在炎症压力下对氧酸前体的差异性免疫反应:体外和体外研究
Irina S Fadeeva1,2, Anastasia Yu Teterina1, Igor V Smirnov1
1Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Leninskiy Prospect 49, Moscow 119334, Russia.
Cells
|January 28, 2026
概括
炎症显著改变了对酸骨移植 (CPs) 的免疫反应. 在健康患者中安全的材料可能会导致慢性炎症患者的纤维化或排斥等不良反应.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 再生医学是一种再生医学.
背景情况:
- 酸骨移植 (CPs) 的临床成功取决于免疫反应.
- 目前在健康人身上进行的生物相容性测试无法预测炎症患者的表现.
- 慢性炎症疾病会影响骨移植的疗效.
研究的目的:
- 研究炎症如何影响对仿生CP的免疫反应.
- 在炎症条件下比较二酸二水合物 (DCPD),八酸 (OCP) 和酸 (HAp) 的生物相容性.
- 建立与疾病相关的模型,以预测骨移植的临床结果.
主要方法:
- 在体外研究中使用了人体免疫细胞 (单细胞,巨细胞,淋巴细胞) 和介酶体 stromal 细胞 (MSCs),具有或没有预炎性激活.
- 在体内生物相容性通过在老鼠体内进行皮下植入来评估,有或没有完全弗洛恩德辅助剂 (CFA) 诱导的炎症.
- 通过细胞因子分泌 (TNF-α,IL-1β) 和组织学分析 (囊厚度,血管新生,瘤) 来评估免疫反应.
主要成果:
- 在正常情况下,CP显示最小的免疫反应.
- 炎症激活的巨细胞诱导了急性反应,增加了TNF-α和IL-1β.
- 在炎症大鼠中,DCPD促进了血管新生,炎症最小;HAp引起严重缩和排斥;OCP显示中间纤维化和血管新生.
- 所有CP在炎症动物中都开发了更厚的纤维囊.
结论:
- 炎症条件极大地影响了CP的生物相容性.
- 在健康模型中被认为是生物相容的材料可以在炎症患者中诱导纤维化或排斥.
- 与疾病相关的免疫挑战模型对于准确预测骨移植临床疗效和安全至关重要.
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