研究性激素对巨细胞偏极化的影响
Sophie Enright1, Geoff H Werstuck1,2
1Thrombosis and Atherosclerosis Research Institute, 237 Barton Street E, Hamilton, ON L8L 2X2, Canada.
International journal of molecular sciences
|January 23, 2024
概括
像17β-雌激素和这样的性激素会影响巨细胞的两极分化,影响动脉样硬化的发展. 雌醇显示出一种保护作用,可能解释心血管疾病中的性别差异.
科学领域:
- 免疫学 免疫学 免疫学
- 内分泌学 在内分泌学.
- 心血管生物学 心血管生物学
背景情况:
- 已确定的性别差异存在于心血管疾病 (CVD) 的发展和进展.
- 性激素影响巨细胞两极分化和益动脉原性功能的确切机制仍然不完全理解.
研究的目的:
- 研究17β-雌激醇和对巨细胞两极分化的直接影响.
- 确定性激素如何调节巨细胞炎症反应和与动脉样硬化相关的迁移.
主要方法:
- 来自小鼠骨髓的单细胞被分化为巨细胞.
- 巨细胞先用17β-雌激醇,或载体进行预处理,然后被两极分化.
- 评估了巨细胞标记物的基因表达,炎症性细胞因子IL-1β和细胞迁移.
主要成果:
- 性激素显著改变了巨细胞两极分化,炎症标志物表达和迁移.
- 17β-雌激醇损害了炎症基因表达和IL-1β的产生,同时增强了抗炎症标志物和迁移.
- 激素提高了抗炎mRNA的表达,并降低了IL-1β的产生.
结论:
- 性激素直接调节巨细胞的表型和功能,影响动脉生成.
- 17β-雌激醇表现出对炎症的保护作用,并促进巨细胞迁移,可能导致心血管疾病中观察到的性别差异.
- 这些发现突出了针对性激素途径在动脉样硬化治疗中的潜在治疗途径.
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