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CCND1 and CDKN1B Polymorphisms and Risk of Breast Cancer

Date
2010
Author
Unal, Hilal
Cacina, Canan
Gazioglu, Ertugrul
Isbir, Turgay
Zengin, Emel
Canbay, Emel
Cengiz, Ali
Eraltan, Ilhan Yaylim
Cercel, Ali
Aydogan, Fatih
Ferahman, Mehmet
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Abstract
Background and Objectives. Previous studies have shown alterations in the cell cycle regulatory proteins in breast carcinomas. However, the results of these studies remain controversial. Cyclin D1 (CCND1) and p27(KIP1) (CDKN1B) are two essential regulators of cell cycle progression. This study aimed to investigate the associations of CCND1 A870G and CDKN1B C79T polymorphisms with breast cancer risk. Patients and Methods. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to determine the genotype and allelic frequencies of polymorphisms. Seventy-eight breast cancer patients and 84 age-matched healthy controls were included in the study. Results. Frequencies of CT genotype and T allele of CDKN1B were found to be higher in breast cancer patients than in controls (p=0.013, OR: 1.514 95% CI: 1.086-2.114.15; p=0.007, OR=1.496; 95% CI: 1.111-2.014, respectively). The frequency of AA genotype of CCND1 was decreased in hormone receptor- (estrogen and progesterone receptors) negative patients with breast cancer (p<0.049, OR=0.286; 95% CI: 0.071-1.142) Conclusions. Even though CDKN1B polymorphism appears to be an important predictive factor for breast cancer risk and CCND1 polymorphism may be a prognostic biomarker for breast cancer, further investigations with larger study groups are needed to fully elucidate the role of CCND1 and CDKN1B polymorphisms in the development and prognosis of breast cancer.
URI
http://hdl.handle.net/20.500.12627/111205
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Creative Commons Lisansı

İstanbul Üniversitesi Akademik Arşiv Sistemi (ilgili içerikte aksi belirtilmediği sürece) Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

DSpace software copyright © 2002-2016  DuraSpace
Contact Us | Send Feedback
Theme by 
Atmire NV