TY - JOUR
T1 - A prostate cancer susceptibility allele at 6q22 increases RFX6 expression by modulating HOXB13 chromatin binding
AU - Huang, Qilai
AU - Whitington, Thomas
AU - Gao, Ping
AU - Lindberg, Johan F.
AU - Yang, Yuehong
AU - Sun, Jielin
AU - Väisänen, Marja-Riitta
AU - Szulkin, Robert
AU - Annala, Matti
AU - Yan, Jian
AU - Egevad, Lars A.
AU - Zhang, Kai
AU - Lin, Ruizhu
AU - Jolma, Arttu
AU - Nykter, Matti
AU - Manninen, Aki
AU - Wiklund, Fredrik
AU - Vaarala, Markku H.
AU - Visakorpi, Tapio
AU - Xu, Jianfeng
AU - Taipale, Jussi
AU - Wei, Gong-Hong
PY - 2014/2
Y1 - 2014/2
N2 - Genome-wide association studies have identified thousands of SNPs associated with predisposition to various diseases, including prostate cancer. However, the mechanistic roles of these SNPs remain poorly defined, particularly for noncoding polymorphisms. Here we find that the prostate cancer risk-associated SNP rs339331 at 6q22 lies within a functional HOXB13-binding site. The risk-associated T allele at rs339331 increases binding of HOXB13 to a transcriptional enhancer, conferring allele-specific upregulation of the rs339331-associated gene RFX6. Suppression of RFX6 diminishes prostate cancer cell proliferation, migration and invasion. Clinical data indicate that RFX6 upregulation in human prostate cancers correlates with tumor progression, metastasis and risk of biochemical relapse. Finally, we observe a significant association between the risk-associated T allele at rs339331 and increased RFX6 mRNA levels in human prostate tumors. Together, our results suggest that rs339331 affects prostate cancer risk by altering RFX6 expression through a functional interaction with the prostate cancer susceptibility gene HOXB13.
AB - Genome-wide association studies have identified thousands of SNPs associated with predisposition to various diseases, including prostate cancer. However, the mechanistic roles of these SNPs remain poorly defined, particularly for noncoding polymorphisms. Here we find that the prostate cancer risk-associated SNP rs339331 at 6q22 lies within a functional HOXB13-binding site. The risk-associated T allele at rs339331 increases binding of HOXB13 to a transcriptional enhancer, conferring allele-specific upregulation of the rs339331-associated gene RFX6. Suppression of RFX6 diminishes prostate cancer cell proliferation, migration and invasion. Clinical data indicate that RFX6 upregulation in human prostate cancers correlates with tumor progression, metastasis and risk of biochemical relapse. Finally, we observe a significant association between the risk-associated T allele at rs339331 and increased RFX6 mRNA levels in human prostate tumors. Together, our results suggest that rs339331 affects prostate cancer risk by altering RFX6 expression through a functional interaction with the prostate cancer susceptibility gene HOXB13.
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U2 - 10.1038/ng.2862
DO - 10.1038/ng.2862
M3 - RGC 21 - Publication in refereed journal
C2 - 24390282
SN - 1061-4036
VL - 46
SP - 126
EP - 135
JO - Nature Genetics
JF - Nature Genetics
IS - 2
ER -