Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica
- Autores
- de Campos Nebel, Ildefonso Marcelo; Palmitelli, Micaela; Acevedo, S.; Gonzalez Cid, Marcela Beatriz
- Año de publicación
- 2016
- Idioma
- español castellano
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Topoisomerase II (Top2) poisons idarubicin (IDA) and etoposide (ETO) are anticancer drugs that target Top2 stabilizing DNA-enzymecomplexes and generating double-strand breaks (DSB). These DNA lesions are dangerous because they lead to genomic instability and promotetumorigenesis. These drugs are associated with the development of leukemias characterized by translocations of the MLL gene in treated patients.Our aim was to analyze the residual genetic damage induced by IDA and ETO in normal human fibroblasts at different times. Cells were treatedwith sublethal concentrations of IDA and ETO for 2 h and persistent DSB were evaluated in interphase nuclei and chromosomal aberrations (CA)in metaphase at 26 h post-treatment. In addition, micronuclei and MLL gene rearrangements were determined in interphase nuclei at 30 h posttreatment.Unrepaired persistent DSB induced by IDA and ETO turned into chromatid and chromosome breaks and improper repair in chromatidand chromosome exchanges. Simultaneously with increased CA, there was a marked reduction of the mitotic index, principally in cultures treatedwith IDA, due to the accumulation of cells in G2/M phase of cell cycle. This chromosomal damage progressed to the following interphase causingan increase in the micronucleated cells and in the rearrangements of MLL gene. The persistent DNA damage produced by IDA and ETO in normalhuman cells plays an important role in the possible induction of Top2 poisons-mediated secondary malignancies.
Topoisomerase II (Top2) poisons idarubicin (IDA) and etoposide (ETO) are anticancer drugs that target Top2 stabilizing DNA-enzyme complexes and generating double-strand breaks (DSB). These DNA lesions are dangerous because they lead to genomic instability and promote tumorigenesis. These drugs are associated with the development of leukemias characterized by translocations of the MLL gene in treated patients. Our aim was to analyze the residual genetic damage induced by IDA and ETO in normal human fibroblasts at different times. Cells were treated with sublethal concentrations of IDA and ETO for 2 h and persistent DSB were evaluated in interphase nuclei and chromosomal aberrations (CA) in metaphase at 26 h post-treatment. In addition, micronuclei and MLL gene rearrangements were determined in interphase nuclei at 30 h posttreatment. Unrepaired persistent DSB induced by IDA and ETO turned into chromatid and chromosome breaks and improper repair in chromatid and chromosome exchanges. Simultaneously with increased CA, there was a marked reduction of the mitotic index, principally in cultures treated with IDA, due to the accumulation of cells in G2/M phase of cell cycle. This chromosomal damage progressed to the following interphase causing an increase in the micronucleated cells and in the rearrangements of MLL gene. The persistent DNA damage produced by IDA and ETO in normal human cells plays an important role in the possible induction of Top2 poisons-mediated secondary malignancies.
Fil: de Campos Nebel, Ildefonso Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina
Fil: Palmitelli, Micaela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina
Fil: Acevedo, S.. Instituto de Investigaciones Hematológicas; Argentina
Fil: Gonzalez Cid, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina - Materia
-
IDARUBICINA
ETOPOSIDO
DAÑO AL ADN
GEN MLL
IDARUBICIN
ECTOPOSIDE
DNA DAMAGE
MLL GENE - 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:11336/45028
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Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómicaPersistent genetic damage induced by topoisomerase II poisons in normal human fibroblasts: generation of chromoso me instabilityde Campos Nebel, Ildefonso MarceloPalmitelli, MicaelaAcevedo, S.Gonzalez Cid, Marcela BeatrizIDARUBICINAETOPOSIDODAÑO AL ADNGEN MLLIDARUBICINECTOPOSIDEDNA DAMAGEMLL GENEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Topoisomerase II (Top2) poisons idarubicin (IDA) and etoposide (ETO) are anticancer drugs that target Top2 stabilizing DNA-enzymecomplexes and generating double-strand breaks (DSB). These DNA lesions are dangerous because they lead to genomic instability and promotetumorigenesis. These drugs are associated with the development of leukemias characterized by translocations of the MLL gene in treated patients.Our aim was to analyze the residual genetic damage induced by IDA and ETO in normal human fibroblasts at different times. Cells were treatedwith sublethal concentrations of IDA and ETO for 2 h and persistent DSB were evaluated in interphase nuclei and chromosomal aberrations (CA)in metaphase at 26 h post-treatment. In addition, micronuclei and MLL gene rearrangements were determined in interphase nuclei at 30 h posttreatment.Unrepaired persistent DSB induced by IDA and ETO turned into chromatid and chromosome breaks and improper repair in chromatidand chromosome exchanges. Simultaneously with increased CA, there was a marked reduction of the mitotic index, principally in cultures treatedwith IDA, due to the accumulation of cells in G2/M phase of cell cycle. This chromosomal damage progressed to the following interphase causingan increase in the micronucleated cells and in the rearrangements of MLL gene. The persistent DNA damage produced by IDA and ETO in normalhuman cells plays an important role in the possible induction of Top2 poisons-mediated secondary malignancies.Topoisomerase II (Top2) poisons idarubicin (IDA) and etoposide (ETO) are anticancer drugs that target Top2 stabilizing DNA-enzyme complexes and generating double-strand breaks (DSB). These DNA lesions are dangerous because they lead to genomic instability and promote tumorigenesis. These drugs are associated with the development of leukemias characterized by translocations of the MLL gene in treated patients. Our aim was to analyze the residual genetic damage induced by IDA and ETO in normal human fibroblasts at different times. Cells were treated with sublethal concentrations of IDA and ETO for 2 h and persistent DSB were evaluated in interphase nuclei and chromosomal aberrations (CA) in metaphase at 26 h post-treatment. In addition, micronuclei and MLL gene rearrangements were determined in interphase nuclei at 30 h posttreatment. Unrepaired persistent DSB induced by IDA and ETO turned into chromatid and chromosome breaks and improper repair in chromatid and chromosome exchanges. Simultaneously with increased CA, there was a marked reduction of the mitotic index, principally in cultures treated with IDA, due to the accumulation of cells in G2/M phase of cell cycle. This chromosomal damage progressed to the following interphase causing an increase in the micronucleated cells and in the rearrangements of MLL gene. The persistent DNA damage produced by IDA and ETO in normal human cells plays an important role in the possible induction of Top2 poisons-mediated secondary malignancies.Fil: de Campos Nebel, Ildefonso Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Palmitelli, Micaela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaFil: Acevedo, S.. Instituto de Investigaciones Hematológicas; ArgentinaFil: Gonzalez Cid, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; ArgentinaSociedad Argentina de Genética2016-12info: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/11336/45028de Campos Nebel, Ildefonso Marcelo; Palmitelli, Micaela; Acevedo, S.; Gonzalez Cid, Marcela Beatriz; Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica; Sociedad Argentina de Genética; Basic and Applied Genetics; XXVII; 2; 12-2016; 25-351666-0390CONICET DigitalCONICETspainfo:eu-repo/semantics/altIdentifier/url/http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332016000300003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:39:23Zoai:ri.conicet.gov.ar:11336/45028instacron: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 10:39:23.584CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica Persistent genetic damage induced by topoisomerase II poisons in normal human fibroblasts: generation of chromoso me instability |
title |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica |
spellingShingle |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica de Campos Nebel, Ildefonso Marcelo IDARUBICINA ETOPOSIDO DAÑO AL ADN GEN MLL IDARUBICIN ECTOPOSIDE DNA DAMAGE MLL GENE |
title_short |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica |
title_full |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica |
title_fullStr |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica |
title_full_unstemmed |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica |
title_sort |
Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica |
dc.creator.none.fl_str_mv |
de Campos Nebel, Ildefonso Marcelo Palmitelli, Micaela Acevedo, S. Gonzalez Cid, Marcela Beatriz |
author |
de Campos Nebel, Ildefonso Marcelo |
author_facet |
de Campos Nebel, Ildefonso Marcelo Palmitelli, Micaela Acevedo, S. Gonzalez Cid, Marcela Beatriz |
author_role |
author |
author2 |
Palmitelli, Micaela Acevedo, S. Gonzalez Cid, Marcela Beatriz |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
IDARUBICINA ETOPOSIDO DAÑO AL ADN GEN MLL IDARUBICIN ECTOPOSIDE DNA DAMAGE MLL GENE |
topic |
IDARUBICINA ETOPOSIDO DAÑO AL ADN GEN MLL IDARUBICIN ECTOPOSIDE DNA DAMAGE MLL GENE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Topoisomerase II (Top2) poisons idarubicin (IDA) and etoposide (ETO) are anticancer drugs that target Top2 stabilizing DNA-enzymecomplexes and generating double-strand breaks (DSB). These DNA lesions are dangerous because they lead to genomic instability and promotetumorigenesis. These drugs are associated with the development of leukemias characterized by translocations of the MLL gene in treated patients.Our aim was to analyze the residual genetic damage induced by IDA and ETO in normal human fibroblasts at different times. Cells were treatedwith sublethal concentrations of IDA and ETO for 2 h and persistent DSB were evaluated in interphase nuclei and chromosomal aberrations (CA)in metaphase at 26 h post-treatment. In addition, micronuclei and MLL gene rearrangements were determined in interphase nuclei at 30 h posttreatment.Unrepaired persistent DSB induced by IDA and ETO turned into chromatid and chromosome breaks and improper repair in chromatidand chromosome exchanges. Simultaneously with increased CA, there was a marked reduction of the mitotic index, principally in cultures treatedwith IDA, due to the accumulation of cells in G2/M phase of cell cycle. This chromosomal damage progressed to the following interphase causingan increase in the micronucleated cells and in the rearrangements of MLL gene. The persistent DNA damage produced by IDA and ETO in normalhuman cells plays an important role in the possible induction of Top2 poisons-mediated secondary malignancies. Topoisomerase II (Top2) poisons idarubicin (IDA) and etoposide (ETO) are anticancer drugs that target Top2 stabilizing DNA-enzyme complexes and generating double-strand breaks (DSB). These DNA lesions are dangerous because they lead to genomic instability and promote tumorigenesis. These drugs are associated with the development of leukemias characterized by translocations of the MLL gene in treated patients. Our aim was to analyze the residual genetic damage induced by IDA and ETO in normal human fibroblasts at different times. Cells were treated with sublethal concentrations of IDA and ETO for 2 h and persistent DSB were evaluated in interphase nuclei and chromosomal aberrations (CA) in metaphase at 26 h post-treatment. In addition, micronuclei and MLL gene rearrangements were determined in interphase nuclei at 30 h posttreatment. Unrepaired persistent DSB induced by IDA and ETO turned into chromatid and chromosome breaks and improper repair in chromatid and chromosome exchanges. Simultaneously with increased CA, there was a marked reduction of the mitotic index, principally in cultures treated with IDA, due to the accumulation of cells in G2/M phase of cell cycle. This chromosomal damage progressed to the following interphase causing an increase in the micronucleated cells and in the rearrangements of MLL gene. The persistent DNA damage produced by IDA and ETO in normal human cells plays an important role in the possible induction of Top2 poisons-mediated secondary malignancies. Fil: de Campos Nebel, Ildefonso Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina Fil: Palmitelli, Micaela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina Fil: Acevedo, S.. Instituto de Investigaciones Hematológicas; Argentina Fil: Gonzalez Cid, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Medicina Experimental. Academia Nacional de Medicina de Buenos Aires. Instituto de Medicina Experimental; Argentina |
description |
Topoisomerase II (Top2) poisons idarubicin (IDA) and etoposide (ETO) are anticancer drugs that target Top2 stabilizing DNA-enzymecomplexes and generating double-strand breaks (DSB). These DNA lesions are dangerous because they lead to genomic instability and promotetumorigenesis. These drugs are associated with the development of leukemias characterized by translocations of the MLL gene in treated patients.Our aim was to analyze the residual genetic damage induced by IDA and ETO in normal human fibroblasts at different times. Cells were treatedwith sublethal concentrations of IDA and ETO for 2 h and persistent DSB were evaluated in interphase nuclei and chromosomal aberrations (CA)in metaphase at 26 h post-treatment. In addition, micronuclei and MLL gene rearrangements were determined in interphase nuclei at 30 h posttreatment.Unrepaired persistent DSB induced by IDA and ETO turned into chromatid and chromosome breaks and improper repair in chromatidand chromosome exchanges. Simultaneously with increased CA, there was a marked reduction of the mitotic index, principally in cultures treatedwith IDA, due to the accumulation of cells in G2/M phase of cell cycle. This chromosomal damage progressed to the following interphase causingan increase in the micronucleated cells and in the rearrangements of MLL gene. The persistent DNA damage produced by IDA and ETO in normalhuman cells plays an important role in the possible induction of Top2 poisons-mediated secondary malignancies. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12 |
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/11336/45028 de Campos Nebel, Ildefonso Marcelo; Palmitelli, Micaela; Acevedo, S.; Gonzalez Cid, Marcela Beatriz; Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica; Sociedad Argentina de Genética; Basic and Applied Genetics; XXVII; 2; 12-2016; 25-35 1666-0390 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/45028 |
identifier_str_mv |
de Campos Nebel, Ildefonso Marcelo; Palmitelli, Micaela; Acevedo, S.; Gonzalez Cid, Marcela Beatriz; Daño genético persistente inducido por venenos de topoisomerasa II en fibroblastos humanos normales: generación de inestabilidad cromosómica; Sociedad Argentina de Genética; Basic and Applied Genetics; XXVII; 2; 12-2016; 25-35 1666-0390 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1852-62332016000300003 |
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 |
Sociedad Argentina de Genética |
publisher.none.fl_str_mv |
Sociedad Argentina de Genética |
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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13.070432 |