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使用人类诱导的多能干细胞建模精神分裂症.

Kristen J Brennand1, Anthony Simone, Jessica Jou

  • 1Salk Institute for Biological Studies, Laboratory of Genetics, 10010 North Torrey Pines Road, La Jolla California 92037, USA.

Nature
|April 15, 2011
PubMed
概括
此摘要是机器生成的。

研究人员将患者细胞重新编程为神经元,以研究精神分裂症 (SCZD). 他们发现SCZD神经元的连接性受损,并确定了分子变化,为这种复杂的遗传精神疾病提供了新的见解.

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科学领域:

  • 神经科学是一个神经科学.
  • 遗传学 遗传学 是一个
  • 干细胞生物学 干细胞生物学

背景情况:

  • 精神分裂症 (SCZD) 在全球影响1%,具有很高的遗传性 (80-85%).
  • 之前的研究表明,SCZD中大脑体积减少和神经递质活性改变.
  • 在SCZD的细胞和分子缺陷仍然不太了解.

研究的目的:

  • 为了研究精神分裂症的细胞和分子缺陷.
  • 使用患者衍生的诱导多能干细胞 (hiPSCs) 建模SCZD.

主要方法:

  • 将SCZD患者的纤维细胞直接重新编程为hiPSCs.
  • 将SCZD hiPSCs分化为神经元.
  • 分析神经元连接,基因表达和蛋白质水平.
  • 用抗精神病药物洛克萨治疗SCZD神经元.

主要成果:

  • 由SCZD hiPSC衍生的神经元表现出神经元连接性降低,神经元数量减少,PSD95和谷氨酸受体表达减少.
  • 基因表达简介揭示了循环AMP和WNT信号通路的改变.
  • 洛沙治疗改善了关键的细胞和分子SCZD表型.

结论:

  • 人类诱导的多能干细胞衍生神经元显示与精神分裂症相关的表型和基因表达变化.
  • 这项研究为研究SCZD等复杂遗传精神疾病提供了一个模型.
  • 研究结果表明,在已识别的信号通路内,存在潜在的治疗点.