1
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Pumford EA, Jackson Hoffman BA, Kasko AM. Nontoxic Initiator Alternatives to TEMED for Redox Hydrogel Polymerization. ACS APPLIED BIO MATERIALS 2024; 7:2264-2271. [PMID: 38486460 DOI: 10.1021/acsabm.3c01264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Polymeric hydrogels are versatile biomaterials, offering unique advantages in tunability and biocompatibility that make them well-suited to a range of applications. Cross-linking, a fundamental step in hydrogel fabrication, is often initiated using a toxic redox system, ammonium persulfate (APS), and tetramethylethylenediamine (TEMED), which hinders hydrogel utility in direct contact with cells (e.g., wound dressings). To overcome this limitation, we developed alternative redox gelation systems that serve as nontoxic replacements for TEMED. The alternate initiators were either synthetic or bioinspired amine-containing polymers, Glycofect and polyethylenimine (PEI). Used with APS, these initiator candidates produced hydrogels with short gelation time and comparable moduli to TEMED-based gels and underwent further mechanical testing and biocompatibility characterization. While achieving mechanical properties similar to those of the control, the gels based on Glycofect and PEI outperformed TEMED-based gels in two cell viability studies, with Glycofect-initiated gels displaying significantly higher cytocompatibility. Taken together, these results indicate that Glycofect may serve as a drop-in replacement for TEMED to fabricate hydrogels with improved biocompatibility.
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Affiliation(s)
- Elizabeth A Pumford
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Brooke A Jackson Hoffman
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Andrea M Kasko
- Department of Bioengineering, University of California Los Angeles, Los Angeles, California 90095, United States
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2
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Li W, Wang M, Wang S, Wang X, Avila A, Kuang X, Mu X, Garciamendez CE, Jiang Z, Manríquez J, Tang G, Guo J, Mille LS, Robledo JA, Wang D, Cheng F, Li H, Flores RS, Zhao Z, Delavaux C, Wang Z, López A, Yi S, Zhou C, Gómez A, Schuurmans C, Yang GY, Wang Y, Zhang X, Zhang X, Zhang YS. An Adhesive Bioink toward Biofabrication under Wet Conditions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205078. [PMID: 36587991 PMCID: PMC10960222 DOI: 10.1002/smll.202205078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Three-dimensional (3D) bioprinting is driving significant innovations in biomedicine over recent years. Under certain scenarios such as in intraoperative bioprinting, the bioinks used should exhibit not only cyto/biocompatibility but also adhesiveness in wet conditions. Herein, an adhesive bioink composed of gelatin methacryloyl, gelatin, methacrylated hyaluronic acid, and skin secretion of Andrias davidianus is designed. The bioink exhibits favorable cohesion to allow faithful extrusion bioprinting in wet conditions, while simultaneously showing good adhesion to a variety of surfaces of different chemical properties, possibly achieved through the diverse bonds presented in the bioink formulation. As such, this bioink is able to fabricate sophisticated planar and volumetric constructs using extrusion bioprinting, where the dexterity is further enhanced using ergonomic handheld bioprinters to realize in situ bioprinting. In vitro experiments reveal that cells maintain high viability; further in vivo studies demonstrate good integration and immediate injury sealing. The characteristics of the bioink indicate its potential widespread utility in extrusion bioprinting and will likely broaden the applications of bioprinting toward situations such as in situ dressing and minimally invasive tissue regeneration.
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Affiliation(s)
- Wanlu Li
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 20030, P. R. China
| | - Mian Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Shiwei Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- National Center for International Joint Research of Micro-Nano Molding Technology, School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Xiaoping Wang
- Chongqing Key Laboratory of Oral Disease and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education & Stomatological Hospital of Chongqing Medical University, Chongqing, 401174, P. R. China
| | - Alan Avila
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Biotechnology Program, Tecnológico de Monterrey, Monterrey, NL, 64849, México
| | - Xiao Kuang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Xuan Mu
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Carlos Ezio Garciamendez
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Zewei Jiang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Jennifer Manríquez
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Biotechnology Program, Tecnológico de Monterrey, Monterrey, NL, 64849, México
| | - Guosheng Tang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Jie Guo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Luis Santiago Mille
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Juan Antonio Robledo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Di Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Feng Cheng
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Hongbin Li
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Regina Sanchez Flores
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Zhibo Zhao
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Clément Delavaux
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Zixuan Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Arturo López
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Biotechnology Program, Tecnológico de Monterrey, Monterrey, NL, 64849, México
| | - Sili Yi
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Cuiping Zhou
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Ameyalli Gómez
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Biotechnology Program, Tecnológico de Monterrey, Monterrey, NL, 64849, México
| | - Carl Schuurmans
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Science for Life, Utrecht University, Universiteitsweg 99, 3508, TB, Utrecht, The Netherlands
| | - Guo-Yuan Yang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 20030, P. R. China
| | - Yongting Wang
- School of Biomedical Engineering and Med-X Research Institute, Shanghai Jiao Tong University, Shanghai, 20030, P. R. China
| | - Xingcai Zhang
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- School of Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ximu Zhang
- Chongqing Key Laboratory of Oral Disease and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education & Stomatological Hospital of Chongqing Medical University, Chongqing, 401174, P. R. China
| | - Yu Shrike Zhang
- Chongqing Key Laboratory of Oral Disease and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education & Stomatological Hospital of Chongqing Medical University, Chongqing, 401174, P. R. China
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3
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Zhao W, Hu C, Xu T. In vivo bioprinting: Broadening the therapeutic horizon for tissue injuries. Bioact Mater 2023; 25:201-222. [PMID: 36817820 PMCID: PMC9932583 DOI: 10.1016/j.bioactmat.2023.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/06/2023] [Accepted: 01/25/2023] [Indexed: 02/09/2023] Open
Abstract
Tissue injury is a collective term for various disorders associated with organs and tissues induced by extrinsic or intrinsic factors, which significantly concerns human health. In vivo bioprinting, an emerging tissue engineering approach, allows for the direct deposition of bioink into the defect sites inside the patient's body, effectively addressing the challenges associated with the fabrication and implantation of irregularly shaped scaffolds and enabling the rapid on-site management of tissue injuries. This strategy complements operative therapy as well as pharmacotherapy, and broadens the therapeutic horizon for tissue injuries. The implementation of in vivo bioprinting requires targeted investigations in printing modalities, bioinks, and devices to accommodate the unique intracorporal microenvironment, as well as effective integrations with intraoperative procedures to facilitate its clinical application. In this review, we summarize the developments of in vivo bioprinting from three perspectives: modalities and bioinks, devices, and clinical integrations, and further discuss the current challenges and potential improvements in the future.
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Affiliation(s)
- Wenxiang Zhao
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Beijing Key Laboratory of Precision/Ultra-Precision Manufacturing Equipments and Control, Tsinghua University, Beijing, 100084, China
| | - Chuxiong Hu
- State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China
- Beijing Key Laboratory of Precision/Ultra-Precision Manufacturing Equipments and Control, Tsinghua University, Beijing, 100084, China
| | - Tao Xu
- Center for Bio-intelligent Manufacturing and Living Matter Bioprinting, Research Institute of Tsinghua University in Shenzhen, Tsinghua University, Shenzhen, 518057, China
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4
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Zhou F, Xin L, Wang S, Chen K, Li D, Wang S, Huang Y, Xu C, Zhou M, Zhong W, Wang H, Chen T, Song J. Portable Handheld "SkinPen" Loaded with Biomaterial Ink for In Situ Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37262337 DOI: 10.1021/acsami.3c02825] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In situ bioprinting has emerged as an attractive tool for directly depositing therapy ink at the defective area to adapt to the irregular wound shape. However, traditional bioprinting exhibits an obvious limitation in terms of an unsatisfactory bioadhesive effect. Here, a portable handheld bioprinter loaded with biomaterial ink is designed and named "SkinPen". Gelatin methacrylate (GelMA) and Cu-containing bioactive glass nanoparticles (Cu-BGn) serve as the main components to form the hydrogel ink, which displays excellent biocompatibility and antibacterial and angiogenic properties. More importantly, by introducing ultrasound and ultraviolet in a sequential programmed manner, the SkinPen achieves in situ instant gelation and amplified (more than threefold) bioadhesive shear strength. It is suggested that ultrasound-induced cavitation and the resulting topological entanglement contribute to the enhanced bioadhesive performance together. Combining the ultrasound-enhanced bioadhesion with the curative role of the hydrogel, the SkinPen shows a satisfactory wound-healing effect in diabetic rats. Given the detachable property of the SkinPen, the whole device can be put in a first-aid kit. Therefore, the application scenarios can be expanded to many kinds of accidents. Overall, this work presents a portable handheld SkinPen that might provide a facile but effective approach for clinical wound management.
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Affiliation(s)
- Fuyuan Zhou
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Liangjing Xin
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Shuya Wang
- Key State Laboratory of Fine Chemicals, Dalian 116024, P. R. China
- School of Bioengineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Kaiwen Chen
- Key State Laboratory of Fine Chemicals, Dalian 116024, P. R. China
- School of Bioengineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Dize Li
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Si Wang
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Yuanding Huang
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Chuanhang Xu
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Mengjiao Zhou
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Wenjie Zhong
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Huanan Wang
- Key State Laboratory of Fine Chemicals, Dalian 116024, P. R. China
- School of Bioengineering, Dalian University of Technology, Dalian 116024, P. R. China
| | - Tao Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
| | - Jinlin Song
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, P. R. China
- Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing 401147, P. R. China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, P. R. China
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5
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Li R, Zhao Y, Zheng Z, Liu Y, Song S, Song L, Ren J, Dong J, Wang P. Bioinks adapted for in situ bioprinting scenarios of defect sites: a review. RSC Adv 2023; 13:7153-7167. [PMID: 36875875 PMCID: PMC9982714 DOI: 10.1039/d2ra07037e] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 02/21/2023] [Indexed: 03/06/2023] Open
Abstract
In situ bioprinting provides a reliable solution to the problem of in vitro tissue culture and vascularization by printing tissue directly at the site of injury or defect and maturing the printed tissue using the natural cell microenvironment in vivo. As an emerging field, in situ bioprinting is based on computer-assisted scanning results of the defect site and is able to print cells directly at this site with biomaterials, bioactive factors, and other materials without the need to transfer prefabricated grafts as with traditional in vitro 3D bioprinting methods, and the resulting grafts can accurately adapt to the target defect site. However, one of the important reasons hindering the development of in situ bioprinting is the absence of suitable bioinks. In this review, we will summarize bioinks developed in recent years that can adapt to in situ printing scenarios at the defect site, considering three aspects: the in situ design strategy of bioink, the selection of commonly used biomaterials, and the application of bioprinting to different treatment scenarios.
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Affiliation(s)
- Ruojing Li
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China
| | - Yeying Zhao
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China
| | - Zhiqiang Zheng
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China
| | - Yangyang Liu
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China
| | - Shurui Song
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China
| | - Lei Song
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China
| | - Jianan Ren
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China .,Department of General Surgery, The Affiliated General Hospital of Nanjing Military Region 305 Zhongshan East Road Nanjing 210016 China
| | - Jing Dong
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China .,Special Medicine Department, Medical College, Qingdao University Qingdao 266071 China
| | - Peige Wang
- Department of Emergency Surgery, The Affiliated Hospital of Qingdao University 16 Jiangsu Road Qingdao 266000 China
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Ding SL, Liu X, Zhao XY, Wang KT, Xiong W, Gao ZL, Sun CY, Jia MX, Li C, Gu Q, Zhang MZ. Microcarriers in application for cartilage tissue engineering: Recent progress and challenges. Bioact Mater 2022; 17:81-108. [PMID: 35386447 PMCID: PMC8958326 DOI: 10.1016/j.bioactmat.2022.01.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 12/11/2022] Open
Abstract
Successful regeneration of cartilage tissue at a clinical scale has been a tremendous challenge in the past decades. Microcarriers (MCs), usually used for cell and drug delivery, have been studied broadly across a wide range of medical fields, especially the cartilage tissue engineering (TE). Notably, microcarrier systems provide an attractive method for regulating cell phenotype and microtissue maturations, they also serve as powerful injectable carriers and are combined with new technologies for cartilage regeneration. In this review, we introduced the typical methods to fabricate various types of microcarriers and discussed the appropriate materials for microcarriers. Furthermore, we highlighted recent progress of applications and general design principle for microcarriers. Finally, we summarized the current challenges and promising prospects of microcarrier-based systems for medical applications. Overall, this review provides comprehensive and systematic guidelines for the rational design and applications of microcarriers in cartilage TE. This review summarized fabrication techniques and cartilage repaired application of microcarriers. The appropriate materials and design principle for microcarriers in cartilage tissue engineering are discussed. Promising future perspectives and challenges in microcarriers fields are outlined.
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Wang X, Yang C, Yu Y, Zhao Y. In Situ 3D Bioprinting Living Photosynthetic Scaffolds for Autotrophic Wound Healing. Research (Wash D C) 2022; 2022:9794745. [PMID: 35387266 PMCID: PMC8961369 DOI: 10.34133/2022/9794745] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 02/21/2022] [Indexed: 12/29/2022] Open
Abstract
Three-dimensional (3D) bioprinting has been extensively explored for tissue repair and regeneration, while the insufficient nutrient and oxygen availability in the printed constructs, as well as the lack of adaptive dimensions and shapes, compromises the overall therapeutic efficacy and limits their further application. Herein, inspired by the natural symbiotic relationship between salamanders and algae, we present novel living photosynthetic scaffolds by using an in situ microfluidic-assisted 3D bioprinting strategy for adapting irregular-shaped wounds and promoting their healing. As the oxygenic photosynthesis unicellular microalga (Chlorella pyrenoidosa) was incorporated during 3D printing, the generated scaffolds could produce sustainable oxygen under light illumination, which facilitated the cell proliferation, migration, and differentiation even in hypoxic conditions. Thus, when the living microalgae-laden scaffolds were directly printed into diabetic wounds, they could significantly accelerate the chronic wound closure by alleviating local hypoxia, increasing angiogenesis, and promoting extracellular matrix (ECM) synthesis. These results indicate that the in situ bioprinting of living photosynthetic microalgae offers an effective autotrophic biosystem for promoting wound healing, suggesting a promising therapeutic strategy for diverse tissue engineering applications.
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Affiliation(s)
- Xiaocheng Wang
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325001, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Chaoyu Yang
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325001, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
| | - Yunru Yu
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325001, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yuanjin Zhao
- Department of Rheumatology and Immunology, Institute of Translational Medicine, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325001, China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325001, China
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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8
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Wang M, Li W, Luo Z, Tang G, Mu X, Kuang X, Guo J, Zhao Z, Flores RS, Jiang Z, Lian L, Japo JO, Ghaemmaghami AM, Zhang YS. A multifunctional micropore-forming bioink with enhanced anti-bacterial and anti-inflammatory properties. Biofabrication 2022; 14:10.1088/1758-5090/ac5936. [PMID: 35226880 PMCID: PMC8962756 DOI: 10.1088/1758-5090/ac5936] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 02/28/2022] [Indexed: 12/12/2022]
Abstract
Three-dimensional (3D) bioprinting has emerged as an enabling tool for various biomedical applications, such as tissue regeneration and tissue model engineering. To this end, the development of bioinks with multiple functions plays a crucial role in the applications of 3D bioprinting technologies. In this study, we propose a new bioink based on two immiscible aqueous phases of gelatin methacryloyl (GelMA) and dextran, further endowed with anti-bacterial and anti-inflammatory properties. This micropore-forming GelMA-dextran (PGelDex) bioink exhibited excellent printability with vat-polymerization, extrusion, and handheld bioprinting methods. The porous structure was confirmed after bioprinting, which promoted the spreading of the encapsulated cells, exhibiting the exceptional cytocompatibility of this bioink formulation. To extend the applications of such a micropore-forming bioink, interleukin-4 (IL-4)-loaded silver-coated gold nanorods (AgGNRs) and human mesenchymal stem cells (MSCs) were simultaneously incorporated, to display synergistic anti-infection behavior and immunomodulatory function. The results revealed the anti-bacterial properties of the AgGNR-loaded PGelDex bioink for both Gram-negative and Gram-positive bacteria. The data also indicated that the presence of IL-4 and MSCs facilitated macrophage M2-phenotype differentiation, suggesting the potential anti-inflammatory feature of the bioink. Overall, this unique anti-bacterial and immunomodulatory micropore-forming bioink offers an effective strategy for the inhibition of bacterial-induced infections as well as the ability of immune-regulation, which is a promising candidate for broadened tissue bioprinting applications.
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Affiliation(s)
- Mian Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Wanlu Li
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Zeyu Luo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Guosheng Tang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Xuan Mu
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Xiao Kuang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Jie Guo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Zhibo Zhao
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Regina Sanchez Flores
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Zewei Jiang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Liming Lian
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Julia Olga Japo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
| | - Amir M Ghaemmaghami
- Immunology and Immuno-bioengineering Group, School of Life Science, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America
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