Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines

This study covers an area of great importance in the research of breast cancer, related to the study of the effects of both estrogens (E2) and anti-estrogens (Tamoxifen) on chromosomes and of modulation of gene expression. Considering that breast cancer is a very heterogeneous disease and that patie...

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Autor Principal: Rondón Lagos, Sandra Milena
Otros Autores: Sapino, Anna
Formato: Tesis de doctorado (Doctoral Thesis)
Lenguaje:Español (Spanish)
Publicado: Universidad del Rosario 2014
Materias:
Acceso en línea:http://repository.urosario.edu.co/handle/10336/10215
id ir-10336-10215
recordtype dspace
spelling ir-10336-102152019-09-19T12:37:54Z Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines Rondón Lagos, Sandra Milena Sapino, Anna Breast Cancer, Chromosomal abnormalities, M-FISH, Tamoxifen, 17B-Estradiol Enfermedades Breast Cancer, Chromosomal abnormalities, M-FISH, Tamoxifen, 17B-estradiol 17β-estradiol Ingeniería biomédica Genética Cromosomas This study covers an area of great importance in the research of breast cancer, related to the study of the effects of both estrogens (E2) and anti-estrogens (Tamoxifen) on chromosomes and of modulation of gene expression. Considering that breast cancer is a very heterogeneous disease and that patients respond differently to treatment, the identification of chromosomal abnormalities as well as genes responsive to 17β-estradiol (E2) and Tamoxifen (TAM) could provide the necessary framework to understand the complex effects of this hormone in target cells and could explain, at least in part, the development of cellular resistance to TAM treatment and the subsequent best therapeutic option. In this order of ideas, we determined the effects of E2 and TAM on the chromosomes and on the modulation of gene expression in four breast cancer cell lines, which represent three of the five subtypes of breast cancer known at present. The results are presented in six chapters - each one has a group of the results achieved around the cytogenetic characteristics and gene expression profiles of four cell lines and the effects of E2 and TAM incubation on those. The first chapter describes the main features of breast cancer, furthering the use and effects of E2 and TAM treatment. This study covers an area of great importance in the research of breast cancer, related to the study of the effects of both estrogens (E2) and anti-estrogens (Tamoxifen) on chromosomes and of modulation of gene expression. Considering that breast cancer is a very heterogeneous disease and that patients respond differently to treatment, the identification of chromosomal abnormalities as well as genes responsive to 17β-estradiol (E2) and Tamoxifen (TAM) could provide the necessary framework to understand the complex effects of this hormone in target cells and could explain, at least in part, the development of cellular resistance to TAM treatment and the subsequent best therapeutic option. In this order of ideas, we determined the effects of E2 and TAM on the chromosomes and on the modulation of gene expression in four breast cancer cell lines, which represent three of the five subtypes of breast cancer known at present. The results are presented in six chapters - each one has a group of the results achieved around the cytogenetic characteristics and gene expression profiles of four cell lines and the effects of E2 and TAM incubation on those. The first chapter describes the main features of breast cancer, furthering the use and effects of E2 and TAM treatment. Eracol y Colciencias 2014-07-29 2015-02-23T12:43:20Z info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/acceptedVersion http://repository.urosario.edu.co/handle/10336/10215 spa info:eu-repo/semantics/openAccess application/pdf Universidad del Rosario Doctorado en Ciencias Biomédicas Facultad de Ciencias Naturales y Matemáticas instname:Universidad del Rosario reponame:Repositorio Institucional EdocUR
institution EdocUR - Universidad del Rosario
collection DSpace
language Español (Spanish)
topic Breast Cancer, Chromosomal abnormalities, M-FISH, Tamoxifen, 17B-Estradiol
Enfermedades
Breast Cancer, Chromosomal abnormalities, M-FISH, Tamoxifen, 17B-estradiol
17β-estradiol
Ingeniería biomédica
Genética
Cromosomas
spellingShingle Breast Cancer, Chromosomal abnormalities, M-FISH, Tamoxifen, 17B-Estradiol
Enfermedades
Breast Cancer, Chromosomal abnormalities, M-FISH, Tamoxifen, 17B-estradiol
17β-estradiol
Ingeniería biomédica
Genética
Cromosomas
Rondón Lagos, Sandra Milena
Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines
description This study covers an area of great importance in the research of breast cancer, related to the study of the effects of both estrogens (E2) and anti-estrogens (Tamoxifen) on chromosomes and of modulation of gene expression. Considering that breast cancer is a very heterogeneous disease and that patients respond differently to treatment, the identification of chromosomal abnormalities as well as genes responsive to 17β-estradiol (E2) and Tamoxifen (TAM) could provide the necessary framework to understand the complex effects of this hormone in target cells and could explain, at least in part, the development of cellular resistance to TAM treatment and the subsequent best therapeutic option. In this order of ideas, we determined the effects of E2 and TAM on the chromosomes and on the modulation of gene expression in four breast cancer cell lines, which represent three of the five subtypes of breast cancer known at present. The results are presented in six chapters - each one has a group of the results achieved around the cytogenetic characteristics and gene expression profiles of four cell lines and the effects of E2 and TAM incubation on those. The first chapter describes the main features of breast cancer, furthering the use and effects of E2 and TAM treatment.
author2 Sapino, Anna
author_facet Sapino, Anna
Rondón Lagos, Sandra Milena
format Tesis de doctorado (Doctoral Thesis)
author Rondón Lagos, Sandra Milena
author_sort Rondón Lagos, Sandra Milena
title Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines
title_short Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines
title_full Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines
title_fullStr Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines
title_full_unstemmed Effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines
title_sort effects of 17β-estradiol and tamoxifen on the induction of chromosomal abnormalities and on the expression of her2 gene in breast cancer cell lines
publisher Universidad del Rosario
publishDate 2014
url http://repository.urosario.edu.co/handle/10336/10215
_version_ 1645141835965792256
score 12,111491