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案例报告:在诊断钻石-布莱克芬贫血综合征时重新考虑NGS分析

Panayiota L Papasavva¹, Konstantinos Kaouranis², Stefania Byrou¹

¹Department of Molecular Genetics Thalassemia, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.

Frontiers in genetics

|November 28, 2024

概括

钻石-布莱克芬贫血综合征 (DBAS) 的诊断可能具有挑战性. 这一案例凸显了如何用临床洞察力重新分析整个外体序列 (WES) 数据,确定了罕见的RPS17基因变异,提高了这种骨髓衰竭综合征的诊断准确度.

科学领域:

遗传学遗传学是一个
血液学血液学血液学
罕见疾病罕见疾病

背景情况:

钻石-布莱克芬贫血综合征 (DBAS) 是一种罕见的遗传性骨髓衰竭综合征,具有遗传异质性,导致诊断挑战.
精确的基因测试对于DBAS诊断至关重要,因为透率和表达力是可变的.

研究的目的:

通过对整个外因组测序 (WES) 数据的重新分析来诊断的DBAS病例.
强调临床背景和跨学科合作在解释罕见遗传疾病的WES数据方面的重要性.

主要方法:

一个家族三组整体外基因组测序 (WES) 分析与临床洞察力被重新审视.
桑格测序用于确认Ribosomal Protein S17 (RPS17) 基因中可能存在的致病变体.
进行了全面的成像研究,以评估发育不良.

主要成果:

在一个长期患有宏细胞性贫血的患者中,确定了RPS17基因的一个可能的致病变体,即启动密码子突变.
在患者及其母亲中,RPS17变异被证实是异性.
没有观察到主要的先天性形,但在两个人中都发现了轻微的食道狭窄.

结论:

在DBAS中涉及RPS17突变,特别是启动密码子变异,尽管它们的病原性关联需要进一步确定.
这一案例凸显了DBAS中RPS17变异的低诊断潜力.
重新检查具有临床相关性的WES数据对于避免假阴性结果和改善DBAS诊断至关重要.

关键词:

骨髓衰竭综合征骨髓衰竭综合征数据分析数据分析数据分析钻石黑粉丝贫血综合征过过器可以过.下一代测序的下一代测序.整体外基因组测序的测序

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相关概念视频

Next-generation Sequencing

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....