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ABSTRACT: Background
Genome-wide association studies (GWASs) have enriched the fields of genomics and drug development. Adrenocortical carcinoma (ACC) is a rare cancer with a bimodal age distribution and inadequate treatment options. Paediatric ACC is frequently associated with TP53 mutations, with particularly high incidence in Southern Brazil due to the TP53 p.R337H (R337H) germline mutation. The heterogeneous risk among carriers suggests other genetic modifiers could exist.Methods
We analysed clinical, genotype and gene expression data derived from paediatric ACC, R337H carriers, and adult ACC patients. We restricted our analyses to single nucleotide polymorphisms (SNPs) previously identified in GWASs to associate with disease or human traits.Results
A SNP, rs971074, in the alcohol dehydrogenase 7 gene significantly and reproducibly associated with allelic differences in ACC age-of-onset in both cohorts. Patients homozygous for the minor allele were diagnosed up to 16 years earlier. This SNP resides in a gene involved in the retinoic acid (RA) pathway and patients with differing levels of RA pathway gene expression in their tumours associate with differential ACC progression.Conclusions
These results identify a novel genetic component to ACC development that resides in the retinoic acid pathway, thereby informing strategies to develop management, preventive and therapeutic treatments for ACC.
SUBMITTER: Surakhy M
PROVIDER: S-EPMC7156685 | biostudies-literature | 2020 Apr
REPOSITORIES: biostudies-literature
Surakhy Mirvat M Wallace Marsha M Bond Elisabeth E Grochola Lukasz Filip LF Perez Husein H Di Giovannantonio Matteo M Zhang Ping P Malkin David D Carter Hannah H Parise Ivy Zortea S IZS Zambetti Gerard G Komechen Heloisa H Paraizo Mariana M MM Pagadala Meghana S MS Pinto Emilia M EM Lalli Enzo E Figueiredo Bonald C BC Bond Gareth L GL
British journal of cancer 20200309 8
<h4>Background</h4>Genome-wide association studies (GWASs) have enriched the fields of genomics and drug development. Adrenocortical carcinoma (ACC) is a rare cancer with a bimodal age distribution and inadequate treatment options. Paediatric ACC is frequently associated with TP53 mutations, with particularly high incidence in Southern Brazil due to the TP53 p.R337H (R337H) germline mutation. The heterogeneous risk among carriers suggests other genetic modifiers could exist.<h4>Methods</h4>We an ...[more]