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Joshi P, Soares JM, Martins GM, Zucolotto Cocca LH, De Boni L, de Oliveira KT, Bagnato VS, Blanco KC. Enhancing the efficacy of antimicrobial photodynamic therapy through curcumin modifications. Photochem Photobiol 2024. [PMID: 39049138 DOI: 10.1111/php.14000] [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: 01/31/2024] [Revised: 05/04/2024] [Accepted: 06/30/2024] [Indexed: 07/27/2024]
Abstract
Curcumin serves as a photosensitizer (PS) in the context of microbial inactivation when subjected to light exposure, to produce reactive oxygen species, which exhibit efficacy in eradicating microorganisms. This remarkable property underscores the growing potential of antimicrobial photodynamic therapy (aPDT) in the ongoing fight against bacterial infections. Considering this, we investigate the efficacy of various in vitro curcumin formulations within a PDT protocol designed to target Staphylococcus aureus. Specifically, we conduct a comparative analysis involving synthetic curcumin (Cur-Syn) and curcumin derivatives modified with chlorine (Cl), selenium (Se), and iodine (I) (Cur-Cl, Cur-Se, Cur-I). To assess the impact of aPDT, we subject S. aureus to incubation with curcumin, followed by irradiation at 450 nm with energy doses of 3.75, 7.5, and 15 J/cm2. Our investigation encompasses an evaluation of PS uptake and photobleaching across the various curcumin variants. Notably, all three modifications (Cur-Cl, Cur-Se, Cur-I) induce a significant reduction in bacterial viability, approximately achieving a 3-log reduction. Interestingly, the uptake kinetics of Cur-Syn and Cur-Se exhibit similarities, reaching saturation after 20 min. Our findings suggest that modifications to curcumin have a discernible impact on the photodynamic properties of the PS molecule.
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Affiliation(s)
- Priyanka Joshi
- PPGBiotec, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Jennifer M Soares
- São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Guilherme M Martins
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Leandro H Zucolotto Cocca
- São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil
- Grupo de Fotônica, Institute of Physics, Federal University of Goiás, Goiânia, Goiás, Brazil
| | - Leonardo De Boni
- São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Kleber T de Oliveira
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, Brazil
| | - Vanderlei S Bagnato
- PPGBiotec, Federal University of São Carlos, São Carlos, São Paulo, Brazil
- São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil
- Biomedical Engineering, Texas A&M University, College Station, Texas, USA
| | - Kate C Blanco
- São Carlos Institute of Physics, University of São Paulo, São Carlos, São Paulo, Brazil
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Caverzán MD, Oliveda PM, Beaugé L, Palacios RE, Chesta CA, Ibarra LE. Metronomic Photodynamic Therapy with Conjugated Polymer Nanoparticles in Glioblastoma Tumor Microenvironment. Cells 2023; 12:1541. [PMID: 37296661 PMCID: PMC10252555 DOI: 10.3390/cells12111541] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
Alternative therapies such as photodynamic therapy (PDT) that combine light, oxygen and photosensitizers (PSs) have been proposed for glioblastoma (GBM) management to overcome conventional treatment issues. An important disadvantage of PDT using a high light irradiance (fluence rate) (cPDT) is the abrupt oxygen consumption that leads to resistance to the treatment. PDT metronomic regimens (mPDT) involving administering light at a low irradiation intensity over a relatively long period of time could be an alternative to circumvent the limitations of conventional PDT protocols. The main objective of the present work was to compare the effectiveness of PDT with an advanced PS based on conjugated polymer nanoparticles (CPN) developed by our group in two irradiation modalities: cPDT and mPDT. The in vitro evaluation was carried out based on cell viability, the impact on the macrophage population of the tumor microenvironment in co-culture conditions and the modulation of HIF-1α as an indirect indicator of oxygen consumption. mPDT regimens with CPNs resulted in more effective cell death, a lower activation of molecular pathways of therapeutic resistance and macrophage polarization towards an antitumoral phenotype. Additionally, mPDT was tested in a GBM heterotopic mouse model, confirming its good performance with promising tumor growth inhibition and apoptotic cell death induction.
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Affiliation(s)
- Matías Daniel Caverzán
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto X5800BIA, Argentina
- Departamento de Patología Animal, Facultad de Agronomía y Veterinaria, Universidad Nacional de Río Cuarto, Río Cuarto X5800BIA, Argentina
| | - Paula Martina Oliveda
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Fisicoquímicas y Naturales, UNRC, Río Cuarto X5800BIA, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), Universidad Nacional de Río Cuarto (UNRC) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto X5800BIA, Argentina
| | - Lucía Beaugé
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto X5800BIA, Argentina
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Fisicoquímicas y Naturales, UNRC, Río Cuarto X5800BIA, Argentina
| | - Rodrigo Emiliano Palacios
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto X5800BIA, Argentina
- Departamento de Química, Facultad de Ciencias Exactas, Fisicoquímicas y Naturales, UNRC, Río Cuarto X5800BIA, Argentina
| | - Carlos Alberto Chesta
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), Universidad Nacional de Río Cuarto (UNRC) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto X5800BIA, Argentina
- Departamento de Química, Facultad de Ciencias Exactas, Fisicoquímicas y Naturales, UNRC, Río Cuarto X5800BIA, Argentina
| | - Luis Exequiel Ibarra
- Departamento de Biología Molecular, Facultad de Ciencias Exactas, Fisicoquímicas y Naturales, UNRC, Río Cuarto X5800BIA, Argentina
- Instituto de Biotecnología Ambiental y Salud (INBIAS), Universidad Nacional de Río Cuarto (UNRC) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Río Cuarto X5800BIA, Argentina
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3
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Lan X, Liu Y, Wang L, Wang H, Hu Z, Dong H, Yu Z, Yuan Y. A review of curcumin in food preservation: Delivery system and photosensitization. Food Chem 2023; 424:136464. [PMID: 37247602 DOI: 10.1016/j.foodchem.2023.136464] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/01/2023] [Accepted: 05/23/2023] [Indexed: 05/31/2023]
Abstract
As a natural polyphenol, curcumin has been used as an alternative to synthetic preservatives in food preservation. Different from previous reviews that mainly focus on the pH-responsive discoloration of curcumin to detect changes in food quality in real time, this paper focuses on the perspective of the delivery system and photosensitization of curcumin for food preservation. The delivery system is an effective means to overcome the challenges of curcumin like instability, hydrophobicity, and low bioavailability. Curcumin as a photosensitizer can effectively sterilize to preserve food. The practical fresh-keeping effects of the delivery system and photosensitization of curcumin on foods (fruits/vegetables, animal-derived food, and grain) were summarized comprehensively, including shelf-life extension, maintenance of physicochemical properties, nutritional quality, and sensory. Future research should focus on the development of novel curcumin-loaded materials used for food preservation, and most importantly, the biosafety and accumulation toxicity associated with these materials should be explored.
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Affiliation(s)
- Xiang Lan
- Hisense Home Appliance Group Co., Ltd., Qingdao 266100, China
| | - Yueyue Liu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Lei Wang
- Hisense Home Appliance Group Co., Ltd., Qingdao 266100, China
| | - Haiyan Wang
- Hisense Home Appliance Group Co., Ltd., Qingdao 266100, China
| | - Zhe Hu
- Hisense Ronshen (Guangdong) Refrigerator Co., Ltd., Foshan 528303, China
| | - Hao Dong
- Hisense Home Appliance Group Co., Ltd., Qingdao 266100, China
| | - Zhiwen Yu
- Hisense Home Appliance Group Co., Ltd., Qingdao 266100, China
| | - Yongkai Yuan
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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4
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Kah G, Chandran R, Abrahamse H. Curcumin a Natural Phenol and Its Therapeutic Role in Cancer and Photodynamic Therapy: A Review. Pharmaceutics 2023; 15:pharmaceutics15020639. [PMID: 36839961 PMCID: PMC9962422 DOI: 10.3390/pharmaceutics15020639] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/07/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Cancer continues to cause an alarming number of deaths globally, and its burden on the health system is significant. Though different conventional therapeutic procedures are exploited for cancer treatment, the prevalence and death rates remain elevated. These, therefore, insinuate that novel and more efficient treatment procedures are needed for cancer. Curcumin, a bioactive, natural, phenolic compound isolated from the rhizome of the herbaceous plant turmeric, is receiving great interest for its exciting and broad pharmacological properties. Curcumin presents anticancer therapeutic capacities and can be utilized as a photosensitizing drug in cancer photodynamic therapy (PDT). Nonetheless, curcumin's poor bioavailability and related pharmacokinetics limit its clinical utility in cancer treatment. This review looks at the physical and chemical properties, bioavailability, and safety of curcumin, while focusing on curcumin as an agent in cancer therapy and as a photosensitizer in cancer PDT. The possible mechanisms and cellular targets of curcumin in cancer therapy and PDT are highlighted. Furthermore, recent improvements in curcumin's bioavailability in cancer therapy using nanoformulations and delivery systems are presented.
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Yu X, Zou Y, Zhang Z, Wei T, Ye Z, Yuk HG, Zheng Q. Recent advances in antimicrobial applications of curcumin-mediated photodynamic inactivation in foods. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Dias LD, Alves F, Buzza HH, Bagnato VS. Photodisinfection of material surfaces and bacterial skin infections by a detergent loaded with curcumin. Photodiagnosis Photodyn Ther 2022; 39:103021. [PMID: 35850462 DOI: 10.1016/j.pdpdt.2022.103021] [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: 03/31/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 11/15/2022]
Abstract
The development of technologies and therapeutic strategies is needed to combat skin infections and pathogenic microorganisms present on material surfaces that are still responsible for serious public health problems. In this study, detergents loaded with curcumin were prepared by a simple approach and characterized by UV-vis spectroscopy and fluorescence spectroscopy. Their antibacterial photodynamic effects were evaluated against Staphylococcus aureus in planktonic medium and in vivo (skin infection model), and showed a reduction up to 8 logs and 2 logs, respectively. Additionally, the curcumin-detergents were applied on photodisinfection of material surfaces such as wood, rubber, and stainless steel resulting in an efficient photoinactivation up to 3 logs. These developed detergents loaded with curcumin can improve the decontamination of material surfaces and skin infections (in vivo) when illuminated.
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Affiliation(s)
- Lucas D Dias
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil; Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, 75.132-903 Anápolis, GO, Brazil; Laboratório de Novos Materiais, Universidade Evangélica de Goiás, Anápolis, GO, Brazil.
| | - Fernanda Alves
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - Hilde H Buzza
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil; Institute of Physics, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Vanderlei S Bagnato
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil; Department of Biomedical Engineering, Texas A&M University - College Station Texas, 77843, USA.
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7
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Yamamoto LY, Loureiro C, Cintra LTA, Leonardo RDT, Banci HA, Ribeiro APF, Sivieri-Araujo G, Jacinto RDC. Antibiofilm activity of laser ablation with indocyanine green activated by different power laser parameters compared with photodynamic therapy on root canals infected with Enterococcus faecalis. Photodiagnosis Photodyn Ther 2021; 35:102377. [PMID: 34087469 DOI: 10.1016/j.pdpdt.2021.102377] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 05/02/2021] [Accepted: 05/28/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Antimicrobial photodynamic therapy (aPDT) is used as an adjunct to endodontic treatment to enhance microbial reduction in the root canal system. However, studies evaluating the impact of laser ablation with Indocyanine Green (ICG) are scarce. Thus, this in vitro study aimed to evaluate the efficiency of laser ablation with ICG using different laser parameters compared with aPDT using photosensitizer methylene blue (MB) and curcumin (CUR) on the reduction of E. faecalis biofilms on root canals. METHODS Forty-nine human premolars were used after biomechanical instrumentation for standardization. The root canals were contaminated with E. faecalis for 10 days to form biofilms, and divided into 7 groups (n = 7): 0.01% MB activated by red laser - MB+RL; 0.05% CUR activated by blue LED - CUR+BL; 0.05% ICG activated by infrared diode laser (2.5 W power, 30 ms interval, and 30 ms duration) - ICG+DL 2.5/30/30; 0.05% ICG activated by infrared diode laser (2.5 W power, 300 ms interval, and 100 ms duration) - ICG+DL 2.5/300/100; 0.05% ICG activated by infrared diode laser (3 W power, 300 ms interval, and 100 ms duration) - ICG+DL 3/300/100; sterile saline solution (negative control) - NC; and 2.5% NaOCl (positive control) - PC. Root canal sampling was performed prior to and immediately after the different treatment protocols. Data were submitted to One- and Two-Way ANOVA, followed by Student-Newman-Keuls test or Fisher LSD's test (α = 0.05). RESULTS All aPDT protocols promoted significant CFU reductions compared with the NC; the highest CFU reduction was observed for PC (p < 0.05). Among the protocols the highest CFU reduction was promoted by laser ablation with ICG+DL 3/300/100 (p < 0.05) except compared with aPDT using CUR+BL (p > 0.05). CONCLUSIONS Laser ablation protocol using ICG+DL proved to be efficient in reducing E. faecalis biofilms, especially when activated at 3/300/100 configuration.
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Affiliation(s)
- Larissa Yumi Yamamoto
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araçatuba, SP, Brazil.
| | - Caroline Loureiro
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araçatuba, SP, Brazil.
| | - Luciano Tavares Angelo Cintra
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araçatuba, SP, Brazil.
| | - Renato de Toledo Leonardo
- Department of Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araraquara, SP, Brazil.
| | - Henrique Augusto Banci
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araçatuba, SP, Brazil.
| | - Ana Paula Fernandes Ribeiro
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araçatuba, SP, Brazil.
| | - Gustavo Sivieri-Araujo
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araçatuba, SP, Brazil.
| | - Rogério de Castilho Jacinto
- Department of Preventive and Restorative Dentistry, São Paulo State University (UNESP) School of Dentistry, Araçatuba, SP, Brazil.
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Dias LD, Blanco KC, Mfouo-Tynga IS, Inada NM, Bagnato VS. Curcumin as a photosensitizer: From molecular structure to recent advances in antimicrobial photodynamic therapy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2020. [DOI: 10.1016/j.jphotochemrev.2020.100384] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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9
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Muniyandi K, George B, Parimelazhagan T, Abrahamse H. Role of Photoactive Phytocompounds in Photodynamic Therapy of Cancer. Molecules 2020; 25:E4102. [PMID: 32911753 PMCID: PMC7570746 DOI: 10.3390/molecules25184102] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/26/2020] [Accepted: 09/04/2020] [Indexed: 01/10/2023] Open
Abstract
Cancer is one of the greatest life-threatening diseases conventionally treated using chemo- and radio-therapy. Photodynamic therapy (PDT) is a promising approach to eradicate different types of cancers. PDT requires the administration of photosensitisers (PSs) and photoactivation using a specific wavelength of light in the presence of molecular oxygen. This photoactivation exerts an anticancer effect via apoptosis, necrosis, and autophagy of cancer cells. Recently, various natural compounds that exhibit photosensitising potentials have been identified. Photoactive substances derived from medicinal plants have been found to be safe in comparison with synthetic compounds. Many articles have focused on PDT mechanisms and types of PSs, but limited attention has been paid to the phototoxic activities of phytocompounds. The reduced toxicity and side effects of natural compounds inspire the researchers to identify and use plant extracts or phytocompounds as a potent natural PS candidate for PDT. This review focusses on the importance of common photoactive groups (furanocoumarins, polyacetylenes, thiophenes, curcumins, alkaloids, and anthraquinones), their phototoxic effects, anticancer activity and use as a potent PS for an effective PDT outcome in the treatment of various cancers.
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Affiliation(s)
- Kasipandi Muniyandi
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
- Bioprospecting Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India;
| | - Blassan George
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
| | - Thangaraj Parimelazhagan
- Bioprospecting Laboratory, Department of Botany, School of Life Sciences, Bharathiar University, Coimbatore, Tamil Nadu 641046, India;
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, 17011, Doornfontein 2028, South Africa; (K.M.); (B.G.)
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Strazzi-Sahyon HB, de Oliveira MS, da Silva PP, Banci HA, de Melo FS, Martinez CMT, Cintra LTA, Gomes-Filho JE, Dezan-Júnior E, dos Santos PH, Sivieri-Araujo G. Does photodynamic therapy with methylene blue affect the mechanical properties and bond strength of glass-fiber posts in different thirds of intraradicular dentin? Photodiagnosis Photodyn Ther 2020; 30:101673. [DOI: 10.1016/j.pdpdt.2020.101673] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/27/2019] [Accepted: 01/21/2020] [Indexed: 10/25/2022]
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11
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Kazantzis KT, Koutsonikoli K, Mavroidi B, Zachariadis M, Alexiou P, Pelecanou M, Politopoulos K, Alexandratou E, Sagnou M. Curcumin derivatives as photosensitizers in photodynamic therapy: photophysical properties and in vitro studies with prostate cancer cells. Photochem Photobiol Sci 2020; 19:193-206. [PMID: 31956888 DOI: 10.1039/c9pp00375d] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photodynamic therapy (PDT) is a minimally invasive approach to treat various forms of cancer, based on the ability of certain non-toxic molecules (photosensitizers) to generate reactive oxygen species (ROS) after excitation by light of a certain wavelength and eventually induce strong phototoxic reactions against malignant cells and other pathogens. Curcumin is one of the most extensively investigated phytochemicals with a wide range of therapeutic properties and has been shown to induce strong photocytotoxic effects in micromolar concentrations against a variety of cancer cell lines. Curcumin (1) is comparatively evaluated with the naturally occurring bisdemethoxy Curcumin (2), which lacks the two methoxy groups, as well as two newly synthesized curcuminoids, the cinnamaldehyde derivative (3) and the dimethylamino one (4), designed to increase the absorption maximum and hence the tissue penetration. The synthetic curcuminoids were successfully synthesized in sufficient amounts and their photophysical properties such as absorption, fluorescence, photobleaching and free radical generation were investigated. Compound 4 exhibited a significant increase in peak absorption (497 nm) and strong fluorescent emission signals were recorded for all curcuminoids. Photobleaching of 4 was comparable to 1 whereas 2 and 3 showed more extended photobleaching but much higher ROS production in very short irradiation times. Compounds 2 and 4 exhibited specific intracellular localization. After dark and light cytotoxicity experiments against LNCaP prostate cancer cell line for all curcuminoids, concentration of 3 μM and irradiance of 6 mW cm-2 were selected for the PDT application which resulted in remarkable results with very short LD50. Curcuminoids 2 and 4 exhibited a significant dose-dependent PDT effect. The biphasic dose-response photodynamic effect observed for 1 and 3 may provide a strategy against prolonged and sustained photosensitivity.
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Affiliation(s)
- K T Kazantzis
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - K Koutsonikoli
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - B Mavroidi
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
| | - M Zachariadis
- Bioimaging and Cell analysis, Material and Chemical Characterisation Facility, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - P Alexiou
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
| | - M Pelecanou
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
| | - K Politopoulos
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - E Alexandratou
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece.
| | - M Sagnou
- Laboratories of Structural Studies of Biomolecules and Pharmaceuticals with NMR, Institute of Biosciences and Applications, NCSR "Demokritos", Ag. Paraskevi, 153 10, Athens, Greece.
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The Anti-Inflammatory Role of Mannich Curcuminoids; Special Focus on Colitis. Molecules 2019; 24:molecules24081546. [PMID: 31010141 PMCID: PMC6515261 DOI: 10.3390/molecules24081546] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/12/2019] [Accepted: 04/17/2019] [Indexed: 01/18/2023] Open
Abstract
The incidence of inflammatory bowel disease (IBD) increases gradually in Western countries with high need for novel therapeutic interventions. Mannich curcuminoids, C142 or C150 synthetized in our laboratory, have been tested for anti-inflammatory activity in a rat model of TNBS (2,4,6-trinitrobenzenesulphonic acid) induced colitis. Treatment with C142 or C150 reduced leukocyte infiltration to the submucosa and muscular propria of the inflamed gut. C142 or C150 rescued the loss of body weight and C150 decreased the weight of standard colon preparations proportional with 20% less tissue oedema. Both C142 and C150 curcumin analogues caused 25% decrease in the severity of colonic inflammation and haemorrhagic lesion size. Colonic MPO (myeloperoxidase) enzyme activity as an indicator of intense neutrophil infiltration was 50% decreased either by C142 or C150 Mannich curcuminoids. Lipopolysaccharide (LPS) co-treatment with Mannich curcuminoids inhibited NF-κB (nuclear factor kappa B) activity on a concentration-dependent manner in an NF-κB-driven luciferase expressing reporter cell line. Co-treatment with LPS and curcuminoids, C142 or C150, resulted in NF-κB inhibition with 3.57 μM or 1.6 μM half maximal effective concentration (EC50) values, respectively. C150 exerted a profound inhibition of the expression of inflammatory cytokines, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and interleukin-4 (IL-4) in human PBMCs (peripheral blood mononuclear cells) upon LPS stimulus. Mannich curcuminoids reported herein possess a powerful anti-inflammatory activity.
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13
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Strazzi Sahyon HB, Silva PPD, Oliveira MSD, Cintra LTA, Dezan-Júnior E, Gomes-Filho JE, Jacinto RDC, dos Santos PH, Sivieri-Araujo G. Influence of curcumin photosensitizer in photodynamic therapy on the mechanical properties and push-out bond strength of glass-fiber posts to intraradicular dentin. Photodiagnosis Photodyn Ther 2019; 25:376-381. [DOI: 10.1016/j.pdpdt.2019.01.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/18/2018] [Accepted: 01/18/2019] [Indexed: 01/03/2023]
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14
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dos Santos RF, Campos BS, Rego Filho FDAMG, Moraes JDO, Albuquerque ALI, da Silva MCD, dos Santos PV, de Araujo MT. Photodynamic inactivation of S. aureus with a water-soluble curcumin salt and an application to cheese decontamination. Photochem Photobiol Sci 2019; 18:2707-2716. [DOI: 10.1039/c9pp00196d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this study, the optimal parameters for the photodynamic inactivation (PDI) of Staphylococcus aureus in bacterial suspensions and in cheese were assessed using a water-soluble curcumin salt as the photosensitizer (PS).
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15
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Strazzi Sahyon HB, Pereira da Silva P, Silva de Oliveira M, Angelo Cintra LT, Gomes-Filho JE, Henrique dos Santos P, Sivieri-Araujo G. Effect of photodynamic therapy on the mechanical properties and bond strength of glass-fiber posts to endodontically treated intraradicular dentin. J Prosthet Dent 2018; 120:317.e1-317.e7. [DOI: 10.1016/j.prosdent.2018.05.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 05/28/2018] [Accepted: 05/30/2018] [Indexed: 10/28/2022]
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16
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Curcumin-mediated Photodynamic Therapy for the treatment of oral infections-A review. Photodiagnosis Photodyn Ther 2018; 21:409-415. [PMID: 29378256 DOI: 10.1016/j.pdpdt.2018.01.016] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 01/05/2018] [Accepted: 01/23/2018] [Indexed: 12/18/2022]
Abstract
BACKGROUND Recent evidences show the promising applications of Curcumin (CUR) against different diseases, including some of the main oral pathologies. The objective of this review paper was to catalog articles that investigated the photodynamic effect of CUR for oral diseases in the last 15 years. METHODS The establishment of defined criteria for data collection was proposed and a total of 173 articles were identified, but only 26 were eligible for full text reading. Their main findings were critically reviewed to provide a state-of-the-art overview of the use of CUR in Dentistry. RESULTS Antimicrobial potential of CUR was the subject of the majority of the articles. CUR showed great potential for photodynamic action against oral bacteria, fungi, and strains resistant to conventional drugs. Some authors indicated the efficacy of CUR-mediated Photodynamic Therapy to reduce tumor cells while others observed low cytotoxicity in mammalian cells and healthy oral mucosa. However, CUR solubility and stability is still a problem for the photodynamic technique, and to overcome these drawbacks, biocompatible vehicles need to be better explored. CONCLUSIONS Investigations have used different CUR concentrations and formulations, as well as different light parameters. This fact, together with the lack of in vivo studies, clearly shows that clinical protocols have not been established yet. Investigations are necessary in order to establish the best concentrations and safe vehicles to be used for this technique.
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Santezi C, Tanomaru JM, Bagnato VS, Júnior OBO, Dovigo LN. Potential of curcumin-mediated photodynamic inactivation to reduce oral colonization. Photodiagnosis Photodyn Ther 2016; 15:46-52. [DOI: 10.1016/j.pdpdt.2016.04.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 03/31/2016] [Accepted: 04/12/2016] [Indexed: 10/21/2022]
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Fornaini C, Lagori G, Merigo E, Rocca JP, Chiusano M, Cucinotta A. 405 nm diode laser, halogen lamp and LED device comparison in dental composites cure: an "in vitro" experimental trial. Laser Ther 2015; 24:265-74. [PMID: 26877591 PMCID: PMC4751091 DOI: 10.5978/islsm.15-or-16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 10/21/2015] [Indexed: 12/24/2022]
Abstract
BACKGROUND AND AIMS A 405 nm diode laser is indicated for composite materials polymerizing, thanks to the recent evolution in their compositions, absorbing in blue part of the spectrum. The purpose of this research was to evaluate its performance on two different kinds of composite resins. MATERIALS AND METHODS Two different composites were polymerized with a traditional halogen lamp, a LED device and a 405 nm diode laser. The depth of the cure, the volumetric shrinkage, and the degree of the conversion (DC%) of the double bond during the curing process were measured. One-way ANOVA test, Kruskal-Wallis tests, and Dunn comparison tests were used for statistic analysis. RESULTS Regarding the depth of polymerization, the laser had the worst performance on one composite while on the other, no significant difference with the other devices was observed. The volumetric shrinkage showed that laser produced the lowest change in both of the composites. The DC% measure confirmed these findings. CONCLUSIONS Based on the results of this preliminary study, it is not possible to recommend the 405 nm diode laser for the polymerization of dental composites.
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Affiliation(s)
- C. Fornaini
- Group of Applied ElectroMagnetic, Information Engineering Department, University of Parma, Parma, Italy
- Micoralis Laboratory, Faculty of Dentistry, University of Nice, Nice, France
| | - G. Lagori
- Micoralis Laboratory, Faculty of Dentistry, University of Nice, Nice, France
| | - E. Merigo
- Micoralis Laboratory, Faculty of Dentistry, University of Nice, Nice, France
| | - J-P. Rocca
- Micoralis Laboratory, Faculty of Dentistry, University of Nice, Nice, France
| | - M. Chiusano
- Micoralis Laboratory, Faculty of Dentistry, University of Nice, Nice, France
| | - A. Cucinotta
- Group of Applied ElectroMagnetic, Information Engineering Department, University of Parma, Parma, Italy
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