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Park Y, Ji ST, Yong U, Das S, Jang WB, Ahn G, Kwon SM, Jang J. 3D bioprinted tissue-specific spheroidal multicellular microarchitectures for advanced cell therapy. Biofabrication 2021; 13. [PMID: 34433153 DOI: 10.1088/1758-5090/ac212e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 08/25/2021] [Indexed: 01/05/2023]
Abstract
Intercellular interaction is the most crucial factor in promoting cell viability and functionality in an engineered tissue system. Of the various shapes available for cell-laden constructs, spheroidal multicellular microarchitectures (SMMs) have been introduced as building blocks and injectable cell carriers with substantial cell-cell and cell-extracellular matrix (ECM) interactions. Here, we developed a precise and expeditious SMM printing method that can create a tissue-specific microenvironment and thus be potentially useful for cell therapy. This printing strategy is designed to manufacture SMMs fabricated with optimal bioink blended with decellularized ECM and alginate to enhance the functional performance of the encapsulated cells. Experimental results showed that the proposed method allowed for size controllability and mass production of SMMs with high cell viability. Moreover, SMMs co-cultured with endothelial cells promoted lineage-specific maturation and increased functionality compared to monocultured SMMs. Overall, it was concluded that SMMs have the potential for use in cell therapy due to their high cell retention and proliferation rate compared to single-cell injection, particularly for efficient tissue regeneration after myocardial infarction. This study suggests that utilizing microextrusion-based 3D bioprinting technology to encapsulate cells in cell-niche-standardized SMMs can expand the range of possible applications.
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Affiliation(s)
- Yejin Park
- Department of Convergence IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Kyungbuk 37673, Republic of Korea
| | - Seung Taek Ji
- Stem Cell Research Center, Medical Research Institute, Pusan National University School of Medicine, Yangsan, Kyungnam 50612, Republic of Korea
| | - Uijung Yong
- Department of Convergence IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Kyungbuk 37673, Republic of Korea
| | - Sanskrita Das
- Department of Biomedical Engineering, Emory University, Atlanta, GA 30322, United States of America
| | - Woong Bi Jang
- Stem Cell Research Center, Medical Research Institute, Pusan National University School of Medicine, Yangsan, Kyungnam 50612, Republic of Korea
| | - Geunseon Ahn
- Research Institute, Sphebio Co., Ltd, Pohang, Kyungbuk 37666, Republic of Korea
| | - Sang-Mo Kwon
- Stem Cell Research Center, Medical Research Institute, Pusan National University School of Medicine, Yangsan, Kyungnam 50612, Republic of Korea
| | - Jinah Jang
- Department of Convergence IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Kyungbuk 37673, Republic of Korea.,School of Interdisciplinary Bioscience and Bioengineering, POSTECH, Pohang, Kyungbuk 37673, Republic of Korea.,Department of Mechanical Engineering, POSTECH, Pohang, Kyungbuk 37673, Republic of Korea
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