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. 2015 Jun 16:6:7247.
doi: 10.1038/ncomms8247.

Genome-wide association study of corticobasal degeneration identifies risk variants shared with progressive supranuclear palsy

Affiliations

Genome-wide association study of corticobasal degeneration identifies risk variants shared with progressive supranuclear palsy

Naomi Kouri et al. Nat Commun. .

Abstract

Corticobasal degeneration (CBD) is a neurodegenerative disorder affecting movement and cognition, definitively diagnosed only at autopsy. Here, we conduct a genome-wide association study (GWAS) in CBD cases (n=152) and 3,311 controls, and 67 CBD cases and 439 controls in a replication stage. Associations with meta-analysis were 17q21 at MAPT (P=1.42 × 10(-12)), 8p12 at lnc-KIF13B-1, a long non-coding RNA (rs643472; P=3.41 × 10(-8)), and 2p22 at SOS1 (rs963731; P=1.76 × 10(-7)). Testing for association of CBD with top progressive supranuclear palsy (PSP) GWAS single-nucleotide polymorphisms (SNPs) identified associations at MOBP (3p22; rs1768208; P=2.07 × 10(-7)) and MAPT H1c (17q21; rs242557; P=7.91 × 10(-6)). We previously reported SNP/transcript level associations with rs8070723/MAPT, rs242557/MAPT, and rs1768208/MOBP and herein identified association with rs963731/SOS1. We identify new CBD susceptibility loci and show that CBD and PSP share a genetic risk factor other than MAPT at 3p22 MOBP (myelin-associated oligodendrocyte basic protein).

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Conflict of interest statement

Dr Trojanowski may accrue revenue in the future on patents submitted by the University of Pennsylvania wherein he is the co-inventor and he received revenue from the sale of Avid to Eli Lily as co-inventor on imaging-related patents submitted by the University of Pennsylvania. He receives research support from the NIH, GSK, Janssen and several non-profits.

Figures

Figure 1
Figure 1. Regional association plots.
(ad) Top loci associated with CBD compared with controls in the Discovery Stage (152 CBD, 3,311 controls) and the Replication Stage (67 CBD, 457 controls). The most significant association is at 17q21, tagging the 1.2 Mb inversion containing MAPT (a). New susceptibility loci for CBD are located at 8p12 (b), 3p22 (c) and 2p22 (d). Genetic association testing was performed using conditional logistic regression analysis under an additive model and corrected for population substructure using the first principal component from multidimensional scaling analysis (MDS) as a covariate (λ=1.01). The y axis is −log10 P values and x axis is the genomic location of each SNP (circles) genotyped and imputed. Linkage disequilibrium coefficients were derived from hg19 (1,000 Genomes March 2012, European population) and local estimates of recombination rates are from HapMap samples (2008–03_rel22_B36; http://hapmap.ncbi.nlm.nih.gov). The random effects meta-analysis top SNP at each locus (purple diamonds).

References

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