Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10229393 | Biomaterials | 2012 | 8 Pages |
Abstract
There is great demand for constructing well-organized three-dimensional (3D) tissues in vitro. Here, we developed a 3D stacked culture method using biodegradable poly(d,l-lactide-co- glycolide) (PLGA) membranes with defined topography. Pore size and porosity of the membranes can be controlled by changing the moisture content during fabrication. The optimized membrane served as a scaffold to manipulate small hepatocyte (SH) layers when they were stacked, while it degraded after stacking, resulting in the reorganization of the cells into a 3D stacked structure. Immunofluorescent staining for domain markers of cell polarity and electron microscopy confirmed that the cells in the 3D stacked structures recovered polarity. Furthermore, the cells exhibited improved liver-specific function as compared with cells in a monolayer. This 3D stacked culture may enable reconstruction of multilayered hepatic tissues with highly differentiated functions in vitro.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Bioengineering
Authors
Junichi Kasuya, Ryo Sudo, Ryu Tamogami, Genta Masuda, Toshihiro Mitaka, Mariko Ikeda, Kazuo Tanishita,