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胰岛素敏感性的内皮代谢控制通过居民巨细胞

Jing Zhang¹, Kim Anker Sjøberg², Songlin Gong¹

¹Laboratory of Exercise and Health, Department of Health Sciences and Technology, Swiss Federal Institute of Technology (ETH Zürich), Zürich, Switzerland.

Cell metabolism

|September 13, 2024

概括

内皮细胞通过调节巨细胞来控制骨肌肉中的葡萄糖吸收. 这一发现揭示了一个新的机制,将血管新陈代谢与肌肉胰岛素敏感性联系起来.

科学领域:

内分泌学在内分泌学.
代谢过程中的代谢.
免疫学免疫学免疫学

背景情况:

内皮细胞 (ECs) 对于营养物质的运输和器官的恒温至关重要.
对于ECs在维持葡萄糖平衡中的具体作用尚不清楚.
骨肌 ECs 积极调节葡萄糖吸收和胰岛素敏感性.

研究的目的:

为了研究内皮糖运输体1 (Glut1) 在骨肌肉葡萄糖平衡中的作用.
阐明ECs影响肌肉胰岛素敏感性的机制.
为了确定ECs,巨细胞和葡萄糖代谢之间的相互作用.

主要方法:

在小鼠中,内皮Glut1 (Glut1ΔEC) 的遗传耗尽.
高脂肪饮食干预改变内皮代谢.
对骨质素 (OPN) 分泌和巨细胞活动的分析.
评估肌肉对胰岛素的敏感性.

主要成果:

减少内皮质Glut1增加了OPN分泌,促进了巨细胞的激活和增殖.
巨细胞的积累损害了骨肌肉的胰岛素敏感性.
在Glut1ΔEC小鼠中,Spp1的共删除挽救了胰岛素敏感性.
内皮葡萄糖代谢通过血清代谢影响OPN的产生.

结论:

内皮质Glut1通过对居住巨细胞的血管代谢控制来控制骨肌肉的葡萄糖稳态.
内皮细胞调节巨细胞的表型和功能,影响肌肉对胰岛素的敏感性.
这项研究确立了居住肌肉巨细胞与维持葡萄糖平衡之间的直接联系.

关键词:

这就是 GLUT1 的原因.内皮细胞是内皮细胞.内皮代谢的内皮代谢.这是一种炎症炎症炎症炎症.胰岛素敏感性胰岛素敏感性骨质疏松剂是一种骨质疏松剂.居住的巨细胞.血清蛋白质是什么血清蛋白质这是骨肌肉的骨架肌肉.血管系统血管系统

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