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I,III和V型原蛋白对乳腺上皮细胞发育的不同影响 in vitro

Kazuki Ninomiya¹, Yuki Yasui¹, Liang Han¹

¹Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, Sapporo 060-8589, Japan.

|October 1, 2025

概括

I,III和V类型的原蛋白在怀孕期间不同调节乳腺发育. I型原蛋白促进导管和气囊生长,而III型和V型则抑制它,影响细胞信号传递和肌上皮细胞分布.

科学领域:

生物化学生物化学
发展生物学发展生物学
细胞生物学细胞生物学

背景情况:

乳腺上皮细胞 (MEC) 和肌上皮细胞在怀孕期间经历了显著的增殖和结构发展.
富含纤维状原体 (I,III和V类型) 的乳腺层,可以动态地改变其组成.
虽然I型原蛋白在乳腺管延长和气泡芽形成中的作用已知,但III型和V型原蛋白的功能在很大程度上仍未被探索.

研究的目的:

研究I,III和V型原在乳腺上皮形态发生过程中的不同作用.
用3D有机体培养分析不同类型的原蛋白对管道延长和气泡芽形成的影响.

主要方法:

在I,III和V类型的原体凝中制备嵌入乳腺上皮细胞和肌上皮细胞的三维 (3D) 器官培养物.
对管道延长和气泡芽形成的定量分析.
细胞增殖和关键信号通路 (Akt,ERK) 的评估.
扫描电子显微镜 (SEM) 用于可视化纤维结构.

主要成果:

I型原蛋白剂量取决于增强的导管延长和气泡芽形成.
与I型原相比,III型原抑制了这些形态遗传过程.
类型V原导致狭窄的管道和胀的气膜状结构.
与I型原蛋白相比,III型和V型原蛋白减少了细胞增殖和减弱了Akt和ERK信号传递.
肌皮细胞分布在不同类型的原蛋白中有显著的差异,在I型和V型原蛋白中不存在,但在III型原蛋白中周围有机体.

结论:

I,III和V型原体对乳腺上皮形态发生有不同的调节作用.
原蛋白类型影响管道延长,气泡芽,细胞增殖和信号通路.
肌皮细胞的空间组织依赖于原,突出显示了细胞外基质和组织发育之间的复杂相互作用.

关键词:

气泡泡的花朵是什么?纤维状原蛋白是一种纤维状原蛋白.乳腺管道乳腺管道哺乳动物上皮细胞肌上皮细胞肌上皮细胞

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