首页> 外文期刊>Advanced Functional Materials >Functionalized Microparticles Producing Scaffolds in Combination with Cells
【24h】

Functionalized Microparticles Producing Scaffolds in Combination with Cells

机译:功能化的微粒与细胞结合产生支架。

获取原文
获取原文并翻译 | 示例
           

摘要

The development of biologically instructive biomaterials with application for tissue regeneration has become the focus of intense research over the last years. This work reports a novel approach for the production of three-dimensional constructs for tissue engineering applications based on the assembly of chitosan microparticles exhibiting specific biological response with cells. Chitosan microparticles with a size range between 20 and 70 |im are functionalized with platelet derived growth factor (PDFC-BB). The functionaliza-tion is achieved by previous immobilization of an anti-PDGF-BB antibody, using a water-soluble carbodiimide. When incubated with a cocktail of growth factors-platelet lysates, the previously functionalized particles are able to target PDCF-BB from the protein mixture. In vitro studies are carried out focusing on the ability of these systems to promote the assembly into a stable 3D construct triggered by the presence of human adipose stem cells, which act as crosslinker agents and induce the formation of a hydrogel network. The presence of immobilized growth factors gives to this system a biological functionality towards control on cell function. It is also bioresponsive, as cells drive the assembly process of the microgel. These versatile biomimetic microgels may provide a powerful tool to be used as an injectable system for non-invasive tissue engineering applications with additional control over cellular function by creating specific microenvironments for cell growth.
机译:近年来,具有生物学指导意义的生物材料的开发及其在组织再生中的应用已成为广泛研究的重点。这项工作报告了一种新的方法,用于生产组织工程应用的三维构建体,基于组装的壳聚糖微粒对细胞具有特定的生物学反应。用血小板衍生的生长因子(PDFC-BB)功能化大小在20至70μm之间的壳聚糖微粒。通过使用水溶性碳二亚胺预先固定抗PDGF-BB抗体可实现功能化。当与生长因子-血小板裂解物混合物一起孵育时,先前功能化的颗粒能够从蛋白质混合物中靶向PDCF-BB。进行了体外研究,重点研究了这些系统促进由人体脂肪干细胞的存在触发的组装成稳定的3D构建体的能力,所述人类脂肪干细胞充当交联剂并诱导水凝胶网络的形成。固定的生长因子的存在使该系统具有控制细胞功能的生物学功能。它也具有生物反应性,因为细胞驱动了微凝胶的组装过程。这些通用的仿生微凝胶可提供强大的工具,用作非侵入性组织工程应用中的可注射系统,并通过为细胞生长创造特定的微环境来对细胞功能进行额外控制。

著录项

  • 来源
    《Advanced Functional Materials》 |2014年第10期|1391-1400|共10页
  • 作者单位

    3B's Research Croup - Biomaterials Biodegradables and Biomimetics University of Minho AvePark, Zona Industrial da Gandra, S. CISudio do Barco, 4806-909, Caldas das Taipas - Guimaraes, Portugal ICVS/3B's, PT Government Associated Laboratory Braga/Guimaraes, Portugal;

    3B's Research Croup - Biomaterials Biodegradables and Biomimetics University of Minho AvePark, Zona Industrial da Gandra, S. CISudio do Barco, 4806-909, Caldas das Taipas - Guimaraes, Portugal ICVS/3B's, PT Government Associated Laboratory Braga/Guimaraes, Portugal;

    3B's Research Croup - Biomaterials Biodegradables and Biomimetics University of Minho AvePark, Zona Industrial da Gandra, S. CISudio do Barco, 4806-909, Caldas das Taipas - Guimaraes, Portugal ICVS/3B's, PT Government Associated Laboratory Braga/Guimaraes, Portugal;

    3B's Research Croup - Biomaterials Biodegradables and Biomimetics University of Minho AvePark, Zona Industrial da Gandra, S. CISudio do Barco, 4806-909, Caldas das Taipas - Guimaraes, Portugal ICVS/3B's, PT Government Associated Laboratory Braga/Guimaraes, Portugal;

    3B's Research Croup - Biomaterials Biodegradables and Biomimetics University of Minho AvePark, Zona Industrial da Gandra, S. CISudio do Barco, 4806-909, Caldas das Taipas - Guimaraes, Portugal ICVS/3B's, PT Government Associated Laboratory Braga/Guimaraes, Portugal;

    3B's Research Croup - Biomaterials Biodegradables and Biomimetics University of Minho AvePark, Zona Industrial da Gandra, S. CISudio do Barco, 4806-909, Caldas das Taipas - Guimaraes, Portugal ICVS/3B's, PT Government Associated Laboratory Braga/Guimaraes, Portugal;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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