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Xie Y, Li J, Liu C, Zhang X, Zhang X, Wang Q, Zhang L, Yang S. Antimicrobial efficacy of aloe-emodin mediated photodynamic therapy against antibiotic-resistant Pseudomonas aeruginosa in vitro. Biochem Biophys Res Commun 2024; 690:149285. [PMID: 37995454 DOI: 10.1016/j.bbrc.2023.149285] [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: 11/08/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023]
Abstract
Multidrug-resistant Pseudomonas aeruginosa is a common pathogen that causes topical infections following burn injuries. Antimicrobial photodynamic therapy (aPDT) has emerged as a promising approach for treating antibiotic-resistant bacterial infections. The objective of this study was to evaluate the aPDT efficacy of aloe-emodin (AE), which is a photosensitizer extracted from traditional Chinese herbs, on antibiotic-sensitive and antibiotic-resistant P. aeruginosa in vitro. In this study, we confirmed the effectiveness of AE-mediated aPDT against both standard and MDR P. aeruginosa, explored the effects of irradiation time and AE concentration on bacterial survival in AE-mediated aPDT, and observed the structural damage of P. aeruginosa by using transmission electron microscope. Our results showed that neither AE nor light irradiation alone caused cytotoxic effects on P. aeruginosa. However, AE-mediated aPDT effectively inactivated both antibiotic-sensitive and antibiotic-resistant P. aeruginosa. The transmission electron microscope investigation showed that aPDT mediated by AE primarily caused damage to the cytoplasm and cell membrane. Our findings suggest that AE is a photosensitizer in the aPDT of MDR P. aeruginosa-caused topical infections following burn injuries. Future investigations will concentrate on the safety and efficacy of AE-mediated aPDT in animal models and clinical trials.
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Affiliation(s)
- Yun Xie
- Department of Clinical Laboratory, Northwest Women's and Children's Hospital, Xi'an, China
| | - Jiao Li
- Department of Clinical Laboratory, Northwest Women's and Children's Hospital, Xi'an, China
| | - Chengcheng Liu
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xiaofei Zhang
- Department of Clinical Laboratory, Northwest Women's and Children's Hospital, Xi'an, China
| | - Xinran Zhang
- Department of Clinical Laboratory, Northwest Women's and Children's Hospital, Xi'an, China
| | - Qi Wang
- Department of Clinical Laboratory, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Lixia Zhang
- Department of Clinical Laboratory, Shaanxi Provincial People's Hospital, Xi'an, China.
| | - Shaoqing Yang
- Department of Oral Biology, School of Stomatology, The Fourth Military Medical University, Xi'an, China.
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Mathur A, Parihar AS, Modi S, Kalra A. Photodynamic therapy for ESKAPE pathogens: An emerging approach to combat antimicrobial resistance (AMR). Microb Pathog 2023; 183:106307. [PMID: 37604213 DOI: 10.1016/j.micpath.2023.106307] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/09/2023] [Accepted: 08/14/2023] [Indexed: 08/23/2023]
Abstract
The increase in antimicrobial resistance, particularly in ESKAPE pathogens, has resulted in the dire need for new therapeutic approaches. ESKAPE is an acronym for a group of bacteria that are responsible for a majority of nosocomial and community acquired infections. The acronym stands for Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species. These pathogens are known for their ability to develop resistance to multiple antibiotics, making them difficult to treat thus posing a significant threat to public health. In light of the alarming consequences of antimicrobial resistance, it has been estimated that, in the absence of a substantial increase in the rate of development of new effective drugs, the number of casualties related to these infections will increase from about 700,000 in 2016 up to nearly 10,000,000 in 2050 [1]. One potential strategy to treat these pathogens is photodynamic therapy (PDT). In the early 20th century, Oscar Raab observed the phototoxicity of acridine red against Paramecium caudatum, while Tappenier and Jesionek demonstrated the photodynamic effects of eosin for treating cutaneous diseases. These discoveries laid the foundation for Photodynamic Therapy (PDT), which utilizes a non-toxic photosensitizer (PS) followed by targeted light irradiation for treatment [2]. PDT involves the use of a photosensitizer, a light source, and oxygen to eliminate highly active infectious pathogens such as bacteria, viruses, and fungi. PDT is known to possess several advantages including localized treatment and fewer side effects. Various photosensitizers and light sources have been assessed in different strains, showing promising results suggesting PDT to be a promising potential treatment option. PDT utilizes PS compounds with suitable light absorption that showcase effective results against the pathogens in vitro and in vivo, including BODIPY derivatives, Methylene Blue, and other dyes like porphyrin derivatives, phthalocyanines, indole derivatives, Photophrin, etc., inhibiting the growth of infections, for both in planktonic cells and in biofilms. Combination of PDT with other therapies like efflux pump inhibitors or quorum sensing inhibitors has also proven to be efficacious. However, this domain further needs to be assessed before it reaches the society.
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Affiliation(s)
| | | | - Simran Modi
- Dr. B. Lal Institute of Biotechnology, Jaipur, India
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3
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Abo-Neima SE, El-Sheekh MM, Al-Zaban MI, El-Sayed AIM. Antibacterial and anti-corona virus (229E) activity of Nigella sativa oil combined with photodynamic therapy based on methylene blue in wound infection: in vitro and in vivo study. BMC Microbiol 2023; 23:274. [PMID: 37773101 PMCID: PMC10540405 DOI: 10.1186/s12866-023-03018-1] [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: 04/26/2023] [Accepted: 09/12/2023] [Indexed: 09/30/2023] Open
Abstract
Microbial skin infections, antibiotic resistance, and poor wound healing are major problems, and new treatments are needed. Our study targeted solving this problem with Nigella sativa (NS) oil and photodynamic therapy based on methylene blue (MB-PDT). Antibacterial activity and minimum inhibitory concentration (MIC) were determined via agar well diffusion assay and broth microdilution, respectively. Transmission electron microscopy (TEM) proved deformations in Staphylococcus aureus ATCC 6538. Gas chromatography-mass spectrometry identified useful compounds that were suggested to be responsible for the potency of the oil. NS oil was tested as an antivirus against low pathogenic coronavirus (229E). Therapies examined, MB-PDT, NS, and MB-PDT + NS oil, to accelerate wound healing. The antibacterial efficacy against S. aureus was promising, with a MIC of 12.5% and TEM showing injured cells treated with NS oil. This oil inhibited 229E virus up to 42.85% and 32.14%. All tested therapies were successful in accelerating wound healing. The most successful was combined therapy (MB-PDT + NS oil), with a faster healing time. The combined therapy (MB-PDT + NS oil) reduced bacterial counts, which may be a key factor in accelerating wound healing. Skin wound histology was investigated; blood hematology and biochemical analysis did not change significantly after the safe combination treatment. A combination treatment could facilitate healing in a simple and inexpensive way in the future. Based on the results of the in vitro and in vivo studies, it was determined that NS oil had antibacterial and anti-corona virus activity when used in conjunction with photodynamic treatment based on methylene blue to treat wound infections.
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Affiliation(s)
- Sahar E Abo-Neima
- Physics Department, Faculty of Science, Damanhour University, Damanhour, El-Beheira, Egypt
| | - Mostafa M El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Mayasar I Al-Zaban
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O.Box 84428, 11671, Riyadh, Saudi Arabia
| | - Abeer I M El-Sayed
- Botany and Microbiology Department, Faculty of Science, Damanhour University, Damanhour, El-Beheira, Egypt
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Leanse LG, Marasini S, dos Anjos C, Dai T. Antimicrobial Resistance: Is There a 'Light' at the End of the Tunnel? Antibiotics (Basel) 2023; 12:1437. [PMID: 37760734 PMCID: PMC10525303 DOI: 10.3390/antibiotics12091437] [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: 07/06/2023] [Revised: 07/30/2023] [Accepted: 08/08/2023] [Indexed: 09/29/2023] Open
Abstract
In recent years, with the increases in microorganisms that express a multitude of antimicrobial resistance (AMR) mechanisms, the threat of antimicrobial resistance in the global population has reached critical levels. The introduction of the COVID-19 pandemic has further contributed to the influx of infections caused by multidrug-resistant organisms (MDROs), which has placed significant pressure on healthcare systems. For over a century, the potential for light-based approaches targeted at combatting both cancer and infectious diseases has been proposed. They offer effective killing of microbial pathogens, regardless of AMR status, and have not typically been associated with high propensities of resistance development. To that end, the goal of this review is to describe the different mechanisms that drive AMR, including intrinsic, phenotypic, and acquired resistance mechanisms. Additionally, the different light-based approaches, including antimicrobial photodynamic therapy (aPDT), antimicrobial blue light (aBL), and ultraviolet (UV) light, will be discussed as potential alternatives or adjunct therapies with conventional antimicrobials. Lastly, we will evaluate the feasibility and requirements associated with integration of light-based approaches into the clinical pipeline.
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Affiliation(s)
- Leon G. Leanse
- Health and Sports Sciences Hub, University of Gibraltar, Europa Point Campus, Gibraltar GX11 1AA, Gibraltar
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; (C.d.A.); (T.D.)
| | - Sanjay Marasini
- New Zealand National Eye Centre, Department of Ophthalmology, The University of Auckland, Auckland 1142, New Zealand;
| | - Carolina dos Anjos
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; (C.d.A.); (T.D.)
| | - Tianhong Dai
- Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; (C.d.A.); (T.D.)
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5
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Jiang Y, Trotsyuk AA, Niu S, Henn D, Chen K, Shih CC, Larson MR, Mermin-Bunnell AM, Mittal S, Lai JC, Saberi A, Beard E, Jing S, Zhong D, Steele SR, Sun K, Jain T, Zhao E, Neimeth CR, Viana WG, Tang J, Sivaraj D, Padmanabhan J, Rodrigues M, Perrault DP, Chattopadhyay A, Maan ZN, Leeolou MC, Bonham CA, Kwon SH, Kussie HC, Fischer KS, Gurusankar G, Liang K, Zhang K, Nag R, Snyder MP, Januszyk M, Gurtner GC, Bao Z. Wireless, closed-loop, smart bandage with integrated sensors and stimulators for advanced wound care and accelerated healing. Nat Biotechnol 2023; 41:652-662. [PMID: 36424488 DOI: 10.1038/s41587-022-01528-3] [Citation(s) in RCA: 75] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 09/23/2022] [Indexed: 11/26/2022]
Abstract
'Smart' bandages based on multimodal wearable devices could enable real-time physiological monitoring and active intervention to promote healing of chronic wounds. However, there has been limited development in incorporation of both sensors and stimulators for the current smart bandage technologies. Additionally, while adhesive electrodes are essential for robust signal transduction, detachment of existing adhesive dressings can lead to secondary damage to delicate wound tissues without switchable adhesion. Here we overcome these issues by developing a flexible bioelectronic system consisting of wirelessly powered, closed-loop sensing and stimulation circuits with skin-interfacing hydrogel electrodes capable of on-demand adhesion and detachment. In mice, we demonstrate that our wound care system can continuously monitor skin impedance and temperature and deliver electrical stimulation in response to the wound environment. Across preclinical wound models, the treatment group healed ~25% more rapidly and with ~50% enhancement in dermal remodeling compared with control. Further, we observed activation of proregenerative genes in monocyte and macrophage cell populations, which may enhance tissue regeneration, neovascularization and dermal recovery.
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Affiliation(s)
- Yuanwen Jiang
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Artem A Trotsyuk
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Simiao Niu
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Dominic Henn
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Kellen Chen
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Chien-Chung Shih
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Madelyn R Larson
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Alana M Mermin-Bunnell
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Smiti Mittal
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Jian-Cheng Lai
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Aref Saberi
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Ethan Beard
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Serena Jing
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Donglai Zhong
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Sydney R Steele
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Kefan Sun
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Tanish Jain
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Eric Zhao
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Christopher R Neimeth
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Willian G Viana
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Jing Tang
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Dharshan Sivaraj
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Jagannath Padmanabhan
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Melanie Rodrigues
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - David P Perrault
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Arhana Chattopadhyay
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Zeshaan N Maan
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Melissa C Leeolou
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Clark A Bonham
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Sun Hyung Kwon
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Hudson C Kussie
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA
| | - Katharina S Fischer
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA
| | | | - Kui Liang
- BOE Technology Center, BOE Technology Group Co., Ltd, Beijing, China
| | - Kailiang Zhang
- BOE Technology Center, BOE Technology Group Co., Ltd, Beijing, China
| | - Ronjon Nag
- Stanford Distinguished Careers Institute, Stanford University, Stanford, CA, USA
| | - Michael P Snyder
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Michael Januszyk
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Geoffrey C Gurtner
- Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Surgery, University of Arizona College of Medicine, Tucson, AZ, USA.
| | - Zhenan Bao
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA.
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Xu M, Ji X, Huo J, Chen J, Liu N, Li Z, Jia Q, Sun B, Zhu M, Li P. Nonreleasing AgNP Colloids Composite Hydrogel with Potent Hemostatic, Photodynamic Bactericidal and Wound Healing-Promoting Properties. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17742-17756. [PMID: 37006134 DOI: 10.1021/acsami.3c03247] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Reactive oxygen species (ROS) produced by noble metallic nanoparticles under visible light is an effective way to combat drug-resistant bacteria colonized on the wound. However, the photocatalytic efficiency of noble metallic nanoparticles is limited by its self-aggregation in water media. Moreover, the fast release of noble metallic ions from nanoparticles might engender cellular toxicity and hazardous environmental issues. Herein, we chose AgNPs, the most common plasmonic noble metallic nanoparticles, as an example, modifying the surface of AgNPs with oleic acid and n-butylamine and imbedded them into calcium alginate (CA) hydrogel that holds tissue adhesion, rapid hemostatic, sunlight-sensitive antibacterial and anti-inflammatory abilities, and thus effectively promotes the healing of wounds. Unlike conventional AgNP-based materials, the constrain of colloids and hydrogel networks hinders the leach of Ag+. Nonetheless, the CA/Ag hydrogels exhibit on-demand photodynamic antibacterial efficacy due to the generation of ROS under visible light. In addition, the CA/Ag hydrogel can effectively stop the hemorrhage in a mouse liver bleeding model due to their skin-adaptive flexibility and tissue adhesiveness. The potent sunlight-responsive antibacterial activity of the CA/Ag hydrogel can effectively kill multidrug-resistant bacteria both in vitro (>99.999%) and in vivo (>99.9%), while the diminished Ag+ release guarantees its biocompatibility. The CA/Ag hydrogel significantly promotes the wound healing process by the downregulation of proinflammatory cytokines (TNF-α and IL-6) in a rodent full-thickness cutaneous wound model. Overall, the proposed multifunctional CA/Ag nanocomposite hydrogel has excellent prospects as an advanced wound dressing.
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Affiliation(s)
- Miao Xu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), Xi'an 710072, China
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
| | - Xiaohuan Ji
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Jingjing Huo
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Jingjie Chen
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Nian Liu
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Ziyue Li
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
| | - Qingyan Jia
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), Xi'an 710072, China
| | - Bin Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P. R. China
| | - Peng Li
- Frontiers Science Center for Flexible Electronics (FSCFE), Xi'an Institute of Flexible Electronics (IFE) & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University (NPU), Xi'an 710072, China
- Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
- The State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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Kuryanova AS, Aksenova NA, Savko MA, Glagolev NN, Dubovik AS, Plashchina IG, Timashev PS, Solov’eva AB. Effect of Amphiphilic Polymers on the Activity of Rose Bengal during the Photooxidation of Tryptophan in an Aqueous Medium. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422050168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gomes ATPC, Faustino MAF, Neves MGPMS, Almeida A. Bioluminescent Models to Evaluate the Efficiency of Light-Based Antibacterial Approaches. Methods Mol Biol 2022; 2451:631-669. [PMID: 35505039 DOI: 10.1007/978-1-0716-2099-1_34] [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] [Indexed: 06/14/2023]
Abstract
The emergence of microbial resistance to antimicrobials among several common pathogenic microbial strains is an increasing problem worldwide. Thus, it is urgent to develop not only new antimicrobial therapeutics to fight microbial infections, but also new effective, rapid, and inexpensive methods to monitor the efficacy of these new therapeutics. Antimicrobial photodynamic therapy (aPDT) and antimicrobial blue light (aBL) therapy are receiving considerable attention for their antimicrobial potential and represent realistic alternatives to antibiotics. To monitor the photoinactivation process provided by aPDT and aBL, faster and more effective methods are required instead of laborious conventional plating and overnight incubation procedures. Bioluminescent microbial models are very interesting in this context. Light emission from bioluminescent microorganisms is a highly sensitive indication of their metabolic activity and can be used to monitor, in real time, the effects of antimicrobial agents and therapeutics. This chapter reviews the efforts of the scientific community concerning the development of in vitro, ex vivo, and in vivo bioluminescent bacterial models and their potential to evaluate the efficiency of aPDT and aBL in the inactivation of bacteria.
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Affiliation(s)
- Ana T P C Gomes
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Maria A F Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Maria G P M S Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Adelaide Almeida
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
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9
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Hypericin and Pheophorbide a Mediated Photodynamic Therapy Fighting MRSA Wound Infections: A Translational Study from In Vitro to In Vivo. Pharmaceutics 2021; 13:pharmaceutics13091399. [PMID: 34575478 PMCID: PMC8472478 DOI: 10.3390/pharmaceutics13091399] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/17/2021] [Accepted: 08/27/2021] [Indexed: 01/14/2023] Open
Abstract
High prevalence rates of methicillin-resistant Staphylococcus aureus (MRSA) and lack of effective antibacterial treatments urge discovery of alternative therapeutic modalities. The advent of antibacterial photodynamic therapy (aPDT) is a promising alternative, composing rapid, nonselective cell destruction without generating resistance. We used a panel of clinically relevant MRSA to evaluate hypericin (Hy) and pheophobide a (Pa)-mediated PDT with clinically approved methylene blue (MB). We translated the promising in vitro anti-MRSA activity of selected compounds to a full-thick MRSA wound infection model in mice (in vivo) and the interaction of aPDT innate immune system (cytotoxicity towards neutrophils). Hy-PDT consistently displayed lower minimum bactericidal concentration (MBC) values (0.625-10 µM) against ATCC RN4220/pUL5054 and a whole panel of community-associated (CA)-MRSA compared to Pa or MB. Interestingly, Pa-PDT and Hy-PDT topical application demonstrated encouraging in vivo anti-MRSA activity (>1 log10 CFU reduction). Furthermore, histological analysis showed wound healing via re-epithelization was best in the Hy-PDT group. Importantly, the dark toxicity of Hy was significantly lower (p < 0.05) on neutrophils compared to Pa or MB. Overall, Hy-mediated PDT is a promising alternative to treat MRSA wound infections, and further rigorous mechanistic studies are warranted.
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10
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The inhibitory activity of 5-aminolevulinic acid photodynamic therapy (ALA-PDT) on Candida albicans biofilms. Photodiagnosis Photodyn Ther 2021; 34:102271. [PMID: 33785444 DOI: 10.1016/j.pdpdt.2021.102271] [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] [Received: 12/18/2020] [Revised: 02/26/2021] [Accepted: 03/22/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Biofilm-associated Candida albicans (C. albicans) infections are hard to cure due to their high levels of resistance to antifungal agents. Photodynamic therapy (PDT) is a promising approach for controlling infections caused by C. albicans. This study was designed to explore the inhibitory activity of PDT using 5-aminolevulinic acid (ALA) as photosensitizer against C. albicans biofilms. METHODS C. albicans cell suspensions were incubated for 48 h to form mature biofilms. ALA solution was diluted to 15 mM and incubated with C. albicans biofilms for 5 h before irradiated by red light semiconductor laser under the light intensity of 300 J/cm2 and fluence rate of 100 mW/cm2 for 50 min. The inhibitory activity was evaluated from subcellular level, molecular level and transcriptional level using transmission electron microscopy (TEM) observation, flow cytometry analysis and quantitative Real-Time Polymerase Chain Reaction (qRT-PCR) assays, respectively. RESULTS From subcellular level, the degraded content of the cytoplasm, nuclear condensation and mitochondrial swelling were observed after ALA-PDT. From molecular level, ALA-PDT resulted in 19.4 % cell apoptosis. From transcriptional level, ALA-PDT significantly reduced the mRNA expressions of hyphae-specific genes (HWP1 and ALS3) and long-term biofilm maintenance genes (UME6 and HGC1), whereas ALA or red light alone had no significant effect. CONCLUSIONS The inhibitory activity indicated that ALA-PDT may have the potential to serve as an antifungal strategy in eliminatingC. albicans biofilms.
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Pérez M, Robres P, Moreno B, Bolea R, Verde MT, Pérez-Laguna V, Aspiroz C, Gilaberte Y, Rezusta A. Comparison of Antibacterial Activity and Wound Healing in a Superficial Abrasion Mouse Model of Staphylococcus aureus Skin Infection Using Photodynamic Therapy Based on Methylene Blue or Mupirocin or Both. Front Med (Lausanne) 2021; 8:673408. [PMID: 34113639 PMCID: PMC8185160 DOI: 10.3389/fmed.2021.673408] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 04/28/2021] [Indexed: 12/11/2022] Open
Abstract
Background: Antibiotic resistance and impaired wound healing are major concerns in S. aureus superficial skin infections, and new therapies are needed. Antimicrobial photodynamic therapy (aPDT) is a new therapeutic approach for infections, but it also improves healing in many wound models. Objective: To compare the antimicrobial activity and the effects on wound healing of aPDT based on Methylene Blue (MB-aPDT) with mupirocin treatment, either alone or in combination, in superficial skin wounds of S. aureus-infected mice. Additionally, to evaluate the clinical, microbiological, and cosmetic effects on wound healing. Materials and Methods: A superficial skin infection model of S. aureus was established in SKH-1 mice. Infected wounds were treated with MB-aPDT, MB-aPDT with a daily topical mupirocin or only with mupirocin. No treatment was carried out in control animals. Daily clinical and microbiological examinations were performed until complete clinical wound healing. Histopathological studies and statistical analysis were performed at the end of the study. Results: MB-aPDT treatment induced the best wound healing compared to mupirocin alone or to mupirocin plus MB-aPDT. Superficial contraction at 24 h and a greater reduction in size at 48 h, quicker detachment of the crust, less scaling, and absence of scars were observed. Histopathological studies correlated with clinical and gross findings. By contrast, mupirocin showed the highest logaritmic reduction of S. aureus. Conclusions: MB-aPDT and mupirocin treatments are effective in a murine superficial skin infection model of S. aureus. One session of MB-aPDT was the best option for clinical wound healing and cosmetic results. The addition of mupirocin to MB-aPDT treatment improved antimicrobial activity; however, it did not enhance wound healing. No synergistic antibacterial effects were detected.
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Affiliation(s)
- Montserrat Pérez
- Animal Pathology Department, Veterinary Faculty, Zaragoza University, Zaragoza, Spain
| | - Pilar Robres
- Department of Microbiology, Hospital de Barbastro, Huesca, Spain
| | - Bernardino Moreno
- Animal Pathology Department, Veterinary Faculty, Zaragoza University, Zaragoza, Spain
| | - Rosa Bolea
- Animal Pathology Department, Veterinary Faculty, Zaragoza University, Zaragoza, Spain
| | - Maria T. Verde
- Animal Pathology Department, Veterinary Faculty, Zaragoza University, Zaragoza, Spain
| | - Vanesa Pérez-Laguna
- Department of Microbiology, Hospital Universitario Miguel Servet, IIS Aragón, Zaragoza, Spain
| | - Carmen Aspiroz
- Department of Microbiology, Hospital Royo Villanova, IIS Aragón, Zaragoza, Spain
| | - Yolanda Gilaberte
- Department of Dermatology, Hospital Universitario Miguel Servet, IIS Aragón, Zaragoza, Spain
| | - Antonio Rezusta
- Department of Microbiology, Hospital Universitario Miguel Servet, IIS Aragón, Zaragoza, Spain
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Wang Y, Li J, Geng S, Wang X, Cui Z, Ma W, Yuan M, Liu C, Ji Y. Aloe-emodin-mediated antimicrobial photodynamic therapy against multidrug-resistant Acinetobacter baumannii: An in vivo study. Photodiagnosis Photodyn Ther 2021; 34:102311. [PMID: 33930578 DOI: 10.1016/j.pdpdt.2021.102311] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/10/2021] [Accepted: 04/23/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIM Antimicrobial photodynamic therapy (aPDT) has shown great potential for treatment of superficial or localized multidrug-resistant (MDR) Acinetobacter baumannii infections. The purpose of this study was to investigate the cytotoxicity and in vivo safety of aloe-emodin (AE), and its photodynamic treatment efficacy against MDR A. baumannii infections. METHODS The cytotoxicity (dark toxicity) and phototoxicity of AE to human immortalized keratinocytes and mice fibroblasts were detected by CCK-8 kit. Low and high doses of AE were intravenously injected into mice to evaluate the safety of AE in vivo. Bioluminescent MDR A. baumannii strain was employed to establish the infection model on BALB/c mice after skin scald, and infection status and therapeutic effect of AE-mediated aPDT were assessed by animal imaging system. The peripheral blood of mice was analyzed by flow cytometer. RESULTS AE had low cytotoxicity to human immortalized keratinocytes and mice fibroblasts, and had certain phototoxicity to these cells under light irradiation. The in vivo experiments demonstrated that AE caused no obvious effects on the weight and pathological changes of mice. AE-mediated aPDT was effective in the treatment of MDR A. baumannii caused infections in mice after skin scald. CONCLUSIONS AE has potential to be used in the photodynamic treatment of MDR A. baumannii caused superficial infections after scald.
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Affiliation(s)
- Yang Wang
- Department of Pathogenic Microbiology & Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an, 710061, PR China
| | - Jiao Li
- Department of Pathogenic Microbiology & Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an, 710061, PR China
| | - Songmei Geng
- Department of Dermatology, The Second Affiliated Hospital of College of Medicine, Xi'an Jiaotong University, 157 Xi Wu Road, Xi'an, 710004, PR China
| | - Xiaopeng Wang
- Department of Dermatology, The Second Affiliated Hospital of College of Medicine, Xi'an Jiaotong University, 157 Xi Wu Road, Xi'an, 710004, PR China
| | - Zixin Cui
- Department of Pathogenic Microbiology & Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an, 710061, PR China
| | - Wenpeng Ma
- Department of Pathogenic Microbiology & Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an, 710061, PR China
| | - Meng Yuan
- Department of Pathogenic Microbiology & Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an, 710061, PR China
| | - Chengcheng Liu
- Department of Pathogenic Microbiology & Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an, 710061, PR China.
| | - Yanhong Ji
- Department of Pathogenic Microbiology & Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 West Yanta Road, Xi'an, 710061, PR China.
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13
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Vallejo MCS, Moura NMM, Gomes ATPC, Joaquinito ASM, Faustino MAF, Almeida A, Gonçalves I, Serra VV, Neves MGPMS. The Role of Porphyrinoid Photosensitizers for Skin Wound Healing. Int J Mol Sci 2021; 22:4121. [PMID: 33923523 PMCID: PMC8072979 DOI: 10.3390/ijms22084121] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/04/2021] [Accepted: 04/10/2021] [Indexed: 12/14/2022] Open
Abstract
Microorganisms, usually bacteria and fungi, grow and spread in skin wounds, causing infections. These infections trigger the immune system and cause inflammation and tissue damage within the skin or wound, slowing down the healing process. The use of photodynamic therapy (PDT) to eradicate microorganisms has been regarded as a promising alternative to anti-infective therapies, such as those based on antibiotics, and more recently, is being considered for skin wound-healing, namely for infected wounds. Among the several molecules exploited as photosensitizers (PS), porphyrinoids exhibit suitable features for achieving those goals efficiently. The capability that these macrocycles display to generate reactive oxygen species (ROS) gives a significant contribution to the regenerative process. ROS are responsible for avoiding the development of infections by inactivating microorganisms such as bacteria but also by promoting cell proliferation through the activation of stem cells which regulates inflammatory factors and collagen remodeling. The PS can act solo or combined with several materials, such as polymers, hydrogels, nanotubes, or metal-organic frameworks (MOF), keeping both the microbial photoinactivation and healing/regenerative processes' effectiveness. This review highlights the developments on the combination of PDT approach and skin wound healing using natural and synthetic porphyrinoids, such as porphyrins, chlorins and phthalocyanines, as PS, as well as the prodrug 5-aminolevulinic acid (5-ALA), the natural precursor of protoporphyrin-IX (PP-IX).
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Affiliation(s)
- Mariana C. S. Vallejo
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
| | - Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
| | - Ana T. P. C. Gomes
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.T.P.C.G.); (A.A.)
| | - Ana S. M. Joaquinito
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.T.P.C.G.); (A.A.)
| | - Maria Amparo F. Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
| | - Adelaide Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal; (A.T.P.C.G.); (A.A.)
| | - Idalina Gonçalves
- CICECO, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Vanda Vaz Serra
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal;
| | - Maria Graça P. M. S. Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.C.S.V.); (A.S.M.J.)
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Oyim J, Omolo CA, Amuhaya EK. Photodynamic Antimicrobial Chemotherapy: Advancements in Porphyrin-Based Photosensitize Development. Front Chem 2021; 9:635344. [PMID: 33898388 PMCID: PMC8058465 DOI: 10.3389/fchem.2021.635344] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 02/15/2021] [Indexed: 12/13/2022] Open
Abstract
The reduction of available drugs with effectiveness against microbes is worsening with the current global crisis of antimicrobial resistance. This calls for innovative strategies for combating antimicrobial resistance. Photodynamic Antimicrobial Chemotherapy (PACT) is a relatively new method that utilizes the combined action of light, oxygen, and a photosensitizer to bring about the destruction of microorganisms. This technique has been found to be effective against a wide spectrum of microorganisms, including bacteria, viruses, and fungi. Of greater interest is their ability to destroy resistant strains of microorganisms and in effect help in combating the emergence of antimicrobial resistance. This manuscript reviews porphyrins and porphyrin-type photosensitizers that have been studied in the recent past with a focus on their structure-activity relationship.
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Affiliation(s)
- James Oyim
- School of Pharmacy and Health Sciences, United States International University-Africa, Nairobi, Kenya
- Department of Chemistry, University of Nairobi, Nairobi, Kenya
| | - Calvin A. Omolo
- School of Pharmacy and Health Sciences, United States International University-Africa, Nairobi, Kenya
- Discipline of Pharmaceutical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Edith K. Amuhaya
- School of Pharmacy and Health Sciences, United States International University-Africa, Nairobi, Kenya
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15
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Bagood MD, Gallegos AC, Medina Lopez AI, Pham VX, Yoon DJ, Fregoso DR, Yang HY, Murphy WJ, Isseroff RR. Re-Examining the Paradigm of Impaired Healing in the Aged Murine Excision Wound Model. J Invest Dermatol 2020; 141:1071-1075.e4. [PMID: 33259830 DOI: 10.1016/j.jid.2020.10.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/22/2020] [Accepted: 10/29/2020] [Indexed: 10/22/2022]
Affiliation(s)
- Michelle D Bagood
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - Anthony C Gallegos
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA; Dermatology Section, VA Northern California Health Care System, Sacramento, California, USA
| | - Andrea I Medina Lopez
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA; Dermatology Section, VA Northern California Health Care System, Sacramento, California, USA
| | - Vincent X Pham
- Department of Molecular and Cellular Biology, University of California Davis, California, USA
| | - Daniel J Yoon
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA; Dermatology Section, VA Northern California Health Care System, Sacramento, California, USA
| | - Daniel R Fregoso
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - Hsin-Ya Yang
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - William J Murphy
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA; Department of Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA
| | - R Rivkah Isseroff
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, California, USA; Dermatology Section, VA Northern California Health Care System, Sacramento, California, USA.
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16
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Dharmaratne P, Wang B, Wong RCH, Chan BCL, Lau KM, Ke MR, Lau CBS, Ng DKP, Fung KP, Ip M. Monosubstituted tricationic Zn(II) phthalocyanine enhances antimicrobial photodynamic inactivation (aPDI) of methicillin-resistant Staphylococcus aureus (MRSA) and cytotoxicity evaluation for topical applications: in vitro and in vivo study. Emerg Microbes Infect 2020; 9:1628-1637. [PMID: 32619386 PMCID: PMC7473158 DOI: 10.1080/22221751.2020.1790305] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/28/2020] [Indexed: 12/18/2022]
Abstract
Antimicrobial photodynamic therapy (aPDT) is an innovative approach to combat multi-drug resistant bacteria. It is known that cationic Zn(II) phthalocyanines (ZnPc) are effective in mediating aPDT against methicillin-resistant Staphylococcus aureus (MRSA). Here we used ZnPc-based photosensitizer named ZnPcE previously reported by our research group to evaluate its aPDT efficacy against broad spectrum of clinically relevant MRSAs. Remarkably, in vitro anti-MRSA activity was achieved using near-infrared (NIR, >610 nm) light with minimal bactericidal concentrations ranging <0.019-0.156 µM against the panel of MRSAs. ZnPcE was not only significantly (p < .05) more potent than methylene blue, which is a clinically approved photosensitizer but also demonstrated low cytotoxicity against human fibroblasts cell line (Hs-27) and human immortalized keratinocytes cell line (HaCaT). The toxicity was further evaluated on human 3-D skin constructs and found ZnPcE did not manifest in vivo skin irritation at ≤7.8 µM concentration. In the murine MRSA wound model, ZnPcE with PDT group demonstrated > 4 log10 CFU reduction and the value is significantly higher (p < .05) than all test groups except positive control. To conclude, results of present study provide a scientific basis for future clinical evaluation of ZnPcE-PDT on MRSA wound infection.
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Affiliation(s)
- Priyanga Dharmaratne
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Baiyan Wang
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Roy C. H. Wong
- Department of Chemistry, Faculty of Science, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Ben C. L. Chan
- Institute of Chinese Medicine and State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Kit-Man Lau
- Institute of Chinese Medicine and State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Mei-Rong Ke
- Department of Chemistry, Faculty of Science, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Clara B. S. Lau
- Institute of Chinese Medicine and State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Dennis K. P. Ng
- Department of Chemistry, Faculty of Science, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
| | - Kwok-Pui Fung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
- Institute of Chinese Medicine and State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong (SAR), People’s Republic of China
- CUHK-Zhejiang University Joint Laboratory on Natural Products and Toxicology Research, Hong Kong (SAR), People's Republic of China
| | - Margaret Ip
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong (SAR), People’s Republic of China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, People’s Republic of China
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Kaura A, Shukla R, Lamyman A, Almeyda R, Draper M, Martinez-Devesa P, Qureishi A. Photodynamic Therapy as a New Treatment for Chronic Rhinosinusitis - A Systematic Review. Turk Arch Otorhinolaryngol 2020; 58:254-267. [PMID: 33554201 DOI: 10.5152/tao.2020.5218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 10/19/2020] [Indexed: 11/22/2022] Open
Abstract
This review examines the latest evidence for photodynamic therapy (PDT) in treating chronic rhinosinusitis. MedLine, EMBASE and TRIP Database searches were conducted using the terms: "photodynamic" or "phototherapy" or "photo" and "sinusitis" or "rhinosinusitis," date range January 2000 to May 2020. A total of 192 records were initially identified, after duplicates and exclusions, 9 full papers and 3 abstracts were included. All study types including in-vitro, animal and human studies were evaluated. Whilst there is in-vitro evidence for the efficacy of PDT's bactericidal effect on drug resistant bacteria and biofilm viability, there are few clinical studies. PDT is a promising area of research, but larger, focused studies looking at the safety, delivery, efficacy, and patient selection are required before it can be considered a viable treatment for CRS.
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Affiliation(s)
- Anika Kaura
- Ear Institute, University College London, London, UK
| | - Rishi Shukla
- Department of ENT Surgery, John Radcliffe Hospital, Headley Way, Headington, Oxford, UK
| | - Abigail Lamyman
- Department of ENT Surgery, John Radcliffe Hospital, Headley Way, Headington, Oxford, UK
| | - Robert Almeyda
- Department of ENT Surgery, Royal Berkshire Hospital, Craven Road, Reading, UK
| | - Mark Draper
- Department of ENT Surgery, Milton Keynes University Hospital, Standing Way, Milton Keynes, UK
| | - Pablo Martinez-Devesa
- Department of ENT Surgery, John Radcliffe Hospital, Headley Way, Headington, Oxford, UK
| | - Ali Qureishi
- Department of ENT Surgery, John Radcliffe Hospital, Headley Way, Headington, Oxford, UK
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18
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Wang Y, Song J, Zhang F, Zeng K, Zhu X. Antifungal Photodynamic Activity of Hexyl-Aminolevulinate Ethosomes Against Candida albicans Biofilm. Front Microbiol 2020; 11:2052. [PMID: 33042036 PMCID: PMC7518189 DOI: 10.3389/fmicb.2020.02052] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 08/05/2020] [Indexed: 02/04/2023] Open
Abstract
Biofilm formation is responsible for the development of chronic and recurrent Candida albicans infections. The generation of biofilms is commonly accompanied by high resistance to conventional antifungal drugs, which can increase up to 1,000-fold. Fortunately, antimicrobial photodynamic therapy (aPDT) has shown excellent potential to treat biofilm infections. However, the current most commonly used photosensitizer (PS), aminolevulinic acid (ALA), is hydrophilic, unstable, and has low permeability, leading to unsatisfactory effects on biofilm eradication. To solve these problems, more stable lipophilic PSs and more effective permeability carriers could be considered as two effective solutions. Hexyl-aminolevulinate (HAL) has good bioavailability as a PS, and we proved in a previous study that ethosomes (ES), lipid-based nanocarriers, promote percutaneous drug penetration. In our previous study, a HAL-ES system presented superior photodynamic effects compared to those of ALA or HAL alone. Therefore, here, we aim to evaluate the biological effects of HAL-ES-mediated aPDT on C. albicans biofilm. An XTT sodium salt assay showed that aPDT using 0.5% HAL decreased C. albicans biofilm activity by 69.71 ± 0.43%. Moreover, aPDT with 0.5% HAL-ES further decreased biofilm activity by 92.95 ± 0.16% and inhibited growth of 25.71 ± 1.61% within 48 h, mostly via its effect on the hyphae growth, which correlated with a three-fold increase in C. albicans plasma membrane permeabilization. Notably, HAL-ES-mediated aPDT significantly reduced the sessile minimum inhibitory concentration 50 (SMIC50) of fluconazole to <2.0 μg/ml, and the 21-day survival rate of C. albicans biofilm-infected mice increased from 6.7 to 73.3%. It also significantly reduced the drug resistance and in vivo pathogenicity of C. albicans biofilm. These results demonstrate that HAL-ES-mediated aPDT could be an effective therapy for C. albicans biofilm infections; while also serving as a particularly promising effective treatment for cutaneous or mucocutaneous candidiasis and the prevention of progression to systemic candidiasis.
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Affiliation(s)
- Yingzhe Wang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinru Song
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Feiyin Zhang
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Kang Zeng
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Xiaoliang Zhu
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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19
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Xiao F, Cao B, Wen L, Su Y, Zhan M, Lu L, Hu X. Photosensitizer conjugate-functionalized poly(hexamethylene guanidine) for potentiated broad-spectrum bacterial inhibition and enhanced biocompatibility. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.06.038] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Research Techniques Made Simple: Mouse Bacterial Skin Infection Models for Immunity Research. J Invest Dermatol 2020; 140:1488-1497.e1. [PMID: 32407714 DOI: 10.1016/j.jid.2020.04.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 01/11/2023]
Abstract
Bacterial skin infections are a major societal health burden and are increasingly difficult to treat owing to the emergence of antibiotic-resistant strains such as community-acquired methicillin-resistant Staphylococcus aureus. Understanding the immunologic mechanisms that provide durable protection against skin infections has the potential to guide the development of immunotherapies and vaccines to engage the host immune response to combat these antibiotic-resistant strains. To this end, mouse skin infection models allow researchers to examine host immunity by investigating the timing, inoculum, route of infection and the causative bacterial species in different wild-type mouse backgrounds as well as in knockout, transgenic, and other types of genetically engineered mouse strains. To recapitulate the various types of human skin infections, many different mouse models have been developed. For example, four models frequently used in dermatological research are based on the route of infection, including (i) subcutaneous infection models, (ii) intradermal infection models, (iii) wound infection models, and (iv) epicutaneous infection models. In this article, we will describe these skin infection models in detail along with their advantages and limitations. In addition, we will discuss how humanized mouse models such as the human skin xenograft on immunocompromised mice might be used in bacterial skin infection research.
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Huon JF, Gaborit B, Caillon J, Boutoille D, Navas D. A murine model of Staphylococcus aureus infected chronic diabetic wound: A new tool to develop alternative therapeutics. Wound Repair Regen 2020; 28:400-408. [PMID: 32134548 DOI: 10.1111/wrr.12802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 02/05/2020] [Accepted: 02/11/2020] [Indexed: 12/11/2022]
Abstract
Diabetic wound infection is a frequent complication that may result in limb amputation. To develop new treatment strategies in response to increasing bacterial resistance, animal models are needed. We created a diabetic mouse model with chronically infected wounds. Diabetes was induced using streptozotocin, and wounds were performed using a biopsy punch, and then infected with a clinical strain of Staphylococcus aureus. Chronification was reached by delaying healing thanks to chemical products (aminotriazole and mercaptosuccinic acid). Overall survival, as well as clinical, bacteriological and immunological data in skin, blood and spleens were collected at days 1, 7, and 14 after wounding. After a transient bacteremia proved by bacteria presence in spleen and kidneys in the first days after wounding, infected mice showed a chronic infection, with a bioburden impairing the healing process, and bacteria persistence compared to control mice. Infected mice showed gradual increasing skin levels of IL-17A compared to control mice that resulted in an IL-17/IFN-γ inbalance, pointing out a localized Th17 polarization of the immune response. Whether infected or not, the skin level of IL-10 decreased dramatically at days 1 and 7 after wounding, with an increase observed only in the control mice at day 14. After a decrease at day 1 in both groups, spleen IL-10 showed a rather steady level at days 7 and 14 in the control group compared with the decrease observed in the infected group. The spleen IL-10/IFN-γ ratio showed a systemic inflammatory response with Th1 polarization. Therefore, this model provides useful data to study wound healing. It is easy to reproduce, affordable and offers clinical and biological tools to evaluate new therapeutics.
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Affiliation(s)
- Jean-François Huon
- CHU Nantes, Clinical Pharmacy Unit, Nantes, France.,Nantes University, Laboratory of Clinical and Experimental Therapeutics of Infections, Nantes, France
| | - Benjamin Gaborit
- Nantes University, Laboratory of Clinical and Experimental Therapeutics of Infections, Nantes, France.,CHU Nantes, Infectious Disease Department, Nantes, France
| | - Jocelyne Caillon
- Nantes University, Laboratory of Clinical and Experimental Therapeutics of Infections, Nantes, France.,CHU Nantes, Microbiology Laboratory, Nantes, France
| | - David Boutoille
- Nantes University, Laboratory of Clinical and Experimental Therapeutics of Infections, Nantes, France.,CHU Nantes, Infectious Disease Department, Nantes, France
| | - Dominique Navas
- CHU Nantes, Clinical Pharmacy Unit, Nantes, France.,Nantes University, Laboratory of Clinical and Experimental Therapeutics of Infections, Nantes, France
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22
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Hoffmann JP, Friedman JK, Wang Y, McLachlan JB, Sammarco MC, Morici LA, Roy CJ. In situ Treatment With Novel Microbiocide Inhibits Methicillin Resistant Staphylococcus aureus in a Murine Wound Infection Model. Front Microbiol 2020; 10:3106. [PMID: 32038549 PMCID: PMC6990143 DOI: 10.3389/fmicb.2019.03106] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/23/2019] [Indexed: 01/27/2023] Open
Abstract
Increased prevalence of antibiotic resistance in skin and soft tissue infections is a concerning public health challenge currently facing medical science. A combinatory, broad spectrum biocidal antiseptic has been developed (“ASP”) as a topically applied solution to potential resistant and polymicrobial infected wounds that may be encountered in this context. The ASP-105 designate was evaluated in vitro by determining the minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC), against different strains of methicillin-resistant Staphylococcus aureus (MRSA), resulting estimates of which approximated the positive control (bacitracin). To evaluate in vivo microbicide efficacy, we utilized a murine full thickness wound model to study bacterial infection and wound healing kinetics. Mice were experimentally wounded dorsally and infected with bioluminescent MRSA. The infected wound was splinted, dressed and treated topically with either ASP-105, vehicle (-control), or bacitracin. Bacterial burden and wound healing was monitored using an in vivo imaging system and evaluation of biofilm formation using scanning electron microscopy of wound dressing. Treatment with ASP-105 significantly reduced bacterial burdens in the first 3 days of infection and inhibited MRSA biofilm formation on the surgical dressing. Notably, treatment with ASP-105 resulted in a sterilizing effect of any detectable MRSA in nearly all (80%; 4/5) of treatment group. All mice receiving vehicle control developed highly MRSA-luminescent and purulent wound beds as a result of experimental infection. The ASP-105 therapy facilitated natural healing in the absence of MRSA infection. Results of this study suggests that that the novel “ASP” combinatory topical antiseptic can be used directly in wounds as a potent, broad-spectrum microbicide against drug resistant S. aureus without injury to the wound bed and impediment of natural restorative processes associated with wound healing. Further studies are warranted to test the effectiveness of this biocidal formulation against other recalcitrant bacterial and fungal pathogens in the context of serious wound infections, and to assess utility of use in both clinical and self-treat scenarios.
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Affiliation(s)
- Joseph P Hoffmann
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Jessica K Friedman
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA, United States
| | - Yihui Wang
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, United States
| | - James B McLachlan
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Mimi C Sammarco
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA, United States
| | - Lisa A Morici
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, United States
| | - Chad J Roy
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, United States.,Division of Microbiology, Tulane National Primate Research Center, Covington, LA, United States
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23
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Busscher HJ, Woudstra W, van Kooten TG, Jutte P, Shi L, Liu J, Hinrichs WLJ, Frijlink HW, Shi R, Liu J, Parvizi J, Kates S, Rotello VM, Schaer TP, Williams D, Grainger DW, van der Mei HC. Accepting higher morbidity in exchange for sacrificing fewer animals in studies developing novel infection-control strategies. Biomaterials 2019; 232:119737. [PMID: 31901693 DOI: 10.1016/j.biomaterials.2019.119737] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/02/2019] [Accepted: 12/25/2019] [Indexed: 10/25/2022]
Abstract
Preventing bacterial infections from becoming the leading cause of death by the year 2050 requires the development of novel, infection-control strategies, building heavily on biomaterials science, including nanotechnology. Pre-clinical (animal) studies are indispensable for this development. Often, animal infection outcomes bear little relation to human clinical outcome. Here, we review conclusions from pathogen-inoculum dose-finding pilot studies for evaluation of novel infection-control strategies in murine models. Pathogen-inoculum doses are generally preferred that produce the largest differences in quantitative infection outcome parameters between a control and an experimental group, without death or termination of animals due to having reached an inhumane end-point during the study. However, animal death may represent a better end-point for evaluation than large differences in outcome parameters or number of days over which infection persists. The clinical relevance of lower pre-clinical outcomes, such as bioluminescence, colony forming units (CFUs) retrieved or more rapid clearance of infection is unknown, as most animals cure infection without intervention, depending on pathogen-species and pathogen-inoculum dose administered. In human clinical practice, patients suffering from infection present to hospital emergency wards, frequently in life-threatening conditions. Animal infection-models should therefore use prevention of death and recurrence of infection as primary efficacy targets to be addressed by novel strategies. To compensate for increased animal morbidity and mortality, animal experiments should solely be conducted for pre-clinical proof of principle and safety. With the advent of sophisticated in vitro models, we advocate limiting use of animal models when exploring pathogenesis or infection mechanisms.
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Affiliation(s)
- Henk J Busscher
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands.
| | - Willem Woudstra
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Theo G van Kooten
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Paul Jutte
- University of Groningen, University Medical Center of Groningen, Department of Orthopaedic Surgery, Hanzeplein 1, 9700 RB, Groningen, the Netherlands
| | - Linqi Shi
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, PR China
| | - Jianfeng Liu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Tianjin, PR China
| | - Wouter L J Hinrichs
- University of Groningen, Department of Pharmaceutical Technology and Biopharmacy, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Hendrik W Frijlink
- University of Groningen, Department of Pharmaceutical Technology and Biopharmacy, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands
| | - Rui Shi
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren'ai Rd, Suzhou, 215123, Jiangsu, PR China
| | - Jian Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren'ai Rd, Suzhou, 215123, Jiangsu, PR China
| | - Javad Parvizi
- Sidney Kimmel Medical College, Rothman Institute at Thomas Jefferson University Hospital, Sheridan Building, Suite 1000, 125 South 9th Street, Philadelphia, PA, 19107, USA
| | - Stephen Kates
- Virginia Commonwealth University, Department of Orthopaedic Surgery, 1200 E. Broad St, Richmond, VA, 23059-0153, USA
| | - Vincent M Rotello
- University of Massachusetts, Department of Chemistry, 710 North Pleasant Street, Amherst, MA, 01003, USA
| | - Thomas P Schaer
- University of Pennsylvania, Department of Clinical Studies New Bolton Center, Kennett Square, PA, USA
| | - Dustin Williams
- University of Utah, Department of Orthopaedics, Salt Lake City, UT, 84112, USA; George E. Wahlen Department of Veterans Affairs, Salt Lake City, UT, 84148, USA
| | - David W Grainger
- University of Utah, Department of Biomedical Engineering, Department of Pharmaceutics and Pharmaceutical Chemistry, Salt Lake City, UT, 84112, USA
| | - Henny C van der Mei
- University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV, Groningen, the Netherlands.
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24
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Abstract
The emergence of antimicrobial drug resistance requires development of alternative therapeutic options. Multidrug-resistant strains of Enterococcus spp., Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumanii, Pseudomonas aeruginosa and Enterobacter spp. are still the most commonly identified antimicrobial-resistant pathogens. These microorganisms are part of the so-called 'ESKAPE' pathogens to emphasize that they currently cause the majority of hospital acquired infections and effectively 'escape' the effects of antibacterial drugs. Thus, alternative, safer and more efficient antimicrobial strategies are urgently needed, especially against 'ESKAPE' superbugs. Antimicrobial photodynamic inactivation is a therapeutic option used in the treatment of infectious diseases. It is based on a combination of a photosensitizer, light and oxygen to remove highly metabolically active cells.
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25
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Fila G, Krychowiak M, Rychlowski M, Bielawski KP, Grinholc M. Antimicrobial blue light photoinactivation of Pseudomonas aeruginosa: Quorum sensing signaling molecules, biofilm formation and pathogenicity. JOURNAL OF BIOPHOTONICS 2018; 11:e201800079. [PMID: 29952074 DOI: 10.1002/jbio.201800079] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 06/26/2018] [Indexed: 06/08/2023]
Abstract
Pseudomonas aeruginosa is a common causative bacterium of acute and chronic infections that have been responsible for high mortality over the past decade. P. aeruginosa produces many virulence factors such as toxins, enzymes and dyes that are strongly dependent on quorum sensing (QS) signaling systems. P. aeruginosa has three major QS systems (las, rhl and Pseudomonas quinolone signal) that regulate the expression of genes encoding virulence factors as well as biofilm production and maturation. Antimicrobial blue light (aBL) is considered a therapeutic option for bacterial infections and has other benefits, such as reducing bacterial virulence. Therefore, this study investigated the efficacy of aBL to reduce P. aeruginosa pathogenicity. aBL treatment resulted in the reduced activity of certain QS signaling molecules in P. aeruginosa and inhibited biofilm formation. in vivo tests using a Caenorhabditis elegans infection model indicated that sublethal aBL decreased the pathogenicity of P. aeruginosa. aBL may be a new virulence-targeting therapeutic approach.
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Affiliation(s)
- Grzegorz Fila
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Marta Krychowiak
- Laboratory of Biologically Active Compounds, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Michal Rychlowski
- Laboratory of Virus Molecular Biology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Krzysztof Piotr Bielawski
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Mariusz Grinholc
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
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26
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Taslı H, Akbıyık A, Topaloğlu N, Alptüzün V, Parlar S. Photodynamic antimicrobial activity of new porphyrin derivatives against methicillin resistant Staphylococcus aureus. J Microbiol 2018; 56:828-837. [PMID: 30353469 DOI: 10.1007/s12275-018-8244-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/02/2018] [Accepted: 08/02/2018] [Indexed: 01/21/2023]
Abstract
Methicillin resistant Staphylococcus aureus (MRSA) with multiple drug resistance patterns is frequently isolated from skin and soft tissue infections that are involved in chronic wounds. Today, difficulties in the treatment of MRSA associated infections have led to the development of alternative approaches such as antimicrobial photodynamic therapy. This study aimed to investigate photoinactivation with cationic porphyrin derivative compounds against MRSA in in-vitro conditions. In the study, MRSA clinical isolates with different antibiotic resistance profiles were used. The newly synthesized cationic porphyrin derivatives (PM, PE, PPN, and PPL) were used as photosensitizer, and 655 nm diode laser was used as light source. Photoinactivation experiments were performed by optimizing energy doses and photosensitizer concentrations. In photoinactivation experiments with different energy densities and photosensitizer concentrations, more than 99% reduction was achieved in bacterial cell viability. No decrease in bacterial survival was observed in control groups. It was determined that there was an increase in photoinactivation efficiency by increasing the energy dose. At the energy dose of 150 J/cm2 a survival reduction of over 6.33 log10 was observed in each photosensitizer type. While 200 μM PM concentration was required for this photoinactivation, 12.50 μM was sufficient for PE, PPN, and PPL. In our study, antimicrobial photodynamic therapy performed with cationic porphyrin derivatives was found to have potent antimicrobial efficacy against multidrug resistant S. aureus which is frequently isolated from wound infections.
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Affiliation(s)
- Hüseyin Taslı
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Ege University, 35100, Izmir, Turkey.
| | - Ayse Akbıyık
- Department of Nursing, Faculty of Health Sciences, Izmir Katip Celebi University, 35620, Izmir, Turkey
| | - Nermin Topaloğlu
- Department of Biomedical Engineering, Faculty of Engineering and Architecture Izmir Katip Celebi University, 35620, Izmir, Turkey
| | - Vildan Alptüzün
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ege University, 35100, Izmir, Turkey
| | - Sülünay Parlar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ege University, 35100, Izmir, Turkey
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27
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Chang MH, Hsiao YP, Hsu CY, Lai PS. Photo-Crosslinked Polymeric Matrix with Antimicrobial Functions for Excisional Wound Healing in Mice. NANOMATERIALS 2018; 8:nano8100791. [PMID: 30301173 PMCID: PMC6215132 DOI: 10.3390/nano8100791] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 09/30/2018] [Accepted: 09/30/2018] [Indexed: 01/08/2023]
Abstract
Wound infection extends the duration of wound healing and also causes systemic infections such as sepsis, and, in severe cases, may lead to death. Early prevention of wound infection and its appropriate treatment are important. A photoreactive modified gelatin (GE-BTHE) was synthesized by gelatin and a conjugate formed from the 3,3′,4,4′-benzophenone tetracarboxylic dianhydride (BTDA) and the 2-hydroxyethyl methacrylate (HEMA). Herein, we investigated the photocurable polymer solution (GE-BTHE mixture) containing GE-BTHE, poly(ethylene glycol) diacrylate (PEGDA), chitosan, and methylene blue (MB), with antimicrobial functions and photodynamic antimicrobial chemotherapy for wound dressing. This photocurable polymer solution was found to have fast film-forming property attributed to the photochemical reaction between GE-BTHE and PEGDA, as well as the antibacterial activity in vitro attributed to the ingredients of chitosan and MB. Our in vivo results also demonstrated that untreated wounds after 3 days had the same scab level as the GE-BTHE mixture-treated wounds after 20 s of irradiation, which indicates that the irradiated GE-BTHE mixture can be quickly transferred into artificial scabs to protect wounds from an infection that can serve as a convenient excisional wound dressing with antibacterial efficacy. Therefore, it has the potential to treat nonhealing wounds, deep burns, diabetic ulcers and a variety of mucosal wounds.
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Affiliation(s)
- Ming-Hsiang Chang
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Yu-Ping Hsiao
- Institute of Medicine, School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan.
- Department of Dermatology, Chung Shan Medical University Hospital, Taichung 402, Taiwan.
| | - Chia-Yen Hsu
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Ping-Shan Lai
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
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28
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Houang J, Perrone GG, Pedrinazzi C, Longo L, Mawad D, Boughton PC, Ruys AJ, Lauto A. Genetic Tolerance to Rose Bengal Photodynamic Therapy and Antifungal Clinical Application for Onychomycosis. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jessica Houang
- School of Aerospace; Mechanical and Mechatronic Engineering; University of Sydney; Sydney NSW 2006 Australia
| | - Gabriel G. Perrone
- School of Science and Health; Western Sydney University; Penrith NSW 2751 Australia
| | | | - Leonardo Longo
- School of Medicine; University of Siena; 53100 Siena Italy
| | - Damia Mawad
- School of Materials Science and Engineering; University of New South Wales; Sydney NSW 2052 Australia
- Australian Centre for NanoMedicine and ARC Centre of Excellence in Convergent BioNano Science and Technology; University of New South Wales; Sydney NSW 2052 Australia
- Centre for Advanced Macromolecular Design; University of New South Wales; Sydney NSW 2052 Australia
| | - Philip C. Boughton
- School of Aerospace; Mechanical and Mechatronic Engineering; University of Sydney; Sydney NSW 2006 Australia
| | - Andrew J. Ruys
- School of Aerospace; Mechanical and Mechatronic Engineering; University of Sydney; Sydney NSW 2006 Australia
| | - Antonio Lauto
- School of Science and Health; Western Sydney University; Penrith NSW 2751 Australia
- Biomedical Engineering and Neuroscience Research Group; The MARCS Institute; Western Sydney University; Penrith NSW 2751 Australia
- School of Medicine; Western Sydney University; Penrith NSW 2750 Australia
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29
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Nakonieczna J, Wolnikowska K, Ogonowska P, Neubauer D, Bernat A, Kamysz W. Rose Bengal-Mediated Photoinactivation of Multidrug Resistant Pseudomonas aeruginosa Is Enhanced in the Presence of Antimicrobial Peptides. Front Microbiol 2018; 9:1949. [PMID: 30177928 PMCID: PMC6110182 DOI: 10.3389/fmicb.2018.01949] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 08/02/2018] [Indexed: 12/24/2022] Open
Abstract
Due to the overuse of antibiotics in medicine and food production, and their targeted mechanism of action, an increasing rate in spreading of antibiotic resistance genes has been noticed. This results in inefficient therapy outcomes and higher mortality all over the world. Pseudomonas aeruginosa (carbapenem-resistant) is considered one of the top three critical species according to the World Health Organization’s priority pathogens list. This means that new drugs and/or treatments are needed to tackle infections caused by this bacterium. In this context search for new/alternative approaches that would overcome resistance to classical antimicrobials is of prime importance. The use of antimicrobial photodynamic inactivation (aPDI) and antimicrobial peptides (AMPs) is an efficient strategy to treat localized infections caused by multidrug-resistant P. aeruginosa. In this study, we have treated P. aeruginosa cells photodynamically in the presence and in the absence of AMP (CAMEL or pexiganan). The conditions for aPDI were as follows: rose bengal (RB) as a photosensitizing agent at 1–10 μM concentration, and subsequent irradiation with 514 nm-LED at 23 mW/cm2 irradiance. The analysis of cell number after the treatment has shown that the combined action of RB-mediated aPDI and cationic AMPs reduced the number of viable cells below the limit of detection (<1log10 CFU/ml). This was in contrast to no reduction or partial reduction after aPDI or AMP applied separately. Students t-test was applied to test the statistical significance of the results. Noteworthy, our treatment proved to be effective against all 35 clinical isolates of P. aeruginosa tested within this study, including those characterized as multiresistant. Moreover, we demonstrated that such treatment is safe and does not violate the growth dynamics of human keratinocytes (77.3–97.64% survival depending on the concentration of the studied compounds or their mixtures).
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Affiliation(s)
- Joanna Nakonieczna
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Gdańsk, Poland
| | - Katarzyna Wolnikowska
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Gdańsk, Poland
| | - Patrycja Ogonowska
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Gdańsk, Poland
| | - Damian Neubauer
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
| | - Agnieszka Bernat
- Laboratory of Molecular Diagnostics, Department of Biotechnology, Intercollegiate Faculty of Biotechnology, University of Gdańsk and Medical University of Gdańsk, Gdańsk, Poland.,Laboratory of Experimental Embryology, Institute of Genetics and Animal Breeding, Polish Academy of Sciences, Warsaw, Poland
| | - Wojciech Kamysz
- Department of Inorganic Chemistry, Faculty of Pharmacy, Medical University of Gdańsk, Gdańsk, Poland
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30
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Pérez-Laguna V, García-Malinis AJ, Aspiroz C, Rezusta A, Gilaberte Y. Antimicrobial effects of photodynamic therapy. GIORN ITAL DERMAT V 2018; 153:833-846. [PMID: 29683289 DOI: 10.23736/s0392-0488.18.06007-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The microorganisms that cause infections are increasing their resistance to antibiotics. In this context, alternative treatments are necessary. The antimicrobial photodynamic therapy (aPDT) is a therapeutic modality based on photosensitizing molecules that end up generating reactive oxygen species that induce the destruction of the target cells when are irradiated with light of a suitable wavelength and at a proper dose. The cells targeted by aPDT are all types of microorganisms (bacteria, fungi and parasites) including viruses and has been proven effective against representative members of all of them. In the field of dermatology, aPDT has been tested with promising results in different infections such as chronic ulcers, acne, onychomycosis and other cutaneous mycoses, as well as in leishmaniasis. Therefore, it is presented as a possible treatment option against the agents that cause skin and/or mucous infections.
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Affiliation(s)
| | | | - Carmen Aspiroz
- Unit of Microbiology, Hospital Royo Villanova, Zaragoza, Spain
| | - Antonio Rezusta
- IIS Aragón, Zaragoza, Spain.,Department of Microbiology, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Yolanda Gilaberte
- IIS Aragón, Zaragoza, Spain - .,Department of Dermatology, Hospital Universitario Miguel Servet, Zaragoza, Spain
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31
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Tannert A, Ramoji A, Neugebauer U, Popp J. Photonic monitoring of treatment during infection and sepsis: development of new detection strategies and potential clinical applications. Anal Bioanal Chem 2017; 410:773-790. [PMID: 29214536 DOI: 10.1007/s00216-017-0713-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 10/06/2017] [Accepted: 10/17/2017] [Indexed: 01/02/2023]
Abstract
Despite the strong decline in the infection-associated mortality since the development of the first antibiotics, infectious diseases are still a major cause of death in the world. With the rising number of antibiotic-resistant pathogens, the incidence of deaths caused by infections may increase strongly in the future. Survival rates in sepsis, which occurs when body response to infections becomes uncontrolled, are still very poor if an adequate therapy is not initiated immediately. Therefore, approaches to monitor the treatment efficacy are crucially needed to adapt therapeutic strategies according to the patient's response. An increasing number of photonic technologies are being considered for diagnostic purpose and monitoring of therapeutic response; however many of these strategies have not been introduced into clinical routine, yet. Here, we review photonic strategies to monitor response to treatment in patients with infectious disease, sepsis, and septic shock. We also include some selected approaches for the development of new drugs in animal models as well as new monitoring strategies which might be applicable to evaluate treatment response in humans in the future. Figure Label-free probing of blood properties using photonics.
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Affiliation(s)
- Astrid Tannert
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
- Jena Biophotonics and Imaging Laboratory, 07745, Jena, Germany
| | - Anuradha Ramoji
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - Ute Neugebauer
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany.
- Jena Biophotonics and Imaging Laboratory, 07745, Jena, Germany.
- Center for Sepsis Control and Care, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany.
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany.
- InfectoGnostics Research Campus Jena, Philosophenweg 7, Jena, Germany.
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745, Jena, Germany
- Jena Biophotonics and Imaging Laboratory, 07745, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
- Institute of Physical Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, 07743, Jena, Germany
- InfectoGnostics Research Campus Jena, Philosophenweg 7, Jena, Germany
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