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Meng X, Ma F, Yu D. The diverse effects of cisplatin on tumor microenvironment: Insights and challenges for the delivery of cisplatin by nanoparticles. ENVIRONMENTAL RESEARCH 2024; 240:117362. [PMID: 37827371 DOI: 10.1016/j.envres.2023.117362] [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: 07/16/2023] [Revised: 09/11/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
Cisplatin is a well-known platinum-based chemotherapy medication that is widely utilized for some malignancies. Despite the direct cytotoxic consequences of cisplatin on tumor cells, studies in the recent decade have revealed that cisplatin can also affect different cells and their secretions in the tumor microenvironment (TME). Cisplatin has complex impacts on the TME, which may contribute to its anti-tumor activity or drug resistance mechanisms. These regulatory effects of cisplatin play a paramount function in tumor growth, invasion, and metastasis. This paper aims to review the diverse impacts of cisplatin and nanoparticles loaded with cisplatin on cancer cells and also non-cancerous cells in TME. The impacts of cisplatin on immune cells, tumor stroma, cancer cells, and also hypoxia will be discussed in the current review. Furthermore, we emphasize the challenges and prospects of using cisplatin in combination with other adjuvants and therapeutic modalities that target TME. We also discuss the potential synergistic effects of cisplatin with immune checkpoint inhibitors (ICIs) and other agents with anticancer potentials such as polyphenols and photosensitizers. Furthermore, the potential of nanoparticles for targeting TME and better delivery of cisplatin into tumors will be discussed.
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Affiliation(s)
- Xinxin Meng
- Zhuji Sixth People's Hospital of Zhejiang Province, Zhuji, Zhejiang, 311801, China
| | - Fengyun Ma
- Zhuji People's Hospital of Zhejiang Province, Zhuji Affiliated Hospital of Shaoxing University, Zhuji, Zhejiang, 311800, China.
| | - Dingli Yu
- Zhuji People's Hospital of Zhejiang Province, Zhuji Affiliated Hospital of Shaoxing University, Zhuji, Zhejiang, 311800, China
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Dias LD, Aguiar ASN, de Melo NJ, Inada NM, Borges LL, de Aquino GLB, Camargo AJ, Bagnato VS, Napolitano HB. Structural basis of antibacterial photodynamic action of curcumin against S. aureus. Photodiagnosis Photodyn Ther 2023; 43:103654. [PMID: 37308043 DOI: 10.1016/j.pdpdt.2023.103654] [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: 03/26/2023] [Revised: 05/07/2023] [Accepted: 06/09/2023] [Indexed: 06/14/2023]
Abstract
Antimicrobial photodynamic therapy (aPDT) is an alternative tool to commercial antibiotics for the inactivation of pathogenic bacteria (e.g., S. aureus). However, there is still a lack of understanding of the molecular modeling of the photosensitizers and their mechanism of action through oxidative pathways. Herein, a combined experimental and computational evaluation of curcumin as a photosensitizer against S. aureus was performed. The radical forms of keto-enol tautomers and the energies of curcumin's frontier molecular orbitals were evaluated by density functional theory (DFT) to point out the photodynamic action as well as the photobleaching process. Furthermore, the electronic transitions of curcumin keto-enol tautomers were undertaken to predict the transitions as a photosensitizer during the antibacterial photodynamic process. Moreover, molecular docking was used to evaluate the binding affinity with the S. aureus tyrosyl-tRNA synthetase as the proposed a target for curcumin. In this regard, the molecular orbital energies show that the curcumin enol form has a character of 4.5% more basic than the keto form - the enol form is a more promising electron donor than its tautomer. Curcumin is a strong electrophile, with the enol form being 4.6% more electrophilic than its keto form. In addition, the regions susceptible to nucleophilic attack and photobleaching were evaluated by the Fukui function. Regarding the docking analysis, the model suggested that four hydrogen bonds contribute to the binding energy of curcumin's interaction with the ligand binding site of S. aureus tyrosyl-tRNA synthetase. Finally, residues Tyr36, Asp40, and Asp177 contact curcumin and may contribute to orienting the curcumin in the active area. Moreover, curcumin presented a photoinactivation of 4.5 log unit corroborating the necessity of the combined action of curcumin, light, and O2 to promote the photooxidation damage of S. aureus. These computational and experimental data suggest insights regarding the mechanism of action of curcumin as a photosensitizer to inactivate S. aureus bacteria.
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Affiliation(s)
- Lucas D Dias
- Laboratório de Novos Materiais, Universidade Evangélica de Goiás, Anápolis GO, Brazil; Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil.
| | - Antônio S N Aguiar
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil
| | - Nícolas J de Melo
- São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil
| | - Natalia M Inada
- São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil
| | - Leonardo L Borges
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil; Escola de Ciências Médicas e da Vida, Pontifícia Universidade Católica de Goiás, Goiânia, GO, Brazil
| | - Gilberto L B de Aquino
- Laboratório de Pesquisa em Bioprodutos e Síntese, Universidade Estadual de Goiás, Anápolis, GO, Brazil
| | - Ademir J Camargo
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil
| | - Vanderlei S Bagnato
- São Carlos Institute of Physics, University of São Paulo, São Carlos, SP, Brazil; Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
| | - Hamilton B Napolitano
- Laboratório de Novos Materiais, Universidade Evangélica de Goiás, Anápolis GO, Brazil; Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis, GO, Brazil.
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Wu JJ, Zhang J, Xia CY, Ding K, Li XX, Pan XG, Xu JK, He J, Zhang WK. Hypericin: A natural anthraquinone as promising therapeutic agent. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 111:154654. [PMID: 36689857 DOI: 10.1016/j.phymed.2023.154654] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 12/31/2022] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND Hypericin is a prominent secondary metabolite mainly existing in genus Hypericum. It has become a research focus for a quiet long time owing to its extensively pharmacological activities especially the anti-cancer, anti-bacterial, anti-viral and neuroprotective effects. This review concentrated on summarizing and analyzing the existing studies of hypericin in a comprehensive perspective. METHODS The literature with desired information about hypericin published after 2010 was gained from electronic databases including PubMed, SciFinder, Science Direct, Web of Science, China National Knowledge Infrastructure databases and Wan Fang DATA. RESULTS According to extensive preclinical and clinical studies conducted on the hypericin, an organized and comprehensive summary of the natural and artificial sources, strategies for improving the bioactivities, pharmacological activities, drug combination of hypericin was presented to explore the future therapeutic potential of this active compound. CONCLUSIONS Overall, this review offered a theoretical guidance for the follow-up research of hypericin. However, the pharmacological mechanisms, pharmacokinetics and structure activity relationship of hypericin should be further studied in future research.
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Affiliation(s)
- Jing-Jing Wu
- China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100029, China; Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Jia Zhang
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Cong-Yuan Xia
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Kang Ding
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Xin-Xin Li
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Xue-Ge Pan
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Jie-Kun Xu
- School of Life Sciences & School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Jun He
- Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China.
| | - Wei-Ku Zhang
- China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100029, China; Institute of Clinical Medical Sciences & Department of Pharmacy, China-Japan Friendship Hospital, Beijing, 100029, China.
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4
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Maciver SK, Abdelnasir S, Anwar A, Siddiqui R, Khan NA. Modular nanotheranostic agents for protistan parasitic diseases: Magic bullets with tracers. Mol Biochem Parasitol 2023; 253:111541. [PMID: 36603708 DOI: 10.1016/j.molbiopara.2022.111541] [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: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 01/04/2023]
Abstract
Protistan parasitic infections contribute significantly to morbidity and mortality, causing more than 2 billion human infections annually. However, current treatments are often limited; due to ineffective drugs and drug resistance, thus better options are urgently required. In the present context, theranostics agents are those that offer simultaneous detection, diagnosis and even treatment of protistan parasitic diseases. "Nanotheranostics" is the term used to describe such agents, that are around 100 nm or less in size. Anti-parasitic activity of nanoparticles (NPs) has been reported, and many have useful intrinsic imaging properties, but it is perhaps their multifunctional nature that offers the greatest potential. NPs may be used as adapters onto which various subunits with different functions may be attached. These subunits may facilitate targeting parasites, coupled with toxins to eradicate parasites, and probe subunits for detection of particles and/or parasites. The modular nature of nano-platforms promises a "mix and match" approach for the construction of tailored agents by using combinations of these subunits against different protistan parasites. Even though many of the subunits have shown promise alone, these have not yet been put together convincingly enough to form working theranostics against protistan parasites. Although the clinical application of nanotheranostics to protistan parasitic infections in humans requires more research, we conclude that they offer not just a realisation of Paul Ehrlich's long imagined "magic bullet" concept, but potentially are magic bullets combined with tracer bullets.
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Affiliation(s)
- Sutherland Kester Maciver
- Centre for Discovery Brain Science, Edinburgh Medical School, Biomedical Sciences, University of Edinburgh, Scotland, UK
| | - Sumayah Abdelnasir
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Selangor, Malaysia
| | - Ayaz Anwar
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Selangor, Malaysia.
| | - Ruqaiyyah Siddiqui
- College of Arts and Sciences, American University of Sharjah, Sharjah, United Arab Emirates; Department of Medical Biology, Faculty of Medicine, Istinye University, Istanbul 34010, Turkey
| | - Naveed Ahmed Khan
- Department of Medical Biology, Faculty of Medicine, Istinye University, Istanbul 34010, Turkey; Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates.
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Parodi F, Cacciari RD, Mazalu JN, Montejano HA, Reynoso E, Biasutti MA. UVB light influence on the laccase enzyme catalytic activity in reverse micelles and in homogeneous aqueous medium. Amino Acids 2023; 55:469-479. [PMID: 36695918 DOI: 10.1007/s00726-023-03237-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023]
Abstract
Laccase is a versatile enzyme widely used for the oxidation of environmental contaminants and exhibits great potential in many others applications; however, it undergoes photo-degradation when irradiated with UVB light. The photo-stability of this biomolecule can be improved by immobilization in different encapsulation media and reverse micelles have been employed with this purpose. The laccase activity using syringaldazine as substrate has been studied in the absence and in the presence of reverse micelles of 0.15 M of sodium 1,4-bis (2-ethylhexyl) sulfosuccinate (AOT) in isooctane at W0 ([H2O]/[AOT]) = 30, before and after irradiation of the enzyme with UVB light. The kinetic parameters, i.e., Michaelis-Menten constant (KM), catalytic constant (kCAT), and catalytic efficiency (kCAT/KM), were determined by spectroscopic measurements in the micellar system and in homogeneous aqueous medium. The distribution of the substrate in two pseudo-phases (micelle and organic solvent) was taking into account in the kinetic parameters' determinations. The results obtained indicate that the nano-aggregate system confers a solubilization media in the water core of the micelle, both for the enzyme and the substrate, in which the catalytic function of the enzyme is preserved. On the other hand, in homogeneous aqueous medium kCAT/KM value, it is reduced by ~50% after UVB irradiation of the enzyme, while in micellar medium, less than 10% of the activity was affected. This mean that the enzyme achieves a considerably photo-protection when it is irradiated with UVB light in reverse micelles as compared with the homogeneous aqueous medium. This phenomenon can be mainly due to the confinement of the biomolecule inside the micelle. Physical properties of the nano-environment could affect photochemical reactions.
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Affiliation(s)
- Facundo Parodi
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
- Instituto Para El Desarrollo Agroindustrial y de la Salud (IDAS), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - R Daniel Cacciari
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), CONICET-UNLP, Diagonal 113 y 64, Casco Urbano, B1900, La Plata, Buenos Aires, Argentina
| | - Jeremías N Mazalu
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Hernán A Montejano
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
- Instituto de Investigaciones en Tecnologías Energéticas y Materiales Avanzados (IITEMA), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Eugenia Reynoso
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
- Instituto Para El Desarrollo Agroindustrial y de la Salud (IDAS), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
| | - M Alicia Biasutti
- Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto (UNRC), Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
- Instituto Para El Desarrollo Agroindustrial y de la Salud (IDAS), CONICET-UNRC, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
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Zhang Z, Chow SY, De Guzman R, Joh NH, Joubert MK, Richardson J, Shah B, Wikström M, Zhou ZS, Wypych J. A Mass Spectrometric Characterization of Light-Induced Modifications in Therapeutic Proteins. J Pharm Sci 2022; 111:1556-1564. [DOI: 10.1016/j.xphs.2022.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/04/2022] [Accepted: 02/04/2022] [Indexed: 12/15/2022]
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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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Amanda Pedroso de Morais F, Sonchini Gonçalves R, Souza Campanholi K, Martins de França B, Augusto Capeloto O, Lazarin-Bidoia D, Bento Balbinot R, Vataru Nakamura C, Carlos Malacarne L, Caetano W, Hioka N. Photophysical characterization of Hypericin-loaded in micellar, liposomal and copolymer-lipid nanostructures based F127 and DPPC liposomes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119173. [PMID: 33316657 DOI: 10.1016/j.saa.2020.119173] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/25/2020] [Accepted: 10/31/2020] [Indexed: 05/22/2023]
Abstract
Hypericin (Hy) compound presents a high photoactivity in photodynamic therapy (PDT), photodiagnosis and theranostics applications. The maintenance of this compound in monomeric form could undermine the potential benefits of its photophysical and photodynamic activity. In this study, we demonstrated that the Hy formulated in a system based on the use of the F127 copolymer and the 1,2-dipalmitoyl-sn-3-glycerol-phosphatidylcholine (DPPC) as micelles, liposomal vesicles and Copolymer-Lipid coated systems, have improved its photophysical properties for many clinical modalities. Based on the results of the triplet state lifetime values (τt), the singlet oxygen quantum yield (ΦΔ1O2), the fluorescence lifetime (τF) and the fluorescence quantum yield (ΦF), all Hy formulations had its photophysical properties described in different models of drug delivery systems (DDS). In addition, the transient spectra profile of those formulations was unaffected by the Hy incorporation process, except for the liposomal system, which demonstrated to be the less stable one by flash photolysis technique. The cytotoxic effects of those formulations were also investigated for CaCo-2 and HaCat cells line. The cytotoxic concentrations for 50% (CC50) were 0.56, 1.05, 1.33 and 4.80 µmol L-1 for Copolymer-Lipid/Hy, DPPC/Hy, F127/Hy and ethanol/Hy for CaCo-2 cells, respectively, and 0.69, 2.02, 1.45 and 1.16 µmol L-1 for Copolymer-Lipid/Hy, DPPC/Hy, F127/Hy and ethanol/Hy for HaCat cells, respectively. The F127 copolymer had a significant role in many photophysical parameters determined for Copolymer-Lipid/Hy coated system. Although all those formulations had shown satisfactory results, Copolymer-Lipid/Hy proved to be superior in many aspects, being the most promising formulation for PDT, photodiagnosis and theranostics applications.
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Affiliation(s)
| | - Renato Sonchini Gonçalves
- Department of Chemistry, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Katieli Souza Campanholi
- Department of Chemistry, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Bruna Martins de França
- Department of Chemistry, Federal University of Rio de Janeiro, 149 Athos da Silveira Ramos Ave., 21941-909 Rio de Janeiro, RJ, Brazil
| | - Otávio Augusto Capeloto
- Department of Physics, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Danielle Lazarin-Bidoia
- Technological Innovation Laboratory in the Pharmaceuticals and Cosmetics Development, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Rodolfo Bento Balbinot
- Technological Innovation Laboratory in the Pharmaceuticals and Cosmetics Development, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Celso Vataru Nakamura
- Technological Innovation Laboratory in the Pharmaceuticals and Cosmetics Development, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Luis Carlos Malacarne
- Department of Physics, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Wilker Caetano
- Department of Chemistry, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
| | - Noboru Hioka
- Department of Chemistry, State University of Maringá, 5790 Colombo Ave., 87020-900 Maringá, PR, Brazil
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9
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Álvarez-Barrios A, Álvarez L, García M, Artime E, Pereiro R, González-Iglesias H. Antioxidant Defenses in the Human Eye: A Focus on Metallothioneins. Antioxidants (Basel) 2021; 10:89. [PMID: 33440661 PMCID: PMC7826537 DOI: 10.3390/antiox10010089] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 12/12/2022] Open
Abstract
The human eye, the highly specialized organ of vision, is greatly influenced by oxidants of endogenous and exogenous origin. Oxidative stress affects all structures of the human eye with special emphasis on the ocular surface, the lens, the retina and its retinal pigment epithelium, which are considered natural barriers of antioxidant protection, contributing to the onset and/or progression of eye diseases. These ocular structures contain a complex antioxidant defense system slightly different along the eye depending on cell tissue. In addition to widely studied enzymatic antioxidants, including superoxide dismutase, glutathione peroxidase, catalase, peroxiredoxins and selenoproteins, inter alia, metallothioneins (MTs) are considered antioxidant proteins of growing interest with further cell-mediated functions. This family of cysteine rich and low molecular mass proteins captures and neutralizes free radicals in a redox-dependent mechanism involving zinc binding and release. The state of the art of MTs, including the isoforms classification, the main functions described to date, the Zn-MT redox cycle as antioxidant defense system, and the antioxidant activity of Zn-MTs in the ocular surface, lens, retina and its retinal pigment epithelium, dependent on the number of occupied zinc-binding sites, will be comprehensively reviewed.
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Affiliation(s)
- Ana Álvarez-Barrios
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), 33012 Oviedo, Spain; (A.Á.-B.); (L.Á.); (M.G.); (E.A.); (R.P.)
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain
| | - Lydia Álvarez
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), 33012 Oviedo, Spain; (A.Á.-B.); (L.Á.); (M.G.); (E.A.); (R.P.)
| | - Montserrat García
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), 33012 Oviedo, Spain; (A.Á.-B.); (L.Á.); (M.G.); (E.A.); (R.P.)
- Instituto Oftalmológico Fernández-Vega, Avda. Dres. Fernández-Vega, 34, 33012 Oviedo, Spain
| | - Enol Artime
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), 33012 Oviedo, Spain; (A.Á.-B.); (L.Á.); (M.G.); (E.A.); (R.P.)
| | - Rosario Pereiro
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), 33012 Oviedo, Spain; (A.Á.-B.); (L.Á.); (M.G.); (E.A.); (R.P.)
- Department of Physical and Analytical Chemistry, Faculty of Chemistry, University of Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain
| | - Héctor González-Iglesias
- Instituto Universitario Fernández-Vega (Fundación de Investigación Oftalmológica, Universidad de Oviedo), 33012 Oviedo, Spain; (A.Á.-B.); (L.Á.); (M.G.); (E.A.); (R.P.)
- Instituto Oftalmológico Fernández-Vega, Avda. Dres. Fernández-Vega, 34, 33012 Oviedo, Spain
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Furso J, Zadlo A, Szewczyk G, Sarna TJ. Photoreactivity of Bis-retinoid A2E Complexed with a Model Protein in Selected Model Systems. Cell Biochem Biophys 2020; 78:415-427. [PMID: 32920760 PMCID: PMC7567710 DOI: 10.1007/s12013-020-00942-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The bis-retinoid N-retinyl-N-retinylidene ethanolamine (A2E) is formed as a byproduct of visual cycle in retinal pigment epithelium (RPE). It contributes to golden-yellow fluorescence of the age pigment lipofuscin, which accumulates in RPE. Lipofuscin can generate a variety of reactive oxygen species (ROS) upon blue-light excitation. Although in model systems photoreactivity of A2E has been determined to be low, this bis-retinoid exhibited significant phototoxicity in RPE cells in vitro. Although the mechanism of A2E-mediated phototoxicity remains mostly unknown, we hypothesize that formation of A2E-adducts with different biomolecules may play an important role. In this study, we investigated the photochemical reactivity of A2E and its complex with bovine serum albumin (BSA) using UV-Vis absorption and emission spectroscopy, EPR-spin trapping, EPR-oximetry, time-resolved singlet oxygen phosphorescence, and the fluorogenic CBA probe. Our data show that A2E after complexation with this model protein photogenerated an increased level of ROS, particularly singlet oxygen. We also demonstrated the ability of A2E to oxidize BSA upon excitation with blue light in aqueous model systems. The data suggest that pyridinium bis-retinoid could oxidatively modify cellular proteins under physiological conditions.
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Affiliation(s)
- Justyna Furso
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Andrzej Zadlo
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Grzegorz Szewczyk
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland
| | - Tadeusz J Sarna
- Department of Biophysics, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, 30-387, Krakow, Poland.
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11
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Banci HA, Strazzi-Sahyon HB, Duarte MAH, Cintra LTA, Gomes-Filho JE, Chalub LO, Berton SA, de Oliveira VHD, dos Santos PH, Sivieri-Araujo G. Influence of photodynamic therapy on bond strength and adhesive interface morphology of MTA based root canal sealer to different thirds of intraradicular dentin. Photodiagnosis Photodyn Ther 2020; 32:102031. [DOI: 10.1016/j.pdpdt.2020.102031] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/20/2020] [Accepted: 09/28/2020] [Indexed: 11/16/2022]
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12
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Lebedeva NS, Gubarev YA, Koifman MO, Koifman OI. The Application of Porphyrins and Their Analogues for Inactivation of Viruses. Molecules 2020; 25:molecules25194368. [PMID: 32977525 PMCID: PMC7583985 DOI: 10.3390/molecules25194368] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/18/2020] [Accepted: 09/20/2020] [Indexed: 02/06/2023] Open
Abstract
The problem of treating viral infections is extremely relevant due to both the emergence of new viral diseases and to the low effectiveness of existing approaches to the treatment of known viral infections. This review focuses on the application of porphyrin, chlorin, and phthalocyanine series for combating viral infections by chemical and photochemical inactivation methods. The purpose of this review paper is to summarize the main approaches developed to date in the chemical and photodynamic inactivation of human and animal viruses using porphyrins and their analogues and to analyze and discuss the information on viral targets and antiviral activity of porphyrins, chlorins, of their conjugates with organic/inorganic compounds obtained in the last 10–15 years in order to identify the most promising areas.
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Affiliation(s)
- Natalya Sh. Lebedeva
- Laboratory 1-7. Physical Chemistry of Solutions of Macrocyclic Compounds, G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 153045 Ivanovo, Russia;
- Correspondence: ; Tel.: +7-4932-33-62-72
| | - Yury A. Gubarev
- Laboratory 1-7. Physical Chemistry of Solutions of Macrocyclic Compounds, G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 153045 Ivanovo, Russia;
| | - Mikhail O. Koifman
- Department of Chemistry and Technology of Macromolecular Compounds, Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia; (M.O.K.); (O.I.K.)
| | - Oskar I. Koifman
- Department of Chemistry and Technology of Macromolecular Compounds, Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia; (M.O.K.); (O.I.K.)
- Laboratory 2-2. New Materials on the Basis of Macrocyclic Compounds, G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 153045 Ivanovo, Russia
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13
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Effect of UVB solar irradiation on Laccase enzyme: evaluation of the photooxidation process and its impact over the enzymatic activity for pollutants bioremediation. Amino Acids 2020; 52:925-939. [PMID: 32556742 DOI: 10.1007/s00726-020-02861-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 06/13/2020] [Indexed: 12/29/2022]
Abstract
The multi-copper Laccase enzyme corresponds to one of the most investigated oxidoreductases for potential uses in xenobiotic bioremediation. In this work, we have investigated the photo-degradation process of Laccase from Trametesversicolor induced by UVB light and the influence on its activity over selected substrates. Laccase undergoes photo-degradation when irradiated with UVB light, and the process depends on the presence of oxygen in the medium. With the kinetic data obtained from stationary and time resolved measurements, a photo-degradation mechanism of auto-sensitization was proposed for the enzyme. Laccase generates singlet oxygen, by UVB light absorption, and this reactive oxygen species can trigger the photo-oxidation of susceptible amino acids residues present in the protein structure. The catalytic activity of Laccase was evaluated before and after UVB photolysis over hydroxy-aromatic compounds and substituted phenols which represent potential pollutants. The dye bromothymol blue, the antibiotic rifampicin and the model compound syringaldazine, were selected as substrates. The values of the kinetic parameters determined in our experiments indicate that the photo-oxidative process of Laccase has a very negative impact on its overall catalytic function. Despite this, we have not found evidence of structural damage by SDS-PAGE and circular dichroism experiments, which indicate that the enzyme retained its secondary structure. We believe that, given the importance of Laccase in environmental bioremediation, the information found about the stability of this kind of biomolecule exposed to UV solar irradiation may be relevant in the technological design and/or optimization of decontamination strategies.
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Korkina LG. Current Trends in Medicinal Chemistry of Photoprotection and Phototherapy. Curr Med Chem 2019; 25:5466-5468. [PMID: 30704377 DOI: 10.2174/092986732540181120104620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Liudmila G Korkina
- Centre for Innovative Biotechnological Investigations NANOLAB (CIBI-NANOLAB) Moscow, Russian Federation
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15
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Secondary Plant Metabolites for Sun Protective Cosmetics: From Pre-Selection to Product Formulation. COSMETICS 2018. [DOI: 10.3390/cosmetics5020032] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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