A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine
- Autores
- Medrano, E.E.; Burrone, O.R.; Ferrer, M.M.; Cafferata, E.G.A.; Algranati, I.D.
- Año de publicación
- 1986
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Treatment of the chemically transformed fibroblasts BP-A31 and other cell lines with low concentrations of cycloheximide (CHM) for 72 h followed by the removal of the protein synthesis inhibitor leads to the proliferation of α-difluoromethylornithine (DFMO)-resistant phenotypes. These drug-resistant cells contain almost no ornithine decarboxylase (ODC) activity and concomitantly very low levels of putrescine and spermidine. Southern blot analysis and measurements of ODC activity and intracellular polyamine levels showed that the described mechanism of inducing resistance to DFMO triggered by CHM does not involve ODC gene amplification, altered transport of the drug or reduced affinity of the enzyme for DFMO. © 1986.
Fil:Medrano, E.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Burrone, O.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Ferrer, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Algranati, I.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. - Fuente
- FEBS Lett. 1986;206(1):106-110
- Materia
-
Cycloheximide
Ornithine decarboxylase
Polyamine
α-Difluoromethylornithine resistance
cycloheximide
eflornithine
putrescine
spermidine
cell line
drug inhibition
drug resistance
fibroblast
in vitro study
nonhuman
priority journal
Animals
Cell Line
Cycloheximide
Drug Resistance
Eflornithine
Fibroblasts
Humans
Mice
Ornithine Decarboxylase
Putrescine
Spermidine - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/2.5/ar
- Repositorio
- Institución
- Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
- OAI Identificador
- paperaa:paper_00145793_v206_n1_p106_Medrano
Ver los metadatos del registro completo
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A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidineMedrano, E.E.Burrone, O.R.Ferrer, M.M.Cafferata, E.G.A.Algranati, I.D.CycloheximideOrnithine decarboxylasePolyamineα-Difluoromethylornithine resistancecycloheximideeflornithineputrescinespermidinecell linedrug inhibitiondrug resistancefibroblastin vitro studynonhumanpriority journalAnimalsCell LineCycloheximideDrug ResistanceEflornithineFibroblastsHumansMiceOrnithine DecarboxylasePutrescineSpermidineTreatment of the chemically transformed fibroblasts BP-A31 and other cell lines with low concentrations of cycloheximide (CHM) for 72 h followed by the removal of the protein synthesis inhibitor leads to the proliferation of α-difluoromethylornithine (DFMO)-resistant phenotypes. These drug-resistant cells contain almost no ornithine decarboxylase (ODC) activity and concomitantly very low levels of putrescine and spermidine. Southern blot analysis and measurements of ODC activity and intracellular polyamine levels showed that the described mechanism of inducing resistance to DFMO triggered by CHM does not involve ODC gene amplification, altered transport of the drug or reduced affinity of the enzyme for DFMO. © 1986.Fil:Medrano, E.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Burrone, O.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Ferrer, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Algranati, I.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.1986info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00145793_v206_n1_p106_MedranoFEBS Lett. 1986;206(1):106-110reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-09-29T13:42:54Zpaperaa:paper_00145793_v206_n1_p106_MedranoInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-09-29 13:42:55.775Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse |
dc.title.none.fl_str_mv |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine |
title |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine |
spellingShingle |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine Medrano, E.E. Cycloheximide Ornithine decarboxylase Polyamine α-Difluoromethylornithine resistance cycloheximide eflornithine putrescine spermidine cell line drug inhibition drug resistance fibroblast in vitro study nonhuman priority journal Animals Cell Line Cycloheximide Drug Resistance Eflornithine Fibroblasts Humans Mice Ornithine Decarboxylase Putrescine Spermidine |
title_short |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine |
title_full |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine |
title_fullStr |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine |
title_full_unstemmed |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine |
title_sort |
A novel mechanism of resistance to α-difluoromethylornithine induced by cycloheximide. Growth with abnormally low levels of putrescine and spermidine |
dc.creator.none.fl_str_mv |
Medrano, E.E. Burrone, O.R. Ferrer, M.M. Cafferata, E.G.A. Algranati, I.D. |
author |
Medrano, E.E. |
author_facet |
Medrano, E.E. Burrone, O.R. Ferrer, M.M. Cafferata, E.G.A. Algranati, I.D. |
author_role |
author |
author2 |
Burrone, O.R. Ferrer, M.M. Cafferata, E.G.A. Algranati, I.D. |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Cycloheximide Ornithine decarboxylase Polyamine α-Difluoromethylornithine resistance cycloheximide eflornithine putrescine spermidine cell line drug inhibition drug resistance fibroblast in vitro study nonhuman priority journal Animals Cell Line Cycloheximide Drug Resistance Eflornithine Fibroblasts Humans Mice Ornithine Decarboxylase Putrescine Spermidine |
topic |
Cycloheximide Ornithine decarboxylase Polyamine α-Difluoromethylornithine resistance cycloheximide eflornithine putrescine spermidine cell line drug inhibition drug resistance fibroblast in vitro study nonhuman priority journal Animals Cell Line Cycloheximide Drug Resistance Eflornithine Fibroblasts Humans Mice Ornithine Decarboxylase Putrescine Spermidine |
dc.description.none.fl_txt_mv |
Treatment of the chemically transformed fibroblasts BP-A31 and other cell lines with low concentrations of cycloheximide (CHM) for 72 h followed by the removal of the protein synthesis inhibitor leads to the proliferation of α-difluoromethylornithine (DFMO)-resistant phenotypes. These drug-resistant cells contain almost no ornithine decarboxylase (ODC) activity and concomitantly very low levels of putrescine and spermidine. Southern blot analysis and measurements of ODC activity and intracellular polyamine levels showed that the described mechanism of inducing resistance to DFMO triggered by CHM does not involve ODC gene amplification, altered transport of the drug or reduced affinity of the enzyme for DFMO. © 1986. Fil:Medrano, E.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Burrone, O.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ferrer, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Algranati, I.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. |
description |
Treatment of the chemically transformed fibroblasts BP-A31 and other cell lines with low concentrations of cycloheximide (CHM) for 72 h followed by the removal of the protein synthesis inhibitor leads to the proliferation of α-difluoromethylornithine (DFMO)-resistant phenotypes. These drug-resistant cells contain almost no ornithine decarboxylase (ODC) activity and concomitantly very low levels of putrescine and spermidine. Southern blot analysis and measurements of ODC activity and intracellular polyamine levels showed that the described mechanism of inducing resistance to DFMO triggered by CHM does not involve ODC gene amplification, altered transport of the drug or reduced affinity of the enzyme for DFMO. © 1986. |
publishDate |
1986 |
dc.date.none.fl_str_mv |
1986 |
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/20.500.12110/paper_00145793_v206_n1_p106_Medrano |
url |
http://hdl.handle.net/20.500.12110/paper_00145793_v206_n1_p106_Medrano |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/2.5/ar |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
FEBS Lett. 1986;206(1):106-110 reponame:Biblioteca Digital (UBA-FCEN) instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales instacron:UBA-FCEN |
reponame_str |
Biblioteca Digital (UBA-FCEN) |
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Biblioteca Digital (UBA-FCEN) |
instname_str |
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
instacron_str |
UBA-FCEN |
institution |
UBA-FCEN |
repository.name.fl_str_mv |
Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales |
repository.mail.fl_str_mv |
ana@bl.fcen.uba.ar |
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13.070432 |