流体流应力对二次口腔发育的影响
Masayo Nagata1, Satoru Hayano1, Ziyi Wang2
1Department of Orthodontics, Okayama University Hospital, Okayama 700-8525, Japan.
Journal of developmental biology
|February 20, 2026
概括
母亲运动诱导的流体力学应力通过激活Hippo和WNT/β-catenin通路来增强 palatal shelf生长和细胞增殖,这对正常 palatogenesis至关重要.
科学领域:
- 发育生物学 发展生物学
- 生物力学 生物力学
- 头骨面部的发展
背景情况:
- 宫原发生涉及复杂的遗传和信号通路.
- 内生机械应力会影响口腔发育.
- 由于母亲的运动而引起的外源机械压力的作用尚不清楚.
研究的目的:
- 调查外源流体流动机械应力对 palatal 形态生成的影响.
- 专注于口腔架子在升高后的水平增长.
- 阐明参与压力诱导的 palatal 发展的分子机制.
主要方法:
- 小鼠胚胎 palatal 组织的器官培养.
- 机械负载 (流体流) 与没有负载的控制器的应用.
- 通过波能量,形态测量和分子分析量化应力大小.
主要成果:
- 装载的 palatal 货架显示增加了厚度和体积.
- 观察到增强的细胞增殖和YAP和β-catenin的核转移.
- 骨质原生标记物 (Osterix,Osteocalcin) 的升级,而没有增加亡.
结论:
- 外源机械应激促进了 palatal explants 的细胞增殖和骨质分化.
- 河马和WNT/β-catenin通路调解机械应力的影响.
- 适度的孕产妇运动可能有助于正常的 palatogenesis,并提供了洞察口腔裂机制.
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