结合单基因测试和基因组测序作为一种有效的诊断方法,用于眼和微眼患者
Rabia Basharat1,2, Kim Rodenburg2, María Rodríguez-Hidalgo2,3
1Department of Biochemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan.
Genes
|August 26, 2023
概括
通过全基因组测序,在七个家庭中实现了无眼病和微眼病 (A/M) 的遗传诊断. 这项研究确定了已知和新型基因中的致病变体,证实了基因组测序.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 眼科医生 眼科 眼科
- 发展生物学 发展生物学
背景情况:
- 眼和微眼 (A/M) 是严重的先天性眼睛疾病,超过50%的患者缺乏分子诊断.
- 血缘亲属家庭对遗传诊断提出了独特的挑战,原因是同胞性增加.
研究的目的:
- 为七个巴基斯坦家庭建立基因诊断,这些家庭患有未知分子基础的A / M.
- 评估全基因组测序在诊断复杂的先天性眼睛疾病中的有用性.
主要方法:
- 最初,对FOXE3基因进行了向测序.
- 整个基因组测序用于未通过向测序诊断的家庭.
- 进行了体外拼接试验,以确认新型PXDN拼接变异的致病性.
主要成果:
- 所有七个家庭都接受了基因诊断,识别了A / M相关基因中的同卵性致病变体.
- 在四个家族中确定了FOXE3变种.
- 基因组测序揭示了PXDN (包括一种新型的深层内部拼接变体) 和VSX2在剩余家族中的病原性变体.
结论:
- 全基因组测序是一种强大的诊断工具,用于眼和微眼,即使在血缘关系的人群中也是如此.
- 在PXDN中发现了一种新型的深层内基变异,这凸显了非编码区域在A/M病变发生过程中的重要性.
- 这项研究扩大了A / M疾病的遗传景观,并突出了综合基因组方法的诊断产量.
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