巨细胞适应缺氧:新陈代谢,迁移和细胞形成
Lu Yuan1, Tiemen Mellema1, Gésinda I Geertsema-Doornbusch1
1Biomaterials and Biomedical Technology, University of Groningen and University Medical Center Groningen, Groningen, Netherlands.
Frontiers in cellular and infection microbiology
|December 29, 2025
概括
牙周炎的缺氧改变了巨细胞的新陈代谢和功能,提高了它们控制口腔细菌的能力,如Streptococcus oralis和Porphyromonas gingivalis尽管运动能力降低.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 微生物学 微生物学
背景情况:
- 缺氧在诸如牙周炎等疾病中普遍存在,影响免疫细胞行为.
- 在低氧条件下的巨细胞表现出改变的新陈代谢,表型和功能.
- 这些变化对感染组织中巨-口腔细菌相互作用的影响尚不清楚.
研究的目的:
- 研究低氧张力 (2% O2) 与正常氧 (20% O2) 如何影响巨细胞代谢,形态,迁移和牙周炎中与口腔细菌的相互作用.
- 阐明缺氧诱导因子-1α (HIF-1α) 在调解这些反应中的作用.
主要方法:
- 在低氧 (2% O2) 和正常 (20% O2) 条件下培养巨细胞.
- 评估了新陈代谢,形态,迁移和细胞功能.
- 分析了与开始性 (Streptococcus oralis) 和致病性 (Porphyromonas gingivalis) 口腔细菌的相互作用.
- 测量了细胞因子概况和反应性氧物种的产生.
主要成果:
- 缺氧激活了HIF-1α,促进了糖溶性新陈代谢和圆形形态与阿米类迁移.
- 尽管移动性降低,但低氧性巨细胞有效细胞化,并限制了S. oralis和P. gingivalis的细胞内增殖.
- 改变的细胞因子概况包括增加IL-1β和IL-10,减少TNF-α,增强反应性氧物种的产生.
结论:
- 巨细胞在适应低毒环境方面表现出显著的可塑性,这对于牙周炎中宿主防御至关重要.
- 这些缺氧诱导的适应会影响免疫反应和炎症分辨率.
- 针对缺氧相关的免疫功能障碍,为牙周病提供了潜在的治疗策略.
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