极性调节器的损失会在合成细胞中启动气体皮质胺-E介导的灭
Khushali Patel1, Jasmine Nguyen2, Sumaiyah Shaha2
1Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Canada.
Life science alliance
|July 19, 2023
概括
非典型的蛋白激酶C (aPKC) 异型调节胎盘细胞极性. 失去aPKC活动会导致计划性亡,影响怀孕健康,并可能导致产前.
科学领域:
- 生殖生物学 生殖生物学
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 合成细胞是母亲和胎儿之间的关键接口,调节营养交换并作为屏障.
- 被极性丧失所标志的同胞性质细胞功能障碍与妊娠病理如孕前有关.
- 非典型蛋白激酶C (aPKC) 异型是众所周知的细胞极性的调节者,在各种表皮系统.
研究的目的:
- 为了研究aPKC异型在调节同聚氨基细胞极性中的作用.
- 为了确定aPKC功能障碍对同聚类细胞活力和功能的后果.
- 探索炎症刺激对aPKC介导的同聚类细胞调节的影响.
主要方法:
- 利用了人类的胎盘扩展培养物和初级热囊细胞.
- 评估了抑制aPKC活性或表达对同聚氨基细胞极性和活性的影响.
- 研究了加斯德明-E在aPKC诱导的细胞死亡中的作用.
- 研究了瘤坏死因子-α (TNF-α) 对aPKC表达和合成类细胞灭的影响.
主要成果:
- aPKC活动或表达的丧失会触发 syncytiotrophoblasts 中的气体皮质-E 依赖性灭 (编程灭).
- 瘤坏死因子-α (TNF-α) 以异型特异的方式减少aPKC的表达,从而导致热亡.
- aPKCs充当同位素调节器的syncytiotrophoblast功能,保持极性和防止细胞死亡.
结论:
- aPKC异型对于维持同聚氨基细胞的极性和功能至关重要.
- 炎症信号,如TNF-α,可以通过降低aPKCs的调节来扰乱合成类细胞的恒常性,从而诱导热.
- 这些发现为胎盘疾病的病理生物学提供了洞察力,包括妊娠前,并突出了在母胎界面的程序性亡的新机制.
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