在患有疟疾的个体中,IL-10产生NK细胞的表型和功能
bioRxiv : the preprint server for biology
|May 27, 2024
概括
患有疟疾的个体的自然杀手 (NK) 细胞产生更多的IL-10,一种抗炎细胞因子. 这表明NK细胞可以通过调节炎症来保护疟疾症状.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
- 疟疾学 疟疾学
背景情况:
- 杆菌感染会引起炎症,导致疟疾症状和严重疾病.
- 适应性自然杀手 (NK) 细胞与降低寄生虫负载和症状保护有关.
- 鼠NK细胞IL-10的产生可以防止实验性脑疟疾,但人类NK细胞在疟疾中的IL-10的产生尚未得到充分了解.
研究的目的:
- 调查疟疾经验是否影响人类NK细胞的IL-10产生.
- 识别产生IL-10的NK细胞子集及其相关分子特征.
- 探索在疟疾期间诱导NK细胞产生IL-10的因素.
主要方法:
- 从有和没有疟疾经验的个体的NK细胞中比较IL-10的产生.
- 基于细胞毒性,干扰素玛和IL-10生产的NK细胞子集的特征.
- 分析IL-10产生NK细胞上的适应性和检查点分子.
- 联合培养实验使用单细胞,感染了原菌的红细胞和抗体.
主要成果:
- 来自有疟疾经验的人的NK细胞比没有疟疾的人产生显著更多的IL-10.
- 在产生IL-10的NK细胞上发现了适应性和检查点分子的特征.
- 共同培养表明单细胞,感染的红细胞和抗体诱导NK细胞IL-10的产生.
结论:
- 疟疾经验增强了人类NK细胞的IL-10产生.
- 产生IL-10的NK细胞可能在保护疟疾症状方面发挥作用.
- 通过IL-10进行NK细胞免疫调节是控制疟疾引起的炎症的潜在机制.
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