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表皮YAP1通过SHH/FGF信号调节氨基细胞分化

Y Zheng¹, Y Qu¹, H Liu¹

¹Zhejiang Key Laboratory of Organ Development and Regeneration, Institute of Developmental and Regenerative Biology, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, People's Republic of China.

Journal of dental research

|May 30, 2025

概括

皮质Yap1 (Yes相关蛋白1) 通过通过SHH/FGF信号通路调节乳头细胞分化,对乳头形成至关重要. 它的删除会损害牙面膜的发育和牙的形成.

科学领域:

牙科科学牙科科学
发育生物学发展生物学
分子生物学分子生物学

背景情况:

乳缺陷具有重要的临床影响,影响牙敏感性和口.
雅普1 (Yes-associated protein 1) 是一种参与细胞增殖和分化的转录辅激剂,在牙发育中起着已知的作用,但其在牙质形成中的确切机制尚不清楚.

研究的目的:

调查Yap1在调节质形成和乳腺细胞分化中的作用.
阐明Yap1影响这些过程的分子机制.

主要方法:

在使用Pitx2^Cre的小鼠牙上皮质中切除Yap1.
在突变的切口动物中分析了质形成, ameloblast分化标志物 (Amelx, Ambn, Mmp20),细胞增殖和细胞亡.
转录组分析和现场杂交以确定下游信号通路.
在体外和体内实验,以评估SHH和FGF信号之间的相互作用.

主要成果:

牙上皮质的Yap1剥离导致了缺陷的牙质形成,并减少了关键的乳母细胞分化标志物的表达.
细胞增殖在缺乏Yap1的切口细胞中显著降低,而不会影响亡.
删除Yap1导致SHH和FGF信号通路组件的下调.
发现SHH信号调节FGF信号,IHH (印度) 过度表达可以部分挽救Yap1删除表型.

结论:

表皮 Yap1 在乳腺细胞分化和质形成中发挥着关键作用.
Yap1通过调节SHH/FGF信号轴来调节牙的发育.
这些发现提供了对牙发育背后的分子机制的见解,以及对牙缺陷的潜在治疗点.

关键词:

发展生物学发展生物学面膜面膜是指面膜的面膜.皮质 - 介质细胞相互作用信号通道的信号路径牙的牙是一个牙.转录因子的转录因子

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