1
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Metzger M, Manhartseder S, Krausgruber L, Scholze L, Fuchs D, Wagner C, Stainer M, Grillari J, Kubin A, Wightman L, Dungel P. The Multifaceted Actions of PVP-Curcumin for Treating Infections. Int J Mol Sci 2024; 25:6140. [PMID: 38892328 PMCID: PMC11172534 DOI: 10.3390/ijms25116140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 05/23/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Curcumin is a natural compound that is considered safe and may have potential health benefits; however, its poor stability and water insolubility limit its therapeutic applications. Different strategies aim to increase its water solubility. Here, we tested the compound PVP-curcumin as a photosensitizer for antimicrobial photodynamic therapy (aPDT) as well as its potential to act as an adjuvant in antibiotic drug therapy. Gram-negative E. coli K12 and Gram-positive S. capitis were subjected to aPDT using various PVP-curcumin concentrations (1-200 µg/mL) and 475 nm blue light (7.5-45 J/cm2). Additionally, results were compared to aPDT using 415 nm blue light. Gene expression of recA and umuC were analyzed via RT-qPCR to assess effects on the bacterial SOS response. Further, the potentiation of Ciprofloxacin by PVP-curcumin was investigated, as well as its potential to prevent the emergence of antibiotic resistance. Both bacterial strains were efficiently reduced when irradiated with 415 nm blue light (2.2 J/cm2) and 10 µg/mL curcumin. Using 475 nm blue light, bacterial reduction followed a biphasic effect with higher efficacy in S. capitis compared to E. coli K12. PVP-curcumin decreased recA expression but had limited effect regarding enhancing antibiotic treatment or impeding resistance development. PVP-curcumin demonstrated effectiveness as a photosensitizer against both Gram-positive and Gram-negative bacteria but did not modulate the bacterial SOS response.
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Affiliation(s)
- Magdalena Metzger
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria
| | - Stefan Manhartseder
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Leonie Krausgruber
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Lea Scholze
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - David Fuchs
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Carina Wagner
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Michaela Stainer
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Johannes Grillari
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria
| | - Andreas Kubin
- Planta Naturstoffe Vertriebs GmbH, 1230 Vienna, Austria
| | | | - Peter Dungel
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
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2
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Chang AJBA, de Barros Pinto EAF, Silva DR, David AC, de Matos LP, Marcos RL, Silva Junior JA, Zamuner SR. Photobiomodulation in promoting increased Skin Flap Viability: a systematic review of animal studies. Lasers Med Sci 2024; 39:109. [PMID: 38649643 DOI: 10.1007/s10103-024-04055-6] [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: 08/21/2023] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
Necrosis is common in skin flap surgeries. Photobiomodulation, a noninvasive and effective technique, holds the potential to enhance microcirculation and neovascularization. As such, it has emerged as a viable approach for mitigating the occurrence of skin flap necrosis. The aim of this systematic review was to examine the scientific literature considering the use of photobiomodulation to increase skin-flap viability. The preferred reporting items for systematic reviews and meta-analyses (PRISMA), was used to conducted systematic literature search in the databases PubMed, SCOPUS, Elsevier and, Scielo on June 2023. Included studies investigated skin-flap necrosis employing PBMT irradiation as a treatment and, at least one quantitative measure of skin-flap necrosis in any animal model. Twenty-five studies were selected from 54 original articles that addressed PBMT with low-level laser (LLL) or light-emitting diode (LED) in agreement with the qualifying requirements. Laser parameters varied markedly across studies. In the selected studies, the low-level laser in the visible red spectrum was the most frequently utilized PBMT, although the LED PBMT showed a similar improvement in skin-flap necrosis. Ninety percent of the studies assessing the outcomes of the effects of PBMT reported smaller areas of necrosis in skin flap. Studies have consistently demonstrated the ability of PBMT to improve skin flap viability in animal models. Evidence suggests that PBMT, through enhancing angiogenesis, vascular density, mast cells, and VEGF, is an effective therapy for decrease necrotic tissue in skin flap surgery.
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Affiliation(s)
- Alexandre Jin Bok Audi Chang
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | | | - Deiwet Ribeiro Silva
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Amanda Cabral David
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Leonardo Paroche de Matos
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Rodrigo Labat Marcos
- Postgraduate Program in Medicine Biophotonics, Universidade Nove de Julho, Rua Vergueiro, 235, Liberdade, 01504-000, São Paulo, Brasil
| | - José Antônio Silva Junior
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil
| | - Stella Regina Zamuner
- Postgraduate Program in Medicine, Universidade Nove de Julho, UNINOVE, Rua Vergueiro, 234, Bairro Liberdade, 01504-000, São Paulo, Brasil.
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3
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Sales AFS, Dos Santos Jorge Sousa K, de Souza A, Bonifacio M, Araújo TAT, de Almeida Cruz M, Costa MB, Ribeiro DA, Assis L, Martignago CCS, Rennó AC. Association of a Skin Dressing Made With the Organic Part of Marine Sponges and Photobiomodulation on the Wound Healing in an Animal Model. MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2024; 26:276-287. [PMID: 38441733 DOI: 10.1007/s10126-024-10295-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 02/02/2024] [Indexed: 04/25/2024]
Abstract
The present study aims to characterize and to evaluate the biological effects of a skin dressing manufactured with the organic part of the Chondrilla caribensis marine sponge (called spongin-like collagen (SC)) associated or not to photobiomodulation (PBM) on the skin wound healing of rats. Skin dressings were manufactured with SC and it was characterized using scanning electron microscopy (SEM) and a tensile assay. In order to evaluate its biological effects, an experimental model of cutaneous wounds was surgically performed. Eighteen rats were randomly distributed into three experimental groups: control group (CG): animals with skin wounds but without any treatment; marine collagen dressing group (DG): animals with skin wounds treated with marine collagen dressing; and the marine collagen dressing + PBM group (DPG): animals with skin wounds treated with marine collagen dressing and PBM. Histopathological, histomorphometric, and immunohistochemical evaluations (qualitative and semiquantitative) of COX2, TGFβ, FGF, and VEGF were done. SEM demonstrates that the marine collagen dressing presented pores and interconnected fibers and adequate mechanical strength. Furthermore, in the microscopic analysis, an incomplete reepithelialization and the presence of granulation tissue with inflammatory infiltrate were observed in all experimental groups. In addition, foreign body was identified in the DG and DPG. COX2, TGFβ, FGF, and VEGF immunostaining was observed predominantly in the wound area of all experimental groups, with a statistically significant difference for FGF immunostaining score of DPG in relation to CG. The marine collagen dressing presented adequate physical characteristics and its association with PBM presented favorable biological effects to the skin repair process.
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Affiliation(s)
- Abdias Fernando Simon Sales
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Karolyne Dos Santos Jorge Sousa
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Amanda de Souza
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Mirian Bonifacio
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Tiago Akira Tashiro Araújo
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Matheus de Almeida Cruz
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Márcia Busanello Costa
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Daniel Araki Ribeiro
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Lívia Assis
- Scientific Institute and Technological Department, University Brazil, São Paulo-Itaquera, SP, Brazil
| | - Cintia Cristina Santi Martignago
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil
| | - Ana Cláudia Rennó
- Department of Biosciences, Federal University of São Paulo (UNIFESP), Lab 342, Rua Silva Jardim 136, Vila Matias, 136 Silva Jardim Street, Santos, SP, 11015020, Brazil.
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4
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Murugan NJ, Cariba S, Abeygunawardena S, Rouleau N, Payne SL. Biophysical control of plasticity and patterning in regeneration and cancer. Cell Mol Life Sci 2023; 81:9. [PMID: 38099951 PMCID: PMC10724343 DOI: 10.1007/s00018-023-05054-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/12/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023]
Abstract
Cells and tissues display a remarkable range of plasticity and tissue-patterning activities that are emergent of complex signaling dynamics within their microenvironments. These properties, which when operating normally guide embryogenesis and regeneration, become highly disordered in diseases such as cancer. While morphogens and other molecular factors help determine the shapes of tissues and their patterned cellular organization, the parallel contributions of biophysical control mechanisms must be considered to accurately predict and model important processes such as growth, maturation, injury, repair, and senescence. We now know that mechanical, optical, electric, and electromagnetic signals are integral to cellular plasticity and tissue patterning. Because biophysical modalities underly interactions between cells and their extracellular matrices, including cell cycle, metabolism, migration, and differentiation, their applications as tuning dials for regenerative and anti-cancer therapies are being rapidly exploited. Despite this, the importance of cellular communication through biophysical signaling remains disproportionately underrepresented in the literature. Here, we provide a review of biophysical signaling modalities and known mechanisms that initiate, modulate, or inhibit plasticity and tissue patterning in models of regeneration and cancer. We also discuss current approaches in biomedical engineering that harness biophysical control mechanisms to model, characterize, diagnose, and treat disease states.
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Affiliation(s)
- Nirosha J Murugan
- Department of Health Sciences, Wilfrid Laurier University, Waterloo, ON, Canada.
- Allen Discovery Center, Tufts University, Medford, MA, USA.
| | - Solsa Cariba
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | | | - Nicolas Rouleau
- Department of Health Sciences, Wilfrid Laurier University, Waterloo, ON, Canada
- Allen Discovery Center, Tufts University, Medford, MA, USA
- Department of Biomedical Engineering, Tufts University, Medford, MA, USA
| | - Samantha L Payne
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
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5
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Albaqami M, Aguida B, Pourmostafa A, Ahmad M, Kishore V. Photobiomodulation effects of blue light on osteogenesis are induced by reactive oxygen species. Lasers Med Sci 2023; 39:5. [PMID: 38091111 DOI: 10.1007/s10103-023-03951-7] [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: 09/11/2023] [Accepted: 12/05/2023] [Indexed: 12/18/2023]
Abstract
Blue light-mediated photobiomodulation (PBM) is a promising approach to promote osteogenesis. However, the underlying mechanisms of PBM in osteogenesis are poorly understood. In this study, a human osteosarcoma cell line (i.e., Saos-2 cells) was subjected to intermittent blue light exposure (2500 µM/m2/s, 70 mW/cm2, 4.2 J/cm2, once every 48 h) and the effects on Saos-2 cell viability, metabolic activity, differentiation, and mineralization were investigated. In addition, this study addressed a possible role of blue light induced cellular oxidative stress as a mechanism for enhanced osteoblast differentiation and mineralization. Results showed that Saos-2 cell viability and metabolic activity were maintained upon blue light exposure compared to unilluminated controls, indicating no negative effects. To the contrary, blue light exposure significantly increased (p < 0.05) alkaline phosphatase activity and Saos-2 cell mediated mineralization. High-performance liquid chromatography (HPLC) assay was used for measurement of reactive oxygen species (ROS) activity and showed a significant increase (p < 0.05) in superoxide (O2•-) and hydrogen peroxide (H2O2) formed after blue light exposure. Together, these results suggest that the beneficial effects of blue light-mediated PBM on osteogenesis may be induced by controlled release of ROS.
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Affiliation(s)
- Maria Albaqami
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 W. University Blvd, Melbourne, FL, 32901, USA
| | - Blanche Aguida
- UMR8256, CNRS, IBPS, Sorbonne, Université, Paris, France
| | - Ayda Pourmostafa
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 W. University Blvd, Melbourne, FL, 32901, USA
| | - Margaret Ahmad
- UMR8256, CNRS, IBPS, Sorbonne, Université, Paris, France
| | - Vipuil Kishore
- Department of Biomedical and Chemical Engineering and Sciences, Florida Institute of Technology, 150 W. University Blvd, Melbourne, FL, 32901, USA.
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de Alencar Fernandes Neto J, Simões TMS, de Oliveira TKB, Dos Santos Pereira J, Nonaka CFW, de Vasconcelos Catão MHC. Effects of photobiomodulation with blue Light Emitting Diode (LED) on the healing of skin burns. Lasers Med Sci 2023; 38:275. [PMID: 37993749 DOI: 10.1007/s10103-023-03929-5] [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: 07/12/2023] [Accepted: 10/30/2023] [Indexed: 11/24/2023]
Abstract
The management of skin burns is still challenging. Among the therapeutic methods used, there are topical treatments with pharmacological and herbal agents, low-intensity therapeutic ultrasound, use of biomaterials, reconstructive techniques and photobiomodulation therapy. The aim of this study was to evaluate the effects of photobiomodulation with blue Light Emitting Diode (LED) on burn healing. Fifty Wistar rats were divided into control (CTRL) (n = 25) and blue LED (LED) (n = 25), with subgroups (n = 5) for each time of euthanasia (7, 14, 21, 28 and 32 days). Treated animals were daily irradiated (470 nm, 1W, 0.44 W/cm2, 50 J/cm2). Clinical evaluations were performed and the Wound Retraction Index (WRI) was determined. Histological sections were submitted to hematoxylin-eosin, toluidine blue and the immunohistochemical technique, with anti-α-SMA and anti-TGF-β1 antibodies. All data were directly collected by previously calibrated evaluators in a blind manner. The values were included in a statistical program. For all statistical tests used, 5% significance level (p < 0.05) was considered. No statistically significant differences in WRI between groups were observed (p > 0.05). Re-epithelialization was higher using LED at 7 and 14 days (p < 0.05) and greater amount of inflammatory cells was observed at 7 days (p = 0.01). With LED at 21 and 32 days, greater number of mast cells were observed (p < 0.05), as well as smaller number of myofibroblasts at 14, 21, 28 and 32 days (p < 0.05) and lower percentage of TGF-β1 positive cells in the conjunctiva at 7, 14 and 21 days (p < 0.05). Negative correlations were observed in LED between the percentage of TGF-β1 in the epithelium and the mean number of inflammatory cells and number of myofibroblasts (p < 0.05). The results suggest that, depending on the period, blue LED can modulate the healing processes of third-degree skin burns, such as re-epithelialization, inflammatory response, mast cell concentration, myofibroblast differentiation and TGF-β1 immunoexpression. Despite these effects, this therapy does not seem to have significant influence on the retraction of these wounds. Future studies, using different protocols, should be carried out to expand the knowledge about the photobiomodulatory mechanisms of this type of light in the healing process.
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Affiliation(s)
- José de Alencar Fernandes Neto
- Graduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 531, Bodocongó, Campina Grande, PB, 58429-500, Brazil
| | - Thamyres Maria Silva Simões
- Graduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 531, Bodocongó, Campina Grande, PB, 58429-500, Brazil
| | - Tharcia Kiara Beserra de Oliveira
- Faculty of Medical Sciences, University Center UniFacisa, Av. Sen. Argemiro de Figueiredo, 1901, Itararé, Campina Grande, PB, 58411-020, Brazil
| | - Joabe Dos Santos Pereira
- Department of Pathology, Federal University of Rio Grande do Norte, R. General Gustavo Cordeiro de Faria, s/n, Petrópolis, Natal, RN, 59012-570, Brazil
| | - Cassiano Francisco Weege Nonaka
- Graduate Program in Dentistry, State University of Paraiba, R. Baraúnas, 531, Bodocongó, Campina Grande, PB, 58429-500, Brazil
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7
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Sipion M, Ferreira FM, Scholler J, Brana C, Gora M, Kouvas G, Barthet G, Sobolewski A. A randomized, blinded study of photobiomodulation in a mouse model of Alzheimer's disease showed no preventive effect. Sci Rep 2023; 13:19828. [PMID: 37963979 PMCID: PMC10645933 DOI: 10.1038/s41598-023-47039-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/08/2023] [Indexed: 11/16/2023] Open
Abstract
Photobiomodulation (PBM), the process of exposing tissue to red or near-infrared light, has become a topic of great interest as a therapy for diverse pathologies, including neurodegenerative disorders. Here, we aimed to evaluate the potential beneficial effect of PBM on Alzheimer's disease (AD) using behavioral and histological readouts from a well-established transgenic murine AD model (5xFAD mice) in a randomized and fully blinded long-term in-vivo study following GLP (Good Laboratory Practices) guidelines. The heads of the mice were illuminated with no (sham), low or high power 810 nm light, three times a week for 5 months from the first to the sixth month of life corresponding to the prodromal phase of the pathology. The results showed that there were no significant differences between the groups in behavioral tests, including the Morris water maze, novel object recognition, and Y-maze. Similarly, histological analyses showed no differences in amyloid load, neuronal loss or microglial response. In conclusion, under the conditions of our experiment, we were unable to demonstrate any therapeutic effect of PBM for AD. This study calls for further evidence and caution when considering PBM as an effective treatment for AD.
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Affiliation(s)
- Mélanie Sipion
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland
| | - Filipa M Ferreira
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland
| | - Jules Scholler
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland
| | - Corinne Brana
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland
| | - Michalina Gora
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland
| | - George Kouvas
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland
| | - Gael Barthet
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland.
| | - Aleksander Sobolewski
- Wyss Center for Bio and Neuro Engineering, Chemin des Mines 9, 1202, Geneva, Switzerland.
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Song S, Hong H, Kim KY, Kim KK, Kim J, Won D, Yun S, Choi J, Ryu YI, Lee K, Park J, Kang J, Bang J, Seo H, Kim YC, Lee D, Lee H, Lee J, Hwang SW, Ko SH, Jeon H, Lee W. Photothermal Lithography for Realizing a Stretchable Multilayer Electronic Circuit Using a Laser. ACS NANO 2023; 17:21443-21454. [PMID: 37857269 DOI: 10.1021/acsnano.3c06207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Photolithography is a well-established fabrication method for realizing multilayer electronic circuits. However, it is challenging to adopt photolithography to fabricate intrinsically stretchable multilayer electronic circuits fully composed of an elastomeric matrix, due to the opacity of thick stretchable nanocomposite conductors. Here, we present photothermal lithography that can pattern elastomeric conductors and via holes using pulsed lasers. The photothermal-patterned stretchable nanocomposite conductor exhibits 3 times higher conductivity (5940 S cm-1) and 5 orders of magnitude lower resistance change (R/R0 = 40) under a 30% strained 5000th cyclic stretch, compared to those of a screen-printed conductor, based on the percolation network formed by spatial heating of the laser. In addition, a 50 μm sized stretchable via holes can be patterned on the passivation without material ablation and electrical degradation of the bottom conductor. By repeatedly patterning the conductor and via holes, highly conductive and durable multilayer circuits can be stacked with layer-by-layer material integration. Finally, a stretchable wireless pressure sensor and passive matrix LED array are demonstrated, thus showing the potential for a stretchable multilayer electronic circuit with durability, high density, and multifunctionality.
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Affiliation(s)
- Sangmin Song
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyejun Hong
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Kyung Yeun Kim
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Kyun Kyu Kim
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Jaewoo Kim
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Daeyeon Won
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Soyoung Yun
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Joonhwa Choi
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Young-In Ryu
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Kyungwoo Lee
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jaeho Park
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Joohyuk Kang
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Junhyuk Bang
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyunseon Seo
- School of Medicine, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yu-Chan Kim
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Daeho Lee
- Department of Mechanical Engineering, Gachon University, Seongnam 13120, Republic of Korea
| | - Haechang Lee
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jinwoo Lee
- Department of Mechanical, Robotics, and Energy Engineering, Dongguk University, Seoul 04620, Republic of Korea
| | - Suk-Won Hwang
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Seung Hwan Ko
- Department of Mechanical Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hojeong Jeon
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Wonryung Lee
- Biomaterials Research Center, Biomedical Research Division, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, University of Science & Technology (UST), Seoul 02792, Republic of Korea
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Kekovic V, Schicho K, Perisanidis C, Mikovic N, Stanimirovic D, Soldatovic I, Sinobad V. Effect of Low-level Light Therapy on Post-operative Healing of Secondary Chronic Osteomyelitis of the Jaws - A Prospective Study. Ann Maxillofac Surg 2023; 13:200-204. [PMID: 38405576 PMCID: PMC10883228 DOI: 10.4103/ams.ams_105_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/20/2023] [Accepted: 10/03/2023] [Indexed: 02/27/2024] Open
Abstract
Introduction Osteomyelitis of the jaws is a common disease of the maxillofacial region. The goal of treatment is to alleviate pain, reduce infection, inhibit the progression of the disease and induce bone and mucosal healing. In addition to surgical management and antibiotic and oxygen hyperbaric therapy, new therapeutic strategies for the treatment of osteomyelitis are developed. One of the novel approaches is photobiomodulation therapy or low-level light therapy (LLLT). Materials and Methods After surgical treatment, experimental group patients (n = 4) were treated with LLLT for five sessions with an extraoral pulsed 635-nm LED lamp (Repuls7, Repuls Lichtmedizintechnik GmbH, Austria), maximum output power: 140 mW/cm2, frequency: 2.5 Hz, duty cycle: 50%. Clinical achievement and patient pain perception (through Visual Analogue Scale score) were evaluated at 1-, 3- and 6-month follow-up appointments and compared with control group (n = 4) patients, treated with standard therapy. Results At three and six months, clinical achievement was better in patients treated with LLLT. Pain and discomfort resolution was significantly greater in the experimental group. Discussion Taking into consideration the results of this study, it can be concluded that LLLT shows potential for improving clinical outcome of surgical and medical treatment of secondary chronic osteomyelitis of the jaws. Furthermore, pain and discomfort were significantly reduced in patients treated with LLLT. Further research with a larger sample size is needed to obtain a more accurate insight into this promising field.
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Affiliation(s)
- Vladan Kekovic
- Department of Maxillofacial Surgery, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia
| | - Kurt Schicho
- Department of Cranio-Maxillofacial Surgery, AKH University Hospital, Vienna, Austria
| | - Christos Perisanidis
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Athens, Greece
| | - Nikola Mikovic
- Department of Maxillofacial Surgery, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia
| | - Dragan Stanimirovic
- Department of Periodontics and Oral Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivan Soldatovic
- Department of Biomedical Statistics, University of Belgrade, Belgrade, Serbia
| | - Vladimir Sinobad
- Department of Maxillofacial Surgery, Faculty of Dentistry, University of Belgrade, Belgrade, Serbia
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Dungel P, Sutalo S, Slezak C, Keibl C, Schädl B, Schnidar H, Metzger M, Meixner B, Hartmann J, Oesterreicher J, Redl H, Slezak P. Wavelength-Dependent Effects of Photobiomodulation for Wound Care in Diabetic Wounds. Int J Mol Sci 2023; 24:ijms24065895. [PMID: 36982967 PMCID: PMC10054229 DOI: 10.3390/ijms24065895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 03/05/2023] [Accepted: 03/10/2023] [Indexed: 03/30/2023] Open
Abstract
Photobiomodulation, showing positive effects on wound healing processes, has been performed mainly with lasers in the red/infrared spectrum. Light of shorter wavelengths can significantly influence biological systems. This study aimed to evaluate and compare the therapeutic effects of pulsed LED light of different wavelengths on wound healing in a diabetic (db/db) mouse excision wound model. LED therapy by Repuls was applied at either 470 nm (blue), 540 nm (green) or 635 nm (red), at 40 mW/cm2 each. Wound size and wound perfusion were assessed and correlated to wound temperature and light absorption in the tissue. Red and trend-wise green light positively stimulated wound healing, while blue light was ineffective. Light absorption was wavelength-dependent and was associated with significantly increased wound perfusion as measured by laser Doppler imaging. Shorter wavelengths ranging from green to blue significantly increased wound surface temperature, while red light, which penetrates deeper into tissue, led to a significant increase in core body temperature. In summary, wound treatment with pulsed red or green light resulted in improved wound healing in diabetic mice. Since impeded wound healing in diabetic patients poses an ever-increasing socio-economic problem, LED therapy may be an effective, easily applied and cost-efficient supportive treatment for diabetic wound therapy.
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Affiliation(s)
- Peter Dungel
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Sanja Sutalo
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Cyrill Slezak
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Department of Physics, Utah Valley University, Orem, UT 84058, USA
| | - Claudia Keibl
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Barbara Schädl
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | | | - Magdalena Metzger
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Barbara Meixner
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Jaana Hartmann
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Johannes Oesterreicher
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Paul Slezak
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1210 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
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11
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Prado TP, Zanchetta FC, Barbieri B, Aparecido C, Melo Lima MH, Araujo EP. Photobiomodulation with Blue Light on Wound Healing: A Scoping Review. Life (Basel) 2023; 13:life13020575. [PMID: 36836932 PMCID: PMC9959862 DOI: 10.3390/life13020575] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
BACKGROUND Photobiomodulation consists of inducing healing by irradiating light. This scoping review investigates the effect of blue light on the healing process. METHODS The MEDLINE, Web of Science, Scopus, and CINAHL databases were searched. Two reviewers independently examined the search results and extracted data from the included studies. A descriptive analysis was performed. RESULTS Twenty-two articles were included. Studies were categorized as in vitro/mixed, preclinical, and clinical. The power density used was 10-680 mW/cm2 in most of the in vitro/preclinical studies, the irradiation time ranged from 5 s to 10 min, and different wavelengths and energy densities were used. In clinical studies, the wavelength ranged from 405 to 470 nm, and the energy density varied from 1.5 to 30 J/cm2. CONCLUSIONS A low energy density (<20 J/cm2) was able to stimulate the different cell types and proteins involved in healing, while a high energy density, 20.6-50 J/cm2, significantly reduced cell proliferation, migration, and metabolism. There is a great variety of device parameters among studies, and this makes it difficult to conclude what the best technical specifications are. Thus, further studies should be performed in order to define the appropriate parameters of light to be used.
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Affiliation(s)
- Thais P. Prado
- School of Nursing, University of Campinas (Unicamp), Campinas 13083-887, Brazil
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas 13083-864, Brazil
| | - Flávia Cristina Zanchetta
- School of Nursing, University of Campinas (Unicamp), Campinas 13083-887, Brazil
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas 13083-864, Brazil
| | - Beatriz Barbieri
- School of Nursing, University of Campinas (Unicamp), Campinas 13083-887, Brazil
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas 13083-864, Brazil
| | - Caroline Aparecido
- School of Nursing, University of Campinas (Unicamp), Campinas 13083-887, Brazil
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas 13083-864, Brazil
| | - Maria Helena Melo Lima
- School of Nursing, University of Campinas (Unicamp), Campinas 13083-887, Brazil
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas 13083-864, Brazil
| | - Eliana P. Araujo
- School of Nursing, University of Campinas (Unicamp), Campinas 13083-887, Brazil
- Laboratory of Cell Signaling, Obesity and Comorbidities Research Center, University of Campinas, Campinas 13083-864, Brazil
- Correspondence:
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12
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Low-Dose Blue Light (420 nm) Reduces Metabolic Activity and Inhibits Proliferation of Human Dermal Fibroblasts. Life (Basel) 2023; 13:life13020331. [PMID: 36836688 PMCID: PMC9965217 DOI: 10.3390/life13020331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Hypertrophic scarring in burn wounds is caused by overactive fibroblasts and myofibroblasts. Blue light reveals wavelength- and dose-dependent antibacterial and antiproliferative effects and may serve as a therapeutic option against wound infection and fibrotic conditions. Therefore, we evaluated in this study the effects of single and multiple irradiations with blue light at 420 nm (BL420) on the intracellular ATP concentration, and on the viability and proliferation of the human skin fibroblast (HDFs). In addition, possible BL420-induced effects on the catalase expression and differentiation were assessed by immunocytochemical staining and western blot analyses. Furthermore, we used RNA-seq analyses to identify BL420-affected genes. We found that BL420 induced toxicity in HDFs (up to 83%; 180 J/cm2). A low dose of 20 J/cm2 reduced the ATP concentration by ~50%. Multiple irradiations (4 × 20 J/cm2) inhibited proliferation without visible toxicity and reduced catalase protein expression by ~37% without affecting differentiation. The expression of about 300 genes was significantly altered. Many downregulated genes have functions in cell division/mitosis. BL420 can strongly influence the fibroblast physiology and has potential in wound therapy. However, it is important to consider the possible toxic and antiproliferative effects, which could potentially lead to impaired wound healing and reduced scar breaking strength.
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13
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Busanello-Costa M, Renno ACM, de Goes Santos CP, Quintana HT, Martignago CCS, Tim CR, Assis L. Red LED light therapy associated with epidermal growth factor on wound repair process in rats. Lasers Med Sci 2023; 38:36. [PMID: 36626000 DOI: 10.1007/s10103-022-03701-1] [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: 09/28/2021] [Accepted: 12/29/2022] [Indexed: 01/11/2023]
Abstract
Epidermal growth factor (EGF) and light-emitting diode (LED) are currently deployed as promissory treatments for skin repair; however, the mechanisms of their association are not yet evidenced. Thus, the present study aimed to evaluate the effects of combined treatment with EGF and red LED on the wound healing processes in rats. Adult Wistar rats were randomized in control group (CG) wounds without treatment; wounds submitted to EGF treatment (EGF); wounds submitted to LED treatment (LED); wounds submitted to EGF associated with LED treatments (EGF/LED). Treatments were performed immediately after the surgical procedure and each 24 h, totaling 8 sessions. Moreover, LED was applied before EGF treatment at a single point in the center of the wound. Morphological characteristics and the immunoexpression of COX-2, VEGF, and TGF-β were measured. The results demonstrated that EGF/LED group presented a higher wound healing index. Additionally, all experimental groups presented similar findings in the histological evaluation, the degree of inflammation, and the area of dermis-like tissue. However, for EGF-treated animals (with or without LED), neoepithelial length was higher. Furthermore, all the treated groups decreased COX-2 and increased VEGF immunoexpression, and only EGF/LED group enhanced the TGF-β protein expression when compared to the untreated group. This research shows that EGF and LED modulate inflammatory process and increase the vascularity. In addition, treatment of EGF associated with LED promoted a more evident positive effect for increasing TGF-β expression and may be promising resources in the clinical treatment of cutaneous wounds.
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Affiliation(s)
- Márcia Busanello-Costa
- Department of Biosciences, Federal University of São Paulo, 136, Silva Jardim Street, Santos, SP, 11015-020, Brazil
| | - Ana Claudia Muniz Renno
- Department of Biosciences, Federal University of São Paulo, 136, Silva Jardim Street, Santos, SP, 11015-020, Brazil
| | | | - Hananiah Tardivo Quintana
- Department of Biosciences, Federal University of São Paulo, 136, Silva Jardim Street, Santos, SP, 11015-020, Brazil
| | - Cintia Cristina Santi Martignago
- Department of Biosciences, Federal University of São Paulo, 136, Silva Jardim Street, Santos, SP, 11015-020, Brazil
- Department of Physiotherapy, Federal University of São Carlos, São Carlos, SP, Brazil
| | - Carla Roberta Tim
- Scientific Institute and Technological Department-University Brazil, São Paulo-Itaquera, SP, Brazil
| | - Lívia Assis
- Department of Biosciences, Federal University of São Paulo, 136, Silva Jardim Street, Santos, SP, 11015-020, Brazil.
- Scientific Institute and Technological Department-University Brazil, São Paulo-Itaquera, SP, Brazil.
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14
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Oyebode OA, Jere SW, Houreld NN. Current Therapeutic Modalities for the Management of Chronic Diabetic Wounds of the Foot. J Diabetes Res 2023; 2023:1359537. [PMID: 36818748 PMCID: PMC9937766 DOI: 10.1155/2023/1359537] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/12/2023] Open
Abstract
Impaired wound healing is common in patients with diabetes mellitus (DM). Different therapeutic modalities including wound debridement and dressing, transcutaneous electrical nerve stimulation (TENS), nanomedicine, shockwave therapy, hyperbaric (HBOT) and topical (TOT) oxygen therapy, and photobiomodulation (PBM) have been used in the management of chronic diabetic foot ulcers (DFUs). The selection of a suitable treatment method for DFUs depends on the hosts' physiological status including the intricacy and wound type. Effective wound care is considered a critical component of chronic diabetic wound management. This review discusses the causes of diabetic wounds and current therapeutic modalities for the management of DFUs, specifically wound debridement and dressing, TENS, nanomedicine, shockwave therapy, HBOT, TOT, and PBM.
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Affiliation(s)
- Olajumoke Arinola Oyebode
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, South Africa 2028
| | - Sandy Winfield Jere
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, South Africa 2028
| | - Nicolette Nadene Houreld
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, South Africa 2028
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15
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Gong C, Lu Y, Jia C, Xu N. Low-level green laser promotes wound healing after carbon dioxide fractional laser therapy. J Cosmet Dermatol 2022; 21:5696-5703. [PMID: 35947511 DOI: 10.1111/jocd.15298] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/21/2022] [Accepted: 08/08/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND The carbon dioxide (CO2 ) fractional laser resurfacing has become one of the hottest therapies for dermatoses. However, complications such as skin swelling, prolonged erythema, post-inflammatory hyperpigmentation, and scar formation remain. Low-level laser (LLL) therapy is accepted to promote skin wound healing and regeneration, decrease inflammation and pain, and modulate immunoreaction with low-dose laser of different wavelength. 532 nm laser therapy is commonly used to remove pigmented spots and to tender skin, but not utilized in wound care. OBJECTIVE We aimed to determine the efficacy of the low-level 532 nm green laser in wound healing after CO2 fractional laser. METHODS Six adult male mice (C57BL/6, 8 weeks old) were prepared for animal experiments. The dorsum of each mouse was divided into four parts that, respectively, received designed treatments, as controlled (group Ctrl), 532 nm LLL-treated (group GL), CO2 fractional laser-treated (group FL), and CO2 fractional laser followed by three times 532 nm LLL-treated (group FG). Hematoxylin-eosin staining (H&E), Masson-trichrome staining, CD31 immunohistochemical staining were performed to evaluate the efficacy of wound healing after treated by different irradiations. Western blotting was used to detect the expression of related proteins. Mouse skin fibroblasts (MSFs) were treated with LLL using a wavelength of 532 nm once. Cellular responses were observed and analyzed after 48 hours. Cell viability and migration of different groups were assessed by scratch and the Cell Counting Kit-8 (CCK8) assays, respectively. RESULTS Collagen remodeling and epidermis thickness were significantly enhanced in group FG than that in group FL in morphology. Besides, CD31 immunohistochemical staining indicated prominently increased angiogenesis in both groups FL and FG than non-irradiation group. The expression of extracellular matrix (ECM)-related protein (Col1, Col3 and MMP1) showed a remarkable improvement in wound healing in group FG than that in group FL. Irradiated MSFs showed a better migration ability compared with non-irradiated controls. LLL enhanced the secretion function of MSFs on Collagen I and III. CONCLUSIONS Low-level green laser promotes wound healing after CO2 fractional laser by improving the integrity of skin barrier and allowing for scarless healing. Therefore, low-level green laser therapy might serve as a sequential therapy of invasive laser surgery to ensure a better wound care.
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Affiliation(s)
- Chengchen Gong
- Department of Dermatology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yongzhou Lu
- Department of Dermatology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chuanlong Jia
- Department of Dermatology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Nan Xu
- Department of Dermatology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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16
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Metzger M, Hacobian A, Karner L, Krausgruber L, Grillari J, Dungel P. Resistance of Bacteria toward 475 nm Blue Light Exposure and the Possible Role of the SOS Response. Life (Basel) 2022; 12:1499. [PMID: 36294934 PMCID: PMC9605056 DOI: 10.3390/life12101499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2023] Open
Abstract
The increase in antibiotic resistance represents a major global challenge for our health systems and calls for alternative treatment options, such as antimicrobial light-based therapies. Blue light has shown promising results regarding the inactivation of a variety of microorganisms; however, most often, antimicrobial blue light (aBL) therapy is performed using wavelengths close to the UV range. Here we investigated whether inactivation was possible using blue light with a wavelength of 475 nm. Both Gram-positive and -negative bacterial strains were treated with blue light with fluences of 7.5-45 J/cm2. Interestingly, only some bacterial strains were susceptible to 475 nm blue light, which was associated with the lack of RecA, i.e., a fully functional DNA repair mechanism. We demonstrated that the insertion of the gene recA reduced the susceptibility of otherwise responsive bacterial strains, indicating a protective mechanism conveyed by the bacterial SOS response. However, mitigating this pathway via three known RecA inhibiting molecules (ZnAc, curcumin, and Fe(III)-PcTs) did not result in an increase in bactericidal action. Nonetheless, creating synergistic effects by combining a multitarget therapy, such as aBL, with an RecA targeting treatment could be a promising strategy to overcome the dilemma of antibiotic resistance in the future.
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Affiliation(s)
- Magdalena Metzger
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria
| | - Ara Hacobian
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Lisa Karner
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Leonie Krausgruber
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
| | - Johannes Grillari
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
- Institute of Molecular Biotechnology, University of Natural Resources and Life Sciences, 1190 Vienna, Austria
| | - Peter Dungel
- Ludwig Boltzmann Institute for Traumatology, The Research Center in Cooperation with AUVA, 1200 Vienna, Austria
- Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria
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17
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Increasing angiogenic efficacy of conditioned medium using light stimulation of human adipose-derived stem cells. Commun Biol 2022; 5:957. [PMID: 36100628 PMCID: PMC9470574 DOI: 10.1038/s42003-022-03838-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 08/12/2022] [Indexed: 11/13/2022] Open
Abstract
Conditioned medium (CM) contains various therapeutic molecules produced by cells. However, the low concentration of therapeutic molecules in CM is a major challenge for successful tissue regeneration. Here, we aim to develop a CM enriched in angiogenic paracrine factors for the treatment of ischemic diseases. Combining spheroidal culture and light irradiation significantly upregulates the angiogenic factor expression in human adipose-derived stem cells (hADSCs). Spheroids of light-irradiated hADSCs (SR group) show significantly enhanced expression of angiogenic paracrine factors compared with spheroids without light stimulation. Enhanced viability, migration, and angiogenesis are observed in cells treated with CM derived from the SR group. Furthermore, we performed in vivo experiments using a mouse hindlimb ischemia model; the results demonstrate that CM derived from densely cultured spheroids of light-irradiated hADSCs induced increased angiogenesis in vivo. In conclusion, our proposed approach of using light to stimulate stem cells may overcome the major drawbacks of CM-based therapies. Combining spheroidal culture of human adipose-derived stem cells with light irradiation enhances angiogenic growth factor secretion in conditioned media, which can improve angiogenesis in a mouse hindlimb ischemia model.
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18
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McMullan P, White AB, Coker O, Opal S, McGee SA, Rogers G. Antimicrobial Efficacy of Continuous Low-Irradiance Phototherapy Against Multidrug-Resistant Organisms. Photobiomodul Photomed Laser Surg 2022; 40:613-621. [DOI: 10.1089/photob.2022.0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Patrick McMullan
- University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Alexander B. White
- University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Oluwadara Coker
- Department of Translational Genomics and Precision Medicine, MD Anderson Cancer Center, Houston, Texas, USA
| | - Steven Opal
- Department of Medicine, Section of Infectious Diseases, Infectious Disease Division at Brown University Warren Alpert Medical School, Pawtucket, Rhode Island, USA
| | - Shayan A. McGee
- Department of Surgery, Dartmouth Hitchcock Medical Center, Hanover, New Hampshire
| | - Gary Rogers
- Departments of Surgery and Dermatology, Tufts University School of Medicine, Beverly, Massachusetts, USA
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19
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Besser M, Schaeler L, Plattfaut I, Brill FHH, Kampe A, Geffken M, Smeets R, Debus ES, Stuermer EK. Pulsed low-intensity laser treatment stimulates wound healing without enhancing biofilm development in vitro. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 233:112504. [PMID: 35777177 DOI: 10.1016/j.jphotobiol.2022.112504] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 03/14/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES Treating infected or chronic wounds burdened with biofilms still is a major challenge in medical care. Healing-stimulating factors lose their efficacy due to bacterial degradation, and antimicrobial substances negatively affect dermal cells. Therefore, alternative treatment approaches like the pulsed low intensity laser therapy (LILT) require consideration. METHODS The effect of pulsed LILT (904 nm, in three frequencies) on relevant human cells of the wound healing process (fibroblasts (BJ), keratinocytes (HaCaT), endothelial cells (HMEC), monocytes (THP-1)) were investigated in in-vitro and ex-vivo wound models with respect to viability, proliferation and migration. Antimicrobial efficacy of the most efficient frequency in cell biological analyses of LILT (3200 Hz) was determined in a human biofilm model (lhBIOM). Quantification of bacterial load was evaluated by suspension method and qualitative visualization was performed by scanning electron microscopy (SEM). RESULTS Pulsed LILT at 904 nm at 3200 Hz ± 50% showed the most positive effects on metabolic activity and proliferation of human wound cells in vitro (after 72 h - BJ: BPT 0.97 ± 0.05 vs. 0.75 ± 0.04 (p = 0.0283); HaCaT: BPT 0.79 ± 0.04 vs. 0.59 ± 0.02 (p = 0.0106); HMEC: 0.74 ± 0.02 vs. 0.52 ± 0.04 (p = 0.009); THP-1: 0.58 ± 0.01 vs. 0.64 ± 0.01 (p > 0.05) and ex vivo. Interestingly, re-epithelialization was stimulated in a frequency-independent manner. The inhibition of metabolic activity after TNF-α application was abolished after laser treatment. No impact of LILT on monocytes was detected. Likewise, the tested LILT regimens showed no growth rate reducing effects on three bacterial strains (after 72 h - PA: -1.03%; SA: -0.02%; EF: -1,89%) and one fungal (-2.06%) biofilm producing species compared to the respective untreated control. Accordingly, no significant morphological changes of the biofilms were observed after LILT treatment in the SEM. CONCLUSIONS Frequent application of LILT (904 nm, 3200 Hz) seems to be beneficial for the metabolism of human dermal cells during wound healing. Considering this, the lack of disturbance of the behavior of the immune cells and no growth-inducing effect on bacteria and fungi in the biofilm can be assigned as rather positive. Based on this combined mode of action, LILT may be an option for hard to heal wounds infected with persistent biofilms.
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Affiliation(s)
- Manuela Besser
- Clinic for General, Visceral and Transplant Surgery, University Hospital Muenster, Germany
| | - Lukas Schaeler
- Institute of Virology and Microbiology, Faculty of Health, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Germany
| | - Isabell Plattfaut
- Institute of Virology and Microbiology, Faculty of Health, Centre for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Germany
| | - Florian H H Brill
- Dr. Brill + Partner GmbH, Institute for Hygiene and Microbiology, Hamburg, Germany
| | - Andreas Kampe
- Dr. Brill + Partner GmbH, Institute for Hygiene and Microbiology, Hamburg, Germany
| | - Maria Geffken
- Institute for Transfusion Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Germany
| | - E Sebastian Debus
- Dpt. of Vascular Medicine, University Heart Center, University Medical Center Hamburg-Eppendorf (UKE), Germany
| | - Ewa K Stuermer
- Dpt. of Vascular Medicine, University Heart Center, University Medical Center Hamburg-Eppendorf (UKE), Germany.
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20
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Lv Y, Chen Z, Yang Z, Yang W, Chu W, Tu Y, Xie J, Cao D. Evaluation of the red & blue LED effects on cutaneous refractory wound healing in male Sprague-Dawley rat using 3 different multi-drug resistant bacteria. Lasers Surg Med 2022; 54:725-736. [PMID: 34989417 DOI: 10.1002/lsm.23515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/24/2021] [Accepted: 12/21/2021] [Indexed: 01/23/2023]
Abstract
OBJECTIVES Photobiomodulation (PBM) is widely used in clinical therapy, and is an effective approach to resist the bacterial infection of the cutaneous wound and modulate the wound healing process. Due to the several detriments of lasers, Red & Blue LED light (RBLL) may be a more viable light source. This study is aimed to evaluate and compare the therapeutic effect of RBLL light on different multi-drug resistant (MDR) bacteria in vitro and male Sprague-Dawley (SD) rat refractory MDR infection wound model in vivo. MATERIALS AND METHODS Methicillin-resistant Staphylococcus aureus (MRSA), Extended-spectrum β-lactamases -producing Escherichia coli (ESBLs-Eco), and the MDR Pseudomonas aeruginosa (MDR-Pae) were employed to evaluate the antibacterial effects of the Blue LED light in vitro. Effects of RBLL on in vivo wound healing were evaluated by analyzing time to closure, wound score, semi-quantitative test for bacterial culture, histopathological examination and Masson staining of skin tissue, immunohistochemical (IHC) staining, and western blot analysis (WB) of wound tissue. RESULTS Blue LED light inhibited MRSA, ESBLs-Eco, and MDR-Pae in vitro study. In vivo, RBLL accelerated wound healing, reduced levels of pathogenic bacteria on the wound surface while increasing the blood supply to the wound surface and inhibiting the excessive inflammatory response. CONCLUSION RBLL showed a great potential gain for the treatment of MDR bacterial infected wounds, suggesting PBM therapy is an inexpensive, convenient, pain-free, and safe therapeutic intervention for refractory MDR infection wounds.
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Affiliation(s)
- Yang Lv
- Department of Plastic and Reconstructive Surgery, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
| | - ZengHong Chen
- Department of Plastic and Reconstructive Surgery, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
| | - ZhiGuo Yang
- Department of Plastic and Reconstructive Surgery, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
| | - WenYu Yang
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
| | - WenWen Chu
- Department of Clinical Laboratory, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
| | - YiQian Tu
- Department of Plastic and Reconstructive Surgery, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
| | - Juan Xie
- Department of Plastic and Reconstructive Surgery, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
| | - DongSheng Cao
- Department of Plastic and Reconstructive Surgery, The Second Hospital of Anhui Medical University, Anhui Province, P.R. China
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21
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Park Y, Choi HR, Jeon Y, Kim H, Shin JW, Huh CH, Park KC, Choi KC. Cell proliferation effect of deep-penetrating microcavity tandem NIR OLEDs with therapeutic trend analysis. Sci Rep 2022; 12:10935. [PMID: 35768569 PMCID: PMC9243069 DOI: 10.1038/s41598-022-15197-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 06/20/2022] [Indexed: 11/17/2022] Open
Abstract
Long wavelengths that can deeply penetrate into human skin are required to maximize therapeutic effects. Hence, various studies on near-infrared organic light-emitting diodes (NIR OLEDs) have been conducted, and they have been applied in numerous fields. This paper presents a microcavity tandem NIR OLED with narrow full-width half-maximum (FWHM) (34 nm), high radiant emittance (> 5 mW/cm2) and external quantum efficiency (EQE) (19.17%). Only a few papers have reported on biomedical applications using the entire wavelength range of the visible and NIR regions. In particular, no biomedical application studies have been reported in the full wavelength region using OLEDs. Therefore, it is worth researching the therapeutic effects of using OLED, a next-generation light source, and analyzing trends for cell proliferation effects. Cell proliferation effects were observed in certain wavelength regions when B, G, R, and NIR OLEDs were used to irradiate human fibroblasts. The results of an in-vitro experiment indicated that the overall tendency of wavelengths is similar to that of the cytochrome c oxidase absorption spectrum of human fibroblasts. This is the first paper to report trends in the cell proliferation effects in all wavelength regions using OLEDs.
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Affiliation(s)
- Yongjin Park
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hye-Ryung Choi
- Department of Dermatology, Seoul National University College of Medicine, Seoul National University Bundang Hospital (SNUBH), Seongnam, 13620, Republic of Korea
| | - Yongmin Jeon
- Department of Biomedical Engineering, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, 13120, Gyeonggi-do, Republic of Korea
| | - Hyuncheol Kim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jung Won Shin
- Department of Dermatology, Seoul National University College of Medicine, Seoul National University Bundang Hospital (SNUBH), Seongnam, 13620, Republic of Korea
| | - Chang-Hun Huh
- Department of Dermatology, Seoul National University College of Medicine, Seoul National University Bundang Hospital (SNUBH), Seongnam, 13620, Republic of Korea
| | - Kyoung-Chan Park
- Department of Dermatology, Seoul National University College of Medicine, Seoul National University Bundang Hospital (SNUBH), Seongnam, 13620, Republic of Korea.
| | - Kyung-Cheol Choi
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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22
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Aslam Z, Roome T, Razzak A, Aslam SM, Zaidi MB, Kanwal T, Sikandar B, Bertino MF, Rehman K, Shah MR. Investigation of wound healing potential of photo-active curcumin-ZnO-nanoconjugates in excisional wound model. Photodiagnosis Photodyn Ther 2022; 39:102956. [PMID: 35714899 DOI: 10.1016/j.pdpdt.2022.102956] [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: 03/13/2022] [Revised: 05/23/2022] [Accepted: 06/07/2022] [Indexed: 11/16/2022]
Abstract
Wound healing, being a dynamic process consisting of hemostasis, inflammation, proliferation, and remodeling, involves the complicated interplay of various growth mediators and the cells associated repair system. Current wound healing therapies usually fail to completely regain skin integrity and functionality. Traditionally, curcumin is considered a potent natural wound healing agent as it possesses antibacterial, antioxidant, and anti-inflammatory properties. It is also known that zinc oxide (ZnO) nanoparticles (NPs) have photocatalytic properties, including the generation of reactive oxygen species. ZnO nanoaprticles are also Food and Drug Administration (FDA) approved as safe substances. While ZnO oxide requires illumination with ultraviolet light to become photocatalytically active, dye-sensitized ZnO can be activated by illumination with visible light. In the present study, we explored the wound healing potential of ZnO nanoparticles sensitized with curcumin (Cu+ZnO Nps) and illuminated with visible (blue) light generated by an array of high power LEDs. We studied the antibacterial effect of our conjugates by percentage reduction in bacterial growth and biofilm formation. The wound healing potential was analyzed by percentage wound contraction, biochemical parameters, and histopathological analysis of the wounded site. Additionally, angiogenesis and wound associated cytokines was evaluated by immunohistochemistry of CD31 and gene expression analysis of IL-1β, TNF-α, and MMP-9 after 16 days of post-wound treatment, respectively. Our study suggests that the therapeutic effect of Cu+ZnO NPs with LED illumination increases its wound healing potential by producing an antibacterial and anti-inflammatory effect. Moreover, the treatment strategy of using a nano formulation in combination with LED illumination further increases its efficacy. It was concluded that the anti-inflammatory and bactericidal effects of the LED illuminated Cu+ZnO Np showed accelerated wound healing with increased wound contraction, collagen deposition, angiogenesis, and re-epithelialization.
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Affiliation(s)
- Zara Aslam
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
| | - Talat Roome
- Molecular Pathology Section, Dow Diagnostic Reference and Research Laboratory, Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Karachi, 74200, Pakistan; Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Anam Razzak
- Molecular Pathology Section, Dow Diagnostic Reference and Research Laboratory, Department of Pathology, Dow International Medical College, Dow University of Health Sciences, Karachi, 74200, Pakistan; Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Shazmeen Mohammad Aslam
- Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Midhat Batool Zaidi
- Dow Institute of Advanced Biological & Animal Research, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | - Tasmina Kanwal
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
| | - Bushra Sikandar
- Histopathology Section, Department of Pathology, Dow Diagnostic Reference and Research Laboratory, Dow Medical College, Dow University of Health Sciences, Karachi, 74200, Pakistan.
| | | | - Khadija Rehman
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
| | - Muhammad Raza Shah
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, Karachi University, Karachi, 74200, Pakistan.
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23
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Exposure to b-LED Light While Exerting Antimicrobial Activity on Gram-Negative and -Positive Bacteria Promotes Transient EMT-like Changes and Growth Arrest in Keratinocytes. Int J Mol Sci 2022; 23:ijms23031896. [PMID: 35163819 PMCID: PMC8837184 DOI: 10.3390/ijms23031896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 02/01/2023] Open
Abstract
While blue LED (b-LED) light is increasingly being studied for its cytotoxic activity towards bacteria in therapy of skin-related infections, its effects on eukaryotic cells plasticity are less well characterized. Moreover, since different protocols are often used, comparing the effect of b-LED towards both microorganisms and epithelial surfaces may be difficult. The aim of this study was to analyze, in the same experimental setting, both the bactericidal activity and the effects on human keratinocytes. Exposure to b-LED induced an intense cytocidal activity against Gram-positive (i.e, Staphylococcus aureus) and Gram-negative (i.e., Pseudomonas aeruginosa) bacteria associated with catheter-related infections. Treatment with b-LED of a human keratinocyte cell line induced a transient cell cycle arrest. At the molecular level, exposure to b-LED induced a transient downregulation of Cyclin D1 and an upregulation of p21, but not signs of apoptosis. Interestingly, a transient induction of phosphor-histone γ-H2Ax, which is associated with genotoxic damages, was observed. At the same time, keratinocytes underwent a transient epithelial to mesenchymal transition (EMT)-like phenotype, characterized by E-cadherin downregulation and SNAIL/SLUG induction. As a functional readout of EMT induction, a scratch assay was performed. Surprisingly, b-LED treatment provoked a delay in the scratch closure. In conclusion, we demonstrated that b-LED microbicidal activity is associated with complex responses in keratinocytes that certainly deserve further analysis.
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24
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Stepanov YV, Golovynska I, Golovynskyi S, Garmanchuk LV, Gorbach O, Stepanova LI, Khranovska N, Ostapchenko LI, Ohulchanskyy TY, Qu J. Red and near infrared light-stimulated angiogenesis mediated via Ca 2+ influx, VEGF production and NO synthesis in endothelial cells in macrophage or malignant environments. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 227:112388. [PMID: 35074677 DOI: 10.1016/j.jphotobiol.2022.112388] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 01/02/2022] [Accepted: 01/08/2022] [Indexed: 12/19/2022]
Abstract
Irradiation with red or near-infrared (NIR) light in low level light therapy (LLLT) is found to stimulate cellular processes and bioenergetics, resulting in enhanced wound healing, pain control, neurodegenerative diseases treatment, etc. During light irradiation of tissues and organs, different cells are affected, though the connection between photostimulation of cells and their environmental conditions remains poorly understood. In this report, red/NIR light-stimulated angiogenesis is investigated using endothelial cells in vitro, with a focus on the capillary-like structure (CLS) formation and the respective biochemical processes in cells under conditions proximate to a healthy or malignant environment, which strongly defines angiogenesis. To model environmental conditions for endotheliocytes in vitro, the cell culture environment was supplemented by an augmented conditioned medium from macrophages or cancer cells. The biochemical processes in endothelial cell cultures were investigated with and without irradiation by red (650 nm) and near-infrared (808 nm) laser diodes and under normoxia or hypoxia conditions. A light-stimulated angiogenesis has been found, with a more efficient stimulation by 650 nm light compared to 808 nm light. It was shown that the irradiation with light promoted extracellular Ca2+ influx, fostered cell cycle progression, proliferation and NO generation in endothelial cells, and caused an increase in vascular endothelial growth factor (VEGF) production by endothelial cells and M2 macrophages under hypoxia conditions. The activation of VEGF production by macrophages was found to be associated with an increase in the number of M2 macrophages after light irradiation under hypoxia conditions. Thus, a new pathway of an activation of the endothelial cell metabolism, which is related with the extracellular Ca2+ influx after light irradiation, has been revealed. STATEMENT OF SIGNIFICANCE: Red/NIR light-stimulated angiogenesis has been studied using endothelial cells in vitro, with focus on CLS formation and the respective biochemical processes in cell models proximate to a healthy or malignant environment. A light-stimulated angiogenesis has been found, stimulated via extracellular Ca2+ influx, cell cycle progression, proliferation and NO generation, VEGF production increase by endothelial cells under hypoxia conditions.
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Affiliation(s)
- Yurii V Stepanov
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Iuliia Golovynska
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Sergii Golovynskyi
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Liudmyla V Garmanchuk
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine
| | - Oleksandr Gorbach
- Laboratory of Experimental Oncology, National Cancer Institute of Ukraine, Kyiv 03022, Ukraine
| | - Liudmyla I Stepanova
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine
| | - Natalia Khranovska
- Laboratory of Experimental Oncology, National Cancer Institute of Ukraine, Kyiv 03022, Ukraine
| | - Liudmyla I Ostapchenko
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv 01601, Ukraine
| | - Tymish Y Ohulchanskyy
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China.
| | - Junle Qu
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China.
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25
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Denzinger M, Schenk KBM, Krauß S, Held M, Daigeler A, Wolfertstetter PR, Knorr C, Illg C, Eisler W. Immune-modulating properties of blue light do not influence reepithelization in vitro. Lasers Med Sci 2022; 37:2431-2437. [PMID: 35048232 DOI: 10.1007/s10103-022-03502-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/30/2021] [Indexed: 11/29/2022]
Abstract
Phototherapy is gaining more attention in the treatment of various diseases. Especially, blue light seems to be a promising approach for wound healing promotion due to its antimicrobial and immune-modulating properties. Despite this, there is only little research focusing on the immune-modulating properties of blue light and its possible effects on wound healing. Therefore, we investigated the effects of blue light irradiation on peripheral blood mononuclear cells (PBMC) and the influence on reepithelization in vitro. PBMCs were irradiated with DermoDyne® (DermoDyne HealthCare, Berlin, Germany) and effects on cell viability, cytokine expression, and scratch wound closure were evaluated afterwards. Irradiated cells showed a higher Interleukin-γ concentration while irradiation reduced resazurin concentration in a time-dependent manner. No differences in reepithelization were detectable when keratinocytes were treated with the supernatant of these blue light irradiated PBMCs. Blue light-mediated ex vivo stimulation of PBMCs does not cause faster reepithelization in an in vitro setting. Further research is needed to investigate the wound healing effects of phototherapy with blue light.
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Affiliation(s)
- Markus Denzinger
- Department of Pediatric Surgery and Orthopedics, University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, Steinmetzstraße 1-3, 93049, Regensburg, Germany.
| | - Katharina B M Schenk
- Department of Medicine, St. John of God Hospital Regensburg, Regensburg, Germany
| | - Sabrina Krauß
- Clinic for Plastic, Reconstructive, Hand and Burn Surgery, BG Trauma Center, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
| | - Manuel Held
- Clinic for Plastic, Reconstructive, Hand and Burn Surgery, BG Trauma Center, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
| | - Adrien Daigeler
- Clinic for Plastic, Reconstructive, Hand and Burn Surgery, BG Trauma Center, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
| | - Patricia Reis Wolfertstetter
- Department of Pediatric Surgery and Orthopedics, University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, Steinmetzstraße 1-3, 93049, Regensburg, Germany
| | - Christian Knorr
- Department of Pediatric Surgery and Orthopedics, University Children's Hospital Regensburg (KUNO) at the Hospital St. Hedwig of the Order of St. John, Steinmetzstraße 1-3, 93049, Regensburg, Germany
| | - Claudius Illg
- Clinic for Plastic, Reconstructive, Hand and Burn Surgery, BG Trauma Center, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
| | - Wiebke Eisler
- Clinic for Plastic, Reconstructive, Hand and Burn Surgery, BG Trauma Center, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
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26
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Feichtinger X, Heimel P, Tangl S, Keibl C, Nürnberger S, Schanda JE, Hercher D, Kocijan R, Redl H, Grillari J, Fialka C, Mittermayr R. Improved biomechanics in experimental chronic rotator cuff repair after shockwaves is not reflected by bone microarchitecture. PLoS One 2022; 17:e0262294. [PMID: 34986173 PMCID: PMC8730430 DOI: 10.1371/journal.pone.0262294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 12/21/2021] [Indexed: 11/28/2022] Open
Abstract
Purpose The aim of this study was to investigate the effect of extracorporeal shockwave therapy (ESWT) on bone microstructure as well as the bone-tendon-interface and the musculo-tendinous transition zone to explain the previously shown improved biomechanics in a degenerative rotator cuff tear animal model. This study hypothesized that biomechanical improvements related to ESWT are a result of improved bone microstructure and muscle tendon properties. Methods In this controlled laboratory study unilateral supraspinatus (SSP) tendon detachment was performed in 48 male Sprague-Dawley rats. After a degeneration period of three weeks, SSP tendon was reconstructed transosseously. Rats were randomly assigned into three groups (n = 16 per group): control (noSW); intraoperative shockwave treatment (IntraSW); intra- and postoperative shockwave treatment (IntraPostSW). Eight weeks after SSP repair, all rats were sacrificed and underwent bone microstructure analysis as well as histological and immunohistochemical analyses. Results With exception of cortical porosity at the tendon area, bone microstructure analyses revealed no significant differences between the three study groups regarding cortical and trabecular bone parameters. Cortical Porosity at the Tendon Area was lowest in the IntraPostSW (p≤0.05) group. Histological analyses showed well-regenerated muscle and tendon structures in all groups. Immunohistochemistry detected augmented angiogenesis at the musculo-tendinous transition zone in both shockwave groups indicated by CD31 positive stained blood vessels. Conclusion In conclusion, bone microarchitecture changes are not responsible for previously described improved biomechanical results after shockwave treatment in rotator cuff repair in rodents. Immunohistochemical analysis showed neovascularization at the musculo-tendinous transition zone within ESWT-treated animals. Further studies focusing on neovascularization at the musculo-tendinous transition zone are necessary to explain the enhanced biomechanical and functional properties observed previously. Clinical relevance In patients treated with a double-row SSP tendon repair, an improvement in healing through ESWT, especially in this area, could prevent a failure of the medial row, which is considered a constantly observed tear pattern.
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Affiliation(s)
- Xaver Feichtinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- AUVA Trauma Center Vienna—Meidling, Vienna, Austria
- Department of Orthopaedic Surgery II, Herz-Jesu Krankenhaus, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- * E-mail:
| | - Patrick Heimel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Department of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Stefan Tangl
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Karl Donath Laboratory for Hard Tissue and Biomaterial Research, Department of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Claudia Keibl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Sylvia Nürnberger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Division of Trauma-Surgery, Department of Orthopaedics and Trauma-Surgery, Medical University of Vienna, Vienna, Austria
| | - Jakob Emanuel Schanda
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- AUVA Trauma Center Vienna—Meidling, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - David Hercher
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Roland Kocijan
- Ludwig Boltzmann Institute of Osteology, 1st Medical Department at Hanusch Hospital, Vienna, Austria
- Center for the Musculoskeletal System, Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Johannes Grillari
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Christian Fialka
- AUVA Trauma Center Vienna—Meidling, Vienna, Austria
- Center for the Musculoskeletal System, Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - Rainer Mittermayr
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, Vienna, Austria
- AUVA Trauma Center Vienna—Meidling, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Center for the Musculoskeletal System, Medical Faculty, Sigmund Freud University, Vienna, Austria
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27
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Suh H, Lee J, Ahn SH, Song W, Li L, Lee YM, Seol YJ, Koo KT. Repeated irradiation by light-emitting diodes may impede the spontaneous progression of experimental periodontitis: a preclinical study. J Periodontal Implant Sci 2022; 53:120-134. [PMID: 36468480 PMCID: PMC10133817 DOI: 10.5051/jpis.2202320116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/31/2022] [Accepted: 08/30/2022] [Indexed: 11/05/2022] Open
Abstract
PURPOSE We investigated whether repeated irradiation with light-emitting diodes (LEDs) at a combination of 470 nm and 525 nm could suppress the progression of experimental periodontitis. METHODS A experimental periodontitis model was established in the second, third, and fourth premolars of the mandible in beagle dogs for 2 months. The spontaneous progression of periodontitis was monitored under the specified treatment regimen for 3 months. During this period, the animals were subjected to treatments of either plaque control only (control) or plaque control with LED application (test) at 2-week intervals. The clinical parameters included the probing pocket depth (PPD), gingival recession (GR), and the clinical attachment level (CAL). Histomorphometric analysis was performed using measurements of the length of the junctional epithelium, connective tissue (CT) zone, and total soft tissue (ST). RESULTS There were significant differences in PPD between the control and test groups at baseline and 12 weeks. When the change in PPD was stratified based on time intervals, it was shown that greater differences occurred in the test group, with statistical significance for baseline to 12 weeks, 6 to 12 weeks, and baseline to 6 weeks. There was no significant difference in GR between the control and test groups at any time points. Likewise, no statistically significant differences were found in GR at any time intervals. CAL showed a statistically significant difference between the control and test groups at baseline only, although significant differences in CAL were observed between baseline and 12 weeks and between 6 and 12 weeks. The proportion of CT to ST was smaller for both buccal and lingual areas in the control group than in the test group. CONCLUSIONS Repeated LED irradiation with a combination of 470-nm and 525-nm wavelengths may help suppress the progression of periodontal disease.
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Affiliation(s)
- Hyemee Suh
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
- Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
| | - Jungwon Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
- One-Stop Specialty Center, Seoul National University Dental Hospital, Seoul, Korea
| | - Sun-Hee Ahn
- Medical & Bio Photonics Research Center, Korea Photonics Technology Institute (KOPTI), Gwangju, Korea
| | - Woosub Song
- Medical & Bio Photonics Research Center, Korea Photonics Technology Institute (KOPTI), Gwangju, Korea
| | - Ling Li
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
| | - Yong-Moo Lee
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
- Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
| | - Yang-Jo Seol
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
- Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
| | - Ki-Tae Koo
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Korea
- Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
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28
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Cai W, Hamushan M, Zhang Y, Xu Z, Ren Z, Du J, Ju J, Cheng P, Tan M, Han P. Synergistic Effects of Photobiomodulation Therapy with Combined Wavelength on Diabetic Wound Healing In Vitro and In Vivo. Photobiomodul Photomed Laser Surg 2022; 40:13-24. [PMID: 34941461 DOI: 10.1089/photob.2021.0068] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Objective: The difficulty in chronic diabetic wound healing remains the focus of clinical research. Photobiomodulation therapy (PBMT) with different wavelengths could exert different effects on wound healing, but the effects of combined red and blue light (BL) remained unclear. Methods: Diabetic rat wound model and diabetic wounded endothelial cell model were established to observe possible effects of PBMT using combined wavelengths for wound healing. Cells and animals were separated into four groups exposed to red and/or BL. Cell viability, apoptosis, and migration, as well as the expression level of nitric oxide (NO), vascular endothelial growth factor, interleukin-6, and tumor necrosis factor-α were measured in vitro. Diabetic rats were evaluated for wound closure rates, collagen deposition, inflammation intensity, and density of neovascularization after light irradiation. Results: PBMT using combined wavelengths significantly sped up the healing process with increasing angiogenesis density, collagen deposition, and alleviating inflammation in vivo. Moreover, combined wavelength irradiation promoted cell proliferation and migration, and NO production, as well as reduced reactive oxygen species and inflammation in vitro. Conclusions: PBMT using combined wavelengths performed a synergistic effect for promoting diabetic wound healing and would be helpful to explore a more efficient pattern toward chronic wound healing.
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Affiliation(s)
- Weijie Cai
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Musha Hamushan
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yubo Zhang
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Zhengyu Xu
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Zun Ren
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiafei Du
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiaqi Ju
- College of Sciences, Shanghai Institute of Technology, Shanghai, China
| | - Pengfei Cheng
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Moyan Tan
- College of Sciences, Shanghai Institute of Technology, Shanghai, China
| | - Pei Han
- Orthopedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Kim Y, Kim S, Im G, Kim YH, Jeong G, Jeon HR, Kim D, Lee H, Park SY, Cho SM, Bhang SH. Area light source-triggered latent angiogenic molecular mechanisms intensify therapeutic efficacy of adult stem cells. Bioeng Transl Med 2022; 7:e10255. [PMID: 35079630 PMCID: PMC8780080 DOI: 10.1002/btm2.10255] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/03/2021] [Accepted: 09/05/2021] [Indexed: 12/31/2022] Open
Abstract
Light-based therapy such as photobiomodulation (PBM) reportedly produces beneficial physiological effects in cells and tissues. However, most reports have focused on the immediate and instant effects of light. Considering the physiological effects of natural light exposure in living organisms, the latent reaction period after irradiation should be deliberated. In contrast to previous reports, we examined the latent reaction period after light exposure with optimized irradiating parameters and validated novel therapeutic molecular mechanisms for the first time. we demonstrated an organic light-emitting diode (OLED)-based PBM (OPBM) strategy that enhances the angiogenic efficacy of human adipose-derived stem cells (hADSCs) via direct irradiation with red OLEDs of optimized wavelength, voltage, current, luminance, and duration, and investigated the underlying molecular mechanisms. Our results revealed that the angiogenic paracrine effect, viability, and adhesion of hADSCs were significantly intensified by our OPBM strategy. Following OPBM treatment, significant changes were observed in HIF-1α expression, intracellular reactive oxygen species levels, activation of the receptor tyrosine kinase, and glycolytic pathways in hADSCs. In addition, transplantation of OLED-irradiated hADSCs resulted in significantly enhanced limb salvage ratio in a mouse model of hindlimb ischemia. Our OPBM might serve as a new paradigm for stem cell culture systems to develop cell-based therapies in the future.
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Affiliation(s)
- Yu‐Jin Kim
- School of Chemical EngineeringSungkyunkwan UniversitySuwonRepublic of Korea
| | - Sung‐Won Kim
- School of Chemical EngineeringSungkyunkwan UniversitySuwonRepublic of Korea
| | - Gwang‐Bum Im
- School of Chemical EngineeringSungkyunkwan UniversitySuwonRepublic of Korea
| | - Yeong Hwan Kim
- School of Chemical EngineeringSungkyunkwan UniversitySuwonRepublic of Korea
| | - Gun‐Jae Jeong
- Division of Vascular Surgery, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Hye Ran Jeon
- Department of Health Sciences and Technology, SAIHSTSungkyunkwan UniversitySeoulRepublic of Korea
| | - Dong‐Ik Kim
- Division of Vascular Surgery, Samsung Medical CenterSungkyunkwan University School of MedicineSeoulRepublic of Korea
| | - Haeshin Lee
- Department of Chemistry, Center for Nature‐Inspired Technology (CNiT)Korea Advanced Institute of Science and Technology (KAIST)DaejeonRepublic of Korea
| | - Sung Young Park
- Department of Chemical and Biological EngineeringKorea National University of TransportationChungjuRepublic of Korea
| | - Sung Min Cho
- School of Chemical EngineeringSungkyunkwan UniversitySuwonRepublic of Korea
| | - Suk Ho Bhang
- School of Chemical EngineeringSungkyunkwan UniversitySuwonRepublic of Korea
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Mostafavinia A, Amini A, Ahmadi H, Rezaei F, Ghoreishi SK, Chien S, Bayat M. Combined Treatment of Photobiomodulation and Arginine on Chronic Wound Healing in an Animal Model. J Lasers Med Sci 2021; 12:e40. [PMID: 34733763 DOI: 10.34172/jlms.2021.40] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 03/06/2021] [Indexed: 01/22/2023]
Abstract
Introduction: Herein, the individual and combined effects of photobiomodulation (PBM) and arginine (ARG) on the wound healing course of an experimental model of a slow healing wound (ulcer) in rats were assessed. Methods: A total of 108 male rats were divided into 6 groups: control; lower energy density (low)-PBM; arginine ointment (ARG); low-PBM+ARG; high energy density (high)-PBM; and high-PBM+ARG. In each rat, one ischemic wound in the center of a bipedicle flap and one non-ischemic wound out of the flap were created. Both wounds were treated in the experimental groups. Microbial growth, wound area, and wound strength were assessed on days 0, 5, 10, 15, and 20 after wound infliction. Results: All non-ischemic wounds closed before day 15. High-PBM+ARG and ARG significantly increased wound closure rates compared to the control group (LSD test, P = 0.000, and P = 0.001, respectively) on day 10. All slow healing wounds were open on day 15 but closed completely before day 20. Low-PBM+ARG and high-PBM significantly increased wound strength (stress high load, SHL) on day 10 compared to the control group (LSD test, P = 0.001, and P = 0.000, respectively). ARG, high-PBM, and low-PBM+ARG significantly increased wound closure rates on day 15 relative to the control group (LSD test, P = 0.000, P = 0.000, and P = 0.001, respectively). Conclusion: High-PBM and low-PBM+ARG have biostimulatory and antibacterial effects on slow-healing wounds, which were shown by significant increases in wound closure rates, wound strength, and inhibition of Staphylococcus aureus growth.
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Affiliation(s)
- Atarodsadat Mostafavinia
- Department of Anatomy, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Houssein Ahmadi
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Fatemehalsadat Rezaei
- University of Kentucky College of Pharmacy 789 South Limestone Lexington, Kentucky 40536, USA
| | | | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville, and Noveratech LLC of Louisville, Louisville, Kentucky, USA
| | - Mohammad Bayat
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran.,Price Institute of Surgical Research, University of Louisville, and Noveratech LLC of Louisville, Louisville, Kentucky, USA
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Mostafavinia A, Amini A, Ahmadi H, Rezaei F, Ghoreishi SK, Chien S, Bayat M. Combined Treatment of Photobiomodulation and Arginine on Chronic Wound Healing in an Animal Model. J Lasers Med Sci 2021; 12:e40-e40. [DOI: https:/doi.org/10.34172/jlms.2021.40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 03/06/2021] [Indexed: 02/18/2024]
Abstract
Introduction: Herein, the individual and combined effects of photobiomodulation (PBM) and arginine (ARG) on the wound healing course of an experimental model of a slow healing wound (ulcer) in rats were assessed. Methods: A total of 108 male rats were divided into 6 groups: control; lower energy density (low)-PBM; arginine ointment (ARG); low-PBM+ARG; high energy density (high)-PBM; and high-PBM+ARG. In each rat, one ischemic wound in the center of a bipedicle flap and one non-ischemic wound out of the flap were created. Both wounds were treated in the experimental groups. Microbial growth, wound area, and wound strength were assessed on days 0, 5, 10, 15, and 20 after wound infliction. Results: All non-ischemic wounds closed before day 15. High-PBM+ARG and ARG significantly increased wound closure rates compared to the control group (LSD test, P=0.000, and P=0.001, respectively) on day 10. All slow healing wounds were open on day 15 but closed completely before day 20. Low-PBM+ARG and high-PBM significantly increased wound strength (stress high load, SHL) on day 10 compared to the control group (LSD test, P=0.001, and P=0.000, respectively). ARG, high-PBM, and low-PBM+ARG significantly increased wound closure rates on day 15 relative to the control group (LSD test, P=0.000, P=0.000, and P=0.001, respectively). Conclusion: High-PBM and low-PBM+ARG have biostimulatory and antibacterial effects on slow-healing wounds, which were shown by significant increases in wound closure rates, wound strength, and inhibition of Staphylococcus aureus growth.
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Affiliation(s)
- Atarodsadat Mostafavinia
- Department of Anatomy, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Houssein Ahmadi
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
| | - Fatemehalsadat Rezaei
- University of Kentucky College of Pharmacy 789 South Limestone Lexington, Kentucky 40536, USA
| | | | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville, and Noveratech LLC of Louisville, Louisville, Kentucky, USA
| | - Mohammad Bayat
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran
- Price Institute of Surgical Research, University of Louisville, and Noveratech LLC of Louisville, Louisville, Kentucky, USA
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32
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Kan K, Mu Y, Bouschbacher M, Sticht C, Kuch N, Sigl M, Rahbari N, Gretz N, Pallavi P, Keese M. Biphasic Effects of Blue Light Irradiation on Human Umbilical Vein Endothelial Cells. Biomedicines 2021; 9:biomedicines9070829. [PMID: 34356893 PMCID: PMC8301484 DOI: 10.3390/biomedicines9070829] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 11/22/2022] Open
Abstract
Blue light regulates biological function in various cells, such as proliferation, oxidative stress, and cell death. We employed blue light illumination on human umbilical vein endothelial cells utilizing a LED device at 453 nm wavelength and revealed a novel biphasic response on human umbilical vein endothelial cells (HUVECs). The results showed that low fluence blue light irradiation promoted the fundamental cell activities, including cell viability, migration and angiogenesis by activating the angiogenic pathways such as the VEGF signaling pathway. In contrast, high fluence illumination caused the opposite effect on those activities by upregulating pro-apoptotic signaling cascades like ferroptosis, necroptosis and the p53 signaling pathways. Our results provide an underlying insight into photobiomodulation by blue light and may help to implement potential treatment strategies for treating angiogenesis-dependent diseases.
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Affiliation(s)
- Kejia Kan
- Department of Vascular Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (K.K.); (Y.M.); (N.K.)
- European Center of Angioscience ECAS, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
| | - Yifei Mu
- Department of Vascular Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (K.K.); (Y.M.); (N.K.)
| | | | - Carsten Sticht
- NGS Core Facility, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany;
| | - Natalia Kuch
- Department of Vascular Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (K.K.); (Y.M.); (N.K.)
| | - Martin Sigl
- First Department of Medicine, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany;
| | - Nuh Rahbari
- Department of Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany;
| | - Norbert Gretz
- Medical Research Centre, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany;
| | - Prama Pallavi
- Department of Vascular Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (K.K.); (Y.M.); (N.K.)
- European Center of Angioscience ECAS, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
- Correspondence: (P.P.); (M.K.); Tel.: +49-621-383-4057 (P.P.); +49-621-383-1501 (M.K.)
| | - Michael Keese
- Department of Vascular Surgery, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (K.K.); (Y.M.); (N.K.)
- European Center of Angioscience ECAS, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany
- Correspondence: (P.P.); (M.K.); Tel.: +49-621-383-4057 (P.P.); +49-621-383-1501 (M.K.)
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Reier S, Turyanskaya A, Heimel P, Frischauf N, Meusburger D, Heuser T, Drexler N, Janovszky Á, Streli C, Slezak P, Plochberger B, Dungel P, Szabó A, Walter A. Cross-modality imaging of bisphosphonate-treated murine jawbones. Analyst 2021; 146:4683-4699. [PMID: 34195707 DOI: 10.1039/d0an02373f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this proof-of-principle study, we established and implemented a cross-modality imaging (CMI) pipeline to characterize and compare bisphosphonate (BIS)-treated jawbones of Sprague-Dawley rats after tooth extraction after physical therapies (photobiomodulation and extracorporeal shockwave therapy (PBMT and ESWT)). We showcase the feasibility of such a CMI approach and its compatibility across imaging modalities to probe the same region of interest (ROI) of the same jawbone. Jawbones were imaged in toto in 3D using micro-Computed Tomography to identify ROIs for subsequent sequential 2D analysis using well-established technologies such as Atomic Force Microscopy and Scanning Electron Microscopy, and recent imaging approaches in biomedical settings, such as micro-X-Ray Fluorescence Spectroscopy. By combining these four modalities, multiscale information on the morphology, topography, mechanical stiffness (Young's modulus), and calcium, zinc and phosphorus concentrations of the bone was collected. Based on the CMI pipeline, we characterized and compared the jawbones of a previously published clinically relevant rat model of BIS-related osteonecrosis of the jawbone (BRONJ) before and after treatment with BISs, PBMT and ESWT. While we did not find that physical therapies altered the mechanical and elemental jawbone parameters with significance (probably due to the small sample size of only up to 5 samples per group), both ESWT and PBMT reduced pore thicknesses and bone-to-enamel distances significantly compared to the controls. Although focused on BIS-treated jawbones, the established CMI platform can be beneficial in the study of bone-related diseases in general (such as osteoarthritis or -porosis) to acquire complementary hallmarks and better characterize disease status and alleviation potentials.
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Affiliation(s)
- Susanne Reier
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | | | - Patrick Heimel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Trauma Research Center, Austrian BioImaging/CMI, Vienna, Austria and Core Facility Hard Tissue and Biomaterial Research, Karl Donath Laboratory, University Clinic of Dentistry, Medical University Vienna, Vienna, Austria
| | - Nikolaus Frischauf
- University of Applied Sciences Upper Austria, Austrian BioImaging/CMI, Vienna, Austria
| | - Daria Meusburger
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | - Thomas Heuser
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | - Nicole Drexler
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | - Ágnes Janovszky
- Department of Oral and Maxillofacial Surgery, University of Szeged, Hungary
| | | | - Paul Slezak
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Trauma Research Center, Austrian BioImaging/CMI, Vienna, Austria
| | - Birgit Plochberger
- University of Applied Sciences Upper Austria, Austrian BioImaging/CMI, Vienna, Austria
| | - Peter Dungel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Trauma Research Center, Austrian BioImaging/CMI, Vienna, Austria
| | - Andrea Szabó
- Institute of Surgical Research, Faculty of Medicine, University of Szeged, Hungary
| | - Andreas Walter
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
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Schneider C, Dungel P, Priglinger E, Danzer M, Schädl B, Nürnberger S. The impact of photobiomodulation on the chondrogenic potential of adipose-derived stromal/stem cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 221:112243. [PMID: 34217028 DOI: 10.1016/j.jphotobiol.2021.112243] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/23/2021] [Accepted: 06/16/2021] [Indexed: 01/11/2023]
Abstract
Due to their capacity to differentiate into the chondrogenic lineage, adipose-derived stromal/stem cells (ASC) are a promising source of therapeutically relevant cells for cartilage tissue regeneration. Their differentiation potential, however, varies between patients. In our study, we aim to stimulate ASC towards a more reliable chondrogenic phenotype using photobiomodulation (PBM). LED devices of either blue (475 nm), green (516 nm) or red (635 nm) light were used to treat human ASC from donors of varying chondrogenic potential. The treatment was applied either once during the 2D expansion phase or repeatedly during the 3D differentiation phase. Chondrogenic differentiation was assessed via pellet size, GAG/DNA content, histology and gene expression analysis. Reactions to PBM were found to be wavelength-dependent and more pronounced when the treatment was applied during expansion. Donors were assigned to responder categories according to their response to the treatment during expansion, whereby good responders were mainly donors with low intrinsic chondrogenic potential. Exposed to light, they revealed a particularly high relative increase in pellet size (more than twice the size of untreated controls after red light PBM), intense collagen type II immunostaining (low/absent in untreated controls) and activation of otherwise absent COL2A1 expression. Conversely, on a donor with high intrinsic chondrogenic potential, light had adverse effects. When applied with shorter wavelengths (blue, green), it led to reduced pellet size, GAG/DNA content and collagen type II immunostaining. However, when PBM was applied in 3D, the same donor was the only one to react with increased differentiation to all three wavelengths. We were able to demonstrate that PBM can be used to enhance or hamper chondrogenesis of ASC, and that success depends on treatment parameters and intrinsic cellular potential. The improvement of chondrogenesis in donors with low intrinsic potential highlights PBM as potent tool for cell-based cartilage regeneration. Its cost-effectiveness and ease of use make for an attractive treatment option to enhance the performance of ASC in cartilage tissue engineering.
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Affiliation(s)
- C Schneider
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Center, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - P Dungel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Center, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria.
| | - E Priglinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Center, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - M Danzer
- Austrian Red Cross Blood Transfusion Service of Upper Austria, Linz, Austria
| | - B Schädl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Center, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria; University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - S Nürnberger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Trauma Research Center, Vienna, Austria; Austrian Cluster for Tissue Regeneration, Vienna, Austria; Department of Orthopedics and Trauma-Surgery, Division of Trauma-Surgery, Medical University of Vienna, Vienna, Austria
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Fuchs C, Schenk MS, Pham L, Cui L, Anderson RR, Tam J. Photobiomodulation Response From 660 nm is Different and More Durable Than That From 980 nm. Lasers Surg Med 2021; 53:1279-1293. [PMID: 33998008 DOI: 10.1002/lsm.23419] [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: 12/23/2020] [Revised: 03/28/2021] [Accepted: 04/24/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES Photobiomodulation (PBM) therapy uses light at various wavelengths to stimulate wound healing, grow hair, relieve pain, and more-but there is no consensus about optimal wavelengths or dosimetry. PBM therapy works through putative, wavelength-dependent mechanisms including direct stimulation of mitochondrial respiration, and/or activation of transmembrane signaling channels by changes in water activity. A common wavelength used in the visible red spectrum is ~660 nm, whereas recently ~980 nm is being explored and both have been proposed to work via different mechanisms. We aimed to gain more insight into identifying treatment parameters and the putative mechanisms involved. STUDY DESIGN/MATERIALS AND METHODS Fluence-response curves were measured in cultured keratinocytes and fibroblasts exposed to 660 or 980 nm from LED sources. Metabolic activity was assessed using the MTT assay for reductases. ATP production, a major event triggered by PBM therapy, was assessed using a luminescence assay. To measure the role of mitochondria, we used an ELISA to measure COX-1 and SDH-A protein levels. The respective contributions of cytochrome c oxidase and ATP synthase to the PBM effects were gauged using specific inhibitors. RESULTS Keratinocytes and fibroblasts responded differently to exposures at 660 nm (red) and 980 nm (NIR). Although 980 nm required much lower fluence for cell stimulation, the resulting increase in ATP levels was short-term, whereas 660 nm stimulation elevated ATP levels for at least 24 hours. COX-1 protein levels were increased following 660 nm treatment but were unaffected by 980 nm. In fibroblasts, SDH-A levels were affected by both wavelengths, whereas in keratinocytes only 660 nm light impacted SDH-A levels. Inhibition of ATP synthase nearly completely abolished the effects of both wavelengths on ATP synthesis. Interestingly, inhibiting cytochrome c oxidase did not prevent the rise in ATP levels in response to PBM treatment. CONCLUSION To the best of our knowledge, this is the first demonstration of differing kinetics in response to PBM therapy at red versus NIR wavelength. We also found cell-type-specific differences in PBM therapy response to the two wavelengths studied. These findings confirm that different response pathways are involved after 660 and 980 nm exposures and suggest that 660 nm causes a more durable response. © 2021 Wiley Periodicals LLC.
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Affiliation(s)
- Christiane Fuchs
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, 02114.,Department of Dermatology, Harvard Medical School, Boston, Massachusetts, 02115
| | - Merle Sophie Schenk
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, 02114
| | - Linh Pham
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, 02114
| | - Lian Cui
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, 02114
| | - Richard Rox Anderson
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, 02114.,Department of Dermatology, Harvard Medical School, Boston, Massachusetts, 02115
| | - Joshua Tam
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts, 02114.,Department of Dermatology, Harvard Medical School, Boston, Massachusetts, 02115
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Plattfaut I, Demir E, Fuchs PC, Schiefer JL, Stürmer EK, Brüning AKE, Opländer C. Characterization of Blue Light Treatment for Infected Wounds: Antibacterial Efficacy of 420, 455, and 480 nm Light-Emitting Diode Arrays Against Common Skin Pathogens Versus Blue Light-Induced Skin Cell Toxicity. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2021; 39:339-348. [PMID: 33961502 DOI: 10.1089/photob.2020.4932] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Objective: To determine effective treatment strategies against bacterial infections of chronic wounds, we tested different blue light (BL)-emitting light-emitting diode arrays (420, 455, and 480 nm) against wound pathogens and investigated in parallel BL-induced toxic effects on human dermal fibroblasts. Background: Wound infection is a major factor for delayed healing. Infections with Pseudomonas aeruginosa and Staphylococcus aureus are clinically relevant caused by their ability of biofilm formation and their quickly growing antibiotics resistance. BL has demonstrated antimicrobial properties against various microbes. Methods: Determination of antibacterial and cell toxic effects by colony-forming units (CFUs)/biofilm/cell viability assays, and live cell imaging. Results: A single BL irradiation (180 J/cm2), of P. aeruginosa at both 420 and 455 nm resulted in a bacterial reduction (>5 log10 CFU), whereas 480 nm revealed subantimicrobial effects (2 log10). All tested wavelengths of BL also revealed bacteria reducing effects on Staphylococcus epidermidis and Escherichia coli (maximum 1-2 log10 CFU) but not on S. aureus. Dealing with biofilms, all wavelengths using 180 J/cm2 were able to reduce significantly the number of P. aeruginosa, E. coli, and S. epidermidis. Here, BL420nm achieved reductions up to 99%, whereas BL455nm and BL480nm were less effective (60-83%). Biofilm-growing S. aureus was more BL sensitive than in the planktonic phase showing a reduction by 63-75%. A significant number of cell toxic events (>40%) could be found after applying doses (>30 J/cm2) of BL420nm. BL455nm showed only slight cell toxicity (180 J/cm2), whereas BL480nm was nontoxic at any dose. Conclusions: BL treatment can be effective against bacterial infections of chronic wounds. Nevertheless, using longer wavelengths >455 nm should be preferred to avoid possible toxic effects on skin and skin cells. To establish BL therapy for infected chronic wounds, further studies concerning biofilm formation and tissue compatibility are necessary.
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Affiliation(s)
- Isabell Plattfaut
- Chair, Department of Virology and Microbiology, Centre for Biomedical Education and Research (ZBAF), University Witten/Herdecke, Witten, Germany
| | - Erhan Demir
- Plastic Surgery, Hand Surgery, Burn Center, Cologne-Merheim Hospital, Cologne, Germany
| | - Paul C Fuchs
- Plastic Surgery, Hand Surgery, Burn Center, Cologne-Merheim Hospital, Cologne, Germany
| | - Jennifer L Schiefer
- Plastic Surgery, Hand Surgery, Burn Center, Cologne-Merheim Hospital, Cologne, Germany
| | - Ewa K Stürmer
- Department of Vascular Medicine, University Heart Center, Translational Wound Research, University Medical Center, Hamburg, Germany
| | - Anne K E Brüning
- Clinic for Thoracic and Cardiovascular Surgery, Heart and Diabetes Centre North Rhine Westphalia, Bad Oeynhausen, Germany
| | - Christian Opländer
- Chair, Department of Virology and Microbiology, Centre for Biomedical Education and Research (ZBAF), University Witten/Herdecke, Witten, Germany.,Institute for Research in Operative Medicine (IFOM), Cologne-Merheim Medical Center, University Witten/Herdecke, Witten, Germany
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Hamushan M, Cai W, Lou T, Cheng P, Zhang Y, Tan M, Chai Y, Zhang F, Lineaweaver WC, Han P, Ju J. Postconditioning With Red-Blue Light Therapy Improves Survival of Random Skin Flaps in a Rat Model. Ann Plast Surg 2021; 86:582-587. [PMID: 32756256 DOI: 10.1097/sap.0000000000002501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Random skin flap ischemic necrosis is a serious challenge in reconstructive surgery. Photobiomodulation is a noninvasive effective technique to improve microcirculation and neovascularization. Photobiomodulation with red or blue light has been separately proven to partially prevent skin flap necrosis, but the synergistic effect of red and blue light not been elucidated. Our experiment evaluated the impact of postconditioning with red-blue light therapy on the viability of random flaps. METHODS Thirty Sprague-Dawley male rats (male, 12 weeks) with a cranially based random pattern skin flap (3 × 8 cm) were divided into 3 groups: control group, red light group, and red-blue light group. On postoperative day 7, flap survival was observed and recorded using transparent graph paper, flaps were obtained and stained with hematoxylin and eosin, and microvessel density was measured. Micro-computed tomography was used to measure vascular volume and vascular length. On days 0, 3, and 7 after surgery, blood flow was measured by laser Doppler. To investigate the underlying mechanisms, the amount of nitric oxide (NO) metabolites in the flap tissue was assessed on days 3, 5, and 7 after surgery. RESULTS The mean percentage of skin flap survival was 59 ± 10% for the control group, 69 ± 7% for the red light group, and 79 ± 9% for the red-blue light group (P < 0.01). The microvessel density was 12.3 ± 1.2/mm2 for the control group, 31.3 ± 1.3/mm2 for the red light group, and 36.5 ± 1.4/mm2 for the red-blue light group (P < 0.01). Both vascular volume and total length in the red-blue light group showed significantly increased compared with the red light and control group (P < 0.01). Blood flow in the red-blue light treated flap showed significantly increased at postsurgery days 3 and 7 compared with the red light and control group (P < 0.01). The level of the NO metabolites was significantly increased in flap tissues belonging to the red-blue light group compared with the other 2 groups (P < 0.01). CONCLUSIONS This study showed that postconditioning with red-blue light therapy can enhance the survival of random skin flap by improving angiogenesis and NO releasing.
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Affiliation(s)
- Musha Hamushan
- From the Orthopaedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Weijie Cai
- From the Orthopaedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Tengfei Lou
- From the Orthopaedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Pengfei Cheng
- From the Orthopaedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yubo Zhang
- From the Orthopaedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Moyan Tan
- College of Sciences, Shanghai Institute of Technology, Shanghai, China
| | - Yimin Chai
- From the Orthopaedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Feng Zhang
- Joseph M. Still Burn and Reconstructive Center Jackson, MS
| | | | - Pei Han
- From the Orthopaedic Department, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiaqi Ju
- College of Sciences, Shanghai Institute of Technology, Shanghai, China
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Markoulli M, Chandramohan N, Papas EB. Photobiomodulation (low-level light therapy) and dry eye disease. Clin Exp Optom 2021; 104:561-566. [PMID: 33689636 DOI: 10.1080/08164622.2021.1878866] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Dry eye disease is one of the most common, chief-complaints presenting in clinical practice, with a prevalence of up to 50%. Evaporative dry eye, as a result of meibomian gland dysfunction, is thought to be the biggest component factor. Treatments for meibomian gland dysfunction aim to restore tear film homoeostasis and include warm compress therapy, eyelid hygiene, in-office meibomian gland expression and lipid-containing, artificial tears. A recent introduction to the in-office treatments available for meibomian gland dysfunction has been low-level light therapy, also known as photobiomodulation. The technique involves applying red, or near infra-red, radiation using low-power light sources and is suggested to promote tissue repair, decrease inflammation, and relieve pain. This work aims to review the available literature on the efficacy and safety of photobiomodulation in meibomian gland dysfunction and dry eye disease, as well as what is currently known about its mechanism of action.
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Affiliation(s)
- Maria Markoulli
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
| | - Nivaasheni Chandramohan
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia.,Macular Degeneration Foundation Australia, Sydney, Australia
| | - Eric B Papas
- School of Optometry & Vision Science, University of New South Wales, Sydney, Australia
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Hendler KG, Canever JB, de Souza LG, das Neves LMS, de Cássia Registro Fonseca M, Kuriki HU, da Silva Aguiar Junior A, Barbosa RI, Marcolino AM. Comparison of photobiomodulation in the treatment of skin injury with an open wound in mice. Lasers Med Sci 2021; 36:1845-1854. [PMID: 33496904 DOI: 10.1007/s10103-020-03216-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 12/01/2020] [Indexed: 10/22/2022]
Abstract
This study aimed to investigate the effects of photobiomodulation at a wavelength of 660 and 830 nm at different numbers of application points in the healing of open wounds in mice. In total, 120 mice were divided into 10 groups. The animals were submitted to cutaneous lesion of the open wound type (1.5 × 1.5 cm). Photobiomodulation at a wavelength of 660 and 830 nm and total energy of 3.6 J were used, applied at 1, 4, 5, and 9 points, for 14 days. The animals were subjected to analysis of the lesion area, skin temperature, and histological analysis. Macroscopic analysis results showed a difference (p < 0.05) between the irradiated groups and the sham group at 14 days PO. There was no statistical difference in skin temperature. Histological analysis findings showed better results for the epidermis thickness. Regarding the number of blood vessels, a difference was found between the 1- and 5-point 830-nm photobiomodulation groups and between the 4-point 660-nm group and the naive group. A significant difference in the number of fibroblasts was observed between the 830- and 660-nm photobiomodulation groups and the naive and sham groups. When comparing photobiomodulation wavelength, the 830-nm groups were more effective, and we emphasize the groups irradiated at 5 points, which showed an improvement in macroscopic analysis and epidermis thickness, an increase in the number of vessels, and a lower number of fibroblasts on the 14th day after skin injury.
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Affiliation(s)
- Ketlyn Germann Hendler
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil.,Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil
| | - Jaquelini Betta Canever
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil
| | - Luana Gabriel de Souza
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil.,Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil
| | - Laís Mara Siqueira das Neves
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil
| | - Marisa de Cássia Registro Fonseca
- Postgraduate Program in Rehabilitation and Functional Performance, Ribeirão Preto Medical School of the University of São Paulo (USP), Av. dos Bandeirantes, 3900, Ribeirão Preto, São Paulo, 14049-900, Brazil
| | - Heloyse Uliam Kuriki
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil.,Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil
| | - Aderbal da Silva Aguiar Junior
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil.,Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil
| | - Rafael Inácio Barbosa
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil.,Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil
| | - Alexandre Marcio Marcolino
- Laboratory of Assessment and Rehabilitation of the Locomotor Apparatus, Department of Health Sciences, Universidade Federal de Santa Catarina, Campus Araranguá - Campus Mato Alto, Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil. .,Postgraduate Program in Rehabilitation Sciences, Federal University of Santa Catarina (LARAL/UFSC), Rua Pedro João Pereira, 150, Araranguá, Santa Catarina, 88905-120, Brazil.
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do Valle IB, Prazeres PHDM, Mesquita RA, Silva TA, de Castro Oliveira HM, Castro PR, Freitas IDP, Oliveira SR, Gomes NA, de Oliveira RF, Marquiore LF, Macari S, do Amaral FA, Jácome-Santos H, Barcelos LS, Menezes GB, Marques MM, Birbrair A, Diniz IMA. Photobiomodulation drives pericyte mobilization towards skin regeneration. Sci Rep 2020; 10:19257. [PMID: 33159113 PMCID: PMC7648092 DOI: 10.1038/s41598-020-76243-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 10/26/2020] [Indexed: 12/11/2022] Open
Abstract
Photobiomodulation is being widely applied for improving dermal or mucosal wound healing. However, the underlying cellular and molecular processes that directly contribute to its effects remain poorly understood. Pericytes are relevant cells involved in the wound microenvironment and could be one of the main targets of photobiomodulation due to their plasticity and perivascular localization. Herein, we investigate tissue repair under the photobiomodulation stimulus using a pericyte labeled (or reporter) transgenic mice. Using a model of two contralateral back wounds, one the control and the other photoactivated daily (660 nm, 20 mW, 0.71 W/cm2, 5 J/cm2, 7 s, 0.14 J), we showed an overall influx of immune and undifferentiated cells and higher mobilization of a potent pericyte subpopulation (Type-2 pericytes) in the photoactivated wounds in comparison to the controls. Doppler analysis showed a significant increase in the blood flow in the photoactivated wounds, while marked vascular supply was observed histologically. Histochemical analysis has indicated more advanced stages of tissue repair after photoactivation. These data suggest that photobiomodulation significantly accelerates tissue repair through its vascular effects with direct recruitment of pericytes to the injury site.
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Affiliation(s)
- Isabella Bittencourt do Valle
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Ricardo Alves Mesquita
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Tarcília Aparecida Silva
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Pollyana Ribeiro Castro
- Department of Physiology and Biophysics, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Iuri Dornelas Prates Freitas
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil
- School of Dentistry, Faculdade Sete Lagoas, Sete Lagoas, Minas Gerais, Brazil
| | - Sicília Rezende Oliveira
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Natália Aparecida Gomes
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil
| | - Rafaela Férrer de Oliveira
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil
| | - Larissa Fassarela Marquiore
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil
| | - Soraia Macari
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil
| | - Flávio Almeida do Amaral
- Department of Biochemistry and Immunology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Humberto Jácome-Santos
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lucíola Silva Barcelos
- Department of Physiology and Biophysics, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Gustavo Batista Menezes
- Department of Morphology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Alexander Birbrair
- Departament of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ivana Márcia Alves Diniz
- Department of Restorative Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG, 31.270-901, Brazil.
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Chaudary S, Karner L, Weidinger A, Meixner B, Rieger S, Metzger M, Zipperle J, Dungel P. In vitro effects of 635 nm photobiomodulation under hypoxia/reoxygenation culture conditions. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 209:111935. [PMID: 32622295 DOI: 10.1016/j.jphotobiol.2020.111935] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/15/2020] [Accepted: 06/10/2020] [Indexed: 12/18/2022]
Abstract
Photobiomodulation (PBM), especially in the red wavelength range, has been demonstrated to be an effective treatment option for superficial and chronic wounds. However, ischemia and subsequent reperfusion can further challenge wound healing. Therefore, we investigated the effect of pulsed red LED light at 635 nm on cellular function in an in-vitro model of hypoxia/reoxygenation (H/R) challenge. Mouse myoblasts and fibroblasts were incubated in oxygen-deprived starvation medium (hypoxia) for 3 h after which the media was changed to oxygenated, fully supplemented media to simulate reperfusion. Cells were then treated with pulsed red LED light at a wavelength of 635 nm at 40 mW/cm2. Mitochondrial respiratory activity, ATP production and ROS levels were analysed immediately post-illumination. The effects on cellular metabolic activity and proliferation were measured at 6 h and 24 h and apoptosis/necrosis was measured at 24 h post-illumination. Our results show that both cell types reacted differently to H/R challenge and PBM. PBM of H/R-challenged cells enhanced mitochondrial activity and rescued decreased ATP levels, with significant effects in fibroblasts. This was associated with increased cell proliferation rates in both cell types. The increase was again more pronounced in fibroblasts. Our study concluded that PBM with red LED light significantly restored ATP levels during H/R and effectively promoted cell growth under both normoxic and H/R conditions. In clinical applications, PBM has been repeatedly reported to resolve difficult clinical situations in which ischemia/reperfusion injuries are a major issue. Our study confirms the beneficial effects of PBM especially in H/R-challenged cells.
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Affiliation(s)
- Sidrah Chaudary
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Lisa Karner
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Adelheid Weidinger
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Barbara Meixner
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Stefan Rieger
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Magdalena Metzger
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Johannes Zipperle
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria
| | - Peter Dungel
- Ludwig Boltzmann institute for experimental and clinical traumatology, Donaueschingenstrasse 13, 1200 Vienna, Austria.
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Karner L, Drechsler S, Metzger M, Hacobian A, Schädl B, Slezak P, Grillari J, Dungel P. Antimicrobial photodynamic therapy fighting polymicrobial infections – a journey from in vitro to in vivo. Photochem Photobiol Sci 2020; 19:1332-1343. [DOI: 10.1039/d0pp00108b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The batericidal effects of antimicrobial photodynamic therapy (aPDT), using methylene blue as a photosensitizer and pulsed red LED light for activation, were tested in various environments in vitro and in a wound model in mice infected with a fecal bacterial suspension.
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Affiliation(s)
- Lisa Karner
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Susanne Drechsler
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Magdalena Metzger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Ara Hacobian
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Barbara Schädl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
- University Clinic of Dentistry
- Medical University of Vienna
| | - Paul Slezak
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Johannes Grillari
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
| | - Peter Dungel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center
- Vienna
- Austria
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Sitohang IBS, Ramadhiani M, Rachmani K, Utami HS, Marissa M. Combination treatment with light emitting diode and wound dressings in a patient with a venous leg ulcer: a case report. ACTA DERMATOVENEROLOGICA ALPINA PANNONICA ET ADRIATICA 2020. [DOI: 10.15570/actaapa.2020.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Choi SH, Chang SY, Biswas R, Chung PS, Mo S, Lee MY, Ahn JC. Light-emitting diode irradiation using 660 nm promotes human fibroblast HSP90 expression and changes cellular activity and morphology. JOURNAL OF BIOPHOTONICS 2019; 12:e201900063. [PMID: 31066512 DOI: 10.1002/jbio.201900063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/27/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
We evaluated changes in cell viability and morphology in response to low-level light irradiation and underlying variations in the levels of heat shock proteins (HSPs). Human fibroblasts were irradiated with a light-emitting diode (LED) array at 660 nm (50 mW for 15, 30, and 60 minutes). Cell viability and morphological changes were evaluated via epifluorescence analysis; we also assessed cell viability and length changes. The expression levels of adenosine triphosphate (ATP) and various HSPs (HSP27, 60, 70, and 90) were analyzed by immunohistochemical staining, Western blotting and microarray analysis. After LED irradiation, cellular viability and morphology changed. Of the several HSPs analyzed, the HSP90 level increased significantly, suggesting that this protein played roles in the morphological and cellular changes. Thus, low-level irradiation triggered cellular changes mediated by increased HSP90 expression; this may explain why skin irradiation enhances wound-healing.
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Affiliation(s)
- Sun-Hyang Choi
- Medical Laser Research Center, Dankook University, Cheonan, Republic of Korea
| | - So-Young Chang
- Beckman Laser Institute Korea, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Raktim Biswas
- Medical Laser Research Center, Dankook University, Cheonan, Republic of Korea
| | - Phil-Sang Chung
- Beckman Laser Institute Korea, College of Medicine, Dankook University, Cheonan, Republic of Korea
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Sangjoon Mo
- Medical Laser Research Center, Dankook University, Cheonan, Republic of Korea
| | - Min Young Lee
- Beckman Laser Institute Korea, College of Medicine, Dankook University, Cheonan, Republic of Korea
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Jin Chul Ahn
- Medical Laser Research Center, Dankook University, Cheonan, Republic of Korea
- Department of Biomedical Science, College of Medicine, Dankook University, Cheonan, Republic of Korea
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Friedrichsdorf SP, Chavez VEA, Bradaschia-Correa V, Cattaneo PM, Dominguez GC. Infrared Light-Emitting Diode (LED) Effects on Orthodontic Tooth Movement. Braz Dent J 2019; 30:410-416. [PMID: 31340233 DOI: 10.1590/0103-6440201902416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 03/25/2019] [Indexed: 01/13/2023] Open
Abstract
The present study aimed to analyze the effect of LED phototherapy on the presence of hyalinization and root resorption during orthodontic tooth movement (OTM) in rats and to measure the amount of tooth movement. Eighty rats were allocated into two groups: LED and control (CON), where the LED rats were irradiated with infrared LED (850 nm, 30 mW) for 5 min during the first five days of OTM and where controls were not irradiated. Both groups were subdivided into four subgroups (n=10) according to the date of euthanasia (4, 7, 14 and 21 days). Five out of ten LED21 and five of ten CON21 rats were submitted to micro-computed tomography (μCT); μCT scans were taken on days 0, 7, 14 and 21. For histological study, maxillae were processed to light microscopy using Hematoxylin-Eosin (HE) and Tartrate-Resistant Acid Phosphatase (TRAP) histochemistry. The amount of tooth movement did not differ between LED and CON. Hyalinization was observed at the pressure areas in both groups, and it did not show a statistically significant difference between the groups. Root resorption was also observed in both groups after 7 days and it did not represent any differences between the two groups. LED phototherapy was not able to increase the amount of OTM. Similar characteristics of hyalinization and root resorption were observed in both groups.
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Affiliation(s)
- Simone Peixe Friedrichsdorf
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
| | - Victor Elias Arana Chavez
- Department of Biomaterials and Oral Biology, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
| | - Vivian Bradaschia-Correa
- Department of Biomaterials and Oral Biology, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
| | | | - Gladys Cristina Dominguez
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, USP - Universidade de São Paulo, SP, Brazil
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Chang LY, Fan SMY, Liao YC, Wang WH, Chen YJ, Lin SJ. Proteomic Analysis Reveals Anti-Fibrotic Effects of Blue Light Photobiomodulation on Fibroblasts. Lasers Surg Med 2019; 52:358-372. [PMID: 31321797 DOI: 10.1002/lsm.23137] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/27/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND OBJECTIVES This study was aimed at determining the effects of blue light photobiomodulation on primary adult mouse dermal fibroblasts (AMDFs) and the associated signaling pathways. STUDY DESIGN/MATERIALS AND METHODS Cultured AMDFs from adult C57BL/6 mice were irradiated by blue light from a light-emitting diode (wavelength = 463 ± 50 nm; irradiance = 5 mW/cm2 ; energy density = 4-8 J/cm2 ). The cells were analyzed using mass spectrometry for proteomics/phosphoproteomics, AlamarBlue assay for mitochondrial activity, time-lapse video for cell migration, quantitative polymerase chain reaction for gene expression, and immunofluorescence for protein expression. RESULTS Proteomic/phosphoproteomic analysis showed inhibition of extracellular signal-regulated kinases/mammalian target of rapamycin and casein kinase 2 pathways, cell motility-related networks, and multiple metabolic processes, including carbon metabolism, biosynthesis of amino acid, glycolysis/gluconeogenesis, and the pentose phosphate pathway. Functional analysis demonstrated inhibition of mitochondrial activities, cell migration, and mitosis. Expression of growth promoting insulin-like growth factor 1 and fibrosis-related genes, including transforming growth factor β1 (TGFβ1) and collagen type 1 ɑ2 chain diminished. Protein expression of α-smooth muscle actin, an important regulator of myofibroblast functions, was also suppressed. CONCLUSIONS Low-level blue light exerted suppressive effects on AMDFs, including suppression of mitochondrial activity, metabolism, cell motility, proliferation, TGFβ1 levels, and collagen I production. Low-level blue light can be a potential treatment for the prevention and reduction of tissue fibrosis, such as hypertrophic scar and keloids. Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Lo-Yu Chang
- School of Medicine, College of Medicine, National Taiwan University, No. 1, Sec. 1, Jen-Ai Road, Taipei 100, Taiwan
| | - Sabrina Mai-Yi Fan
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 1, Sec. 1, Jen-Ai Road, Taipei 100, Taiwan
| | - Yen-Chen Liao
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan.,Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Rd, Taipei 115, Taiwan
| | - Wei-Hung Wang
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 1, Sec. 1, Jen-Ai Road, Taipei 100, Taiwan
| | - Yu-Ju Chen
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 106, Taiwan.,Institute of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Rd, Taipei 115, Taiwan
| | - Sung-Jan Lin
- Department of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, No. 1, Sec. 1, Jen-Ai Road, Taipei 100, Taiwan.,Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei 100, Taiwan.,Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, No. 1, Sec. 1, Jen-Ai Road, Taipei 100, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, No. 7, Chung-Shan South Road, Taipei 100, Taiwan
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Serrage H, Heiskanen V, Palin WM, Cooper PR, Milward MR, Hadis M, Hamblin MR. Under the spotlight: mechanisms of photobiomodulation concentrating on blue and green light. Photochem Photobiol Sci 2019; 18:1877-1909. [PMID: 31183484 DOI: 10.1039/c9pp00089e] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Photobiomodulation (PBM) describes the application of light at wavelengths ranging from 400-1100 nm to promote tissue healing, reduce inflammation and promote analgesia. Traditionally, red and near-infra red (NIR) light have been used therapeutically, however recent studies indicate that other wavelengths within the visible spectrum could prove beneficial including blue and green light. This review aims to evaluate the literature surrounding the potential therapeutic effects of PBM with particular emphasis on the effects of blue and green light. In particular focus is on the possible primary and secondary molecular mechanisms of PBM and also evaluation of the potential effective parameters for application both in vitro and in vivo. Studies have reported that PBM affects an array of molecular targets, including chromophores such as signalling molecules containing flavins and porphyrins as well as components of the electron transport chain. However, secondary mechanisms tend to converge on pathways induced by increases in reactive oxygen species (ROS) production. Systematic evaluation of the literature indicated 72% of publications reported beneficial effects of blue light and 75% reported therapeutic effects of green light. However, of the publications evaluating the effects of green light, reporting of treatment parameters was uneven with 41% failing to report irradiance (mW cm-2) and 44% failing to report radiant exposure (J cm-2). This review highlights the potential of PBM to exert broad effects on a range of different chromophores within the body, dependent upon the wavelength of light applied. Emphasis still remains on the need to report exposure and treatment parameters, as this will enable direct comparison between different studies and hence enable the determination of the full potential of PBM.
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Affiliation(s)
- Hannah Serrage
- College of Medical and Dental Sciences, University of Birmingham, UK.
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Gaspar D, Peixoto R, De Pieri A, Striegl B, Zeugolis DI, Raghunath M. Local pharmacological induction of angiogenesis: Drugs for cells and cells as drugs. Adv Drug Deliv Rev 2019; 146:126-154. [PMID: 31226398 DOI: 10.1016/j.addr.2019.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 05/12/2019] [Accepted: 06/16/2019] [Indexed: 12/12/2022]
Abstract
The past decades have seen significant advances in pro-angiogenic strategies based on delivery of molecules and cells for conditions such as coronary artery disease, critical limb ischemia and stroke. Currently, three major strategies are evolving. Firstly, various pharmacological agents (growth factors, interleukins, small molecules, DNA/RNA) are locally applied at the ischemic region. Secondly, preparations of living cells with considerable bandwidth of tissue origin, differentiation state and preconditioning are delivered locally, rarely systemically. Thirdly, based on the notion, that cellular effects can be attributed mostly to factors secreted in situ, the cellular secretome (conditioned media, exosomes) has come into the spotlight. We review these three strategies to achieve (neo)angiogenesis in ischemic tissue with focus on the angiogenic mechanisms they tackle, such as transcription cascades, specific signalling steps and cellular gases. We also include cancer-therapy relevant lymphangiogenesis, and shall seek to explain why there are often conflicting data between in vitro and in vivo. The lion's share of data encompassing all three approaches comes from experimental animal work and we shall highlight common technical obstacles in the delivery of therapeutic molecules, cells, and secretome. This plethora of preclinical data contrasts with a dearth of clinical studies. A lack of adequate delivery vehicles and standardised assessment of clinical outcomes might play a role here, as well as regulatory, IP, and manufacturing constraints of candidate compounds; in addition, completed clinical trials have yet to reveal a successful and efficacious strategy. As the biology of angiogenesis is understood well enough for clinical purposes, it will be a matter of time to achieve success for well-stratified patients, and most probably with a combination of compounds.
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Affiliation(s)
- Diana Gaspar
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Rita Peixoto
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Andrea De Pieri
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Proxy Biomedical Ltd., Coilleach, Spiddal, Galway, Ireland
| | - Britta Striegl
- Competence Centre Tissue Engineering for Drug Development (TEDD), Centre for Cell Biology & Tissue Engineering, Institute for Chemistry and Biotechnology, Zurich University of Applied Sciences, Zurich, Switzerland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory (REMODEL), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland; Science Foundation Ireland (SFI) Centre for Research in Medical Devices (CÚRAM), Biomedical Sciences Building, National University of Ireland Galway (NUI Galway), Galway, Ireland
| | - Michael Raghunath
- Competence Centre Tissue Engineering for Drug Development (TEDD), Centre for Cell Biology & Tissue Engineering, Institute for Chemistry and Biotechnology, Zurich University of Applied Sciences, Zurich, Switzerland.
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Photobiomodulation (PBM) promotes angiogenesis in-vitro and in chick embryo chorioallantoic membrane model. Sci Rep 2018; 8:17080. [PMID: 30459437 PMCID: PMC6244005 DOI: 10.1038/s41598-018-35474-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 11/02/2018] [Indexed: 12/22/2022] Open
Abstract
The application of light in various therapeutic settings known as Photobiomodulation (PBM) is well established. Indications are the improvement of wound healing and tissue regeneration, scarring, and perfusion as well as pain therapy. Tissue perfusion is mandatory for successful wound healing. Nevertheless, there is a lack of mechanistic studies. We investigate the potential effect of PBM from light emitting diodes (LED) at 635 nm, 80 mW/cm2, 24 J/cm2 on angiogenesis in a two-part study: 1.) Investigation of the effect of PBM on the proliferation of endothelial cells and on vasculogenesis in a co-culture model of endothelial cells and stem cells. 2.) Investigation of the influence of PBM at chick egg chorioallantoic membrane (CAM) assays with fresh human skin xenografts. In both study phases, we observed a stimulating effect of PBM at 635 nm; in part 1: for proliferation of HUVEC (human umbilical vein endothelial cells) (25833 ± 12859 versus 63002 ± 35760 cells/well, p < 0.05, for cellular network formation (2.1 ± 2.1 versus 4.6 ± 3.5, p < 0.05) and for less cell compactness p = 0.01; in part 2: for the increase of number of vessel junctions per ROI (region of interest) (15.9 ± 2.6 versus 20.8 ± 5.4, p < 0.05). Our results suggest significant promotion of angiogenesis by PBM at 635 nm in vitro and in vivo.
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