Common variation at 6q16 within HACE1 and LIN28B influences susceptibility to neuroblastoma

Abstract

Neuroblastoma is a cancer of the sympathetic nervous system that accounts for approximately 10% of all pediatric oncology deaths ¹ . Here we report on a genome-wide association study of 2,817 neuroblastoma cases and 7,473 controls. We identified two new associations at 6q16, the first within HACE1 (rs4336470; combined P = 2.7 × 10 ⁻¹¹, odds ratio 1.26, 95% CI: 1.18–1.35) and the second within LIN28B (rs17065417; combined P = 1.2 × 10 ⁻⁸, odds ratio 1.38, 95% CI: 1.23–1.54). Expression of LIN28B and let-7 miRNA correlated with rs17065417 genotype in neuroblastoma cell lines, and we observed significant growth inhibition upon depletion of LIN28B specifically in neuroblastoma cells homozygous for the risk allele. Low HACE1 and high LIN28B expression in diagnostic primary neuroblastomas were associated with worse overall survival ( P = 0.008 and 0.014, respectively). Taken together, we show that common variants in HACE1 and LIN28B influence neuroblastoma susceptibility and that both genes likely play a role in disease progression.