was observed after laser application when curcumin and erythrosine were added to the medium. The survival curves of G. mellonella larvae infected with C. albicans with or without the different dyes and after laser application showed a statistically significant difference (p<0.001) in comparison with the proper control groups. CONCLUSIONS These results show the efficacy of photodynamic inactivation exploiting a suitable combination of light and dyes against C. albicans and the potential of photodynamic therapy for the treatment of candidal infections.
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Affiliation(s)
- Elisabetta Merigo
- Unit of Oral Pathology, Medicine and Laser Surgery, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy; MicOralIS Laboratory EA7354 - UFR of Odontology, University of Nice-Sophia Antipolis, Nice, France.
| | - Stefania Conti
- Unit of Microbiology and Virology, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy
| | - Tecla Ciociola
- Unit of Microbiology and Virology, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy
| | - Carlo Fornaini
- Unit of Oral Pathology, Medicine and Laser Surgery, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy; MicOralIS Laboratory EA7354 - UFR of Odontology, University of Nice-Sophia Antipolis, Nice, France
| | - Luciano Polonelli
- Unit of Microbiology and Virology, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy
| | - Giuseppe Lagori
- Unit of Oral Pathology, Medicine and Laser Surgery, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy; MicOralIS Laboratory EA7354 - UFR of Odontology, University of Nice-Sophia Antipolis, Nice, France
| | - Maddalena Manfredi
- Unit of Oral Pathology, Medicine and Laser Surgery, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy
| | - Paolo Vescovi
- Unit of Oral Pathology, Medicine and Laser Surgery, Department of Biomedical, Biotechnological and Translational Sciences (S.Bi.Bi.T.), University of Parma, Parma, Italy
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Abstract
Photodynamic therapy (PDT), also known as photoradiation therapy, phototherapy, or photochemo-therapy, involves the use of a photoactive dye (photosensitizer) that is activated by exposure to light of a specific wavelength in the presence of oxygen. The transfer of energy from the activated photosensitizer to available oxygen results in the formation of toxic oxygen species, such as singlet oxygen and free radicals. These very reactive chemical species can damage proteins, lipids, nucleic acids, and other cellular components. Applications of PDT in dentistry are growing rapidly: the treatment of oral cancer, bacterial and fungal infection therapies, and the photodynamic diagnosis (PDD) of the malignant transformation of oral lesions. PDT has shown potential in the treatment of oral leukoplakia, oral lichen planus, and head and neck cancer. Photodynamic antimicrobial chemotherapy (PACT) has been efficacious in the treatment of bacterial, fungal, parasitic, and viral infections. The absence of genotoxic and mutagenic effects of PDT is an important factor for long-term safety during treatment. PDT also represents a novel therapeutic approach in the management of oral biofilms. Disruption of plaque structure has important consequences for homeostasis within the biofilm. Studies are now leading toward selective photosensitizers, since killing the entire flora leaves patients open to opportunistic infections. Dentists deal with oral infections on a regular basis. The oral cavity is especially suitable for PACT, because it is relatively accessible to illumination.
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Affiliation(s)
- K Konopka
- Department of Microbiology, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, CA, USA.
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47
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Kubheka G, Uddin I, Amuhaya E, Mack J, Nyokong T. Synthesis and photophysicochemical properties of BODIPY dye functionalized gold nanorods for use in antimicrobial photodynamic therapy. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s108842461650070x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A series of boron dipyrromethene (BODIPY) dyes with properties that are ideal for a good photosensitizer have been prepared. Functionalization with bromine atoms and attachment to gold nanoparticles through a meso-aniline group results in high singlet oxygen quantum yields and low fluorescent quantum yields. Molecular modelling was used to analyze trends in the MO energies of various brominated aniline BODIPY dyes.
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Affiliation(s)
- Gugu Kubheka
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Imran Uddin
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Edith Amuhaya
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - John Mack
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
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48
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de Castro MS, Ribeiro NV, de Carli ML, Pereira AAC, Sperandio FF, Hanemann JAC. Photodynamically dealing with bisphosphonate-related osteonecrosis of the jaw: Successful case reports. Photodiagnosis Photodyn Ther 2016; 16:72-75. [DOI: 10.1016/j.pdpdt.2016.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/05/2016] [Accepted: 08/26/2016] [Indexed: 11/26/2022]
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49
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Costley D, Nesbitt H, Ternan N, Dooley J, Huang YY, Hamblin MR, McHale AP, Callan JF. Sonodynamic inactivation of Gram-positive and Gram-negative bacteria using a Rose Bengal-antimicrobial peptide conjugate. Int J Antimicrob Agents 2016; 49:31-36. [PMID: 27908581 DOI: 10.1016/j.ijantimicag.2016.09.034] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/01/2016] [Accepted: 09/17/2016] [Indexed: 12/31/2022]
Abstract
Combating antimicrobial resistance is one of the most serious public health challenges facing society today. The development of new antibiotics or alternative techniques that can help combat antimicrobial resistance is being prioritised by many governments and stakeholders across the globe. Antimicrobial photodynamic therapy is one such technique that has received considerable attention but is limited by the inability of light to penetrate through human tissue, reducing its effectiveness when used to treat deep-seated infections. The related technique sonodynamic therapy (SDT) has the potential to overcome this limitation given the ability of low-intensity ultrasound to penetrate human tissue. In this study, a Rose Bengal-antimicrobial peptide conjugate was prepared for use in antimicrobial SDT (ASDT). When Staphylococcus aureus and Pseudomonas aeruginosa planktonic cultures were treated with the conjugate and subsequently exposed to ultrasound, 5 log and 7 log reductions, respectively, in bacterial numbers were observed. The conjugate also displayed improved uptake by bacterial cells compared with a mammalian cell line (P ≤ 0.01), whilst pre-treatment of a P. aeruginosa biofilm with ultrasound resulted in a 2.6-fold improvement in sensitiser diffusion (P ≤ 0.01). A preliminary in vivo experiment involving ASDT treatment of P. aeruginosa-infected wounds in mice demonstrated that ultrasound irradiation of conjugate-treated wounds affects a substantial reduction in bacterial burden. Combined, the results obtained from this study highlight ASDT as a targeted broad-spectrum novel modality with potential for the treatment of deep-seated bacterial infections.
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Affiliation(s)
- David Costley
- Biomedical Sciences Research Institute, University of Ulster, Coleraine BT52 1SA, UK
| | - Heather Nesbitt
- Biomedical Sciences Research Institute, University of Ulster, Coleraine BT52 1SA, UK
| | - Nigel Ternan
- Biomedical Sciences Research Institute, University of Ulster, Coleraine BT52 1SA, UK
| | - James Dooley
- Biomedical Sciences Research Institute, University of Ulster, Coleraine BT52 1SA, UK
| | - Ying-Ying Huang
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
| | - Anthony P McHale
- Biomedical Sciences Research Institute, University of Ulster, Coleraine BT52 1SA, UK
| | - John F Callan
- Biomedical Sciences Research Institute, University of Ulster, Coleraine BT52 1SA, UK.
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50
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Polyhydric Corrole and Its Gallium Complex: Synthesis, DNA-binding Properties and Photodynamic Activities. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600482] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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