title: Genome-wide quantitative trait loci mapping of the human cerebrospinal fluid proteome.
abstract: Cerebrospinal fluid (CSF) is virtually the only one accessible source of proteins derived from the central nervous system (CNS) of living humans and possibly reflects the pathophysiology of a variety of neuropsychiatric diseases. However, little is known regarding the genetic basis of variation in protein levels of human CSF. We examined CSF levels of 1,126 proteins in 133 subjects and performed a genome-wide association analysis of 514,227 single nucleotide polymorphisms (SNPs) to detect protein quantitative trait loci (pQTLs). To be conservative, Spearman's correlation was used to identify an association between genotypes of SNPs and protein levels. A total of 421 cis and 25 trans SNP-protein pairs were significantly correlated at a false discovery rate (FDR) of less than 0.01 (nominal P < 7.66 × 10-9). Cis-only analysis revealed additional 580 SNP-protein pairs with FDR < 0.01 (nominal P < 2.13 × 10-5). pQTL SNPs were more likely, compared to non-pQTL SNPs, to be a disease/trait-associated variants identified by previous genome-wide association studies. The present findings suggest that genetic variations play an important role in the regulation of protein expression in the CNS. The obtained database may serve as a valuable resource to understand the genetic bases for CNS protein expression pattern in humans.
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.|Department of Psychiatry, Shinshu University School of Medicine, Matsumoto, Nagano, Japan.
authors.forename: Daimei
authors.initials: D
authors.lastname: Sasayama
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.|Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
authors.forename: Kotaro
authors.initials: K
authors.lastname: Hattori
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.
authors.forename: Shintaro
authors.initials: S
authors.lastname: Ogawa
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.|Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
authors.forename: Yuuki
authors.initials: Y
authors.lastname: Yokota
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.|Translational Medical Center, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Matsumura
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.
authors.forename: Toshiya
authors.initials: T
authors.lastname: Teraishi
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Hori
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.
authors.forename: Miho
authors.initials: M
authors.lastname: Ota
authors.affiliation: Department of Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
authors.forename: Sumiko
authors.initials: S
authors.lastname: Yoshida
authors.affiliation: Department of Mental Disorder Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Ogawahigashi, Kodaira, Tokyo, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kunugi
mesh_terms: D015415:Biomarkers / Q000134:cerebrospinal fluid*; D015894:Genome, Human; D055106:Genome-Wide Association Study; D006801:Humans; D001523:Mental Disorders / Q000134:cerebrospinal fluid / Q000235:genetics* / Q000473:pathology; D010641:Phenotype; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D040081:Protein Array Analysis; D020543:Proteome / Q000235:genetics*; D040901:Proteomics / Q000379:methods; D040641:Quantitative Trait Loci / Q000235:genetics*
chemical_list: D015415:Biomarkers; D020543:Proteome