High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis
- Autores
- Cottliar, Alejandra; Fundia, Ariela Freya; Boerr, Luis; Sambuelli, Alicia; Negreira, Silvia; Gil, Anibal; Gomez, Juan Carlos; Chopita, Nestor; Bernedo, Alberto; Slavutsky, Irma Rosa
- Año de publicación
- 2000
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Chromosome instability provides a predisposing background to malignancy, contributing to the crucial genetic changes in multistep carcinogenesis. The aim of this work was to analyze chromosome instability in patients with ulcerative colitis (UC) to achieve a better understanding of the increased risk for colorectal cancer. METHODS: Peripheral blood lymphocyte cultures from 20 untreated UC patients and 24 controls were used to study chromosome instability by assessing telomeric associations (TAS), chromosome aberrations (CA), and sister chromatid exchanges (SCE). RESULTS: Mean frequencies of TAS and CA were significantly increased in UC patients compared to controls (p < 0.001). Chromosomes 10, 11, 21, 16, and 19 were the most frequently involved in TAS. A total of 104 CA clustered in 66 breakpoints could be exactly localized. Seven nonrandom bands significantly affected in UC patients were found (p < 0.004), showing a significant correlation with the location of cancer breakpoints (p < 0.003), particularly with colorectal carcinoma rearrangements. SCE analysis showed higher levels in patients compared to controls (p < 0.006), but no differences were observed in cell cycle kinetics. CONCLUSIONS: Our results demonstrate the presence of an unstable genome in UC patients that could be related to the cancer development observed in this disease.
Fil: Cottliar, Alejandra. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; Argentina
Fil: Fundia, Ariela Freya. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; Argentina
Fil: Boerr, Luis. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina
Fil: Sambuelli, Alicia. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina
Fil: Negreira, Silvia. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina
Fil: Gil, Anibal. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina
Fil: Gomez, Juan Carlos. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; Argentina
Fil: Chopita, Nestor. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; Argentina
Fil: Bernedo, Alberto. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; Argentina
Fil: Slavutsky, Irma Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; Argentina - Materia
-
ULCERATIVE COLITIS
CHROMOSOME ABERRATIONS
TELOMERIC ASSOCIATIONS
SISTER CHROMATID EXCHANGE - 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:11336/55192
Ver los metadatos del registro completo
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High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitisCottliar, AlejandraFundia, Ariela FreyaBoerr, LuisSambuelli, AliciaNegreira, SilviaGil, AnibalGomez, Juan CarlosChopita, NestorBernedo, AlbertoSlavutsky, Irma RosaULCERATIVE COLITISCHROMOSOME ABERRATIONSTELOMERIC ASSOCIATIONSSISTER CHROMATID EXCHANGEhttps://purl.org/becyt/ford/3.1https://purl.org/becyt/ford/3Chromosome instability provides a predisposing background to malignancy, contributing to the crucial genetic changes in multistep carcinogenesis. The aim of this work was to analyze chromosome instability in patients with ulcerative colitis (UC) to achieve a better understanding of the increased risk for colorectal cancer. METHODS: Peripheral blood lymphocyte cultures from 20 untreated UC patients and 24 controls were used to study chromosome instability by assessing telomeric associations (TAS), chromosome aberrations (CA), and sister chromatid exchanges (SCE). RESULTS: Mean frequencies of TAS and CA were significantly increased in UC patients compared to controls (p < 0.001). Chromosomes 10, 11, 21, 16, and 19 were the most frequently involved in TAS. A total of 104 CA clustered in 66 breakpoints could be exactly localized. Seven nonrandom bands significantly affected in UC patients were found (p < 0.004), showing a significant correlation with the location of cancer breakpoints (p < 0.003), particularly with colorectal carcinoma rearrangements. SCE analysis showed higher levels in patients compared to controls (p < 0.006), but no differences were observed in cell cycle kinetics. CONCLUSIONS: Our results demonstrate the presence of an unstable genome in UC patients that could be related to the cancer development observed in this disease.Fil: Cottliar, Alejandra. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; ArgentinaFil: Fundia, Ariela Freya. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; ArgentinaFil: Boerr, Luis. Hospital de Gastroenterología “Bonorino Udaondo,; ArgentinaFil: Sambuelli, Alicia. Hospital de Gastroenterología “Bonorino Udaondo,; ArgentinaFil: Negreira, Silvia. Hospital de Gastroenterología “Bonorino Udaondo,; ArgentinaFil: Gil, Anibal. Hospital de Gastroenterología “Bonorino Udaondo,; ArgentinaFil: Gomez, Juan Carlos. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; ArgentinaFil: Chopita, Nestor. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; ArgentinaFil: Bernedo, Alberto. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; ArgentinaFil: Slavutsky, Irma Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; ArgentinaNature Publishing Group2000-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/55192Cottliar, Alejandra; Fundia, Ariela Freya; Boerr, Luis; Sambuelli, Alicia; Negreira, Silvia; et al.; High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis; Nature Publishing Group; American Journal Of Gastroenterology; 95; 9; 9-2000; 2301-23070002-9270CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1572-0241.2000.02315.xinfo:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/ajg2000581info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:00Zoai:ri.conicet.gov.ar:11336/55192instacron: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:34982025-09-03 09:45:00.495CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis |
title |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis |
spellingShingle |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis Cottliar, Alejandra ULCERATIVE COLITIS CHROMOSOME ABERRATIONS TELOMERIC ASSOCIATIONS SISTER CHROMATID EXCHANGE |
title_short |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis |
title_full |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis |
title_fullStr |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis |
title_full_unstemmed |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis |
title_sort |
High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis |
dc.creator.none.fl_str_mv |
Cottliar, Alejandra Fundia, Ariela Freya Boerr, Luis Sambuelli, Alicia Negreira, Silvia Gil, Anibal Gomez, Juan Carlos Chopita, Nestor Bernedo, Alberto Slavutsky, Irma Rosa |
author |
Cottliar, Alejandra |
author_facet |
Cottliar, Alejandra Fundia, Ariela Freya Boerr, Luis Sambuelli, Alicia Negreira, Silvia Gil, Anibal Gomez, Juan Carlos Chopita, Nestor Bernedo, Alberto Slavutsky, Irma Rosa |
author_role |
author |
author2 |
Fundia, Ariela Freya Boerr, Luis Sambuelli, Alicia Negreira, Silvia Gil, Anibal Gomez, Juan Carlos Chopita, Nestor Bernedo, Alberto Slavutsky, Irma Rosa |
author2_role |
author author author author author author author author author |
dc.subject.none.fl_str_mv |
ULCERATIVE COLITIS CHROMOSOME ABERRATIONS TELOMERIC ASSOCIATIONS SISTER CHROMATID EXCHANGE |
topic |
ULCERATIVE COLITIS CHROMOSOME ABERRATIONS TELOMERIC ASSOCIATIONS SISTER CHROMATID EXCHANGE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.1 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
Chromosome instability provides a predisposing background to malignancy, contributing to the crucial genetic changes in multistep carcinogenesis. The aim of this work was to analyze chromosome instability in patients with ulcerative colitis (UC) to achieve a better understanding of the increased risk for colorectal cancer. METHODS: Peripheral blood lymphocyte cultures from 20 untreated UC patients and 24 controls were used to study chromosome instability by assessing telomeric associations (TAS), chromosome aberrations (CA), and sister chromatid exchanges (SCE). RESULTS: Mean frequencies of TAS and CA were significantly increased in UC patients compared to controls (p < 0.001). Chromosomes 10, 11, 21, 16, and 19 were the most frequently involved in TAS. A total of 104 CA clustered in 66 breakpoints could be exactly localized. Seven nonrandom bands significantly affected in UC patients were found (p < 0.004), showing a significant correlation with the location of cancer breakpoints (p < 0.003), particularly with colorectal carcinoma rearrangements. SCE analysis showed higher levels in patients compared to controls (p < 0.006), but no differences were observed in cell cycle kinetics. CONCLUSIONS: Our results demonstrate the presence of an unstable genome in UC patients that could be related to the cancer development observed in this disease. Fil: Cottliar, Alejandra. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; Argentina Fil: Fundia, Ariela Freya. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; Argentina Fil: Boerr, Luis. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina Fil: Sambuelli, Alicia. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina Fil: Negreira, Silvia. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina Fil: Gil, Anibal. Hospital de Gastroenterología “Bonorino Udaondo,; Argentina Fil: Gomez, Juan Carlos. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; Argentina Fil: Chopita, Nestor. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; Argentina Fil: Bernedo, Alberto. Provincia de Buenos Aires. Hospital Interzonal General de Agudos Gral. San Martin; Argentina Fil: Slavutsky, Irma Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Academia Nacional de Medicina de Buenos Aires. Instituto de Investigaciones Hematológicas "Mariano R. Castex"; Argentina |
description |
Chromosome instability provides a predisposing background to malignancy, contributing to the crucial genetic changes in multistep carcinogenesis. The aim of this work was to analyze chromosome instability in patients with ulcerative colitis (UC) to achieve a better understanding of the increased risk for colorectal cancer. METHODS: Peripheral blood lymphocyte cultures from 20 untreated UC patients and 24 controls were used to study chromosome instability by assessing telomeric associations (TAS), chromosome aberrations (CA), and sister chromatid exchanges (SCE). RESULTS: Mean frequencies of TAS and CA were significantly increased in UC patients compared to controls (p < 0.001). Chromosomes 10, 11, 21, 16, and 19 were the most frequently involved in TAS. A total of 104 CA clustered in 66 breakpoints could be exactly localized. Seven nonrandom bands significantly affected in UC patients were found (p < 0.004), showing a significant correlation with the location of cancer breakpoints (p < 0.003), particularly with colorectal carcinoma rearrangements. SCE analysis showed higher levels in patients compared to controls (p < 0.006), but no differences were observed in cell cycle kinetics. CONCLUSIONS: Our results demonstrate the presence of an unstable genome in UC patients that could be related to the cancer development observed in this disease. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-09 |
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/11336/55192 Cottliar, Alejandra; Fundia, Ariela Freya; Boerr, Luis; Sambuelli, Alicia; Negreira, Silvia; et al.; High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis; Nature Publishing Group; American Journal Of Gastroenterology; 95; 9; 9-2000; 2301-2307 0002-9270 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/55192 |
identifier_str_mv |
Cottliar, Alejandra; Fundia, Ariela Freya; Boerr, Luis; Sambuelli, Alicia; Negreira, Silvia; et al.; High frequencies of telomeric associations, chromosome aberrations, and sister chromatid exchanges in ulcerative colitis; Nature Publishing Group; American Journal Of Gastroenterology; 95; 9; 9-2000; 2301-2307 0002-9270 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1572-0241.2000.02315.x info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/ajg2000581 |
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 |
dc.publisher.none.fl_str_mv |
Nature Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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