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疼痛调解剂NGF通过PI3K/AKT通路改善了状细胞细胞外细胞矩阵合成

Mengling Wang¹, Jie Lian¹, Maoqing Ye²

¹Department of Rehabilitation, Huadong Hospital Affiliated to Fudan University, Shanghai, 200040, China.

Journal of orthopaedic surgery and research

|February 27, 2025

概括

神经生长因子 (NGF) 在特定度下通过PI3K/AKT通路促进状细胞细胞外细胞基质合成. 这表明NGF在骨关节炎中可能具有有益作用,这与一些临床观察相反.

科学领域:

生物化学生物化学
细胞生物学细胞生物学
生物医学科学生物医学科学

背景情况:

神经生长因子 (NGF) 与骨关节炎的疼痛有关.
抗NGF疗法表现出止痛作用,但与软骨退化有关.
在状细胞功能和软骨完整性中NGF的确切作用尚未完全理解.

研究的目的:

调查NGF对冠状细胞的直接影响.
阐明NGF对状细胞矩阵合成的影响背后的分子机制.
为了澄清NGF表达和软骨健康之间的关系.

主要方法:

ATDC5细胞被分化为冠状细胞,并用不同度的NGF (0.5-10 ng/mL) 进行治疗.
使用CCK-8试验评估细胞增殖.
细胞外矩阵合成,蛋白质表达 (Sox9,aggrecan,II型原蛋白) 和信号通路 (PI3K/AKT) 通过使用西式斑点,免疫光和特定抑制剂 (GNF5837,LY294002) 进行分析.

主要成果:

NGF (0.5-5 ng/mL) 剂量取决于增强状细胞细胞外细胞矩阵合成,包括aggrecan,II型原和Sox9表达.
NGF激活了PI3K/AKT信号通路.
TRKA和PI3K的抑制剂逆转了NGF的矩阵增强作用.
细胞增殖没有受到NGF治疗的影响.

结论:

度为0.5-5ng/mL的NGF在促进状细胞细胞外基质合成方面发挥了有益的作用.
PI3K/AKT信号通路在中介NGF对冠状细胞的合成效应方面发挥着重要作用.
这些发现凸显了NGF在骨关节炎中的复杂作用,在细胞水平上具有潜在的冠状腺保护功能.

关键词:

合成代谢 (Anabolism) 是一种冠状细胞 (chondrocytes) 是一种细胞.神经生长因子的神经生长因子骨关节炎是一种骨关节炎.

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