内部IGF1R变异导致异常拼接,矮身和神经障碍
Liya Kerem1,2, Jonathan Rips2,3, Adam Zaretsky4
1Division of Pediatric Endocrinology, Department of Pediatrics, Hadassah Medical Organization, Jerusalem, Israel.
Journal of molecular endocrinology
|October 3, 2025
概括
胰岛素样生长因子1受体 (IGF1R) 基因中的一种新型遗传变异导致异常拼接,导致妊娠年龄 (SGA) 较小的儿童的矮身. 这一发现强调了用于诊断生长障碍的基因测试.
科学领域:
- 遗传学 是一个遗传学.
- 内分泌学 在内分泌学.
- 分子生物学分子生物学
背景情况:
- 大约10%的出生于妊娠年龄 (SGA) 较小的儿童经历了持续的矮身,可能有资格接受生长激素 (GH) 治疗.
- 胰岛素样生长因子1受体 (IGF1R) 基因中的致病变异与SGA,矮身,神经发育问题以及对GH治疗的多样反应有关.
研究的目的:
- 描述罕见的IGF1R内部变异的临床表现和分子机制,该变异在一个有感染个体的家庭中发现.
- 扩大对IGF1R相关疾病的临床和分子谱的理解.
主要方法:
- 在试验对象上进行了全外体测序 (WES).
- 在家庭内进行了分离研究和桑格测序.
- 补充DNA (cDNA) 分析被用于调查转录拼接.
主要成果:
- 在受影响的母亲中,IGF1R中发现了一种异合体内基变异 (c.3722+5G>A).
- 该变种与受影响的家族地位分离.
- cDNA分析显示,该变种导致内基保留,导致移和过早切断,将其归类为可能致病性.
结论:
- 基因检测对于患有SGA和持续矮身的儿童是有价值的.
- 这项研究描述了一种新的IGF1R内部变异,阐明了它在异常拼接中的作用,并有助于理解矮身和神经发育障碍.
- 分子诊断对于不明原因的矮身至关重要,并可能指导未来的IGF1R向治疗.
关键词:
在IGF1R的变种中,IGF1R的变种.增长的增长增长的增长增长的增长.内部保留 内部保留这是错误的拼写错误.神经系统损伤,神经系统损伤.矮身高 矮身高的人对于妊娠年龄来说很小 (SGA)整体外基因组测序 (WES) 测序更多相关视频
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