附录素A2 促使细胞外维门释放,以应对炎症
Zhiyao Yuan1, Z Ostrowska-Podhorodecka2, T Cox2
1Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Research Institute of Stomatology, Nanjing University, Nanjing, China.
炎症增加了从牙纤维细胞通过一个依赖于Annexin A2的途径从牙纤维细胞释放的细胞外维敏 (ECV). 这种机制可能会放大牙周炎的炎症反应.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 牙周病学 牙周病学
背景情况:
- 维门是一种细胞内蛋白质,可以在细胞外释放.
- 细胞外维门 (ECV) 在炎症性疾病中导致组织损伤.
- 在炎症期间ECV释放的机制尚不清楚.
研究的目的:
- 研究炎症促进细胞外维门 (ECV) 释放的机制.
- 为了确定参与人类牙纤维细胞 (hGFs) ECV释放的蛋白质.
主要方法:
- 在患有牙周炎的人群中量化ECV水平与健康对照对比.
- 用血清或IL-1β治疗培养的hGFs以模拟炎症.
- 利用质谱和免疫沉来识别维门结合蛋白.
- 检查了蛋白质在血上的定位,使用免疫染和细胞分离.
- 评估了Annexin A2 (AnxA2) 和分泌途径在ECV释放中的作用.
主要成果:
- 在炎症性牙周炎部位,ECV水平显著更高.
- 血清和IL-1β治疗显著增加了hGFs的ECV释放.
- 附件A2 (AnxA2) 被确定为一种维门结合蛋白.
- IL-1β增强了膜分数中的AnxA2和维丁及其同位化.
- 抑制或抑制非传统分泌减少了ECV的释放.
结论:
- 炎症诱导的hGFs的ECV释放是由附件A2 (AnxA2) 介导的.
- 涉及AnxA2的非传统分泌途径促进了ECV的释放.
- 这种依赖于AnxA2的通路可能会放大牙周炎的炎症反应.
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