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Meyer PF, Maia RR, da Silva RMV, de Morais Carreiro E, Farias SLQ, de Andrade Matias M, de Paiva Bueno FC, Miranda CE, Meleck M, Barbosa ALM. Effectiveness of Light-Emitting Diode Epilation on Different Skin Types: A Pilot Study. Photobiomodul Photomed Laser Surg 2023; 41:277-282. [PMID: 37335619 DOI: 10.1089/photob.2022.0148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023] Open
Abstract
Objective: This study analyzed the histological and immunohistochemical changes in hair follicles submitted to epilation with light-emitting diode (LED). Background: The use of specific wavelengths of LED leads to the absorption of photons by chromophore tissues, enabling different photophysical and photochemical events, bringing therapeutic benefits such as removing body hair. Methods: The sample included five participants, with phototypes II-V, divided into two groups. The volunteers received a session of epilation with the Holonyak® device on the pubic region and right groin, whereas the contralateral side was kept as a control. An energy of 10 J and a cooling temperature of -5°C were used, after which the pain provoked by the equipment was questioned using the analogue pain scale. After 45 days, the punching procedure was performed in the region where skin samples were taken for histological and immunohistochemical analysis. Results: For all phototypes, in the treated area, the follicles and sebaceous glands were in a stage of involution, showing perifollicular inflammatory infiltrate with changes suggestive of apoptosis. The apoptosis process was confirmed by the increase in markers cytokeratin-18 and cleaved caspase 3, in addition to the reduced expression of Blc-2, and the lower cell proliferation (Ki67), reinforcing the action of LED based on the definite involution and resorption of the follicle, through macrophages (CD68) triggered by the inflammatory process. Conclusions: The preliminary results of this study found relevant histological changes and immunohistochemical markers in the epilation process, which may indicate the efficacy of LED in permanent hair removal.
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Affiliation(s)
| | - Rafaella Rêgo Maia
- Physiotherapy Department, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Rodrigo Marcel Valentim da Silva
- Physiotherapy Department, International Research Group, Natal, Brazil
- Physiotherapy Department, Estácio de Sá University, Natal, Brazil
| | | | | | | | | | | | - Michelle Meleck
- Medicine Department, Michelle Meleck Advanced Aesthetics, São Paulo, Brazil
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Ryu JH, Park J, Kim BY, Kim Y, Kim NG, Shin YI. Photobiomodulation ameliorates inflammatory parameters in fibroblast-like synoviocytes and experimental animal models of rheumatoid arthritis. Front Immunol 2023; 14:1122581. [PMID: 37063906 PMCID: PMC10090497 DOI: 10.3389/fimmu.2023.1122581] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 03/16/2023] [Indexed: 03/31/2023] Open
Abstract
IntroductionRheumatoid arthritis (RA) is a chronic destructive inflammatory disease that afflicts over one percent of the world’s population. Current pharmacological treatments remain relatively ineffective. In this context, photobiomodulation (PBM) is a potential resource for the treatment of RA. This study investigates investigate the anti-arthritic effects and related mechanisms of PBM on fibroblast-like synoviocytes (FLSs) from RA patients and a mouse model of collagen-induced arthritis (CIA).MethodsThe RA-FLSs were irradiated with a light emitting diode (LED) at a wavelength of 610 nm for 20 min, and the corresponding power intensities were 5 and 10 mW/cm2. After the LED irradiation, cell viability, proliferation, migration, and invasion assays were performed. Male DBA/1J mice were used to establish an animal model of CIA. Light stimulation with 10 mW/cm2 was applied to the ankle joints via direct contact with the skin for 40 min, daily for 2 weeks.Results and DiscussionPBM significantly reduced tumor necrosis factor (TNF)-α-induced increase in proliferation, migration, and invasion in RA-FLSs, and downregulated the activation of nuclear factor-κappa B (NF-κB) and NLRP3 inflammasome by TNF-α. Moreover, PBM greatly inhibited the induction and development of CIA, resulting in the inhibition of synovial inflammation and cartilage degradation. PBM therapy decreased the serum levels of pro-inflammatory cytokines, while increasing the anti-inflammatory cytokines. PBM suppressed the translocation of NF-κB and activation of NLRP3 inflammasome in the ankle joint. Furthermore, PBM showed a more pronounced anti-arthritic effect when combined with methotrexate (MTX), a disease-modifying anti-rheumatic drug (DMARD). The results showed that the effectiveness of MTX + PBM in CIA is superior to that of either MTX or PBM and that both work synergistically. Therefore, PBM with LED may be a potential therapeutic intervention for against RA.
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Affiliation(s)
- Ji Hyeon Ryu
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Jisu Park
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Bo-Young Kim
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Yeonye Kim
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Nam Gyun Kim
- Medical Research Center of Color Seven, Seoul, Republic of Korea
| | - Yong-Il Shin
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
- Department of Rehabilitation Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea
- *Correspondence: Yong-Il Shin,
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Al-Shudiefat AARS, AM Alzyoud J, Al Najjar SA, Talat S, Bustanji Y, Abu-Irmaileh B. The effects of some natural products compared to synthetic products on the metabolic activity, proliferation, viability, migration, and wound healing in sheep tenocytes. Saudi J Biol Sci 2022; 29:103391. [PMID: 35942163 PMCID: PMC9356204 DOI: 10.1016/j.sjbs.2022.103391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 07/17/2022] [Accepted: 07/17/2022] [Indexed: 11/30/2022] Open
Abstract
Background Tendinopathy or tendon injuries can affect many people, causing a huge impact on their movements and maintaining standing posture. Treatment options include physiotherapy, anti-inflammatory drugs, and alternative medicine. The use of physiotherapy or anti-inflammatory drugs may cause some side effects like pain and liver failure, respectively, therefore, alternative medicine will be a better choice. Method Tenocytes were isolated from sheep Achilles tendon and used in Alamar blue assay to assess the metabolic activity, proliferation, and viability of tenocytes over 24 hrs. and 48 hrs., using natural and synthetic products [i.e., olive oil, oleic acid, corn oil, Inula viscosa oil, Inula viscosa extract, Nigella sativa oil, naproxen sodium, and paracetamol and LED photobiomodulation]. Furthermore, tenocytes viability was assessed by FDA/PI stain. For migration and healing of a wound, the scratch assay was used. Results Alamar blue assay over 24 hrs. showed that Nigella sativa oil increased the metabolic activity, proliferation, and viability of tenocytes significantly, while Alamar blue over 48 hrs. showed that oleic acid, LED, and their combination increased these parameters for tenocytes significantly. Olive oil increased the viability of tenocytes significantly using FDA/PI stains. Scratch assay revealed that Inula viscosa oil, Inula viscosa extract, and paracetamol increased tenocyte migration and healing significantly. Conclusion Nigella sativa oil, olive oil, oleic acid, Inula viscosa oil, and Inula viscosa extract may be used as an alternative therapy for tendinopathy with less side effects.
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Affiliation(s)
- Abd Al-Rahman Salem Al-Shudiefat
- Department of Medical, Laboratory Sciences Faculty of Applied Medical Sciences, The Hashemite University, Zarqa 13133, Jordan
- Corresponding author at: Department of Medical Laboratory Sciences Faculty of Applied Medical Sciences, The Hashemite University, Zarqa 13133, Jordan.
| | - Jihad AM Alzyoud
- Department of Basic Medical Sciences, Faculty of Medicine, The Hashemite University, Zarqa 13133, Jordan
| | - Saleh A Al Najjar
- Jordan University Hospital, The University of Jordan, Amman 11942, Jordan
| | - Seham Talat
- Department of Medical laboratory Sciences , College of science, Mutah University, Karak 61710, Jordan
| | - Yasser Bustanji
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, UAE
- School of Pharmacy, The University of Jordan, Amman 11942, Jordan
| | - Bashaer Abu-Irmaileh
- Hamdi Mango Centre for Scientific Research, The University of Jordan, Amman 11942, Jordan
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Zhukova ES, Shcherbatyuk TG, Chernigina IA, Chernov VV, Gapeyev AB. Violet-Blue Light Photobiomodulation of the Dynamics of Tumor Growth and Prooxidant-Antioxidant Balance in the Body of Tumor Carriers. Biophysics (Nagoya-shi) 2022. [DOI: 10.1134/s0006350922030241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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5
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The use of LED therapy to treat synovial joints disorders: scoping review. Lasers Med Sci 2021; 37:701-721. [PMID: 34258669 DOI: 10.1007/s10103-021-03372-4] [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: 03/29/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
The aim of this scoping review was to assess the extent of the literature on the use of LED therapy to treat synovial joint disorders. The JBI methodology for scoping reviews was followed. The databases used were PUBMED, EMBASE, Scopus, Web of Science, LILACS, PEDro, Cochrane Database, Google Scholar and ProQuest. To be included, studies should have used LED as therapy, and include at least one measure related to the structures of any synovial joint. The search strategy included all keywords and indexed terms identified in the articles. Studies in any language and in any year, whether published or not, were included. The analysis of the studies was carried out by two independent reviewers. Data were extracted from articles using a data extraction tool developed by the reviewers. After carrying out the definitive search and selection, 47 publications were included: 15 clinical trials, 8 clinical protocols, 12 animal studies, 4 in vitro studies and 8 reviews on the topic. Studies have shown great variability from the device and number of diodes used, to the parameters and dosimetry chosen. Some positive effects were observed: on cell proliferation (in vitro); on anti-inflammatory biomarkers (murine models) and on pain scale (clinical trials - TMD). Although, the cause of non-significant results in clinical trials was rarely discussed: depth of penetration, dosimetry, follow-up time? Thus, future studies should focus on answering more elementary aspects about the LED effect when used alone in different synovial joints.
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Bonvicini JFS, Basso FG, de Souza Costa CA, Soares CJ, Turrioni AP. Photobiomodulation effect of red LED (630 nm) on the free radical levels produced by pulp cells under stress conditions. Lasers Med Sci 2021; 37:607-617. [PMID: 33826014 DOI: 10.1007/s10103-021-03309-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/28/2021] [Indexed: 12/13/2022]
Abstract
The aim of this study was to assess the ability of red light emitting diodes (LED) to modulate oxidative stress in human dental pulp fibroblasts (HDPFs) when different irradiation parameters are employed. Cells from primary teeth were seeded (100,000 cells/well) in 24-well plates in culture medium (DMEM). At 24 h after incubation, the culture medium was replaced with DMEM containing 10 μg/mL lipopolysaccharide (LPS). Thereafter, the cells were irradiated (LED 630 nm, 0.04 W/cm2 and 0.08 W/cm2) at 0 J/cm2 (control group), 4 J/cm2, 15 J/cm2, and 30 J/cm2; and their viability (MTT assay), number (Trypan Blue), synthesis of nitric oxide (NO) (Griess reagent), and reactive oxygen species (ROS) (fluorescence probe, DCFH-DA) were assessed. The Kruskal-Wallis and Mann-Whitney statistical tests using Bonferroni correction were employed (significance level of 5%). Compared to that in control fibroblasts, increased viability was observed in HDPFs exposed to LPS and irradiated with 15 J/cm2 and 30 J/cm2 at 0.04 W/cm2 and 4 J/cm2 and 15 J/cm2 at 0.08 W/cm2 (p < 0.05). Exposure to 4 J/cm2 at 0.04 W/cm2 and 15 J/cm2 and 30 J/cm2 at 0.08 W/cm2 modulated the oxidative stress in cells relative to that observed in non-irradiated LPS-treated pulp cells (p < 0.05). It was concluded that the irradiation strategies of using red LED with radiant exposures of 15 J/cm2 and 30 J/cm2 at 0.04 W/cm2 and 15 J/cm2 at 0.08 W/cm2 were the best parameters to decrease NO and ROS concentration and to stimulate viability of HDPFs exposed to LPS challenge.
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Affiliation(s)
- Jéssica Fernanda Sena Bonvicini
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Uberlândia, UFU, Av. Pará 1720, Umuarama, Uberlândia, MG, 38400902, Brazil
| | | | | | - Carlos José Soares
- Department of Operative Dentistry and Dental Materials, Federal University of Uberlândia, UFU, Uberlândia, MG, Brazil
| | - Ana Paula Turrioni
- Department of Pediatric Dentistry, School of Dentistry, Federal University of Uberlândia, UFU, Av. Pará 1720, Umuarama, Uberlândia, MG, 38400902, Brazil.
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In Vitro Evidences of Different Fibroblast Morpho-Functional Responses to Red, Near-Infrared and Violet-Blue Photobiomodulation: Clues for Addressing Wound Healing. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10217878] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Although photobiomodulation (PBM) has proven promising to treat wounds, the lack of univocal guidelines and of a thorough understanding of light–tissue interactions hampers its mainstream adoption for wound healing promotion. This study compared murine and human fibroblast responses to PBM by red (635 ± 5 nm), near-infrared (NIR, 808 ± 1 nm), and violet-blue (405 ± 5 nm) light (0.4 J/cm2 energy density, 13 mW/cm2 power density). Cell viability was not altered by PBM treatments. Light and confocal laser scanning microscopy and biochemical analyses showed, in red PBM irradiated cells: F-actin assembly reduction, up-regulated expression of Ki67 proliferation marker and of vinculin in focal adhesions, type-1 collagen down-regulation, matrix metalloproteinase-2 and metalloproteinase-9 expression/functionality increase concomitant to their inhibitors (TIMP-1 and TIMP-2) decrease. Violet-blue and even more NIR PBM stimulated collagen expression/deposition and, likely, cell differentiation towards (proto)myofibroblast phenotype. Indeed, these cells exhibited a higher polygonal surface area, stress fiber-like structures, increased vinculin- and phospho-focal adhesion kinase-rich clusters and α-smooth muscle actin. This study may provide the experimental groundwork to support red, NIR, and violet-blue PBM as potential options to promote proliferative and matrix remodeling/maturation phases of wound healing, targeting fibroblasts, and to suggest the use of combined PBM treatments in the wound management setting.
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Plavskii V, Mikulich A, Barulin N, Ananich T, Plavskaya L, Tretyakova A, Leusenka I. Comparative Effect of Low‐intensity Laser Radiation in Green and Red Spectral Regions on Functional Characteristics of Sturgeon Sperm. Photochem Photobiol 2020; 96:1294-1313. [DOI: 10.1111/php.13315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Vitaly Plavskii
- The State Scientific Institution «B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus» Minsk Belarus
| | - Aliaksandr Mikulich
- The State Scientific Institution «B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus» Minsk Belarus
| | | | - Tatsiana Ananich
- The State Scientific Institution «B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus» Minsk Belarus
| | - Ludmila Plavskaya
- The State Scientific Institution «B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus» Minsk Belarus
| | - Antonina Tretyakova
- The State Scientific Institution «B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus» Minsk Belarus
| | - Ihar Leusenka
- The State Scientific Institution «B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus» Minsk Belarus
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Li W, Hu X, Lu X, Liu J, Chen Z, Zhou X, Liu M, Liu S. RNA-Seq analysis revealed the molecular mechanisms of photobiomodulation effect on human fibroblasts. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2020; 36:299-307. [PMID: 32187726 DOI: 10.1111/phpp.12554] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 02/28/2020] [Accepted: 03/13/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND The photobiomodulation (PBM) effect has been applied to various clinical therapy for a long time. However, the mechanism related to the PBM effect in terms of wavelengths has been lack of in-depth study, except that ultraviolet radiation has attracted much attention due to its strong cell-killing effect. PURPOSE To clarify the principle behind PBM and the main mechanism of improvement. METHODS To carry on this study, we created light equipment using three LED chips, which emit 390 nm ultraviolet radiation, 415 nm blue light and 660 nm red light, respectively. We choose human fibroblasts (HF) to be irradiated by three different wavelengths for PBM test. In this study, we used cell counting kit (CCK-8) test to show the cell proliferation roughly and reported on a systematic RNA sequencing (RNA-seq) analysis at transcriptional expression levels from HF, which accepted PBM of different wavelengths of light. RESULTS We found that 415 nm blue light inhibited cell proliferation and 660 nm red light stimulated cell proliferation while 390 nm ultraviolet radiation has little influence on cell proliferation. Furthermore, RNA-seq results showed that CSF1R, PPP3CC, ITGAL, ITGAM, IL2RB, and several other differentially expressed genes (DEGs) are involved in the cell proliferation. Relative DEGs values for matrix metalloproteinases (MMPs) gene family have shown a great difference in blue and red light radiation especially on MMP25, MMP9, MMP21, and MMP13. CONCLUSION Taken together, the results provide a valuable resource to describe the variation of HFs under PBM of different light at gene level.
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Affiliation(s)
- Wenqi Li
- Institute for Electric Light Sources, Fudan University, Shanghai, China.,Engineering Research Centre of Advanced Lighting Technology, Ministry of Education, Shanghai, China.,Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, China
| | - Xiaojian Hu
- Institute for Electric Light Sources, Fudan University, Shanghai, China.,Engineering Research Centre of Advanced Lighting Technology, Ministry of Education, Shanghai, China
| | - Xi Lu
- Department of Stomatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jie Liu
- Tongji University School of Medicine, Stem Cell Translational Research Center, Tongji Hospital, Shanghai, China
| | - Zeqing Chen
- Institute for Electric Light Sources, Fudan University, Shanghai, China.,Engineering Research Centre of Advanced Lighting Technology, Ministry of Education, Shanghai, China.,Institute of Future Lighting, Academy for Engineering and Technology, Fudan University, Shanghai, China
| | - Xiaoli Zhou
- Institute for Electric Light Sources, Fudan University, Shanghai, China.,Engineering Research Centre of Advanced Lighting Technology, Ministry of Education, Shanghai, China
| | - Muqing Liu
- Institute for Electric Light Sources, Fudan University, Shanghai, China.,Engineering Research Centre of Advanced Lighting Technology, Ministry of Education, Shanghai, China
| | - Shangfeng Liu
- Oral Biomedical Engineering Laboratory, Shanghai Stomatological Hospital, Fudan University, Shanghai, China
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Synergistic effect of phototherapy and chemotherapy on bladder cancer cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 193:148-154. [PMID: 30884284 DOI: 10.1016/j.jphotobiol.2019.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/21/2019] [Accepted: 02/15/2019] [Indexed: 11/22/2022]
Abstract
Drug resistance as an important barrier to cancer treatment, has a close relation with alteration of cancer metabolism. Therefore, in this study the synergistic effect of phototherapy and chemotherapy were investigated on the bladder cancer cells viability. The cytotoxicity effect of blue light irradiation was measured by the MTT assay. Glucose consumption, lactate and ammonium formation were analyzed in the blue LED-irradiated cancer cells culture. Also, the expression of some genes involved in apoptosis and epithelial-mesenchymal transition was assessed using real-time PCR in comparison with the control group. The analysis of the results indicated that blue light irradiation inhibited the cell viability in a dose-dependent manner. Blue light irradiation decreased the cell viability by 7% and 19% (p < .05) in 5637 cells at doses of 8.7 J/cm2 and 17.5 J/cm2 in comparison with the control group respectively. Glucose consumption, lactate and ammonium formation diminished in the blue LED-irradiated 5637 cells in both doses. The real time PCR results indicated that the expression of Bax increased in blue light-irradiated cells. In addition, the cell cycle analysis showed that blue light irradiation arrested the bladder cancer in the G1 phase. Also, the effect of combination therapy on cancer cells was investigated in presence of blue light irradiation and cisplatin. The obtained results of the MTT assay indicated that blue light irradiation enhance the cytotoxicity effect of cisplatin on bladder cancer cells.
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Effect of light-emitting diodes, platelet-rich plasma, and their combination on the activity of sheep tenocytes. Lasers Med Sci 2018; 34:759-766. [PMID: 30317401 DOI: 10.1007/s10103-018-2657-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 10/01/2018] [Indexed: 01/26/2023]
Abstract
Healthy tendons play an important role in joint movements and subjected to a group of pathologies called tendinopathy due to multiple factors. Tendons have a slowly repairing process due to the low vascularity and cellularity. Treatment options aimed at potentiating the healing response and relieving symptoms. Phototherapy and platelet-rich plasma were novel treatment modalities in tendons based on photobiomodulation and growth factors during healing, and the results were encouraging suggesting calibrating treatment parameters. This study utilizes cell culture to explore the potential effect of light-emitting diode and/or growth factors in the form of platelet-rich plasma (PRP) on the activity of tenocytes isolated from sheep Achilles tendons by measuring the cell metabolism and cell mobility using cell viability and migration assays to proof safety and confirm activity. Results showed that sheep tenocyte-cultured groups treated with 5% platelet-rich plasma alone or combined with 4 J/cm2 light-emitting diode have increased viability significantly when compared to control group after a 48 h, while light-emitting diode treatment has not decreased cell migration significantly when compared with control. Result suggests that using platelet-rich plasma alone or combined with light-emitting diode might have potential to enhance healing response at the conditions applied. PRP could enhance proliferation while LED could enhance migration and proliferation. Further research is needed at longer durations.
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Carvalho-Costa TM, Mendes MT, da Silva MV, Rodrigues V, Bruschi Thedei GCM, Oliveira CJF, Thedei G. Light-Emitting Diode at 460 ± 20 nm Increases the Production of IL-12 and IL-6 in Murine Dendritic Cells. Photomed Laser Surg 2017. [DOI: 10.1089/pho.2016.4244] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
| | - Maria Tays Mendes
- Laboratory of Immunology, Federal University of Triângulo Mineiro, Uberaba, Brazil
| | | | - Virmondes Rodrigues
- Laboratory of Immunology, Federal University of Triângulo Mineiro, Uberaba, Brazil
| | | | | | - Geraldo Thedei
- Laboratory of Molecular Biology, University of Uberaba, Uberaba, Brazil
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Alzyoud JAM, Khan IM, Rees SG. In vitro studies to evaluate the effect of varying culture conditions and IPL fluencies on tenocyte activities. Lasers Med Sci 2017; 32:1561-1570. [PMID: 28770401 DOI: 10.1007/s10103-017-2279-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 06/29/2017] [Indexed: 01/26/2023]
Abstract
Tendons are dense, fibrous connective tissues which carry out the essential physiological role of transmitting mechanical forces from skeletal muscle to bone. From a clinical perspective, tendinopathy is very common, both within the sporting arena and amongst the sedentary population. Studies have shown that light therapy may stimulate tendon healing, and more recently, intense pulsed light (IPL) has attracted attention as a potential treatment modality for tendinopathy; however, its mechanism of action and effect on the tendon cells (tenocytes) is poorly understood. The present study therefore investigates the influence of IPL on an in vitro bovine tendon model. Tenocytes were irradiated with IPL at different devise settings and under variable culture conditions (e.g. utilising cell culture media with or without the pH indicator dye phenol red), and changes in tenocyte viability and migration were subsequently investigated using Alamar blue and scratch assays, respectively. Our data demonstrated that IPL fluencies of up to 15.9 J/cm2 proved harmless to the tenocyte cultures (this was the case using culture media with or without phenol red) and resulted in a significant increase in cell viability under certain culture conditions. Furthermore, IPL treatment of tenocytes did not affect the rate of cell migration. This study demonstrates that irradiation with IPL is not detrimental to the tenocytes and may increase their viability under certain conditions, thus validating our in vitro model. Further studies are required to elucidate the effects of IPL application in the clinical situation.
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Affiliation(s)
- Jihad A M Alzyoud
- Faculty of Allied Health Sciences, Hashemite University, Zarqa, Jordan.
| | - Ilyas M Khan
- Swansea University Medical School, ILS2, Swansea, SA2 8SS, UK
| | - Sarah G Rees
- Swansea University Medical School, Grove Building, Swansea, SA2 8PP, UK
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Yang MY, Chang CJ, Chen LY. Blue light induced reactive oxygen species from flavin mononucleotide and flavin adenine dinucleotide on lethality of HeLa cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017. [PMID: 28633062 DOI: 10.1016/j.jphotobiol.2017.06.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Photodynamic therapy (PDT) is a safe and non-invasive treatment for cancers and microbial infections. Various photosensitizers and light sources have been developed for clinical cancer therapies. Flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) are the cofactor of enzymes and are used as photosensitizers in this study. Targeting hypoxia and light-triggering reactive oxygen species (ROS) are experimental strategies for poisoning tumor cells in vitro. HeLa cells are committed to apoptosis when treated with FMN or FAD and exposed to visible blue light (the maximum emitted wavelength of blue light is 462nm). Under blue light irradiation at 3.744J/cm2 (=0.52mW/cm2 irradiated for 2h), the minimal lethal dose is 3.125μM and the median lethal doses (LD50) for FMN and FAD are 6.5μM and 7.2μM, respectively. Individual exposure to visible blue light irradiation or riboflavin photosensitizers does not produce cytotoxicity and no side effects are observed in this study. The western blotting results also show that an intrinsic apoptosis pathway is activated by the ROS during photolysis of riboflavin analogues. Blue light triggers the cytotoxicity of riboflavins on HeLa cells in vitro. Based on these results, this is a feasible and efficient of PDT with an intrinsic photosensitizer for cancer research.
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Affiliation(s)
- Ming-Yeh Yang
- Institute of Medical Sciences, Tzu-Chi University, Hualien 970, Taiwan; Department of Molecular Biology and Human Genetics, Tzu-Chi University, Hualien 970, Taiwan
| | - Chih-Jui Chang
- Department of Molecular Biology and Human Genetics, Tzu-Chi University, Hualien 970, Taiwan
| | - Liang-Yü Chen
- Department of Biotechnology, Ming-Chuan University, Gui-Shan 333, Taiwan.
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Lee HS, Jung SE, Kim SK, Kim YS, Sohn S, Kim YC. Low-Level Light Therapy with 410 nm Light Emitting Diode Suppresses Collagen Synthesis in Human Keloid Fibroblasts: An In Vitro Study. Ann Dermatol 2017; 29:149-155. [PMID: 28392641 PMCID: PMC5383739 DOI: 10.5021/ad.2017.29.2.149] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/31/2016] [Accepted: 06/28/2016] [Indexed: 01/22/2023] Open
Abstract
Background Keloids are characterized by excessive collagen deposition in the dermis, in which transforming growth factor β (TGF-β)/Smad signaling plays an important role. Low-level light therapy (LLLT) is reported as effective in preventing keloids in clinical reports, recently. To date, studies investigating the effect of LLLT on keloid fibroblasts are extremely rare. Objective We investigated the effect of LLLT with blue (410 nm), red (630 nm), and infrared (830 nm) light on the collagen synthesis in keloid fibroblasts. Methods Keloid fibroblasts were isolated from keloid-revision surgery samples and irradiated using 410-, 630-, 830-nm light emitting diode twice, with a 24-hour interval at 10 J/cm2. After irradiation, cells were incubated for 24 and 48 hours and real-time quantitative reverse transcription polymerase chain reaction was performed. Western blot analysis was also performed in 48 hours after last irradiation. The genes and proteins of collagen type I, TGF-β1, Smad3, and Smad7 were analyzed. Results We observed no statistically significant change in the viability of keloid fibroblasts after irradiation. Collagen type I was the only gene whose expression significantly decreased after irradiation at 410 nm when compared to the non-irradiated control. Western blot analysis showed that LLLT at 410 nm lowered the protein levels of collagen type I compared to the control. Conclusion LLLT at 410 nm decreased the expression of collagen type I in keloid fibroblasts and might be effective in preventing keloid formation in their initial stage.
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Affiliation(s)
- Hyun Soo Lee
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Soo-Eun Jung
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Sue Kyung Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - You-Sun Kim
- Department of Biochemistry, Ajou University School of Medicine, Suwon, Korea
| | - Seonghyang Sohn
- Laboratory of Cell Biology, Ajou University School of Medicine, Suwon, Korea
| | - You Chan Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
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Almeida LDFDD, Turrioni APS, Basso FG, Montoro LA, Souza-Costa CAD, Hebling J. Red LED Photobiomodulates the Metabolic Activity of Odontoblast-Like Cells. Braz Dent J 2017; 27:375-80. [PMID: 27652696 DOI: 10.1590/0103-6440201600152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 05/06/2016] [Indexed: 11/21/2022] Open
Abstract
Phototherapy has been indicated as an adjunctive treatment for tissue repair, including the pulp tissue. However, there are no defined irradiation parameters, which is a great challenge to the clinical use of phototherapy. The aim of this study was to evaluate the effect of phototherapy with red LED on odontoblast-like MDPC-23 cells, using different parameter settings. Cells were seeded (104 cells/cm²), incubated for 12 h in complete DMEM and then the culture medium was replaced by DMEM supplemented with 0.5% FBS. After 12 h incubation, irradiations were performed (630±10 nm) using a LEDTable device with a 20 or 40 mW/cm² power density and 2 J/cm² energy dose. The cells were irradiated 1 or 3 times, at 1 min intervals. Non-irradiated cells served as control. The cells were evaluated for viability (MTT assay), total protein dosage (Lowry method) and number of viable cells (Trypan blue). The data (n=12 per group) were submitted to Kruskal-Wallis and Mann-Whitney tests (p=0.05). A single irradiation with 20 or 40 mW/cm² enhanced cell viability, which was negatively affected after 3 consecutive irradiations. Cells irradiated only once with 20 mW/cm² produced more proteins compared with those irradiated with 40 mW/cm². Reduction in the number of viable cells occurred only after 3 consecutive irradiations with 40 mW/cm². In conclusion, red LED was capable of biomodulating the metabolic activities of cultured MDPC-23 odontoblast-like cells. The best cell biostimulation was obtained when a single irradiation with 2 J/cm2 energy dose and 20 mW/cm2 power density was delivered to the pulp cells.
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Affiliation(s)
| | - Ana Paula Silveira Turrioni
- Department of Orthodontics and Pediatric Dentistry, Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Fernanda Gonçalves Basso
- Department of Orthodontics and Pediatric Dentistry, Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Liege Aldrovandi Montoro
- Department of Orthodontics and Pediatric Dentistry, Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Carlos Alberto de Souza-Costa
- Department of Physiology and Pathology, Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
| | - Josimeri Hebling
- Department of Orthodontics and Pediatric Dentistry, Araraquara Dental School, UNESP - Universidade Estadual Paulista, Araraquara, SP, Brazil
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Different effects of energy dependent irradiation of red and green lights on proliferation of human umbilical cord matrix-derived mesenchymal cells. Lasers Med Sci 2015; 31:255-61. [DOI: 10.1007/s10103-015-1846-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 11/30/2015] [Indexed: 12/31/2022]
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Phototherapy with LED light modulates healing processes in an in vitro scratch-wound model using 3 different cell types. Dermatol Surg 2015; 41:261-8. [PMID: 25654197 DOI: 10.1097/dss.0000000000000266] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND An effective way of modulating wound healing processes, including proliferation and apoptosis, is low-level light therapy. Because of several disadvantages of lasers, light-emitting diodes (LEDs) could be more feasible light sources. OBJECTIVE To evaluate and compare the effects of blue and red light from LEDs on different cell types in an in vitro scratch-wound model. METHODS Monolayers of C2C12 myoblasts, NIH/3T3 fibroblasts, and BICR10 keratinocytes were injured by mechanical scraping. Cells were illuminated on 5 consecutive days for 10 minutes by LED at 470 or 630 nm. Effects of light on in vitro wound healing were evaluated by analyzing time to closure, proliferation, apoptosis, and necrosis rates. RESULTS Illumination substantially affected cell viability and cell growth. Blue light strongly decreased proliferation and augmented apoptosis in all 3 cell types and increased necrosis rates in C2C12 and NIH/3T3 cells. In contrast, red light did not alter apoptosis in either cell type but promoted proliferation in all 3 cell types with significant effects in C2C12 and NIH/3T3 cells and shortened time to closure in all 3 cell types. CONCLUSION Light-emitting diode light illumination could be a therapeutic option and positively affect wound healing processes. By choosing appropriate wavelengths, variable effects can be achieved.
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