title: The association of CYP2D6 *10 polymorphism with breast cancer risk and clinico-pathologic characteristics in Chinese women.
abstract: A relatively little is known of whether CYP2D6 *10 (188 C to T) polymorphism mediates susceptibility to breast cancer. In this study the CYP2D6 *10 polymorphism was detected in Chinese women (286 breast cancer patients and 305 healthy women) by a PCR-RFLP assay. We found that women with the 188T/T genotype displayed a slightly increased risk for breast cancer as compared with those with the 188C/C genotype (OR 1.36, CI 0.89-2.1), the association of the 188T/T genotype with breast cancer risk was more pronounced among postmenopausal women (OR 1.49, CI 0.8-2.76), but the association did not reach statistical significance. Furthermore, we found that patients carrying the 188T/T or T/C genotype were more likely to be a positive lymph node status than those with the 188C/C genotype (OR 2.12, CI 1.08-4.18, P = 0.019). Our results suggest that CYP2D6 *10 mutant 188T/T genotype displays a non-significant increased risk for breast cancer. Moreover, patients carrying 188T/T or T/C genotype might exhibit a more aggressive phenotype than those carrying 188C/C genotype, as the observation association of genotype with clinical outcome may be due to chance, therefore, further studies are required to confirm our present findings.
authors.affiliation: Breast Centre, Beijing Cancer Hospital, Peking University School of Oncology, Beijing, PR China.
authors.forename: Hongxia
authors.initials: H
authors.lastname: Li
authors.forename: Liya
authors.initials: L
authors.lastname: Feng
authors.forename: Ye
authors.initials: Y
authors.lastname: Xu
authors.forename: Lihua
authors.initials: L
authors.lastname: Yao
authors.forename: Tao
authors.initials: T
authors.lastname: Ouyang
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Li
authors.forename: Tianfeng
authors.initials: T
authors.lastname: Wang
authors.forename: Zhaoqing
authors.initials: Z
authors.lastname: Fan
authors.forename: Benyao
authors.initials: B
authors.lastname: Lin
authors.forename: Jiyou
authors.initials: J
authors.lastname: Li
authors.forename: Yuntao
authors.initials: Y
authors.lastname: Xie
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001943:Breast Neoplasms / Q000453:epidemiology / Q000235:genetics* / Q000473:pathology; D016022:Case-Control Studies; D002681:China / Q000453:epidemiology; D019389:Cytochrome P-450 CYP2D6 / Q000235:genetics*; D004247:DNA / Q000235:genetics / Q000302:isolation & purification; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005820:Genetic Testing; D005838:Genotype; D006801:Humans; D007150:Immunohistochemistry; D008875:Middle Aged; D010641:Phenotype; D016133:Polymerase Chain Reaction / Q000379:methods; D011110:Polymorphism, Genetic / Q000235:genetics*; D017698:Postmenopause; D015203:Reproducibility of Results; D012307:Risk Factors
chemical_list: D004247:DNA; D019389:Cytochrome P-450 CYP2D6