介素-18结合蛋白调节巨细胞激活和巨细胞诱导的风湿性关节炎骨质结晶发生
Hong Ki Min1, Ji-Yeon Lee2, Sang-Heon Lee1
1Division of Rheumatology, Department of Internal Medicine, Research Institute of Medical Science, Konkuk University School of Medicine, Seoul, Republic of Korea.
Clinical and experimental rheumatology
|July 26, 2024
概括
介素-18结合蛋白 (IL-18BP) 有效地降低了巨细胞激活和骨质细胞生成,这是类风湿性关节炎 (RA) 中的关键过程. 这表明IL-18BP.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 细胞生物学 细胞生物学
背景情况:
- 巨细胞激活有助于类风湿性关节炎 (RA) 的炎症反应和骨质侵蚀.
- 介素-18结合蛋白 (IL-18BP) 以其抗炎性质而闻名.
- 了解IL-18BP在调节巨细胞活性中的作用,对于RA的发病过程至关重要.
研究的目的:
- 为了研究IL-18BP对巨细胞激活的影响.
- 为了评估IL-18BP在RA的背景下对巨细胞诱导的骨质结晶形成的影响.
主要方法:
- 巨细胞被IL-33激活,并用不同度的IL-18BP进行治疗.
- 通过流式细胞计量分析了母细胞增殖,亡和亡.
- 与酶相关的免疫吸收试验 (ELISA) 测量了炎症媒介和骨质结晶性因素.
- 来自RA患者的单细胞与激活的巨细胞和IL-18BP共同培养,以评估骨质细胞形成和骨质再吸收.
主要成果:
- IL-18BP显著抑制了巨细胞的增殖,酶和基酶的表达.
- 矩阵金属蛋白酶 (MMP) -3/9,IL-17A,IL-6,TNF-α和可溶性RANKL (sRANKL) 的水平被IL-18BP降低.
- IL-18BP抑制了IL-33诱导的巨细胞激活,骨质细胞分化和骨质再吸收.
- 骨质细胞相关基因 (TRAP,ATP6v0d2,RANK,cathepsin K) 的表达被IL-18BP降低.
结论:
- IL-18BP 显示出对质细胞激活的强烈抑制作用.
- IL-18BP有效地抑制了巨细胞介导的骨质细胞生成.
- 这些发现表明IL-18BP在治疗类风湿性关节炎方面具有潜在的治疗作用.
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