在VACTERL协会中的三元外体序列化
Jasmina Ćomić1,2, Erik Tilch1, Korbinian M Riedhammer1,2,3
1Institute of Human Genetics, Klinikum rechts der Isar, Technical University of Munich, TUM School of Medicine and Health, Munich, Germany.
Kidney international reports
|April 14, 2025
概括
基因检测发现VACTERL关联的单一原因很少,这表明大多数病例源于未知的遗传因素或超出外基因测序检测的机制. 需要进一步的研究来揭示这些潜在原因.
科学领域:
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
- 罕见疾病 罕见疾病
背景情况:
- 有限的数据存在于VACTERL (脊椎缺陷,直肠形,心脏缺陷,食道缩/呼吸道食道,脏缺陷,四肢缺陷) 关联的单一原因.
- 了解遗传基础对于诊断和治疗复杂的先天性异常至关重要.
研究的目的:
- 在已知与VACTERL关联的基因中识别引起疾病的变异.
- 为了确定VACTERL协会中单一原因的诊断产量.
- 通过全面的遗传分析发现新型候选基因和罕见变异.
主要方法:
- 在96名与VACTERL相关联的个体及其父母身上进行了整体外基因组测序 (WES).
- 进行了病例控制基因和通路负荷测试.
- 基于家族的关联测试 (FBAT) 用于变体和途径分析.
主要成果:
- 已知基因的致病变体在96个个体中只有5个被确定,与卡布基综合征,索托斯综合征,MELAS综合征和TWIST1删除综合征有关.
- 在91个个体中没有发现致病变体.
- FBAT确定了14个显著变异,2个显著的基因 (LOC645752,ZNF417) 和8个显著的途径.
结论:
- 大多数VACTERL关联病例似乎不是由已知的离散遗传综合征引起的,这些遗传综合征可以通过当前的外体序列测定来检测.
- 这些发现表明,未识别的病理机制或遗传变异可能参与其中,这些变异并未被WES捕获.
- 需要进一步调查,以阐明VACTERL相关的遗传基础在剩余的情况下.
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