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Title: Microsatellite polymorphism in the EGFR, NOTCH4 and E2F4 genes and their association with breast cancer risk
Authors: González-Hernández, Ana
Henríquez-Hernández, Luis Alberto 
Cabrera de León, Antonio
Rodríguez-Pérez, M. del Cristo
Murias Rosales, Adolfo
Domínguez-Coello, Santiago
Brito-Díaz, Buenaventura
Almeida-González, Delia 
Díaz-Chico, Bonifacio Nicolás 
UNESCO Clasification: 320713 Oncología
Keywords: Breast Cancer
Issue Date: 2012
Publisher: 0393-6155
Journal: International Journal of Biological Markers 
Abstract: Background: The sequences of many human genes that encode proteins involved in cancer contain polymorphic microsatellites. Variations in microsatellite length may constitute risk factors in several human diseases, a possibility that has been little explored in breast cancer. Among the genes that contain polymorphic microsatellites are EGFR, NOTCH4 and E2F4. The length of some of these microsatellites has been associated with breast cancer risk.Purpose and methods: To determine whether the length of the microsatellites 9CA)n in EGFR, (CTG) n in NOTCH4 and (AGC) n in E2F4 was associated with breast cancer risk, we genotyped these 3 microsatellites in 212 women with breast cancer and a control group of 308 women from the general population who did not have this disease.Results and conclusions: The allelic distribution observed for the 3 microsatellites matched that found in other white populations, with the exception of some 9AGC) n alleles in E2F4, which have not been described previously. The length of 9CA) n in EGFR and 9CTG) n in NOTCH4 was not associated with breast cancer (OR= 0.99; 95% CI 0.59-1.37; p= 0.619 and OR= 1.08; 95% CI 0.71-1.65; p= 0.725, respectively). Short alleles (< 13 repeats) of 9AGC) n in E2F4 were less frequent in women with cancer than in the control sample.
ISSN: 0393-6155
DOI: 10.5301/JBM.2012.9583
Source: International Journal of Biological Markers [ISSN 0393-6155], v. 27 (3), p. 219-226, (Julio-Septiembre 2012)
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