发布: 2018年08月20日第8卷第16期 DOI: 10.21769/BioProtoc.2968 浏览次数: 8668
评审: Giusy TornilloAlak MannaSurabhi Sonam
Abstract
The 3D culture of human mesenchymal stem cells (hMSCs) represents a more physiological environment than classical 2D culture and has been used to enhance the MSC secretome or extend cell survival after transplantation. Here we describe a simple and affordable method to generate 3D spheroids of hMSCs by seeding them at high density in a low-binding 96-well plate.
Spheroids of hMSCs cultured in low-binding 96-well plates can be used to study the basic biology of the cells and to generate conditioned media or spheroids to be used in transplantation therapeutic approaches. These MSCs or their secretome can be used as a regenerative therapy and for tissue repair across multiple disease areas, including neurodegeneration.
In comparison to other methods (hanging drop, use of gels or biomaterials, magnetic levitation, etc.), the method described here is simple and affordable with no need to use specialized equipment, expensive materials or complex reagents.
Background
Mesenchymal stem cells (MSCs) are an attractive candidate for the development of novel regenerative therapies for diseases such as stroke or amyotrophic lateral sclerosis (Chen et al., 2001; Bang et al., 2005; Boido et al., 2014). Their versatility makes the optimization and standardization of techniques essential to ensure MSC therapies can provide as much benefit as possible. One possible way to maximize the therapeutic potential (e.g., enhanced secretion of anti-inflammatory mediators) of MSCs is to culture them in 3D (Bartosh et al., 2010). Cells do not normally grow in monolayers in physiological conditions, therefore culturing them in 3D provides a more realistic environment, and increases secretion of certain factors such as vascular endothelial growth factor (VEGF) or granulocyte-colony stimulating factor (GCSF), amongst others (Caplan and Correa, 2011; Redondo-Castro et al., 2018). Some of these factors exert beneficial actions leading to an enhanced repair response (Torres-Espín et al., 2013; Kalladka and Muir, 2014) and by modulating the inflammatory component (Bernardo and Fibbe, 2013; Mathew et al., 2017).
Several methods have been developed to generate spheroids including magnetic levitation (Haisler et al., 2013); nanoparticles (Daquinag et al., 2013), hanging drop techniques (Bartosh et al., 2010; Murphy et al., 2014), suspension methods (Carpenedo et al., 2007) and hydrogels (Laschke et al., 2013; Tseng et al., 2017). Some of these methods, despite being effective, are time consuming or expensive as they require complex reagents or equipment (Cha et al., 2017). For this reason, we have been culturing spheroids using a very simple method (Redondo-Castro et al., 2018) that only requires a low-binding 96-well plate combined with a high-density suspension of cells.
With this method, we are able to obtain mature spheroids in a few days, with a very high rate of efficiency and reproducibility. Moreover, phenotypic characterization of spheroids shows that this method could be really useful for researchers developing cell therapies (either cell suspensions for transplants or generating cell-derived products such as conditioned media), as well as in other research fields.
Materials and Reagents
Equipment
Software
Procedure
文章信息
版权信息
© 2018 The Authors; exclusive licensee Bio-protocol LLC.
如何引用
Redondo-Castro, E., Cunningham, C. J., Miller, J., Cain, S. A., Allan, S. M. and Pinteaux, E. (2018). Generation of Human Mesenchymal Stem Cell 3D Spheroids Using Low-binding Plates. Bio-protocol 8(16): e2968. DOI: 10.21769/BioProtoc.2968.
分类
干细胞 > 成体干细胞 > 间充质干细胞
细胞生物学 > 细胞分离和培养 > 3D细胞培养
细胞生物学 > 基于细胞的分析方法 > 非贴壁培养
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