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在适当的时间顺序释放血管内皮生长因子和血小板衍生生长因子,以改善血管生成

Yu Liu¹, Ying Luo², Jianchen Zhang¹

¹Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, PR China.

Acta biomaterialia

|March 9, 2025

概括

一个新的系统可以控制血管内皮生长因子 (VEGF) 和血小板衍生生长因子 (PDGF) 的顺序释放,以增强治疗性血管生成. 该研究确定PDGF释放的最佳时间是VEGF注射后5-7天.

科学领域:

生物材料科学生物材料科学
再生医学是一种再生医学.
药物输送系统药物输送系统

背景情况:

连续释放VEGF和PDGF对于治疗性血管生成至关重要.
在实现明显的连续释放和确定PDGF最佳时间方面存在挑战.

研究的目的:

设计一个时间控制的释放系统,用于连续的VEGF和PDGF输送.
确定PDGF释放的最佳时间,以最大限度地提高治疗性血管生成.

主要方法:

使用的酸/Pluronic F127 (TA/F127) 层层的薄膜作为可侵蚀的可控制释放的涂层.
为顺序释放VEGF和PDGF而制备的药物载体.
在下肢缺血症的小鼠模型中评估了血管新生效应.

主要成果:

通过TA/F127系统,实现了VEGF和PDGF的明显连续释放.
通过调整TA/F127涂层厚度来控制释放延迟时间.
优化PDGF释放时间 (5-7天VEGF后) 显著提高治疗效率.

结论:

一个TA/F127 LBL膜系统有效地实现了对VEGF和PDGF的可控连续释放.
对PDGF应用的最佳时间对于增强治疗性血管生成至关重要.
这项研究建立了一个精确的窗口,用于PDGF的管理,以改善再生疗法.

关键词:

增长因子增长因子一层一层的薄膜.顺序释放的释放方式治疗性血管生成治疗性血管生成

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