| 何小燕 何子瑜 顾姗姗 吴飞△ 白光.担载血管生长因子的乳液法纤维用于血管再生的研究[J].,2016,16(20):3809-3811 |
| 担载血管生长因子的乳液法纤维用于血管再生的研究 |
| Study on Encapsulation of Vascular Endothelial Growth Factor in Fibers byEmulsion Electrospinning in Angiogenesis |
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| DOI： |
| 中文关键词: 乳液法纤维膜 血管生长因子 血管再生 |
| 英文关键词: Emulsion method fibers VEGF Angiogenesis |
| 基金项目:国家自然科学基金项目（81102406） |
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| 中文摘要: |
| 目的：制备担载血管生长因子（VEGF）的乳液法静电纺丝纤维膜，对其开展一系列表征，从而研究其血管再生的潜能。方法：
通过W/O 乳液法制备担载VEGF的静电纺丝纤维膜，并对其形态、力学性质进行表征。用VEGF ELISA 分析方法对其体外释放
动力学进行研究。运用CCK-8 法检测乳液法静电纺丝纤维膜中VEGF的活性变化。结果：乳液法静电纺丝纤维膜呈现连通的三维
网状结构，平均直径为1 滋m，模拟了细胞外基质（ECM），最大拉伸应力为3.03± 0.66 MPa，具有良好的抗拉伸能力，能够支持细胞
的生长。乳液法纤维膜中VEGF在体外累积释放了14天，总释放量超过20000 pg，达到血管再生的有效浓度。CCK-8 结果显示，
乳液法纤维膜中的VEGF仍然保持较高的蛋白活性。结论：担载VEGF的乳液法静电纺丝纤维膜能够缓释出活性的蛋白，具有血
管再生的潜能。 |
| 英文摘要: |
| Objective:To study the potential of angiogenesis by preparing emulsion method electrospun fibers loading vascular
endothelial growth factor (VEGF) and carrying out a series of characterization.Methods:Electrospun fibers loading VEGF were prepared
by W/O emulsion method and were characterized in morphology and mechanical properties. The release kinetic of VEGF in electrospun
fibers was detected by ELISA method in vitro. By CCK-8 method, the changes of active situation of VEGF in electrospun fibers were
investigated.Results:Emulsion method electrospun fibers were connected by three-dimensional network structure with average diameter
1 滋m, which simulated the extracellular matrix (ECM) and they had good tensile strength which could support cell growth, their
maximum tensile stress was 3.03± 0.66 MPa. VEGF in emulsion method fibers had cumulative release of 14 days, the total amount was
over 20000 pg which could reach the effective concentration of angiogenesis. The result of CCK-8 tests showed that VEGF loaded in
emulsion method fibers still maintained high activity.Conclusion:Emulsion method electrospun fibers loading VEGF had a
sustained-release of active protein, which had the potential of angiogenesis. |
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