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介酶体 stromal 细胞通过CCL2依赖的巨细胞两极分化缓解了全身性红斑狼

Xin Wen¹, Genhong Yao², Yujie Zhou¹

¹Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, China Pharmaceutical University, Nanjing 210008, China; Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China.

Cellular immunology

|November 4, 2025

概括

介酶体 stromal 细胞 (MSC) 通过增加CCL2来治疗狼,这是一种对其免疫抑制功能至关重要的蛋白质. 这项研究揭示了CCL2在恢复巨细胞平衡中的作用,为系统性红斑狼 (SLE) 的MSC治疗提供了洞察力.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
类风湿病学类风湿病学

背景情况:

系统性红斑狼 (SLE) 是一种严重的自身免疫性疾病,有效治疗方法有限.
介质细胞 stromal 细胞 (MSCs) 显示出SLE治疗的希望,但它们的治疗机制仍然不清楚.
之前的研究表明,MSCs对SLE是安全有效的,需要更深入地了解它们的作用.

研究的目的:

调查CCL2在SLEMSC治疗机制中的作用.
确定MSC中的CCL2表达是否影响其免疫抑制活性和SLE模型中的疗效.

主要方法:

在临床MSCs,初级MSCs,老年MSCs和SLE患者衍生的BM-MSCs中比较CCL2表达.
产生CCL2缺乏的MSC以评估其免疫抑制功能在体外 (PBMC测定) 和体内 (SLE小鼠模型).
利用转录基因分析来识别受MSCs中CCL2缺乏影响的基因.
在实验室中研究了MSC介导的M1/M2巨细胞极化平衡的恢复.

主要成果:

临床MSC显示较高的CCL2表达;SLE患者的BM-MSC与对照组相比,CCL2下降.
缺乏CCL2的MSCs表现出免疫抑制活性受损,并且未能在小鼠模型中缓解SLE症状.
转录组分析显示,CCL2会影响与化学反应相关的基因,包括单细胞化学反应.
在体外,MSCs通过CCL2恢复了M1/M2巨细胞极化失衡.

结论:

在SLE中,CCL2是MSCs免疫抑制功能的关键调解者.
在MSC中CCL2缺陷在SLE模型中取消了它们的治疗潜力.
通过CCL2,MSCs调节巨细胞极化,有助于SLE治疗的有效性.

关键词:

在CCL2中,我们可以使用CCL2.巨细胞是一个巨细胞.介质细胞层细胞是介质细胞层细胞.系统性红血性狼 (Systemic lupus erythematosusus) 是一种全身性狼.

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