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在微载体上增强骨髓衍生中酶体干细胞的增长,这些干细胞与工程基本纤维细胞生长因子相连

Shiina Pasanen^1,2, Archana Mootha¹, Isao Hirata¹

¹Department of Biomaterials, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Biotechnology journal

|June 11, 2025

概括

工程微载体结合基本纤维细胞生长因子 (bFGF) 增强生物反应器中的人类介质干细胞 (hMSC) 扩张. 这种方法通过改善细胞生长而不会改变hMSC的关键特征来支持再生疗法.

科学领域:

生物技术是生物技术.
再生医学是一种再生医学.
细胞培养工程细胞培养工程

背景情况:

基于微载体的生物反应器对于扩展人类介质干细胞 (hMSCs) 用于再生疗法至关重要.
优化扩张效率是hMSCs临床应用的关键.

研究的目的:

开发具有绑定基本纤维细胞生长因子 (bFGF) 的功能化的新型微载体,以增强hMSC扩张.
评估两种不同的原结合 (CBPs) 对bFGF结合的疗效.

主要方法:

使用重组DNA技术将bFGF与原结合 (CBP1和CBP2) 融合.
嵌合式蛋白质的固定在I型原涂层微载体上.
通过循环二重化和结构预测评估蛋白质结构.
在hMSC培养物中评估生物功能,包括生长,表面标记物表达和分化潜力.

主要成果:

优化的再折叠条件增加了可溶和生物活性CBP1-bFGF和CBP2-bFGF的产量.
与bFGF结合的微载体显著促进了hMSC的扩散.
hMSC表面标记物表达和骨质分化能力基本保持不变.

结论:

与bFGF结合的微载体是生物反应器中高效hMSC扩张的有希望的策略.
这种方法有可能推进基于hMSC的再生疗法.
开发的微载体保持了治疗用途所需的hMSCs的关键特性.

关键词:

生物反应器是一个生物反应器.细胞生长细胞的生长.增长因子增长因子微载体微载体是什么意思再生医学是一种再生医学.干细胞是一种干细胞.

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Mesenchymal Stem Cells

Mesenchymal Stem Cells

Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...