Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine

Autores
Vignoni, Mariana; Erra Balsells, Rosa; Epe, Bernd; Cabrerizo, Franco Martín
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
It is known that β-carbolines are able to produce photosensitized damage in cell-free DNA, but there is little information on their effects on cellular DNA. Therefore, we have analyzed the DNA damage produced by harmine and 9-methyl-harmine under UVA irradiation in V79 cells, together with the associated generation of micronuclei and photocytotoxicity. The results indicate that the most frequent photoproducts generated in the cellular DNA are modified purines such as 8-oxo-7,8-dihydroguanine. Only relatively few single-strand breaks were observed. CPDs were absent, although they were generated in cell-free DNA irradiated under the same conditions. The overall extent of DNA damage in the cells was considerably smaller than the one observed in cell free DNA. The generation of cellular DNA damage was associated with a significant generation of micronuclei and decreased cell proliferation. The data indicate that β-carbolines act as photosensitizers in mammalian cells. The spectrum of DNA modification, and therefore the mechanism of DNA damage generation, differs considerably from that observed with cell-free DNA.
Fil: Vignoni, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina
Fil: Erra Balsells, Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones En Hidratos de Carbono; Argentina
Fil: Epe, Bernd. University Mainz. Institute Of Inorganic And Analytical Chemistry, Johannes Gutenberg; Alemania
Fil: Cabrerizo, Franco Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina
Materia
B-Carbolines
Photosensitization
Cyclobutane Pyrimidine Photodimers
Phototoxicity
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7401
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmineVignoni, MarianaErra Balsells, RosaEpe, BerndCabrerizo, Franco MartínB-CarbolinesPhotosensitizationCyclobutane Pyrimidine PhotodimersPhototoxicityhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1It is known that β-carbolines are able to produce photosensitized damage in cell-free DNA, but there is little information on their effects on cellular DNA. Therefore, we have analyzed the DNA damage produced by harmine and 9-methyl-harmine under UVA irradiation in V79 cells, together with the associated generation of micronuclei and photocytotoxicity. The results indicate that the most frequent photoproducts generated in the cellular DNA are modified purines such as 8-oxo-7,8-dihydroguanine. Only relatively few single-strand breaks were observed. CPDs were absent, although they were generated in cell-free DNA irradiated under the same conditions. The overall extent of DNA damage in the cells was considerably smaller than the one observed in cell free DNA. The generation of cellular DNA damage was associated with a significant generation of micronuclei and decreased cell proliferation. The data indicate that β-carbolines act as photosensitizers in mammalian cells. The spectrum of DNA modification, and therefore the mechanism of DNA damage generation, differs considerably from that observed with cell-free DNA.Fil: Vignoni, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); ArgentinaFil: Erra Balsells, Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones En Hidratos de Carbono; ArgentinaFil: Epe, Bernd. University Mainz. Institute Of Inorganic And Analytical Chemistry, Johannes Gutenberg; AlemaniaFil: Cabrerizo, Franco Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); ArgentinaElsevier2014-01info: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/11336/7401Vignoni, Mariana; Erra Balsells, Rosa; Epe, Bernd; Cabrerizo, Franco Martín; Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine; Elsevier; Journal of Photochemistry and Photobiology B: Biology; 132; 1-2014; 66-711011-1344enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1011134414000384info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotobiol.2014.01.020info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:10:17Zoai:ri.conicet.gov.ar:11336/7401instacron: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:34982025-10-22 11:10:18.244CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
title Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
spellingShingle Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
Vignoni, Mariana
B-Carbolines
Photosensitization
Cyclobutane Pyrimidine Photodimers
Phototoxicity
title_short Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
title_full Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
title_fullStr Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
title_full_unstemmed Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
title_sort Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine
dc.creator.none.fl_str_mv Vignoni, Mariana
Erra Balsells, Rosa
Epe, Bernd
Cabrerizo, Franco Martín
author Vignoni, Mariana
author_facet Vignoni, Mariana
Erra Balsells, Rosa
Epe, Bernd
Cabrerizo, Franco Martín
author_role author
author2 Erra Balsells, Rosa
Epe, Bernd
Cabrerizo, Franco Martín
author2_role author
author
author
dc.subject.none.fl_str_mv B-Carbolines
Photosensitization
Cyclobutane Pyrimidine Photodimers
Phototoxicity
topic B-Carbolines
Photosensitization
Cyclobutane Pyrimidine Photodimers
Phototoxicity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv It is known that β-carbolines are able to produce photosensitized damage in cell-free DNA, but there is little information on their effects on cellular DNA. Therefore, we have analyzed the DNA damage produced by harmine and 9-methyl-harmine under UVA irradiation in V79 cells, together with the associated generation of micronuclei and photocytotoxicity. The results indicate that the most frequent photoproducts generated in the cellular DNA are modified purines such as 8-oxo-7,8-dihydroguanine. Only relatively few single-strand breaks were observed. CPDs were absent, although they were generated in cell-free DNA irradiated under the same conditions. The overall extent of DNA damage in the cells was considerably smaller than the one observed in cell free DNA. The generation of cellular DNA damage was associated with a significant generation of micronuclei and decreased cell proliferation. The data indicate that β-carbolines act as photosensitizers in mammalian cells. The spectrum of DNA modification, and therefore the mechanism of DNA damage generation, differs considerably from that observed with cell-free DNA.
Fil: Vignoni, Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina
Fil: Erra Balsells, Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones En Hidratos de Carbono; Argentina
Fil: Epe, Bernd. University Mainz. Institute Of Inorganic And Analytical Chemistry, Johannes Gutenberg; Alemania
Fil: Cabrerizo, Franco Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina
description It is known that β-carbolines are able to produce photosensitized damage in cell-free DNA, but there is little information on their effects on cellular DNA. Therefore, we have analyzed the DNA damage produced by harmine and 9-methyl-harmine under UVA irradiation in V79 cells, together with the associated generation of micronuclei and photocytotoxicity. The results indicate that the most frequent photoproducts generated in the cellular DNA are modified purines such as 8-oxo-7,8-dihydroguanine. Only relatively few single-strand breaks were observed. CPDs were absent, although they were generated in cell-free DNA irradiated under the same conditions. The overall extent of DNA damage in the cells was considerably smaller than the one observed in cell free DNA. The generation of cellular DNA damage was associated with a significant generation of micronuclei and decreased cell proliferation. The data indicate that β-carbolines act as photosensitizers in mammalian cells. The spectrum of DNA modification, and therefore the mechanism of DNA damage generation, differs considerably from that observed with cell-free DNA.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/7401
Vignoni, Mariana; Erra Balsells, Rosa; Epe, Bernd; Cabrerizo, Franco Martín; Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine; Elsevier; Journal of Photochemistry and Photobiology B: Biology; 132; 1-2014; 66-71
1011-1344
url http://hdl.handle.net/11336/7401
identifier_str_mv Vignoni, Mariana; Erra Balsells, Rosa; Epe, Bernd; Cabrerizo, Franco Martín; Intra- and extra-cellular DNA damage by harmine and 9-methyl-harmine; Elsevier; Journal of Photochemistry and Photobiology B: Biology; 132; 1-2014; 66-71
1011-1344
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1011134414000384
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotobiol.2014.01.020
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/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 Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection 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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