1
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Sarabando SN, Dias CJ, Vieira C, Bartolomeu M, Neves MGPMS, Almeida A, Monteiro CJP, Faustino MAF. Sulfonamide Porphyrins as Potent Photosensitizers against Multidrug-Resistant Staphylococcus aureus (MRSA): The Role of Co-Adjuvants. Molecules 2023; 28:molecules28052067. [PMID: 36903314 PMCID: PMC10004250 DOI: 10.3390/molecules28052067] [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: 01/31/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 02/25/2023] Open
Abstract
Sulfonamides are a conventional class of antibiotics that are well-suited to combat infections. However, their overuse leads to antimicrobial resistance. Porphyrins and analogs have demonstrated excellent photosensitizing properties and have been used as antimicrobial agents to photoinactivate microorganisms, including multiresistant Staphylococcus aureus (MRSA) strains. It is well recognized that the combination of different therapeutic agents might improve the biological outcome. In this present work, a novel meso-arylporphyrin and its Zn(II) complex functionalized with sulfonamide groups were synthesized and characterized and the antibacterial activity towards MRSA with and without the presence of the adjuvant KI was evaluated. For comparison, the studies were also extended to the corresponding sulfonated porphyrin TPP(SO3H)4. Photodynamic studies revealed that all porphyrin derivatives were effective in photoinactivating MRSA (>99.9% of reduction) at a concentration of 5.0 μM upon white light radiation with an irradiance of 25 mW cm-2 and a total light dose of 15 J cm-2. The combination of the porphyrin photosensitizers with the co-adjuvant KI during the photodynamic treatment proved to be very promising allowing a significant reduction in the treatment time and photosensitizer concentration by six times and at least five times, respectively. The combined effect observed for TPP(SO2NHEt)4 and ZnTPP(SO2NHEt)4 with KI seems to be due to the formation of reactive iodine radicals. In the photodynamic studies with TPP(SO3H)4 plus KI, the cooperative action was mainly due to the formation of free iodine (I2).
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Affiliation(s)
- Sofia N. Sarabando
- LAQV-Requimte and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Cristina J. Dias
- LAQV-Requimte and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Cátia Vieira
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria Bartolomeu
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - Adelaide Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carlos J. P. Monteiro
- LAQV-Requimte and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (C.J.P.M.); (M.A.F.F.)
| | - Maria Amparo F. Faustino
- LAQV-Requimte and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (C.J.P.M.); (M.A.F.F.)
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2
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Synthesis of New Amino-Functionalized Porphyrins:Preliminary Study of Their Organophotocatalytic Activity. Molecules 2023; 28:molecules28041997. [PMID: 36838985 PMCID: PMC9967531 DOI: 10.3390/molecules28041997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/25/2023] Open
Abstract
The design, synthesis, and initial study of amino-functionalized porphyrins as a new class of bifunctional catalysts for asymmetric organophotocatalysis is described. Two new types of amine-porphyrin hybrids derived from 5,10,15,20-tetraphenylporphyrin (TPPH2), in which a cyclic secondary amine moiety is covalently linked either to a β-pyrrolic position (Type A) or to the p-position of one of the meso phenyl groups (Type B), were prepared by condensation, reductive amination, or amidation reactions from the suitable porphyrins (either formyl or methanamine derivatives) with readily available chiral amines. A preliminary study of the possible use of Type A amine-porphyrin hybrids as asymmetric, bifunctional organophotocatalysts was performed using the chiral, imidazolidinone-catalyzed Diels-Alder cycloaddition between cyclopentadiene 28 and trans-cinnamaldehyde 29 as a benchmark reaction. The yield and the stereochemical outcome of this process, obtained under purely organocatalytic conditions, under dual organophocatalysis, and under bifunctional organophotocatalysis, were compared.
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Moura NMM, Serra VV, Bastos A, Biazotto JC, Castro KADF, Faustino MAF, Lodeiro C, da Silva RS, Neves MDGPMS. New Bis-Cyclometalated Iridium(III) Complexes with β-Substituted Porphyrin-Arylbipyridine as the Ancillary Ligand: Electrochemical and Photophysical Insights. Int J Mol Sci 2022; 23:ijms23147606. [PMID: 35886956 PMCID: PMC9319630 DOI: 10.3390/ijms23147606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 02/05/2023] Open
Abstract
An efficient synthetic access to new cationic porphyrin-bipyridine iridium(III) bis-cyclometalated complexes was developed. These porphyrins bearing arylbipyridine moieties at β-pyrrolic positions coordinated with iridium(III), and the corresponding Zn(II) porphyrin complexes were spectroscopically, electrochemically, and electronically characterized. The features displayed by the new cyclometalated porphyrin-bipyridine iridium(III) complexes, namely photoinduced electron transfer process (PET), and a remarkable efficiency to generate 1O2, allowing us to envisage new challenges and opportunities for their applications in several fields, such as photo(catalysis) and photodynamic therapies.
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Affiliation(s)
- Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.d.G.P.M.S.N.)
- Correspondence: (N.M.M.M.); (V.V.S.); Tel.: +351-234-370-710 (N.M.M.M.)
| | - Vanda Vaz Serra
- Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal
- Correspondence: (N.M.M.M.); (V.V.S.); Tel.: +351-234-370-710 (N.M.M.M.)
| | - Alexandre Bastos
- CICECO, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Juliana C. Biazotto
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, São Paulo 14040-903, Brazil; (J.C.B.); (K.A.D.F.C.); (R.S.d.S.)
| | - Kelly A. D. F. Castro
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, São Paulo 14040-903, Brazil; (J.C.B.); (K.A.D.F.C.); (R.S.d.S.)
| | - Maria Amparo F. Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.d.G.P.M.S.N.)
| | - Carlos Lodeiro
- BIOSCOPE Group, LAQV-REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon, 2829-516 Caparica, Portugal;
- ProteoMass Scientific Society, Madan Park, Rua dos Inventores, 2825-182 Caparica, Portugal
| | - Roberto S. da Silva
- Department of Biomolecular Sciences, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, São Paulo 14040-903, Brazil; (J.C.B.); (K.A.D.F.C.); (R.S.d.S.)
| | - Maria da Graça P. M. S. Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.A.F.F.); (M.d.G.P.M.S.N.)
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Gomes ATPC, Faustino MAF, Neves MGPMS, Almeida A. Bioluminescent Models to Evaluate the Efficiency of Light-Based Antibacterial Approaches. Methods Mol Biol 2022; 2451:631-669. [PMID: 35505039 DOI: 10.1007/978-1-0716-2099-1_34] [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] [Indexed: 06/14/2023]
Abstract
The emergence of microbial resistance to antimicrobials among several common pathogenic microbial strains is an increasing problem worldwide. Thus, it is urgent to develop not only new antimicrobial therapeutics to fight microbial infections, but also new effective, rapid, and inexpensive methods to monitor the efficacy of these new therapeutics. Antimicrobial photodynamic therapy (aPDT) and antimicrobial blue light (aBL) therapy are receiving considerable attention for their antimicrobial potential and represent realistic alternatives to antibiotics. To monitor the photoinactivation process provided by aPDT and aBL, faster and more effective methods are required instead of laborious conventional plating and overnight incubation procedures. Bioluminescent microbial models are very interesting in this context. Light emission from bioluminescent microorganisms is a highly sensitive indication of their metabolic activity and can be used to monitor, in real time, the effects of antimicrobial agents and therapeutics. This chapter reviews the efforts of the scientific community concerning the development of in vitro, ex vivo, and in vivo bioluminescent bacterial models and their potential to evaluate the efficiency of aPDT and aBL in the inactivation of bacteria.
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Affiliation(s)
- Ana T P C Gomes
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal
| | - Maria A F Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Maria G P M S Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Adelaide Almeida
- Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
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5
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Ramos CIV, Monteiro AR, Moura NMM, Faustino MAF, Trindade T, Neves MGPMS. The Interactions of H 2TMPyP, Analogues and Its Metal Complexes with DNA G-Quadruplexes-An Overview. Biomolecules 2021; 11:biom11101404. [PMID: 34680037 PMCID: PMC8533071 DOI: 10.3390/biom11101404] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/16/2021] [Accepted: 09/22/2021] [Indexed: 12/26/2022] Open
Abstract
The evidence that telomerase is overexpressed in almost 90% of human cancers justifies the proposal of this enzyme as a potential target for anticancer drug design. The inhibition of telomerase by quadruplex stabilizing ligands is being considered a useful approach in anticancer drug design proposals. Several aromatic ligands, including porphyrins, were exploited for telomerase inhibition by adduct formation with G-Quadruplex (GQ). 5,10,15,20-Tetrakis(N-methyl-4-pyridinium)porphyrin (H2TMPyP) is one of the most studied porphyrins in this field, and although reported as presenting high affinity to GQ, its poor selectivity for GQ over duplex structures is recognized. To increase the desired selectivity, porphyrin modifications either at the peripheral positions or at the inner core through the coordination with different metals have been handled. Herein, studies involving the interactions of TMPyP and analogs with different DNA sequences able to form GQ and duplex structures using different experimental conditions and approaches are reviewed. Some considerations concerning the structural diversity and recognition modes of G-quadruplexes will be presented first to facilitate the comprehension of the studies reviewed. Additionally, considering the diversity of experimental conditions reported, we decided to complement this review with a screening where the behavior of H2TMPyP and of some of the reviewed metal complexes were evaluated under the same experimental conditions and using the same DNA sequences. In this comparison under unified conditions, we also evaluated, for the first time, the behavior of the AgII complex of H2TMPyP. In general, all derivatives showed good affinity for GQ DNA structures with binding constants in the range of 106–107 M−1 and ligand-GQ stoichiometric ratios of 3:1 and 4:1. A promising pattern of selectivity was also identified for the new AgII derivative.
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Affiliation(s)
- Catarina I. V. Ramos
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (N.M.M.M.); (M.A.F.F.); (M.G.P.M.S.N.)
- Correspondence: ; Tel.: +351-234-370-692
| | - Ana R. Monteiro
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (N.M.M.M.); (M.A.F.F.); (M.G.P.M.S.N.)
- CICECO-Aveiro, Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (N.M.M.M.); (M.A.F.F.); (M.G.P.M.S.N.)
| | - Maria Amparo F. Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (N.M.M.M.); (M.A.F.F.); (M.G.P.M.S.N.)
| | - Tito Trindade
- CICECO-Aveiro, Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Maria Graça P. M. S. Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (A.R.M.); (N.M.M.M.); (M.A.F.F.); (M.G.P.M.S.N.)
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6
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Gomes ATPC, Neves MGPMS, Fernandes R, Ribeiro CF, Cavaleiro JAS, Moura NMM. Unraveling the Photodynamic Activity of Cationic Benzoporphyrin-Based Photosensitizers against Bladder Cancer Cells. Molecules 2021; 26:5312. [PMID: 34500746 PMCID: PMC8434352 DOI: 10.3390/molecules26175312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/16/2021] [Accepted: 08/26/2021] [Indexed: 02/01/2023] Open
Abstract
In this study, we report the preparation of new mono-charged benzoporphyrin complexes by reaction of the appropriate neutral benzoporphyrin with (2,2'-bipyridine)dichloroplatinum(II) and of the analogs' derivatives synthesized through alkylation of the neutral scaffold with iodomethane. All derivatives were incorporated into polyvinylpyrrolidone (PVP) micelles. The ability of the resultant formulations to generate reactive oxygen species was evaluated, mainly the singlet oxygen formation. Then, the capability of the PVP formulations to act as photosensitizers against bladder cancer cells was assessed. Some of the studied formulations were the most active photosensitizers causing a decrease in HT-1376 cells' viability. This creates an avenue to further studies related to bladder cancer cells.
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Affiliation(s)
- Ana T. P. C. Gomes
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (R.F.); (C.F.R.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal
- Center for Interdisciplinary Research in Health (CIIS), Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | | | - Rosa Fernandes
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (R.F.); (C.F.R.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Carlos F. Ribeiro
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (R.F.); (C.F.R.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal
| | - José A. S. Cavaleiro
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Nuno M. M. Moura
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
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7
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An insight into the vicarious nucleophilic substitution reaction of 2-nitro-5,10,15,20-tetraphenylporphyrin with p-chlorophenoxyacetonitrile: Synthesis and gas-phase fragmentation studies. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.04.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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8
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Castro KADF, Moura NMM, Figueira F, Ferreira RI, Simões MMQ, Cavaleiro JAS, Faustino MAF, Silvestre AJD, Freire CSR, Tomé JPC, Nakagaki S, Almeida A, Neves MGPMS. New Materials Based on Cationic Porphyrins Conjugated to Chitosan or Titanium Dioxide: Synthesis, Characterization and Antimicrobial Efficacy. Int J Mol Sci 2019; 20:E2522. [PMID: 31121942 PMCID: PMC6566955 DOI: 10.3390/ijms20102522] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/15/2019] [Accepted: 05/18/2019] [Indexed: 11/28/2022] Open
Abstract
The post-functionalization of 5,10,15-tris(1-methylpyridinium-4-yl)-20-(pentafluorophenyl)porphyrin tri-iodide, known as a highly efficient photosensitizer (PS) for antimicrobial photodynamic therapy (aPDT), in the presence of 3- or 4-mercaptobenzoic acid, afforded two new tricationic porphyrins with adequate carboxylic pending groups to be immobilized on chitosan or titanium oxide. The structural characterization of the newly obtained materials confirmed the success of the porphyrin immobilization on the solid supports. The photophysical properties and the antimicrobial photodynamic efficacy of the non-immobilized porphyrins and of the new conjugates were evaluated. The results showed that the position of the carboxyl group in the mercapto units or the absence of these substituents in the porphyrin core could modulate the action of the photosensitizer towards the bioluminescent Gram-negative Escherichia coli bacterium. The antimicrobial activity was also influenced by the interaction between the photosensitizer and the type of support (chitosan or titanium dioxide). The new cationic porphyrins and some of the materials were shown to be very stable in PBS and effective in the photoinactivation of E. coli bacterium. The physicochemical properties of TiO2 allowed the interaction of the PS with its surface, increasing the absorption profile of TiO2, which enables the use of visible light, inactivating the bacteria more efficiently than the corresponding PS immobilized on chitosan.
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Affiliation(s)
- Kelly A D F Castro
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Nuno M M Moura
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Flávio Figueira
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
- CICECO, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - Rosalina I Ferreira
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Mário M Q Simões
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - José A S Cavaleiro
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Amparo F Faustino
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | - Carmen S R Freire
- CICECO, Departamento de Química, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - João P C Tomé
- CQE, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, n1, 1049-001 Lisboa, Portugal.
| | - Shirley Nakagaki
- Laboratório de Bioinorgânica e Catálise, Departamento de Química, Universidade Federal do Paraná, Curitiba, Paraná 81531-990, Brasil.
| | - A Almeida
- CESAM, Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Graça P M S Neves
- QOPNA & LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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9
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Cardote TAF, Barata JFB, Amador C, Alves E, Neves MGPMS, Cavaleiro JAS, Cunha Â, Almeida A, Faustino MAF. Evaluation of meso-substituted cationic corroles as potential antibacterial agents. AN ACAD BRAS CIENC 2018; 90:1175-1185. [PMID: 29873668 DOI: 10.1590/0001-3765201820170824] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 12/06/2017] [Indexed: 12/24/2022] Open
Abstract
Cationic derivatives of 5,10,15-tris[4-(pyridin-4-ylsulphanyl)-2,3,5,6-tetrafluorophenyl]-corrolategallium(III)pyridine and 5,10,15-tris[4-(pyridin-2-ylsulfanyl)-2,3,5,6-tetrafluorophenyl]-correlategallium(III)pyridine were synthesized and their photosensitizing properties against the naturally bioluminescent Gram-negative bacterium Allivibrio fischeri were evaluated. The cationic corrole derivatives exhibited antibacterial activity at micromolar concentrations against this Gram-negative bacterium strain.
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Affiliation(s)
| | | | - Carolina Amador
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Eliana Alves
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | | | | | - Ângela Cunha
- Centro de Estudos do Ambiente e do Mar, Department of Biology, University of Aveiro, Aveiro, Portugal
| | - Adelaide Almeida
- Centro de Estudos do Ambiente e do Mar, Department of Biology, University of Aveiro, Aveiro, Portugal
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Chen LL, Zheng ML, Zheng YC, Jin F, Chai QQ, Zhao YY, Meng XW, Liu YH, Duan XM. Laser-Induced Antibacterial Activity of Novel Symmetric Carbazole-Based Ethynylpyridine Photosensitizers. ACS OMEGA 2018; 3:3737-3743. [PMID: 30023877 PMCID: PMC6044962 DOI: 10.1021/acsomega.8b00150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/15/2018] [Indexed: 05/08/2023]
Abstract
In this study, two kinds of novel carbazole-based ethynylpyridine salts: 3,6-bis[2-(1-methylpyridinium)ethynyl]-9-pentyl-carbazole diiodide (BMEPC) and 3,6-bis[2-(1-methylpyridinium)ethynyl]-9-methyl-carbazole diiodide (BMEMC) have been employed as photosensitizers owing to their excellent antibacterial activity. These molecules possess symmetric A-π-D-π-A-type structures, which would bring in the unique optical properties. The inhibition zone measurement of a gradient concentration from 0 to 100 μM showed BMEPC and BMEMC photoinduced antibacterial activity against Escherichia coli. Diameters of zone of inhibition were up to 15 and 14 mm under laser irradiations. Under the exposure of the laser of 442 nm with a power density of 20 mW/cm2, the minimum inhibitory concentrations (MICs) of BMEPC on E. coli were between 3.5 and 6.9 μM and that of BMEMC were between 9.4 and 18.8 μM, respectively. In the dark experiments as a control, the MIC value is between 6.9 and 13.8 μM for BMEPC, whereas it is between 187.5 and 225.0 μM for BMEMC. By the comparison of the MIC values of BMEPC and BMEMC with laser irradiation and in dark, the laser-induced toxicity on bacteria is more evident, though both of the derivatives have dark toxicity. With the laser irradiation duration of 30 s and 10 min for BMEPC and BMEMC, respectively, the survival rate of E. coli approximates zero. An antibacterial mechanism has been proposed based on the electron paramagnetic resonance characterization, which indicates that a nitride radical is generated under laser irradiation. The carbazole-based ethynylpyridine photosensitizers would provide high potential for further applications in photodynamic therapy.
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Affiliation(s)
- Lin-Lin Chen
- Laboratory
of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials
and Interfacial Science, Technical Institute
of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing 100190, P. R. China
- School
of Future Technologies, University of Chinese
Academy of Sciences, Yanqihu Campus, Huaibei Town, Huaibei Zhang, Huairou
District, Beijing 101407, P. R. China
| | - Mei-Ling Zheng
- Laboratory
of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials
and Interfacial Science, Technical Institute
of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing 100190, P. R. China
| | - Yong-Chao Zheng
- Laboratory
of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials
and Interfacial Science, Technical Institute
of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing 100190, P. R. China
| | - Feng Jin
- Laboratory
of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials
and Interfacial Science, Technical Institute
of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing 100190, P. R. China
| | - Qian-Qian Chai
- Laboratory
of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials
and Interfacial Science, Technical Institute
of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing 100190, P. R. China
| | - Yuan-Yuan Zhao
- Chongqing
Institute of Green and Intelligent Technology, Chinese Academy of
Sciences, No. 266 Fangzheng
Avenue, Shuitu Technology Development Zone, Beibei
District, Chongqing 400714, P. R. China
| | - Xian-Wei Meng
- Laboratory
of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials
and Interfacial Science, Technical Institute
of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing 100190, P. R. China
| | - Yan-Hong Liu
- Laboratory
of Organic NanoPhotonics and CAS Key Laboratory of Bio-Inspired Materials
and Interfacial Science, Technical Institute
of Physics and Chemistry, Chinese Academy of Sciences, No. 29, Zhongguancun East Road, Beijing 100190, P. R. China
| | - Xuan-Ming Duan
- Chongqing
Institute of Green and Intelligent Technology, Chinese Academy of
Sciences, No. 266 Fangzheng
Avenue, Shuitu Technology Development Zone, Beibei
District, Chongqing 400714, P. R. China
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11
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Moura NMM, Mariz IFA, Cavaleiro JAS, Silva AMS, Lodeiro C, Martinho JMG, Maçôas EMS, Neves MGPMS. Porphyrin-Oligopyridine Triads: Synthesis and Optical Properties. J Org Chem 2018; 83:5282-5287. [DOI: 10.1021/acs.joc.8b00208] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nuno M. M. Moura
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- BIOSCOPE Group, LAQV@REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon, 2829-516, Monte da Caparica, Portugal
| | - Inês F. A. Mariz
- CQFM and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - José A. S. Cavaleiro
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Artur M. S. Silva
- QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carlos Lodeiro
- BIOSCOPE Group, LAQV@REQUIMTE, Chemistry Department, Faculty of Science and Technology, University NOVA of Lisbon, 2829-516, Monte da Caparica, Portugal
- ProteoMass Scientific Society, Madan Parque, Rua dos Inventores 2825-182, Monte da Caparica, Portugal
| | - José M. G. Martinho
- CQFM and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Ermelinda M. S. Maçôas
- CQFM and IN-Institute of Nanoscience and Nanotechnology, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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Lanzilotto A, Kyropoulou M, Constable EC, Housecroft CE, Meier WP, Palivan CG. Porphyrin-polymer nanocompartments: singlet oxygen generation and antimicrobial activity. J Biol Inorg Chem 2018; 23:109-122. [PMID: 29218642 PMCID: PMC5756573 DOI: 10.1007/s00775-017-1514-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 11/12/2017] [Indexed: 11/28/2022]
Abstract
A new water-soluble photocatalyst for singlet oxygen generation is presented. Its absorption extends to the red part of the spectrum, showing activity up to irradiation at 660 nm. Its efficiency has been compared to that of a commercial analogue (Rose Bengal) for the oxidation of L-methionine. The quantitative and selective oxidation was promising enough to encapsulate the photocatalyst in polymersomes. The singlet oxygen generated in this way can diffuse and remain active for the oxidation of L-methionine outside the polymeric compartment. These results made us consider the use of these polymersomes for antimicrobial applications. E. coli colonies were subjected to oxidative stress using the photocatalyst-polymersome conjugates and nearly all the colonies were damaged upon extensive irradiation while under the same red LED light irradiation, liquid cultures in the absence of porphyrin or porphyrin-loaded polymersomes were unharmed.
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Affiliation(s)
- Angelo Lanzilotto
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Myrto Kyropoulou
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Edwin C Constable
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Catherine E Housecroft
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland.
| | - Wolfgang P Meier
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - Cornelia G Palivan
- Department of Chemistry, University of Basel, BPR 1096, Mattenstrasse 24a, 4058, Basel, Switzerland.
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Cerqueira AFR, Moura NMM, Serra VV, Faustino MAF, Tomé AC, Cavaleiro JAS, Neves MGPMS. β-Formyl- and β-Vinylporphyrins: Magic Building Blocks for Novel Porphyrin Derivatives. Molecules 2017; 22:molecules22081269. [PMID: 28758915 PMCID: PMC6152163 DOI: 10.3390/molecules22081269] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 07/21/2017] [Accepted: 07/23/2017] [Indexed: 02/01/2023] Open
Abstract
Porphyrins bearing formyl or vinyl groups have been explored as starting materials to prepare new compounds with adequate features for different applications. In this review it is discussed mainly synthetic strategies based on the reaction of meso-tetraarylporphyrins bearing those groups at β-pyrrolic positions. The use of some of the obtained porphyrin derivatives for further transformations, namely via pericyclic reactions, is also highlighted.
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Affiliation(s)
- Ana F R Cerqueira
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Nuno M M Moura
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Vanda Vaz Serra
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal.
| | - M Amparo F Faustino
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Augusto C Tomé
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - José A S Cavaleiro
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - M Graça P M S Neves
- Department of Chemistry and QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal.
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