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骨肌细胞增强了糖尿病小鼠移植岛屿的功能

Takeshi Kado¹, Yoshito Tomimaru¹, Shogo Kobayashi¹

¹Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan.

Journal of diabetes research

|May 27, 2024

概括

骨肌细胞通过促进血管生长和维持岛屿功能来改善糖尿病小鼠的岛屿移植结果. 这表明一种潜在的新方法来治疗1型糖尿病.

科学领域:

再生医学是一种再生医学.
内分泌学在内分泌学.
血管生物学血管生物学

背景情况:

岛屿移植 (ITx) 是一种治疗1型糖尿病 (T1DM) 的方法.
移植损失限制了ITx.后的长期胰岛素独立性.
需要策略来改善移植的生存和功能.

研究的目的:

调查骨肌芽细胞在增强小岛移植功能和生存方面的潜力.
探索神经细胞可能支持移植小岛的机制.

主要方法:

在体外分析肌细胞分泌的因素及其对小岛细胞的影响.
在糖尿病小鼠模型中的小岛和肌细胞的体内移植.
评估血糖水平,胰岛素阳性区域,微血管密度 (CD31) 和信号通路 (JAK-STAT).

主要成果:

肌细胞在体外分泌出亲血管性因子 (VEGF,HGF,SDF-1α).
携带肌细胞移植在体内显著降低血糖水平.
增强的胰岛素阳性区域和增加的微血管密度被观察到与肌细胞细胞的移植中.
在共同移植的小岛上观察到JAK-STAT信号通路的激活.

结论:

骨肌细胞促进血管新生,并保持小岛细胞的表型和功能.
髓母细胞通过间接 (血管生成) 和直接 (JAK-STAT信号传递) 机制增强小岛移植的生存和功能.
骨肌芽细胞的联合移植为改善T1DM治疗中岛屿移植疗效提供了一个有希望的策略.

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