一个新的SERPINC1 c.119G>A (p.Cys40Tyr) 突变,在印度家庭中具有可变的临床表达
Kranti Patil1, Asha Shah2, Gurpreet Saini1
1Advanced Center for Oncology, Hematology and Rare Disorders (ACOHRD), K.J. Somaiya Super Speciality Hospital & Research Center, Somaiya Ayurvihar, Sion East.
概括
一种新的SERPINC1突变导致严重的遗传性抗血栓缺乏症,导致两个兄弟的早期肺血栓栓塞. 他们的父亲,具有相同的突变,仍然没有症状,这表明其他遗传因素可能会影响疾病的严重程度.
科学领域:
- 遗传学 遗传学 是一个
- 血液学 血液学 血液学
- 分子生物学分子生物学
背景情况:
- 由SERPINC1突变引起的遗传性抗血素 (AT) 缺乏症是一种严重的血栓友爱症.
- 了解遗传变异对于预测血栓形成风险至关重要.
研究的目的:
- 报告一家具有遗传AT缺陷的家庭中的新型SERPINC1突变 (c.119 G>A,p.Cys40Tyr).
- 调查家族内不同血栓现象型的遗传基础.
主要方法:
- 临床外基因组测序在三个家庭成员身上进行.
- 在基预测工具 (PolyPhen-2,SIFT,MutationTaster) 评估了新型变种的致病性.
- 分析包括SERPINC1和常见的血栓相关基因,如SERPINE1.
主要成果:
- 在所有三个受影响的家族成员中都发现了一种新的SERPINC1突变 (c.119 G>A,p.Cys40Tyr).
- 两个兄弟在18岁和21岁时出现了急性肺血栓栓塞症 (PTE).
- 无症状的父亲 (58岁) 携带相同的SERPINC1突变,但对SERPINE1 -844 G>A变异异,与他的同卵性儿子不同.
结论:
- 新型SERPINC1突变与遗传性AT缺乏症和早期PTE的高风险有关.
- 不同的临床表现表明,其他遗传因素,如SERPINE1变体,可能会调节血栓形成风险和疾病严重程度.
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