WNT16 Influences Bone Mineral Density, Cortical Bone Thickness, Bone Strength, and Osteoporotic Fracture Risk

Hou-Feng Zheng, Jon H Tobias, Emma Duncan, Martin Evans, Joel Eriksson, Lavinia Paternoster, Laura M Yerges-Armstrong, Terho Lehtimäki, Ulrica Bergström, Mika Kähönen, Paul J Leo, Olli Raitakari, Marika Laaksonen, Geoffrey C Nicholson, Jorma Viikari, Martin Ladouceur, Leo-Pekka Lyytikäinen, Carolina Medina-Gomez, Fernando Rivadeneira, Richard L Prince, Harri Sievanen, William D Leslie, Dan Mellström, John A Eisman, Sofia Movérare-Skrtic, David Goltzman, David A Hanley, Graeme Jones, Beate St. Pourcain, Yongjun Xiao, Nicholas J Timpson, George Davey Smith, Ian R Reid, Susan M Ring, Philip N Sambrook, Magnus Karlsson, Elaine M Dennison, John P Kemp, Patrick Danoy, Adrian Sayers, Scott G Wilson, Maria Nethander, Eugene McCloskey, Liesbeth Vandenput, Richard Eastell, Jeff Liu, Tim Spector, Braxton D Mitchell, Elizabeth A Streeten, Robert Brommage, Ulrika Pettersson-Kymmer, Matthew A Brown, Claes Ohlsson, J Brent Richards and Mattias Lorentzon

PLOS Genetics, 2012, vol. 8, issue 7, 1-13

Abstract: We aimed to identify genetic variants associated with cortical bone thickness (CBT) and bone mineral density (BMD) by performing two separate genome-wide association study (GWAS) meta-analyses for CBT in 3 cohorts comprising 5,878 European subjects and for BMD in 5 cohorts comprising 5,672 individuals. We then assessed selected single-nucleotide polymorphisms (SNPs) for osteoporotic fracture in 2,023 cases and 3,740 controls. Association with CBT and forearm BMD was tested for ∼2.5 million SNPs in each cohort separately, and results were meta-analyzed using fixed effect meta-analysis. We identified a missense SNP (Thr>Ile; rs2707466) located in the WNT16 gene (7q31), associated with CBT (effect size of −0.11 standard deviations [SD] per C allele, P = 6.2×10−9). This SNP, as well as another nonsynonymous SNP rs2908004 (Gly>Arg), also had genome-wide significant association with forearm BMD (−0.14 SD per C allele, P = 2.3×10−12, and −0.16 SD per G allele, P = 1.2×10−15, respectively). Four genome-wide significant SNPs arising from BMD meta-analysis were tested for association with forearm fracture. SNP rs7776725 in FAM3C, a gene adjacent to WNT16, was associated with a genome-wide significant increased risk of forearm fracture (OR = 1.33, P = 7.3×10−9), with genome-wide suggestive signals from the two missense variants in WNT16 (rs2908004: OR = 1.22, P = 4.9×10−6 and rs2707466: OR = 1.22, P = 7.2×10−6). We next generated a homozygous mouse with targeted disruption of Wnt16. Female Wnt16−/− mice had 27% (P

Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pgen00:1002745

DOI: 10.1371/journal.pgen.1002745

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