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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/7401
Ver los metadatos del registro completo
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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 Técnicas2025-09-29T09:41:44Zoai: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:34982025-09-29 09:41:45.261CONICET 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 |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |