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MEF2C的直接标被丰富为与精神分裂症和认知功能相关的基因,并参与神经元发育和线粒体功能
Deema Ali1,2, Aodán Laighneach1,2, Emma Corley1,3
1Centre for Neuroimaging, Cognition and Genomics (NICOG), University of Galway, Ireland.
PLoS genetics
|September 11, 2024
概括
肌细胞增强因子2C (MEF2C) 的破坏会影响神经发生和认知. 失调的MEF2C目标基因与自闭症谱系障碍 (ASD),精神分裂症 (SCZ) 和线粒体功能障碍有关,揭示了这些神经发育障碍的洞察力.
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:
- 肌细胞增强因子2C (MEF2C) 是一种转录因子,对神经发生和突触发育至关重要.
- 在MEF2C的遗传变异与认知能力和神经精神疾病,如自闭症谱系障碍 (ASD) 和精神分裂症 (SCZ) 相关.
研究的目的:
- 通过人类神经干细胞 (NSC) 和诱导神经元 (iN) 来研究MEF2C在神经发育表型中的作用.
- 确定MEF2C的直接向基因及其与ASD,SCZ和认知功能相关的相关性.
主要方法:
- 在MEF2C功能受损的人类NSC和IN上利用RNA测序 (RNA-seq).
- 集成的RNA-seq数据与MEF2C染色体免疫沉测序 (ChIP-seq) 识别直接目标.
- 分析了基因组丰富的遗传性和与认知特征和神经发育障碍相关的de novo突变.
主要成果:
- 鉴定出失调的MEF2C直接标基因组,这些基因组因智力遗传性,教育程度和SCZ风险而丰富.
- 在ASD和发育障碍中发现这些基因组在具有罕见de novo突变的基因中的丰富.
- 观察到MEF2C中的智商相关SNP对BNIP3L表达的trans eQTL效应,这是一种SCZ风险基因,涉及线粒细胞衰变.
结论:
- 干扰MEF2C对神经元发育和线粒体功能至关重要的基因网络产生失调.
- 这些发现涉及MEF2C介导的途径在认知缺陷和神经精神疾病的病因学.
- 在调节参与神经元发育和线粒体过程的基因方面,MEF2C的作用对大脑功能至关重要.
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