对人类皮质结构相关变异的基因调节活性进行大规模并行评估
Nana Matoba1,2, Jessica C McAfee1,2, Oleh Krupa1,2
1Department of Genetics, University of North Carolina at Chapel Hill; Chapel Hill, NC, USA.
bioRxiv : the preprint server for biology
|February 20, 2025
概括
研究人员通过在神经细胞中测试它们的调节活动,确定了918种影响人类大脑结构的DNA变异. 超过一半的人表现出基效应,揭示了皮层发育和扩张背后的机制.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 数以百计的非编码基因位置与人类皮质结构差异有关.
- 影响皮质结构的特定调节变异在很大程度上是未知的.
研究的目的:
- 识别与人类皮质结构相关的具有调节潜力的遗传变异.
- 研究Wnt刺激对这些变体的调控活性的影响.
主要方法:
- 使用大规模并行记者测试 (MPRA) 来测试9,092个DNA变异.
- 在基线和Wnt刺激条件下,在人类神经前体细胞中测试了调节活性.
主要成果:
- 从150个位点中确定了918个具有调节潜力的变体 (76%的研究).
- 超过50%的活跃变体表现出基效应.
- 在条件依赖增强剂中,Wnt刺激调节了调控活性.
- 元素显著诱导了调节活动,可能有助于皮质扩张.
结论:
- MPRA成功地确定了影响人类皮质结构的监管变异.
- 基效应和条件依赖的增强剂在皮层发育中起作用.
- 元素和转录因子调节是导致皮层结构变化的关键分子机制.
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