Engineering Liver Microtissues for Disease Modeling and Regenerative Medicine
| Autor: | Yang Xiao, Ozgenur Celik, Cong Xu, Dantong Huang, Sarah B. Gibeley, Kam W. Leong, Henry N. Ginsberg |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Translational research 02 engineering and technology Disease Computational biology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics medicine.disease 01 natural sciences Regenerative medicine Article 0104 chemical sciences Electronic Optical and Magnetic Materials Biomaterials Liver disease medicine.anatomical_structure Tissue engineering Hepatocyte Electrochemistry medicine Droplet microfluidics 0210 nano-technology Induced pluripotent stem cell |
| Zdroj: | Adv Funct Mater |
| ISSN: | 1616-3028 1616-301X |
| DOI: | 10.1002/adfm.201909553 |
| Popis: | The burden of liver diseases is increasing worldwide, accounting for two million deaths annually. In the past decade, tremendous progress has been made in the basic and translational research of liver tissue engineering. Liver microtissues are small, three-dimensional hepatocyte cultures that recapitulate liver physiology and have been used in biomedical research and regenerative medicine. This review summarizes recent advances, challenges, and future directions in liver microtissue research. Cellular engineering approaches are used to sustain primary hepatocytes or produce hepatocytes derived from pluripotent stem cells and other adult tissues. Three-dimensional microtissues are generated by scaffold-free assembly or scaffold-assisted methods such as macroencapsulation, droplet microfluidics, and bioprinting. Optimization of the hepatic microenvironment entails incorporating the appropriate cell composition for enhanced cell-cell interactions and niche-specific signals, and creating scaffolds with desired chemical, mechanical and physical properties. Perfusion-based culture systems such as bioreactors and microfluidic systems are used to achieve efficient exchange of nutrients and soluble factors. Taken together, systematic optimization of liver microtissues is a multidisciplinary effort focused on creating liver cultures and on-chip models with greater structural complexity and physiological relevance for use in liver disease research, therapeutic development, and regenerative medicine. |
| Databáze: | OpenAIRE |
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