在三腺节发育过程中,按摩器的内化需要Mllt11 (Af1q/Tcf7c) 功能
Nicholas W Zinck1, Danielle Stanton-Turcotte1, Emily A Witt1
1Department of Medical Neuroscience, and Brain Repair Centre, Faculty of Medicine, Dalhousie University, Life Science Research Institute, Halifax, Nova Scotia, Canada.
The International journal of developmental biology
|August 1, 2025
概括
这项研究显示,Mllt11对三神经发育和马塞特肌肉内化至关重要. 失去Mllt11会改变三腺的细胞组成,并损害运动功能.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 分子生物学分子生物学
背景情况:
- 神经发育和神经肌肉结 (NMJ) 形成对于面运动功能至关重要.
- Mllt11 (也称为Af1q/Tcf7c) 是细胞骨蛋白,参与中枢神经系统发育,但其外围作用尚不清楚.
研究的目的:
- 研究Mllt11在三神经发育中的功能及其对masseter肌肉内置的影响.
- 了解Mllt11在三腺的细胞组成中的作用.
主要方法:
- 利用条件淘汰赛小鼠模型在Wnt1表达神经细胞中删除Mllt11.
- 评估了三腺节的发育,细胞组成和masseter肌肉内置.
- 分析了神经丝密度,NMJ形成和分支运动神经元群.
主要成果:
- 在发育中的三腺节中检测到Mllt11的表达.
- Mllt11的损失并没有影响初始的三腺的形成,但改变了它的斑点和神经细胞组成.
- 条件Mllt11无活化减少了神经丝密度和NMJs在masseter肌肉中,减少了Phox2b+分支运动神经元,表明三角线运动内接受损.
结论:
- Mllt11调节三腺的细胞组成.
- Mllt11对于正确的三叉体运动内内接的masseter肌肉至关重要.
- Wnt1Cre2驱动器在枝状运动神经元中显示出意想不到的重组,影响了结果.
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