棕酸提高CD96的表达,通过抑制细胞毒性活动和促进人类自然杀手细胞的粘附功能来调节母胎界面免疫耐受性
1Department of Assisted Reproduction, School of Medicine, Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, No. 500 Zhizaoju Road, Huangpu District, Shanghai 200025, China.
Bioengineering (Basel, Switzerland)
|September 28, 2023
概括
脱落性自然杀手 (dNK) 细胞调节妊娠免疫力. 在dNK细胞上的CD96抑制了它们的功能,可能导致重复流产. 阻断CD96增强dNK细胞的活动,提供治疗见解.
科学领域:
- 生殖免疫学 生殖免疫学
- 母胎界面 母胎界面
- 免疫学 免疫学 免疫学
背景情况:
- 脱落性自然杀手 (dNK) 细胞对于早期怀孕至关重要,其失调与反复流产有关.
- 已知调节瘤NK细胞功能的CD96在母胎界面的作用尚不清楚.
- 了解dNK细胞中CD96的机制对于解决妊娠并发症至关重要.
研究的目的:
- 研究CD96在母胎界面的叶自然杀手 (dNK) 细胞中的免疫调节作用和机制.
- 探索CD96表达和阻断对dNK细胞功能的影响,包括细胞毒性,粘附和细胞因子分泌.
- 为了检查棕酸和CD96抗剂对dNK细胞行为在共同培养系统的影响.
主要方法:
- 免疫光染色和流细胞计检测CD96和其他标记物表达 (TIGIT,CD155,CD112).
- 磁珠分类用于隔离dNK细胞,用于功能测定和CD96阻塞实验.
- 评估dNK细胞分泌功能,粘附分子,增殖和细胞毒性活动在各种治疗 (棕酸,CD96抗剂) 后.
主要成果:
- CD96,TIGIT,CD155和CD112在母胎界面高度表达;dNK细胞主要表达CD96.
- CD96+dNK细胞表现出低细胞毒性和高粘附性,在母胎界面调解免疫抑制.
- 棕酸增加了dNK细胞上的CD96表达,抑制了它们的活性并增强了粘附性; CD96抗剂治疗逆转了这些影响,增加了细胞因子分泌并减少了粘附性.
结论:
- CD96在母胎界面的dNK细胞中起着重要的免疫调节作用,有助于免疫抑制.
- 棕酸通过CD96上调调节加剧dNK细胞功能障碍,突出了妊娠并发症的潜在环境因素.
- CD96对抗性提供了一个有前途的治疗策略,以恢复dNK细胞功能,并可能防止反复流产.
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