通过由寡酸替代的多聚诺基酶抑制细胞对纤维内克的粘附
H D Maynard1, S Y Okada, R H Grubbs
1Arnold and Mabel Beckman Laboratories of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
Journal of the American Chemical Society
|July 18, 2001
概括
结合特定序的新型聚合物显著抑制细胞粘附. 具有多种类型的共聚物体显示出增强的生物活性,证明了聚合物材料在细胞粘附研究中的潜力.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 细胞生物学 细胞生物学
背景情况:
- 纤维肌菌素的RGD含有域通过整体因子调解细胞粘附.
- 聚合物可以与一起功能化,以调节生物相互作用.
- 了解多价值联体效应对于生物材料设计至关重要.
研究的目的:
- 为了合成和评估具有RGD含有的序列的功能化的多诺基基.
- 为了研究这些聚合物的细胞粘附抑制活性.
- 为了比较同聚合物和配聚合物与单个或多个联体的疗效.
主要方法:
- 环开放元解聚合 (ROMP) 用于合成功能化的多子.
- 用GRGDS和PHSRN序列替换了聚合物.
- 使用IC50值量化对人类前皮纤维细胞粘附的抑制活性.
主要成果:
- 用GRGDS替代的多甲基显示出细胞粘附的强烈抑制.
- 一种含有GRGDS的同聚合物比自由更活跃.
- 一种含有GRGDS和PHSRN的共聚物表现出最高的抑制功效.
结论:
- 具有多种连接体类型的聚合物材料可以显著增强生物活性.
- ROMP是一种有效的合成定义良好的功能化共聚合物的方法.
- 这些发现突显了多价值聚合物联体控制细胞粘附的潜力.
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