在PTEN的变体与多种多样的皮层发育不良相关
Emily Shelkowitz1, Nicholas V Stence2, Ilana Neuberger2
1Department of Pediatrics, University of Washington, Seattle, Washington.
Pediatric neurology
|August 24, 2023
概括
PTEN突变会导致大脑和大脑形. 虽然神经发育问题很常见,但结果可能是有利的,建议对这些情况进行PTEN测试.
科学领域:
- 遗传学和神经学 遗传学和神经学
- 分子生物学分子生物学
- 发育神经科学的发展神经科学.
背景情况:
- 失活的PTEN突变是巨脑的常见原因.
- 在PI3K/AKT/MTOR途径中激活突变经常导致皮质大脑形.
- 皮质皮质形与PTEN的关联是最近的,预后数据有限.
研究的目的:
- 分析PTEN突变和皮质大脑形的个体的大脑表型和结果.
- 为了研究与PTEN无活化突变相关的皮质失调的频谱.
- 评估PTEN相关皮质形的预后意义.
主要方法:
- 在20名患有致病性PTEN突变的参与者中,对神经成像进行了回顾性分析.
- 临床和遗传数据的详细图表审查.
- 大脑表型的分类包括半巨脑症,焦点皮层发育不良,多微脑症 (PMG) 和具有复杂旋转模式 (MCG) 的大脑症.
主要成果:
- 已经确定了四种大脑表型:半大脑,焦点皮质发育不良,PMG和MCG.
- 90%的参与者呈现了神经发育的发现;超过一半的结果是有利的.
- 自闭症谱系障碍发生在39%的患者中;发生在19%的纯PMG或MCG病例中. 在超过三分之一的患者中,PTEN-hamartoma瘤综合征的全身特征不存在.
结论:
- 具有PTEN突变的个体表现出一种皮质位障碍的频谱.
- 尽管神经发育性疾病负担很高,但长期结果可能是有利的.
- 建议对大脑和皮质大脑形进行胚胎PTEN突变检测,即使没有其他症状.
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