在ABCA3患者中的表型-基因型相关性-RespiRare队列
Manon Fleury1, Céline Delestrain2,3, Alice Hadchouel4
1Pediatric Pulmonology Department, AP-HP, Reference Centre for Rare Lung Diseases (RespiRare), Armand Trousseau Hospital, Sorbonne Université, Paris, France.
缺少ATP结合盒载体A3 (ABCA3) 会导致严重的儿童肺部疾病. 基因型影响疾病的严重程度和存活率,零变异和新生儿发病表明预后较差.
科学领域:
- 遗传学 遗传学 是一个
- 儿科肺病学 儿科肺病学
- 分子生物学分子生物学
背景情况:
- ATP结合盒载体A3 (ABCA3) 缺乏是儿童间歇性肺部疾病 (CHILD) 的严重原因.
- 了解基因型-表型相关性对于管理CHILD至关重要.
- 该RespiRare队列提供了关于ABCA3缺陷的有价值数据.
研究的目的:
- 为了报告RespiRare ABCA3队列.
- 在患有ABCA3缺乏症的儿童中建立表型-基因型相关性.
- 分析基因型对儿童表现和演变的影响.
主要方法:
- 对18岁以下患者的表型和基因型数据 (1995-2023) 的回顾性分析.
- 包括来自RespiRare中心的数据.
- 基于基因型的初始呈现和疾病演变的分析.
主要成果:
- ABCA3队列包括36名儿童;其中86%患有新生儿呼吸困扰综合征.
- 总体5年生存率为25%,中位数生存时间为0.33年.
- 新生儿发病和肺高血压的预后明显恶化;生存率因基因型而异 (0%为零/零,50%为零/其他,23%为其他/其他).
结论:
- 由于ABCA3变异的CHILD的临床表现和结果与特定的基因型密切相关.
- 零变异和影响核酸结合域 (NBD) 的变异与特别严重的疾病有关.
- 以基因型为指导的理解对于预测疾病进程和管理ABCA3缺陷至关重要.
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