Genetic and expression analyses of the STOP ( MAP6) gene in schizophrenia

Accumulating evidence suggests that the pathologic lesions of schizophrenia may in part be due to the altered cytoskeletal architecture of neurons. Microtubule-associated proteins (MAPs) that bind to cytoskeletal microtubules to stabilize their assembly are prominently expressed in neurons. Of the M...

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Veröffentlicht in:Schizophrenia research 2006-06, Vol.84 (2), p.244-252
Hauptverfasser: Shimizu, Hiromitsu, Iwayama, Yoshimi, Yamada, Kazuo, Toyota, Tomoko, Minabe, Yoshio, Nakamura, Kauhiko, Nakajima, Mizuho, Hattori, Eiji, Mori, Norio, Osumi, Noriko, Yoshikawa, Takeo
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container_end_page 252
container_issue 2
container_start_page 244
container_title Schizophrenia research
container_volume 84
creator Shimizu, Hiromitsu
Iwayama, Yoshimi
Yamada, Kazuo
Toyota, Tomoko
Minabe, Yoshio
Nakamura, Kauhiko
Nakajima, Mizuho
Hattori, Eiji
Mori, Norio
Osumi, Noriko
Yoshikawa, Takeo
description Accumulating evidence suggests that the pathologic lesions of schizophrenia may in part be due to the altered cytoskeletal architecture of neurons. Microtubule-associated proteins (MAPs) that bind to cytoskeletal microtubules to stabilize their assembly are prominently expressed in neurons. Of the MAPs, MAP6 (STOP) has a particular relevance to schizophrenia pathology, since mice deficient in the gene display neuroleptic-responsive behavioral defects. Here we examined the genetic contribution of MAP6 to schizophrenia in a case ( n = 570) –control ( n = 570) study, using dense single nucleotide polymorphism (SNP) markers. We detected nominal allelic ( p = 0.0291) and haplotypic (global p = 0.0343 for 2 SNP-window, global p = 0.0138 for 3 SNP-window) associations between the 3′ genomic interval of the gene and schizophrenia. MAP6 transcripts are expressed as two isoforms. A postmortem brain expression study showed up-regulation of mRNA isoform 2 in the prefrontal cortex (Brodmann's area 46) of patients with schizophrenia. These data suggest that the contribution of MAP6 to the processes that lead to schizophrenia should be further investigated.
doi_str_mv 10.1016/j.schres.2006.03.017
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subjects Adult
Adult and adolescent clinical studies
Biological and medical sciences
Brain - pathology
Case-Control Studies
Cytoskeleton
Female
Gene Expression
Gene Frequency
Genotype
Haplotype
Haplotypes
Humans
Isoform
Male
Medical sciences
Microtubule-associated protein
Microtubule-Associated Proteins - genetics
Middle Aged
Polymorphism, Single Nucleotide
Postmortem brain
Protein Isoforms
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Psychoses
Reverse Transcriptase Polymerase Chain Reaction
RNA, Messenger
Schizophrenia
Schizophrenia - genetics
Schizophrenia - pathology
title Genetic and expression analyses of the STOP ( MAP6) gene in schizophrenia
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