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Tisoco I, Donatoni MC, Victória HFV, de Toledo JR, Krambrock K, Chaves OA, de Oliveira KT, Iglesias BA. Photophysical, photooxidation, and biomolecule-interaction of meso-tetra(thienyl)porphyrins containing peripheral Pt(II) and Pd(II) complexes. Insights for photodynamic therapy applications. Dalton Trans 2022; 51:1646-1657. [PMID: 35015799 DOI: 10.1039/d1dt03565g] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We report the synthesis and characterization of two novel tetra-cationic porphyrins, containing Pt(II) or Pd(II) polypyridyl complexes attached at the peripheral position of N4-macrocycle. Compounds were characterized through elemental analysis, molar conductivity, cyclic voltammetry, and spectroscopy analysis. Photophysical and photobiological parameters were also evaluated. Also, the binding capacity of each porphyrin with human serum albumin (HSA) was determined by UV-Vis, steady-state, and time-resolved fluorescence spectroscopy, combined with molecular docking calculations. The results suggest that the interaction of these compounds is spontaneous, weak to moderate, and probably occurs at site III (subdomain IB) by non-covalent forces, including van der Waals and H-bonding. Moreover, porphyrins containing peripheral complexes improve their interactions with biomolecules, show good photostability, generate reactive oxygen species under white light studied by electron paramagnetic resonance (EPR) analysis, and promote photo-damage of HSA.
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Affiliation(s)
- Isadora Tisoco
- Department of Chemistry, Federal University of Santa Maria, Av. Roraima, Santa Maria-RS, Brazil.
| | - Maria Carolina Donatoni
- Department of Chemistry, Federal University of São Carlos, Rod. Washington Luiz, São Carlos-SP, Brazil
| | | | - José Roberto de Toledo
- Department of Physics, Federal University of Minas Gerais, Av. Antônio Carlos, Belo Horizonte-MG, Brazil
| | - Klaus Krambrock
- Department of Physics, Federal University of Minas Gerais, Av. Antônio Carlos, Belo Horizonte-MG, Brazil
| | | | - Kleber Thiago de Oliveira
- Department of Chemistry, Federal University of São Carlos, Rod. Washington Luiz, São Carlos-SP, Brazil
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Pratavieira S, Uliana MP, Dos Santos Lopes NS, Donatoni MC, Linares DR, de Freitas Anibal F, de Oliveira KT, Kurachi C, de Souza CWO. Photodynamic therapy with a new bacteriochlorin derivative: Characterization and in vitro studies. Photodiagnosis Photodyn Ther 2021; 34:102251. [PMID: 33705980 DOI: 10.1016/j.pdpdt.2021.102251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/12/2021] [Accepted: 03/05/2021] [Indexed: 10/22/2022]
Abstract
Photodynamic therapy presents a therapeutic choice that can be utilized to treat diverse neoplasms. In this technique, the critical element is a photosensitive molecule that absorbs light energy and transfers it to molecular oxygen or biological molecules to form reactive oxygen species, thus inducing irreversible damage to target cells and ultimately leading to cell death. Bacteriochlorin derivatives are employed as photosensitizers (PSs), possessing light-absorbing capacity in the near-infrared region. The objective of this study was to prepare a semi-synthetic bacteriochlorin from Rhodopseudomonas faecalis and adding Trizma® to improve solubility. Cell viability tests, flow cytometry (apoptotic and necrotic cells were identified by Annexin V and propidium iodide), and confocal microscopy were used to evaluate the photoactivity of bacteriochlorin-Trizma (Bchl-T) in fibroblast (HFF-1-control cells) and breast cancer (MCF-7 cells-target cells) cells. At concentrations above 0.5 μM, Bchl-T demonstrated 80 % cell death, presenting the highest PS interaction (via fluorescence microscopy) with lysosomes, mitochondria, and the endoplasmic reticulum; the cell death type was revealed as apoptosis (via cytometry). Our findings indicated the suitability of Bchl-T for future application in photodynamic therapy against cancer cells by inducing apoptosis.
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Affiliation(s)
- Sebastião Pratavieira
- São Carlos Institute of Physics, University of São Paulo, PO Box 369, 13560-970, São Carlos, SP, Brazil.
| | - Marciana Pierina Uliana
- Universidade Federal da Integração Latino-Americana, CEP 85866-000, Caixa Postal 2044, Foz do Iguaçu, PR, Brazil; Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil
| | - Nahryda Samara Dos Santos Lopes
- Pós Graduação em Biotecnologia, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil; Departamento de Morfologia e Patologia, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil
| | - Maria Carolina Donatoni
- Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil
| | - Diana Rodriguez Linares
- Universidade Federal da Integração Latino-Americana, CEP 85866-000, Caixa Postal 2044, Foz do Iguaçu, PR, Brazil
| | - Fernanda de Freitas Anibal
- Pós Graduação em Biotecnologia, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil; Departamento de Morfologia e Patologia, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil
| | - Kleber Thiago de Oliveira
- Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil
| | - Cristina Kurachi
- São Carlos Institute of Physics, University of São Paulo, PO Box 369, 13560-970, São Carlos, SP, Brazil
| | - Clovis Wesley Oliveira de Souza
- Pós Graduação em Biotecnologia, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil; Departamento de Morfologia e Patologia, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235 - SP-310, 13565-905, São Carlos, SP, Brazil
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Sampaio LS, de Annunzio SR, de Freitas LM, Dantas LO, de Boni L, Donatoni MC, de Oliveira KT, Fontana CR. Influence of light intensity and irradiation mode on methylene blue, chlorin-e6 and curcumin-mediated photodynamic therapy against Enterococcus faecalis. Photodiagnosis Photodyn Ther 2020; 31:101925. [DOI: 10.1016/j.pdpdt.2020.101925] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 12/11/2022]
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Garcia de Carvalho G, Sanchez-Puetate JC, Donatoni MC, Maquera Huacho PM, de Souza Rastelli AN, de Oliveira KT, Palomari Spolidorio DM, Leal Zandim-Barcelos D. Photodynamic inactivation using a chlorin-based photosensitizer with blue or red-light irradiation against single-species biofilms related to periodontitis. Photodiagnosis Photodyn Ther 2020; 31:101916. [PMID: 32645434 DOI: 10.1016/j.pdpdt.2020.101916] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/13/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022]
Abstract
Chlorin-e6 (Ce6), as a photosensitizer (PS), has demonstrated significant reduction of microorganisms' viability when irradiated by red light. However, the main absorption peak of this PS is located at blue light spectrum, which is less investigated. This study aimed to evaluate the effect of pure-chlorin-e6-mediated photodynamic inactivation (PDI) using different light sources (450 or 660 nm) against biofilms related to periodontitis. Streptococcus oralis, Fusobacterium nucleatum, Porphyromonas gingivalis, and Aggregatibacter actinomycetemcomitans single-species biofilms were developed under proper conditions for five days. PDI was performed using different concentrations of Ce6 (100 and 200 mM), wavelengths (450 and 660 nm) and comparisons were made after colony forming unit and confocal laser scanning microscopy (CLSM) analysis. The use of light and PS were also individually tested. The greatest bacterial elimination was observed in the group where PDI was employed with blue light and concentration of 200 mM for all bacterial strains tested (4.01 log10 for A. actinomycetemcomitans, and total elimination for P. gingivalis and S. oralis), except for F. nucleatum, where 3.46 log10 reduction was observed when red light and 200 mM Ce6 were applied (p < 0.05). The antimicrobial effects of PDI mediated by Ce6 for all single pathogenic biofilms were confirmed by live/dead staining under CLSM analysis. For all single-species biofilms, the use of PDI mediated by chlorin-e6 photosensitizer under blue or red-light irradiation (450 and 660 nm) demonstrated a significant reduction in bacterial viability, but blue light showed a promising higher photobiological effect, encouraging its adjuvant use to basic periodontitis treatment.
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Affiliation(s)
- Gabriel Garcia de Carvalho
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Rua Humaitá, 1680, 14801-903, Araraquara, SP, Brazil.
| | - Julio Cesar Sanchez-Puetate
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Rua Humaitá, 1680, 14801-903, Araraquara, SP, Brazil.
| | - Maria Carolina Donatoni
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos, SP, 13565-905, Brazil.
| | - Patricia Milagros Maquera Huacho
- Department of Physiology and Pathology, São Paulo State University (Unesp), School of Dentistry, Rua Humaitá, 1680, 14801-903, Araraquara, SP, Brazil.
| | - Alessandra Nara de Souza Rastelli
- Department of Restorative Dentistry, São Paulo State University (Unesp), School of Dentistry, Rua Humaitá, 1680, 14801-903, Araraquara, SP, Brazil.
| | - Kleber Thiago de Oliveira
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos, SP, 13565-905, Brazil.
| | - Denise Madalena Palomari Spolidorio
- Department of Physiology and Pathology, São Paulo State University (Unesp), School of Dentistry, Rua Humaitá, 1680, 14801-903, Araraquara, SP, Brazil.
| | - Daniela Leal Zandim-Barcelos
- Department of Diagnosis and Surgery, São Paulo State University (Unesp), School of Dentistry, Rua Humaitá, 1680, 14801-903, Araraquara, SP, Brazil.
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Galaço ARBDS, de Oliveira KT, Donatoni MC, Walton RI, Serra OA. Ion-exchange resin as a new tool for characterisation of coordination compounds and MOFs by NMR spectroscopy. Chem Commun (Camb) 2019; 55:8106-8109. [DOI: 10.1039/c9cc03721g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1H and 13C NMR spectroscopy is used to investigate the organic constituents of paramagnetic MOFs and coordination compounds using a cationic exchange resin. Post-modifications on MOFs were performed and quantitatively determined by this methodology.
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Uliana MP, Vieira YW, Donatoni MC, Corrêa AG, Brocksom U, Brocksom TJ. Oxidation of mono-phenols to para-benzoquinones: a comparative study. J BRAZIL CHEM SOC 2008. [DOI: 10.1590/s0103-50532008000800007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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