title: CDC 25A gene 263C/T, -350C/T, and -51C/G polymorphisms in breast carcinoma.
abstract: The family of cell division cycle 25 (CDC25) phosphatase is one of the important regulators of the cell cycle progression. In mammalian cells, three isoforms have been identified: CDC25A, CDC25B, and CDC25C. CDC25A is required to enter S time, and the overexpression of this phosphatase accelerates the entrance to S time. CDC25A overexpression could render tumor cells less sensitive to DNA replication checkpoints, thereby contributing to their genomic instability. We aimed to investigate, for the first time, the frequency of human CDC25A gene SNPs in metastatic and non-metastatic breast cancer. Total number of 281 eligible patients with histologically confirmed incident of breast cancer and 137 cancer-free controls were included. The detection of CDC25A gene polymorphisms was achieved with real-time polymerase chain reaction and restriction fragment length polymorphism techniques. We found that the 263C/T polymorphism was significantly associated with breast cancer and risk of metastasis. The -350C/T polymorphism in the promoter region of CDC25A gene was found to associate with neither breast cancer nor metastasis. The other promoter polymorphism -51C/G in the CDC25A gene associated with breast cancer but not associated with metastasis. These data suggest that 263C/T and -51C/G polymorphisms of CDC25A gene could be candidate markers for earlier diagnosis and targets for breast cancer therapy.
authors.affiliation: Department of Biological Sciences, University of Gaziantep, 27310 Gaziantep, Turkey.
authors.forename: Isik Didem
authors.initials: ID
authors.lastname: Karagoz
authors.forename: Mehmet
authors.initials: M
authors.lastname: Ozaslan
authors.forename: Beyhan
authors.initials: B
authors.lastname: Cengiz
authors.forename: Mehmet Emin
authors.initials: ME
authors.lastname: Kalender
authors.forename: Ibrahim Halil
authors.initials: IH
authors.lastname: Kilic
authors.forename: Serdar
authors.initials: S
authors.lastname: Oztuzcu
authors.forename: Bulent
authors.initials: B
authors.lastname: Gogebakan
authors.forename: Abdullah Tuncay
authors.initials: AT
authors.lastname: Demiryurek
mesh_terms: D000328:Adult; D001943:Breast Neoplasms / Q000235:genetics* / Q000473:pathology; D016022:Case-Control Studies; D005260:Female; D005787:Gene Frequency / Q000235:genetics; D005838:Genotype; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D020687:cdc25 Phosphatases / Q000235:genetics*
chemical_list: C517004:CDC25A protein, human; D020687:cdc25 Phosphatases