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ZBTB20对于小鼠的耳成熟和听力至关重要

Zhifang Xie^1,2, Xian-Hua Ma², Qiu-Fang Bai³

¹Ministry of Education-Shanghai Key Laboratory of Children's Environmental Health, Institute of Early Life Health, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200092, China.

Proceedings of the National Academy of Sciences of the United States of America

|June 6, 2023

概括

ZBTB20对于听力发育至关重要. 在小鼠中缺少它会导致耳聋和耳非感官表皮质的成熟停止,影响听力结构.

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
遗传学遗传学是一种遗传学.

背景情况:

哺乳动物的耳发育需要在听力开始之前进行显著的重塑.
晚期耳成熟的转录调节,特别是侧面非感官区域,仍然不太了解.

研究的目的:

确定调节耳末端分化和成熟的关键转录因子.
阐明ZBTB20在耳非感官表皮的发展中的作用及其对听觉的贡献.

主要方法:

研究了ZBTB20在发育中的和成熟的带中的表达模式.
在小鼠中利用特定于囊的Zbtb20删除来评估其功能.
进行了转录组分析,以识别ZBTB20调节基因.

主要成果:

ZBTB20对于耳末端的分化,成熟和听力至关重要.
删除Zbtb20导致了严重的聋,减少了内淋巴潜力,并阻止了耳上皮细胞的产后发育.
具体的缺陷包括科尔蒂的不成熟器官,形成异常的构造膜,平的螺旋突出,以及博特切尔细胞的缺失.

结论:

ZBTB20是产后耳成熟的关键调节者.
ZBTB20在耳侧非感官域的终端分化中发挥着至关重要的作用,包括外根细胞和螺旋突出表皮细胞.
ZBTB20调节了参与构造膜形成和特定非感官细胞类型分化的基因.

关键词:

审计审计审计审计审计审计审计审计审计审计细胞分化的细胞分化.甲状腺甲状腺是什么听到听到听到听到听到听到听到转录因子的转录因子

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The Cochlea

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The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.