期刊
ADVANCED HEALTHCARE MATERIALS
卷 10, 期 18, 页码 -出版社
WILEY
DOI: 10.1002/adhm.202100581
关键词
3D cell printing bioink; central nervous system tissue; lower motor neuron; neural tissue engineering; neuromuscular junction
资金
- National Research Foundation of Korea (NRF) - Korean Government (MSIP) [NRF-2019R1A3A3005437]
- Convergence Technology Development Program for Bionic Arm through the National Research Foundation of Korea (NRF) - Ministry of Science and ICT [2014M3C1B2048632]
3D cell printing technology is widely studied for medical applications, with a particular focus on neuromuscular tissue. The use of CNSdECM bioink for 3D neuromuscular tissue fabrication shows promising results in supporting motor neuron activity and axon growth. This bioink holds great potential for producing tissue-engineered motor systems using 3D cell printing.
3D cell printing technology is in the spotlight for producing 3D tissue or organ constructs useful for various medical applications. In printing of neuromuscular tissue, a bioink satisfying all the requirements is a challenging issue. Gel integrity and motor neuron activity are two major characters because a harmonious combination of extracellular materials essential to motor neuron activity consists of disadvantages in mechanical properties. Here, a method for fabrication of 3D neuromuscular tissue is presented using a porcine central nervous system tissue decellularized extracellular matrix (CNSdECM) bioink. CNSdECM retains CNS tissue-specific extracellular molecules, provides rheological properties crucial for extrusion-based 3D cell printing, and reveals positive effects on the growth and maturity of axons of motor neurons compared with Matrigel. It also allows long-term cultivation of human-induced-pluripotent-stem-cell-derived lower motor neurons and sufficiently supports their cellular behavior to carry motor signals to muscle fibers. CNSdECM bioink holds great promise for producing a tissue-engineered motor system using 3D cell printing.
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