全球ALPL基因变异分类项目:致力于解密变异.
Mariam R Farman1, Catherine Rehder2, Theodora Malli3
1Department of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Linz, Austria.
Bone
|October 28, 2023
概括
这项研究重新分类了ALPL基因中不确定的意义的变异,改善了低酸性病 (HPP) 的遗传诊断. ALPL基因变异数据库有助于理解HPP遗传和表型谱,以更好地照顾患者.
科学领域:
- 遗传学 遗传学 是一个
- 罕见疾病 罕见疾病
- 生物化学 生物化学
背景情况:
- 低度症 (HPP) 是一种罕见的遗传性疾病,影响骨和牙矿化,由ALPL基因的致病变体引起.
- 在ALPL中不确定的意义 (VUS) 的变异导致患者和医疗保健提供者的诊断延迟和不确定性.
- 组织非特异性酸酶 (TNSALP) 是由ALPL基因编码的.
研究的目的:
- 在ALPL基因中重新分类具有不确定的意义的变异 (VUS).
- 以更新的遗传,表型和功能信息来增强ALPL基因变异数据库.
- 改善基因咨询和医疗决策对低酸症患者.
主要方法:
- 建立了一个国际,多学科的专家联盟,用于变种分类.
- 使用了遵循ACMG/AMP指南的多步骤过程,包括临床表型评估和用AI进行文献研究.
- 包括分子遗传评估和体外功能测试来测量ALP残留活性.
主要成果:
- ALPL基因变异数据库存档了编码和非编码变异,包括SNV,indel和结构变异.
- 一个提交系统允许专家提交VUS进行分类.
- 对VUS的重新分类是使用严格的,多方面的方法进行的.
结论:
- ALPL基因变异分类项目和数据库将使全球医学界受益.
- 新的ALPL变种的表征将扩大对HPP基因型和表型谱的理解.
- 该项目可能为罕见疾病的多学科变异解释建立一个黄金标准.
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