出生体重和皮质结构之间的关联和共享的生物学基础
Lu Zhang1,2, Qiaoyue Ge1, Zeyuan Sun3,4
1Department of Maternal and Child Health, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.
Translational psychiatry
|March 5, 2025
概括
较高的出生体重与较大的皮质结构有关,包括折叠和体积. 共同的遗传和细胞通路,涉及特定的基因和脑细胞类型,是这些早期生命生长对大脑发育的影响的基础.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 发展生物学 发展生物学
背景情况:
- 出生体重和皮质结构之间的关联是已知的,但尚未完全理解.
- 关联早期生长与大脑发育的基础生物机制需要进一步阐明.
研究的目的:
- 调查出生体重与皮质结构现象型之间的关联.
- 确定这些关联的共同遗传,蛋白质和细胞基础.
主要方法:
- 使用了全基因组关联研究 (GWAS) 和孟德尔随机化 (MR) 分析.
- 用全转录组关联研究 (TWAS),全蛋白质组关联研究 (PWAS) 和基于摘要的MR (SMR) 来识别共享的基因和蛋白质.
- 复杂特征的细胞类型表达特异整合 (CELLECT) 分析探索了丰富的细胞类型.
主要成果:
- MR证实出生体重与全球皮质折叠,局部化,表面积和体积之间的积极关联.
- TWAS/SMR确定了三种基因 (CNNM2,RABGAP1,CENPW),PWAS/SMR确定了四种蛋白质 (CNNM2,RAB7L1,RAB5B,PPA2),这些蛋白质与出生体重和皮质结构有关.
- 细胞分析突出表现出皮细胞,GABAergic神经元和脑血管细胞作为出生体重的丰富细胞类型.
结论:
- 生命早期的成长显著影响皮质结构.
- 共享的转录基因,蛋白质基因和细胞路径是出生体重和大脑发育之间的关系的基础.
- 已发现的基因和细胞类型为未来对皮层发育机制的研究提供了潜在的目标.
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