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在糖尿病中调节AMSC/CXCR4衍生的外体和miRNA-320

Shenhao Wu¹, Xiaomei Luo², Yanwen Liu¹

¹The Fifth Affiliated Hospital of Xinjiang Medical University, Urumqi, 830000, China.

Irish journal of medical science

|September 3, 2025

概括

通过增加miRNA320,CXCR4修饰干细胞释放出外体,通过增加miRNA320,减少糖尿病血管异常生长,为糖尿病血管并发症提供了新的治疗方法.

科学领域:

生物医学工程
复原医学
分子生物学

背景情况:

糖尿病血管并发症由于治疗效率有限和复缩率高而带来重大挑战.
在高血糖症下,病态内皮增殖有助于这些并发症.
用CXCR4 (AMSCs/CXCR4) 修改的脂肪基衍生干细胞 (AMSCs) 正在研究它们的治疗潜力.

研究的目的:

阐明AMSC/CXCR4调节糖尿病内皮增殖的机制.
确定糖尿病相关血管疾病早期干预的新疗法目标.
探索AMSCs/CXCR4分泌的外体的作用.

主要方法:

产生CXCR4过度表达等离子体并转化为AMSC以增强外体分泌.
与高葡萄糖处理的人类静脉内皮细胞 (HUVEC) 的共培养.
细胞活性的评估,细胞亡,AKT/mTOR途径的西斑分析,以及对miRNA320,VEGF和IGF-1表达的qRT- PCR.

主要成果:

AMSCs/ CXCR4外体抑制高葡萄糖诱导的内皮细胞增殖和亡的增加.
高葡萄糖下调的miRNA320,通过AMSCs/CXCR4外体恢复.
恢复的miRNA320抑制了VEGF和IGF-1表达,独立于AKT/ mTOR途径.

结论:

CXCR4增强了AMSCs的外体释放,提供治疗载荷.
通过miRNA320,AMSCs/CXCR4衍生的外体抑制IGF-1/VEGF活动,独立于AKT/mTOR信号传递.
在糖尿病血管功能障碍中确定了CXCR4- miRNA320轴,这表明基于外体的治疗和miRNA320是有前途的策略.

关键词:

AKT/mTOR路径脂肪酶衍生干细胞 (AMSC)在CXCR 糖尿病血管并发症人体静脉内皮细胞 (HUVEC)其他:维基基因/IGF-1

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