Abstract:
:Trinucleotide repeat-containing 9 (TNRC9), a high mobility group chromatin-associated protein, has been implicated in breast cancer metastasis to the bone. Recently, several single nucleotide polymorphisms (SNPs) of TNRC9 were identified as novel breast cancer susceptibility loci by whole genome association studies, especially in estrogen receptor (ER) positive tumors. In the present case-control study of 1,049 breast cancer patients and 1,073 cancer-free controls in a Chinese population, we genotyped three polymorphisms (rs3803662C/T, rs12443621A/G, and rs8051542C/T) of the TNRC9 gene using the SNPstream 12-plex platform to test the hypothesis that these SNPs are associated with breast cancer risk in this population. None of the three polymorphisms was significantly associated with breast cancer risk in the whole data set (P = 0.151, 0.644, and 0.737 for rs3803662, rs12443621. and rs8051542, respectively). However, rs12443621 AG/GG genotypes were significantly associated with increased risk of ER positive breast cancer (OR = 1.38, 95% CI = 1.01-1.88), compared with homozygote AA. In addition, a borderline significantly increased risk was also observed for the variant genotypes (CT/TT) of rs8051542 C/T compared with the wild-type genotype (CC) (adjusted OR = 1.26, 95% CI = 0.99-1.60). Interestingly, a significant interaction was detected between rs12443621A/G and ER status on breast cancer risk in a case-only analysis (P for interaction = 0.004). These findings suggest that genetic variants of TNRC9 may contribute to the development of ER positive breast cancer.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Liang J,Chen P,Hu Z,Shen H,Wang F,Chen L,Li M,Tang J,Wang H,Shen Hdoi
10.1007/s10549-010-0809-zsubject
Has Abstractpub_date
2010-11-01 00:00:00pages
237-41issue
1eissn
0167-6806issn
1573-7217journal_volume
124pub_type
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