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评估双 OGDHL 变体与显著的表型异质性相关性的关系

Sheng-Jia Lin¹, Barbara Vona^2,3,4,5, Tracy Lau⁶

¹Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA.

Genome medicine

|November 30, 2023

概括

在OGDHL的遗传变异与神经系统疾病有关,但这项研究质疑由于复杂的遗传和功能冗余的直接基因疾病联系. 需要进一步的研究来澄清OGDHL.

科学领域:

遗传学是一个遗传学.
神经发育障碍神经发育障碍
分子生物学分子生物学

背景情况:

在OGDHL中双变异与异质的神经和神经发育障碍有关.
需要进一步确认OGDHL基因疾病关联的有效性.
研究了一组新的OGDHL患者队列,以评估基因与疾病的关系.

研究的目的:

调查OGDHL及其变体的基因疾病关系.
通过功能性研究评估OGDHL变异的致病性.
探索OGDHL的复杂遗传模式和功能冗余.

主要方法:

大型多民族测序数据集的基因型首次查,以发现双基OGDHL变异.
CRISPR/Cas9斑马鱼淘汰模型用于ogdhl,ogdh对应物和dhtkd1.
在斑马鱼模型中使用患者变异转录的功能补充测试.

主要成果:

14个个体的队列显示出高度可变的表型,额外的变异使理解复杂化.
极端的临床异质性和高等位基因频率挑战了OGDHL作为完全透的衰退性疾病的作用.
斑马鱼的功能研究揭示了没有有害影响的低形态和功能丧失变体,以及OGDH,OGDHL和DHTKD1异酶之间的复杂补偿关系的证据.

结论:

这项研究提出了三种假设:OGDHL变异会导致变异性单一性疾病,遵循复杂遗传,或不具有致病性.
评估报告的疾病基因关联的有效性,特别是对于具有异质表型的基因,如OGDHL,仍然具有挑战性.
这些发现凸显了由于变异的表型和潜在的功能冗余性,诊断OGDHL相关疾病的复杂性.

关键词:

2-oxo酸脱酶的使用方法疾病模型的疾病模型.遗传补偿是一种遗传补偿.线粒体中的线粒体.神经发育障碍神经发育障碍在 OGDHL 中.变种测试是一种测试.斑马鱼是一种斑马鱼.

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