梅尼耶氏病的循环线索:患者血液中细胞自由DNA升高和促炎特征
Marijana Sekulic1, Swethiny Kobivasan2, Stavros Giaglis1
1Department of Biomedicine, University Hospital Basel, 4031 Basel, Switzerland.
International journal of molecular sciences
|February 27, 2026
概括
在Ménière中,无细胞DNA (cfDNA) 和炎症媒介.
科学领域:
- 耳鼻喉科和血管生物学
背景情况:
- 梅尼尔病 (MD) 与血液迷宫屏障功能障碍有关,但内皮损伤的潜在机制尚未完全理解.
- 循环因素,如无细胞DNA (cfDNA) 和炎症调解剂,可能在MD的血管应激和屏障破坏中发挥作用.
研究的目的:
- 调查血cfDNA和炎症媒介对内皮损伤和血液迷宫屏障破坏在梅尼耶尔病的贡献.
主要方法:
- 在MD患者和健康对照中量化血cfDNA水平.
- 使用暴露在患者血中的人体血管内皮细胞评估内皮质屏障功能.
- 对内皮细胞毒性,F-actin组织,syndecan-1表达和炎症媒介的分析 (IL-1β,CCL3,CCL27).
主要成果:
- 在MD患者的血中发现显著升高的cfDNA水平.
- MD血损害了内皮屏障功能,增加了细胞毒性,并导致了葡萄糖的降解 (降低了syndecan-1).
- DNase I治疗部分扭转了这些影响,突出了cfDNA的作用. 在MD血中观察到升高的IL-1β,CCL3和CCL27.
结论:
- 血cfDNA和炎症调解剂协同诱导内皮损伤,细胞骨重塑和葡萄糖脱落,削弱了MD中的血液迷宫屏障.
- 向cfDNA或保存糖核糖体可能为Ménière病提供新的治疗策略.
- 基于cfDNA的标记物显示出监测MD内皮损伤的潜力.
相关概念视频
Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
Diabetic Neuropathy
DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...


