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超的糖尿病骨髓损害了BMSCs通过TRPV2-介导的细胞骨核机械转导来进行骨质生成

Yao Wen¹, Xinhui Zheng¹, Jieliu Li¹

¹Chongqing Key Laboratory of Oral Diseases, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Municipal Health Commission Key Laboratory of Oral Biomedical Engineering, Stomatological Hospital of Chongqing Medical University, Chongqing, 401147, P. R. China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|December 23, 2025

概括

糖尿病会改变骨髓液体,损害干细胞的再生. 增加的粘度会激活TRPV2通道,破坏细胞结构和骨愈合. 准这种途径可能会改善糖尿病患者的骨修复.

科学领域:

生物医学工程生物医学工程
细胞生物学细胞生物学
整形外科整形外科整形外科

背景情况:

糖尿病骨缺陷由于骨髓微环境变化而具有较差的再生能力.
骨髓中的机械信号对于骨再生至关重要.
糖尿病矩阵异常对骨髓衍生中介质干细胞 (BMSCs) 的影响尚未完全理解.

研究的目的:

研究糖尿病诱导的骨髓细胞外基质 (ECM) 异常如何影响BMSC功能.
阐明连接ECM粘度与BMSC骨质性潜力的机械传导途径.
探索TRPV2 (暂时受体潜能瓦尼洛伊德2) 作为糖尿病骨病的治疗点.

主要方法:

对糖尿病患者和健康BMSC进行比较机械生物学分析.
研究TRPV2,CaMKII,cofilin和actin细胞骨动态的作用.
核膜变形,染色质结构和基因组修饰的评估 (H3K9me3).
对TRPV2抑制对BMSC骨质性潜力的影响的评估.

主要成果:

糖尿病诱导高粘性骨髓ECM,通过TRPV2.2增加BMSC机械敏感性.
这导致流入,细胞骨重塑和核膜变形.
改变的染色质结构和增加的H3K9me3抑制骨质基因表达.
在糖尿病BMSC中,TRPV2抑制恢复了染色质的可访问性和骨质生成潜力.

结论:

一个新的机械病理轴存在,糖尿病ECM高粘度通过TRPV2.2损害BMSC功能.
这条通路从细胞骨传递机械信号到染色体,抑制骨再生.
针对TRPV2的机械调节为糖尿病骨质炎的潜在治疗策略.

关键词:

在 TRPV2 频道上播放.活动性细胞骨骨髓中介细胞干细胞骨髓中介细胞干细胞糖尿病骨质病症糖尿病骨质病症机械传导机械传导

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