Journal
CYTOTHERAPY
Volume 20, Issue 1, Pages 95-107Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jcyt.2017.08.008
Keywords
cell behavior; hepatocyte; human induced pluripotent stem cells; hydrogel
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Funding
- Tianjin Health Industry Key Project [16KG150]
- Tianjin Health Bureau [2012KY02]
- Tianjin Science Foundation of China [15JCQNJC45700]
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Background aims. Human induced pluripotent stem cells (hiPSCs) are becoming increasingly popular in research endeavors due to their potential for clinical application; however, such application is challenging due to limitations such as inferior function and low induction efficiency. In this study, we aimed to establish a three-dimensional (3D) culture condition to mimic the environment in which hepatogenesis occurs in vivo to enhance the differentiation of hiPSCs for large-scale culture and high throughput BAL application. Methods. We used hydrogel to create hepatocyte-like cell (HLC) spheroids in a 3D culture condition and analyzed the cell-behavior and differentiation properties of hiPSCs in a synthetic nanofiber scaffold. Results. We found that treating cells with Y-27632 promoted the formation of spheroids, and the cells aggregated more rapidly in a 3D culture condition. The ALB secretion, urea production and glycogen synthesis by HLCs in 3D were significantly higher than those grown in a 2-dimensional culture condition. In addition, the metabolic activities of the CYP450 enzymes were also higher in cells differentiated in the 3D culture condition. Conclusions. 3D hydrogel culture condition can promote differentiation of hiPSCs into hepatocytes. The 3D culture approach could be applied to the differentiation of hiPSCs into hepatocytes for bioartificial liver.
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