Genetic instability induced by low doses of x-rays in hamster cells

Autores
Seoane, Analia Isabel; Güerci, A.; Dulout, Fernando Noel
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Purpose: Genomic instability involves time delayed events and can be manifested as elevated rates of heritable changes in the progeny of irradiated cells. To study the induction of chromosomal instability by very low doses of radiation Chinese Hamster Ovary (CHO) cells were exposed to 10 - 50 milisieverts (mSv) (≈10 - 50 miligrays (mGy)) of x-rays. Materials and methods: Control and irradiated cell populations were assayed for chromosomal aberrations and assessed using a micronucleus test and anaphase-telophase analysis at the first cell division post-irradiation and at every four population doublings thereafter up to 16 population doublings post-irradiation. Results: Frequencies of micronuclei, anaphase-telophase alterations and chromosomal aberrations were increased when the cells were analysed immediately after x-ray exposure. Micronuclei and anaphase-telophase alterations showed significantly increased frequencies when they were analysed at 12 and 16 population doublings after exposure to 50 mSv. Chromosomal aberrations increased significantly at 12 and 16 population doublings after exposure to 10 mSv and 50 mSv. Conclusions: Our results are consistent with the presence of a phenomenon by which the initial DNA damage in the surviving cells is memorized. Micronuclei and achromatic lessions were the main cytogenetic damage observed in cells exposed to very low doses of x-rays, indicating that these low doses are able to induce genetic instability. © 2007 Informa UK Ltd.
Fil: Seoane, Analia Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; Argentina
Fil: Güerci, A.. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; Argentina
Fil: Dulout, Fernando Noel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; Argentina
Materia
Genetic Instability
Ionizing Radiation
Low Doses
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/82444
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/82444
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Genetic instability induced by low doses of x-rays in hamster cellsSeoane, Analia IsabelGüerci, A.Dulout, Fernando NoelGenetic InstabilityIonizing RadiationLow Doseshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Purpose: Genomic instability involves time delayed events and can be manifested as elevated rates of heritable changes in the progeny of irradiated cells. To study the induction of chromosomal instability by very low doses of radiation Chinese Hamster Ovary (CHO) cells were exposed to 10 - 50 milisieverts (mSv) (≈10 - 50 miligrays (mGy)) of x-rays. Materials and methods: Control and irradiated cell populations were assayed for chromosomal aberrations and assessed using a micronucleus test and anaphase-telophase analysis at the first cell division post-irradiation and at every four population doublings thereafter up to 16 population doublings post-irradiation. Results: Frequencies of micronuclei, anaphase-telophase alterations and chromosomal aberrations were increased when the cells were analysed immediately after x-ray exposure. Micronuclei and anaphase-telophase alterations showed significantly increased frequencies when they were analysed at 12 and 16 population doublings after exposure to 50 mSv. Chromosomal aberrations increased significantly at 12 and 16 population doublings after exposure to 10 mSv and 50 mSv. Conclusions: Our results are consistent with the presence of a phenomenon by which the initial DNA damage in the surviving cells is memorized. Micronuclei and achromatic lessions were the main cytogenetic damage observed in cells exposed to very low doses of x-rays, indicating that these low doses are able to induce genetic instability. © 2007 Informa UK Ltd.Fil: Seoane, Analia Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; ArgentinaFil: Güerci, A.. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; ArgentinaFil: Dulout, Fernando Noel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; ArgentinaTaylor & Francis Ltd2007-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82444Seoane, Analia Isabel; Güerci, A.; Dulout, Fernando Noel; Genetic instability induced by low doses of x-rays in hamster cells; Taylor & Francis Ltd; International Journal Of Radiation Biology; 83; 2; 12-2007; 81-870955-3002CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/09553000601129085info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/09553000601129085info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:18:06Zoai:ri.conicet.gov.ar:11336/82444instacron: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 12:18:07.177CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Genetic instability induced by low doses of x-rays in hamster cells
title Genetic instability induced by low doses of x-rays in hamster cells
spellingShingle Genetic instability induced by low doses of x-rays in hamster cells
Seoane, Analia Isabel
Genetic Instability
Ionizing Radiation
Low Doses
title_short Genetic instability induced by low doses of x-rays in hamster cells
title_full Genetic instability induced by low doses of x-rays in hamster cells
title_fullStr Genetic instability induced by low doses of x-rays in hamster cells
title_full_unstemmed Genetic instability induced by low doses of x-rays in hamster cells
title_sort Genetic instability induced by low doses of x-rays in hamster cells
dc.creator.none.fl_str_mv Seoane, Analia Isabel
Güerci, A.
Dulout, Fernando Noel
author Seoane, Analia Isabel
author_facet Seoane, Analia Isabel
Güerci, A.
Dulout, Fernando Noel
author_role author
author2 Güerci, A.
Dulout, Fernando Noel
author2_role author
author
dc.subject.none.fl_str_mv Genetic Instability
Ionizing Radiation
Low Doses
topic Genetic Instability
Ionizing Radiation
Low Doses
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Purpose: Genomic instability involves time delayed events and can be manifested as elevated rates of heritable changes in the progeny of irradiated cells. To study the induction of chromosomal instability by very low doses of radiation Chinese Hamster Ovary (CHO) cells were exposed to 10 - 50 milisieverts (mSv) (≈10 - 50 miligrays (mGy)) of x-rays. Materials and methods: Control and irradiated cell populations were assayed for chromosomal aberrations and assessed using a micronucleus test and anaphase-telophase analysis at the first cell division post-irradiation and at every four population doublings thereafter up to 16 population doublings post-irradiation. Results: Frequencies of micronuclei, anaphase-telophase alterations and chromosomal aberrations were increased when the cells were analysed immediately after x-ray exposure. Micronuclei and anaphase-telophase alterations showed significantly increased frequencies when they were analysed at 12 and 16 population doublings after exposure to 50 mSv. Chromosomal aberrations increased significantly at 12 and 16 population doublings after exposure to 10 mSv and 50 mSv. Conclusions: Our results are consistent with the presence of a phenomenon by which the initial DNA damage in the surviving cells is memorized. Micronuclei and achromatic lessions were the main cytogenetic damage observed in cells exposed to very low doses of x-rays, indicating that these low doses are able to induce genetic instability. © 2007 Informa UK Ltd.
Fil: Seoane, Analia Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; Argentina
Fil: Güerci, A.. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; Argentina
Fil: Dulout, Fernando Noel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico CONICET- La Plata. Instituto de Genética Veterinaria "Ing. Fernando Noel Dulout". Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Instituto de Genética Veterinaria; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Centro de Investigaciones en Genética Básica y Aplicada; Argentina
description Purpose: Genomic instability involves time delayed events and can be manifested as elevated rates of heritable changes in the progeny of irradiated cells. To study the induction of chromosomal instability by very low doses of radiation Chinese Hamster Ovary (CHO) cells were exposed to 10 - 50 milisieverts (mSv) (≈10 - 50 miligrays (mGy)) of x-rays. Materials and methods: Control and irradiated cell populations were assayed for chromosomal aberrations and assessed using a micronucleus test and anaphase-telophase analysis at the first cell division post-irradiation and at every four population doublings thereafter up to 16 population doublings post-irradiation. Results: Frequencies of micronuclei, anaphase-telophase alterations and chromosomal aberrations were increased when the cells were analysed immediately after x-ray exposure. Micronuclei and anaphase-telophase alterations showed significantly increased frequencies when they were analysed at 12 and 16 population doublings after exposure to 50 mSv. Chromosomal aberrations increased significantly at 12 and 16 population doublings after exposure to 10 mSv and 50 mSv. Conclusions: Our results are consistent with the presence of a phenomenon by which the initial DNA damage in the surviving cells is memorized. Micronuclei and achromatic lessions were the main cytogenetic damage observed in cells exposed to very low doses of x-rays, indicating that these low doses are able to induce genetic instability. © 2007 Informa UK Ltd.
publishDate 2007
dc.date.none.fl_str_mv 2007-12
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/11336/82444
Seoane, Analia Isabel; Güerci, A.; Dulout, Fernando Noel; Genetic instability induced by low doses of x-rays in hamster cells; Taylor & Francis Ltd; International Journal Of Radiation Biology; 83; 2; 12-2007; 81-87
0955-3002
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82444
identifier_str_mv Seoane, Analia Isabel; Güerci, A.; Dulout, Fernando Noel; Genetic instability induced by low doses of x-rays in hamster cells; Taylor & Francis Ltd; International Journal Of Radiation Biology; 83; 2; 12-2007; 81-87
0955-3002
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/09553000601129085
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/09553000601129085
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
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
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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score 12.982451

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