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Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily  involved in a...

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Wet Chemistry and Peptide Immobilization on Polytetrafluoroethylene for Improved Cell-adhesion
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具有可调节的疏水性基质,用于最佳的细胞粘附.

Yuriy Snyder1, Mary Todd1, Soumen Jana1

  • 1Department of Chemical and Biomedical Engineering, University of Missouri, 1406 Rollins Street, Columbia, MO, 65211, USA.

Macromolecular bioscience
|August 23, 2024
PubMed
概括

将波洛克萨默 (P188) 和单 (Span80) 等表面活性剂添加到聚烯酸乙烯 (PCL) 电中,可增强材料的水友性和细胞粘附性,用于组织工程. 优化度是卓越性能的关键.

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
  • 组织工程是组织工程.

背景情况:

  • 电制造用于生物医学应用的纳米/微纤维材料.
  • 聚烯酸 (PCL) 是一种常见的聚合物,但其疏水性限制了使用.
  • 表面活性剂可以在不改变电荷密度的情况下改善PCL的特性.

研究的目的:

  • 为了研究非离子表面活性剂 (P188,Span80) 对PCL电的作用.
  • 评估这些表面活性剂对纤维形态和水友性的影响.
  • 评估改性PCL基质对细胞粘附和增殖的影响.

主要方法:

  • 将波洛克萨默 (P188) 和基单酸盐 (Span80) 纳入聚烯酸 (PCL) 溶液中.
  • 在PCL/P188和PCL/Span80纤维基板上进行电.
  • 纤维和毛孔大小的表征,以及基板水友性的评估.
  • 评估纤维细胞,内皮细胞和光滑肌肉细胞的粘附和增殖.

主要成果:

  • 在PCL/P188和PCL/Span80基板上成功进行电.
  • P188和Span80显著增强了基质的水友性.
关键词:
细胞粘附 细胞粘附电力旋转是指电力旋转.疏水性是指对水的疏水性.波洛克萨默斯 (Poloxamer) 是一个波洛克萨默斯 (Poloxamer) 公司.聚卡普罗拉克托尼 (polycaprolactone) 是一种具有多种成分的药物.索尔比坦单酸盐 80 80 种表面活性剂是一种表面活性剂.

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  • 纤维和毛孔大小保持在0.30%的P188度;更高的度会扩大纤维.
  • 较高的Span80度导致纤维更厚,更不均.
  • 这两种表面活性剂都改善了细胞粘附和增殖,而P188显示出更高的疗效.

    • 结论:

    • 精确的表面活性剂度对于优化电PCL基板至关重要.
    • 在组织工程中,P188和Span80增强了PCL的水友性和生物相容性.
    • 优化PCL/表面活性剂纤维材料显示出促进细胞生长和组织再生的前景.