通过冷紫外线设计的多孔凝甲基烯酸凝促进骨质生成和血管生成
Haoran Wang1,2, Jianfeng Li1, Ran Qin1
1Department of Oral and Maxillofacial Surgery, the Affiliated Stomatological Hospital of Nanjing Medical University; State Key Laboratory Cultivation Base of Research, Prevention and Treatment for Oral Diseases; Jiangsu Province Engineering Research Centre of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 210029, China.
一种新型的冷紫外线修饰的等甲基酸盐 (GelMA) 凝通过增强骨质生成和血管生成来促进膜骨再生. 这种支架为下重建和组织工程应用提供了一个有前途的解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 再生医学是一种再生医学.
背景情况:
- 膜骨缺陷的重建在牙科中提出了重大挑战.
- 现有的凝支架通常需要复杂的准备,可能会留下残留产品.
- 需要有效和生物相容的脚手架来进行骨再生.
研究的目的:
- 使用冷紫外线 (FUV) 方法开发一种新的热敏/光敏等甲基酸盐 (GelMA) 凝支架.
- 为了评估FUV-GelMA凝的制造能力,生物相容性和结构性质.
- 评估FUV-GelMA凝在促进下重建,骨质生成和血管生成方面的有效性.
主要方法:
- 使用冷紫外线 (FUV) 方法合成一个多孔的GelMA凝.
- 在体外评估人类骨髓介质干细胞 (hBMSCs) 的骨质分化和人类静脉内皮细胞 (HUVECs) 的血管生成.
- 在体内评估,使用鼠标模型进行下重建和血管化,包括涉及p38基因激活蛋白激酶 (MAPK) 途径的机制研究.
主要成果:
- FUV-GelMA凝表现出快速固化 (15分钟),有利的制造,生物相容性和可调节的巨孔结构.
- 试验室研究表明,FUV-GelMA凝促进了hBMSCs的骨质分化和HUVECs的血管生成.
- 在体内结果表明,凝支架促进了下的重建和血管化,p38 MAPK通路对这些效应至关重要.
结论:
- FUV-GelMA凝代表了膜骨缺陷重建的新且有效的支架.
- 这种支架支持骨质生成和血管生成,由p38 MAPK途径介导.
- 开发的FUV-GelMA凝为未来组织再生的临床应用提供了有希望的方法.
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