Abstract
Breast cancer risk is strongly associated with an intergenic region on 11q13. We have previously shown that the strongest risk-associated SNPs fall within a distal enhancer that regulates CCND1. Here, we report that, in addition to regulating CCND1, this enhancer regulates two estrogen-regulated long noncoding RNAs, CUPID1 and CUPID2. We provide evidence that the risk-associated SNPs are associated with reduced chromatin looping between the enhancer and the CUPID1 and CUPID2 bidirectional promoter. We further show that CUPID1 and CUPID2 are predominantly expressed in hormone-receptor-positive breast tumors and play a role in modulating pathway choice for the repair of double-strand breaks. These data reveal a mechanism for the involvement of this region in breast cancer.
| Original language | English |
|---|---|
| Pages (from-to) | 255-266 |
| Number of pages | 12 |
| Journal | American Journal of Human Genetics |
| Volume | 101 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 3 Aug 2017 |
| Externally published | Yes |
Keywords
- 11q13
- DNA repair
- GWAS
- breast cancer
- enhancer
- long noncoding RNAs