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Santos MBD, Carvalho Marques B, Miranda Ayusso G, Rocha Garcia MA, Chiquetto Paracatu L, Pauli I, Silva Bolzani V, Defini Andricopulo A, Farias Ximenes V, Zeraik ML, Regasini LO. Chalcones and their B-aryl analogues as myeloperoxidase inhibitors: In silico, in vitro and ex vivo investigations. Bioorg Chem 2021; 110:104773. [PMID: 33744807 DOI: 10.1016/j.bioorg.2021.104773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 01/29/2021] [Accepted: 02/22/2021] [Indexed: 12/23/2022]
Abstract
In the present study, a series of chalcones and their B-aryl analogues were prepared and evaluate as inhibitors of myeloperoxidase (MPO) chlorinating activity, using in vitro and ex vivo assays. Among these, B-thiophenyl chalcone (analogue 9) demonstrated inhibition of in vitro and ex vivo MPO chlorinating activity, exhibiting IC50 value of 0.53 and 19.2 µM, respectively. Potent ex vivo MPO inhibitors 5, 8 and 9 were not toxic to human neutrophils at 50 µM, as well as displayed weak 2,2-diphenyl-1-pycrylhydrazyl radical (DPPH•) and hypochlorous acid (HOCl) scavenger abilities. Docking simulations indicated binding mode of MPO inhibitors, evidencing hydrogen bonds between the amino group at 4'position (ring A) of chalcones with Gln91, Asp94, and Hys95 MPO residues. In this regard, the efficacy and low toxicity promoted aminochalcones and arylic analogues to the rank of hit compounds in the search for new non-steroidal anti-inflammatory compounds.
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Affiliation(s)
- Mariana Bastos Dos Santos
- Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), 15054-000 São José do Rio Preto, SP, Brazil
| | - Beatriz Carvalho Marques
- Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), 15054-000 São José do Rio Preto, SP, Brazil
| | - Gabriela Miranda Ayusso
- Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), 15054-000 São José do Rio Preto, SP, Brazil
| | - Mayara Aparecida Rocha Garcia
- Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), 15054-000 São José do Rio Preto, SP, Brazil
| | - Luana Chiquetto Paracatu
- Department of Chemistry, Faculty of Sciences, São Paulo State University (UNESP), 17033-360 Bauru, SP, Brazil
| | - Ivani Pauli
- Physics Institute of São Carlos, University of São Paulo, 13563-120 São Carlos, SP, Brazil
| | - Vanderlan Silva Bolzani
- Department of Organic Chemistry, Institute of Chemistry, São Paulo State University, 14800-900 Araraquara, SP, Brazil
| | | | - Valdecir Farias Ximenes
- Department of Chemistry, Faculty of Sciences, São Paulo State University (UNESP), 17033-360 Bauru, SP, Brazil
| | - Maria Luiza Zeraik
- Department of Chemistry, State University of Londrina (UEL), 86051-990 Londrina, PR, Brazil.
| | - Luis Octavio Regasini
- Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), 15054-000 São José do Rio Preto, SP, Brazil.
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Emeri FTDASD, Rosalen PL, Paganini ÉR, Garcia MAR, Nazaré AC, Lazarini JG, Alencar SMD, Regasini LO, Sardi JDCO. Antimicrobial activity of nitrochalcone and pentyl caffeate against hospital pathogens results in decreased microbial adhesion and biofilm formation. Biofouling 2019; 35:129-142. [PMID: 30950296 DOI: 10.1080/08927014.2019.1574763] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 12/28/2018] [Accepted: 01/09/2019] [Indexed: 06/09/2023]
Abstract
The present study investigated the antimicrobial, anti-adhesion and anti-biofilm activity of the modified synthetic molecules nitrochalcone (NC-E05) and pentyl caffeate (C5) against microorganisms which have a high incidence in hospital-acquired infections. The compounds were further tested for their preliminary systemic toxicity in vivo. NC-E05 and C5 showed antimicrobial activity, with minimum inhibitory concentrations (MICs) ranging between 15.62 and 31.25 μg ml-1. Treatment with NC-E05 and C5 at 1 × MIC and/or 10 × MIC significantly reduced mono or mixed-species biofilm formation and viability. At MIC/2, the compounds decreased microbial adhesion to HaCaT keratinocytes from 1 to 3 h (p < 0.0001). In addition, NC-E05 and C5 demonstrated low toxicity in vivo in the Galleria mellonella model at anti-biofilm concentrations. Thus, the chemical modification of these molecules proved to be effective in the proposed anti-biofilm activity, opening opportunities for the development of new antimicrobials.
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Affiliation(s)
| | - Pedro Luiz Rosalen
- a Department of Physiological Sciences , Piracicaba Dental School, University of Campinas , Piracicaba , SP , Brazil
| | - Éder Ramos Paganini
- b Department of Chemistry and Environmental Sciences , Júlio de Mesquita Filho University , São Jose do Rio Preto , Brazil
| | - Mayara Aparecida Rocha Garcia
- b Department of Chemistry and Environmental Sciences , Júlio de Mesquita Filho University , São Jose do Rio Preto , Brazil
| | - Ana Carolina Nazaré
- b Department of Chemistry and Environmental Sciences , Júlio de Mesquita Filho University , São Jose do Rio Preto , Brazil
| | - Josy Goldoni Lazarini
- a Department of Physiological Sciences , Piracicaba Dental School, University of Campinas , Piracicaba , SP , Brazil
| | - Severino Matias de Alencar
- c Department of Agri-Food Industry, Food and Nutrition , "Luiz de Queiroz" College of Agriculture, University of São Paulo , Piracicaba , Brazil
| | - Luis Octávio Regasini
- b Department of Chemistry and Environmental Sciences , Júlio de Mesquita Filho University , São Jose do Rio Preto , Brazil
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Trein MR, Rodrigues E Oliveira L, Rigo GV, Garcia MAR, Petro-Silveira B, da Silva Trentin D, Macedo AJ, Regasini LO, Tasca T. Anti-Trichomonas vaginalis activity of chalcone and amino-analogues. Parasitol Res 2018; 118:607-615. [PMID: 30535524 DOI: 10.1007/s00436-018-6164-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Accepted: 11/22/2018] [Indexed: 01/15/2023]
Abstract
Trichomoniasis is the most common non-viral sexually transmitted disease worldwide and can lead to serious consequences in reproductive health, cancer, and HIV acquisition. The current approved treatment present adverse effects and drug resistance data on this neglected parasitic infection is underestimated. Chalcones are a family of molecules that present biological applications, such as activity against many pathogenic organisms including protozoan pathogens. Chalcone (1) and three amino-analogues (2-4) were synthesized by Claisen-Schmidt condensation reaction and had their activity evaluated against the parasitic protozoan Trichomonas vaginalis. This bioassay indicated the presence and position of the amino group on ring A was crucial for anti-T. vaginalis activity. Among these, 3'-aminochalcone (3) presented the most potent effect and showed high cytotoxicity against human vaginal cells. On the other hand, 3 was not able to exhibit toxicity against Galleria mellonella larvae, as well as the hemolytic effect on human erythrocytes. Trophozoites of T. vaginalis were treated with 3, and did not present significant reactive oxygen species (ROS) accumulation, but induced a significantly higher ROS accumulation in human neutrophils after co-incubation. T. vaginalis pyruvate:ferredoxin oxidoreductase (PFOR) and β-tubulin gene expression was not affected by 3.
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Affiliation(s)
- Márcia Rodrigues Trein
- Laboratório de Pesquisa em Parasitologia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil
| | - Lígia Rodrigues E Oliveira
- Laboratory of Antibiotics and Chemotherapeutics, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), Rua Cristóvão Colombo 2265, São José do Rio Preto, SP, 15054-000, Brazil
| | - Graziela Vargas Rigo
- Laboratório de Pesquisa em Parasitologia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil
| | - Mayara Aparecida Rocha Garcia
- Laboratory of Antibiotics and Chemotherapeutics, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), Rua Cristóvão Colombo 2265, São José do Rio Preto, SP, 15054-000, Brazil
| | - Brenda Petro-Silveira
- Laboratório de Pesquisa em Parasitologia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil
| | - Danielle da Silva Trentin
- Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, 90050-170, Brazil
| | - Alexandre José Macedo
- Laboratório de Biofilmes e Diversidade Microbiana, Faculdade de Farmácia, Universidade do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil
| | - Luis Octávio Regasini
- Laboratory of Antibiotics and Chemotherapeutics, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (Unesp), Rua Cristóvão Colombo 2265, São José do Rio Preto, SP, 15054-000, Brazil
| | - Tiana Tasca
- Laboratório de Pesquisa em Parasitologia, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Av. Ipiranga 2752, Porto Alegre, RS, 90610-000, Brazil.
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