Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms
- Autores
- Quinteros, Melisa de Los Ángeles; Galera, Ivana Laura Delia; Tolosa, Juan Martín; García Martínez, Joaquín Calixto; Páez, Paulina Laura; Paraje, María Gabriela
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- As sessile cells of fungal biofilms are at least 500-fold more resistant to antifungal drugs than their planktonic counterparts, there is a requirement for new antifungal agents. Olygostyrylbenzenes (OSBs) are the first generation of poly(phenylene) vinylene dendrimers with a gram-positive antibacterial activity. Thus, this study aimed to investigate the antifungal activity of four OSBs (1, 2, 3, and 4) on planktonic cells and biofilms of Candida tropicalis. The minimum inhibitory concentration (MIC) for the planktonic population and the sessileminimum inhibitory concentrations (SMIC) were determined. Biofilm eradication was studied by crystal violet stain and light microscopy (LM), and confocal laser scanning microscopy (CLSM) was also utilized in conjunction with the image analysis software COMSTAT. Although all the OSBs studied had antifungalactivity, the cationic OSBs weremore effective than the anionic ones. A significant reduction of biofilms was observed at MIC and supraMIC50 (50 times higher than MIC) for compound 2, and at supraMIC50 with compound 3. Alterations in surface topography and the three-dimensional architecture of the biofilms were evident with LM and CLSM. The LM analysis revealed that the C. tropicalis strain produced a striking biofilmwith oval blastospores, pseudohyphae, and true hyphae. CLSM images showed that a decrease occurred in the thickness of the mature biofilms treated with the OSBs at the most effective concentration for each one. The results obtained by microscopy were supported by those of the COMSTAT program. Our results revealed an antibiofilm activity, with compound 2 being a potential candidate for the treatment of C. tropicalis infections.
Fil: Quinteros, Melisa de Los Ángeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Galera, Ivana Laura Delia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Tolosa, Juan Martín. Universidad de Castilla-La Mancha; España
Fil: García Martínez, Joaquín Calixto. Universidad de Castilla-La Mancha; España
Fil: Páez, Paulina Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; Argentina
Fil: Paraje, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina - Materia
-
OLIGOSTYRYLBENZENES
CANDIDA TROPICALIS
BIOFILMS
PLANKTONIC CELLS
ANTIBIOFILM ACTIVITY - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/115398
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Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilmsQuinteros, Melisa de Los ÁngelesGalera, Ivana Laura DeliaTolosa, Juan MartínGarcía Martínez, Joaquín CalixtoPáez, Paulina LauraParaje, María GabrielaOLIGOSTYRYLBENZENESCANDIDA TROPICALISBIOFILMSPLANKTONIC CELLSANTIBIOFILM ACTIVITYhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1As sessile cells of fungal biofilms are at least 500-fold more resistant to antifungal drugs than their planktonic counterparts, there is a requirement for new antifungal agents. Olygostyrylbenzenes (OSBs) are the first generation of poly(phenylene) vinylene dendrimers with a gram-positive antibacterial activity. Thus, this study aimed to investigate the antifungal activity of four OSBs (1, 2, 3, and 4) on planktonic cells and biofilms of Candida tropicalis. The minimum inhibitory concentration (MIC) for the planktonic population and the sessileminimum inhibitory concentrations (SMIC) were determined. Biofilm eradication was studied by crystal violet stain and light microscopy (LM), and confocal laser scanning microscopy (CLSM) was also utilized in conjunction with the image analysis software COMSTAT. Although all the OSBs studied had antifungalactivity, the cationic OSBs weremore effective than the anionic ones. A significant reduction of biofilms was observed at MIC and supraMIC50 (50 times higher than MIC) for compound 2, and at supraMIC50 with compound 3. Alterations in surface topography and the three-dimensional architecture of the biofilms were evident with LM and CLSM. The LM analysis revealed that the C. tropicalis strain produced a striking biofilmwith oval blastospores, pseudohyphae, and true hyphae. CLSM images showed that a decrease occurred in the thickness of the mature biofilms treated with the OSBs at the most effective concentration for each one. The results obtained by microscopy were supported by those of the COMSTAT program. Our results revealed an antibiofilm activity, with compound 2 being a potential candidate for the treatment of C. tropicalis infections.Fil: Quinteros, Melisa de Los Ángeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Galera, Ivana Laura Delia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Tolosa, Juan Martín. Universidad de Castilla-La Mancha; EspañaFil: García Martínez, Joaquín Calixto. Universidad de Castilla-La Mancha; EspañaFil: Páez, Paulina Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; ArgentinaFil: Paraje, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaTaylor & Francis Ltd2020-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/115398Quinteros, Melisa de Los Ángeles; Galera, Ivana Laura Delia; Tolosa, Juan Martín; García Martínez, Joaquín Calixto; Páez, Paulina Laura; et al.; Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms; Taylor & Francis Ltd; Medical Mycology; 5-20201369-37861460-2709CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mmy/myaa046info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mmy/advance-article-abstract/doi/10.1093/mmy/myaa046/5857579info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:57:42Zoai:ri.conicet.gov.ar:11336/115398instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:57:42.667CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms |
title |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms |
spellingShingle |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms Quinteros, Melisa de Los Ángeles OLIGOSTYRYLBENZENES CANDIDA TROPICALIS BIOFILMS PLANKTONIC CELLS ANTIBIOFILM ACTIVITY |
title_short |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms |
title_full |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms |
title_fullStr |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms |
title_full_unstemmed |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms |
title_sort |
Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms |
dc.creator.none.fl_str_mv |
Quinteros, Melisa de Los Ángeles Galera, Ivana Laura Delia Tolosa, Juan Martín García Martínez, Joaquín Calixto Páez, Paulina Laura Paraje, María Gabriela |
author |
Quinteros, Melisa de Los Ángeles |
author_facet |
Quinteros, Melisa de Los Ángeles Galera, Ivana Laura Delia Tolosa, Juan Martín García Martínez, Joaquín Calixto Páez, Paulina Laura Paraje, María Gabriela |
author_role |
author |
author2 |
Galera, Ivana Laura Delia Tolosa, Juan Martín García Martínez, Joaquín Calixto Páez, Paulina Laura Paraje, María Gabriela |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
OLIGOSTYRYLBENZENES CANDIDA TROPICALIS BIOFILMS PLANKTONIC CELLS ANTIBIOFILM ACTIVITY |
topic |
OLIGOSTYRYLBENZENES CANDIDA TROPICALIS BIOFILMS PLANKTONIC CELLS ANTIBIOFILM ACTIVITY |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
As sessile cells of fungal biofilms are at least 500-fold more resistant to antifungal drugs than their planktonic counterparts, there is a requirement for new antifungal agents. Olygostyrylbenzenes (OSBs) are the first generation of poly(phenylene) vinylene dendrimers with a gram-positive antibacterial activity. Thus, this study aimed to investigate the antifungal activity of four OSBs (1, 2, 3, and 4) on planktonic cells and biofilms of Candida tropicalis. The minimum inhibitory concentration (MIC) for the planktonic population and the sessileminimum inhibitory concentrations (SMIC) were determined. Biofilm eradication was studied by crystal violet stain and light microscopy (LM), and confocal laser scanning microscopy (CLSM) was also utilized in conjunction with the image analysis software COMSTAT. Although all the OSBs studied had antifungalactivity, the cationic OSBs weremore effective than the anionic ones. A significant reduction of biofilms was observed at MIC and supraMIC50 (50 times higher than MIC) for compound 2, and at supraMIC50 with compound 3. Alterations in surface topography and the three-dimensional architecture of the biofilms were evident with LM and CLSM. The LM analysis revealed that the C. tropicalis strain produced a striking biofilmwith oval blastospores, pseudohyphae, and true hyphae. CLSM images showed that a decrease occurred in the thickness of the mature biofilms treated with the OSBs at the most effective concentration for each one. The results obtained by microscopy were supported by those of the COMSTAT program. Our results revealed an antibiofilm activity, with compound 2 being a potential candidate for the treatment of C. tropicalis infections. Fil: Quinteros, Melisa de Los Ángeles. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Galera, Ivana Laura Delia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Tolosa, Juan Martín. Universidad de Castilla-La Mancha; España Fil: García Martínez, Joaquín Calixto. Universidad de Castilla-La Mancha; España Fil: Páez, Paulina Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; Argentina Fil: Paraje, María Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina |
description |
As sessile cells of fungal biofilms are at least 500-fold more resistant to antifungal drugs than their planktonic counterparts, there is a requirement for new antifungal agents. Olygostyrylbenzenes (OSBs) are the first generation of poly(phenylene) vinylene dendrimers with a gram-positive antibacterial activity. Thus, this study aimed to investigate the antifungal activity of four OSBs (1, 2, 3, and 4) on planktonic cells and biofilms of Candida tropicalis. The minimum inhibitory concentration (MIC) for the planktonic population and the sessileminimum inhibitory concentrations (SMIC) were determined. Biofilm eradication was studied by crystal violet stain and light microscopy (LM), and confocal laser scanning microscopy (CLSM) was also utilized in conjunction with the image analysis software COMSTAT. Although all the OSBs studied had antifungalactivity, the cationic OSBs weremore effective than the anionic ones. A significant reduction of biofilms was observed at MIC and supraMIC50 (50 times higher than MIC) for compound 2, and at supraMIC50 with compound 3. Alterations in surface topography and the three-dimensional architecture of the biofilms were evident with LM and CLSM. The LM analysis revealed that the C. tropicalis strain produced a striking biofilmwith oval blastospores, pseudohyphae, and true hyphae. CLSM images showed that a decrease occurred in the thickness of the mature biofilms treated with the OSBs at the most effective concentration for each one. The results obtained by microscopy were supported by those of the COMSTAT program. Our results revealed an antibiofilm activity, with compound 2 being a potential candidate for the treatment of C. tropicalis infections. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/115398 Quinteros, Melisa de Los Ángeles; Galera, Ivana Laura Delia; Tolosa, Juan Martín; García Martínez, Joaquín Calixto; Páez, Paulina Laura; et al.; Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms; Taylor & Francis Ltd; Medical Mycology; 5-2020 1369-3786 1460-2709 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/115398 |
identifier_str_mv |
Quinteros, Melisa de Los Ángeles; Galera, Ivana Laura Delia; Tolosa, Juan Martín; García Martínez, Joaquín Calixto; Páez, Paulina Laura; et al.; Novel antifungal activity of oligostyrylbenzenes compounds on Q5 Candida tropicalis biofilms; Taylor & Francis Ltd; Medical Mycology; 5-2020 1369-3786 1460-2709 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1093/mmy/myaa046 info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mmy/advance-article-abstract/doi/10.1093/mmy/myaa046/5857579 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis Ltd |
publisher.none.fl_str_mv |
Taylor & Francis Ltd |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.13397 |