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Updated: Sep 12, 2025

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棕酸增强人体巨细胞的MSC免疫调节通过胺/CCL2轴在体外

Courteney Tunstead^1,2, Laura M Bitterlich^1,2, James A Ankrum^3,4

¹Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare, Ireland.

Stem cell research & therapy

|August 7, 2025

概括

暴露在Palmitate中增强了介质细胞 (MSCs) 抑制巨细胞炎症反应的能力. 这种改善的免疫调节通过涉及胺和CCL2的途径发生,为MSC治疗诸如肥胖等炎症状况提供了新的见解.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
生物化学生物化学

背景情况:

介酶体 stromal 细胞 (MSCs) 免疫调节对微环境因素很敏感.
由于改变了信号分子,肥胖症对MSC治疗提出了挑战.
增加的自由脂肪酸,如棕酸,可能会影响MSC功能.

研究的目的:

为了研究棕酸盐对巨细胞的MSC免疫调节的影响.
为了阐明背后的机制 palmitate诱导的MSC功能的变化.

主要方法:

MSCs被暴露在棕酸盐 (0.4mM) 中6-24小时.
评估了基因表达,蛋白质生产和功能能力.
使用胺合成抑制剂和CCL2来探测该途径.

主要成果:

暴露于palmitate的MSCs显示了巨细胞增强抑制TNFα的产生.
这种增强的抑制依赖于CCL2.2.
胺合成被确定为palmitate诱导途径的关键组成部分.

结论:

棕酸增强MSC免疫调节能力对巨细胞在体外.
胺/CCL2轴通过MSCs调节棕酸诱导的巨细胞免疫调节.

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Mesenchymal Stem Cells

Mesenchymal Stem Cells

Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...