介酶干细胞通过CTGF/FAK信号传递抑制卵巢纤维化,改善卵巢功能,在全身性红斑狼中起作用
Haiwei Zhang1, Hui Yang2, Yingyi Wu3
1Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Clinical College of Xuzhou Medical University, Nanjing, China.
Lupus science & medicine
|August 5, 2025
概括
带衍生中酶干细胞 (UC-MSCs) 通过抑制纤维化来治疗狼小鼠的卵巢功能障碍. 这种疗法通过向CTGF/FAK通路恢复卵巢功能,为自身免疫相关的不孕症提供了潜在的治疗方法.
科学领域:
- 免疫学和再生医学
- 生殖生物学和内分泌学
背景情况:
- 系统性红斑狼 (SLE) 是一种多系统的自身免疫性疾病,导致慢性炎症和器官损伤,尤其是卵巢功能障碍.
- 卵巢功能障碍在SLE有助于不孕,需要治疗策略来恢复卵巢功能和减轻纤维化.
研究的目的:
- 在狼小鼠模型中,研究带衍生介质干细胞 (UC-MSCs) 在改善卵巢功能障碍方面的治疗疗效.
- 通过调节特定的分子通路来抑制纤维化来确定UC-MSC是否恢复卵巢功能.
主要方法:
- 在狼小鼠中UC-MSC移植 (MRL/lpr).
- 血清性激素的量化 (ELISA),卵巢组织的组织学评估 (卵泡数,通过H&E和Mason三色染色的纤维化).
- 对炎症性细胞因子,纤维化因子,激素受体和信号蛋白的分析 (qPCR,西部斑,免疫光,免疫组织化学).
- 使用初级颗粒细胞 (GCs) 和人类GC线 (KGN) 进行体外研究,以探索CTGF/FAK通路和纤维化.
主要成果:
- 治疗UC-MSC显著降低了促炎性细胞因子 (Tnf-α,Il-1β) 和纤维化标志物 (Ctgf,α-Sma),同时上调激素受体 (Amh,Esr1,Esr2).
- UC-MSC移植减少了T细胞透,C3补充和IgG水平,并增加了调节性T细胞,表明免疫调节.
- 在体外,UC-MSC抑制了GC中的FAK-Tyr576/577酸化和纤维性标记物,证明了涉及CTGF/FAK通路的机制.
结论:
- 在狼小鼠中,UC-MSC治疗有效改善了卵巢功能障碍和减弱的卵巢纤维化.
- 治疗效果通过调节连接组织生长因子 (CTGF) /焦点粘附激酶 (FAK) -Tyr576/577酸化途径进行调节.
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