1
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Ferreira GRS, da Silva PM, Lopes W, Feitosa APS, Coelho LCBB, Brayner FA, Alves LC, Paiva PMG, de Moura MC, Vainstein MH, Napoleão TH. Pomegranate sarcotesta lectin (PgTeL) inhibits planktonic growth and disrupts biofilm formed by Cryptococcus neoformans. J Appl Microbiol 2023:lxad150. [PMID: 37437916 DOI: 10.1093/jambio/lxad150] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Indexed: 07/14/2023]
Abstract
AIMS We investigated the putative fungistatic and fungicidal activities of pomegranate sarcotesta lectin (PgTeL) against Cryptococcus neoformans B3501 (serotype D), specifically the ability of PgTeL to inhibit yeast capsule and biofilm formation in this strain. METHODS AND RESULTS PgTeL showed a minimum inhibitory concentration of 172.0 μg ml-1, at which it did not exhibit a fungicidal effect. PgTeL concentrations of 4.0-256.0 μg ml-1 reduced biofilm biomass by 31.0-64.0%. Furthermore, 32.0-256.0 μg/mL PgTeL decreased the metabolic activity of the biofilm by 32.0-93.0%. Scanning electron microscopy images clearly revealed disruption of the biofilm matrix. Moreover, PgTeL disrupted preformed biofilms. At concentrations of 8.0-256.0 μg ml-1, PgTeL reduced metabolic activity in C. neoformans by 36.0-92.0%. However, PgTeL did not inhibit the ability of B3501 cells to form capsules under stress conditions. CONCLUSIONS PgTeL inhibited biofilm formation and disrupted preformed biofilms, demonstrating its potential for use as an anticryptococcal agent.
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Affiliation(s)
| | | | - William Lopes
- Laboratório de Biologia de Fungos de Importância Médica e Biotecnológica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ana Paula Sampaio Feitosa
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Brazil
- Instituto Keizo Asami, Universidade Federal de Pernambuco, Recife, Brazil
| | | | - Fábio André Brayner
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Brazil
- Instituto Keizo Asami, Universidade Federal de Pernambuco, Recife, Brazil
| | - Luiz Carlos Alves
- Instituto Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Brazil
- Instituto Keizo Asami, Universidade Federal de Pernambuco, Recife, Brazil
| | | | - Maiara Celine de Moura
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
| | - Marilene Henning Vainstein
- Laboratório de Biologia de Fungos de Importância Médica e Biotecnológica, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Brazil
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2
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da Rosa Monte Machado G, Neiva Lavorato S, Lopes W, Henning Vainstein M, Lettieri Teixeira M, José Alves R, de Andrade SF, Meneghello Fuentefria A. A chloroacetamide derivative as a potent candidate for fusariosis treatment. Braz J Microbiol 2022; 53:1289-1295. [PMID: 35648381 DOI: 10.1007/s42770-022-00771-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 05/25/2021] [Accepted: 12/24/2021] [Indexed: 11/27/2022] Open
Abstract
Fusariosis has presented a significant increase in their incidence in the last years. This epidemiological panorama probably is due to the increasing profile of refractory susceptibility of Fusarium spp. to available drugs, especially in immunocompromised individuals. Thus, the development of new compounds with effectiveness on these organisms is a necessity. This study evaluated the antifungal potential of a chloroacetamide derivative (4-BFCA) against resistant Fusarium strains. As a result, the compound was effective against all strains (MIC range 12.5-50 μg/mL). The time kill assay demonstrated that 4-BFCA presents a concentration-dependent fungicidal action. Although its action mechanism has not yet been elucidated, it was possible to observe its efficacy through damages and alterations provoked along the hyphae of Fusarium spp. 4-BFCA maintained a high survival rate of Tenebrio molitor larvae, suggesting that it does not cause acute systemic toxicity on this host at the concentration evaluated. In addition, 4-BFCA was 83.33% effective in combating a fungal infection in vivo on the chorioallantoid membrane of embryonated eggs. Our results are very promising and arouse interest to investigate the action of 4-BFCA on Fusarium strains since it acts as a possible candidate for the development of new therapies for the treatment of fusariosis.
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Affiliation(s)
- Gabriella da Rosa Monte Machado
- Graduate Program in Agricultural Microbiology and Environment, Federal University of Rio Grande Do Sul, Sarmento Leite no 500 - Farroupilha, Porto Alegre, RS, 90050-170, Brazil. .,Laboratório de Pesquisa Em Micologia Aplicada, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
| | - Stefânia Neiva Lavorato
- Center for Biological and Health Sciences, Federal University of Oeste da Bahia, Rua da Prainha no 1326 Morada Nobre, Barreiras, BA, 47810-047, Brazil
| | - William Lopes
- Biotechnology Center, Federal University of Rio Grande Do Sul, Bento Gonçalves no 9500 - Campus do Vale, Porto Alegre, RS, 91501-970, Brazil
| | - Marilene Henning Vainstein
- Biotechnology Center, Federal University of Rio Grande Do Sul, Bento Gonçalves no 9500 - Campus do Vale, Porto Alegre, RS, 91501-970, Brazil
| | - Mário Lettieri Teixeira
- Pharmacology Laboratory, Federal Catarinense Institute, Highway SC 283 - Fragosos, Campus Concórdia, Concórdia, SC, 89703-720, Brazil
| | - Ricardo José Alves
- Department of Pharmaceutical Products, Faculty of Pharmacy, Federal University of Minas Gerais, Presidente Antônio Carlos no 6627 - Campus Pampulha, Belo Horizonte, Belo Horizonte, MG, 31270-901, Brazil
| | - Saulo Fernandes de Andrade
- Graduate Program in Agricultural Microbiology and Environment, Federal University of Rio Grande Do Sul, Sarmento Leite no 500 - Farroupilha, Porto Alegre, RS, 90050-170, Brazil
| | - Alexandre Meneghello Fuentefria
- Graduate Program in Agricultural Microbiology and Environment, Federal University of Rio Grande Do Sul, Sarmento Leite no 500 - Farroupilha, Porto Alegre, RS, 90050-170, Brazil
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3
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Ehrhardt A, Mandelli JZA, Bérgamo V, Lopes W, Donato RK, Zanette RA, Fuentefria AM. Glass ionomer cement modified by a imidazolium salt: adding antifungal properties to a biomaterial. Braz J Microbiol 2021; 52:1347-1352. [PMID: 33954929 DOI: 10.1007/s42770-021-00511-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/10/2020] [Accepted: 04/27/2021] [Indexed: 10/21/2022] Open
Abstract
We present the structural modification of a commercially available glass ionomer cement by inserting the imidazolium salt 1-n-hexadecyl-3-methylimidazolium chloride (C16MImCl), composing a new biomaterial with antifungal biofilm activity. Test specimens were prepared using a commercial glass ionomer cement to which 10 ppm of cetylpyridinium chloride (reference ionic antifungal agent) or C16MImCl were added. The feasibility and hypoallergenicity of the new biomaterial were assessed by microhardness plastic deformation and chorioallantoic membrane assays. Colony counting and scanning electron microscopy were used to evaluate the modified specimens' antibiofilm activity against three multidrug-resistant Candida species. The modified glass ionomer cement presented a strong antibiofilm activity against Candida spp., without losing its original micromechanical and hypoallergenic properties, rendering it a promising candidate for further application in dentistry.
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Affiliation(s)
- Alexandre Ehrhardt
- Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, 90050-170, Brazil. .,Laboratory of Biomedical Science, Universidade Luterana Do Brasil (ULBRA), Br 285, km 335, Carazinho, RS, 99500-000, Brazil.
| | | | - Vanessa Bérgamo
- Laboratory of Applied Mycology, UFRGS, Porto Alegre, RS, 90610-000, Brazil
| | - William Lopes
- Biotechnology Center, UFRGS, Porto Alegre, RS, 91501-970, Brazil
| | - Ricardo Keitel Donato
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Régis A Zanette
- Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, 90050-170, Brazil
| | - Alexandre Meneghello Fuentefria
- Postgraduate Program in Biological Sciences: Pharmacology and Therapeutics, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, 90050-170, Brazil.,Laboratory of Applied Mycology, UFRGS, Porto Alegre, RS, 90610-000, Brazil
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4
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Machado GDRM, Pippi B, Berlitz S, Diedrich D, Defferrari D, Lopes W, Gnoatto SCB, Kulkamp-Guerreiro IC, Vainstein MH, Jean M, Van de Weghe P, de Andrade SF, Fuentefria AM. Ex vivo potential of a quinoline-derivative nail lacquer as a new alternative for dermatophytic onychomycosis treatment. J Med Microbiol 2021; 70. [PMID: 33502306 DOI: 10.1099/jmm.0.001314] [Citation(s) in RCA: 0] [Impact Index Per Article: 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] [Indexed: 11/18/2022] Open
Abstract
Introduction. Onychomycosis infections currently show a significant increase, affecting about 10 % of the world population. Trichophyton rubrum is the main agent responsible for about 80 % of the reported infections. The clinical cure for onychomycosis is extremely difficult and effective new antifungal therapy is needed.Hypothesis/Gap Statement. Ex vivo onychomycosis models using porcine hooves can be an excellent alternative for evaluating the efficacy of new anti-dermatophytic agents in a nail lacquer.Aim. Evaluation of the effectiveness of a nail lacquer containing a quinoline derivative on an ex vivo onychomycosis model using porcine hooves, as well as the proposal of a plausible antifungal mechanism of this derivative against dermatophytic strains.Methodology. The action mechanism of a quinoline derivative was evaluated through the sorbitol protection assay, exogenous ergosterol binding, and the determination of the dose-response curves by time-kill assay. Scanning electron microscopy evaluated the effect of the derivative in the fungal cells. The efficacy of a quinoline-derivative nail lacquer on an ex vivo onychomycosis model using porcine hooves was evaluated as well.Results. The quinoline derivative showed a time-dependent fungicidal effect, demonstrating reduction and damage in the morphology of dermatophytic hyphae. In addition, the ex vivo onychomycosis model was effective in the establishment of infection by T. rubrum.Conclusion. Treatment with the quinoline-derivative lacquer showed a significant inhibitory effect on T. rubrum strain in this infection model. Finally, the compound presents high potential for application in a formulation such as nail lacquer as a possible treatment for dermatophytic onychomycosis.
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Affiliation(s)
- Gabriella da Rosa Monte Machado
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Bruna Pippi
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Simone Berlitz
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Denise Diedrich
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Diego Defferrari
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - William Lopes
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Simone Cristina Baggio Gnoatto
- Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Irene Clemes Kulkamp-Guerreiro
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Nanotecnologia Farmacêutica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Mickael Jean
- Université de Rennes 1, Institut des Sciences Chimiques de Rennes - UMR CNRS 6226 Equipe COrInt, F- 35000 Rennes, France
| | - Pierre Van de Weghe
- Université de Rennes 1, Institut des Sciences Chimiques de Rennes - UMR CNRS 6226 Equipe COrInt, F- 35000 Rennes, France
| | - Saulo Fernandes de Andrade
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Alexandre Meneghello Fuentefria
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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5
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Bazana LCG, Carvalho ÂR, Silveira GP, S. de Oliveira LF, Teixeira ML, Lopes W, Vainstein MH, Barbosa FAR, Russo TVC, Sá MM, Canto RFS, Fuentefria AM. Allylic Selenocyanates as Antifungal Agents Against Pathogenic
Candida
Species. ChemistrySelect 2020. [DOI: 10.1002/slct.202002170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Luana C. G. Bazana
- Laboratório de Pesquisa em Micologia Aplicada Faculdade de Farmácia-Anexo 2, UFRGS Rua São Luis 154 90470440 Porto Alegre Brazil
| | - Ânderson R. Carvalho
- Laboratório de Pesquisa em Micologia Aplicada Faculdade de Farmácia-Anexo 2, UFRGS Rua São Luis 154 90470440 Porto Alegre Brazil
| | - Gustavo P. Silveira
- Departamento de Química Orgânica Instituto de Química, UFRGS Avenida Bento Gonçalves 9500 90650-001 Porto Alegre Brazil
| | | | - Mário L. Teixeira
- Laboratório de Pesquisa em Toxicologia e Farmacologia IFC SC 283 -Km 8 89700-000 Concordia Brazil
| | - William Lopes
- Departamento de Biologia Molecular e Biotecnologia UFRGS Avenida Bento Gonçalves 9500 91501-970 Porto Alegre Brazil
| | - Marilene H. Vainstein
- Departamento de Biologia Molecular e Biotecnologia UFRGS Avenida Bento Gonçalves 9500 91501-970 Porto Alegre Brazil
| | - Flavio A. R. Barbosa
- Departamento de Química, UFSC Rua Engenheiro Agronômico Andrei Cristian Ferreira 88040-900 Florianópolis Brazil
| | - Theo V. C. Russo
- Departamento de Química, UFSC Rua Engenheiro Agronômico Andrei Cristian Ferreira 88040-900 Florianópolis Brazil
| | - Marcus M. Sá
- Departamento de Química, UFSC Rua Engenheiro Agronômico Andrei Cristian Ferreira 88040-900 Florianópolis Brazil
| | - Rômulo F. S. Canto
- Departamento de Farmacociências UFCSPA Rua Sarmento Leite 287 90050-170 Porto Alegre Brazil
| | - Alexandre M. Fuentefria
- Laboratório de Pesquisa em Micologia Aplicada Faculdade de Farmácia-Anexo 2, UFRGS Rua São Luis 154 90470440 Porto Alegre Brazil
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6
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da Silva NM, Gentz CDB, Reginatto P, Fernandes THM, Kaminski TFA, Lopes W, Quatrin PM, Vainstein MH, Abegg MA, Lopes MS, Fuentefria AM, de Andrade SF. 8-Hydroxyquinoline 1,2,3-triazole derivatives with promising and selective antifungal activity. Med Mycol 2020; 59:431-440. [PMID: 32692811 DOI: 10.1093/mmy/myaa061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 04/01/2020] [Revised: 06/16/2020] [Accepted: 06/30/2020] [Indexed: 01/15/2023] Open
Abstract
Fungal infections that affect humans and plants have increased significantly in recent decades. However, these pathogens are still neglected when compared to other infectious agents. Due to the high prevalence of these infections, the need for new molecules with antifungal potential is recognized, as pathogenic species are developing resistance to the main drugs available. This work reports the design and synthesis of 1,2,3-triazole derivatives of 8-hydroxyquinoline, as well as the determination of their activities against a panel of fungal species: Candida spp., Trichosporon asahii, Magnusiomyces capitatus, Microsporum spp., Trichophyton spp. and Fusarium spp. The triazoles 5-(4-phenyl-1H-1,2,3-triazol-1-yl)quinolin-8-ol (12) and 5-(4-(cyclohex-1-en-1-yl)-1H-1,2,3-triazol-1-yl)quinolin-8-ol (16) were more promising, presenting minimum inhibitory concentration (MIC) values between 1-16 µg/ml for yeast and 2-4 µg/ml for dermatophytes. However, no relevant anti-Fusarium spp. activity was observed. In the time-kill assays with Microsporum canis, 12 and 16 presented time-dependent fungicide profile at 96 h and 120 h in all evaluated concentrations, respectively. For Candida guilliermondii, 12 was fungicidal at all concentrations at 6 h and 16 exhibited a predominantly fungistatic profile. Both 12 and 16 presented low leukocyte toxicity at 4 µg/ml and the cell viability was close to 100% after the treatment with 12 at all tested concentrations. The sorbitol assay combined with SEM suggest that damages on the fungal cell wall could be involved in the activity of these derivatives. Given the good results obtained with this series, scaffold 4-(cycloalkenyl or phenyl)-5-triazol-8-hydroxyquinoline appears to be a potential pharmacophore for exploration in the development of new antifungal agents.
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Affiliation(s)
- Nailí Moreira da Silva
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Caroline de Bem Gentz
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Paula Reginatto
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Thaís Helena Maciel Fernandes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | - William Lopes
- Departmento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Priscilla M Quatrin
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marilene Henning Vainstein
- Departmento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Maxwel Adriano Abegg
- Instituto de Ciências Exatas e Tecnologia, Universidade Federal do Amazonas, Itacoatiara, AM, Brazil
| | - Marcela Silva Lopes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alexandre Meneghello Fuentefria
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Saulo Fernandes de Andrade
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.,Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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7
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Pippi B, Joaquim A, Lopes W, Machado G, Bergamo V, Giuliani L, Abegg M, Cruz L, Vainstein M, Fuentefria A, Andrade S. 8‐Hydroxyquinoline‐5‐sulfonamides are promising antifungal candidates for the topical treatment of dermatomycosis. J Appl Microbiol 2019; 128:1038-1049. [DOI: 10.1111/jam.14545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 11/08/2019] [Accepted: 11/30/2019] [Indexed: 12/15/2022]
Affiliation(s)
- B. Pippi
- Programa de Pós‐Graduação em Microbiologia Agrícola e do Ambiente Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - A.R. Joaquim
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - W. Lopes
- Centro de Biotecnologia Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - G.R.M. Machado
- Programa de Pós‐Graduação em Microbiologia Agrícola e do Ambiente Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - V.Z. Bergamo
- Programa de Pós‐Graduação em Microbiologia Agrícola e do Ambiente Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - L.M. Giuliani
- Programa de Pós‐graduação em Ciências Farmacêuticas Universidade Federal de Santa Maria Santa Maria RS Brazil
| | - M.A. Abegg
- Instituto de Ciências Exatas e Tecnologia Universidade Federal do Amazonas Itacoatiara AM Brazil
| | - L. Cruz
- Programa de Pós‐graduação em Ciências Farmacêuticas Universidade Federal de Santa Maria Santa Maria RS Brazil
| | - M.H. Vainstein
- Centro de Biotecnologia Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - A.M. Fuentefria
- Programa de Pós‐Graduação em Microbiologia Agrícola e do Ambiente Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - S.F. Andrade
- Programa de Pós‐Graduação em Microbiologia Agrícola e do Ambiente Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
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8
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Flores Dalla Lana D, Neiva Lavorato S, Minussi Giuliani L, Cruz L, Lopes W, Henning Vainstein M, Camargo Fontana I, Rigon Zimmer A, Araújo Freitas M, Andrade SF, José Alves R, Meneghello Fuentefria A. Discovery of a novel and selective fungicide that targets fungal cell wall to treat dermatomycoses: 1,3‐bis(3,4‐dichlorophenoxy)propan‐2‐aminium chloride. Mycoses 2019; 63:197-211. [DOI: 10.1111/myc.13027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/22/2019] [Accepted: 10/23/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Daiane Flores Dalla Lana
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Stefânia Neiva Lavorato
- Centro das Ciências Biológicas e da Saúde Universidade Federal do Oeste da Bahia Bahia Brazil
| | - Laura Minussi Giuliani
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal de Santa Maria Santa Maria Brazil
| | - Letícia Cruz
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal de Santa Maria Santa Maria Brazil
| | - William Lopes
- Centro de Biotecnologia Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | | | - Igor Camargo Fontana
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Aline Rigon Zimmer
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Murillo Araújo Freitas
- Centro das Ciências Biológicas e da Saúde Universidade Federal do Oeste da Bahia Bahia Brazil
| | - Saulo Fernandes Andrade
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
- Programa de Pós‐Graduação em Microbiologia Agrícola e do Ambiente Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Ricardo José Alves
- Departamento de Produtos Farmacêuticos Faculdade de Farmácia Universidade Federal de Minas Gerais Belo Horizonte Brazil
| | - Alexandre Meneghello Fuentefria
- Programa de Pós‐Graduação em Ciências Farmacêuticas Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
- Programa de Pós‐Graduação em Microbiologia Agrícola e do Ambiente Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
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9
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Krummenauer ME, Lopes W, Garcia AWA, Schrank A, Gnoatto SCB, Kawano DF, Vainstein MH. A Highly Active Triterpene Derivative Capable |of Biofilm Damage to Control Cryptococcus spp. Biomolecules 2019; 9:E831. [PMID: 31817559 PMCID: PMC6995603 DOI: 10.3390/biom9120831] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
Cryptococcus neoformans is an encapsulated yeast responsible for more than 180,000 deaths per year. The standard therapeutic approach against cryptococcosis is a combination of amphotericin B with flucytosine. In countries where cryptococcosis is most prevalent, 5-fluorocytosine is rarely available, and amphotericin B requires intravenous administration. C. neoformans biofilm formation is related to increased drug resistance, which is an important outcome for hospitalized patients. Here, we describe new molecules with anti-cryptococcal activity. A collection of 66 semisynthetic derivatives of ursolic acid and betulinic acid was tested against mature biofilms of C. neoformans at 25 µM. Out of these, eight derivatives including terpenes, benzazoles, flavonoids, and quinolines were able to cause damage and eradicate mature biofilms. Four terpene compounds demonstrated significative growth inhibition of C. neoformans. Our study identified a pentacyclic triterpenoid derived from betulinic acid (LAFIS13) as a potential drug for anti-cryptococcal treatment. This compound appears to be highly active with low toxicity at minimal inhibitory concentration and capable of biofilm eradication.
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Affiliation(s)
- Maria E. Krummenauer
- Centro de Biotecnologia, PPGBCM, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970, Brazil; (M.E.K.); (W.L.); (A.W.A.G.); (A.S.)
| | - William Lopes
- Centro de Biotecnologia, PPGBCM, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970, Brazil; (M.E.K.); (W.L.); (A.W.A.G.); (A.S.)
| | - Ane W. A. Garcia
- Centro de Biotecnologia, PPGBCM, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970, Brazil; (M.E.K.); (W.L.); (A.W.A.G.); (A.S.)
| | - Augusto Schrank
- Centro de Biotecnologia, PPGBCM, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970, Brazil; (M.E.K.); (W.L.); (A.W.A.G.); (A.S.)
| | - Simone C. B. Gnoatto
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 90610-000, Brazil;
| | - Daniel F. Kawano
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas, Campinas, São Paulo 13083-871, Brazil;
| | - Marilene H. Vainstein
- Centro de Biotecnologia, PPGBCM, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul 91501-970, Brazil; (M.E.K.); (W.L.); (A.W.A.G.); (A.S.)
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10
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Dalla Lana DF, Batista BG, da Rosa Machado G, Teixeira ML, de Oliveira LFS, Machado MM, de Andrade SF, Lopes W, Vainstein MH, de Abreu Lima AP, Pandolfi E, Silva EE, Fuentefria AM, Silveira GP. Design, synthesis, and evaluation of novel 2-substituted 1,4-benzenediol library as antimicrobial agents against clinically relevant pathogens. Saudi Pharm J 2019; 27:1064-1074. [PMID: 31885466 PMCID: PMC6921195 DOI: 10.1016/j.jsps.2019.09.003] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 09/22/2019] [Indexed: 12/27/2022] Open
Abstract
Development of new antimicrobial agents, capable of combating resistant and multidrug-resistant fungal and bacterial clinical strains, is necessary. This study presents the synthesis and antimicrobial screening of 42 2-substituted-1,4-benzenediols, being 10 novel compounds. In total, 23 compounds showed activity against fungi and/or bacteria. Benzenediol compounds 2, 5, 6, 8, 11, and 12 demonstrated broad spectrum antimicrobial actions, including resistant and multidrug-resistant species of dermatophytes (Trichophyton mentagrophytes), Candida spp. and the ESKAPE panel of bacteria. Minimum inhibitory concentrations of these compounds for fungi and bacterial strains ranged from 25 to 50 µg/ml and 8-128 µg/ml, respectively. The antifungal mechanism of action is related to the fungal cell wall of dermatophytes and membrane disruption to dermatophytes and yeasts, in the presence of compound 8. Specific structural changes, such as widespread thinning along the hyphae and yeast lysis, were observed by scanning electron microscopy. The effects of compound 8 on cell viability are dose-dependent; however they did not cause genotoxicity and mutagenicity in human leukocyte cells nor haemolysis. Moreover, the compounds were identified as nonirritant by the ex-vivo Hen's egg test-chorioallantoic membrane (HET-CAM). The furan-1,4-benzenediol compound 5 showed in vivo efficacy to combat S. aureus infection using embryonated chicken eggs. Therefore, the compounds 8, and 5 are promising as hits for the development of new antimicrobial drugs with reduced toxicity.
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Affiliation(s)
- Daiane Flores Dalla Lana
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Bruna Gerardon Batista
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gabriella da Rosa Machado
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Mário Lettieri Teixeira
- Laboratory of Biochemistry and Toxicology, Instituto Federal de Santa Catarina, Concordia, SC, Brazil
| | - Luís Flávio Souza de Oliveira
- Center for Studies in Biochemistry, Immunology and Toxicology, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Michel Mansur Machado
- Center for Studies in Biochemistry, Immunology and Toxicology, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Saulo Fernandes de Andrade
- Department of Raw Materials Production, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - William Lopes
- Department of Molecular Biology and Biotechnology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marilene Henning Vainstein
- Department of Molecular Biology and Biotechnology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alejandro Peixoto de Abreu Lima
- Laboratorio de Síntesis Orgánica, Departamento de Química Orgánica, Facultad de Química, CP11800, Universidad de la República, Montevideo, Uruguay
| | - Enrique Pandolfi
- Laboratorio de Síntesis Orgánica, Departamento de Química Orgánica, Facultad de Química, CP11800, Universidad de la República, Montevideo, Uruguay
| | - Edilma Elayne Silva
- Department of Organic Chemistry, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alexandre Meneghello Fuentefria
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Gustavo Pozza Silveira
- Department of Organic Chemistry, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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11
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Machado GDRM, Fernandes de Andrade S, Pippi B, Bergamo VZ, Jacobus Berlitz S, Lopes W, Lavorato SN, Clemes Külkamp Guerreiro I, Vainstein MH, Teixeira ML, Alves RJ, Fuentefria AM. Chloroacetamide derivatives as a promising topical treatment for fungal skin infections. Mycologia 2019; 111:612-623. [PMID: 31204895 DOI: 10.1080/00275514.2019.1620550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The aim of this study was to evaluate the antifungal potential of 11 chloroacetamide derivatives and derivative incorporated into a film-forming system (FFS) as a potential alternative for the topical treatment of superficial and skin mycoses. The minimum inhibitory concentration (MIC) evaluation followed Clinical and Laboratory Standards Institute protocols M27-A3 (Candida) and M28-A2 (dermatophytes). Compounds 2, 3, and 4 were the most effective against Candida species (MIC range: 25-50 µg/mL) and dermatophytes (MIC range: 3.12-50 µg/mL). Compound 2 maintained its antifungal activity when incorporated in a FFS, with MIC values equivalent to the free compound. In addition, the compound does not act through complexation with ergosterol, suggesting that it may act on other targets of the fungal cell membrane. Chloroacetamide derivatives presented anti-Candida and anti-dermatophytic effectiveness. The FFS containing compound 2 has shown to be superior to traditional topical treatment of superficial and cutaneous fungal infections. It was found that these new chemical entities, with their applicability, are an excellent alternative to the topical treatment of fungal skin infections.
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Affiliation(s)
- Gabriella da Rosa Monte Machado
- a Programa de Pós Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
| | - Saulo Fernandes de Andrade
- a Programa de Pós Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil.,b Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul , 90640-000, Rua São Luís, 154 Porto Alegre , Brazil
| | - Bruna Pippi
- a Programa de Pós Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
| | - Vanessa Zafaneli Bergamo
- a Programa de Pós Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
| | - Simone Jacobus Berlitz
- b Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul , 90640-000, Rua São Luís, 154 Porto Alegre , Brazil
| | - William Lopes
- c Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
| | - Stefânia Neiva Lavorato
- d Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais , Belo Horizonte , Minas Gerais , Brazil
| | - Irene Clemes Külkamp Guerreiro
- b Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul , 90640-000, Rua São Luís, 154 Porto Alegre , Brazil
| | | | - Mário Lettieri Teixeira
- e Laboratório de Farmacologia, Instituto Federal Catarinense, Campus Concórdia , Concórdia , Brazil
| | - Ricardo José Alves
- d Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais , Belo Horizonte , Minas Gerais , Brazil
| | - Alexandre Meneghello Fuentefria
- a Programa de Pós Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil.,b Programa de Pós Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul , 90640-000, Rua São Luís, 154 Porto Alegre , Brazil
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12
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Dalla Lana DF, Carvalho ÂR, Lopes W, Vainstein MH, Guimarães LSP, Teixeira ML, de Oliveira LFS, Machado MM, de Andrade SF, Sá MM, Russo TVC, Silveira GP, Fuentefria AM. Structure-based design of δ-lactones for new antifungal drug development: susceptibility, mechanism of action, and toxicity. Folia Microbiol (Praha) 2019; 64:509-519. [PMID: 30734157 DOI: 10.1007/s12223-018-00675-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 12/26/2018] [Indexed: 01/26/2023]
Abstract
Dermatophytes are the etiological agents of cutaneous mycoses, including the prevalent nail infections and athlete's foot. Candida spp. are opportunistic and emerging pathogens, causing superficial to deeper infections related to high mortality rates. As a consequence of prolonged application of antifungal drugs, the treatment failures combined with multidrug-resistance have become a serious problem in clinical practice. Therefore, novel alternative antifungals are required urgently. δ-Lactones have attracted great interest owing to their wide range of biological activity. This article describes the antifungal activity of synthetic δ-lactones against yeasts of the genus Candida spp. and dermatophytes (through the broth microdilution method), discusses the pathways by which the compounds exert this action (toward the fungal cell wall and/or membrane), and evaluates the toxicity to human leukocytes and chorioallantoic membrane (by the hen's egg test-chorioallantoic membrane). Two of the compounds in the series presented broader spectrum of antifungal activity, including against resistant fungal species. The mechanism of action was related to damage in the fungal cell wall and membrane, with specific target action dependent on the type of substituent present in the δ-lactone structure. The damage in the fungal cell was corroborated by electron microscopy images, which evidenced lysed and completely altered cells after in vitro treatment with δ-lactones. Toxicity was dose dependent for the viability of human leukocytes, but none of the compounds was mutagenic, genotoxic, or membrane irritant when evaluated at higher concentrations than MIC. In this way, δ-lactones constitute a class with excellent perspectives regarding their potential applications as antifungals.
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Affiliation(s)
- Daiane F Dalla Lana
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Ânderson R Carvalho
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - William Lopes
- Department of Molecular Biology and Biotechnology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marilene H Vainstein
- Department of Molecular Biology and Biotechnology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Luciano S P Guimarães
- Biostatistics Unit, Research Group and Post-graduation, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil
| | - Mário L Teixeira
- Laboratory of Biochemistry and Toxicology, Instituto Federal de Santa Catarina, Concordia, SC, Brazil
| | - Luis F S de Oliveira
- Center for Studies in Biochemistry, Immunology, and Toxicology, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Michel M Machado
- Center for Studies in Biochemistry, Immunology, and Toxicology, Universidade Federal do Pampa, Uruguaiana, RS, Brazil
| | - Saulo F de Andrade
- Department of Raw Materials Production, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Marcus M Sá
- Department of Chemistry, Universidade Federal de Santa Catarina, Florianopolis, SC, Brazil
| | - Theo V C Russo
- Department of Chemistry, Universidade Federal de Santa Catarina, Florianopolis, SC, Brazil
| | - Gustavo P Silveira
- Department of Organic Chemistry, Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Alexandre M Fuentefria
- Laboratory of Applied Mycology, Department of Analysis, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
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13
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Lopes W, Vainstein M, Schrank A. Revealing colonial characteristics of Candida tropicalis by high-resolution scanning electron microscopy. Clin Microbiol Infect 2019; 25:188-189. [DOI: 10.1016/j.cmi.2018.06.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 06/27/2018] [Indexed: 11/26/2022]
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14
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Pippi B, Lopes W, Reginatto P, Silva FÉK, Joaquim AR, Alves RJ, Silveira GP, Vainstein MH, Andrade SF, Fuentefria AM. New insights into the mechanism of antifungal action of 8-hydroxyquinolines. Saudi Pharm J 2019; 27:41-48. [PMID: 30662305 PMCID: PMC6323154 DOI: 10.1016/j.jsps.2018.07.017] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 07/19/2018] [Indexed: 11/20/2022] Open
Abstract
The 8-hydroxyquinoline core is a privileged scaffold for drug design explored to afford novel derivatives endowed with biological activity. Our research aimed at clarifying the antifungal mechanism of action of clioquinol, 8-hydroxy-5-quinolinesulfonic acid, and 8-hydroxy-7-iodo-5-quinolinesulfonic acid (three 8-hydroxyquinoline derivatives). The antifungal mode of action of these derivatives on Candida spp. and dermatophytes was investigated using sorbitol protection assay, cellular leakage effect, ergosterol binding assay, and scanning electron microscopy. Clioquinol damaged the cell wall and inhibited the formation of pseudohyphae by C. albicans. The 8-hydroxy-5-quinolinesulfonic acid derivatives compromised the functional integrity of cytoplasmic membranes. To date no similar report was found about the antifungal mechanism of 8-hydroxyquinolines. These results, combined with the broad antifungal spectrum already demonstrated previously, reinforce the potential of 8-hydroxyquinolines for the development of new drugs.
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Affiliation(s)
- Bruna Pippi
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - William Lopes
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Paula Reginatto
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Angélica Rocha Joaquim
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ricardo José Alves
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gustavo Pozza Silveira
- Departamento de Química Orgânica, Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Saulo Fernandes Andrade
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Alexandre Meneghello Fuentefria
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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15
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Quatrin PM, Dalla Lana DF, Bazana LCG, de Oliveira LFS, Lettieri Teixeira M, Silva EE, Lopes W, Canto RFS, Silveira GP, Fuentefria AM. 3-Selenocyanate-indoles as new agents for the treatment of superficial and mucocutaneous infections. NEW J CHEM 2019. [DOI: 10.1039/c8nj04935a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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
The development of resistance to the current antifungal agents is an alarming problem.
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Affiliation(s)
- Priscilla Maciel Quatrin
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente
- Universidade Federal do Rio Grande do Sul
- Porto Alegre
- Brazil
| | - Daiane Flores Dalla Lana
- Programa de Pós-Graduação em Ciências Farmacêuticas
- Universidade Federal do Rio Grande do Sul
- Porto Alegre
- Brazil
| | - Luana Candice Genz Bazana
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente
- Universidade Federal do Rio Grande do Sul
- Porto Alegre
- Brazil
| | | | | | - Edilma Elaine Silva
- Departamento de Química Orgânica
- Universidade Federal do Rio Grande do Sul
- Porto Alegre
- Brazil
| | - William Lopes
- Department of Molecular Biology and Biotechnology
- Universidade Federal do Rio Grande do Sul
- Porto Alegre
- Brazil
| | - Rômulo Faria Santos Canto
- Programa de Pós-Graduação em Ciências da Saúde
- Universidade Federal de Ciências da Saúde de Porto Alegre
- Porto Alegre
- Brazil
| | - Gustavo Pozza Silveira
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente
- Universidade Federal do Rio Grande do Sul
- Porto Alegre
- Brazil
- Departamento de Química Orgânica
| | - Alexandre Meneghello Fuentefria
- Programa de Pós-Graduação em Microbiologia Agrícola e do Ambiente
- Universidade Federal do Rio Grande do Sul
- Porto Alegre
- Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas
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16
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Dalla Lana DF, Giuliani LM, Reolon JB, Lopes W, Vainstein MH, Danielli LJ, Bergamo VZ, Pippi B, Apel MA, Teixeira ML, de Oliveira LFS, Machado MM, de Andrade SF, Sá MM, Ferreira M, Munaretto LS, Cruz L, Silveira GP, Elayne E, Fuentefria AM. Nanoemulsion Improves the Antifungal Activity of Allylic Thiocyanates against Yeasts and Filamentous Pathogenic Fungi. ChemistrySelect 2018. [DOI: 10.1002/slct.201802204] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daiane F. Dalla Lana
- Laboratory of Applied Mycology; Department of Analysis, Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Laura M. Giuliani
- Laboratory of Pharmaceutical Technology; Universidade Federal de Santa Maria, Santa Maria, RS; Brazil
| | - Jéssica B. Reolon
- Laboratory of Pharmaceutical Technology; Universidade Federal de Santa Maria, Santa Maria, RS; Brazil
| | - William Lopes
- Department of Molecular Biology and Biotechnology; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Marilene H. Vainstein
- Department of Molecular Biology and Biotechnology; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Letícia J. Danielli
- Department of Raw Materials Production; Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Vanessa Z. Bergamo
- Laboratory of Applied Mycology; Department of Analysis, Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Bruna Pippi
- Laboratory of Applied Mycology; Department of Analysis, Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Miriam A. Apel
- Department of Raw Materials Production; Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Mário L. Teixeira
- Laboratory of Biochemistry and Toxicology; Instituto Federal de Santa Catarina, Concordia, SC; Brazil
| | - Luis F. S. de Oliveira
- Center for Studies in Biochemistry; Immunology and Toxicology; Universidade Federal do Pampa, Uruguaiana, RS; Brazil
| | - Michel M. Machado
- Center for Studies in Biochemistry; Immunology and Toxicology; Universidade Federal do Pampa, Uruguaiana, RS; Brazil
| | - Saulo F. de Andrade
- Department of Raw Materials Production; Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Marcus M. Sá
- Department of Chemistry; Universidade Federal de Santa Catarina, Florianopolis, SC; Brazil
| | - Misael Ferreira
- Department of Chemistry; Universidade Federal de Santa Catarina, Florianopolis, SC; Brazil
| | - Laiéli S. Munaretto
- Department of Chemistry; Universidade Federal de Santa Catarina, Florianopolis, SC; Brazil
| | - Letícia Cruz
- Laboratory of Pharmaceutical Technology; Universidade Federal de Santa Maria, Santa Maria, RS; Brazil
| | - Gustavo P. Silveira
- Department of Organic Chemistry; Institute of Chemistry; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Edilma Elayne
- Department of Organic Chemistry; Institute of Chemistry; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
| | - Alexandre M. Fuentefria
- Laboratory of Applied Mycology; Department of Analysis, Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul, Porto Alegre, RS; Brazil
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17
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Danielli LJ, Pippi B, Duarte JA, Maciel AJ, Lopes W, Machado MM, Oliveira LFS, Vainstein MH, Teixeira ML, Bordignon SAL, Fuentefria AM, Apel MA. Antifungal mechanism of action of Schinus lentiscifolius Marchand essential oil and its synergistic effect in vitro with terbinafine and ciclopirox against dermatophytes. ACTA ACUST UNITED AC 2018; 70:1216-1227. [PMID: 29956331 DOI: 10.1111/jphp.12949] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 01/30/2018] [Accepted: 05/28/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate the antifungal, antichemotactic and antioxidant activities of Schinus lentiscifolius essential oil, as well as its combined effect with terbinafine and ciclopirox, against dermatophytes. METHODS Essential oil was analysed by GC-MS. The antifungal activity and the mechanism of action were determined by broth microdilution, sorbitol and ergosterol assays, as well as scanning electron microscopy. The checkerboard method was used for evaluating the interactions with commercial antifungal agents. The antioxidant and antichemotactic activities were measured using the DPPH and the modified Boyden chamber methods, respectively. KEY FINDINGS Chemical analysis revealed the presence of 33 compounds, the primary ones being γ-eudesmol (12.8%) and elemol (10.5%). The oil exhibited 97.4% of antichemotactic activity and 37.9% of antioxidant activity. Antifungal screening showed effect against dermatophytes with minimum inhibitory concentration values of 125 and 250 μg/ml. Regarding the mechanisms of action, the assays showed that the oil can act on the fungal cell wall and membrane. Synergistic interactions were observed using the combination with antifungals, primarily terbinafine. CONCLUSIONS Schinus lentiscifolius essential oil acted as a chemosensitizer of the fungal cell to the drug, resulting in an improvement in the antifungal effect. Therefore, this combination can be considered as an alternative for the topical treatment of dermatophytosis.
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Affiliation(s)
- Letícia J Danielli
- Pharmaceutical Sciences Graduate Program, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Bruna Pippi
- Agricultural and Environmental Microbiology Graduate Program, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Jonathaline A Duarte
- Pharmaceutical Sciences Graduate Program, Federal University of Pampa, Uruguaiana, Brazil
| | - Ana J Maciel
- Pharmaceutical Sciences Graduate Program, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - William Lopes
- Biotechnology Center, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Michel M Machado
- Pharmaceutical Sciences Graduate Program, Federal University of Pampa, Uruguaiana, Brazil
| | - Luis Flávio S Oliveira
- Pharmaceutical Sciences Graduate Program, Federal University of Pampa, Uruguaiana, Brazil
| | - Marilene H Vainstein
- Biotechnology Center, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Mário L Teixeira
- Laboratory of Biochemistry and Toxicology, Institute Federal of Santa Catarina, Concórdia, Brazil
| | - Sérgio A L Bordignon
- Environmental Impact Assessment Graduate Program, La Salle University Center, Canoas, Brazil
| | - Alexandre M Fuentefria
- Pharmaceutical Sciences Graduate Program, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Agricultural and Environmental Microbiology Graduate Program, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Miriam A Apel
- Pharmaceutical Sciences Graduate Program, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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18
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Lopes W, Vainstein MH, De Sousa Araujo GR, Frases S, Staats CC, de Almeida RMC, Schrank A, Kmetzsch L, Vainstein MH. Geometrical Distribution of Cryptococcus neoformans Mediates Flower-Like Biofilm Development. Front Microbiol 2017; 8:2534. [PMID: 29312225 PMCID: PMC5742216 DOI: 10.3389/fmicb.2017.02534] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 12/06/2017] [Indexed: 01/01/2023] Open
Abstract
Microbial biofilms are highly structured and dynamic communities in which phenotypic diversification allows microorganisms to adapt to different environments under distinct conditions. The environmentally ubiquitous pathogen Cryptococcus neoformans colonizes many niches of the human body and implanted medical devices in the form of biofilms, an important virulence factor. A new approach was used to characterize the underlying geometrical distribution of C. neoformans cells during the adhesion stage of biofilm formation. Geometrical aspects of adhered cells were calculated from the Delaunay triangulation and Voronoi diagram obtained from scanning electron microscopy images (SEM). A correlation between increased biofilm formation and higher ordering of the underlying cell distribution was found. Mature biofilm aggregates were analyzed by applying an adapted protocol developed for ultrastructure visualization of cryptococcal cells by SEM. Flower-like clusters consisting of cells embedded in a dense layer of extracellular matrix were observed as well as distinct levels of spatial organization: adhered cells, clusters of cells and community of clusters. The results add insights into yeast motility during the dispersion stage of biofilm formation. This study highlights the importance of cellular organization for biofilm growth and presents a novel application of the geometrical method of analysis.
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Affiliation(s)
- William Lopes
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Mendeli H Vainstein
- Departamento de Física, Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Physics of Living Systems, Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Glauber R De Sousa Araujo
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Susana Frases
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Charley C Staats
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Rita M C de Almeida
- Departamento de Física, Instituto de Física, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Instituto Nacional de Ciência e Tecnologia - Sistemas Complexos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Augusto Schrank
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Lívia Kmetzsch
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Marilene H Vainstein
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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19
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Batista BG, Lana DFD, Silveira GP, Sá MM, Ferreira M, Russo TVC, Canto RFS, Barbosa FAR, Braga AL, Kaminski TFA, de Oliveira LFS, Machado MM, Lopes W, Vainstein MH, Teixeira ML, Andrade SF, Fuentefria AM. Allylic Selenocyanates as New Agents to CombatFusariumSpecies Involved with Human Infections. ChemistrySelect 2017. [DOI: 10.1002/slct.201702338] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Bruna G. Batista
- Laboratório de Micologia Aplicada; Faculdade de Farmácia; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Daiane F. Dalla Lana
- Laboratório de Micologia Aplicada; Faculdade de Farmácia; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Gustavo P. Silveira
- Departamento de Química Orgânica; Instituto de Química; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Marcus M. Sá
- Departamento de Química; Universidade Federal de Santa Catarina; Florianópolis Brazil
| | - Misael Ferreira
- Departamento de Química; Universidade Federal de Santa Catarina; Florianópolis Brazil
| | - Theo V. C. Russo
- Departamento de Química; Universidade Federal de Santa Catarina; Florianópolis Brazil
| | - Rômulo F. S. Canto
- Departamento de Farmacociências; Universidade Federal de Ciências da Saúde de Porto Alegre; Porto Alegre Brazil
| | - Flavio A. R. Barbosa
- Departamento de Química; Universidade Federal de Santa Catarina; Florianópolis Brazil
| | - Antônio L. Braga
- Departamento de Química; Universidade Federal de Santa Catarina; Florianópolis Brazil
| | - Taís F. A. Kaminski
- Laboratório de Micologia Aplicada; Faculdade de Farmácia; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Grupo de Pesquisa em Toxicologia Celular; Universidade Federal do Pampa; Uruguaiana Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Luís F. S. de Oliveira
- Grupo de Pesquisa em Toxicologia Celular; Universidade Federal do Pampa; Uruguaiana Brazil
| | - Michel M. Machado
- Grupo de Pesquisa em Toxicologia Celular; Universidade Federal do Pampa; Uruguaiana Brazil
| | - William Lopes
- Departmento de Biologia Molecular e Biotecnologia; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Marilene H. Vainstein
- Departmento de Biologia Molecular e Biotecnologia; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Mário L. Teixeira
- Laboratório de Pesquisa em Toxicologia e Farmacologia; Instituto Federal de Santa Catarina; Concordia, SC Brazil
| | - Saulo F. Andrade
- Programa de Pós-Graduação em Ciências Farmacêuticas; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Alexandre M. Fuentefria
- Laboratório de Micologia Aplicada; Faculdade de Farmácia; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
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20
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21
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Squizani ED, Oliveira NK, Reuwsaat JCV, Marques BM, Lopes W, Gerber AL, de Vasconcelos ATR, Lev S, Djordjevic JT, Schrank A, Vainstein MH, Staats CC, Kmetzsch L. Cryptococcal dissemination to the central nervous system requires the vacuolar calcium transporter Pmc1. Cell Microbiol 2017; 20. [PMID: 29113016 DOI: 10.1111/cmi.12803] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 07/11/2017] [Revised: 10/27/2017] [Accepted: 10/30/2017] [Indexed: 12/26/2022]
Abstract
Cryptococcus neoformans is a basidiomycetous yeast and the cause of cryptococcosis in immunocompromised individuals. The most severe form of the disease is meningoencephalitis, which is one of the leading causes of death in HIV/AIDS patients. In order to access the central nervous system, C. neoformans relies on the activity of certain virulence factors such as urease, which allows transmigration through the blood-brain barrier. In this study, we demonstrate that the calcium transporter Pmc1 enables C. neoformans to penetrate the central nervous system, because the pmc1 null mutant failed to infect and to survive within the brain parenchyma in a murine systemic infection model. To investigate potential alterations in transmigration pathways in these mutants, global expression profiling of the pmc1 mutant strain was undertaken, and genes associated with urease, the Ca2+ -calcineurin pathway, and capsule assembly were identified as being differentially expressed. Also, a decrease in urease activity was observed in the calcium transporter null mutants. Finally, we demonstrate that the transcription factor Crz1 regulates urease activity and that the Ca2+ -calcineurin signalling pathway positively controls the transcription of calcium transporter genes and factors related to transmigration.
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Affiliation(s)
| | | | | | | | - William Lopes
- Centro de Biotecnologia, UFRGS, Porto Alegre, RS, Brazil
| | - Alexandra L Gerber
- Laboratório Nacional de Computação Científica (LNCC), Petrópolis, RJ, Brazil
| | | | - Sophie Lev
- Fungal Pathogenesis Laboratory, Centre for Infectious Diseases and Microbiology, The Westmead Institute for Medical Research, Westmead, NSW, Australia
| | - Julianne T Djordjevic
- Fungal Pathogenesis Laboratory, Centre for Infectious Diseases and Microbiology, The Westmead Institute for Medical Research, Westmead, NSW, Australia
| | | | | | | | - Lívia Kmetzsch
- Centro de Biotecnologia, UFRGS, Porto Alegre, RS, Brazil
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22
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Lando GA, Marconatto L, Kessler F, Lopes W, Schrank A, Vainstein MH, Weibel DE. UV-Surface Treatment of Fungal Resistant Polyether Polyurethane Film-Induced Growth of Entomopathogenic Fungi. Int J Mol Sci 2017; 18:E1536. [PMID: 28718785 PMCID: PMC5536024 DOI: 10.3390/ijms18071536] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Revised: 07/08/2017] [Accepted: 07/11/2017] [Indexed: 11/18/2022] Open
Abstract
Synthetic polymers are the cause of some major environmental impacts due to their low degradation rates. Polyurethanes (PU) are widely used synthetic polymers, and their growing use in industry has produced an increase in plastic waste. A commercial polyether-based thermoplastic PU with hydrolytic stability and fungus resistance was only attacked by an entomopathogenic fungus, Metarhiziumanisopliae, when the films were pre-treated with Ultraviolet (UV) irradiation in the presence of reactive atmospheres. Water contact angle, Fourier transform infrared spectroscopy in attenuated total reflection mode (FTIR-ATR), scanning electron microscopy (SEM), and profilometer measurements were mainly used for analysis. Permanent hydrophilic PU films were produced by the UV-assisted treatments. Pristine polyether PU films incubated for 10, 30, and 60 days did not show any indication of fungal growth. On the contrary, when using oxygen in the UV pre-treatment a layer of fungi spores covered the sample, indicating a great adherence of the microorganisms to the polymer. However, if acrylic acid vapors were used during the UV pre-treatment, a visible attack by the entomopathogenic fungi was observed. SEM and FTIR-ATR data showed clear evidence of fungal development: growth and ramifications of hyphae on the polymer surface with the increase in UV pre-treatment time and fungus incubation time. The results indicated that the simple UV surface activation process has proven to be a promising alternative for polyether PU waste management.
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Affiliation(s)
- Gabriela Albara Lando
- Laboratory of Photochemistry and Surfaces, Institute of Chemistry, Universidade Federal de Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, CEP 91501-970 Porto Alegre, RS, Brazil.
| | - Letícia Marconatto
- Laboratory of Geobiology, Institute of Petroleum and Natural Resources, Pontifical Catholic University Rio Grande do Sul (IPR-PUCRS), Av. Ipiranga, 6681, CEP 90619-900 Porto Alegre, RS, Brazil.
| | - Felipe Kessler
- Laboratory of Applied and Technological Physical Chemistry, Escola de Química e Alimentos, Universidade Federal do Rio Grande (FURG), Av. Itália, Km 08, CEP 96201-900 Rio Grande, RS, Brazil.
| | - William Lopes
- Laboratório de Fungos de Importância Médica e Biotecnológica, Departamento de Biologia Molecular e Biotecnologia, Centro de Biotecnologia, UFRGS, Av. Bento Gonçalves, 9500, CEP 91501-970 Porto Alegre, RS, Brazil.
| | - Augusto Schrank
- Laboratório de Fungos de Importância Médica e Biotecnológica, Departamento de Biologia Molecular e Biotecnologia, Centro de Biotecnologia, UFRGS, Av. Bento Gonçalves, 9500, CEP 91501-970 Porto Alegre, RS, Brazil.
| | - Marilene Henning Vainstein
- Laboratório de Fungos de Importância Médica e Biotecnológica, Departamento de Biologia Molecular e Biotecnologia, Centro de Biotecnologia, UFRGS, Av. Bento Gonçalves, 9500, CEP 91501-970 Porto Alegre, RS, Brazil.
| | - Daniel Eduardo Weibel
- Laboratory of Photochemistry and Surfaces, Institute of Chemistry, Universidade Federal de Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, CEP 91501-970 Porto Alegre, RS, Brazil.
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23
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Joffe LS, Schneider R, Lopes W, Azevedo R, Staats CC, Kmetzsch L, Schrank A, Del Poeta M, Vainstein MH, Rodrigues ML. The Anti-helminthic Compound Mebendazole Has Multiple Antifungal Effects against Cryptococcus neoformans. Front Microbiol 2017; 8:535. [PMID: 28400768 PMCID: PMC5368277 DOI: 10.3389/fmicb.2017.00535] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Accepted: 03/14/2017] [Indexed: 11/24/2022] Open
Abstract
Cryptococcus neoformans is the most lethal pathogen of the central nervous system. The gold standard treatment of cryptococcosis, a combination of amphotericin B with 5-fluorocytosine, involves broad toxicity, high costs, low efficacy, and limited worldwide availability. Although the need for new antifungals is clear, drug research and development (R&D) is costly and time-consuming. Thus, drug repurposing is an alternative to R&D and to the currently available tools for treating fungal diseases. Here we screened a collection of compounds approved for use in humans seeking for those with anti-cryptococcal activity. We found that benzimidazoles consist of a broad class of chemicals inhibiting C. neoformans growth. Mebendazole and fenbendazole were the most efficient antifungals showing in vitro fungicidal activity. Since previous studies showed that mebendazole reaches the brain in biologically active concentrations, this compound was selected for further studies. Mebendazole showed antifungal activity against phagocytized C. neoformans, affected cryptococcal biofilms profoundly and caused marked morphological alterations in C. neoformans, including reduction of capsular dimensions. Amphotericin B and mebendazole had additive anti-cryptococcal effects. Mebendazole was also active against the C. neoformans sibling species, C. gattii. To further characterize the effects of the drug a random C. gattii mutant library was screened and indicated that the antifungal activity of mebendazole requires previously unknown cryptococcal targets. Our results indicate that mebendazole is as a promising prototype for the future development of anti-cryptococcal drugs.
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Affiliation(s)
- Luna S Joffe
- Laboratório de Biologia Celular de Leveduras Patogênicas, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro Rio de Janeiro, Brazil
| | - Rafael Schneider
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul Porto Alegre, Brazil
| | - William Lopes
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul Porto Alegre, Brazil
| | - Renata Azevedo
- Fundação Oswaldo Cruz - Fiocruz, Centro de Desenvolvimento Tecnológico em Saúde Rio de Janeiro, Brazil
| | - Charley C Staats
- Centro de Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil
| | - Lívia Kmetzsch
- Centro de Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil
| | - Augusto Schrank
- Centro de Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil
| | - Maurizio Del Poeta
- Veterans Administration Medical Center, NorthportNY, USA; Department of Molecular Genetics and Microbiology, Stony Brook University, Stony BrookNY, USA
| | - Marilene H Vainstein
- Centro de Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil; Departamento de Biologia Molecular e Biotecnologia, Universidade Federal do Rio Grande do SulPorto Alegre, Brazil
| | - Marcio L Rodrigues
- Laboratório de Biologia Celular de Leveduras Patogênicas, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de JaneiroRio de Janeiro, Brazil; Fundação Oswaldo Cruz - Fiocruz, Centro de Desenvolvimento Tecnológico em SaúdeRio de Janeiro, Brazil
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24
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Bergamo VZ, Donato RK, Nemitz MC, Acasigua GAX, Selukar BS, Lopes W, Dalla Lana DF, Teixeira ML, Teixeira HF, Schrekker HS, Fuentefria AM. Assessing an imidazolium salt's performance as antifungal agent on a mouthwash formulation. J Appl Microbiol 2016; 121:1558-1567. [PMID: 27569114 DOI: 10.1111/jam.13283] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 06/14/2016] [Revised: 08/25/2016] [Accepted: 08/26/2016] [Indexed: 11/30/2022]
Abstract
AIMS This study demonstrates the development of a mouthwash formulation containing the imidazolium salt (IMS) 1-n-hexadecyl-3-methylimidazolium chloride (C16 MImCl), considering its stability and efficacy against Candida sp. Biofilm formation. METHODS AND RESULTS A variety of in vitro test methods were applied, assessing contaminated acrylic resin strip specimens before and after applying the mouthwash formulations. The formulation using C16 MImCl presented a similar antibiofilm activity to cetylpyridinium chloride one and a commercial mouthwash, but at a 10 times lower concentration. Scanning electron microscopy imaging demonstrated that the selected mouthwash preparation fully destroys the biofilm cells, while with the hypoallergenicity test no irritant effect was observed in ex vivo model. CONCLUSIONS The results presented herein indicate a high potential for imidazolium salts application as mouthwash agents that can eliminate Candida biofilm growth at very low concentrations. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrates a new and effective antibiofilm formulation containing the IMS C16 MImCl. These findings suggest the IMS' use as mouthwash formulations active ingredient against Candida biofilms on oral surfaces, as it outperforms the often used cetylpyridinium chloride at a 10 times lower concentration.
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Affiliation(s)
- V Z Bergamo
- Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Applied Mycology, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - R K Donato
- MackGraphe (Graphene and Nano-Material Research Center), Mackenzie Presbyterian University, São Paulo, Brazil.,Laboratory of Technological Processes and Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - M C Nemitz
- Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - G A X Acasigua
- Graduate Program in Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - B S Selukar
- Laboratory of Technological Processes and Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - W Lopes
- Department of Molecular Biology and Biotechnology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - D F Dalla Lana
- Laboratory of Applied Mycology, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Graduate Program in Pharmaceutical Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - M L Teixeira
- Veterinary Medicine Course, Federal Institute of Santa Catarina, Florianópolis, Brazil
| | - H F Teixeira
- Graduate Program in Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - H S Schrekker
- Laboratory of Technological Processes and Catalysis, Institute of Chemistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - A M Fuentefria
- Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Laboratory of Applied Mycology, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.,Graduate Program in Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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25
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Schrekker CML, Sokolovicz YCA, Raucci MG, Selukar BS, Klitzke JS, Lopes W, Leal CAM, de Souza IOP, Galland GB, Dos Santos JHZ, Mauler RS, Kol M, Dagorne S, Ambrosio L, Teixeira ML, Morais J, Landers R, Fuentefria AM, Schrekker HS. Multitask Imidazolium Salt Additives for Innovative Poly(l-lactide) Biomaterials: Morphology Control, Candida spp. Biofilm Inhibition, Human Mesenchymal Stem Cell Biocompatibility, and Skin Tolerance. ACS Appl Mater Interfaces 2016; 8:21163-21176. [PMID: 27486827 DOI: 10.1021/acsami.6b06005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Candida species have great ability to colonize and form biofilms on medical devices, causing infections in human hosts. In this study, poly(l-lactide) films with different imidazolium salt (1-n-hexadecyl-3-methylimidazolium chloride (C16MImCl) and 1-n-hexadecyl-3-methylimidazolium methanesulfonate (C16MImMeS)) contents were prepared, using the solvent casting process. Poly(l-lactide)-imidazolium salt films were obtained with different surface morphologies (spherical and directional), and the presence of the imidazolium salt in the surface was confirmed. These films with different concentrations of the imidazolium salts C16MImCl and C16MImMeS presented antibiofilm activity against isolates of Candida tropicalis, Candida parapsilosis, and Candida albicans. The minor antibiofilm concentration assay enabled one to determine that an increasing imidazolium salt content promoted, in general, an increase in the inhibition percentage of biofilm formation. Scanning electron microscopy micrographs confirmed the effective prevention of biofilm formation on the imidazolium salt containing biomaterials. Lower concentrations of the imidazolium salts showed no cytotoxicity, and the poly(l-lactide)-imidazolium salt films presented good cell adhesion and proliferation percentages with human mesenchymal stem cells. Furthermore, no acute microscopic lesions were identified in the histopathological evaluation after contact between the films and pig ear skin. In combination with the good morphological, physicochemical, and mechanical properties, these poly(l-lactide)-based materials with imidazolium salt additives can be considered as promising biomaterials for use in the manufacturing of medical devices.
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Affiliation(s)
| | | | - Maria G Raucci
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy , Naples, Italy
| | | | | | | | | | | | | | | | | | - Moshe Kol
- School of Chemistry, Tel Aviv University , Tel Aviv, Israel
| | - Samuel Dagorne
- Laboratoire DECOMET, Institut de Chimie de Strasbourg, CNRS-Université de Strasbourg , Strasbourg, France
| | | | - Mário L Teixeira
- Laboratory of Biochemistry and Toxicology, Instituto Federal Catarinense , Concórdia, SC, Brazil
| | | | - Richard Landers
- Institute of Physics "Gleb Wataghin", Universidade Estadual de Campinas-UNICAMP , Campinas, SP, Brazil
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