牙周炎病原体 Porphyromonas gingivalis 通过影响中性粒细胞的化学反应和功能促进慢性阻塞性肺病
Luyao Zhang1, Huan Tian2,3, Yuanyuan Ma1,4
1Center of Biotherapy, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China.
International journal of oral science
|January 8, 2026
概括
牙周炎是一种口腔炎症疾病,恶化慢性阻塞性肺病 (COPD) 的进展. 口腔细菌 Porphyromonas gingivalis 进入肺部,引发炎症和组织损伤,加剧COPD的症状.
科学领域:
- 口腔卫生和呼吸系统医学
- 微生物学和免疫学
- 病理学 病理学 病理学
背景情况:
- 慢性阻塞性肺病 (COPD) 和牙周炎是常见的炎症性疾病,具有已知的流行病学联系.
- 牙周炎加剧COPD的确切机制在很大程度上是未知的.
研究的目的:
- 用小鼠模型研究牙周炎和COPD进展之间的机制联系.
- 阐明 Porphyromonas gingivalis 在COPD肺部症状恶化的作用.
主要方法:
- 建立一个结合COPD和牙周炎的小鼠模型.
- 分析肺功能,组织病理学和炎症标志物.
- 对细菌转位和分子信号通路 (NF-κB,p38 MAPK) 的研究.
主要成果:
- 牙周炎显著恶化了COPD症状,包括呼吸功能减弱和肺炎增加.
- Porphyromonas gingivalis转移到肺部,通过CXCL2和G-CSF刺激中性粒细胞的招募.
- 中性粒细胞释放MMP-8和NE,导致气道炎症和组织损伤.
结论:
- 牙周炎通过将 Porphyromonas gingivalis 转移到肺部而加剧了 COPD .
- 这种细菌病原体会触发中性粒细胞的化学反应和激活,导致呼吸道炎症和组织损伤的增加.
- 向P. gingivalis可能为患有牙周炎的COPD患者提供治疗策略.
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