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在热囊细胞分化中的上皮介质可塑性

Nicholas P Illsley¹, Stacy Zamudio¹

¹Placental Research Group LLC, Maplewood, NJ, USA; Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ, USA.

|February 25, 2026

概括

人类胎盘的发育涉及细胞质体 (CTB) 通过表皮-介质细胞过渡 (EMT) 区分为侵入性外性质体 (EVT). 这个过程由ZEB2调节,涉及塑性,EVT在怀孕期间转移表型.

科学领域:

生殖生物学生殖生物学
发育生物学是发展生物学.
细胞分化的细胞分化.

背景情况:

细胞质细胞 (CTB) 转化为外性质细胞 (EVT) 的分化对人类胎盘发育至关重要.
这个过程涉及从上皮细胞转变为介质细胞表型,称为上皮细胞-介质细胞过渡 (EMT).

研究的目的:

探索CTB分化成侵袭性EVT的机制.
在怀孕期间在热囊细胞中分析与EMT和介质细胞-上皮细胞过渡 (MET) 相关的基因表达和DNA甲基化模式.
调查ZEB2在调节热囊细胞EMT中的作用.

主要方法:

在第一和第三个三个月CTB和EVT中对EMT相关基因的基因表达分析.
分析ZEB2转录因子表达及其对热囊细胞细胞系的影响.
第三个三个月的DNA甲基化分析EVT.
开发一种特定于热囊细胞的EMT签名.

主要成果:

第一个三个月的EVT显示了EMT的证据,其中增加了ZEB2表达和介质细胞,侵入性表型.
第三个三个月的EVT表现出MET,具有减少的ZEB2表达和非运动性,非增殖性介质细胞表型.
过度表达ZEB2促进EMT标记物,介质细胞形态和细胞细胞系的侵入性.
在第三个三个月的EVT中观察到全基因组低甲基化和特定基因高甲基化,这表明基因表达受到调节.
热囊细胞表现出表皮-介质细胞可塑性 (EMP),在EMT和MET表型之间有动态转移.

结论:

ZEB2是第一季度EVT中EMT的关键调节者,促进了入侵.
trofhoblast 细胞在第三个三个月经历MET,过渡到一个非侵入性的表型.
热原体上皮层-介质细胞可塑性 (EMP) 允许在整个怀孕期间动态适应EVT表型.
了解这些转变对于理解胎盘正常发育和识别潜在的病态至关重要.

关键词:

细胞细胞体的细胞细胞体皮质 - 介质细胞过渡.额外的多囊细胞.

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