Novel Candidate gene analysis using the genome of Monozygotic twin discordant for Schizophrenia

使用精神分裂症不和谐同卵双胞胎的基因组进行新的候选基因分析

基本信息

  • 批准号:
    17591208
  • 负责人:
  • 金额:
    $ 2.24万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2005
  • 资助国家:
    日本
  • 起止时间:
    2005 至 2006
  • 项目状态:
    已结题

项目摘要

Paternally transmitted ε-sarcoglycan (SGCE) gene variants cause myoclonus-dystonia syndrome (MDS). SGCE is a candidate for roles in schizophrenia because a) MDS patients can show prominent psychiatric abnormalities and b) SGCE is localized to a Chr 7q21.3 region implicated in schizophrenia in several previous genome scans. We screened SGCE for missense and promoter variants. We did not detect any SNPs in the coding region and are still screening the promoter region through 16 schizophrenia trios by direct DNA sequencing. It may turn out that SGCE may be a highly conserved gene. Sixteen-locus transmission/disequilibrium testing (TDT) performed in 114 schizophrenia trio pedigrees revealed significant association between schizophrenia and markers defining a 100 kb haplotype block that includes the SGCE gene (p < 0.005). TDT tests for at some markers were positive in maternally-and some in paternally-inherited models. We evaluated the effects of SGCE haplotypes on expression to determine whether this gene or surrounding genes in this haplotype block harbor variants that contribute to susceptibility to schizophrenia. We examined the expression of SGCE gene in lymphoblasts of GATA allele 5 donors who have the same genotype and obtained evidence that the SGCE gene expression may be influenced by the polymorphic GATA repeat, specifically allele 5. These data were from single schizophrenia patient allele 5 transmitted from father that showed a 1.30-1.45 fold increase compared to that of GATA allele 5 donors from mother. This result supports my hypothesis that GATA allele 5 from father has a key role to maternal imprinting and that over expression of SGCE gene might be associated with schizophrenia.
父系传播的 ε-肌聚糖 (SGCE) 基因变异会导致肌阵挛肌张力障碍综合征 (MDS)。 SGCE 是在精神分裂症中发挥作用的候选者,因为 a) MDS 患者可以表现出显着的精神异常,b) SGCE 位于与精神分裂症有关的 Chr 7q21.3 区域,在之前的几次基因组扫描中。我们筛选了 SGCE 的错义和启动子变体。我们没有在编码区检测到任何 SNP,并且仍在通过直接 DNA 测序从 16 个精神分裂症三人组中筛选启动子区。事实证明,SGCE 可能是一个高度保守的基因。对 114 个精神分裂症三人组家系进行的十六位点传递/不平衡测试 (TDT) 揭示了精神分裂症与定义包含 SGCE 基因的 100 kb 单倍型块的标记之间存在显着关联 (p < 0.005)。一些标记物的 TDT 测试在母系遗传模型中呈阳性,而在父系遗传模型中则有一些标记物呈阳性。我们评估了 SGCE 单倍型对表达的影响,以确定该单倍型中的该基因或周围基因是否含有导致精神分裂症易感性的变异。我们检查了具有相同基因型的 GATA 等位基因 5 供体的淋巴母细胞中 SGCE 基因的表达,并获得了证据表明 SGCE 基因表达可能受到多态性 GATA 重复,特别是等位基因 5 的影响。这些数据来自从父亲遗传的单个精神分裂症患者等位基因 5,与来自母亲的 GATA 等位基因 5 供体相比,等位基因 5 增加了 1.30-1.45 倍。这一结果支持了我的假设,即来自父亲的 GATA 等位基因 5 对母性印记起着关键作用,并且 SGCE 基因的过度表达可能与精神分裂症有关。

项目成果

期刊论文数量(12)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Analysis of the associations between the genes of 22q11 deletion syndrome and schizophrenia.
22q11缺失综合征基因与精神分裂症的关联分析
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Kenji Nakamura;Wakana Ohya;Hiroshi Funakoshi;Gaku Sakaguchi;Akira Kato;Masatoshi Takeda;Takashi Kudo;Toshikazu Nakamura;Arinami T et al.
  • 通讯作者:
    Arinami T et al.
A Polynorphism in the PDLIM5 Gene Associated with Gene Expression and Schizophrenia
PDLIM5 基因的多态性与基因表达和精神分裂症相关
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Kondo M;et al;Horiuchi Y et al.
  • 通讯作者:
    Horiuchi Y et al.
Monoallelic and unequal allelic expression of the HTR2A gene in human brain and peripheral lymphocytes
  • DOI:
    10.1016/j.biopsych.2006.06.024
  • 发表时间:
    2006-12-15
  • 期刊:
  • 影响因子:
    10.6
  • 作者:
    Fukuda, Yoshiko;Koga, Minori;Arinami, Tadao
  • 通讯作者:
    Arinami, Tadao
Genomewide high-density SNP linkage analysis of 236 Japanese families supports the existence of schizophrenia susceptibility loci on chromosomes 1p, 14q, and 20p
  • DOI:
    10.1086/498122
  • 发表时间:
    2005-12-01
  • 期刊:
  • 影响因子:
    9.8
  • 作者:
    Arinami, T;Arinami, T;Okazaki, Y
  • 通讯作者:
    Okazaki, Y
Failure to confirm the association between the FEZ1 gene and schizophrenia in a Japanese population
  • DOI:
    10.1016/j.neulet.2007.02.055
  • 发表时间:
    2007-05-07
  • 期刊:
  • 影响因子:
    2.5
  • 作者:
    Koga, Minori;Ishiguro, Hiroki;Arinami, Tadao
  • 通讯作者:
    Arinami, Tadao
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