阴茎细胞诱导从阴道上皮细胞释放自由和外体结合的干扰素Epsilon
Emmanuel Amabebe1, Lauren S Richardson1, Awanit Kumar1
1Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, Texas, USA.
American journal of reproductive immunology (New York, N.Y. : 1989)
|September 12, 2025
概括
阴道细胞中的氧化应激触发了通过细胞外囊泡释放的干扰素epsilon,这表明粘膜的免疫防御机制. 这种反应受到树叶细胞的影响,表明妊娠组织之间的潜在交叉声.
科学领域:
- 生殖免疫学 生殖免疫学
- 细胞生物学 细胞生物学
- 细胞外囊泡研究研究
背景情况:
- 氧化应激 (OS) 可以诱导生殖组织的炎症反应.
- 干扰素epsilon (IFNε) 在粘膜免疫中起作用.
- 细胞外囊泡 (EVs) 参与细胞间通信.
研究的目的:
- 为了调查是否在细胞 (DECs) 中的OS诱导的炎症触发了来自阴道上皮细胞 (VECs) 的IFNε阳性EVs的释放.
- 了解VEC衍生的EVs在OS条件下调解阴道干扰中的作用.
主要方法:
- 阴道上皮细胞 (VECs) 暴露于从经过处理/未经处理的叶细胞 (DECs) 获得的香烟烟雾提取物 (CSE) 或条件介质.
- 用ELISA测量细胞,介质和EV中的干扰素epsilon (IFNε) 度.
- 通过超离心隔离EVs,并使用免疫阻塞和纳米粒子跟踪分析进行了表征.
主要成果:
- 在VEC中,CSE治疗增加了细胞内IFNε,但不是自由或与EV结合的IFNε.
- 从DECs (正常和CSE治疗) 的条件介质增加了VECs中的细胞内和自由IFNε.
- 以外体为特征的VEC衍生的EV数量减少,但在暴露于DEC受条件介质时显示出显著增加的IFNε含量.
结论:
- 从VEC释放的IFNε,特别是在EV中,代表了对OS的先天性粘膜免疫防御.
- 脱落细胞的存在,无论是生理还是病理,都增强了IFNε从VEC释放.
- 这表明VECs的应激反应和母亲妊娠组织之间潜在的副内信号传递.
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