Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers

Over the past ten years, alternative methods for the rapid screening of PSs have been developed. In the present work, a study was undertaken to correlate the phototoxicity of plant extracts on either prokaryotic or eukaryotic cells, with the total oxidation status (TOS) as well as with their ability...

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Autores: Mamone, Leandro Ariel, Di Venosa, Gabriela Mariana, Saenz, Daniel Alberto, Batlle, Alcira María del C., Casas, Adriana Gabriela
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/47027
Acceso en línea:http://hdl.handle.net/11336/47027
Access Level:acceso abierto
Palabra clave:Free Radicals
Photodynamic Therapy
Photodynamic Antimicrobial Chemotherapy
Plants
Reactive Oxygen Species
Singlet Oxygen
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
id AR_7682a9b1d08dac4f43eb00a1ce9f54bf
oai_identifier_str oai:ri.conicet.gov.ar:11336/47027
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
title Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
spellingShingle Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
Mamone, Leandro Ariel
Free Radicals
Photodynamic Therapy
Photodynamic Antimicrobial Chemotherapy
Plants
Reactive Oxygen Species
Singlet Oxygen
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
title_short Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
title_full Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
title_fullStr Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
title_full_unstemmed Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
title_sort Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers
dc.creator.none.fl_str_mv Mamone, Leandro Ariel
Di Venosa, Gabriela Mariana
Saenz, Daniel Alberto
Batlle, Alcira María del C.
Casas, Adriana Gabriela
author Mamone, Leandro Ariel
author_facet Mamone, Leandro Ariel
Di Venosa, Gabriela Mariana
Saenz, Daniel Alberto
Batlle, Alcira María del C.
Casas, Adriana Gabriela
author_role author
author2 Di Venosa, Gabriela Mariana
Saenz, Daniel Alberto
Batlle, Alcira María del C.
Casas, Adriana Gabriela
author2_role author
author
author
author
dc.subject.none.fl_str_mv Free Radicals
Photodynamic Therapy
Photodynamic Antimicrobial Chemotherapy
Plants
Reactive Oxygen Species
Singlet Oxygen
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
topic Free Radicals
Photodynamic Therapy
Photodynamic Antimicrobial Chemotherapy
Plants
Reactive Oxygen Species
Singlet Oxygen
https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
description Over the past ten years, alternative methods for the rapid screening of PSs have been developed. In the present work, a study was undertaken to correlate the phototoxicity of plant extracts on either prokaryotic or eukaryotic cells, with the total oxidation status (TOS) as well as with their ability to produce 1O2. Results demonstrated that the extracts containing PSs that were active either on eukaryotic cells or bacteria increased their TOS after illumination, and that there was a certain degree of positive correlation between the extract phototoxic efficacy and TOS levels. The production of 1O2 by the illuminated extracts was indirectly measured by the use of the fluorescence of “singlet oxygen sensor green”, which is a method that has proved highly sensitive for such measurement. 1O2 was detectable only upon illumination of the most active extracts. In addition, the oxidation of tryptophan and was employed as a method capable of measuring ROS generated by both type I and II ROS reactions. However, it turned out to be not sensitive enough to detect the species generated by plant extracts. Results demonstrated that the TOS method, initially developed to measure the oxidant status in plasma, can be readily applied to plant extracts. Unlike the method used to detect 1O2, the method employed for the detection of TOS proved to be accurate, since all the extracts that displayed a high phototoxic activity on either prokaryotic or eukaryotic cells, presented high TOS levels after illumination.
publishDate 2016
dc.date.none.fl_str_mv 2016-10
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/11336/47027
Mamone, Leandro Ariel; Di Venosa, Gabriela Mariana; Saenz, Daniel Alberto; Batlle, Alcira María del C.; Casas, Adriana Gabriela; Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers; Academic Press Inc Elsevier Science; Methods; 109; 10-2016; 73-80
1046-2023
CONICET Digital
CONICET
url http://hdl.handle.net/11336/47027
identifier_str_mv Mamone, Leandro Ariel; Di Venosa, Gabriela Mariana; Saenz, Daniel Alberto; Batlle, Alcira María del C.; Casas, Adriana Gabriela; Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers; Academic Press Inc Elsevier Science; Methods; 109; 10-2016; 73-80
1046-2023
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ymeth.2016.05.020
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1046202316301530
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
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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spelling Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizersMamone, Leandro ArielDi Venosa, Gabriela MarianaSaenz, Daniel AlbertoBatlle, Alcira María del C.Casas, Adriana GabrielaFree RadicalsPhotodynamic TherapyPhotodynamic Antimicrobial ChemotherapyPlantsReactive Oxygen SpeciesSinglet Oxygenhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Over the past ten years, alternative methods for the rapid screening of PSs have been developed. In the present work, a study was undertaken to correlate the phototoxicity of plant extracts on either prokaryotic or eukaryotic cells, with the total oxidation status (TOS) as well as with their ability to produce 1O2. Results demonstrated that the extracts containing PSs that were active either on eukaryotic cells or bacteria increased their TOS after illumination, and that there was a certain degree of positive correlation between the extract phototoxic efficacy and TOS levels. The production of 1O2 by the illuminated extracts was indirectly measured by the use of the fluorescence of “singlet oxygen sensor green”, which is a method that has proved highly sensitive for such measurement. 1O2 was detectable only upon illumination of the most active extracts. In addition, the oxidation of tryptophan and was employed as a method capable of measuring ROS generated by both type I and II ROS reactions. However, it turned out to be not sensitive enough to detect the species generated by plant extracts. Results demonstrated that the TOS method, initially developed to measure the oxidant status in plasma, can be readily applied to plant extracts. Unlike the method used to detect 1O2, the method employed for the detection of TOS proved to be accurate, since all the extracts that displayed a high phototoxic activity on either prokaryotic or eukaryotic cells, presented high TOS levels after illumination.Fil: Mamone, Leandro Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Investigaciones sobre Porfirinas y Porfirias. Universidad de Buenos Aires. Centro de Investigaciones sobre Porfirinas y Porfirias; ArgentinaFil: Di Venosa, Gabriela Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Investigaciones sobre Porfirinas y Porfirias. Universidad de Buenos Aires. Centro de Investigaciones sobre Porfirinas y Porfirias; ArgentinaFil: Saenz, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Investigaciones sobre Porfirinas y Porfirias. Universidad de Buenos Aires. Centro de Investigaciones sobre Porfirinas y Porfirias; ArgentinaFil: Batlle, Alcira María del C.. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Investigaciones sobre Porfirinas y Porfirias. Universidad de Buenos Aires. Centro de Investigaciones sobre Porfirinas y Porfirias; ArgentinaFil: Casas, Adriana Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Centro de Investigaciones sobre Porfirinas y Porfirias. Universidad de Buenos Aires. Centro de Investigaciones sobre Porfirinas y Porfirias; ArgentinaAcademic Press Inc Elsevier Science2016-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/47027Mamone, Leandro Ariel; Di Venosa, Gabriela Mariana; Saenz, Daniel Alberto; Batlle, Alcira María del C.; Casas, Adriana Gabriela; Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers; Academic Press Inc Elsevier Science; Methods; 109; 10-2016; 73-801046-2023CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ymeth.2016.05.020info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1046202316301530info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:34:43Zoai:ri.conicet.gov.ar:11336/47027instacron: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:34982024-05-08 13:34:43.903CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
score 15,81155

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