超表达HMOX1的介酶干细胞衍生的外体细胞通过促进血管生成和纤维细胞功能来促进糖尿病伤口愈合
Bomin Cheng1, Xiaorong Song1, Lin Yin2
1Chinese Medicine Health Management Center, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, 518033, China.
Biochemical and biophysical research communications
|November 25, 2023
概括
带有血氧酶-1 (HO-1) 的介质干细胞衍生外体 (MSC-Exos) 显著加快了糖尿病伤口愈合. 埃克索-HO-1增强了细胞活性和促进了血管生成,为糖尿病伤口提供了有前途的治疗策略.
科学领域:
- 再生医学是一种再生医学.
- 细胞生物学 细胞生物学
- 生物技术是生物技术.
背景情况:
- 异构体 (Exos) 正在研究它们的潜力,以提供活性分子,促进血管生成和加速糖尿病伤口愈合.
- 已知由HMOX1编码的血氧酶-1 (HO-1) 通过促进血管新生来增强糖尿病 (DM) 中的伤口愈合.
- 需要进一步探索HO-1在调节糖尿病伤口愈合的作用,通过介质干细胞衍生的外生体 (MSC-Exos).
研究的目的:
- 调查通过MSC-Exos输送的HMOX1是否可以增强糖尿病伤口愈合.
- 评估HO-1丰富的MSC-Exos在糖尿病伤口模型中促进血管生成和加速伤口关闭的治疗潜力.
主要方法:
- 隔离了介质干细胞 (MSCs),并以特定的标记蛋白,低免疫性和多差异化潜力为特征.
- 在MSC-Exos中成功输入了HO-1蛋白,这与对照外体 (Exos) 相比,在Exo-HMOX1中HO-1表达率更高的证实了这一点.
- 在体外研究评估了EXO-HMOX1对纤维细胞,角质细胞和人静脉内皮细胞 (HUVEC) 增殖,迁移和血管生成的影响. 在体内研究中使用了一种糖尿病伤口小鼠模型,用皮下注射PBS,Exo或Exo-HMOX1.
主要成果:
- Exo-HMOX1显著促进了纤维细胞和角质细胞的增殖和迁移,并在体外增强了HUVECs的血管生成能力.
- 与PBS和Exo组相比,用Exo-HMOX1治疗的糖尿病小鼠表现出加速的伤口愈合,改善的再上皮质化,增强的原沉积和增加的血管生成.
- 在MSC-Exos中成功输入HO-1蛋白,证实其作为MSC分泌蛋白质的作用.
结论:
- 富含HO-1的MSC-Exos (Exo-HMOX1) 在加速糖尿病伤口愈合方面显示出显著的治疗潜力.
- Exo-HMOX1增强了参与伤口修复的关键细胞的活动,包括纤维细胞,角质细胞和内皮细胞.
- 这些发现突出了Exo-HMOX1作为促进血管生成和改善糖尿病伤口管理结果的有希望的策略.
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