对非编码和编码de novo变体的多方面的分析表明,在中国人群中,Fallot四分法中的NOTCH信号通路涉及到中国人群中的Fallot四分法
Qiongfen Lin1, Detao Zhang1, Peter J Gruber2
1Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
HGG advances
|February 8, 2025
概括
非编码变体对中国新生儿的Fallot四分法 (TOF) 有显著的贡献,影响心脏发育途径,如NOTCH信号传递. 这突显了TOF病因学的遗传异质性.
科学领域:
- 遗传学 是一个遗传学.
- 心脏病学 心脏病学
- 发展生物学 发展生物学
背景情况:
- 费洛特四重症 (TOF) 是新生儿中最常见的蓝色心脏缺陷.
- 遗传因素与TOF有关,但非编码变异的作用在很大程度上是未知的.
研究的目的:
- 调查非编码新变体 (NC DNVs) 在中国人群中对Fallot四分法 (TOF) 的贡献.
- 识别受影响的发育途径和TOF中的信号.
主要方法:
- 在141个中国非综合征TOF三组中检测和分析NC DNV.
- 结果与儿科心脏基因组学联盟 (PCGC) 队列进行了比较.
- 对编码和非编码DNV进行生物信息分析,重点关注NOTCH信号和心脏发育途径.
主要成果:
- 与PCGC队列相比,在中国TOF患者中观察到更高的破坏性NC DNVs负担.
- NC DNV与心肌细胞分化有关,而编码DNV影响了腔室,门和大动脉发育.
- 在受影响的途径中,NOTCH信号和流出管道形态发生显著丰富.
结论:
- 非编码的de novo变异在TOF的病因学中起着重要作用,特别是在中国人群中.
- 受到编码和非编码变体影响的NOTCH信号的调节失调与TOF病变产生有关.
- 研究结果表明,在Fallot的四分法中,特定于种群的遗传异质性.
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