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Deciphering the 8q24.21 association for glioma.
Hum. Mol. Genet. 22, 2293-2302 (2013)
We have previously identified tagSNPs at 8q24.21 influencing glioma risk. We have sought to fine-map the location of the functional basis of this association using data from four genome-wide association studies, comprising a total of 4147 glioma cases and 7435 controls. To improve marker density across the 700 kb region, we imputed genotypes using 1000 Genomes Project data and high-coverage sequencing data generated on 253 individuals. Analysis revealed an imputed low-frequency SNP rs55705857 (P = 2.24 x 10(-38)) which was sufficient to fully capture the 8q24.21 association. Analysis by glioma subtype showed the association with rs55705857 confined to non-glioblastoma multiforme (non-GBM) tumours (P = 1.07 x 10(-67)). Validation of the non-GBM association was shown in three additional datasets (625 non-GBM cases, 2412 controls; P = 1.41 x 10(-28)). In the pooled analysis, the odds ratio for low-grade glioma associated with rs55705857 was 4.3 (P = 2.31 x 10(-94)). rs55705857 maps to a highly evolutionarily conserved sequence within the long non-coding RNA CCDC26 raising the possibility of direct functionality. These data provide additional insights into the aetiological basis of glioma development.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
GENOME-WIDE ASSOCIATION; RISK; POPULATION; EXPRESSION; CANCER; TUMORS; PROFILES; KORA
ISSN (print) / ISBN
0964-6906
e-ISSN
1460-2083
Journal
Human Molecular Genetics
Quellenangaben
Volume: 22,
Issue: 11,
Pages: 2293-2302
Publisher
Oxford University Press
Reviewing status
Peer reviewed
Institute(s)
Institute of Genetic Epidemiology (IGE)
Institute of Epidemiology (EPI)
Institute of Epidemiology (EPI)