期刊
ADVANCED HEALTHCARE MATERIALS
卷 10, 期 15, 页码 -出版社
WILEY
DOI: 10.1002/adhm.202001600
关键词
3D printing; bioprinting; cortical organoids; hydrogel scaffolds; neural tissues; tissue engineered constructs
资金
- NIMH NIH HHS [R01 MH126195] Funding Source: Medline
The human nervous system is complex and challenging to study, but animal and in vitro models provide alternatives. The field of neural tissue engineering is rapidly advancing with a focus on 3D bioprinting technology applications in neural TE.
The human nervous system is a remarkably complex physiological network that is inherently challenging to study because of obstacles to acquiring primary samples. Animal models offer powerful alternatives to study nervous system development, diseases, and regenerative processes, however, they are unable to address some species-specific features of the human nervous system. In vitro models of the human nervous system have expanded in prevalence and sophistication, but still require further advances to better recapitulate microenvironmental and cellular features. The field of neural tissue engineering (TE) is rapidly adopting new technologies that enable scientists to precisely control in vitro culture conditions and to better model nervous system formation, function, and repair. 3D bioprinting is one of the major TE technologies that utilizes biocompatible hydrogels to create precisely patterned scaffolds, designed to enhance cellular responses. This review focuses on the applications of 3D bioprinting in the field of neural TE. Important design parameters are considered when bioprinting neural stem cells are discussed. The emergence of various bioprinted in vitro platforms are also reviewed for developmental and disease modeling and drug screening applications within the central and peripheral nervous systems, as well as their use as implants for in vivo regenerative therapies.
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