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Li J, Kim C, Alizadeh HV, Garg S, Bruyas A, Zhao P, Passos ISD, Pan CC, Pérez ASF, Skylar-Scott MA, Kim S, Yang YP. Development of a Novel Hybprinter-SAM for Functionally Graded Tissue Engineering Constructs with Patterned and Localized Biochemical Signals. RESEARCH SQUARE 2025:rs.3.rs-5898561. [PMID: 39975888 PMCID: PMC11838729 DOI: 10.21203/rs.3.rs-5898561/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2025]
Abstract
Engineering native-mimetic tissue constructs is challenging due to their intricate biological and structural gradients. To address this, Hybprinter-SAM was developed by integrating three bioprinting technologies: syringe extrusion (SE), acoustic droplet ejection (ADE) and molten material extrusion (MME). This system not only enables the creation of mechanical gradients by integrating soft and rigid materials spanning 7 order magnitude of stiffness but also facilitates precise patterning and controlled localization of biochemical signals within printed scaffolds. This capability is beneficial in replicating the complexity of native tissues to enhance functionality. Both the printing process and biomaterials were optimized to balance printability, mechanical integrity, and biocompatibility. As a proof of concept, Hybprinter-SAM was used in a bone-tendon regeneration study to engineer a multi-material construct with patterned fibroblast growth factor 2 (FGF-2), resulting in markers indicative of fibrocartilage development. These findings highlight the potential of Hybprinter-SAM as a versatile platform for diverse tissue engineering applications that require complex, functionally graded tissue constructs.
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Affiliation(s)
- Jiannan Li
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Carolyn Kim
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Mechanical Engineering, School of Engineering, Stanford University, Stanford, CA 94305, USA
| | - Hossein V. Alizadeh
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Shreya Garg
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Bioengineering, School of Engineering, Stanford University, Stanford, CA 94305, USA
| | - Arnaud Bruyas
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Peng Zhao
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Isadora S. D. Passos
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Mechanical Engineering, School of Engineering, Stanford University, Stanford, CA 94305, USA
| | - Chi-Chun Pan
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Andrea S. Flores Pérez
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Bioengineering, School of Engineering, Stanford University, Stanford, CA 94305, USA
| | - Mark A. Skylar-Scott
- Department of Bioengineering, School of Engineering, Stanford University, Stanford, CA 94305, USA
| | - Sungwoo Kim
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
| | - Yunzhi P. Yang
- Department of Orthopaedic Surgery, School of Medicine, Stanford University, Stanford, CA 94305, USA
- Department of Bioengineering, School of Engineering, Stanford University, Stanford, CA 94305, USA
- Department of Material Science and Engineering, School of Engineering, Stanford University, Stanford, CA 94305, USA
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Chae S, Cho DW. Biomaterial-based 3D bioprinting strategy for orthopedic tissue engineering. Acta Biomater 2023; 156:4-20. [PMID: 35963520 DOI: 10.1016/j.actbio.2022.08.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 07/05/2022] [Accepted: 08/02/2022] [Indexed: 02/02/2023]
Abstract
The advent of three-dimensional (3D) bioprinting has enabled impressive progress in the development of 3D cellular constructs to mimic the structural and functional characteristics of natural tissues. Bioprinting has considerable translational potential in tissue engineering and regenerative medicine. This review highlights the rational design and biofabrication strategies of diverse 3D bioprinted tissue constructs for orthopedic tissue engineering applications. First, we elucidate the fundamentals of 3D bioprinting techniques and biomaterial inks and discuss the basic design principles of bioprinted tissue constructs. Next, we describe the rationale and key considerations in 3D bioprinting of tissues in many different aspects. Thereafter, we outline the recent advances in 3D bioprinting technology for orthopedic tissue engineering applications, along with detailed strategies of the engineering methods and materials used, and discuss the possibilities and limitations of different 3D bioprinted tissue products. Finally, we summarize the current challenges and future directions of 3D bioprinting technology in orthopedic tissue engineering and regenerative medicine. This review not only delineates the representative 3D bioprinting strategies and their tissue engineering applications, but also provides new insights for the clinical translation of 3D bioprinted tissues to aid in prompting the future development of orthopedic implants. STATEMENT OF SIGNIFICANCE: 3D bioprinting has driven major innovations in the field of tissue engineering and regenerative medicine; aiming to develop a functional viable tissue construct that provides an alternative regenerative therapy for musculoskeletal tissue regeneration. 3D bioprinting-based biofabrication strategies could open new clinical possibilities for creating equivalent tissue substitutes with the ability to customize them to meet patient demands. In this review, we summarize the significance and recent advances in 3D bioprinting technology and advanced bioinks. We highlight the rationale for biofabrication strategies using 3D bioprinting for orthopedic tissue engineering applications. Furthermore, we offer ample perspective and new insights into the current challenges and future direction of orthopedic bioprinting translation research.
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Affiliation(s)
- Suhun Chae
- Department of Mechanical Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Gyeongsangbuk-do, Pohang 37673, South Korea; EDmicBio Inc., 111 Hoegi-ro, Dongdaemun-gu, Seoul 02445, South Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology, 77 Cheongam-ro, Nam-gu, Gyeongsangbuk-do, Pohang 37673, South Korea; Institute for Convergence Research and Education in Advanced Technology, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.
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