10p12.1的家族删除与血小板缺血有关
Sujal Manohar1, Yoel Gofin1, Haley Streff1
1Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA.
American journal of medical genetics. Part A
|September 25, 2023
概括
在一个患有先天性血小板缺陷的家庭中,在10p12.1区域发现了一种母性遗传缺陷. 这种删除影响ANKRD26和MAST的基因,表明遗传出血障碍的潜在原因.
科学领域:
- 遗传学 是一个遗传学.
- 血液学 血液学 血液学
- 分子生物学分子生物学
背景情况:
- 血小板减少症是一种血小板数量较低的特征,可以遗传或获得.
- 遗传性血小板缺血是罕见的,但有几种基因与其发展有关.
- 先天性血小板缺血是在出生时出现的,并且可以具有各种遗传起源.
研究的目的:
- 在一个18岁的男人和他的母亲身上调查先天性血小板缺血的遗传基础.
- 识别与观察到的表型相关的潜在致病基因或染色体区域.
- 报告第一个THC2局部删除与血小板缺血相关的实例.
主要方法:
- 在受影响的男性患者身上进行了外体序列测序.
- 分析了特定染色体缺失的母亲遗传.
- 在家族内进行分离分析,以将删除与表型相关联.
主要成果:
- 在10p12.1区域 (arr[GRCh37] 10p12.1(27378928_28384564) x1) 发现了一种1006 kb的缺失,由母亲遗传.
- 这种删除包括THC2位点,包括ANKRD26和MAST基因.
- 删除与家族中的先天性血小板缺血现型分离.
结论:
- 在THC2位点内的10p12.1区域中发现的缺失与先天性血栓细胞衰减有关.
- 建议ANKRD26或MASTL或两者的Haploinsufficiency作为潜在的机制.
- 需要进一步的功能研究来阐明THC2位点缺失在血小板衰竭中的确切作用.
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