聚二氧化核酸通过Akt激活增强了人体脱皮的叶牙的干细胞的生物活性
Yeo Gyun Yun1, Donghyeon Yeo1, Seong-Jin Shin2
1Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Republic of Korea; Department of Nanobiomedical Science and BK21 Four NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea.
Biochemical and biophysical research communications
|November 17, 2024
概括
聚二氧化核酸 (PDRN) 增强了人体脱皮脱落牙 (SHED) 的干细胞生物活性,改善了它们对关键四肢缺血的治疗潜力. 基于PDRN的SHED显示出新型干细胞疗法的前景.
科学领域:
- 再生医学是一种再生医学.
- 干细胞生物学 干细胞生物学
- 血管生物学 血管生物学
背景情况:
- 关键四肢缺血症 (CLI) 提出了重大的治疗挑战,临床试验的成功有限.
- 目前用于CLI的干细胞疗法具有有限的疗效和低的患者存活率.
- 氧化应激会影响干细胞功能和缺血条件下的治疗结果.
研究的目的:
- 研究聚二氧化碳核酸 (PDRN) 对人类脱皮叶状牙 (SHED) 的干细胞生物活性的影响.
- 评估在后肢缺血的小鼠模型中PDRN原始化SHED的潜力.
- 阐明PDRN对SHED的影响背后的分子机制,重点关注Akt激活.
主要方法:
- 用聚二氧化核酸 (PDRN) 治疗SHED.
- 评估SHED的扩散,迁移,抗氧化能力和线粒体呼吸.
- 在活体评估中,使用了与移植SHED的小鼠后肢缺血模型.
- 药理上抑制阿克特信号通路.
主要成果:
- PDRN治疗显著增强了SHED的增殖,迁移,抗氧化特性和线粒体呼吸.
- 这些PDRN对SHED的有益作用是由Akt信号通路的激活介导的.
- 在体内,PDRN的使用改善了在小鼠后肢缺血模型中的缺血部位移植SHED的存活率和增殖率.
- 在缺血模型中,抑制Akt信号取消了PDRN对SHED的保护作用.
结论:
- 聚二氧化碳核酸 (PDRN) 有效地从人体脱皮叶状牙 (SHED) 的干细胞中获取干细胞,以增强它们的治疗潜力.
- 通过Akt通路激活,PDRN促进SHED生物活性和在缺血条件下生存.
- 基于PDRN的SHED代表了开发针对关键四肢缺血症的基于干细胞的新疗法的一个有前途的战略.
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