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Xisto MIDDS, Rollin-Pinheiro R, Rochetti VP, de Castro-Almeida Y, Borba-Santos LP, dos Santos-Freitas GMP, Cypriano J, Abreu FDÁ, Rozental S, Barreto-Bergter E. Miltefosine: A Repurposing Drug against Mucorales Pathogens. J Fungi (Basel) 2023; 9:1166. [PMID: 38132767 PMCID: PMC10744482 DOI: 10.3390/jof9121166] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/27/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023] Open
Abstract
Mucorales are a group of non-septated filamentous fungi widely distributed in nature, frequently associated with human infections, and are intrinsically resistant to many antifungal drugs. For these reasons, there is an urgent need to improve the clinical management of mucormycosis. Miltefosine, which is a phospholipid analogue of alkylphosphocholine, has been considered a promising repurposing drug to be used to treat fungal infections. In the present study, miltefosine displayed antifungal activity against a variety of Mucorales species, and it was also active against biofilms formed by these fungi. Treatment with miltefosine revealed modifications of cell wall components, neutral lipids, mitochondrial membrane potential, cell morphology, and the induction of oxidative stress. Treated Mucorales cells also presented an increased susceptibility to SDS. Purified ergosterol and glucosylceramide added to the culture medium increased miltefosine MIC, suggesting its interaction with fungal lipids. These data contribute to elucidating the effect of a promising drug repurposed to act against some relevant fungal pathogens that significantly impact public health.
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Affiliation(s)
- Mariana Ingrid Dutra da Silva Xisto
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (V.P.R.); (Y.d.C.-A.); (G.M.P.d.S.-F.)
| | - Rodrigo Rollin-Pinheiro
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (V.P.R.); (Y.d.C.-A.); (G.M.P.d.S.-F.)
| | - Victor Pereira Rochetti
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (V.P.R.); (Y.d.C.-A.); (G.M.P.d.S.-F.)
| | - Yuri de Castro-Almeida
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (V.P.R.); (Y.d.C.-A.); (G.M.P.d.S.-F.)
| | - Luana Pereira Borba-Santos
- Laboratório de Biologia Celular de Fungos, Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.P.B.-S.); (S.R.)
| | - Giulia Maria Pires dos Santos-Freitas
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (V.P.R.); (Y.d.C.-A.); (G.M.P.d.S.-F.)
| | - Jefferson Cypriano
- Laboratório de Biologia Celular e Magnetotaxia & Unidade de Microscopia Multiusuário, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (J.C.); (F.d.Á.A.)
| | - Fernanda de Ávila Abreu
- Laboratório de Biologia Celular e Magnetotaxia & Unidade de Microscopia Multiusuário, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (J.C.); (F.d.Á.A.)
| | - Sonia Rozental
- Laboratório de Biologia Celular de Fungos, Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.P.B.-S.); (S.R.)
| | - Eliana Barreto-Bergter
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (V.P.R.); (Y.d.C.-A.); (G.M.P.d.S.-F.)
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Rollin-Pinheiro R, de Moraes DC, Bayona-Pacheco B, Curvelo JADR, dos Santos-Freitas GMP, Xisto MIDDS, Borba-Santos LP, Rozental S, Ferreira-Pereira A, Barreto-Bergter E. Structural and Functional Alterations Caused by Aureobasidin A in Clinical Resistant Strains of Candida spp. J Fungi (Basel) 2023; 9:1115. [PMID: 37998920 PMCID: PMC10672136 DOI: 10.3390/jof9111115] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023] Open
Abstract
Candida species are one of the most concerning causative agents of fungal infections in humans. The treatment of invasive Candida infections is based on the use of fluconazole, but the emergence of resistant isolates has been an increasing concern which has led to the study of alternative drugs with antifungal activity. Sphingolipids have been considered a promising target due to their roles in fungal growth and virulence. Inhibitors of the sphingolipid biosynthetic pathway have been described to display antifungal properties, such as myriocin and aureobasidin A, which are active against resistant Candida isolates. In the present study, aureobasidin A did not display antibiofilm activity nor synergism with amphotericin B, but its combination with fluconazole was effective against Candida biofilms and protected the host in an in vivo infection model. Alterations in treated cells revealed increased oxidative stress, reduced mitochondrial membrane potential and chitin content, as well as altered morphology, enhanced DNA leakage and a greater susceptibility to sodium dodecyl sulphate (SDS). In addition, it seems to inhibit the efflux pump CaCdr2p. All these data contribute to elucidating the role of aureobasidin A on fungal cells, especially evidencing its promising use in clinical resistant isolates of Candida species.
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Affiliation(s)
- Rodrigo Rollin-Pinheiro
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (G.M.P.d.S.-F.); (M.I.D.d.S.X.)
| | - Daniel Clemente de Moraes
- Laboratório de Bioquímica Microbiana, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (D.C.d.M.); (B.B.-P.); (J.A.d.R.C.); (A.F.-P.)
| | - Brayan Bayona-Pacheco
- Laboratório de Bioquímica Microbiana, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (D.C.d.M.); (B.B.-P.); (J.A.d.R.C.); (A.F.-P.)
- Departamento de Medicina, División Ciencias de la Salud, Universidad del Norte, Km 5, Vía Puerto Colombia, Área Metropolitana de Barranquilla, Barranquilla 081007, Colombia
| | - Jose Alexandre da Rocha Curvelo
- Laboratório de Bioquímica Microbiana, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (D.C.d.M.); (B.B.-P.); (J.A.d.R.C.); (A.F.-P.)
| | - Giulia Maria Pires dos Santos-Freitas
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (G.M.P.d.S.-F.); (M.I.D.d.S.X.)
| | - Mariana Ingrid Dutra da Silva Xisto
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (G.M.P.d.S.-F.); (M.I.D.d.S.X.)
| | - Luana Pereira Borba-Santos
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (L.P.B.-S.); (S.R.)
| | - Sonia Rozental
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (L.P.B.-S.); (S.R.)
| | - Antonio Ferreira-Pereira
- Laboratório de Bioquímica Microbiana, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (D.C.d.M.); (B.B.-P.); (J.A.d.R.C.); (A.F.-P.)
| | - Eliana Barreto-Bergter
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro 21941-902, Brazil; (G.M.P.d.S.-F.); (M.I.D.d.S.X.)
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Rollin-Pinheiro R, Xisto MIDDS, de Castro-Almeida Y, Rochetti VP, Borba-Santos LP, Fontes YDS, Ferreira-Pereira A, Rozental S, Barreto-Bergter E. Pandemic Response Box® library as a source of antifungal drugs against Scedosporium and Lomentospora species. PLoS One 2023; 18:e0280964. [PMID: 36735743 PMCID: PMC9897528 DOI: 10.1371/journal.pone.0280964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 01/12/2023] [Indexed: 02/04/2023] Open
Abstract
Scedosporium and Lomentospora species are opportunistic filamentous fungi that cause localized and disseminated infections in immunocompetent and immunocompromised patients. These species are considered resistant fungi due to their low susceptibility to most current antifungal agents used in healthcare settings. The search for new compounds that could work as promising candidate antifungal drugs is an increasing field of interest. In this context, in the present study we screened the Pandemic Response Box® library (Medicines for Malaria Venture [MMV], Switzerland) to identify compounds with antifungal activity against Scedosporium and Lomentospora species. An initial screening of the drugs from this collection at 5 μM was performed using a clinical Scedosporium aurantiacum isolate according to the EUCAST protocol. Compounds with activity against this fungus were also tested against four other species (S. boydii¸ S. dehoogii, S. apiospermum and L. prolificans) at concentrations ranging from 0.078 to 10 μM. Seven compounds inhibited more than 80% of S. aurantiacum growth, three of them (alexidine, amorolfine and olorofim) were selected due to their differences in mechanism of action, especially when compared to drugs from the azole class. These compounds were more active against biofilm formation than against preformed biofilm in Scedosporium and Lomentospora species, except alexidine, which was able to decrease preformed biofilm about 50%. Analysis of the potential synergism of these compounds with voriconazole and caspofungin was performed by the checkerboard method for S. aurantiacum. The analysis by Bliss methodology revealed synergistic effects among selected drugs with caspofungin. When these drugs were combined with voriconazole, only alexidine and amorolfine showed a synergistic effect, whereas olorofim showed an antagonistic effect. Scanning electron microscopy revealed that alexidine induces morphology alterations in S. aurantiacum biofilm grown on a catheter surface. Reactive oxygen species production, mitochondrial activity and surface components were analyzed by fluorescent probes when S. aurantiacum was treated with selected drugs and revealed that some cell parameters are altered by these compounds. In conclusion, alexidine, amorolfine and olorofim were identified as promising compounds to be studied against scedosporiosis and lomentosporiosis.
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Affiliation(s)
- Rodrigo Rollin-Pinheiro
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail: (RRP); (EBB)
| | - Mariana Ingrid Dutra da Silva Xisto
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yuri de Castro-Almeida
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Victor Pereira Rochetti
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luana Pereira Borba-Santos
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yasmin da Silva Fontes
- Laboratório de Bioquímica Microbiana, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Antonio Ferreira-Pereira
- Laboratório de Bioquímica Microbiana, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sonia Rozental
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliana Barreto-Bergter
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- * E-mail: (RRP); (EBB)
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Rollin-Pinheiro R, Borba-Santos LP, da Silva Xisto MID, de Castro-Almeida Y, Rochetti VP, Rozental S, Barreto-Bergter E. Identification of Promising Antifungal Drugs against Scedosporium and Lomentospora Species after Screening of Pathogen Box Library. J Fungi (Basel) 2021; 7:jof7100803. [PMID: 34682224 PMCID: PMC8539698 DOI: 10.3390/jof7100803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/28/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 12/20/2022] Open
Abstract
Fungal infections have been increasing during the last decades. Scedosporium and Lomentospora species are filamentous fungi most associated to those infections, especially in immunocompromised patients. Considering the limited options of treatment and the emergence of resistant isolates, an increasing concern motivates the development of new therapeutic alternatives. In this context, the present study screened the Pathogen Box library to identify compounds with antifungal activity against Scedosporium and Lomentospora. Using antifungal susceptibility tests, biofilm analysis, scanning electron microscopy (SEM), and synergism assay, auranofin and iodoquinol were found to present promising repurposing applications. Both compounds were active against different Scedosporium and Lomentospora, including planktonic cells and biofilm. SEM revealed morphological alterations and synergism analysis showed that both drugs present positive interactions with voriconazole, fluconazole, and caspofungin. These data suggest that auranofin and iodoquinol are promising compounds to be studied as repurposing approaches against scedosporiosis and lomentosporiosis.
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Affiliation(s)
- Rodrigo Rollin-Pinheiro
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (M.I.D.d.S.X.); (Y.d.C.-A.); (V.P.R.)
| | - Luana Pereira Borba-Santos
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.P.B.-S.); (S.R.)
| | - Mariana Ingrid Dutra da Silva Xisto
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (M.I.D.d.S.X.); (Y.d.C.-A.); (V.P.R.)
| | - Yuri de Castro-Almeida
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (M.I.D.d.S.X.); (Y.d.C.-A.); (V.P.R.)
| | - Victor Pereira Rochetti
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (M.I.D.d.S.X.); (Y.d.C.-A.); (V.P.R.)
| | - Sonia Rozental
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (L.P.B.-S.); (S.R.)
| | - Eliana Barreto-Bergter
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil; (R.R.-P.); (M.I.D.d.S.X.); (Y.d.C.-A.); (V.P.R.)
- Correspondence: ; Tel.: +55-(21)-3938-6741
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Rollin-Pinheiro R, Almeida YDC, Rochetti VP, Xisto MIDDS, Borba-Santos LP, Rozental S, Barreto-Bergter E. Miltefosine Against Scedosporium and Lomentospora Species: Antifungal Activity and Its Effects on Fungal Cells. Front Cell Infect Microbiol 2021; 11:698662. [PMID: 34368017 PMCID: PMC8343104 DOI: 10.3389/fcimb.2021.698662] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 04/21/2021] [Accepted: 07/05/2021] [Indexed: 01/03/2023] Open
Abstract
Scedosporium and Lomentospora species are filamentous fungi responsible for a wide range of infections in humans and are frequently associated with cystic fibrosis and immunocompromising conditions. Because they are usually resistant to many antifungal drugs available in clinical settings, studies of alternative targets in fungal cells and therapeutic approaches are necessary. In the present work, we evaluated the in vitro antifungal activity of miltefosine against Scedosporium and Lomentospora species and how this phospholipid analogue affects the fungal cell. Miltefosine inhibited different Scedosporium and Lomentospora species at 2–4 µg/ml and reduced biofilm formation. The loss of membrane integrity in Scedosporium aurantiacum caused by miltefosine was demonstrated by leakage of intracellular components and lipid raft disorganisation. The exogenous addition of glucosylceramide decreased the inhibitory activity of miltefosine. Reactive oxygen species production and mitochondrial activity were also affected by miltefosine, as well as the susceptibility to fluconazole, caspofungin and myoricin. The data obtained in the present study contribute to clarify the dynamics of the interaction between miltefosine and Scedosporium and Lomentospora cells, highlighting its potential use as new antifungal drug in the future.
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Affiliation(s)
- Rodrigo Rollin-Pinheiro
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Yuri de Castro Almeida
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Victor Pereira Rochetti
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariana Ingrid Dutra da Silva Xisto
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luana Pereira Borba-Santos
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Sonia Rozental
- Programa de Biologia Celular e Parasitologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliana Barreto-Bergter
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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de Oliveira EB, Xisto MIDDS, Rollin-Pinheiro R, Rochetti VP, Barreto-Bergter E. Peptidorhamnomannans From Scedosporium and Lomentospora Species Display Microbicidal Activity Against Bacteria Commonly Present in Cystic Fibrosis Patients. Front Cell Infect Microbiol 2020; 10:598823. [PMID: 33251161 PMCID: PMC7673444 DOI: 10.3389/fcimb.2020.598823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/25/2020] [Accepted: 10/07/2020] [Indexed: 11/13/2022] Open
Abstract
Scedosporium and Lomentospora species are filamentous fungi that cause a wide range of infections in humans. They are usually found in the lungs of cystic fibrosis (CF) patients and are the second most frequent fungal genus after Aspergillus species. Several studies have been recently performed in order to understand how fungi and bacteria interact in CF lungs, since both can be isolated simultaneously from patients. In this context, many bacterial molecules were shown to inhibit fungal growth, but little is known about how fungi could interfere in bacterial development in CF lungs. Scedosporium and Lomentospora species present peptidorhamnomannans (PRMs) in their cell wall that play crucial roles in fungal adhesion and interaction with host epithelial cells and the immune system. The present study aimed to analyze whether PRMs extracted from Lomentospora prolificans, Scedosporium apiospermum, Scedosporium boydii, and Scedosporium aurantiacum block bacterial growth and biofilm formation in vitro. PRM from L. prolificans and S. boydii displayed the best bactericidal effect against methicillin resistant Staphylococcus aureus (MRSA), Burkholderia cepacia, and Escherichia coli, but not Pseudomonas aeruginosa, all of which are the most frequently found bacteria in CF lungs. In addition, biofilm formation was inhibited in all bacteria tested using PRMs at minimal inhibitory concentration (MIC). These results suggest that PRMs from the Scedosporium and Lomentospora surface seem to play an important role in Scedosporium colonization in CF patients, helping to clarify how these pathogens interact to each other in CF lungs.
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Affiliation(s)
- Evely Bertulino de Oliveira
- Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Mariana Ingrid Dutra da Silva Xisto
- Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Rodrigo Rollin-Pinheiro
- Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Victor Pereira Rochetti
- Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
| | - Eliana Barreto-Bergter
- Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Departamento de Microbiologia Geral, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
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Rollin-Pinheiro R, Xisto MIDDS, Rochetti VP, Barreto-Bergter E. Scedosporium Cell Wall: From Carbohydrate-Containing Structures to Host-Pathogen Interactions. Mycopathologia 2020; 185:931-946. [PMID: 32990888 DOI: 10.1007/s11046-020-00480-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 04/16/2020] [Accepted: 07/20/2020] [Indexed: 12/16/2022]
Abstract
Scedosporium species are filamentous fungi usually found in sewage and soil from human-impacted areas. They cause a wide range of diseases in humans, from superficial infections, such as mycetoma, to invasive and disseminated cases, especially associated in immunocompromised patients. Scedosporium species are also related to lung colonization in individuals presenting cystic fibrosis and are considered one of the most frequent fungal pathogens associated to this pathology. Scedosporium cell wall contains glycosylated molecules involved in important biological events related to virulence and pathogenicity and represents a significant source of antigens. Polysaccharides, peptidopolysaccharides, O-linked oligosaccharides and glycosphingolipids have been identified on the Scedosporium surface. Their primary structures were determined based on a combination of techniques including gas chromatography, ESI-MS, and 1H and 13C nuclear magnetic resonance. Peptidorhamnnomannans are common cell wall components among Scedosporium species. Comparing different species, minor structural differences in the carbohydrate portions were detected which could be useful to understand variations in virulence observed among the species. N- and O-linked peptidorhamnomannans are major pathogen-associated molecular patterns and, along with α-glucans, play important roles in triggering host innate immunity. Glycosphingolipids, such as glucosylceramides, have highly conserved structures in Scedosporium species and are crucial for fungal growth and virulence. The present review presents current knowledge on structural and functional aspects of Scedosporium glycoconjugates that are relevant for understanding pathogenicity mechanisms and could contribute to the design of new agents capable of inhibiting growth and differentiation of Scedosporium species. Other cell components such as melanin and ectophosphatases will be also included.
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Affiliation(s)
- Rodrigo Rollin-Pinheiro
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Mariana Ingrid Dutra da Silva Xisto
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Victor Pereira Rochetti
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Eliana Barreto-Bergter
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil.
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8
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de Meirelles JV, Xisto MIDDS, Rollin-Pinheiro R, Serrato RV, Haido RMT, Barreto-Bergter E. Peptidorhamanomannan: A surface fungal glycoconjugate from Scedosporium aurantiacum and Scedosporium minutisporum and its recognition by macrophages. Med Mycol 2020; 59:441-452. [PMID: 32766889 DOI: 10.1093/mmy/myaa065] [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: 12/18/2019] [Revised: 06/29/2020] [Accepted: 08/04/2020] [Indexed: 02/06/2023] Open
Abstract
The genus Scedosporium is composed of clinically relevant fungal species, such as Scedosporium aurantiacum, Scedosporium apiospermum, and Scedosporium boydii. Surface molecules have been described that play crucial roles in fungi-macrophage interaction, and many of them are pathogen-associated molecular patterns (PAMPs). The present study aims to characterize peptidoglycans obtained from Scedosporium aurantiacum and Scedosporium minutisporum, a clinical and an environmental isolate, respectively, and compare their roles in pathogen-host interaction. Both molecules were characterized as peptidorhamnomannans (PRMs), similar to what has been already described for other Scedosporium species. Rabbit immune sera obtained by injecting whole cells from each species recognized both fungal cells and purified PRMs, suggesting that a cross-reaction occur between both fungi. Immunofluorescent microscopy revealed that PRMs are exposed on fungal surface. Prior incubation of purified molecules with immune sera before adding to cells led to loss of fluorescent, indicating that PRM is a major molecule recognized by immune sera. Fungi-macrophage interaction revealed that S. aurantiacum is able to survive more inside phagocytic cells than S. minutisporum, and PRM from both fungi plays a role in phagocytosis when the purified molecule is pre-incubated with macrophage. In addition, PRM induce nitric oxide release by macrophages. Our data indicate that PRM is an important PAMP exposed on fungal surface with the potential of immune modulation.
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Affiliation(s)
- Jardel Vieira de Meirelles
- Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro (UFRJ), Bloco I, Ilha do Fundão, 21941-970, Rio de Janeiro, RJ, Brazil
| | - Mariana Ingrid Dutra da Silva Xisto
- Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro (UFRJ), Bloco I, Ilha do Fundão, 21941-970, Rio de Janeiro, RJ, Brazil
| | - Rodrigo Rollin-Pinheiro
- Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro (UFRJ), Bloco I, Ilha do Fundão, 21941-970, Rio de Janeiro, RJ, Brazil
| | - Rodrigo Vassoler Serrato
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná (UFPR), 81531-980, Curitiba, PR, Brazil
| | - Rosa Maria Tavares Haido
- Instituto Biomédico, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), 20211-010, Rio de Janeiro, RJ, Brazil
| | - Eliana Barreto-Bergter
- Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro (UFRJ), Bloco I, Ilha do Fundão, 21941-970, Rio de Janeiro, RJ, Brazil
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9
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Xisto MIDDS, Santos SS, Rossato L, Yoshikawa FSY, Haido RMT, de Almeida SR, Barreto-Bergter E. Peptidorhamnomannan from Lomentospora prolificans modulates the inflammatory response in macrophages infected with Candida albicans. BMC Microbiol 2020; 20:245. [PMID: 32762645 PMCID: PMC7412847 DOI: 10.1186/s12866-020-01931-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/02/2019] [Accepted: 07/29/2020] [Indexed: 02/08/2023] Open
Abstract
Background Peptidorhamnomannan is a glycoconjugate that consists of a peptide chain substituted by O- and N-linked glycans, present on the cell surface of Lomentospora prolificans, a saprophytic fungus which is widely distributed in regions with temperate climates. O-linked oligosaccharides from peptidorhamnomannan isolated from Lomentospora prolificans conidia are recognized by macrophages mediating macrophage - conidia interaction. In this work, peptidorhamnomannan was isolated from L. prolificans mycelium cell wall and its role in macrophage - Candida albicans interaction was evaluated. Results Purified peptidorhamnomannan inhibits the reactivity of rabbit immune sera to mycelial and conidia forms of L. prolificans, indicating that this glycoconjugate is exposed on the fungal surface and can mediate interaction with host immune cells. We demonstrated that peptidorhamnomannan leads to TNF-α production in J774 macrophages for 1, 2 and 3 h of incubation, suggesting that this glycoconjugate may have a beneficial role in the response to fungal infections. In order to confirm this possibility, the effect of peptidorhamnomannan on the macrophage - C. albicans interaction was evaluated. Macrophages treated with peptidorhamnomannan led to a lower fungal survival, suggesting that peptidorhamnomannan induces an increased fungicidal activity in macrophages. Furthermore, TNF-α levels were measured in supernatants after macrophage - C. albicans interaction for 1, 2 and 3 h. Peptidorhamnomannan treatment led to a higher TNF-α production at the beginning of the interaction. However, the release of TNF-α was not maintained after 1 h of incubation. Besides, peptidorhamnomannan did not show any inhibitory or fungicidal effect in C. albicans when used at 100 μg/ml but it was able to kill C. albicans at a concentration of 400 μg/ml. Conclusion We suggest that peptidorhamnomannan acts as a molecular pattern on the invading pathogen, promotes TNF-α production and, thus, increases macrophage fungicidal activity against Candida albicans.
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Affiliation(s)
- Mariana Ingrid Dutra da Silva Xisto
- Departamento de Microbiologia Geral, Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro (UFRJ), Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Suelen S Santos
- Departamento de Análises Clinicas e Toxicológicas, Faculdade de Ciências Farmacêuticas -USP, São Paulo, Brazil
| | - Luana Rossato
- Departamento de Análises Clinicas e Toxicológicas, Faculdade de Ciências Farmacêuticas -USP, São Paulo, Brazil
| | | | - Rosa Maria Tavares Haido
- Departamento de Microbiologia e Parasitologia, Instituto Biomédico, UNIRIO, Rio de Janeiro, RJ, Brazil
| | - Sandro Rogério de Almeida
- Departamento de Análises Clinicas e Toxicológicas, Faculdade de Ciências Farmacêuticas -USP, São Paulo, Brazil
| | - Eliana Barreto-Bergter
- Departamento de Microbiologia Geral, Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro (UFRJ), Ilha do Fundão, Rio de Janeiro, RJ, 21941-902, Brazil.
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10
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Xisto MIDDS, Henao JEM, Dias LDS, Santos GMP, Calixto RDOR, Bernardino MC, Taborda CP, Barreto-Bergter E. Glucosylceramides From Lomentospora prolificans Induce a Differential Production of Cytokines and Increases the Microbicidal Activity of Macrophages. Front Microbiol 2019; 10:554. [PMID: 30967849 PMCID: PMC6440385 DOI: 10.3389/fmicb.2019.00554] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 11/06/2018] [Accepted: 03/04/2019] [Indexed: 11/16/2022] Open
Abstract
Lomentospora prolificans is an emerging opportunistic fungus with a high resistance to antifungal agents and it can cause localized infections in immunocompetent patients and disseminated infections with a high mortality rate in immunosuppressed patients. Glucosylceramides (GlcCer) are synthetized in the majority of known fungal pathogens. They are bioactive molecules presenting different functions, such as involvement in fungal growth and morphological transitions in several fungi. The elucidation of the primary structure of the fungal surface glycoconjugates could contribute for the understanding of the mechanisms of pathogenicity. In this work, GlcCer species were isolated from mycelium and conidia forms of L. prolificans and their chemical structures were elucidated by mass spectrometry (ESI-MS). GlcCer purified from both forms presented a major species at m/z 750 that corresponds to N-2-hydroxyhexadecanoyl-1-β-D-glucopyranosyl-9-methyl-4,8-sphingadienine. Monoclonal antibodies against GlcCer could recognize L. prolificans GlcCer species from mycelium and conidia, suggesting a conserved epitope in fungal GlcCer. In addition, in vivo assays showed that purified GlcCer species from both forms was able to induce a high secretion of pro-inflammatory cytokines by splenocytes. GlcCer species also promote the recruitment of polymorphonuclear, eosinophils, small peritoneal macrophage (SPM) and mononuclear cells to the peritoneal cavity. GlcCer species were also able to induce the oxidative burst by peritoneal macrophages with NO and superoxide radicals production, and to increase the killing of L. prolificans conidia by peritoneal macrophages. These results indicate that GlcCer species from L. prolificans are a potent immune response activator.
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Affiliation(s)
- Mariana Ingrid Dutra da Silva Xisto
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Julián Esteban Muñoz Henao
- Studies in Translational Microbiology and Emerging Diseases Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Lucas Dos Santos Dias
- Institute of Biomedical Sciences, Department of Microbiology, Medical Mycology Laboratory, Medical School and Tropical Medicine Institute, University of São Paulo, São Paulo, Brazil.,Department of Pediatric, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, United States
| | - Giulia Maria Pires Santos
- Instituto Biomédico, Departamento de Microbiologia e Parasitologia, Universidade Federal Fluminense, Niterói, Brazil
| | - Renata de Oliveira Rocha Calixto
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariana Collodetti Bernardino
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos Pelleschi Taborda
- Institute of Biomedical Sciences, Department of Microbiology, Medical Mycology Laboratory, Medical School and Tropical Medicine Institute, University of São Paulo, São Paulo, Brazil
| | - Eliana Barreto-Bergter
- Laboratório de Química Biológica de Microrganismos, Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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11
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Vieira ER, Xisto MIDDS, Pele MA, Alviano DS, Alviano CS, Barreto-Bergter E, de Campos-Takaki GM. Monohexosylceramides from Rhizopus Species Isolated from Brazilian Caatinga: Chemical Characterization and Evaluation of Their Anti-Biofilm and Antibacterial Activities. Molecules 2018; 23:molecules23061331. [PMID: 29865153 PMCID: PMC6100016 DOI: 10.3390/molecules23061331] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 04/10/2018] [Revised: 05/24/2018] [Accepted: 05/26/2018] [Indexed: 11/16/2022] Open
Abstract
Monohexosylceramides (CMHs) are highly conserved fungal glycosphingolipids playing a role in several cellular processes such as growth, differentiation and morphological transition. In this study, we report the isolation, purification and chemical characterization of CMHs from Rhizopus stolonifer and R. microspores. Using positive ion mode ESI-MS, two major ion species were observed at m/z 750 and m/z 766, respectively. Both ion species consisted of a glucose/galactose residue attached to a ceramide moiety containing 9-methyl-4,8-sphingadienine with an amidic linkage to a hydroxylated C16:0 fatty acid. The antimicrobial activity of CMH was evaluated against Gram positive and Gram negative bacteria using the agar diffusion assay. CMH from both Rhizopus species inhibited the growth of Bacillus terrae, Micrococcus luteus (M. luteus) and Pseudomonas stutzeri (P. stutzeri) with a MIC50 of 6.25, 6.25 and 3.13 mg/mL, respectively. The bactericidal effect was detected only for M. luteus and P. stutzeri, with MBC values of 25 and 6.25 mg/mL, respectively. Furthermore, the action of CMH on the biofilm produced by methicillin-resistant Staphylococcus aureus (MRSA) was analyzed using 12.5 and 25 mg/mL of CMH from R. microsporus. Total biofilm biomass, biofilm matrix and viability of the cells that form the biofilm structure were evaluated. CMH from R. microsporus was able to inhibit the MRSA biofilm formation in all parameters tested.
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Affiliation(s)
- Edson Rodrigues Vieira
- Núcleo de Pesquisa em Ciências Ambientais e Biotecnologia, Universidade Católica de Pernambuco, Recife 50050-590, PE, Brazil.
| | - Mariana Ingrid Dutra da Silva Xisto
- Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil.
| | - Milagre Américo Pele
- Núcleo de Pesquisa em Ciências Ambientais e Biotecnologia, Universidade Católica de Pernambuco, Recife 50050-590, PE, Brazil.
| | - Daniela Sales Alviano
- Laboratório de Estrutura de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil.
| | - Celuta Sales Alviano
- Laboratório de Estrutura de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil.
| | - Eliana Barreto-Bergter
- Laboratório de Química Biológica de Microrganismos, Instituto de Microbiologia Paulo de Góes, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Ilha do Fundão, Rio de Janeiro 21941-902, RJ, Brazil.
| | - Galba Maria de Campos-Takaki
- Núcleo de Pesquisa em Ciências Ambientais e Biotecnologia, Universidade Católica de Pernambuco, Recife 50050-590, PE, Brazil.
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