在RASopathy谱基因中的生殖系激活序列变异:北印度队列中的基因型-表型相关性
Shifali Gupta1, Priyanka Srivastava1, Roshan Daniel1
1Genetic Metabolic Unit, Department of Pediatrics, Advanced Pediatrics Centre, Post Graduate Institute of Medical Education and Research, Chandigarh, India.
拉索病,由RAS/MAPK路径基因变异引起的发育障碍,在北印度表现出多样化的临床和遗传特征. 下一代测序有助于诊断,并确定了潜在的药物基因相互作用.
科学领域:
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
- 生物信息学是一种生物信息学.
背景情况:
- 拉索病是一种与RAS/MAPK信号通路相关的遗传多样化的发育障碍.
- 临床特征的重叠使得RASopathy诊断变得复杂.
- 途径失调会影响发育,并导致各种表型表现.
研究的目的:
- 在北印度群体中进行全面的临床遗传相关性分析.
- 在RASopathy谱系障碍中识别致病性遗传变异.
- 使用生物信息学工具探索潜在的药物基因相互作用.
主要方法:
- 招募了84名怀疑患有RASopathy谱系障碍的患者.
- 进行全外体序列测定 (WES) 来检测致病变体.
- 收集了基因型-表型相关性的临床数据,并查询了药物-基因相互作用的DGIdb.
主要成果:
- 在46例RASopathy相关基因中确定了致病变体,其中14例是神经纤维素瘤.
- 在PTPN11 (12例) 和其他基因 (LZTR1,MAPK1,BRAF,NRAS,HRAS,RAF1,RIT1,SOS1,SOS2) 中检测到变异.
- 它们的共同特征包括身高矮 (64.7%),下倾斜的眼裂 (38.23%) 和胸壁形 (35.29%).
结论:
- 研究结果强调了印度人口中RAS病的临床和遗传多样性.
- 下一代测序对于早期和准确的RASopathy诊断至关重要.
- 探索性药物基因相互作用分析为未来的研究和临床验证提供了假设.
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