科利克器官作为小鼠尾管中的发育枢纽,调节螺旋边缘和纹膜发育
Hongji Zhang1,2, Timothy Papiernik3, Selena Tian3
1Anatomy Department, Midwestern University, Downers Grove, Illinois 60515.
概括
PRDM16对于开发小鼠耳结构至关重要,包括科利克器官和构造膜,其缺乏会导致听力损失.
科学领域:
- 发展生物学 发展生物学
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 遗传学 是一个遗传学.
背景情况:
- 科利克器官是小鼠耳中的一个短暂的发育结构.
- 它的确切功能和监管尚未完全理解.
- PRDM16是科利克器官的已知标记物和调节剂.
研究的目的:
- 研究PRDM16在Kölliker器官发育中的作用及其对耳结构和功能的影响.
- 阐明PRDM16在发育中的尾细胞中的功能背后的分子机制.
主要方法:
- PRDM16的表皮特异性条件删除小鼠模型.
- 耳结构的组织学分析.
- 听觉脑干反应 (ABR) 测试.
- 单细胞RNA测序 (scRNA-seq). 在一个单细胞RNA测序.
主要成果:
- PRDM16是牙间细胞发育,构造膜形成和螺旋边缘矩阵沉积所必需的.
- 缺少PRDM16导致低可塑性螺旋边缘和受损的构造膜成熟.
- scRNA-seq表明结合性组织生长因子 (CTGF) 在表皮-介质细胞信号传递中在PRDM16下游的作用.
- 缺乏PRDM16的小鼠表现出听力缺陷.
结论:
- PRDM16对于正常的耳发育至关重要,调节科利克器官,纹膜和螺旋边缘.
- PRDM16在调节螺旋介质基因组矩阵发育方面具有非细胞自主作用.
- 在小鼠中,PRDM16被确定为一种新的耳聋基因.
- 科利克器官是一个发育中心,影响周围的耳结构.
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