...
首页> 外文期刊>Biomaterials >Cell behavior on a CCN1 functionalized elastin-mimetic protein polymer
【24h】

Cell behavior on a CCN1 functionalized elastin-mimetic protein polymer

机译:CCN1功能化弹性蛋白模拟蛋白聚合物上的细胞行为

获取原文
获取原文并翻译 | 示例
           

摘要

We report the design of an elastin-mimetic triblock copolymer with the ability to guide endothelial cell adhesion, spreading, and migration while maintaining the elastomeric properties of the protein polymer. The V2 ligand sequence from matricellular protein CCN1 (cysteine-rich 61, CYR61) was multimerized and cloned into elastin polymer LysB10, creating LysB10.V2. Cell adhesion studies demonstrated that a LysB10.V2 surface density of at least 40pmol/cm 2 was required to elicit cell attachment. Peptide blocking studies confirmed V2 specific engagement with integrin receptor α vβ 3 (P0.05) and we observed the formation of actin stress fiber networks and vinculin clustering, characteristic of focal adhesion assembly. Haptotatic migration assays demonstrated the ability of LysB10.V2 surfaces to stimulate migration of endothelial cells (P0.05). Significantly, we illustrated the ability of LysB10.V2 to support a quiescent endothelium. The CCN1 molecule functions to support many key biological processes necessary for tissue repair and thus presents a promising target for bioengineering applications. Collectively, our results demonstrate the potential to harness CCN1 specific function in the design of new scaffold materials for applications in regenerative medicine.
机译:我们报告了一种弹性蛋白模拟三嵌段共聚物的设计,该共聚物能够指导内皮细胞粘附,扩散和迁移,同时保持蛋白质聚合物的弹性。将来自基质细胞蛋白CCN1(富含半胱氨酸的61,CYR61)的V2配体序列进行多聚并克隆到弹性蛋白聚合物LysB10中,生成LysB10.V2。细胞粘附研究表明,至少40 pmol/cm 2的LysB10.V2表面密度需要引起细胞附着。肽阻断研究证实了V2与整联蛋白受体αvβ3的特异性结合(P <0.05),并且我们观察到了肌动蛋白应力纤维网络的形成和纽蛋白簇,这是粘着斑组装的特征。触觉迁移试验证明了LysB10.V2表面刺激内皮细胞迁移的能力(P <0.05)。重要的是,我们阐明了LysB10.V2支持静态内皮的能力。 CCN1分子的功能是支持组织修复所必需的许多关键生物学过程,因此为生物工程应用提出了有希望的目标。总的来说,我们的结果证明了在设计用于再生医学的新型支架材料中利用CCN1特定功能的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号