在亨廷顿病模型中,thalamic Foxp2 调节输出连接和感官运动障碍
Ened Rodríguez-Urgellés1,2,3, Diana Casas-Torremocha2, Anna Sancho-Balsells1,2,3
1Facultat de Medicina, Departament de Biomedicina, Institut de Neurociències, Universitat de Barcelona, 08036, Barcelona, Spain.
Cellular and molecular life sciences : CMLS
|November 21, 2023
概括
降低 thalamic Foxp2 水平通过改变大脑连接来促进亨廷顿氏病 (HD). 在HD小鼠中恢复Foxp2改善了运动技能和大脑功能,这表明Foxp2是治疗点.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 亨廷顿氏病 (HD) 的特征是变化的纹状体的谷氨基内化,与thalamic核显著贡献.
- 在HD患者中观察到转录因子Foxp2的水平降低,但其在丘脑中的作用尚不清楚.
研究的目的:
- 为了调查thalamic Foxp2在亨廷顿病中的作用.
- 探索Foxp2对状体-状体和状体-皮层连接性的影响.
- 评估恢复thalamic Foxp2水平的治疗潜力.
主要方法:
- 利用了两个对亨廷顿病 (R6/1和HdhQ111) 的小鼠模型.
- 用于体内电生理学,微透析和基于狂犬病病毒的追踪来分析突触连接.
- 操纵了HD和野生类型小鼠的丘脑中的Foxp2水平,以评估功能和行为结果.
主要成果:
- 在HD小鼠模型中,表现出thalamic Foxp2水平的早期降低和异常的thalamo-striatal连接.
- 恢复thalamic Foxp2改善了运动和感觉缺陷,神经病理,并修复了突触连接.
- 野生类型小鼠中减少的thalamic Foxp2诱导了类似HD的表型,突出了其关键作用.
结论:
- thalamic Foxp2失调是亨廷顿病病理生理学的新型因素.
- 在 thalamus 中改变的 Foxp2 水平会破坏基底质回路.
- 福克斯p2代表了亨廷顿病的潜在治疗目标.
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