脉中缺氧诱导的自是由HIF-1α/BNIP3介导的
Xiaohe Wang1, Zeyu Wu2, Yangyang Zhang1
1Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), No. 137 South Liyushan Road, Urumqi 830054, People's Republic of China; Xinjiang Uygur Autonomous Region Clinical Research Center for Oral Diseases, No.137 South Liyushan Road, Urumqi 830054, People's Republic of China.
Archives of oral biology
|January 10, 2024
概括
缺氧诱导因子-1α (HIF-1α) 和BNIP3在脉中促进自. 抑制HIF-1α降低了BNIP3和自,揭示了牙周炎的新途径.
科学领域:
- 细胞生物学 细胞生物学
- 病理学 病理学 病理学
- 分子生物学分子生物学
背景情况:
- 已知低氧诱导因子-1α (HIF-1α) 和BCL-2相互作用蛋白3 (BNIP3) 在低氧条件下促进细胞自.
- HIF-1α和BNIP3在脉炎期间的炎症和自过程中的特定作用仍然在很大程度上未被描述.
- 了解这些作用对于阐明脉炎的发病因子和开发向疗法至关重要.
研究的目的:
- 为了评估炎症反应的变化和牙脉组织的自水平在脉炎期间的低氧条件下.
- 探索HIF-1α/BNIP3信号通路在细胞自中的调节机制.
- 调查向这种途径的潜在治疗影响.
主要方法:
- 使用人类牙纸细胞构建鼠标模型,用于胸膜炎,缺氧和联合缺氧+胸膜炎,以及在体外模型.
- 组织学和免疫组织化学分析以评估HIF-1α,BNIP3和LC3B (自标志物) 的表达和定位.
- 传输电子显微镜用于自胞体可视化和西式斑点用于蛋白质水平分析,包括使用HIF-1α抑制剂YC-1.
主要成果:
- 胸腔炎和缺氧干预诱导了炎症反应,并激活了老鼠牙中的自性.
- 在炎症的牙纸组织中观察到HIF-1α和BNIP3的升高水平,与自的增加相关.
- 使用YC-1抑制HIF-1α导致BNIP3的下调和自的减少,证实了该途径的作用.
- 缺氧显著增强了HIF-1α/BNIP3信号传递和随后的自活化.
结论:
- HIF-1α/BNIP3信号通路被皮炎的缺氧激活,导致细胞自的增加.
- 这种途径为在顶端牙周炎中观察到的自活化提供了新的分子解释.
- 这些发现为脉炎的致病性提供了新的见解,并提出了潜在的治疗点.
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