在前手术治疗期间检测焦点皮质失生症中脑体突变的检测
Rayann Checri1, Mathilde Chipaux2, Sarah Ferrand-Sorbets2
1Sorbonne Université, Institut du Cerveau-Paris Brain Institute-ICM, Inserm, CNRS, Hôpital de la Pitié Salpêtrière, 75013, Paris, France.
Brain communications
|June 16, 2023
概括
在手术电极上检测到的大脑组织中的体质突变,可以精确确定发作的焦点. 这种基因测试方法有助于诊断II型的焦点皮质发育不良并个性化治疗.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 的研究研究.
背景情况:
- 焦点性,特别是焦点皮质发育不良II型,与机械标拉巴胺素 (mTOR) 信号通路基因的体变异有关.
- 确定精确的发性区域对于手术治疗耐药性至关重要.
研究的目的:
- 研究在儿科患者中通过立体电脑电图 (EEG) 电极检测低水平马赛克体内突变的可行性.
- 建立一个概念验证,使用EEG电极的基因分析来定位发性区域.
主要方法:
- 从三名患有抗药性焦点的儿科患者身上分析切除的大脑组织和立体电脑电图 (EEG) 电极.
- 下一代测序用于识别AKT3和DEPDC5.5等基因中的体质突变.
- 突变阳性电极与发性区域和皮层发育不良的相关性.
主要成果:
- 在患者的切除脑组织中,在AKT3和DEPDC5中发现了低水平的马赛克体内突变.
- 在收集的33个EEG电极中,有4个显示出可检测的突变,这些电极位于发性区域内或其边界.
- 突变负载和活动之间的相关性得到了支持.
结论:
- 身体突变,即使在低水平的马赛克,也可以通过单个EEG电极检测到.
- 这种基因测试策略提供了一种新的方法,用于改善II型焦点皮质失生症中发性区域的诊断和定位.
- 将EEG电极的遗传分析整合到手术前评估中,可以推进耐火性的精密医学.
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