单细胞转录组分析揭示了水母刺伤患者的细胞异质性和改变的信号通路
Zhen Qin1,2, Zhengfeng Hao2,3, Chun Wang1
1Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China.
Marine drugs
|September 26, 2025
概括
水母刺伤会引起严重的免疫反应. 单细胞分析显示,水母刺伤极大地改变了免疫细胞,特别是单细胞和中性粒细胞,为中毒提供了新的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 毒理学 毒理学 毒理学
- 基因组学就是基因组学.
背景情况:
- 水母刺伤可以引起严重的全身反应.
- 对水母毒素的免疫反应还不太清楚.
研究的目的:
- 用单细胞RNA测序研究严重的水母刺痛后的免疫细胞格局.
- 确定特定的免疫细胞子集和参与对水母毒素反应的途径.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 在来自严重毒性患者和健康对照的外周血液单核细胞 (PBMC) 上进行.
- 生物信息分析用于识别免疫细胞类型,子集群及其功能概况.
主要成果:
- 与对照人群相比,该患者的CD14+单细胞显著增加 (81.86%) 和T细胞,B细胞和CD16+单细胞显著减少.
- 患者的单细胞亚群被丰富为与炎症和迁移相关的MMP9+和RETN+.
- 患者中的中性粒细胞主要是LTF+和S100A12+,表明炎症和免疫调节作用.
结论:
- 水母刺伤会在单细胞水平上引起显著的免疫失调.
- MMP9+单细胞和S100A12+中性粒细胞是推动刺痛后炎症的关键因素.
- 这些发现表明,对于管理严重的水母中毒的潜在治疗目标.
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