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Erschienen in: Journal of Cancer Research and Clinical Oncology 11/2006

01.11.2006 | Original Paper

Combined profile of the tandem repeats CAG, TA and CA of the androgen and estrogen receptor genes in breast cancer

verfasst von: Andrei Anghel, Marius Raica, Catalin Marian, Sorin Ursoniu, Oana Mitrasca

Erschienen in: Journal of Cancer Research and Clinical Oncology | Ausgabe 11/2006

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Abstract

Purpose

Case–control studies have reported inconsistent results concerning the association between polymorphisms in the androgen and estrogen receptor (ER) genes and breast cancer. While several studies investigated the association between the androgen receptor (AR) gene, CAG repeat and breast cancer, for the CA and TA repeats in the ER genes there are considerably fewer studies (one for CA and none for TA).

Methods

We have investigated the potential link between three tandem repeats (CAG, TA, and CA) in the AR, ERs α and β genes, respectively, and breast cancer. DNA was isolated from 153 invasive breast tumors and 318 controls, and the three tandem repeats were sized by polyacrylamide electrophoresis. Number of repeats in each allele and the total repeats of both alleles were taken as variables for classification into dichotomous groups using the median of each variable in the control group as cut-off point. Relationship between polymorphic tandem repeats and breast cancer was assessed by multivariate logistic regression models.

Results

Three variables combined, longer CAGsum (≥28), shorter TA (<23) and CA (<23) repeats could constitute a possible genetic profile associated with breast cancer.

Conclusions

Our results confirm previous reports regarding an association between longer CAG repeats and breast cancer. In addition to that, we found that the combination of long CAG, short TA and CA repeats are strongly associated with breast cancer.
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Metadaten
Titel
Combined profile of the tandem repeats CAG, TA and CA of the androgen and estrogen receptor genes in breast cancer
verfasst von
Andrei Anghel
Marius Raica
Catalin Marian
Sorin Ursoniu
Oana Mitrasca
Publikationsdatum
01.11.2006
Verlag
Springer-Verlag
Erschienen in
Journal of Cancer Research and Clinical Oncology / Ausgabe 11/2006
Print ISSN: 0171-5216
Elektronische ISSN: 1432-1335
DOI
https://doi.org/10.1007/s00432-006-0121-9

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