...
【24h】

Endothelial cell reaction on a biological material.

机译:内皮细胞对生物材料的反应。

获取原文
获取原文并翻译 | 示例
           

摘要

The successful clinical application of materials should involve detailed investigations on interaction between them and tissue with which they will contact. We examined herein the behavior of endothelial cells (ECs) on a collagen material, using histological and immunohistochemical methods. We used isolated human umbilical cord vein cells (HUVECs) identified by means of endothelial-specific antibodies. Cells were seeded in a standard density on a collagen membrane (Lycoll, Resorba, Nuernberg, Germany) and on gelatin-coated, control plastic surfaces, after two passages. These were then maintained for periods of 1, 7, or 14 days. The cells adhered, spread, and proliferated, and within 24 h started forming a subconfluent monolayer. We observed that the cultured cells expressed integrins (alpha5beta1 and alpha(v)beta3) and synthesized fibronectin. After 14 days, we could observe a confluent layer of ECs. We could conclude that the collagen material supported growth and attachment of endothelial cells. In addition, the attachment seemed to be most related to the fibronectin synthesized by the cells and to its highly expressed receptor (the alpha5beta1 integrin); even though this is not the only protein related to this adhesion, we observed that our cultured HUVECs did not synthesize vitronectin.
机译:材料的成功临床应用应包括对其与将要接触的组织之间相互作用的详细研究。我们在这里使用组织学和免疫组织化学方法检查了胶原材料上的内皮细胞(EC)的行为。我们使用了通过内皮特异性抗体鉴定的分离人脐带静脉细胞(HUVEC)。经过两次传代后,将细胞以标准密度接种在胶原蛋白膜(Lycoll,Resorba,纽伦堡,德国)上,并涂在明胶涂层的对照塑料表面上。然后将其维护1、7或14天。细胞粘附,扩散和增殖,并在24小时内开始形成亚汇合单层。我们观察到培养的细胞表达整合素(alpha5beta1和alpha(v)beta3)和合成的纤连蛋白。 14天后,我们可以观察到EC的融合层。我们可以得出结论,胶原材料支持内皮细胞的生长和附着。此外,这种附着似乎与细胞合成的纤连蛋白及其高度表达的受体(α5beta1整合素)最相关。即使这不是与此粘附相关的唯一蛋白质,我们也观察到我们培养的HUVEC不能合成玻连蛋白。

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