由于生殖线和体质马赛克变异的PIK3CA相关表型:两例病例报告
Nazli Busra Acikgoz1, Damla Yildiz1, Gizem Urel-Demir1
1Division of Pediatric Genetics, Department of Pediatrics, Hacettepe University, Ankara, Turkey.
Molecular syndromology
|December 24, 2025
概括
人体马赛克和生殖系PIK3CA变种可能导致罕见的过度生长条件. 本研究介绍了两名患有PIK3CA变异的患者,详细介绍了他们不同的临床过程和结果.
科学领域:
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
- 临床医学 临床医学
背景情况:
- 激活PIK3CA变异是一种已知的细分过度生长的原因.
- 生殖系PIK3CA变异很少见,并且具有不同的临床特征.
- 了解PIK3CA相关疾病对于诊断和治疗至关重要.
研究的目的:
- 报告两名与PIK3CA变种无关的患者,一个人体马赛克和一个de novo生殖系.
- 为这些罕见病例提供纵向临床随访.
- 为了解与PIK3CA相关的表型作出贡献.
主要方法:
- 两名患有PIK3CA变异的患者的病例报告.
- 基因测序 (提到桑格测序).
- 临床评估和纵向随访.
主要成果:
- 患者1:人体马赛克PIK3CA变体 (c.1412C>T; p.Pro471Leu) 与大脑,过度生长,和大脑异常有关.
- 患者2:De novo生殖系PIK3CA变体 (c.323G>A; p.Arg108His) 与大脑症,多动症和心脏异常 (心脏门脱落,大动脉根扩张) 有关.
- 两位患者都表现出与他们的PIK3CA变异相关的独特表型.
结论:
- 这些病例突出显示了PIK3CA相关疾病的表型谱,无论是在体质马赛克和生殖系背景下.
- 需要对更大的队列和功能性研究进行进一步的研究.
- 完善基因型-表型相关性和探索向疗法是未来重要的方向.
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