基于纳米纤维的凝基的支架支持人体脂肪酸衍生的介酶干/干细胞粘附,活力和生长
Lautaro Rivera1, Matthäus Davi Popov Pereira da Cunha2, Rocío Jazmín Sabbatella2
1Instituto de Histología y Embriología de Mendoza (IHEM, CONICET-Universidad Nacional de Cuyo), Mendoza, Argentina.
Journal of biomedical materials research. Part A
|April 22, 2025
概括
电支架指导细胞的行为. 凝甲酸盐 (GelMA) 与聚甲酸盐 (PCL) 或聚乙烯甘二甲酸盐 (PEGDMA) 混合,形成了支架,其中纤维对齐,而不是物质的疏水性,决定了人类脂肪衍生中介质层细胞 (hAD-MSC) 的对齐.
科学领域:
- 生物材料工程 生物材料工程
- 组织工程是组织工程.
- 细胞生物学 细胞生物学
背景情况:
- 细胞外矩阵 (ECM) 结构影响细胞行为.
- 电支架模仿ECM架构用于体外细胞调节.
- 材料选择对于细胞粘附和在支架上生长至关重要.
研究的目的:
- 开发具有成本效益的电支架,用于人类脂肪衍生的介酶体 stromal 细胞 (hAD-MSC).
- 研究材料组成 (GelMA与PCL或PEGDMA混合) 和纤维方向对hAD-MSC行为的影响.
- 确定指导组织再生中的细胞行为的关键因素.
主要方法:
- 凝甲酸盐 (GelMA) 混合与聚烯酸 (PCL) 或聚乙烯糖醇二甲酸盐 (PEGDMA) 的电.
- 用随机定向和对齐的纤维制造脚手架.
- 在已开发的支架上培养和观察hAD-MSC行为.
主要成果:
- 纤维的方向显著影响了hAD-MSC的行为.
- 细胞与纤维方向对齐,不论材料的疏水性.
- 纤维对齐表明对细胞扩散和方向产生主导作用.
结论:
- 材料选择和纤维方向是设计电脚架的关键参数.
- 在组织再生应用中,对齐纤维有效地指导hAD-MSC行为.
- 脚手架的设计可以克服材料属性的局限性,以引导细胞反应.
相关概念视频
The Extracellular Matrix
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.Composition of the Extracellular MatrixThe extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse molecules.
Lipids as Anchors
In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains the...
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains the...


